:root {
  --map-green: #2f5d50;
  --map-green-2: #3f7565;
  --papyrus: #f4ecd8;
  --sand: #dfc79b;
  --gold: #c89436;
  --gold-2: #e0b45d;
  --ink: #23312d;
  --muted: #6d766e;
  --line: #ded4bd;
  --panel: #fffaf0;
  --white: #ffffff;
  --danger: #b94d48;
  --success: #26875b;
  --shadow: 0 18px 45px rgba(35, 49, 45, 0.12);
  --card-bg: rgba(255, 250, 240, 0.94);
  --sidebar-bg: rgba(255, 250, 240, 0.82);
  --nav-bg: #f8f3e7;
  --surface: rgba(255, 250, 240, 0.92);
  --input-bg: #ffffff;
}

/* ═══ DARK THEME ═══ */
body.dark {
  --map-green: #25b97e;
  --map-green-2: #1fa06b;
  --papyrus: #111827;
  --sand: #1e293b;
  --gold: #f59e0b;
  --gold-2: #fbbf24;
  --ink: #f1f5f9;
  --muted: #94a3b8;
  --line: #334155;
  --panel: #1e293b;
  --white: #0f172a;
  --danger: #ef4444;
  --success: #22c55e;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --card-bg: #1e293b;
  --sidebar-bg: #162032;
  --nav-bg: #0f172a;
  --surface: #162032;
  --input-bg: #1e293b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(200, 148, 54, 0.16), transparent 32rem),
    linear-gradient(180deg, var(--nav-bg) 0%, var(--papyrus) 100%);
  color: var(--ink);
  font-family: 'Cairo', Tahoma, Arial, sans-serif;
  letter-spacing: 0;
  -webkit-user-select: none;
  user-select: none;
  transition: background 0.3s ease, color 0.3s ease;
}

body.dark {
  background: var(--nav-bg);
}

button,
input,
textarea,
select {
  font: inherit;
}

input, textarea {
  -webkit-user-select: text;
  user-select: text;
}

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
}

/* ═══════════════════════════════════════
   LAYOUT
   ═══════════════════════════════════════ */

.layout {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 18px;
  border-left: 1px solid var(--line);
  background: var(--sidebar-bg);
  backdrop-filter: blur(18px);
  transition: background 0.3s ease;
}

.main {
  min-width: 0;
  padding: 18px 20px 36px;
}

.topbar {
  display: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 64px;
  height: 64px;
  flex: 0 0 auto;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.3));
}

.brand h1,
.brand h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.2;
  white-space: nowrap;
}

.brand p {
  margin: 4px 0 0;
  color: var(--muted);
  font-weight: 700;
  white-space: nowrap;
}

/* ═══════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════ */

.nav {
  display: grid;
  gap: 8px;
  margin-top: 28px;
}

.nav button,
.mini-action,
.icon-btn {
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  transition: all 0.25s ease;
}

.nav button {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 12px;
  text-align: right;
  font-weight: 800;
}

.nav-icon {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
}

.nav button.active,
.nav button:hover {
  background: var(--map-green);
  color: var(--white);
  transform: translateX(-4px);
}

/* ═══════════════════════════════════════
   CARDS (shared)
   ═══════════════════════════════════════ */

.user-card,
.card,
.course-card,
.post-card,
.lesson-card,
.auth-card,
.admin-box,
.stat-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.course-card:hover,
.post-card:hover,
.lesson-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 56px rgba(35, 49, 45, 0.18);
}

.user-card {
  margin-top: 24px;
  padding: 14px;
}

.user-card strong {
  display: block;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(47, 93, 80, 0.15);
  color: var(--map-green);
  font-size: 13px;
  font-weight: 800;
  transition: transform 0.2s ease;
}

.pill.gold {
  background: rgba(200, 148, 54, 0.18);
  color: var(--gold);
}

.pill.red {
  background: rgba(185, 77, 72, 0.15);
  color: var(--danger);
}

/* ═══════════════════════════════════════
   HERO
   ═══════════════════════════════════════ */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 22px;
  align-items: stretch;
}

.hero-panel {
  min-height: 320px;
  padding: clamp(24px, 4vw, 46px);
  border-radius: 8px;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(35, 49, 45, 0.92), rgba(47, 93, 80, 0.84)),
    url("https://images.unsplash.com/photo-1524995997946-a1c2e315a42f?auto=format&fit=crop&w=1200&q=80");
  background-position: center;
  background-size: cover;
  box-shadow: var(--shadow);
  animation: fadeInUp 0.6s ease-out;
}

.hero-panel h2 {
  max-width: 760px;
  margin: 18px 0 12px;
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1.15;
}

.hero-panel p {
  max-width: 680px;
  margin: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
  line-height: 1.9;
}

.hero-actions,
.row,
.toolbar,
.card-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-actions {
  margin-top: 26px;
}

/* ═══════════════════════════════════════
   ABOUT CAROUSEL
   ═══════════════════════════════════════ */

.about-section {
  scroll-margin-top: 24px;
}

.about-composer {
  margin-bottom: 16px;
}

.about-stack {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
}

.about-stack.is-stacked::before,
.about-stack.is-stacked::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 8px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  pointer-events: none;
}

.about-stack.is-stacked::before {
  transform: translateY(12px) scale(0.95);
  z-index: 1;
  opacity: 0.8;
}

.about-stack.is-stacked::after {
  transform: translateY(24px) scale(0.9);
  z-index: 0;
  opacity: 0.5;
}

.about-stack .about-card {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
  z-index: 2;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95) translateX(20px);
  transition: opacity 0.5s ease, transform 0.5s ease, visibility 0.5s ease;
}

.about-stack .about-card.active {
  position: relative;
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateX(0);
}

.about-image {
  min-height: 240px;
  background: var(--image) center / cover no-repeat, linear-gradient(135deg, var(--sand), var(--papyrus));
}

.about-content {
  display: grid;
  gap: 10px;
  padding: 18px;
}

.about-content h3,
.about-content p {
  margin: 0;
}

.about-content p {
  color: var(--muted);
  line-height: 1.9;
  white-space: pre-line;
}

.about-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

/* ═══════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 16px;
  border: 0;
  border-radius: 8px;
  background: var(--map-green);
  color: var(--white);
  text-decoration: none;
  font-weight: 900;
  transition: all 0.25s ease;
}

.btn:hover {
  background: #254b42;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(35, 49, 45, 0.2);
}

.btn:active {
  transform: translateY(0);
}

.btn.secondary {
  border: 1px solid rgba(255, 255, 255, 0.58);
  background: rgba(255, 255, 255, 0.12);
}

.btn.secondary:hover {
  background: rgba(255, 255, 255, 0.24);
}

.btn.gold {
  background: var(--gold);
  color: var(--ink);
}

.btn.gold:hover {
  background: var(--gold-2);
  box-shadow: 0 8px 24px rgba(200, 148, 54, 0.35);
}

.btn.whatsapp {
  background: #1fae65;
  font-size: 15px;
}

.btn.whatsapp:hover {
  background: #25c772;
  box-shadow: 0 8px 24px rgba(31, 174, 101, 0.3);
}

/* WhatsApp purchase banner */
.whatsapp-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  border-radius: 14px;
  background: linear-gradient(135deg, #128c4e 0%, #1fae65 100%);
  color: #fff;
  margin-bottom: 18px;
  animation: fadeInUp 0.4s ease-out;
  box-shadow: 0 8px 28px rgba(31, 174, 101, 0.25);
}

.whatsapp-banner h3 {
  margin: 0 0 4px;
  font-size: 20px;
}

.whatsapp-banner p {
  margin: 0;
  opacity: 0.9;
  font-size: 14px;
  line-height: 1.7;
}

.whatsapp-banner .btn.whatsapp {
  background: #fff;
  color: #128c4e;
  font-weight: 900;
  font-size: 16px;
  padding: 12px 28px;
  white-space: nowrap;
}

.whatsapp-banner .btn.whatsapp:hover {
  background: #e8f5ee;
  color: #0d6e3e;
}

.btn.danger {
  background: var(--danger);
}

.btn.danger:hover {
  background: #a03e3a;
}

.btn.ghost {
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
}

.btn.ghost:hover {
  border-color: var(--map-green);
  color: var(--map-green);
}

.file-btn {
  position: relative;
  overflow: hidden;
}

.file-btn input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* ═══════════════════════════════════════
   SIDE PANEL / STATS
   ═══════════════════════════════════════ */

.side-panel {
  padding: 22px;
  animation: fadeInUp 0.6s ease-out 0.15s both;
}

.side-panel h3,
.section-title h2,
.admin-box h3,
.card h3 {
  margin: 0;
}

.kpi-grid {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.stat-card {
  padding: 16px;
  transition: transform 0.25s ease;
}

.stat-card:hover {
  transform: scale(1.03);
}

.stat-card span {
  display: block;
  color: var(--muted);
  font-weight: 800;
}

.stat-card strong {
  display: block;
  margin-top: 6px;
  font-size: 28px;
}

/* ═══════════════════════════════════════
   SECTIONS / GRIDS
   ═══════════════════════════════════════ */

.section {
  margin-top: 28px;
  animation: fadeInUp 0.5s ease-out;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.section-title h2 {
  font-size: clamp(22px, 3vw, 34px);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

/* ═══════════════════════════════════════
   COURSE GRID (replaces carousel)
   ═══════════════════════════════════════ */

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 18px;
  animation: fadeInUp 0.4s ease-out;
}

.course-grid .empty {
  grid-column: 1 / -1;
}

/* ═══════════════════════════════════════
   COURSE / POST / LESSON CARDS
   ═══════════════════════════════════════ */

.course-card,
.post-card,
.lesson-card,
.card,
.admin-box {
  overflow: hidden;
}

.course-image,
.post-image,
.lesson-thumb {
  min-height: 160px;
  background:
    linear-gradient(135deg, rgba(47, 93, 80, 0.84), rgba(200, 148, 54, 0.58)),
    var(--image, none);
  background-position: center;
  background-size: cover;
  transition: transform 0.4s ease;
}

.course-card:hover .course-image,
.post-card:hover .post-image,
.lesson-card:hover .lesson-thumb {
  transform: scale(1.06);
}

.course-body,
.post-body,
.lesson-body,
.card {
  padding: 16px;
}

.course-body h3,
.post-body h3,
.lesson-body h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.muted {
  color: var(--muted);
}

.price {
  color: #7d561f;
  font-size: 20px;
  font-weight: 900;
}

/* Skeleton Loading Animation */
.skeleton-box {
  background: linear-gradient(90deg, var(--surface) 25%, var(--input-bg) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: skeletonLoading 1.5s infinite;
}
@keyframes skeletonLoading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ═══════════════════════════════════════
   FORMS / SEARCH
   ═══════════════════════════════════════ */

.search {
  width: min(420px, 100%);
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--ink);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.search:focus {
  outline: none;
  border-color: var(--map-green);
  box-shadow: 0 0 0 3px rgba(47, 93, 80, 0.12);
}

.field,
.textarea,
.select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--ink);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.field:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--map-green);
  box-shadow: 0 0 0 3px rgba(47, 93, 80, 0.12);
}

.textarea {
  min-height: 130px;
  resize: vertical;
}

.form {
  display: grid;
  gap: 12px;
}

.form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-weight: 800;
}

/* ═══════════════════════════════════════
   AUTH
   ═══════════════════════════════════════ */

.auth-wrap {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 22px;
}

.auth-card {
  width: min(460px, 100%);
  padding: 24px;
  animation: fadeInUp 0.5s ease-out;
}

.auth-card .brand {
  justify-content: center;
  margin-bottom: 18px;
  text-align: center;
}

.auth-credit {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  text-align: center;
}

.auth-credit a {
  color: var(--map-green);
  font-weight: 900;
  text-decoration: none;
}

.data-loading {
  min-height: min(420px, 70vh);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 14px;
  text-align: center;
}

.data-loading h2,
.data-loading p {
  margin: 0;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.tabs button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--ink);
  font-weight: 900;
  transition: all 0.25s ease;
}

.tabs button.active {
  background: var(--map-green);
  color: var(--white);
}

/* ═══════════════════════════════════════
   SPLASH
   ═══════════════════════════════════════ */

.splash {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 12% 15%, rgba(200, 148, 54, 0.28) 0 92px, transparent 94px),
    radial-gradient(circle at 84% 72%, rgba(47, 93, 80, 0.18) 0 122px, transparent 124px),
    var(--papyrus);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.splash.hide {
  opacity: 0;
  visibility: hidden;
}

.splash-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px;
}

.splash .splash-logo {
  width: 132px;
  height: 132px;
  animation: splashPulse 1.5s ease-in-out infinite;
}

.splash h1 {
  margin: 18px 0 6px;
  font-size: 30px;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.splash p {
  margin: 0;
  color: var(--gold);
  font-weight: 900;
  text-align: center;
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.splash-loader {
  margin-top: 28px;
  width: 40px;
  height: 40px;
  border: 4px solid var(--line);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: splashSpin 0.8s linear infinite;
}

@keyframes splashSpin {
  to { transform: rotate(360deg); }
}

/* ═══════════════════════════════════════
   THEME TOGGLE
   ═══════════════════════════════════════ */

.theme-toggle {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--card-bg);
  color: var(--gold);
  font-size: 20px;
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  transform: scale(1.1);
  background: var(--map-green);
  color: #fff;
}

/* ═══════════════════════════════════════
   MOBILE NAV
   ═══════════════════════════════════════ */

.mobile-nav {
  display: none;
}

/* ═══════════════════════════════════════
   ADMIN
   ═══════════════════════════════════════ */

.admin-box {
  padding: 16px;
  margin-bottom: 14px;
  background: var(--card-bg);
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

/* ═══════════════════════════════════════
   LIST / LIST ITEMS
   ═══════════════════════════════════════ */

.list {
  display: grid;
  gap: 10px;
}

.list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.list-item:hover {
  transform: translateX(-3px);
  box-shadow: 0 4px 12px rgba(35, 49, 45, 0.08);
}

/* ═══════════════════════════════════════
   VIDEO PLAYER — DRM-Style Protection
   ═══════════════════════════════════════ */

.video-container {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

body.video-modal-open {
  overflow: hidden;
}

.video-container.video-expanded {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: grid;
  place-items: center;
  padding: clamp(10px, 2vw, 28px);
  border-radius: 0;
  background: rgba(0, 0, 0, 0.96);
}

.video-container.video-expanded .video-box {
  width: min(96vw, 1180px);
  max-height: calc(100vh - 96px);
  border-radius: 12px;
}

.video-container.video-expanded.video-portrait .video-box {
  width: min(92vw, 520px);
  aspect-ratio: 9 / 16;
}

.video-container.video-expanded.video-landscape .video-box {
  width: min(96vw, 1180px);
  aspect-ratio: 16 / 9;
}

.video-container.video-expanded .video-controls {
  position: fixed;
  right: clamp(10px, 2vw, 28px);
  bottom: clamp(10px, 2vw, 24px);
  left: clamp(10px, 2vw, 28px);
  opacity: 1;
  border-radius: 12px;
  background: rgba(12, 14, 14, 0.88);
}

.video-box {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: #111;
  aspect-ratio: 16 / 9;
}

.video-box iframe {
  width: 100%;
  height: 100%;
  border: 0;
  pointer-events: none;
}

/* DRM-style protection — makes screenshots black */
.video-drm-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  mix-blend-mode: overlay;
  background: transparent;
}

/* Overlay to hide YouTube logo at bottom */
.video-yt-cover-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 52px;
  z-index: 3;
  background: linear-gradient(transparent, rgba(0,0,0,0.95) 60%);
  pointer-events: none;
}

/* Overlay to hide YouTube top bar */
.video-yt-cover-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 52px;
  z-index: 3;
  background: linear-gradient(rgba(0,0,0,0.85), transparent);
  pointer-events: none;
}

.video-message {
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--white);
  text-align: center;
}

.video-message h3 {
  margin: 0 0 10px;
}

.video-message p {
  max-width: 560px;
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.8;
}

/* Watermark — top right (fixed) */
.video-watermark {
  position: absolute;
  right: 18px;
  top: 16px;
  z-index: 5;
  padding: 7px 10px;
  border-radius: 8px;
  background: rgba(35, 49, 45, 0.64);
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  font-weight: 800;
  pointer-events: none;
  backdrop-filter: blur(4px);
}

/* Watermark — center (moving) */
.video-watermark-center {
  position: absolute;
  z-index: 4;
  padding: 8px 16px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.18);
  font-size: 22px;
  font-weight: 900;
  pointer-events: none;
  animation: watermarkMove 12s ease-in-out infinite alternate;
  text-shadow: 0 0 8px rgba(0,0,0,0.3);
  white-space: nowrap;
}

@keyframes watermarkMove {
  0%   { top: 25%; left: 15%; }
  25%  { top: 55%; left: 50%; }
  50%  { top: 35%; left: 70%; }
  75%  { top: 65%; left: 25%; }
  100% { top: 40%; left: 55%; }
}

/* Custom video controls */
.video-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: linear-gradient(transparent, rgba(0,0,0,0.88));
  opacity: 0;
  transition: opacity 0.35s ease;
}

.video-container:hover .video-controls {
  opacity: 1;
}

.video-controls button {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.video-controls button:hover {
  background: rgba(255,255,255,0.3);
}

.video-progress-bar {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.25);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.video-progress-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--gold);
  width: 0%;
  transition: width 0.15s linear;
}

.video-time {
  color: rgba(255,255,255,0.8);
  font-size: 13px;
  font-weight: 700;
  min-width: 45px;
  text-align: center;
  direction: ltr;
}

.video-volume-bar {
  width: 70px;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.25);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.video-volume-fill {
  height: 100%;
  border-radius: 3px;
  background: #fff;
  width: 100%;
}

/* Speed selector */
.video-speed {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 6px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 8px;
  min-height: 32px;
  cursor: pointer;
  text-align: center;
  transition: background 0.2s ease;
  font-family: inherit;
}

.video-speed:hover,
.video-speed:focus {
  background: rgba(255,255,255,0.25);
  outline: none;
}

.video-speed option {
  background: #1a1a1a;
  color: #fff;
}

/* Skip buttons text sizing */
.video-controls button[data-yt-skip] {
  font-size: 13px;
  font-weight: 800;
  width: auto;
  padding: 0 10px;
  border-radius: 8px;
  min-width: 42px;
}

/* Click-to-play overlay covering iframe to intercept clicks */
.video-click-layer {
  position: absolute;
  inset: 0;
  z-index: 2;
  cursor: pointer;
}



.protection-note {
  margin-top: 10px;
}

/* ═══════════════════════════════════════
   PRIVACY / SCREEN CAPTURE PROTECTION
   ═══════════════════════════════════════ */

/* Mobile: prevent long-press actions */
.video-protected,
.video-container,
.video-box,
.video-box iframe {
  -webkit-touch-callout: none !important;
  -webkit-user-select: none !important;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* DRM-like protection layer over video */
.video-protected {
  position: relative;
}

.video-protected::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  mix-blend-mode: difference;
  background: rgba(0, 0, 0, 0.005);
}

/* When page loses focus — BLACK screen */
body.privacy-black .video-protected iframe,
body.privacy-black .video-protected video,
body.privacy-black .video-container iframe {
  filter: brightness(0) !important;
}

body.privacy-black .video-protected::after,
body.privacy-black .video-container .video-box::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 20;
  background: #000;
}

/* Show student name/email ON TOP of black screen — visible in screenshots */
body.privacy-black .video-watermark {
  z-index: 25 !important;
  opacity: 0.7 !important;
  font-size: 16px !important;
  color: #4a4a4a !important;
}

body.privacy-black .video-watermark-center {
  z-index: 25 !important;
  opacity: 0.5 !important;
  font-size: 22px !important;
  color: #555 !important;
}

/* Hide controls when black */
body.privacy-black .video-controls {
  opacity: 0 !important;
}

/* Legacy blur kept for non-video elements */
body.privacy-blur .video-protected iframe {
  filter: blur(18px) brightness(0.08);
}

/* Section cover */
.section-cover {
  min-height: 140px;
  background:
    linear-gradient(135deg, rgba(47, 93, 80, 0.7), rgba(200, 148, 54, 0.5)),
    var(--image, none);
  background-position: center;
  background-size: cover;
}

/* ═══════════════════════════════════════
   POSTS
   ═══════════════════════════════════════ */

.post-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.avatar {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--papyrus);
}

.avatar-logo {
  width: 44px;
  height: 44px;
}

/* ═══════════════════════════════════════
   POST REACTIONS (Facebook-like)
   ═══════════════════════════════════════ */

.post-reactions {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 10px 0;
}

.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: transparent;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.25s ease;
}

.like-btn:hover {
  border-color: #e74c3c;
  color: #e74c3c;
  background: rgba(231, 76, 60, 0.06);
  transform: scale(1.05);
}

.like-btn.liked {
  border-color: #e74c3c;
  color: #e74c3c;
  background: rgba(231, 76, 60, 0.1);
}

.like-btn.liked:hover {
  background: rgba(231, 76, 60, 0.15);
}

.comment-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.comment-input-row .field {
  flex: 1;
  min-height: 40px;
}

.comment-input-row .btn {
  min-height: 40px;
  white-space: nowrap;
}

.post-comments-section {
  margin-top: 8px;
}

.post-comments-list {
  margin-top: 10px;
  display: grid;
  gap: 6px;
}

.post-comment-item {
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.post-comment-item strong {
  font-size: 13px;
  color: var(--map-green);
}

.post-comment-item p {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.6;
}

/* ═══════════════════════════════════════
   STUDENT ACTIONS
   ═══════════════════════════════════════ */

.student-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════
   STUDENTS
   ═══════════════════════════════════════ */

.student-row {
  align-items: flex-start;
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(320px, 1.2fr);
}

.student-info {
  display: grid;
  gap: 7px;
}

.student-courses {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════
   LOCKED STATE
   ═══════════════════════════════════════ */

.locked {
  display: grid;
  place-items: center;
  min-height: 280px;
  padding: 24px;
  border-radius: 8px;
  background: rgba(35, 49, 45, 0.88);
  color: var(--white);
  text-align: center;
}

/* ═══════════════════════════════════════
   TOAST
   ═══════════════════════════════════════ */

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  max-width: 380px;
  padding: 13px 16px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
  box-shadow: var(--shadow);
  animation: toastIn 0.4s ease-out;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.empty {
  padding: 28px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: var(--card-bg);
  text-align: center;
}

/* ═══════════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════════ */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes splashPulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}

/* ═══════════════════════════════════════
   RESPONSIVE — Tablet
   ═══════════════════════════════════════ */

@media (max-width: 1020px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
    background: var(--sidebar-bg);
    backdrop-filter: blur(14px);
  }

  .main {
    padding: 12px 10px 88px;
  }

  .hero,
  .grid,
  .grid.two,
  .admin-grid {
    grid-template-columns: 1fr;
  }

  .course-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
  }

  .hero-panel {
    min-height: 360px;
  }

  .mobile-nav {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 12;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(58px, 1fr));
    border-top: 1px solid var(--line);
    background: var(--surface);
  }

  .mobile-nav button {
    min-width: 0;
    min-height: 64px;
    border: 0;
    background: transparent;
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
  }

  .mobile-nav button {
    display: grid;
    place-items: center;
    gap: 4px;
  }

  .mobile-nav .nav-icon {
    width: 21px;
    height: 21px;
  }

  .mobile-nav button.active {
    color: var(--map-green);
    background: rgba(37, 185, 126, 0.1);
  }

  .video-controls {
    opacity: 1;
  }
}

/* ═══════════════════════════════════════
   RESPONSIVE — Mobile
   ═══════════════════════════════════════ */

@media (max-width: 540px) {
  .brand h1,
  .brand h2 {
    font-size: 17px;
  }

  .brand-mark {
    width: 48px;
    height: 48px;
  }

  .hero-panel h2 {
    font-size: 34px;
  }

  .section-title {
    align-items: stretch;
    flex-direction: column;
  }

  .about-image {
    min-height: 190px;
  }

  .list-item,
  .toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .student-row {
    grid-template-columns: 1fr;
  }

  .student-courses {
    justify-content: flex-start;
  }

  .btn,
  .field,
  .textarea,
  .select {
    width: 100%;
  }

  .video-watermark-center {
    font-size: 14px;
  }

  .video-controls {
    gap: 6px;
    padding: 8px 10px;
    overflow-x: auto;
  }

  .video-volume-bar {
    display: none;
  }

  .video-container.video-expanded {
    padding: 8px;
  }

  .video-container.video-expanded .video-box {
    width: 96vw;
    max-height: calc(100vh - 86px);
  }

  .video-container.video-expanded.video-portrait .video-box {
    width: min(94vw, 430px);
    max-height: calc(100vh - 92px);
  }

  .video-container.video-expanded .video-controls {
    right: 8px;
    left: 8px;
    bottom: 8px;
  }
}

/* ═══════════════════════════════════════
   PRINT PROTECTION
   ═══════════════════════════════════════ */

@media print {
  body * {
    display: none !important;
  }
  body::after {
    content: "المحتوى محمي ولا يمكن طباعته";
    display: block;
    text-align: center;
    font-size: 24px;
    padding: 100px;
  }
}

/* ═══════════════════════════════════════
   ANIMATED AUTH BACKGROUND (Volcano)
   ═══════════════════════════════════════ */

.animated-auth {
  position: relative;
  overflow: hidden;
  background: #1e3c72;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.scenery-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  z-index: 1;
  pointer-events: none;
}

.sky-gradient {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(180deg, #ff7e5f 0%, #feb47b 40%, #1a2a6c 80%, #121526 100%);
  background-size: 100% 400%;
  animation: volcanoSky 20s infinite alternate ease-in-out;
  transition: background 0.5s ease;
}

body.dark .sky-gradient {
  background: linear-gradient(180deg, #8b0000 0%, #4a0404 40%, #1a0000 80%, #000000 100%);
  animation: darkVolcanoSky 20s infinite alternate ease-in-out;
}

@keyframes volcanoSky {
  0% { background-position: 0% 0%; }
  100% { background-position: 0% 100%; }
}

@keyframes darkVolcanoSky {
  0% { background-position: 0% 0%; }
  100% { background-position: 0% 100%; }
}

/* Stars */
.stars {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 70%;
  background-image: 
    radial-gradient(2px 2px at 20px 30px, #ffffff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 60px 80px, #ffffff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 120px 150px, #ffffff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 200px 50px, #ffffff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 250px 220px, #ffffff, rgba(0,0,0,0));
  background-repeat: repeat;
  background-size: 300px 300px;
  opacity: 0;
  animation: starlight 20s infinite alternate ease-in-out;
}

body.dark .stars {
  opacity: 0.7;
  animation: none; /* Always visible in dark mode */
}

@keyframes starlight {
  0% { opacity: 0; }
  60% { opacity: 0; }
  100% { opacity: 0.9; }
}

/* Volcano Silhouettes */
.silhouettes {
  position: absolute;
  bottom: 0; left: 0; width: 100%;
  height: 35vh;
  min-height: 200px;
}

.ground, .volcano-base {
  fill: var(--ink);
  transition: fill 0.3s ease;
}

body.dark .ground, body.dark .volcano-base {
  fill: #050505;
}

.ground-dark, .volcano-shade {
  fill: #000000;
}

.lava-glow {
  animation: lavaPulse 2s infinite alternate;
}

@keyframes lavaPulse {
  0% { fill: #ff4500; filter: drop-shadow(0 0 10px #ff4500); }
  100% { fill: #ff8c00; filter: drop-shadow(0 0 30px #ff8c00); }
}

/* Smoke */
.smoke-container {
  position: absolute;
  bottom: 30vh; 
  left: 50%;
  width: 100%;
  height: 70vh;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 12;
}

@media (max-width: 768px) {
  .smoke-container { bottom: 25vh; }
}

.smoke {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 50px;
  height: 50px;
  background: rgba(80, 80, 80, 0.7);
  border-radius: 50%;
  transform: translateX(-50%);
  filter: blur(10px);
}

body.dark .smoke {
  background: rgba(30, 30, 30, 0.9);
}

.smoke.s1 { animation: smokeRiseLeft 6s infinite linear 0s; width: 60px; height: 60px; }
.smoke.s2 { animation: smokeRiseRight 7s infinite linear 1.5s; width: 80px; height: 80px; }
.smoke.s3 { animation: smokeRiseLeft 6.5s infinite linear 3s; width: 70px; height: 70px; }
.smoke.s4 { animation: smokeRiseRight 6s infinite linear 4.5s; width: 90px; height: 90px; }

@keyframes smokeRiseLeft {
  0% { bottom: 0; left: 50%; transform: translateX(-50%) scale(1); opacity: 0.8; }
  100% { bottom: 100%; left: 10%; transform: translateX(-50%) scale(4); opacity: 0; }
}

@keyframes smokeRiseRight {
  0% { bottom: 0; left: 50%; transform: translateX(-50%) scale(1); opacity: 0.8; }
  100% { bottom: 100%; left: 90%; transform: translateX(-50%) scale(4); opacity: 0; }
}

/* Fire particles */
.fire-container {
  position: absolute;
  bottom: 30vh;
  left: 50%;
  width: 100%;
  height: 60vh;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 12;
}

@media (max-width: 768px) {
  .fire-container { bottom: 25vh; }
}

.fire {
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 8px;
  height: 8px;
  background: #ff4500;
  border-radius: 50%;
  box-shadow: 0 0 10px #ff4500, 0 0 20px #ff8c00;
}

.fire.f1 { animation: fireShootLeft 2.2s infinite ease-out 0s; }
.fire.f2 { animation: fireShootRight 1.8s infinite ease-out 0.5s; }
.fire.f3 { animation: fireShootLeft 2.5s infinite ease-out 1s; }
.fire.f4 { animation: fireShootRight 1.5s infinite ease-out 1.2s; }
.fire.f5 { animation: fireShootLeft 2s infinite ease-out 1.8s; }

@keyframes fireShootLeft {
  0% { bottom: 0; left: 50%; transform: scale(1); opacity: 1; }
  50% { opacity: 1; }
  100% { bottom: 100%; left: 20%; transform: scale(0.2); opacity: 0; }
}

@keyframes fireShootRight {
  0% { bottom: 0; left: 50%; transform: scale(1); opacity: 1; }
  50% { opacity: 1; }
  100% { bottom: 100%; left: 80%; transform: scale(0.2); opacity: 0; }
}

/* Auth Card Overrides */
.relative-z {
  position: relative;
  z-index: 10;
  background: rgba(255, 250, 240, 0.35); 
  backdrop-filter: blur(8px);
  box-shadow: 0 15px 35px rgba(0,0,0,0.2);
  margin: 20px;
  width: min(460px, calc(100% - 40px));
}

body.dark .relative-z {
  background: rgba(30, 41, 59, 0.40);
}