/* ==========================================================================
   coursa - Unified Design System (CSS)
   Light & Dark Mode + 5 Accent Colors + Glassmorphism + Modern UI
   ========================================================================== */

:root {
  /* Default: Indigo Accent */
  --accent-primary: #6366f1;
  --accent-secondary: #a855f7;
  --accent-rgb: 99, 102, 241;
  --accent-glow: rgba(99, 102, 241, 0.25);
  /* Fonts */
  --font-arabic: 'Cairo', system-ui, -apple-system, sans-serif;
  --font-latin: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', ui-monospace, monospace;
  --text-white: black;
}

/* ==========================================================================
   5 Accent Color Themes
   ========================================================================== */
[data-accent="indigo"] {
  --accent-primary: #6366f1;
  --accent-secondary: #a855f7;
  --accent-rgb: 99, 102, 241;
  --accent-glow: rgba(99, 102, 241, 0.25);
    --accent-bg1:#cbb3b3;

}

[data-accent="emerald"] {
  --accent-primary: #10b981;
  --accent-secondary: #059669;
  --accent-rgb: 16, 185, 129;
  --accent-glow: rgba(16, 185, 129, 0.25);
    --accent-bg1:#cbb3b3;

}
textarea.form-control {
    min-height: calc(1.5em + .75rem + calc(var(--bs-border-width) * 2));
    direction: ltr!important;
}
[data-accent="crimson"] {
    --accent-primary: #e30b0b;
    --accent-secondary: #e11d48;
    --accent-rgb: 244, 63, 94;
    --accent-glow: rgba(244, 63, 94, 0.25);
      --accent-bg1:#cbb3b3;

}
[data-accent="rose"] {
    --accent-primary: #f6abb8;
    --accent-secondary: #edb3c2;
    --accent-rgb: 244, 200, 190;
    --accent-glow: rgb(246 232 234 / 4%);
      --accent-bg1:#cbb3b3;

}

[data-accent="amber"] {
  --accent-primary: #f59e0b;
  --accent-secondary: #d97706;
  --accent-rgb: 245, 158, 11;
  --accent-glow: rgba(245, 158, 11, 0.25);
    --accent-bg1:#cbb3b3;

}

[data-accent="cyan"] {
  --accent-primary: #06b6d4;
  --accent-secondary: #0284c7;
  --accent-rgb: 6, 182, 212;
  --accent-glow: rgba(6, 182, 212, 0.25);
    --accent-bg1:#cbb3b3;

}

/* ==========================================================================
   Dark Theme (Default)
   ========================================================================== */
[data-bs-theme="dark"],
body.theme-dark {
  --app-bg: #020617;
  /* slate-950 */
  --app-surface: #0f172a;
  /* slate-900 */
  --app-surface-2: #1e293b;
  /* slate-800 */
  --app-surface-3: #334155;
  /* slate-700 */
  --app-border: #1e293b;
  /* slate-800 */
  --app-border-light: rgba(255, 255, 255, 0.08);
  --app-text: #f8fafc;
  /* slate-50 */
  --app-text-muted: #94a3b8;
  /* slate-400 */
  --app-text-dim: #64748b;
  /* slate-500 */
  --app-header-bg: rgba(2, 6, 23, 0.85);
  --app-card-bg: #0f172a;
  --app-card-border: #1e293b;
  --app-input-bg: #0f172a;
  --app-input-border: #334155;
  --app-code-bg: #020617;
  color-scheme: dark;
  --text-white: white;

}

/* ==========================================================================
   Light Theme
   ========================================================================== */
[data-bs-theme="light"],
body.theme-light {
  --app-bg: #f8fafc;
  /* slate-50 */
  --app-surface: #ffffff;
  /* white */
  --app-surface-2: #f1f5f9;
  /* slate-100 */
  --app-surface-3: #e2e8f0;
  /* slate-200 */
  --app-border: #e2e8f0;
  /* slate-200 */
  --app-border-light: rgba(0, 0, 0, 0.06);
  --app-text: #0f172a;
  /* slate-900 */
  --app-text-muted: #64748b;
  /* slate-500 */
  --app-text-dim: #94a3b8;
  /* slate-400 */
  --app-header-bg: rgba(255, 255, 255, 0.90);
  --app-card-bg: #ffffff;
  --app-card-border: #e2e8f0;
  --app-input-bg: #f1f5f9;
  --app-input-border: #cbd5e1;
  --app-code-bg: #0f172a;
  color-scheme: light;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
body {
  font-family: var(--font-arabic);
  background-color: var(--app-bg) !important;
  color: var(--app-text) !important;
  transition: background-color 0.25s ease, color 0.25s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.text-white {
  color: var(--text-white) !important;
}

[lang="en"] body {
  font-family: var(--font-latin);
}

main {
  flex: 1;
}

code,
pre {
  font-family: var(--font-mono);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
.text-light{
    color:white!important;
}

::-webkit-scrollbar-track {
  background: var(--app-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--app-surface-3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

/* ==========================================================================
   Universal Glass & Cards
   ========================================================================== */
.bg-app-surface {
  background-color: var(--app-surface) !important;
}

.bg-app-surface-2 {
  background-color: var(--app-surface-2) !important;
}

.border-app {
  border-color: var(--app-border) !important;
  color: var( --app-text);
}

.text-app-muted {
  color: var(--app-text-muted) !important;
}

.text-app-dim {
  color: var(--app-text-dim) !important;
}

.card-custom {
  background-color: var(--app-card-bg);
  border: 1px solid var(--app-card-border);
  border-radius: 1rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card-custom:hover {
  border-color: rgba(var(--accent-rgb), 0.4);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2), 0 0 15px var(--accent-glow);
}

/* ==========================================================================
   Brand & Buttons with Accent Gradient
   ========================================================================== */
.btn-accent {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary)) !important;
  color: #ffffff !important;
  border: none !important;
  border-radius: 0.75rem;
  font-weight: 700;
  box-shadow: 0 4px 14px var(--accent-glow);
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.btn-accent:hover {
  opacity: 0.95;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--accent-glow);
  color: #ffffff !important;
}

.btn-outline-app {
  background-color: var(--app-surface);
  border: 1px solid var(--app-border);
  color: var(--app-text);
  border-radius: 0.75rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-outline-app:hover {
  background-color: var(--app-surface-2);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.accent-text {
  color: var(--accent-primary) !important;
}

.accent-bg {
  background-color: var(--accent-primary) !important;
}

.accent-badge {
  background-color: rgba(var(--accent-rgb), 0.15);
  border: 1px solid rgba(var(--accent-rgb), 0.35);
  color: var(--accent-primary);
  border-radius: 9999px;
  font-weight: 700;
}

.accent-gradient-text {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary), #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Logo Box */
.logo-box {
  position: relative;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.logo-box .logo-inner {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  font-weight: 900;
  font-size: 30px;
}

.logo-pulse-dot {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 10px;
  height: 10px;
  background-color: var(--accent-primary);
  border: 2px solid var(--app-bg);
  border-radius: 50%;
  animation: pulseDot 2s infinite;
}
.dropdown-menu-end[data-bs-popper] {
    left: auto!important;
}
@keyframes pulseDot {

  0%,
  100% {
    transform: scale(1);
    opacity: 1;
  }

  50% {
    transform: scale(1.3);
    opacity: 0.7;
  }
}

/* ==========================================================================
   Navbar Styles
   ========================================================================== */
.navbar-coursa {
  background-color: var(--app-header-bg) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--app-border) !important;
  position: sticky;
  top: 0;
  z-index: 1030;
  transition: all 0.25s ease;
}

.nav-pill-custom {
  color: var(--app-text-muted);
  font-weight: 700;
  font-size: 0.825rem;
  padding: 0.25rem 0.55rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
  text-decoration: none;
}

.nav-pill-custom:hover {
  color: var(--app-text);
  background-color: var(--app-surface-2);
}

.nav-pill-custom.active {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #ffffff !important;
  box-shadow: 0 4px 12px var(--accent-glow);
}

/* Color Presets Swatches */
.color-dot {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  margin-left: 6px;
  margin-right: 6px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.color-dot.bg-indigo {
  background: linear-gradient(135deg, #6366f1, #a855f7);
}

.color-dot.bg-emerald {
  background: linear-gradient(135deg, #10b981, #059669);
}

.color-dot.bg-crimson {
  background: linear-gradient(135deg, #f43f5e, #e11d48);
}

.color-dot.bg-rose {
  background: linear-gradient(135deg, #f6bcc6, #f7e0e6);
}

.color-dot.bg-amber {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}

.color-dot.bg-cyan {
  background: linear-gradient(135deg, #06b6d4, #0284c7);
}

/* ==========================================================================
   Hero Section & Glowing Blobs
   ========================================================================== */
.hero-glow-1 {
  position: absolute;
  top: -50px;
  left: 20%;
  width: 380px;
  height: 380px;
  background-color: var(--accent-bg1);
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
}

.hero-glow-2 {
  position: absolute;
  top: 30%;
  right: 5%;
  width: 320px;
  height: 320px;
  background-color: var(--accent-secondary);
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 0;
}

/* Category capsule button */
.category-btn {
  background-color: var(--app-surface);
  border: 1px solid var(--app-border);
  color: var(--app-text-muted);
  border-radius: 0.75rem;
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.category-btn:hover {
  background-color: var(--app-surface-2);
  color: var(--app-text);
}

.category-btn.active {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 12px var(--accent-glow);
}

/* ==========================================================================
   DRM Video Player & Watermark
   ========================================================================== */
.player-container {
  position: relative;
  background-color: #000000;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--app-border);
}

.player-watermark {
  position: absolute;
  top: 20%;
  left: 20%;
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.8rem;
  font-weight: 800;
  font-family: var(--font-mono);
  pointer-events: none;
  z-index: 20;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.9);
  transition: all 4s ease-in-out;
  user-select: none;
  background: rgba(0, 0, 0, 0.3);
  padding: 4px 8px;
  border-radius: 6px;
}

/* Code Sandbox styling */
.code-editor-area {
  background-color: #020617;
  color: #e2e8f0;
  font-family: var(--font-mono);
  font-size: 0.825rem;
  border-radius: 0.75rem;
  border: 1px solid #1e293b;
  resize: vertical;
  line-height: 1.6;
}

.code-terminal-output {
  background-color: #020617;
  border: 1px solid #1e293b;
  border-radius: 0.75rem;
  font-family: var(--font-mono);
  color: #38bdf8;
  font-size: 0.8rem;
  min-height: 120px;
  max-height: 240px;
  overflow-y: auto;
}

/* ==========================================================================
   Roadmap & Tree Nodes
   ========================================================================== */
.roadmap-step-card {
  background-color: var(--app-card-bg);
  border: 1px solid var(--app-card-border);
  border-radius: 1rem;
  padding: 1.25rem;
  position: relative;
  transition: all 0.2s ease;
}

.roadmap-step-card.active {
  border-color: var(--accent-primary);
  box-shadow: 0 0 15px var(--accent-glow);
}

.roadmap-badge-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.85rem;
  background-color: var(--app-surface-2);
  color: var(--app-text);
  border: 1px solid var(--app-border);
}

.roadmap-step-card.active .roadmap-badge-number {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #ffffff;
  border-color: transparent;
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-container-custom {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1090;
}

[dir="rtl"] .toast-container-custom {
  right: auto;
  left: 1.5rem;
}

.toast-custom {
  background-color: var(--app-surface);
  border: 1px solid var(--accent-primary);
  color: var(--app-text);
  border-radius: 0.85rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 12px var(--accent-glow);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  font-weight: 700;
  animation: slideToast 0.3s ease forwards;
}

@keyframes slideToast {
  from {
    transform: translateY(20px);
    opacity: 0;
  }

  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Universal Inputs */
.form-control-app {
  background-color: var(--app-input-bg) !important;
  border-color: var(--app-input-border) !important;
  color: var(--app-text) !important;
  border-radius: 0.75rem;
}

.form-control-app:focus {
  border-color: var(--accent-primary) !important;
  box-shadow: 0 0 0 3px var(--accent-glow) !important;
}

.dropdown-menu-app {
  background-color: var(--app-surface) !important;
  border-color: var(--app-border) !important;
  color: var(--app-text) !important;
  border-radius: 1rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3) !important;
}

.dropdown-menu-app .dropdown-item {
  color: var(--app-text-muted) !important;
  border-radius: 0.5rem;
  margin-bottom: 2px;
  font-weight: 600;
  font-size: 0.825rem;
  padding: 0.5rem 0.75rem;
}

.dropdown-menu-app .dropdown-item:hover {
  background-color: var(--app-surface-2) !important;
  color: var(--app-text) !important;
}

.dropdown-menu-app .dropdown-item.active {
  background-color: rgba(var(--accent-rgb), 0.15) !important;
  color: var(--accent-primary) !important;
}