/* ============================================================
   DESIGN TOKENS & CSS CUSTOM PROPERTIES
   Color palette derived from the logo: Deep Blue + Gold/Amber
============================================================ */
:root {
  /* Primary — Deep Royal Blue */
  --primary-50: #eef4ff;
  --primary-100: #d9e6ff;
  --primary-200: #bcd3ff;
  --primary-300: #8eb8ff;
  --primary-400: #5991ff;
  --primary-500: #3366ff;
  --primary-600: #1a45f5;
  --primary-700: #1333e1;
  --primary-800: #162bb6;
  --primary-900: #182a8f;
  --primary-950: #0f1a57;

  /* Accent — Warm Gold / Amber (from logo) */
  --accent-50: #fffbeb;
  --accent-100: #fef3c7;
  --accent-200: #fde68a;
  --accent-300: #fcd34d;
  --accent-400: #fbbf24;
  --accent-500: #f59e0b;
  --accent-600: #d97706;
  --accent-700: #b45309;
  --accent-800: #92400e;
  --accent-900: #78350f;

  /* Neutrals */
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --gray-950: #020617;

  /* Semantic Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --info: #3b82f6;

  /* Feature Card Colors */
  --blue: #3b82f6;
  --purple: #8b5cf6;
  --teal: #14b8a6;
  --amber: #f59e0b;
  --rose: #f43f5e;
  --green: #22c55e;

  /* Background */
  --bg-body: #fafbfe;
  --bg-section: #ffffff;
  --bg-section-alt: #f0f4ff;
  --bg-dark: #050a1a;
  --bg-dark-secondary: #0a1128;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --bg-glass-dark: rgba(10, 17, 40, 0.85);

  /* Text */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --text-inverse: #ffffff;

  /* Borders */
  --border-light: rgba(0, 0, 0, 0.06);
  --border-medium: rgba(0, 0, 0, 0.1);
  --border-glass: rgba(255, 255, 255, 0.18);

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-2xl: 0 24px 64px rgba(0, 0, 0, 0.16);
  --shadow-glow: 0 0 40px rgba(51, 102, 255, 0.15);
  --shadow-glow-accent: 0 0 40px rgba(245, 158, 11, 0.2);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Typography */
  --font-primary: 'Tajawal', 'Cairo', sans-serif;
  --font-display: 'Cairo', 'Tajawal', sans-serif;

  /* Spacing */
  --section-py: clamp(80px, 10vw, 140px);
  --container-px: clamp(16px, 4vw, 32px);
  --container-max: 1280px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 200ms;
  --duration-normal: 350ms;
  --duration-slow: 500ms;

  /* Z-index */
  --z-navbar: 1000;
  --z-mobile-menu: 999;
  --z-float: 100;
  --z-whatsapp: 900;
  --z-back-top: 800;
}

/* ============================================================
   RESET & BASE
============================================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  color: var(--text-primary);
  background-color: var(--bg-body);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--duration-fast) ease;
}

ul {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}

/* ============================================================
   REVEAL ANIMATION SYSTEM — Replaces AOS library
   Pure CSS transitions triggered by .revealed class
============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays via data-delay attribute */
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }
.reveal[data-delay="6"] { transition-delay: 0.6s; }

/* ============================================================
   UTILITIES
============================================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   BUTTONS
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0));
  opacity: 0;
  transition: opacity var(--duration-fast) ease;
}

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

.btn--primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: white;
  box-shadow: 0 4px 20px rgba(26, 69, 245, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(26, 69, 245, 0.4);
}

.btn--outline {
  border: 2px solid var(--primary-500);
  color: var(--primary-600);
  background: transparent;
}

.btn--outline:hover {
  background: var(--primary-50);
  transform: translateY(-2px);
}

.btn--white {
  background: white;
  color: var(--primary-700);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn--white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.btn--outline-white {
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: white;
}

.btn--outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
  transform: translateY(-2px);
}

.btn--lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

.btn--block {
  width: 100%;
}

.btn--glow {
  animation: btn-glow 2s ease-in-out infinite;
}

@keyframes btn-glow {
  0%, 100% { box-shadow: 0 4px 20px rgba(26, 69, 245, 0.3); }
  50% { box-shadow: 0 4px 40px rgba(26, 69, 245, 0.5); }
}

/* ============================================================
   SECTION HEADER
============================================================ */
.section-header {
  text-align: center;
  margin-bottom: clamp(48px, 6vw, 72px);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-header__tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 20px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary-50), var(--accent-50));
  color: var(--primary-700);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 16px;
  border: 1px solid var(--primary-100);
}

.section-header__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-header__desc {
  color: var(--text-secondary);
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 1.8;
}

/* ============================================================
   NAVBAR
============================================================ */
.navbar {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: var(--z-navbar);
  padding: 16px 0;
  transition: padding var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
  will-change: transform;
}

.navbar--scrolled {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border-light);
  padding: 10px 0;
  box-shadow: var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.navbar__logo-img {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-normal) var(--ease-spring);
}

.navbar__logo:hover .navbar__logo-img {
  transform: scale(1.08) rotate(-3deg);
}

.navbar__logo-text {
  display: flex;
  flex-direction: column;
}

.navbar__brand {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  color: var(--primary-700);
  line-height: 1.2;
}

.navbar__sub {
  font-size: 0.72rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar__link {
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--duration-fast) ease, background var(--duration-fast) ease;
  position: relative;
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--primary-600);
  background: var(--primary-50);
}

.navbar__cta {
  flex-shrink: 0;
}

/* Hamburger */
.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  gap: 6px;
  transition: background var(--duration-fast) ease;
}

.navbar__toggle:hover {
  background: var(--gray-100);
}

.navbar__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-normal) var(--ease-out);
}

.navbar__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Menu — reduced blur for performance */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  z-index: var(--z-mobile-menu);
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  backdrop-filter: blur(16px) saturate(180%);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal) var(--ease-out);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__inner {
  text-align: center;
  transform: translateY(20px);
  transition: transform var(--duration-slow) var(--ease-out);
}

.mobile-menu.active .mobile-menu__inner {
  transform: translateY(0);
}

.mobile-menu__links li {
  margin-bottom: 8px;
}

.mobile-menu__links a {
  display: inline-block;
  padding: 14px 32px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  border-radius: var(--radius-lg);
  transition: background var(--duration-fast) ease, color var(--duration-fast) ease;
}

.mobile-menu__links a:hover {
  background: var(--primary-50);
  color: var(--primary-600);
}

.mobile-menu__cta {
  margin-top: 24px;
}

/* ============================================================
   HERO
============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #f0f4ff 0%, #fafbfe 40%, #fffbeb 100%);
  overflow: hidden;
  contain: layout style;
}

.hero__bg-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

/* Reduced blur from 80px→40px for compositing performance.
   Larger radius on gradient compensates visually. */
.hero__shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.4;
  will-change: transform;
}

.hero__shape--1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--primary-200), transparent 60%);
  top: -200px;
  right: -100px;
  animation: float-shape 20s ease-in-out infinite;
}

.hero__shape--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-200), transparent 60%);
  bottom: -100px;
  left: -100px;
  animation: float-shape 15s ease-in-out infinite reverse;
}

.hero__shape--3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, var(--primary-100), transparent 60%);
  top: 50%;
  left: 50%;
  animation: float-shape 18s ease-in-out infinite 5s;
}

.hero__shape--4 {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, var(--accent-100), transparent 60%);
  top: 20%;
  left: 30%;
  animation: float-shape 12s ease-in-out infinite 3s;
}

@keyframes float-shape {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -30px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(20px, 10px) scale(1.02); }
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent-50), var(--accent-100));
  border: 1px solid var(--accent-200);
  color: var(--accent-800);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 24px;
  animation: badge-shine 3s ease-in-out infinite;
}

@keyframes badge-shine {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
  50% { box-shadow: 0 0 20px 4px rgba(245, 158, 11, 0.15); }
}

.hero__badge i {
  color: var(--accent-500);
  font-size: 1rem;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* Hero Stats — reduced blur */
.hero__stats {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 24px 32px;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  max-width: fit-content;
}

.hero__stat {
  text-align: center;
  padding: 0 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero__stat-number {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
  color: var(--primary-600);
  line-height: 1;
}

.hero__stat-plus {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 900;
  color: var(--accent-500);
}

.hero__stat-label {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  font-weight: 600;
  margin-top: 4px;
}

.hero__stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-medium);
}

/* Hero Visual */
.hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__image-wrapper {
  position: relative;
  width: 100%;
  max-width: 480px;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-2xl);
}

.hero__image {
  width: 100%;
  border-radius: var(--radius-2xl);
  transition: transform var(--duration-slow) var(--ease-out);
}

.hero__image-wrapper:hover .hero__image {
  transform: scale(1.03);
}

/* Replaced animated blur glow with a static gradient glow — saves GPU compositing */
.hero__image-glow {
  position: absolute;
  inset: -4px;
  border-radius: var(--radius-2xl);
  background: linear-gradient(135deg, var(--primary-400), var(--accent-400));
  z-index: -1;
  opacity: 0.35;
  filter: blur(16px);
}

/* Floating Badges — reduced blur */
.hero__float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-lg);
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  font-size: 0.85rem;
  font-weight: 700;
  z-index: var(--z-float);
  animation: float-badge 6s ease-in-out infinite;
}

.hero__float i {
  font-size: 1.1rem;
}

.hero__float--1 {
  top: 10%;
  left: -20px;
  animation-delay: 0s;
}

.hero__float--1 i {
  color: var(--accent-500);
}

.hero__float--2 {
  bottom: 15%;
  right: -20px;
  animation-delay: 3s;
}

.hero__float--2 i {
  color: var(--primary-500);
}

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

/* Scroll Indicator */
.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero__scroll-mouse {
  width: 28px;
  height: 44px;
  border: 2px solid var(--gray-300);
  border-radius: 14px;
  position: relative;
  opacity: 0.5;
  transition: opacity var(--duration-fast) ease;
}

.hero__scroll-mouse:hover {
  opacity: 0.8;
}

.hero__scroll-wheel {
  width: 4px;
  height: 10px;
  background: var(--primary-400);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(14px); }
}

/* ============================================================
   FEATURES
============================================================ */
.features {
  padding: var(--section-py) 0;
  background: var(--bg-section);
  position: relative;
  contain: layout style;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 36px 28px;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  opacity: 0;
  transition: opacity var(--duration-normal) ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.feature-card:hover .feature-card__icon {
  transform: scale(1.1) rotate(-5deg);
}

.feature-card__icon--blue {
  background: rgba(59, 130, 246, 0.1);
  color: var(--blue);
}

.feature-card__icon--purple {
  background: rgba(139, 92, 246, 0.1);
  color: var(--purple);
}

.feature-card__icon--teal {
  background: rgba(20, 184, 166, 0.1);
  color: var(--teal);
}

.feature-card__icon--amber {
  background: rgba(245, 158, 11, 0.1);
  color: var(--amber);
}

.feature-card__icon--rose {
  background: rgba(244, 63, 94, 0.1);
  color: var(--rose);
}

.feature-card__icon--green {
  background: rgba(34, 197, 94, 0.1);
  color: var(--green);
}

/* Color top borders for hover */
.feature-card:nth-child(1)::before { background: var(--blue); }
.feature-card:nth-child(2)::before { background: var(--purple); }
.feature-card:nth-child(3)::before { background: var(--teal); }
.feature-card:nth-child(4)::before { background: var(--amber); }
.feature-card:nth-child(5)::before { background: var(--rose); }
.feature-card:nth-child(6)::before { background: var(--green); }

.feature-card__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card__desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.8;
}

/* ============================================================
   COURSES
============================================================ */
.courses {
  padding: var(--section-py) 0;
  background: var(--bg-section-alt);
  position: relative;
  contain: layout style;
}

.courses__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: start;
}

.course-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  border: 1px solid var(--border-light);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

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

.course-card--featured {
  border: 2px solid var(--primary-200);
  box-shadow: var(--shadow-glow);
  background: linear-gradient(180deg, rgba(51, 102, 255, 0.03) 0%, white 100%);
}

.course-card--featured:hover {
  box-shadow: 0 16px 48px rgba(51, 102, 255, 0.18);
}

.course-card__badge {
  position: absolute;
  top: 20px;
  left: 20px;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: var(--primary-100);
  color: var(--primary-700);
  font-size: 0.75rem;
  font-weight: 700;
}

.course-card__badge--gold {
  background: linear-gradient(135deg, var(--accent-100), var(--accent-200));
  color: var(--accent-800);
}

.course-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.course-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 4px 16px rgba(26, 69, 245, 0.25);
}

.course-card__stage {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  font-weight: 600;
}

.course-card__title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.course-card__desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.course-card__features {
  margin-bottom: 24px;
}

.course-card__features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.course-card__features li i {
  color: var(--success);
  font-size: 0.8rem;
  flex-shrink: 0;
}

/* ============================================================
   JOURNEY / TIMELINE
============================================================ */
.journey {
  padding: var(--section-py) 0;
  background: var(--bg-section);
  position: relative;
  contain: layout style;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px 0;
}

.timeline__line {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 32px;
  width: 3px;
  background: linear-gradient(180deg, var(--primary-200), var(--accent-200), var(--primary-200));
  border-radius: 2px;
}

.timeline__item {
  position: relative;
  padding-right: 80px;
  padding-bottom: 48px;
  padding-left: 0;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__number {
  position: absolute;
  right: 14px;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  z-index: 2;
  box-shadow: 0 4px 16px rgba(26, 69, 245, 0.25);
}

.timeline__content {
  background: var(--bg-card);
  padding: 28px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  position: relative;
}

.timeline__content:hover {
  transform: translateX(-4px);
  box-shadow: var(--shadow-lg);
}

.timeline__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.timeline__content h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.timeline__content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ============================================================
   TOP STUDENTS
============================================================ */
.top-students {
  padding: var(--section-py) 0;
  background: var(--bg-section-alt);
  position: relative;
  contain: layout style;
}

.students__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.student-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 36px 24px;
  text-align: center;
  border: 1px solid var(--border-light);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

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

.student-card__rank {
  position: absolute;
  top: 16px;
  left: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gray-100);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}

.student-card:nth-child(1) .student-card__rank {
  background: linear-gradient(135deg, #ffd700, #ffb300);
  color: white;
}

.student-card:nth-child(2) .student-card__rank {
  background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
  color: white;
}

.student-card:nth-child(3) .student-card__rank {
  background: linear-gradient(135deg, #cd7f32, #b87333);
  color: white;
}

.student-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-100), var(--primary-200));
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 16px;
  transition: transform var(--duration-normal) var(--ease-spring);
}

.student-card:hover .student-card__avatar {
  transform: scale(1.1);
}

.student-card__avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.student-card__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.student-card__score {
  display: block;
  font-size: 0.9rem;
  color: var(--primary-600);
  font-weight: 700;
  margin-bottom: 4px;
}

.student-card__year {
  display: block;
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}

.student-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #ffd700, #ffb300);
  color: white;
  font-size: 0.8rem;
  font-weight: 700;
}

.student-card__badge--silver {
  background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
}

.student-card__badge--bronze {
  background: linear-gradient(135deg, #cd7f32, #b87333);
}

.student-card__badge--honor {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
}

/* ============================================================
   TESTIMONIALS — Native CSS slider (no Swiper, ~54KB saved)
============================================================ */
.testimonials {
  padding: var(--section-py) 0;
  background: var(--bg-section);
  position: relative;
  contain: layout style;
}

.testimonials__slider {
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  padding-bottom: 60px;
  position: relative;
}

.testimonials__track {
  display: flex;
  transition: transform 0.5s var(--ease-out);
  /* RTL: slides flow right-to-left, translateX positive = next */
}

.testimonial-card {
  flex: 0 0 100%;
  background: var(--bg-card);
  padding: 40px 36px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--duration-normal) var(--ease-out);
  margin: 0 12px;
  box-sizing: border-box;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
}

.testimonial-card__stars {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
}

.testimonial-card__stars i {
  color: var(--accent-400);
  font-size: 1rem;
}

.testimonial-card__text {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--text-secondary);
  margin-bottom: 24px;
  position: relative;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.testimonial-card__author strong {
  display: block;
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.testimonial-card__author span {
  font-size: 0.82rem;
  color: var(--text-tertiary);
}

/* Pagination dots — custom, replaces Swiper pagination */
.testimonials__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
}

.testimonials__dot {
  width: 10px;
  height: 10px;
  border-radius: 5px;
  background: var(--gray-300);
  border: none;
  cursor: pointer;
  transition: width 0.3s var(--ease-out), background 0.3s ease;
  padding: 0;
}

.testimonials__dot.active {
  background: var(--primary-500);
  width: 28px;
}

/* ============================================================
   GALLERY
============================================================ */
.gallery {
  padding: var(--section-py) 0;
  background: var(--bg-section-alt);
  contain: layout style;
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 240px;
  gap: 16px;
}

.gallery__item {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.gallery__item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-xl);
  z-index: 2;
}

.gallery__item--wide {
  grid-column: span 2;
}

.gallery__item--tall {
  grid-row: span 2;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.gallery__item:hover img {
  transform: scale(1.08);
}

.gallery__placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-50), var(--gray-100));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-tertiary);
  border: 2px dashed var(--gray-200);
  border-radius: var(--radius-xl);
  transition: border-color var(--duration-normal) ease, background var(--duration-normal) ease;
}

.gallery__placeholder i {
  font-size: 2rem;
  color: var(--gray-300);
}

.gallery__placeholder span {
  font-weight: 700;
  font-size: 0.9rem;
}

.gallery__placeholder small {
  font-size: 0.75rem;
  color: var(--gray-400);
}

.gallery__placeholder:hover {
  border-color: var(--primary-200);
  background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
}

/* ============================================================
   FAQ
============================================================ */
.faq {
  padding: var(--section-py) 0;
  background: var(--bg-section);
  contain: layout style;
}

.faq__list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq__item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.faq__item:hover {
  border-color: var(--primary-100);
}

.faq__item.active {
  border-color: var(--primary-200);
  box-shadow: var(--shadow-md);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  text-align: right;
  transition: color var(--duration-fast) ease;
  cursor: pointer;
}

.faq__question:hover {
  color: var(--primary-600);
}

.faq__question i {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  transition: transform var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out);
  flex-shrink: 0;
  margin-right: 16px;
}

.faq__item.active .faq__question i {
  transform: rotate(45deg);
  color: var(--primary-500);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
}

.faq__answer p {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.9;
}

/* ============================================================
   CTA — reduced blur for performance
============================================================ */
.cta {
  padding: var(--section-py) 0;
  background: linear-gradient(135deg, var(--primary-700), var(--primary-900));
  position: relative;
  overflow: hidden;
  contain: layout style;
}

.cta__bg-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

/* Reduced blur from 100px→50px, expanded size to compensate */
.cta__shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(50px);
}

.cta__shape--1 {
  width: 500px;
  height: 500px;
  background: rgba(59, 130, 246, 0.3);
  top: -200px;
  right: -100px;
}

.cta__shape--2 {
  width: 400px;
  height: 400px;
  background: rgba(245, 158, 11, 0.15);
  bottom: -150px;
  left: -100px;
}

.cta__inner {
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta__icon {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  font-size: 2rem;
  color: white;
  animation: float-badge 4s ease-in-out infinite;
}

.cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  color: white;
  margin-bottom: 16px;
}

.cta__desc {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: rgba(255, 255, 255, 0.75);
  max-width: 550px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.cta__actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================================
   FOOTER
============================================================ */
.footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 80px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__logo {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  object-fit: cover;
  margin-bottom: 16px;
}

.footer__brand h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  color: white;
  margin-bottom: 12px;
}

.footer__brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
}

.footer__links h4,
.footer__contact h4,
.footer__social h4 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: white;
  margin-bottom: 20px;
  position: relative;
}

.footer__links ul li {
  margin-bottom: 10px;
}

.footer__links ul li a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: color var(--duration-fast) ease, padding-right var(--duration-fast) ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer__links ul li a:hover {
  color: white;
  padding-right: 8px;
}

.footer__contact ul li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer__contact ul li i {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-400);
  flex-shrink: 0;
  font-size: 0.9rem;
}

.footer__contact ul li a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--duration-fast) ease;
}

.footer__contact ul li a:hover {
  color: white;
}

.footer__social-links {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.footer__social-links a {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 1rem;
  transition: background var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

.footer__social-links a:hover {
  background: var(--primary-600);
  color: white;
  transform: translateY(-4px);
  border-color: var(--primary-500);
}

.footer__map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0;
  text-align: center;
}

.footer__bottom p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ============================================================
   WHATSAPP FLOATING BUTTON
============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  left: 28px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: var(--z-whatsapp);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  animation: whatsapp-pulse 2s ease-in-out infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
}

.whatsapp-float__tooltip {
  position: absolute;
  right: calc(100% + 12px);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: var(--gray-900);
  color: white;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transform: translateX(8px);
  transition: opacity var(--duration-fast) ease,
              visibility var(--duration-fast) ease,
              transform var(--duration-fast) ease;
  pointer-events: none;
}

.whatsapp-float:hover .whatsapp-float__tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

@keyframes whatsapp-pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4), 0 0 0 0 rgba(37, 211, 102, 0.3); }
  50% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4), 0 0 0 12px rgba(37, 211, 102, 0); }
}

/* ============================================================
   BACK TO TOP — reduced blur
============================================================ */
.back-to-top {
  position: fixed;
  bottom: 100px;
  left: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  z-index: var(--z-back-top);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              background var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-md);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-500);
  color: white;
  border-color: transparent;
  transform: translateY(-4px);
}

/* ============================================================
   RESPONSIVE — TABLETS
============================================================ */
@media (max-width: 1024px) {
  .navbar__links {
    display: none;
  }

  .navbar__cta {
    display: none;
  }

  .navbar__toggle {
    display: flex;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__stats {
    margin: 0 auto;
  }

  .hero__visual {
    order: -1;
    max-width: 400px;
    margin: 0 auto;
  }

  .hero__float--1 {
    left: 0;
  }

  .hero__float--2 {
    right: 0;
  }

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

  .courses__grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

/* ============================================================
   RESPONSIVE — MOBILE
============================================================ */
@media (max-width: 640px) {
  /* Disable all reveal animations on mobile */
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  /* Disable hero shape animations to save battery */
  .hero__shape {
    animation: none;
  }

  .features__grid {
    grid-template-columns: 1fr;
  }

  .courses__grid {
    grid-template-columns: 1fr;
  }

  .students__grid {
    grid-template-columns: 1fr;
  }

  .hero__stats {
    flex-direction: column;
    gap: 16px;
    padding: 24px;
  }

  .hero__stat {
    padding: 8px 0;
  }

  .hero__stat-divider {
    width: 60px;
    height: 1px;
  }

  .hero__float {
    display: none;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .hero__actions .btn {
    width: 100%;
    max-width: 280px;
  }

  .timeline__line {
    right: 20px;
  }

  .timeline__number {
    right: 2px;
    width: 36px;
    height: 36px;
    font-size: 0.85rem;
  }

  .timeline__item {
    padding-right: 60px;
  }

  .gallery__grid {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 180px;
  }

  .gallery__item--wide {
    grid-column: span 2;
  }

  .gallery__item--tall {
    grid-row: span 1;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cta__actions {
    flex-direction: column;
    align-items: center;
  }

  .cta__actions .btn {
    width: 100%;
    max-width: 300px;
  }

  .whatsapp-float {
    bottom: 20px;
    left: 20px;
    width: 54px;
    height: 54px;
    font-size: 1.5rem;
  }

  .back-to-top {
    bottom: 84px;
    left: 20px;
    width: 42px;
    height: 42px;
  }

  .whatsapp-float__tooltip {
    display: none;
  }
}

/* ============================================================
   LOADING ANIMATION
============================================================ */
.page-loader {
  position: fixed;
  inset: 0;
  background: white;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.page-loader__spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary-500);
  border-radius: 50%;
  animation: loader-spin 0.8s linear infinite;
}

@keyframes loader-spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
   CUSTOM SCROLLBAR
============================================================ */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* ============================================================
   SELECTION
============================================================ */
::selection {
  background: var(--primary-200);
  color: var(--primary-900);
}

/* ============================================================
   PRINT STYLES
============================================================ */
@media print {
  .navbar,
  .whatsapp-float,
  .back-to-top,
  .hero__scroll,
  .mobile-menu {
    display: none !important;
  }
}

/* ============================================================
   REDUCED MOTION — Respect user preferences
============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}