/* ============================================================
   MAIN CSS — Mohamed Yousef Theme
   Complete Design System
   ============================================================ */

/* ─── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-ar);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body.lang-en {
  font-family: var(--font-en);
}

/* Particle Canvas */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ─── Container ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-sm  { max-width: var(--container-sm); }
.container-md  { max-width: var(--container-md); }
.container-lg  { max-width: var(--container-lg); }
.container-2xl { max-width: var(--container-2xl); }

/* ─── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 3vw, 1.8rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p { margin-bottom: var(--space-4); color: var(--text-secondary); }
a { color: var(--color-primary-light); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent); }

img, video { max-width: 100%; height: auto; display: block; }

/* Bilingual text visibility */
.lang-ar .en { display: none; }
.lang-en .ar { display: none; }
.lang-ar .ar { display: inline; }
.lang-en .en { display: inline; }

/* ─── Section ───────────────────────────────────────────────── */
.section {
  padding: var(--space-20) 0;
  position: relative;
  z-index: 1;
}

.section-sm  { padding: var(--space-12) 0; }
.section-lg  { padding: var(--space-24) 0; }

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  font-size: 0.85rem;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  backdrop-filter: blur(10px);
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  border: 2px solid transparent;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  outline: none;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before { opacity: 1; }

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-accent {
  background: var(--gradient-accent);
  color: var(--text-on-accent);
  box-shadow: var(--shadow-gold);
  font-weight: 700;
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 60px rgba(212, 160, 23, 0.4);
  color: var(--text-on-accent);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border-medium);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover {
  border-color: var(--color-primary);
  background: var(--bg-glass);
  color: var(--text-primary);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary-light);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
}

.btn-sm  { padding: var(--space-2) var(--space-4); font-size: 0.875rem; }
.btn-lg  { padding: var(--space-4) var(--space-8); font-size: 1.1rem; }
.btn-xl  { padding: var(--space-5) var(--space-10); font-size: 1.2rem; }

.btn-icon {
  width: 44px; height: 44px;
  padding: 0;
  border-radius: 50%;
}

.btn-full { width: 100%; }

/* ─── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-lg);
}

.card-glass {
  background: var(--gradient-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
}

.card-body  { padding: var(--space-6); }
.card-img   { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.card-title { font-size: 1.2rem; font-weight: 700; margin-bottom: var(--space-2); }
.card-desc  { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 0; }
.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ─── Grid System ───────────────────────────────────────────── */
.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ─── NAVIGATION ────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-3) 0;
  transition: all var(--transition-base);
  background: transparent;
}

.site-header.scrolled {
  background: rgba(10, 8, 18, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
  padding: var(--space-2) 0;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Brand */
.navbar-brand { text-decoration: none; flex-shrink: 0; }
.brand-logo { display: flex; align-items: center; gap: var(--space-3); }
.brand-icon { flex-shrink: 0; animation: spin-slow 20s linear infinite; }

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name-ar { font-family: var(--font-ar); font-size: 1.1rem; font-weight: 800; color: var(--text-primary); }
.brand-name-en { font-family: var(--font-en); font-size: 1rem; font-weight: 700; color: var(--text-primary); display: none; }
.brand-subtitle { font-size: 0.7rem; color: var(--color-accent); font-weight: 500; letter-spacing: 0.05em; }

.lang-ar .brand-name-en,
.lang-ar .brand-subtitle.en { display: none; }
.lang-ar .brand-name-ar { display: block; }
.lang-ar .brand-subtitle.ar { display: block; }
.lang-en .brand-name-ar { display: none; }
.lang-en .brand-name-en { display: block; }
.lang-en .brand-subtitle.ar { display: none; }
.lang-en .brand-subtitle.en { display: block; }

/* Nav List */
.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: var(--space-1);
}

.nav-item { position: relative; }

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.nav-link:hover, .nav-item.active .nav-link {
  color: var(--text-primary);
  background: var(--bg-glass);
}

.nav-item.active .nav-link {
  color: var(--color-accent);
}

/* Live Dot */
.live-dot {
  width: 8px; height: 8px;
  background: #FF4444;
  border-radius: 50%;
  animation: pulse-red 1.5s infinite;
  display: inline-block;
}

@keyframes pulse-red {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 68, 68, 0.5); }
  50%       { box-shadow: 0 0 0 6px rgba(255, 68, 68, 0); }
}

/* Dropdown */
.has-dropdown .dropdown-arrow {
  transition: transform var(--transition-fast);
}
.has-dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  inset-inline-start: 0;
  min-width: 220px;
  background: rgba(15, 12, 30, 0.95);
  backdrop-filter: blur(30px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
}

.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.dropdown-item:hover {
  background: var(--bg-glass);
  color: var(--text-primary);
}

.dropdown-icon { font-size: 1.1rem; }

/* Navbar Actions */
.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 3px;
}

.lang-btn {
  background: transparent;
  border: none;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  line-height: 1;
}

.lang-btn.active {
  background: var(--gradient-primary);
  color: white;
}

/* User Menu */
.user-menu { position: relative; }

.user-avatar-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3) var(--space-1) var(--space-1);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-primary);
}

.user-avatar-btn:hover {
  border-color: var(--color-primary);
}

.user-avatar-img { border-radius: 50%; width: 32px; height: 32px; }
.user-name { font-size: 0.85rem; font-weight: 600; max-width: 100px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.user-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  inset-inline-end: 0;
  min-width: 200px;
  background: rgba(15, 12, 30, 0.95);
  backdrop-filter: blur(30px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
}

.user-menu:hover .user-dropdown,
.user-menu:focus-within .user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.user-dropdown-item:hover { background: var(--bg-glass); color: var(--text-primary); }
.user-dropdown-item.danger:hover { background: rgba(255, 68, 68, 0.1); color: #FF6B6B; }
.dropdown-divider { border: none; border-top: 1px solid var(--border-subtle); margin: var(--space-1) 0; }

/* Mobile toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
  display: block;
}

/* ─── HERO SECTION ──────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
  padding-top: 100px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
}

.hero-bg-orb-1 {
  width: 600px; height: 600px;
  background: var(--color-primary);
  top: -200px;
  right: -100px;
  animation: orb-float 8s ease-in-out infinite;
}

.hero-bg-orb-2 {
  width: 400px; height: 400px;
  background: var(--color-accent);
  bottom: -100px;
  left: 10%;
  animation: orb-float 10s ease-in-out infinite reverse;
}

.hero-bg-orb-3 {
  width: 300px; height: 300px;
  background: #1A0A5E;
  top: 30%;
  left: 30%;
  animation: orb-float 12s ease-in-out infinite;
}

@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -30px) scale(1.05); }
  66%       { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.hero-text { animation: fade-up 0.8s ease both; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(212, 160, 23, 0.1);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-full);
  padding: var(--space-2) var(--space-4);
  font-size: 0.85rem;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.hero-title .highlight {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 550px;
  margin-bottom: var(--space-8);
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-10);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.hero-stat-item { text-align: center; }
.hero-stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}
.hero-stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  animation: fade-up 0.8s ease 0.2s both;
}

.hero-photo-wrap {
  position: relative;
  width: 380px;
  height: 480px;
}

.hero-photo-frame {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-xl);
  background: var(--gradient-card);
  border: 2px solid var(--border-medium);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-glow);
}

.hero-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.hero-photo-frame .placeholder-teacher {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #1A1040, #2A1060);
  color: var(--text-muted);
  font-size: 5rem;
}

.hero-photo-badge {
  position: absolute;
  bottom: -16px;
  inset-inline-start: 50%;
  transform: translateX(-50%);
  background: var(--gradient-accent);
  color: var(--text-on-accent);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: var(--shadow-gold);
}

.hero-float-card {
  position: absolute;
  background: rgba(15, 12, 30, 0.9);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  box-shadow: var(--shadow-md);
  animation: float-card 4s ease-in-out infinite;
}

.hero-float-card-1 {
  top: 60px;
  inset-inline-start: -60px;
  animation-delay: 0s;
}
.hero-float-card-2 {
  bottom: 80px;
  inset-inline-end: -60px;
  animation-delay: 2s;
}

@keyframes float-card {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.float-card-icon { font-size: 1.8rem; }
.float-card-text { display: flex; flex-direction: column; }
.float-card-num  { font-size: 1.2rem; font-weight: 800; color: var(--text-primary); }
.float-card-label { font-size: 0.7rem; color: var(--text-muted); }

/* ─── STATS BAR ─────────────────────────────────────────────── */
.stats-bar {
  background: var(--bg-card);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-6) 0;
  position: relative;
  z-index: 1;
}

.stats-bar-inner {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.stat-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.stat-icon { font-size: 1.8rem; }
.stat-num {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.85rem; color: var(--text-muted); }

.stat-divider {
  width: 1px;
  height: 50px;
  background: var(--border-subtle);
}

/* ─── COURSES SECTION ───────────────────────────────────────── */
.courses-section {}

.course-filter {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

.filter-btn {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

.course-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-lg);
}

.course-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg, #1A1040, #2A1060);
}

.course-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.course-card:hover .course-thumb img { transform: scale(1.05); }

.course-subject-badge {
  position: absolute;
  top: var(--space-3);
  inset-inline-start: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  backdrop-filter: blur(10px);
}

.badge-chemistry { background: rgba(76, 175, 80, 0.3); color: #81C784; border: 1px solid rgba(76, 175, 80, 0.5); }
.badge-physics   { background: rgba(33, 150, 243, 0.3); color: #64B5F6; border: 1px solid rgba(33, 150, 243, 0.5); }
.badge-both      { background: rgba(156, 39, 176, 0.3); color: #CE93D8; border: 1px solid rgba(156, 39, 176, 0.5); }

.course-grade-badge {
  position: absolute;
  top: var(--space-3);
  inset-inline-end: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(212, 160, 23, 0.25);
  color: var(--color-accent);
  border: 1px solid var(--border-accent);
  backdrop-filter: blur(10px);
}

.course-play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 8, 18, 0.6);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.course-card:hover .course-play-overlay { opacity: 1; }

.play-btn-large {
  width: 60px; height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition-bounce);
}

.play-btn-large:hover { transform: scale(1.1); }

.course-body { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; }

.course-meta {
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  flex-wrap: wrap;
}

.course-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.course-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  flex: 1;
}

.course-desc { font-size: 0.875rem; color: var(--text-secondary); flex: 1; }

.course-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.course-price { font-size: 1.2rem; font-weight: 800; color: var(--color-accent); }
.course-price .free-badge { color: #66BB6A; font-size: 1rem; }

/* ─── YOUTUBE SECTION ───────────────────────────────────────── */
.youtube-section {
  background: linear-gradient(180deg, transparent, rgba(24, 10, 60, 0.5), transparent);
}

.youtube-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-5);
}

.yt-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
}

.yt-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 0, 0, 0.3);
  box-shadow: 0 12px 40px rgba(255, 0, 0, 0.1);
}

.yt-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: #0D0B1A;
  overflow: hidden;
}

.yt-thumb img { width: 100%; height: 100%; object-fit: cover; }
.yt-duration {
  position: absolute;
  bottom: var(--space-2);
  inset-inline-end: var(--space-2);
  background: rgba(0,0,0,0.85);
  color: white;
  padding: 2px var(--space-2);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.yt-play-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
  background: rgba(10, 8, 18, 0.5);
}
.yt-card:hover .yt-play-icon { opacity: 1; }

.yt-body { padding: var(--space-4); }
.yt-title { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); margin-bottom: var(--space-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.yt-meta  { font-size: 0.8rem; color: var(--text-muted); display: flex; gap: var(--space-3); }

/* ─── TESTIMONIALS ──────────────────────────────────────────── */
.testimonials-section {
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  gap: var(--space-5);
  animation: scroll-track 40s linear infinite;
  width: max-content;
}

.testimonials-track:hover { animation-play-state: paused; }

@keyframes scroll-track {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.testimonial-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  width: 320px;
  flex-shrink: 0;
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: var(--space-4);
  inset-inline-end: var(--space-4);
  font-size: 4rem;
  line-height: 1;
  color: var(--color-primary);
  opacity: 0.3;
  font-family: serif;
}

.testimonial-stars { color: var(--color-accent); margin-bottom: var(--space-3); font-size: 0.9rem; }
.testimonial-text  { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: var(--space-4); line-height: 1.7; }
.testimonial-author { display: flex; align-items: center; gap: var(--space-3); }
.author-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; color: white; font-weight: 700; font-size: 1rem; }
.author-name  { font-size: 0.9rem; font-weight: 700; color: var(--text-primary); }
.author-grade { font-size: 0.75rem; color: var(--text-muted); }

/* ─── SUBSCRIPTION PLANS ────────────────────────────────────── */
.plans-section {}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.plan-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
  position: relative;
}

.plan-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.plan-card.featured {
  background: linear-gradient(145deg, #2A1060, #1A0A3E);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: scale(1.05);
}

.plan-card.featured:hover { transform: scale(1.05) translateY(-4px); }

.plan-popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-accent);
  color: var(--text-on-accent);
  padding: var(--space-1) var(--space-5);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
}

.plan-icon { font-size: 2.5rem; margin-bottom: var(--space-4); }
.plan-name { font-size: 1.3rem; font-weight: 800; margin-bottom: var(--space-2); }
.plan-desc { font-size: 0.875rem; color: var(--text-muted); margin-bottom: var(--space-6); }

.plan-price {
  display: flex;
  align-items: flex-end;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
}

.plan-price-amount { font-size: 2.5rem; font-weight: 900; color: var(--color-accent); line-height: 1; }
.plan-price-currency { font-size: 1rem; color: var(--text-muted); margin-bottom: 4px; }
.plan-price-period   { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 4px; }

.plan-features { list-style: none; margin-bottom: var(--space-8); display: flex; flex-direction: column; gap: var(--space-3); }
.plan-feature  {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.plan-feature .check { color: #66BB6A; font-size: 1rem; flex-shrink: 0; }
.plan-feature .cross { color: #EF5350; font-size: 1rem; flex-shrink: 0; }

/* ─── PAYMENT METHODS ───────────────────────────────────────── */
.payment-methods-section {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  margin-top: var(--space-10);
}

.payment-tabs {
  display: flex;
  background: var(--bg-main);
  border-radius: var(--radius-md);
  padding: var(--space-1);
  margin-bottom: var(--space-6);
  gap: var(--space-1);
}

.payment-tab {
  flex: 1;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.payment-tab.active {
  background: var(--gradient-primary);
  color: white;
}

.payment-logo { height: 24px; }
.vodafone-btn { background: linear-gradient(135deg, #E60000, #FF4040); }
.etisalat-btn { background: linear-gradient(135deg, #009D52, #00C264); }
.instapay-btn { background: linear-gradient(135deg, #6C3FC5, #9B6EE8); }

/* ─── PARENT DASHBOARD ──────────────────────────────────────── */
.dashboard-hero {
  background: linear-gradient(135deg, #0D0B1A 0%, #1A0A3E 100%);
  padding: calc(80px + var(--space-12)) 0 var(--space-12);
  position: relative;
  overflow: hidden;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-6);
  align-items: start;
}

.dashboard-sidebar {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: sticky;
  top: 90px;
}

.sidebar-user-card {
  padding: var(--space-6);
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}

.sidebar-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  margin: 0 auto var(--space-3);
  border: 3px solid var(--color-primary);
  display: block;
}

.sidebar-nav { padding: var(--space-2); }
.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: inherit;
}
.sidebar-nav-item:hover, .sidebar-nav-item.active {
  background: var(--bg-glass);
  color: var(--text-primary);
}
.sidebar-nav-item.active { color: var(--color-accent); }

.dashboard-main { display: flex; flex-direction: column; gap: var(--space-6); }

/* Stats Cards */
.stats-cards-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.stat-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.stat-card-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.icon-purple { background: rgba(108, 63, 197, 0.15); }
.icon-green  { background: rgba(102, 187, 106, 0.15); }
.icon-gold   { background: rgba(212, 160, 23, 0.15); }
.icon-blue   { background: rgba(100, 181, 246, 0.15); }
.stat-card-val  { font-size: 1.8rem; font-weight: 800; color: var(--text-primary); }
.stat-card-label { font-size: 0.8rem; color: var(--text-muted); }

/* Chart Panel */
.chart-panel {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.chart-panel-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-5); }
.chart-panel-title  { font-size: 1.1rem; font-weight: 700; }

/* Progress Bar */
.progress-bar-wrap { margin-bottom: var(--space-4); }
.progress-bar-header { display: flex; justify-content: space-between; margin-bottom: var(--space-2); font-size: 0.875rem; }
.progress-track { height: 8px; background: var(--bg-main); border-radius: var(--radius-full); overflow: hidden; }
.progress-fill  { height: 100%; border-radius: var(--radius-full); transition: width 1s ease; }
.fill-primary { background: var(--gradient-primary); }
.fill-green   { background: linear-gradient(90deg, #43A047, #66BB6A); }
.fill-gold    { background: var(--gradient-accent); }

/* Attendance Table */
.attendance-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.attendance-table th { text-align: start; padding: var(--space-3) var(--space-4); color: var(--text-muted); font-weight: 600; font-size: 0.8rem; border-bottom: 1px solid var(--border-subtle); }
.attendance-table td { padding: var(--space-3) var(--space-4); border-bottom: 1px solid rgba(255,255,255,0.04); color: var(--text-secondary); }
.attendance-table tr:hover td { background: var(--bg-glass); }
.att-status { display: inline-flex; align-items: center; gap: var(--space-1); padding: 3px var(--space-2); border-radius: var(--radius-full); font-size: 0.75rem; font-weight: 600; }
.status-attended { background: rgba(102, 187, 106, 0.15); color: #66BB6A; }
.status-absent   { background: rgba(239, 83, 80, 0.15); color: #EF5350; }
.status-partial  { background: rgba(212, 160, 23, 0.15); color: var(--color-accent); }

/* ─── EXAM ENGINE ───────────────────────────────────────────── */
.exam-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.exam-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  margin-bottom: var(--space-6);
}

.exam-timer {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}
.exam-timer.danger { color: #EF5350; animation: timer-pulse 1s ease infinite; }
@keyframes timer-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

.exam-progress { flex: 1; margin: 0 var(--space-6); }
.exam-question-count { font-size: 0.85rem; color: var(--text-muted); text-align: center; margin-bottom: var(--space-2); }

.question-card {
  background: var(--gradient-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-bottom: var(--space-5);
}

.question-num { font-size: 0.85rem; color: var(--color-accent); font-weight: 700; margin-bottom: var(--space-3); }
.question-text { font-size: 1.1rem; font-weight: 600; color: var(--text-primary); margin-bottom: var(--space-6); line-height: 1.7; }

.question-options { display: flex; flex-direction: column; gap: var(--space-3); }
.option-label {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--bg-main);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  color: var(--text-secondary);
}
.option-label:hover { border-color: var(--color-primary); color: var(--text-primary); background: var(--bg-glass); }
.option-label.selected { border-color: var(--color-primary); background: rgba(108, 63, 197, 0.1); color: var(--text-primary); }
.option-label.correct  { border-color: #66BB6A; background: rgba(102, 187, 106, 0.1); color: #66BB6A; }
.option-label.wrong    { border-color: #EF5350; background: rgba(239, 83, 80, 0.1); color: #EF5350; }

.option-radio { opacity: 0; position: absolute; }
.option-letter {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  flex-shrink: 0;
  border: 2px solid var(--border-subtle);
}
.option-label.selected .option-letter { background: var(--color-primary); color: white; border-color: transparent; }
.option-label.correct  .option-letter { background: #66BB6A; color: white; border-color: transparent; }
.option-label.wrong    .option-letter { background: #EF5350; color: white; border-color: transparent; }
.option-text { flex: 1; font-size: 0.95rem; }

/* ─── GAMIFICATION ──────────────────────────────────────────── */
.leaderboard-table { width: 100%; border-collapse: collapse; }
.leaderboard-table td { padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--border-subtle); }
.rank-medal   { font-size: 1.2rem; }
.rank-1 .rank-medal::before { content: '🥇'; }
.rank-2 .rank-medal::before { content: '🥈'; }
.rank-3 .rank-medal::before { content: '🥉'; }
.points-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  background: rgba(212, 160, 23, 0.15);
  color: var(--color-accent);
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
}

/* ─── PAGE LOADER ───────────────────────────────────────────── */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg-deep);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.page-loader.done { opacity: 0; visibility: hidden; }
.loader-inner { text-align: center; }
.loader-atom { width: 80px; height: 80px; margin: 0 auto var(--space-4); position: relative; }
.loader-nucleus {
  width: 20px; height: 20px;
  background: var(--color-accent);
  border-radius: 50%;
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}
.loader-electron {
  position: absolute;
  width: 10px; height: 10px;
  background: var(--color-primary);
  border-radius: 50%;
  top: 50%; left: 50%;
  margin: -5px;
}
.e1 { animation: orbit 1.5s linear infinite; transform-origin: 35px 0; }
.e2 { animation: orbit 2s linear infinite reverse; transform-origin: -35px 0; top: 30%; }
.e3 { animation: orbit 2.5s linear infinite; transform-origin: 0 -35px; left: 30%; }
@keyframes orbit {
  from { transform: rotate(0deg) translateX(35px); }
  to   { transform: rotate(360deg) translateX(35px); }
}
.loader-text { color: var(--text-muted); font-size: 0.9rem; }

/* ─── TOAST NOTIFICATIONS ───────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  inset-inline-end: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--bg-card-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 280px;
  max-width: 400px;
  animation: toast-in 0.3s ease;
  backdrop-filter: blur(20px);
}
.toast.hiding { animation: toast-out 0.3s ease forwards; }

@keyframes toast-in  { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toast-out { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(20px); } }

.toast-icon { font-size: 1.2rem; flex-shrink: 0; }
.toast-msg  { flex: 1; font-size: 0.875rem; color: var(--text-secondary); }
.toast-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1rem; flex-shrink: 0; }

.toast.success { border-inline-start: 3px solid #66BB6A; }
.toast.error   { border-inline-start: 3px solid #EF5350; }
.toast.info    { border-inline-start: 3px solid var(--color-primary); }
.toast.warning { border-inline-start: 3px solid var(--color-accent); }

/* ─── WhatsApp Float ────────────────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-6);
  inset-inline-start: var(--space-6);
  z-index: var(--z-sticky);
  width: 56px; height: 56px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  text-decoration: none;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 35px rgba(37, 211, 102, 0.5);
  color: white;
}
.whatsapp-tooltip {
  position: absolute;
  inset-inline-start: calc(100% + var(--space-2));
  background: #25D366;
  color: white;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}
.whatsapp-float:hover .whatsapp-tooltip { opacity: 1; }

/* ─── FOOTER ────────────────────────────────────────────────── */
.site-footer {
  background: var(--bg-deep);
  position: relative;
  z-index: 1;
  margin-top: var(--space-20);
}
.footer-wave { line-height: 0; overflow: hidden; }
.footer-wave svg { display: block; }
.footer-body { padding: var(--space-16) 0 var(--space-10); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.5fr; gap: var(--space-10); }

.footer-logo { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4); }
.footer-brand-name { font-size: 1.05rem; font-weight: 800; color: var(--text-primary); }
.footer-brand-sub  { font-size: 0.75rem; color: var(--color-accent); }
.footer-desc { font-size: 0.875rem; color: var(--text-muted); margin-bottom: var(--space-5); line-height: 1.8; }

.footer-social { display: flex; gap: var(--space-3); }
.social-link {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-base);
  text-decoration: none;
}
.social-link:hover { border-color: var(--color-primary); color: var(--color-primary-light); transform: translateY(-2px); }
.social-link.whatsapp:hover { border-color: #25D366; color: #25D366; }

.footer-title { font-size: 0.95rem; font-weight: 700; color: var(--text-primary); margin-bottom: var(--space-4); }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: var(--space-2); }
.footer-link  { color: var(--text-muted); font-size: 0.875rem; transition: color var(--transition-fast); text-decoration: none; }
.footer-link:hover { color: var(--color-accent); }

.footer-contact-list { display: flex; flex-direction: column; gap: var(--space-3); margin-bottom: var(--space-5); }
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.875rem;
  color: var(--text-muted);
}
.contact-icon { font-size: 1rem; width: 20px; text-align: center; }

/* Footer Newsletter */
.footer-newsletter h4 { font-size: 0.875rem; color: var(--text-secondary); margin-bottom: var(--space-2); font-weight: 600; }
.newsletter-input-wrap { display: flex; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-full); overflow: hidden; }
.newsletter-input { flex: 1; background: none; border: none; padding: var(--space-3) var(--space-4); color: var(--text-primary); font-size: 0.875rem; outline: none; }
.newsletter-input::placeholder { color: var(--text-muted); }
.newsletter-btn { background: var(--gradient-primary); border: none; color: white; width: 44px; font-size: 1rem; cursor: pointer; transition: opacity var(--transition-fast); }
.newsletter-btn:hover { opacity: 0.9; }

/* Footer Bottom */
.footer-bottom { border-top: 1px solid var(--border-subtle); padding: var(--space-5) 0; }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.footer-copy { font-size: 0.8rem; color: var(--text-muted); margin: 0; }
.footer-bottom-links { display: flex; gap: var(--space-5); }
.footer-bottom-link { font-size: 0.8rem; color: var(--text-muted); text-decoration: none; }
.footer-bottom-link:hover { color: var(--color-accent); }
.footer-bottom-badges { display: flex; gap: var(--space-2); }
.payment-badge { font-size: 0.7rem; color: var(--text-muted); border: 1px solid var(--border-subtle); border-radius: var(--radius-full); padding: 3px var(--space-2); }

/* ─── UTILITY CLASSES ───────────────────────────────────────── */
.text-center  { text-align: center; }
.text-start   { text-align: start; }
.text-end     { text-align: end; }
.text-muted   { color: var(--text-muted); }
.text-accent  { color: var(--color-accent); }
.text-primary-color { color: var(--color-primary-light); }
.text-success { color: #66BB6A; }
.text-danger  { color: #EF5350; }

.d-flex       { display: flex; }
.d-grid       { display: grid; }
.d-none       { display: none; }
.d-block      { display: block; }

.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.flex-wrap    { flex-wrap: wrap; }
.gap-2        { gap: var(--space-2); }
.gap-3        { gap: var(--space-3); }
.gap-4        { gap: var(--space-4); }
.gap-5        { gap: var(--space-5); }
.gap-6        { gap: var(--space-6); }

.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }

.p-4  { padding: var(--space-4); }
.p-5  { padding: var(--space-5); }
.p-6  { padding: var(--space-6); }
.p-8  { padding: var(--space-8); }

.rounded-sm   { border-radius: var(--radius-sm); }
.rounded-md   { border-radius: var(--radius-md); }
.rounded-lg   { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.w-full  { width: 100%; }
.h-full  { height: 100%; }

.overflow-hidden { overflow: hidden; }
.relative        { position: relative; }
.z-1             { z-index: 1; }

/* ─── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-content       { grid-template-columns: 1fr; text-align: center; }
  .hero-visual        { display: none; }
  .hero-cta           { justify-content: center; }
  .hero-stats         { justify-content: center; }
  .plans-grid         { grid-template-columns: 1fr; }
  .plan-card.featured { transform: none; }
  .dashboard-grid     { grid-template-columns: 1fr; }
  .dashboard-sidebar  { position: static; }
  .stats-cards-row    { grid-template-columns: repeat(2, 1fr); }
  .footer-grid        { grid-template-columns: 1fr 1fr; }
  .navbar-menu        { display: none; }
  .mobile-menu-toggle { display: flex; }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--space-4); }
  .section   { padding: var(--space-14) 0; }
  .hero-title { font-size: clamp(1.8rem, 6vw, 2.8rem); }
  .footer-grid { grid-template-columns: 1fr; }
  .stats-bar-inner { gap: var(--space-4); }
  .stat-divider { display: none; }
  .stats-cards-row { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .stats-cards-row { grid-template-columns: 1fr; }
  .payment-tabs { flex-wrap: wrap; }
}

/* Mobile Nav open state */
.navbar-menu.is-open {
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0;
  top: 70px;
  background: rgba(10, 8, 18, 0.98);
  backdrop-filter: blur(30px);
  padding: var(--space-6);
  z-index: var(--z-modal);
  overflow-y: auto;
}

.navbar-menu.is-open .nav-list {
  flex-direction: column;
  width: 100%;
  gap: var(--space-2);
}

.navbar-menu.is-open .nav-link {
  font-size: 1.1rem;
  padding: var(--space-4);
  width: 100%;
}

.navbar-menu.is-open .dropdown-menu {
  position: static;
  opacity: 1;
  visibility: visible;
  transform: none;
  box-shadow: none;
  border: none;
  background: var(--bg-glass);
  margin-top: var(--space-1);
  border-radius: var(--radius-sm);
}