/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=DM+Mono:wght@400;500&display=swap');

/* ===== VARIABLES ===== */
:root {
  --bg:         #080e1a;
  --bg2:        #0d1526;
  --bg3:        #111e35;
  --bg4:        #162240;
  --border:     #1e3050;
  --border2:    #0d1526;
  --text:       #ddeeff;
  --text2:      #6a8fb5;
  --text3:      #334d6e;
  --accent:     #1d9fff;
  --accent2:    #5bc3ff;
  --accent-bg:  #0a2a46;
  --accent-bg2: #061a2c;
  --green:      #20d68a;
  --green-bg:   #04261a;
  --green-text: #6ef5c0;
  --red:        #ff4d6a;
  --red-bg:     #2d0714;
  --red-text:   #ff9aaa;
  --amber:      #ffb830;
  --amber-bg:   #2b1c00;
  --amber-text: #ffe5a0;
  --overlay:    rgba(4,9,20,0.85);
  --radius:     14px;
  --radius-sm:  9px;
  --font:       'DM Sans', sans-serif;
  --font-mono:  'DM Mono', monospace;
  --shadow:     0 8px 32px rgba(0,0,0,0.5);
  --shadow-lg:  0 20px 60px rgba(0,0,0,0.7);
  --card-bg:    rgba(13, 21, 38, 0.65);
  --card-border: rgba(30, 48, 80, 0.65);
  --glow:        rgba(29, 159, 255, 0.4);
}

body.light {
  --bg:         #f0f5ff;
  --bg2:        #ffffff;
  --bg3:        #e4eefb;
  --bg4:        #d6e7fa;
  --border:     #b8d4f0;
  --border2:    #dceeff;
  --text:       #081829;
  --text2:      #2c5f8a;
  --text3:      #7aafd4;
  --accent:     #0077cc;
  --accent2:    #005fa3;
  --accent-bg:  #dbeeff;
  --accent-bg2: #eef7ff;
  --green:      #0fa870;
  --green-bg:   #d4f7eb;
  --green-text: #0a7a52;
  --red:        #e8234a;
  --red-bg:     #ffe0e6;
  --red-text:   #b51535;
  --amber:      #c97000;
  --amber-bg:   #fff4d6;
  --amber-text: #7a4200;
  --overlay:    rgba(8,24,40,0.4);
  --shadow:     0 4px 20px rgba(0,100,200,0.1);
  --shadow-lg:  0 12px 40px rgba(0,80,180,0.15);
  --card-bg:    rgba(255, 255, 255, 0.75);
  --card-border: rgba(184, 212, 240, 0.6);
  --glow:        rgba(0, 119, 204, 0.25);
}

* { margin:0; padding:0; box-sizing:border-box; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 0;
  transition: background 0.25s, color 0.25s;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

/* ===== LOCK SCREEN ===== */
#screen-lock {
  position: fixed; inset: 0;
  background:
    linear-gradient(135deg, rgba(32, 214, 138, 0.12) 0%, transparent 28%),
    linear-gradient(225deg, rgba(255, 184, 48, 0.10) 0%, transparent 30%),
    linear-gradient(180deg, #060b14 0%, #0a1628 52%, #07111f 100%);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow: hidden;
}
#screen-lock::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.55), transparent 72%);
  pointer-events: none;
}
body.light #screen-lock {
  background:
    linear-gradient(135deg, rgba(15, 168, 112, 0.14) 0%, transparent 30%),
    linear-gradient(225deg, rgba(201, 112, 0, 0.14) 0%, transparent 32%),
    linear-gradient(180deg, #f7fbff 0%, #eaf4ff 56%, #f9fcff 100%);
}

.lock-card {
  position: relative;
  background: rgba(9, 18, 34, 0.82);
  border: 1px solid rgba(91, 195, 255, 0.22);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 22px;
  padding: 30px;
  width: 100%;
  max-width: 410px;
  text-align: left;
  box-shadow: 0 26px 80px rgba(0,0,0,0.55), inset 0 1px 0 rgba(255,255,255,0.08);
  animation: lockIn 0.4s cubic-bezier(0.34,1.56,0.64,1);
  overflow: hidden;
}
.lock-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--green), var(--accent), var(--amber));
}
body.light .lock-card {
  background: rgba(255,255,255,0.84);
  border-color: rgba(0,119,204,0.18);
  box-shadow: 0 24px 70px rgba(37, 88, 130, 0.18), inset 0 1px 0 rgba(255,255,255,0.9);
}

@keyframes lockIn {
  from { opacity:0; transform: scale(0.88) translateY(20px); }
  to   { opacity:1; transform: scale(1) translateY(0); }
}

.lock-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.lock-logo {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  object-fit: cover;
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: 0 12px 30px rgba(29,159,255,0.22);
  background: var(--bg3);
}
.lock-kicker {
  color: var(--green-text);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.lock-title {
  font-size: 1.55rem;
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.04em;
  line-height: 1.05;
}
.lock-sub {
  font-size: 0.9rem;
  color: var(--text2);
  margin-bottom: 22px;
  line-height: 1.45;
}
.lock-fields {
  display: flex;
  flex-direction: column;
  gap: 11px;
  width: 100%;
  margin-bottom: 14px;
}

.lock-input {
  width: 100%;
  background: var(--bg3);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 15px 20px;
  font-size: 1.1rem;
  font-family: var(--font-mono);
  letter-spacing: 0.15em;
  text-align: center;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  margin-bottom: 10px;
}
.lock-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg), 0 0 15px var(--glow);
}
.lock-input.shake { animation: shake 0.35s ease; border-color: var(--red) !important; }

#screen-lock .lock-input {
  background: rgba(17, 30, 53, 0.88);
  border: 1px solid rgba(106, 143, 181, 0.28);
  border-radius: 12px;
  padding: 15px 16px;
  font-size: 0.98rem;
  font-family: var(--font);
  font-weight: 700;
  letter-spacing: normal;
  text-align: left;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  margin-bottom: 0;
}
#screen-lock .lock-input::placeholder { color: var(--text3); font-weight: 700; }
#screen-lock .lock-input:focus {
  background: rgba(22, 34, 64, 0.96);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(29,159,255,0.15), 0 12px 28px rgba(0,0,0,0.20);
}
body.light #screen-lock .lock-input {
  background: rgba(255,255,255,0.86);
  border-color: rgba(44,95,138,0.22);
}

@keyframes shake {
  0%,100%{transform:translateX(0)} 20%{transform:translateX(-9px)} 40%{transform:translateX(9px)} 60%{transform:translateX(-6px)} 80%{transform:translateX(6px)}
}

.lock-error { font-size:0.8rem; color:var(--red-text); min-height:20px; margin-bottom:12px; text-align:left; }

.lock-remember {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
  margin-bottom: 18px;
  user-select: none;
}
.lock-remember input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent);
}
.lock-remember label {
  font-size: 0.85rem;
  color: var(--text2);
  cursor: pointer;
  transition: color 0.15s;
}
.lock-remember label:hover {
  color: var(--text);
}

.lock-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), #20d68a);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 16px;
  font-size: 0.95rem;
  font-weight: 900;
  font-family: var(--font);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.15s, filter 0.15s;
  box-shadow: 0 12px 26px rgba(29,159,255,0.22);
}
.lock-btn:hover { filter: brightness(1.08); box-shadow: 0 16px 34px rgba(32,214,138,0.24); }
.lock-btn:active { transform: scale(0.98); }

.lock-switch {
  margin-top: 16px;
  font-size: 0.86rem;
  color: var(--text2);
  text-align: center;
}
.lock-switch a {
  color: var(--accent2);
  font-weight: 900;
  text-decoration: none;
}
.lock-switch a:hover { color: var(--green-text); }

/* ===== TEMA TOGGLE ===== */
.theme-toggle {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  min-height: 38px;
  padding: 7px 12px;
  cursor: pointer;
  font-size: 0.8rem;
  font-family: var(--font);
  font-weight: 600;
  color: var(--text2);
  display: flex; align-items: center; gap: 6px;
  transition: all 0.15s;
  box-shadow: var(--shadow);
  white-space: nowrap;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent2); }
.theme-toggle-icon { line-height: 1; }
.theme-toggle-host {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.user-profile-header .theme-toggle {
  height: 58px;
  min-width: 76px;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  font-weight: 800;
}
.profile-header-actions,
.profile-theme-group,
.quiz-timer-group {
  display: flex;
  align-items: center;
  gap: 8px;
}
.profile-theme-group { flex: 0 0 auto; }
.theme-quiz-host .theme-toggle {
  min-width: 38px;
  height: 34px;
  min-height: 34px;
  padding: 0 9px;
  box-shadow: none;
}

.admin-course-access {
  display: grid;
  gap: 9px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg4);
}

.admin-course-access-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px 10px;
  max-height: 150px;
  overflow-y: auto;
}

.admin-course-access-list.is-disabled { opacity: 0.55; }
.admin-course-option { min-width: 0; }
.admin-course-option span { overflow-wrap: anywhere; }

.admin-section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 15px;
}

.admin-compact-action {
  width: auto;
  margin: 0;
  padding: 8px 12px;
  white-space: nowrap;
}

/* ===== APP WRAPPER ===== */
#app {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* ===== SCREENS ===== */
.screen { display: none; }
.screen.active { display: block; animation: fadeUp 0.2s ease; }

#screen-access.screen.active {
  min-height: calc(100vh - 40px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px 0;
}

.access-state-shell {
  width: 100%;
  max-width: 620px;
}

.access-state-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px;
  text-align: center;
}

.access-state-kicker {
  color: var(--accent2);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.access-state-icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(32, 214, 138, 0.14);
  border: 1px solid rgba(32, 214, 138, 0.35);
  color: var(--green-text);
  font-size: 1.55rem;
  font-weight: 900;
}

.access-state-icon.access-state-icon-alert {
  background: var(--accent-bg2);
  border-color: var(--border);
  color: var(--accent2);
}

.access-state-card h1 {
  color: var(--text);
  font-size: 1.55rem;
  margin-bottom: 10px;
}

.access-state-card p {
  color: var(--text2);
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0 auto 18px;
  max-width: 460px;
}

.access-state-status {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.access-state-status span {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text2);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 8px 10px;
}

.payment-instructions {
  margin: 0 auto 18px;
  max-width: 520px;
  padding: 16px;
  text-align: left;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.payment-instructions h2 {
  margin: 0 0 6px;
  color: var(--text);
  font-size: 1rem;
}
.payment-instructions > p {
  max-width: none;
  margin: 0 0 12px;
  font-size: 0.84rem;
}
.payment-instructions dl {
  margin: 0;
  display: grid;
  gap: 7px;
}
.payment-instructions dl > div {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 10px;
  padding-top: 7px;
  border-top: 1px solid var(--border);
}
.payment-instructions dt {
  color: var(--text3);
  font-size: 0.73rem;
  font-weight: 800;
  text-transform: uppercase;
}
.payment-instructions dd {
  margin: 0;
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.access-state-placeholder {
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg3);
  color: var(--text3);
  font-size: 0.86rem;
  padding: 18px;
  margin-top: 8px;
}

.receipt-upload-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.receipt-file-input {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text2);
  font-family: var(--font);
  font-size: 0.86rem;
  padding: 10px;
}

.receipt-upload-btn {
  width: 100%;
  margin: 0;
  padding: 10px 14px;
}

.receipt-upload-error {
  min-height: 18px;
  margin-top: 0;
  text-align: center;
}

.access-state-logout {
  width: auto;
  margin: 18px auto 0;
  padding: 9px 16px;
}

@keyframes fadeUp {
  from { opacity:0; transform:translateY(8px); }
  to   { opacity:1; transform:translateY(0); }
}

/* ===== HOME LAYOUT ===== */
#screen-home.screen.active {
  display: grid;
  grid-template-columns: 1fr 320px;
  grid-template-rows: auto 1fr;
  column-gap: 28px;
  min-height: 100vh;
  padding-top: 28px;
}

.home-header {
  grid-column: 1 / -1;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.home-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text) 30%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.home-title span { 
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.home-left { grid-column:1; display:flex; flex-direction:column; gap:14px; }

.user-profile-header {
  display: flex;
  align-items: center;
  gap: 8px;
}
.profile-mini-card,
.header-action-card {
  min-width: 76px;
  height: 58px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-family: var(--font);
  font-weight: 800;
  font-size: 0.82rem;
  box-shadow: var(--shadow);
  cursor: default;
  padding: 6px 10px;
}
.profile-mini-card {
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  min-width: 120px;
  max-width: 210px;
  box-shadow: none;
  background: transparent;
  border-color: transparent;
  color: var(--text);
  gap: 8px;
  padding: 6px 4px;
}
.profile-mini-card strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.header-profile-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  flex: 0 0 34px;
  border: 1px solid var(--border);
  background: var(--bg3);
}
.header-profile-avatar-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent2);
  font-size: 0.82rem;
  font-weight: 900;
}
.header-action-card {
  cursor: pointer;
  transition: transform 0.14s, border-color 0.14s, background 0.14s;
}
.header-action-card:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  color: var(--accent2);
}
.header-action-card#admin-panel-btn {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.header-action-card.danger {
  background: var(--red-bg);
  border-color: rgba(255, 77, 106, 0.18);
  color: var(--red-text);
}

/* RIGHT PANEL */
.home-right {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* ===== STATS PANEL ===== */
.stats-panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  position: sticky;
  top: 24px;
}

.stats-panel-header {
  padding: 16px 20px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.stats-panel-heading {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent2);
  display: flex; align-items: center; gap: 8px;
}
.stats-panel-reset {
  background: none; border: none; cursor: pointer;
  font-size: 0.7rem; color: var(--text3);
  padding: 3px 8px; border-radius: 6px;
  transition: color 0.15s, background 0.15s;
  font-family: var(--font);
}
.stats-panel-reset:hover { color: var(--red-text); background: var(--red-bg); }

.stats-panel-body { padding: 16px 20px; display: flex; flex-direction: column; gap: 14px; }

.stats-empty { text-align:center; color:var(--text3); font-size:0.84rem; padding:28px 0; }

.home-description,
.home-announcement {
  color: var(--text2);
  font-size: 0.9rem;
  margin-top: 6px;
  line-height: 1.5;
}
.home-announcement {
  background: #eaf6ff;
  color: #08233f;
  border: 1px solid #8fd0ff;
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-weight: 700;
  box-shadow: 0 6px 18px rgba(0, 119, 204, 0.12);
}
body:not(.light) .home-announcement {
  background: #dff2ff;
  color: #051a30;
  border-color: #5bc3ff;
}
.announcement-img {
  width: 100%;
  max-height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
}
.question-explanation {
  width: 100%;
  max-width: 760px;
  margin: 0 auto 16px;
}
.explanation-approved,
.explanation-suggest {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
}
.explanation-title {
  color: var(--accent2);
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.explanation-meta {
  color: var(--text3);
  font-size: 0.74rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.explanation-text {
  color: var(--text2);
  font-size: 0.9rem;
  line-height: 1.6;
  white-space: pre-wrap;
}
.explanation-suggest summary {
  cursor: pointer;
  color: var(--text2);
  font-weight: 700;
}
.explanation-suggest textarea {
  margin-top: 12px;
  height: 90px;
  text-align: left;
  letter-spacing: normal;
  font-family: var(--font);
}
.admin-check {
  color: var(--text2);
  display: flex;
  gap: 8px;
  align-items: center;
}
.admin-explanation-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 12px;
}
.admin-explanation-meta {
  color: var(--accent2);
  font-size: 0.75rem;
  font-weight: 800;
  margin-bottom: 6px;
}
.admin-explanation-question {
  color: var(--text2);
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 10px;
}
.admin-exp-actions {
  display: flex;
  gap: 8px;
}
.admin-exp-actions button {
  width: auto;
  margin: 0;
  padding: 8px 14px;
}
.admin-filter-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 190px));
  gap: 8px;
  align-items: center;
  margin-bottom: 15px;
}
.admin-filter-bar-short {
  grid-template-columns: minmax(150px, 190px);
}
#screen-admin .admin-filter-bar .lock-input {
  width: 100%;
  min-width: 0;
  min-height: 38px;
  height: 38px;
  margin: 0;
  padding: 7px 10px;
  border-width: 1px;
  border-radius: 7px;
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0;
  text-align: left;
}
#screen-admin .admin-explanation-item {
  max-width: 820px;
  border-radius: 7px;
  padding: 12px;
}
#screen-admin .admin-exp-text {
  min-height: 90px;
  height: 90px !important;
  margin: 0 0 10px;
  padding: 10px 12px;
  border-width: 1px;
  border-radius: 7px;
  font-size: 0.84rem;
}

#screen-profile .admin-container {
  max-width: 1100px !important;
}
#screen-profile .admin-card {
  border-radius: var(--radius);
  padding: 24px;
}
#screen-profile #profile-preview {
  border-radius: 12px !important;
  width: 132px !important;
  height: 132px !important;
}
#screen-profile .admin-form-group {
  align-items: stretch !important;
  text-align: left !important;
}
.crop-modal-card {
  max-width: 380px;
}
.crop-workspace {
  display: flex;
  justify-content: center;
  margin: 12px 0 16px;
}
#profile-crop-canvas {
  width: 280px;
  height: 280px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg3);
  box-shadow: var(--shadow);
}
.crop-controls {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}
.crop-controls label {
  display: grid;
  gap: 6px;
  color: var(--text2);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}
.crop-controls input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
.admin-user-modal-card {
  max-width: 440px;
}
.admin-field-label {
  color: var(--text2);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: -8px;
}

.sp-overall {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 8px;
  text-align: center;
}
.sp-stat { background: var(--bg3); border-radius: 10px; padding: 10px 6px; }
.sp-stat .val { font-size: 1.25rem; font-weight: 800; color: var(--accent2); font-variant-numeric: tabular-nums; }
.sp-stat .lbl { font-size: 0.62rem; color: var(--text3); margin-top: 2px; text-transform: uppercase; letter-spacing: 0.06em; }

.sp-section-title {
  font-size: 0.65rem; font-weight: 800; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text3);
  padding-bottom: 6px; border-bottom: 1px solid var(--border);
}

.sp-quiz-row { display: flex; align-items: center; gap: 8px; padding: 3px 0; }
.sp-quiz-name { font-size: 0.72rem; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 0.03em; flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sp-bar-wrap { flex: 1.4; height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; }
.sp-bar-fill { height: 100%; border-radius: 2px; transition: width 0.6s ease; }
.sp-pct { font-size: 0.7rem; font-weight: 800; width: 32px; text-align: right; font-family: var(--font-mono); }

.sp-history-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px;
  background: var(--bg3); border-radius: 9px;
  gap: 8px;
}
.sp-h-info { display:flex; flex-direction:column; gap:2px; flex:1; min-width:0; }
.sp-h-name { font-size:0.72rem; font-weight:700; color:var(--text); text-transform:uppercase; letter-spacing:0.03em; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.sp-h-date { font-size:0.62rem; color:var(--text3); }
.sp-h-pct  { font-size:1.05rem; font-weight:800; flex-shrink:0; font-family:var(--font-mono); }

.sp-full-btn {
  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text3); font-size: 0.75rem; font-family: var(--font); font-weight: 600;
  padding: 8px; width: 100%; cursor: pointer; transition: all 0.15s;
  letter-spacing: 0.04em;
}
.sp-full-btn:hover { border-color: var(--accent); color: var(--accent2); }

/* MOBILE STATS */
@media (max-width: 860px) {
  #screen-home.screen.active {
    grid-template-columns: 1fr;
    padding-top: 20px;
  }
  .home-right { grid-column: 1; grid-row: auto; margin-top: 20px; }
  .stats-panel { position: static; }
  .admin-content-grid {
    grid-template-columns: 1fr !important;
  }
}

/* ===== SUMMARY STATS CARDS ===== */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 6px;
}

.summary-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  overflow: hidden;
  border-left-width: 3px;
  border-left-style: solid;
  transition: transform 0.15s, box-shadow 0.15s;
  animation: fadeUp 0.3s ease;
}
.summary-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.summary-card-purple { border-left-color: #a855f7; }
.summary-card-green  { border-left-color: var(--green); }
.summary-card-amber  { border-left-color: var(--amber); }

.summary-card-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg3);
}
.summary-card-purple .summary-card-icon { background: rgba(168, 85, 247, 0.12); }
.summary-card-green  .summary-card-icon { background: var(--green-bg); }
.summary-card-amber  .summary-card-icon { background: var(--amber-bg); }

.summary-card-body { display: flex; flex-direction: column; gap: 2px; min-width: 0; }

.summary-card-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  white-space: nowrap;
}

.summary-card-value {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.summary-card-purple .summary-card-value { color: #c084fc; }
.summary-card-green  .summary-card-value { color: var(--green-text); }
.summary-card-amber  .summary-card-value { color: var(--amber-text); }

@media (max-width: 640px) {
  .summary-cards { grid-template-columns: 1fr; }
}

/* ===== DERS FİLTRE ===== */

.ders-filter {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  width: 100%;
}

.ders-filter .chip {
  padding: 8px 6px;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  line-height: 1.15;
  min-height: 36px;
  min-width: 0;
}

.chip {
  background: var(--card-bg);
  color: var(--text2);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 12px 10px;
  font-size: 0.8rem;
  font-weight: 700;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
}
.chip:hover { 
  border-color: var(--accent); 
  color: var(--accent2); 
  background: var(--accent-bg2);
  box-shadow: 0 0 10px var(--glow);
}
.chip-active { 
  background: var(--accent-bg); 
  color: var(--accent2); 
  border-color: var(--accent); 
  box-shadow: 0 0 12px var(--glow);
}

/* ===== QUIZ LIST ===== */
#quiz-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.quiz-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 96px;
  transition: border-color 0.15s, background 0.15s, transform 0.15s, box-shadow 0.15s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.quiz-item::before {
  content: '';
  position: absolute; left:0; top:0; bottom:0; width:3px;
  background: var(--accent); opacity:0; transition: opacity 0.15s;
  border-radius: 3px 0 0 3px;
}
.quiz-item:hover { 
  border-color: var(--accent); 
  background: var(--accent-bg2); 
  transform: translateY(-3px); 
  box-shadow: 0 8px 24px var(--glow); 
}
.quiz-item:hover::before { opacity: 1; }

.quiz-item-top { display:flex; justify-content:space-between; align-items:flex-start; gap:8px; flex:1; }

.quiz-name {
  font-size: 0.86rem; font-weight: 800;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--text); line-height: 1.3;
}
.quiz-count { font-size: 0.72rem; color: var(--text3); flex-shrink:0; font-family: var(--font-mono); white-space: nowrap; }

/* Old single-bar references kept for compatibility */
.quiz-prog-row { display:flex; align-items:center; justify-content:space-between; margin-bottom: 4px; }
.quiz-prog-label-old { font-size: 0.62rem; color: var(--text3); text-transform:uppercase; letter-spacing:0.06em; }
.quiz-prog-pct { font-size: 0.72rem; font-weight:800; font-family: var(--font-mono); }
.quiz-prog-bar { height:3px; background: var(--border); border-radius:2px; overflow:hidden; }
.quiz-prog-fill { height:100%; border-radius:2px; transition: width 0.6s ease; }

/* === NEW SEGMENTED QUIZ PROGRESS BAR === */
.quiz-prog-wrap {
  margin-top: 4px;
  margin-bottom: 4px;
}
.quiz-prog-bar-container {
  position: relative;
  display: flex;
  height: 18px;
  border-radius: 6px;
  overflow: hidden;
  background: var(--border);
}
.quiz-prog-seg {
  height: 100%;
  transition: width 0.6s ease;
  flex-shrink: 0;
}
.quiz-prog-correct {
  background: linear-gradient(90deg, #1aad6b, var(--green));
}
.quiz-prog-wrong {
  background: linear-gradient(90deg, #cc2244, var(--red));
}
.quiz-prog-blank {
  background: var(--border);
}
.quiz-prog-label {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.65rem;
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  text-shadow: 0 1px 3px rgba(0,0,0,0.7);
  pointer-events: none;
  white-space: nowrap;
}

.quiz-item-actions { display:flex; gap:6px; margin-top: 2px; }


.quiz-action-btn {
  flex:1;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text2); font-size: 0.72rem; font-weight: 700;
  font-family: var(--font); letter-spacing: 0.04em; text-transform: uppercase;
  padding: 6px 8px; cursor: pointer; transition: all 0.15s; text-align: center;
}
.quiz-action-btn:hover { border-color: var(--accent); color: var(--accent2); background: var(--accent-bg2); }
.quiz-action-btn.ezber { background: var(--accent-bg2); border-color: var(--accent-bg); color: var(--accent2); }
.quiz-action-btn.ezber:hover { background: var(--accent-bg); }

/* Önemli sorular kartı */
.important-item {
  grid-column: 1/-1; flex-direction: row; align-items: center;
  min-height: 64px; border-color: var(--red-bg) !important;
}
.important-item::before { background: var(--red) !important; opacity: 1 !important; }
.important-item .quiz-name { color: var(--red-text) !important; }

/* ===== ARAMA ===== */
.search-tools-row {
  display: grid;
  grid-template-columns: auto minmax(240px, 1fr) auto;
  gap: 10px;
  align-items: center;
}
.my-questions-container {
  position: relative;
  display: inline-block;
  margin: 0;
}
#my-questions-btn {
  width: auto;
  margin: 0;
  padding: 11px 16px;
  font-size: 0.82rem;
  font-weight: 800;
  white-space: nowrap;
}
.search-box { position:relative; }
.search-box input {
  width:100%; background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text);
  padding: 12px 42px 12px 16px; font-size: 0.92rem; font-family: var(--font);
  outline:none; transition: border-color 0.15s, box-shadow 0.15s;
}
.search-box input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-bg); }
.search-box input::placeholder { color: var(--text3); }
.search-clear { position:absolute; right:12px; top:50%; transform:translateY(-50%); background:none; border:none; color:var(--text3); cursor:pointer; font-size:0.9rem; }
.search-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:10px; color:var(--text3); font-size:0.82rem; }
.search-item { background:var(--bg2); border-radius:var(--radius-sm); padding:12px 14px; margin-bottom:8px; font-size:0.86rem; color:var(--text2); line-height:1.5; cursor:pointer; border:1px solid transparent; transition:border-color 0.15s; }
.search-item:hover { border-color: var(--border); }
.search-item.expanded { border-color: var(--accent); }
.search-ders { display:block; font-size:0.68rem; font-weight:800; color:var(--accent2); letter-spacing:0.06em; margin-bottom:4px; text-transform:uppercase; }
.search-q-text { display:block; color:var(--text2); }
.search-answer { max-height:0; overflow:hidden; transition:max-height 0.3s ease, margin-top 0.3s; }
.search-item.expanded .search-answer { max-height:500px; margin-top:10px; }
.search-opt { padding:6px 10px; border-radius:6px; margin-bottom:3px; font-size:0.82rem; color:var(--text3); background:var(--bg3); }
.search-opt:last-child { margin-bottom:0; }
.search-opt-correct { color:var(--green-text); background:var(--green-bg); font-weight:600; }

/* ===== HOME BOTTOM ===== */
.home-bottom { display:flex; gap:10px; margin-top:4px; }
.home-bottom .btn-secondary { flex:1; }

/* ===== MODAL ===== */
.modal-overlay {
  display:none; position:fixed; inset:0;
  background:var(--overlay); z-index:1000;
  align-items:center; justify-content:center; padding:20px;
  backdrop-filter: blur(4px);
}
.modal-overlay.active { display:flex; }

.modal-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 20px;
  padding: 32px 28px;
  width: 100%; max-width: 440px;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.2s ease;
}

.modal-quiz-name { font-size:1.1rem; font-weight:800; letter-spacing:0.05em; color:var(--accent2); margin-bottom:6px; }
.modal-quiz-sub { font-size:0.84rem; color:var(--text3); margin-bottom:20px; }
.modal-question { color:var(--text); font-size:0.95rem; margin-bottom:28px; line-height:1.55; }
.modal-buttons { display:flex; gap:10px; }
.modal-buttons-col { flex-direction:column; }

/* ===== START MODAL FILTERS ===== */
.start-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  justify-content: center;
}
.filter-chip {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 14px;
  font-size: 0.78rem;
  font-weight: 700;
  font-family: var(--font);
  color: var(--text2);
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.04em;
  user-select: none;
}
.filter-chip:hover { border-color: var(--accent); color: var(--accent2); }
.filter-chip.active { background: var(--accent-bg); color: var(--accent2); border-color: var(--accent); }
.filter-chip.red.active { background: var(--red-bg); color: var(--red-text); border-color: var(--red); }

/* ===== BUTTONS ===== */
.btn-primary {
  background: var(--accent); color:#fff; border:none;
  border-radius: var(--radius); padding:13px; font-size:0.92rem;
  font-weight:700; font-family:var(--font);
  cursor:pointer; transition:background 0.15s, box-shadow 0.15s; width:100%;
  box-shadow: 0 4px 16px rgba(29,159,255,0.25);
}
.btn-primary:hover { background:var(--accent2); box-shadow: 0 6px 20px rgba(29,159,255,0.4); }
.btn-primary:disabled { opacity:0.35; cursor:default; box-shadow:none; }

.btn-secondary {
  background: var(--bg2); color:var(--text2);
  border: 1px solid var(--border);
  border-radius: var(--radius); padding:13px; font-size:0.92rem;
  font-family:var(--font); cursor:pointer; transition:all 0.15s; width:100%;
}
.btn-secondary:hover { background:var(--bg3); border-color:var(--border); }

.btn-warning { background:var(--amber-bg); color:var(--amber-text); border:none; border-radius:var(--radius); padding:13px; font-size:0.92rem; font-weight:600; font-family:var(--font); cursor:pointer; width:100%; transition:opacity 0.15s; }
.btn-warning:hover { opacity:0.85; }
.btn-danger  { background:var(--red-bg); color:var(--red-text); border:none; border-radius:var(--radius); padding:13px; font-size:0.92rem; font-weight:600; font-family:var(--font); cursor:pointer; width:100%; transition:opacity 0.15s; }
.btn-danger:hover { opacity:0.85; }
.btn-danger-sm { background:var(--red-bg); color:var(--red-text); border:none; border-radius:var(--radius-sm); padding:6px 12px; cursor:pointer; font-size:0.78rem; font-family:var(--font); }
.btn-back { background:none; border:none; color:var(--accent); cursor:pointer; font-size:0.88rem; padding:4px 0; font-family:var(--font); }

/* ===== SAVED ===== */
.saved-list { display:flex; flex-direction:column; gap:8px; margin-top:14px; }
.saved-item { display:flex; justify-content:space-between; align-items:center; background:var(--bg3); border-radius:var(--radius-sm); padding:12px 14px; gap:12px; }
.saved-info { display:flex; flex-direction:column; gap:3px; flex:1; min-width:0; }
.saved-name { font-size:0.8rem; font-weight:700; color:var(--text); }
.saved-meta { font-size:0.72rem; color:var(--text3); }
.saved-actions { display:flex; gap:6px; flex-shrink:0; }

/* ===== QUIZ SCREEN ===== */
#screen-quiz { width: 100%; max-width: 760px; margin: 0 auto; padding-top: 20px; }

.quiz-header {
  display:flex; justify-content:space-between; align-items:center;
  margin-bottom:14px;
}
.qh-left,.qh-right { display:flex; gap:6px; }
.qh-center { display:flex; gap:10px; align-items:center; justify-content:center; font-size:0.88rem; color:var(--text2); }

.quiz-timer { font-size:0.84rem; color:var(--text3); font-family:var(--font-mono); font-variant-numeric:tabular-nums; }

.auto-btn {
  background:none; border:1px solid var(--border); border-radius:var(--radius-sm);
  color:var(--text3); font-size:0.95rem; width:34px; height:34px;
  cursor:pointer; transition:all 0.15s; display:flex; align-items:center; justify-content:center; padding:0;
}
.auto-btn:hover { border-color:var(--accent); color:var(--accent2); }
.auto-on { background:var(--accent-bg); border-color:var(--accent); color:var(--accent2); }
.end-btn { color:var(--red-text) !important; }
.end-btn:hover { border-color:var(--red) !important; }
.important-btn { font-size:0.9rem; }
.important-active { background:var(--red-bg)!important; border-color:var(--red)!important; color:var(--red-text)!important; }
.flag-btn { font-size:0.9rem; }
.flag-active { background:var(--amber-bg)!important; border-color:var(--amber)!important; color:var(--amber-text)!important; }
.q-flagged { border-color:var(--amber)!important; color:var(--amber-text)!important; }

.progress-bar { height:3px; background:var(--border); border-radius:2px; margin-bottom:20px; overflow:hidden; }
.progress-fill { height:100%; background:var(--accent); border-radius:2px; transition:width 0.35s ease; }

.question-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 18px;
  padding: 28px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
  height: 480px;
  display: flex;
  flex-direction: column;
}

#question-text { 
  font-size: 1rem; 
  line-height: 1.6; 
  margin-bottom: 22px; 
  color: var(--text); 
  font-weight: 500; 
  height: 110px;
  overflow-y: auto;
  display: flex;
  align-items: center;
}

#options-container {
  margin-top: auto;
}

.option-btn {
  display:block; width:100%;
  background:var(--bg3); color:var(--text);
  border:1px solid var(--border); border-radius:var(--radius);
  padding:13px 16px; margin-bottom:9px; text-align:left;
  cursor:pointer; font-size:0.91rem; font-family:var(--font);
  transition:all 0.15s; line-height:1.5;
}
.option-btn:last-child { margin-bottom:0; }
.option-btn:hover:not(:disabled) { 
  border-color: var(--accent); 
  background: var(--accent-bg2); 
  color: var(--accent2); 
  transform: translateX(4px);
  box-shadow: 0 0 10px var(--glow);
}
.option-btn.correct { 
  border-color: var(--green); 
  background: var(--green-bg); 
  color: var(--green-text); 
  box-shadow: 0 0 15px rgba(32, 214, 138, 0.25);
}
.option-btn.wrong   { 
  border-color: var(--red);   
  background: var(--red-bg);   
  color: var(--red-text); 
  box-shadow: 0 0 15px rgba(255, 77, 106, 0.25);
}

/* ===== NAV ===== */
.nav-buttons { display:flex; gap:10px; margin-bottom:14px; }
.btn-prev { flex:0 0 48px; padding:12px 0; font-size:1rem; }
.btn-next { flex:1; }

.q-nav { display:grid; grid-template-columns:repeat(15,1fr); gap:4px; margin-top:14px; }
.q-num {
  display:flex; align-items:center; justify-content:center;
  width:100%; aspect-ratio:1; border-radius:7px;
  border:1px solid var(--border); background:var(--bg2);
  color:var(--text2); font-size:0.76rem; cursor:pointer; transition:all 0.1s;
  font-family:var(--font-mono);
}
.q-num:hover { border-color:var(--accent); color:var(--accent2); }
.q-current { border-color:var(--accent)!important; color:var(--accent2)!important; background:var(--accent-bg)!important; }
.q-correct { background:var(--green-bg)!important; border-color:var(--green)!important; color:var(--green-text)!important; }
.q-wrong   { background:var(--red-bg)!important;   border-color:var(--red)!important;   color:var(--red-text)!important; }

/* ===== RESULT ===== */
#screen-result { width: 100%; max-width: 760px; margin: 0 auto; padding-top: 24px; }
h2 { font-size:1.35rem; font-weight:800; text-align:center; margin-bottom:18px; color:var(--text); }

.result-tabs { display:flex; gap:4px; background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); padding:4px; margin-bottom:20px; }
.result-tab { flex:1; background:none; border:none; color:var(--text3); font-size:0.86rem; font-weight:700; font-family:var(--font); padding:9px; border-radius:var(--radius-sm); cursor:pointer; transition:all 0.15s; }
.result-tab.active { background:var(--accent); color:#fff; }
.result-tab:hover:not(.active) { color:var(--text); }

.result-score { text-align:center; font-size:4rem; font-weight:800; color:var(--accent2); margin:16px 0 6px; font-family:var(--font-mono); }
.result-label { text-align:center; color:var(--text3); margin-bottom:22px; font-size:0.88rem; }

.result-grid {
  background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius);
  padding:20px; margin-bottom:22px;
  display:grid; grid-template-columns:1fr 1fr; gap:16px; text-align:center;
}
.result-stat .value { font-size:1.5rem; font-weight:800; font-family:var(--font-mono); }
.result-stat .label { font-size:0.72rem; color:var(--text2); margin-top:3px; text-transform:uppercase; letter-spacing:0.06em; }
.green { color:var(--green)!important; }
.red   { color:var(--red)!important; }
.result-buttons { display:flex; gap:10px; }

.btn-hatalar-result {
  display:block; width:100%; margin-top:8px;
  background:var(--bg2); color:var(--red-text);
  border:1px solid var(--red-bg); border-radius:var(--radius);
  padding:11px; font-size:0.88rem; font-weight:700; font-family:var(--font);
  cursor:pointer; transition:background 0.15s;
}
.btn-hatalar-result:hover { background:var(--red-bg); }

/* ===== STATS PAGE ===== */
#screen-stats { width: 100%; max-width: 760px; margin: 0 auto; padding-top: 24px; }
.screen-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:24px; }
h1 { font-size:1.6rem; font-weight:800; color:var(--accent2); letter-spacing:-0.01em; }

.overall-stats { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); padding:20px; margin-bottom:20px; display:grid; grid-template-columns:repeat(3,1fr); gap:12px; text-align:center; }
.stat-item .value { font-size:1.4rem; font-weight:800; color:var(--accent2); font-family:var(--font-mono); }
.stat-item .label { font-size:0.72rem; color:var(--text2); margin-top:3px; }

.history-title { font-size:0.7rem; font-weight:800; color:var(--text3); margin-bottom:8px; text-transform:uppercase; letter-spacing:0.08em; }
.history-list { display:flex; flex-direction:column; gap:7px; }
.history-item { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius-sm); padding:12px 16px; display:flex; flex-direction:column; gap:6px; }
.history-row1 { display:flex; justify-content:space-between; align-items:center; gap:8px; }
.history-row2 { display:flex; gap:12px; flex-wrap:wrap; }
.history-item .date { font-size:0.72rem; color:var(--text3); }
.history-item .pct  { font-weight:800; font-size:1.2rem; flex-shrink:0; font-family:var(--font-mono); }
.h-quiz-name { font-size:0.8rem; font-weight:800; letter-spacing:0.04em; color:var(--text); }
.incomplete-label { font-size:0.68rem; font-weight:800; color:var(--red); }
.history-incomplete { border-left:3px solid var(--amber); }
.h-correct { font-size:0.75rem; color:var(--green); }
.h-wrong   { font-size:0.75rem; color:var(--red); }
.h-blank   { font-size:0.75rem; color:var(--text3); }
.h-dur     { font-size:0.75rem; color:var(--text3); margin-left:auto; }

.report-list { display:flex; flex-direction:column; gap:7px; }
.report-item { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius-sm); padding:14px 16px; }
.report-name { font-size:0.72rem; font-weight:800; letter-spacing:0.07em; color:var(--accent2); margin-bottom:6px; }
.report-stats { display:flex; gap:14px; font-size:0.78rem; color:var(--text3); margin-bottom:8px; }
.report-stats b { color:var(--text); }
.report-bar { height:4px; background:var(--border); border-radius:2px; overflow:hidden; }
.report-fill { height:100%; background:linear-gradient(90deg,var(--accent),var(--accent2)); border-radius:2px; }
.ders-section-title { font-size:0.72rem; font-weight:800; letter-spacing:0.1em; color:var(--accent); text-transform:uppercase; margin:20px 0 10px; padding-bottom:6px; border-bottom:1px solid var(--border); }

.no-stats { text-align:center; color:var(--text3); padding:48px 0; font-size:0.9rem; }
.no-errors-msg { text-align:center; color:var(--green); font-size:0.86rem; padding:14px 0; }

.incele-btn { margin-left:auto; background:none; border:1px solid var(--border); border-radius:6px; color:var(--text3); font-size:0.68rem; padding:3px 10px; cursor:pointer; transition:all 0.15s; font-family:var(--font); }
.incele-btn:hover { border-color:var(--accent); color:var(--accent2); }
.hatalar-btn { color:var(--red-text)!important; border-color:var(--red-bg)!important; }
.hatalar-btn:hover { background:var(--red-bg)!important; }
.badge-incomplete { font-size:0.66rem; background:var(--amber-bg); color:var(--amber-text); border-radius:4px; padding:1px 6px; font-weight:600; }

/* ===== REVIEW ===== */
#screen-review { width: 100%; max-width: 760px; margin: 0 auto; padding-top: 20px; }
#review-content { display:flex; flex-direction:column; gap:12px; margin-top:14px; }
.review-list { display:flex; flex-direction:column; gap:14px; }
.review-card { 
  background: var(--card-bg); 
  border: 1px solid var(--card-border); 
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius); 
  padding: 18px; 
}
.review-qhead { display:flex; align-items:center; gap:8px; margin-bottom:10px; }
.review-qnum { font-size:0.72rem; color:var(--text3); font-family:var(--font-mono); }
.ri-correct { color:var(--green); } .ri-wrong { color:var(--red); } .ri-blank { color:var(--text3); }
.review-qtext { font-size:0.92rem; line-height:1.65; color:var(--text); margin-bottom:14px; font-weight:500; }
.review-option { display:flex; align-items:flex-start; gap:10px; padding:9px 12px; border-radius:var(--radius-sm); margin-bottom:5px; font-size:0.85rem; border:1px solid transparent; }
.review-option:last-child { margin-bottom:0; }
.opt-letter { font-weight:800; flex-shrink:0; width:16px; font-family:var(--font-mono); }
.review-correct { background:var(--green-bg); border-color:var(--green); color:var(--green-text); }
.review-wrong   { background:var(--red-bg);   border-color:var(--red);   color:var(--red-text); }
.review-neutral { background:var(--bg3); color:var(--text3); }

/* ===== TOAST ===== */
#toast { position:fixed; bottom:28px; left:50%; transform:translateX(-50%); background:var(--bg2); color:var(--text); border:1px solid var(--border); border-radius:var(--radius-sm); padding:11px 22px; font-size:0.86rem; white-space:nowrap; opacity:0; pointer-events:none; transition:opacity 0.2s; z-index:9998; box-shadow:var(--shadow); font-family:var(--font); }
#toast.toast-show { opacity:1; }

#modal-confirm .modal-card { border-color:var(--red-bg); }

/* ===== TABLET LANDSCAPE (iPad yatay) ===== */
@media (min-width: 768px) and (max-width: 1100px) {
  #app { padding: 0 20px 32px; }
  #screen-home.screen.active {
    grid-template-columns: 1fr 280px;
    column-gap: 20px;
    padding-top: 20px;
  }
  .home-header { margin-bottom: 18px; }
  #quiz-list { grid-template-columns: repeat(2,1fr); gap: 9px; }
  .quiz-item { min-height: 88px; padding: 14px 15px; }
  .quiz-name { font-size: 0.8rem; }
  .stats-panel { position: sticky; top: 16px; }

  #screen-quiz { max-width: 100%; padding: 16px 4px 0; }
  .question-card { padding: 22px 22px 18px; height: auto; min-height: auto; }
  #question-text { font-size: 0.96rem; height: auto; min-height: auto; }
  .option-btn { font-size: 0.88rem; padding: 12px 14px; }
  .q-nav { grid-template-columns: repeat(15,1fr); gap: 4px; }
}

/* ===== MOBILE ===== */
@media (max-width: 767px) {
  #app { padding: 0 14px 32px; }
  #screen-lock { padding: 14px; }
  .lock-card { padding: 24px; max-width: 100%; }
  .lock-logo { width: 50px; height: 50px; border-radius: 14px; }
  .lock-title { font-size: 1.32rem; }
  .lock-sub { margin-bottom: 18px; }
  #screen-home.screen.active { grid-template-columns: 1fr; padding-top: 16px; }
  .home-header {
    align-items: flex-start !important;
  }
  .user-profile-header {
    width: 100%;
    flex-wrap: wrap;
  }
  .profile-mini-card {
    flex: 1 1 140px;
  }
  .user-profile-header .theme-toggle {
    width: 58px;
    min-width: 58px;
  }
  .user-profile-header .theme-toggle-label,
  .theme-quiz-host .theme-toggle-label {
    display: none;
  }
  .profile-header-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  .quiz-header {
    gap: 8px;
  }
  .qh-center {
    gap: 6px;
    min-width: 96px;
  }
  .quiz-timer-group {
    gap: 5px;
  }
  .home-right { grid-column: 1; order: 10; margin-top: 16px; }
  #quiz-list { grid-template-columns: 1fr 1fr; gap: 8px; }
  .quiz-item { min-height: 80px; padding: 12px 13px; }
  .quiz-name { font-size: 0.78rem; }
  .ders-filter { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .ders-filter .chip { padding: 9px 7px; font-size: 0.72rem; min-height: 38px; }
  .chip { padding: 10px 8px; font-size: 0.74rem; min-height: 40px; }
  .stats-panel { position: static; }
  #screen-quiz { padding-top: 14px; }
  .question-card { padding: 18px 16px; height: auto; min-height: auto; }
  #question-text { font-size: 0.92rem; height: auto; min-height: auto; }
  .option-btn { font-size: 0.86rem; padding: 11px 14px; }
  .q-nav { grid-template-columns: repeat(10,1fr); }
  #screen-admin .admin-card {
    padding: 16px;
  }
  #screen-admin .admin-header {
    align-items: flex-start;
    gap: 12px;
  }
  #screen-admin .admin-workspace {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  #screen-admin .admin-tabs {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    padding: 10px;
  }
  #screen-admin .admin-nav-group {
    min-width: 0;
  }
  #screen-admin .admin-nav-label {
    padding-left: 4px;
  }
  #screen-admin .admin-tabs .chip {
    font-size: 0.7rem;
    white-space: normal;
  }
  #screen-admin .admin-settings-grid {
    grid-template-columns: 1fr;
  }
  #screen-admin .admin-settings-panel {
    padding: 16px;
  }
  .admin-user-detail-layout {
    grid-template-columns: 1fr !important;
  }
  #modal-admin-user {
    align-items: flex-start;
    overflow-y: auto;
    padding: 56px 12px 20px;
  }
  #modal-admin-user .admin-user-modal-card {
    width: 100% !important;
    margin: 0 auto;
    padding: 22px 18px;
  }
  .admin-course-access-list {
    grid-template-columns: 1fr;
  }
  .admin-section-heading {
    align-items: flex-start;
  }
  #screen-admin .admin-filter-bar,
  #screen-admin .admin-filter-bar-short {
    grid-template-columns: 1fr;
  }
  .payment-instructions dl > div {
    grid-template-columns: 1fr;
    gap: 3px;
  }
  #screen-admin .q-editor-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  #screen-admin .q-list-panel {
    border-right: 0;
    border-bottom: 1px solid var(--border);
    padding-right: 0;
    padding-bottom: 16px;
    max-height: none;
    overflow-y: visible;
  }
  #screen-admin .q-edit-panel {
    padding-left: 0;
  }
  #screen-admin .q-edit-panel .lock-input,
  #screen-admin .q-list-panel .lock-input {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
}

/* ===== FOOTER & SIGNATURE ===== */
.app-footer {
  margin-top: auto;
  padding: 24px 0 10px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.78rem;
  color: var(--text3);
  width: 100%;
}

.coder-signature {
  font-weight: 800;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 12px var(--glow);
}

.lock-footer {
  margin-top: 22px;
  font-size: 0.7rem;
  color: var(--text3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
}

/* ===== SEARCH OPTIONS ===== */
.search-options-info {
  font-size: 0.74rem;
  color: var(--text3);
  margin-top: 10px;
  padding: 0 4px;
  line-height: 1.4;
  font-weight: 500;
}

.search-options {
  display: flex;
  gap: 10px;
  margin-top: 0;
  padding: 0;
  align-items: center;
}

.search-opt-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text2);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

@media (max-width: 767px) {
  .search-tools-row {
    grid-template-columns: 1fr;
  }
  #my-questions-btn {
    width: 100%;
  }
  .search-options {
    justify-content: stretch;
  }
  .search-opt-label {
    flex: 1;
    justify-content: center;
  }
}

.search-opt-label:hover {
  border-color: var(--accent);
  color: var(--accent2);
  transform: translateY(-1px);
}

.search-opt-label input[type="checkbox"] {
  display: none;
}

.search-opt-label:has(input:checked) {
  background: var(--accent-bg);
  border-color: var(--accent);
  color: var(--accent2);
  box-shadow: 0 0 10px var(--glow);
}

/* ===== AÇILIŞ (SPLASH) EKRANI ===== */
#screen-splash {
  position: fixed; inset: 0;
  background: var(--bg);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  transition: opacity 0.6s ease;
}

.splash-content {
  text-align: center;
  max-width: 400px;
  width: 100%;
}

.splash-logo-container {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 24px;
}

.splash-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 28px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 2;
  border: 1px solid var(--card-border);
}

.splash-glow {
  position: absolute; inset: -10px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  opacity: 0.6;
  filter: blur(15px);
  z-index: 1;
  animation: logoPulse 2.5s ease-in-out infinite;
}

@keyframes logoPulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.15); opacity: 0.85; }
}

.splash-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  color: var(--text);
}
.splash-title span {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.splash-subtitle {
  font-size: 0.9rem;
  color: var(--text2);
  margin-bottom: 36px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.splash-loader-bar {
  width: 100%;
  height: 6px;
  background: var(--bg3);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}

.splash-loader-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 3px;
  animation: loadProgress 2.5s cubic-bezier(0.1, 0.8, 0.25, 1) forwards;
}

@keyframes loadProgress {
  0% { width: 0%; }
  30% { width: 40%; }
  60% { width: 70%; }
  100% { width: 100%; }
}

.splash-status {
  font-size: 0.76rem;
  color: var(--text3);
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* ===== ADMIN PANEL STYLES ===== */
.admin-container {
  max-width: 1380px;
  margin: 20px auto;
  padding: 0 10px;
}
.admin-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-radius: 12px;
  padding: 24px 26px;
  box-shadow: 0 18px 48px rgba(15, 40, 80, 0.14);
}
.admin-payment-alert {
  display: none;
  margin-bottom: 12px;
  padding: 10px 14px;
  color: var(--accent2);
  background: var(--accent-bg2);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  font-size: 0.84rem;
  font-weight: 700;
}
.admin-payment-alert.is-visible {
  display: block;
}
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
}
.admin-tabs {
  position: sticky;
  top: 16px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 14px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.admin-workspace {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}
.admin-main-content {
  min-width: 0;
}
.admin-nav-group {
  display: grid;
  gap: 5px;
}
.admin-nav-label {
  padding: 0 8px 4px;
  color: var(--text3);
  font-size: 0.66rem;
  font-weight: 800;
  text-transform: uppercase;
}
#screen-admin .admin-tabs .chip {
  width: 100%;
  min-height: 36px;
  justify-content: flex-start;
  padding: 8px 10px;
  border-color: transparent;
  background: transparent;
  text-align: left;
  font-size: 0.76rem;
}
#screen-admin #tab-btn-payments {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.admin-payment-badge {
  flex: 0 0 auto;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 10px;
  color: #fff;
  background: var(--red);
  font-size: 0.68rem;
  font-weight: 800;
  line-height: 20px;
  text-align: center;
}
.admin-payment-badge[hidden] {
  display: none;
}
#screen-admin .admin-tabs .chip:hover {
  background: var(--bg4);
  border-color: var(--border);
}
#screen-admin .admin-tabs .chip-active {
  color: var(--accent2);
  background: var(--accent-bg2);
  border-color: var(--accent);
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--text);
  text-align: left;
}
.admin-table th, .admin-table td {
  padding: 13px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.admin-table th {
  color: var(--text2);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.admin-table tbody tr:hover {
  background: var(--accent-bg2);
}
.admin-catalog-heading {
  margin-bottom: 14px;
}
.admin-catalog-heading h3 {
  margin: 0 0 4px;
  color: var(--accent2);
  font-size: 1.05rem;
}
.admin-catalog-heading p {
  margin: 0;
  color: var(--text3);
  font-size: 0.8rem;
}
.admin-catalog-totals {
  color: var(--text2);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}
.admin-catalog-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(300px, 1.2fr);
  gap: 14px;
  margin-bottom: 18px;
}
.admin-catalog-pane {
  min-width: 0;
  padding: 16px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.admin-catalog-pane h4 {
  margin: 0 0 11px;
  color: var(--text2);
  font-size: 0.84rem;
}
.admin-catalog-list {
  display: grid;
  gap: 7px;
  max-height: 360px;
  overflow-y: auto;
}
.admin-catalog-item {
  width: 100%;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 11px;
  color: var(--text);
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 7px;
  text-align: left;
}
button.admin-catalog-item {
  cursor: pointer;
  font: inherit;
}
button.admin-catalog-item:hover,
.admin-catalog-course.is-selected {
  color: var(--accent2);
  background: var(--accent-bg2);
  border-color: var(--accent);
}
.admin-catalog-item-main {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 7px;
}
.admin-catalog-item strong {
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 0.82rem;
}
.admin-catalog-count {
  flex: 0 0 auto;
  color: var(--text3);
  font-size: 0.72rem;
}
.admin-catalog-move-btn {
  flex: 0 0 auto;
  padding: 2px 8px;
  font-size: 0.7rem;
  font: inherit;
  color: var(--text2);
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  cursor: pointer;
  line-height: 1.5;
}
.admin-catalog-move-btn:hover {
  border-color: var(--accent);
  color: var(--accent2);
}
.admin-catalog-course-row {
  display: flex;
  align-items: center;
  gap: 6px;
}
.admin-catalog-course-row .admin-catalog-item {
  flex: 1 1 auto;
  min-width: 0;
  width: auto;
}
.admin-catalog-rename-btn {
  flex: 0 0 auto;
  padding: 2px 6px;
  font-size: 0.7rem;
  font: inherit;
  color: var(--text2);
  background: none;
  border: 1px solid var(--border);
  border-radius: 5px;
  cursor: pointer;
  line-height: 1.5;
}
.admin-catalog-rename-btn:hover {
  border-color: var(--accent);
  color: var(--accent2);
}
.admin-catalog-special {
  flex: 0 0 auto;
  padding: 2px 6px;
  color: var(--amber);
  background: var(--amber-bg);
  border-radius: 4px;
  font-size: 0.62rem;
  font-weight: 800;
}
.admin-course-settings-panel {
  margin-bottom: 26px;
  padding: 18px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.admin-course-settings-panel .admin-section-heading {
  margin-bottom: 12px;
}
.admin-course-settings-panel h3 {
  margin: 0 0 4px;
  color: var(--accent2);
  font-size: 1rem;
}
.admin-course-settings-panel p {
  margin: 0;
  color: var(--text3);
  font-size: 0.78rem;
}
.admin-table-scroll {
  overflow-x: auto;
}
.admin-table-message {
  color: var(--text3);
  text-align: center;
}
.admin-table-error {
  color: var(--red);
}
.admin-course-name {
  font-weight: 700;
}
.admin-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}
.admin-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.admin-toggle-track {
  position: relative;
  width: 36px;
  height: 20px;
  flex: 0 0 auto;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: background 0.18s, border-color 0.18s;
}
.admin-toggle-track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--text3);
  border-radius: 50%;
  transition: transform 0.18s, background 0.18s;
}
.admin-toggle input:checked + .admin-toggle-track {
  background: var(--accent-bg2);
  border-color: var(--accent);
}
.admin-toggle input:checked + .admin-toggle-track::after {
  background: var(--accent2);
  transform: translateX(16px);
}
.admin-toggle input:focus-visible + .admin-toggle-track {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.admin-toggle input:disabled + .admin-toggle-track {
  opacity: 0.45;
}
.admin-toggle-text {
  min-width: 42px;
  color: var(--text2);
  font-size: 0.76rem;
  font-weight: 700;
}
@media (max-width: 767px) {
  .admin-catalog-heading {
    align-items: flex-start;
  }
  .admin-catalog-totals {
    white-space: normal;
  }
  .admin-catalog-layout {
    grid-template-columns: 1fr;
  }
  .admin-catalog-list {
    max-height: 280px;
  }
}
#screen-admin .chip {
  border-radius: 9px;
  min-height: 40px;
  padding: 10px 14px;
  letter-spacing: 0.03em;
}
.admin-settings-panel {
  max-width: 720px;
  padding: 22px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.admin-settings-description {
  margin: 0 0 18px;
  color: var(--text3);
  font-size: 0.85rem;
  line-height: 1.5;
}
.admin-settings-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(150px, 0.4fr);
  gap: 12px;
}
.admin-settings-panel .lock-input {
  width: 100%;
  margin: 0;
  text-align: left;
  letter-spacing: 0;
}
.admin-settings-save {
  width: auto;
  justify-self: start;
}
.admin-status {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 800;
  white-space: nowrap;
}
.admin-status-active {
  color: var(--green-text);
  background: var(--green-bg);
  border-color: var(--green);
}
.admin-status-waiting,
.admin-status-review {
  color: var(--amber-text);
  background: var(--amber-bg);
  border-color: var(--amber);
}
.admin-status-rejected {
  color: var(--red-text);
  background: var(--red-bg);
  border-color: var(--red);
}
.admin-actions-wrap {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 6px;
  min-height: 30px;
}
.activity-cell {
  display: grid;
  grid-template-columns: 14px auto;
  grid-template-rows: auto auto;
  column-gap: 7px;
  align-items: center;
}
.activity-dot {
  grid-row: 1 / span 2;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.activity-online {
  background: #16f28b;
  box-shadow: 0 0 0 4px rgba(22, 242, 139, 0.15), 0 0 12px rgba(22, 242, 139, 0.9);
}
.activity-offline {
  background: #ff3b5f;
  box-shadow: 0 0 0 4px rgba(255, 59, 95, 0.12);
}
.activity-main {
  font-weight: 800;
  font-size: 0.82rem;
}
.activity-time {
  color: var(--text3);
  font-size: 0.7rem;
  white-space: nowrap;
}
.admin-form-group {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-top: 15px;
}
.option-group {
  display: flex;
  gap: 10px;
  align-items: center;
}
.admin-quiz-pill.special {
  border-color: var(--accent);
  color: var(--accent2);
  background: var(--accent-bg2);
}
.q-editor-row {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 25px;
}
.q-list-panel {
  border-right: 1px solid var(--border);
  padding-right: 20px;
  max-height: 550px;
  overflow-y: auto;
}
.q-edit-panel {
  padding-left: 5px;
}
.q-list-item {
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  margin-bottom: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.15s;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.q-list-item:hover, .q-list-item.active {
  border-color: var(--accent);
  background: var(--accent-bg2);
  color: var(--accent2);
}
.q-badge {
  font-size: 0.65rem;
  background: var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text2);
}
.tab-content {
  animation: fadeIn 0.25s ease-in-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== PROFILE PAGE GRID & STATS ===== */
.profile-layout-grid {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 32px;
  align-items: start;
}
@media (max-width: 860px) {
  .profile-layout-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}
.profile-settings-col {
  background: var(--bg2);
  border-radius: var(--radius);
  padding: 8px;
}
.profile-stats-col {
  background: var(--bg2);
  border-radius: var(--radius);
  padding: 8px;
}
.profile-course-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.profile-course-item {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.profile-course-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  flex: 1;
}
.profile-course-progress {
  flex: 2;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}
.profile-course-fill {
  height: 100%;
  border-radius: 3px;
}
.profile-course-ratio {
  font-size: 0.85rem;
  font-weight: 800;
  font-family: var(--font-mono);
  width: 45px;
  text-align: right;
}

/* ===== CUSTOM QUIZ BUILDER ===== */
.custom-quiz-builder-layout {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.builder-tree {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg3);
  padding: 16px;
}
.builder-ders-group {
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding-bottom: 12px;
  margin-bottom: 12px;
}
.builder-ders-group:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}
.builder-ders-header, .builder-quiz-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
  padding: 6px 0;
}
.builder-ders-header {
  font-size: 1rem;
  color: var(--accent2);
}
.builder-quiz-header {
  font-size: 0.85rem;
  color: var(--text);
  margin-left: 20px;
}
.builder-quiz-questions {
  margin-left: 44px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px 0;
}
.builder-question-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text2);
  padding: 4px 0;
}
.builder-question-item input[type="checkbox"], .builder-ders-header input[type="checkbox"], .builder-quiz-header input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--accent);
  cursor: pointer;
}
.builder-question-text {
  cursor: pointer;
  line-height: 1.4;
}

/* ===== INTERACTIVE CROP CURSOR ===== */
#profile-crop-canvas {
  cursor: grab;
}
#profile-crop-canvas:active {
  cursor: grabbing;
}

/* ===== ADMIN GALLERY SELECTOR ===== */
.gallery-select-wrapper {
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-top: 4px;
}
.admin-gallery-list {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 8px 4px;
  min-height: 80px;
  scrollbar-width: thin;
}
.gallery-thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}
.gallery-thumb:hover {
  border-color: var(--accent);
  transform: translateY(-2px) scale(1.05);
}
.gallery-thumb.selected {
  border-color: var(--green);
  box-shadow: 0 0 10px var(--glow);
}

/* ===== COLLAPSIBLE EXPLANATION ===== */
.explanation-details {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  transition: all 0.2s ease;
}
.explanation-details[open] {
  border-color: var(--accent);
}
.explanation-summary {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--text2);
  user-select: none;
  outline: none;
}
.explanation-badge {
  background: var(--accent-bg);
  color: var(--accent2);
  border: 1px solid var(--accent);
  padding: 3px 8px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  box-shadow: 0 0 8px var(--glow);
  animation: badgeGlow 2s infinite ease-in-out;
}
@keyframes badgeGlow {
  0%, 100% { box-shadow: 0 0 4px var(--glow); }
  50% { box-shadow: 0 0 12px var(--glow); border-color: var(--accent2); }
}
.explanation-action-hint {
  font-size: 0.72rem;
  color: var(--text3);
  font-style: italic;
}
.explanation-details[open] .explanation-action-hint {
  display: none;
}

/* ===== ANNOUNCEMENT READABILITY OVERRIDES ===== */
#announcement-desc {
  color: var(--text) !important;
  opacity: 0.95;
  line-height: 1.6;
  font-size: 0.9rem;
}
body.light #announcement-desc {
  color: #0b1a30 !important;
}

/* ===== NO EXPLANATION PLACEHOLDER ===== */
.explanation-none {
  border-style: dashed !important;
  cursor: pointer;
  opacity: 0.85;
  transition: opacity 0.15s, border-color 0.15s;
}
.explanation-none:hover {
  opacity: 1;
  border-color: var(--accent);
}
.badge-none {
  background: var(--bg4) !important;
  color: var(--text3) !important;
  border-color: var(--border) !important;
  animation: none !important;
  box-shadow: none !important;
}
body.light .badge-none {
  background: var(--bg3) !important;
  color: var(--text2) !important;
}

/* ===== QUESTION FADE IN TRANSITION ===== */
.question-card.fade-in {
  animation: cardFadeIn 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes cardFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== ADMIN DASHBOARD & DETAILS STYLING ===== */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.activity-cell {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.activity-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.activity-online {
  background-color: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.activity-offline {
  background-color: var(--text3);
}
.admin-gallery-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 8px;
  max-height: 150px;
  overflow-y: auto;
  padding: 8px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.gallery-thumb {
  width: 100%;
  height: 60px;
  object-fit: cover;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.15s;
}
.gallery-thumb:hover, .gallery-thumb.selected {
  border-color: var(--accent);
  transform: scale(1.04);
}
.sp-history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: var(--bg4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  gap: 10px;
  transition: border-color 0.15s;
}
.sp-history-item:hover {
  border-color: var(--accent);
}