/* ==============================
   CSS Variables & Theme
   ============================== */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: rgba(18, 18, 30, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --border-glass: rgba(255, 255, 255, 0.06);
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #68688a;
  --neon-blue: #00d4ff;
  --neon-blue-dim: rgba(0, 212, 255, 0.15);
  --neon-blue-glow: rgba(0, 212, 255, 0.3);
  --digital-purple: #7b2ff7;
  --digital-purple-dim: rgba(123, 47, 247, 0.15);
  --digital-purple-glow: rgba(123, 47, 247, 0.3);
  --gradient-primary: linear-gradient(135deg, #00d4ff, #7b2ff7);
  --gradient-hero: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(123, 47, 247, 0.05));
  --shadow-neon: 0 0 30px rgba(0, 212, 255, 0.15);
  --shadow-purple: 0 0 30px rgba(123, 47, 247, 0.15);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font: 'Almarai', sans-serif;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul { list-style: none; }

img { max-width: 100%; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ==============================
   Typography
   ============================== */
.section-header {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
  z-index: 1;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  color: var(--neon-blue);
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  backdrop-filter: blur(10px);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-weight: 300;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==============================
   Header / Nav
   ============================== */
#header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

#header.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  padding: 10px 0;
}

#header.scrolled::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 212, 255, 0.03), transparent);
  pointer-events: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

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

.logo-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-sm);
  font-size: 20px;
  color: #fff;
  box-shadow: var(--shadow-neon);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-ar {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
}

.logo-en {
  font-size: 11px;
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.nav-list {
  display: flex;
  gap: 6px;
}

.nav-link {
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  position: relative;
}

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

.nav-link.active {
  color: var(--neon-blue);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.35);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.hamburger span {
  width: 26px;
  height: 2.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
  transform-origin: center;
}

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

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ==============================
   Hero Section
   ============================== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 60px;
  overflow: hidden;
  z-index: 1;
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%2300d4ff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero-gradient {
  position: absolute;
  top: -50%;
  right: -30%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.08), transparent 70%);
  pointer-events: none;
  animation: heroPulse 8s ease-in-out infinite;
}

@keyframes heroPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.2); opacity: 1; }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content { position: relative; z-index: 2; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--neon-blue-dim);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: 50px;
  font-size: 13px;
  color: var(--neon-blue);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out;
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.title-line { display: block; }

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 32px;
  line-height: 1.8;
  font-weight: 300;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 25px rgba(0, 212, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(0, 212, 255, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-glass);
}

.btn-outline:hover {
  border-color: var(--neon-blue);
  background: var(--neon-blue-dim);
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--neon-blue);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 300;
}

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

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

.hero-3d-container {
  position: relative;
  width: 340px;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.torus-ring {
  position: absolute;
  width: 100%;
  height: 100%;
}

.ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid transparent;
  animation: spin3d 8s linear infinite;
}

.ring-1 {
  border-image: linear-gradient(90deg, var(--neon-blue), var(--digital-purple)) 1;
  border: 2px solid;
  border-image: linear-gradient(90deg, var(--neon-blue), var(--digital-purple)) 1;
  -webkit-mask: radial-gradient(circle at 50% 50%, transparent 55%, #000 56%, #000 60%, transparent 61%);
  mask: radial-gradient(circle at 50% 50%, transparent 55%, #000 56%, #000 60%, transparent 61%);
  animation-duration: 8s;
}

.ring-2 {
  width: 75%;
  height: 75%;
  top: 12.5%;
  left: 12.5%;
  border: 2px solid transparent;
  border-top-color: var(--neon-blue);
  border-right-color: var(--digital-purple);
  animation-duration: 6s;
  animation-direction: reverse;
  border-radius: 50%;
}

.ring-3 {
  width: 50%;
  height: 50%;
  top: 25%;
  left: 25%;
  border: 2px solid transparent;
  border-bottom-color: var(--neon-blue);
  border-left-color: var(--digital-purple);
  animation-duration: 10s;
  border-radius: 50%;
}

@keyframes spin3d {
  to { transform: rotate(360deg); }
}

.orbit-dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-blue);
  box-shadow: 0 0 20px var(--neon-blue);
  animation: orbit 6s linear infinite;
}

.dot-1 { animation-duration: 6s; }
.dot-2 {
  width: 6px;
  height: 6px;
  background: var(--digital-purple);
  box-shadow: 0 0 15px var(--digital-purple);
  animation-duration: 8s;
  animation-direction: reverse;
}
.dot-3 {
  width: 5px;
  height: 5px;
  background: #fff;
  box-shadow: 0 0 10px rgba(255,255,255,0.5);
  animation-duration: 4s;
}

@keyframes orbit {
  from { transform: rotate(0deg) translateX(160px) rotate(0deg); }
  to { transform: rotate(360deg) translateX(160px) rotate(-360deg); }
}

.center-glow {
  position: absolute;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--neon-blue-dim);
  box-shadow: 0 0 60px var(--neon-blue-glow), 0 0 120px var(--digital-purple-glow);
  animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; }
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  animation: bounceDown 2s ease-in-out infinite;
  z-index: 2;
}

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

/* ==============================
   About Section
   ============================== */
#about {
  padding: 120px 0;
  position: relative;
  z-index: 1;
}

#about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-blue-dim), transparent);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1rem;
  line-height: 1.9;
  font-weight: 300;
}

.about-text p strong {
  color: var(--text-primary);
  font-weight: 700;
}

.about-values {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.value-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 400;
  color: var(--text-secondary);
  transition: var(--transition);
}

.value-pill:hover {
  border-color: var(--neon-blue);
  color: var(--neon-blue);
  background: var(--neon-blue-dim);
  transform: translateY(-2px);
}

.about-image { display: flex; justify-content: center; }

.about-glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 48px 36px;
  text-align: center;
  max-width: 360px;
  width: 100%;
  transition: var(--transition);
}

.about-glass-card:hover {
  border-color: rgba(0, 212, 255, 0.15);
  box-shadow: var(--shadow-neon);
  transform: translateY(-5px);
}

.about-glass-card .fa-brain {
  font-size: 3rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}

.about-glass-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.about-glass-card > p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 300;
  margin-bottom: 24px;
}

.about-stats-mini {
  display: flex;
  justify-content: center;
  gap: 32px;
}

.about-stats-mini div {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}

.about-stats-mini div span {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==============================
   Services Section
   ============================== */
#services {
  padding: 120px 0;
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
}

#services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--digital-purple-dim), transparent);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.service-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s ease;
}

.service-card:hover::before { transform: scaleX(1); transform-origin: left; }

.service-card:hover {
  border-color: rgba(0, 212, 255, 0.15);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), var(--shadow-neon);
}

.card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--neon-blue-dim);
  border-radius: var(--radius-sm);
  font-size: 24px;
  color: var(--neon-blue);
  margin-bottom: 20px;
  transition: var(--transition);
}

.service-card:hover .card-icon {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-neon);
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: 20px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--neon-blue);
  font-size: 13px;
  font-weight: 700;
  transition: var(--transition);
}

.card-link:hover { gap: 12px; }

/* ==============================
   Features Section
   ============================== */
#features {
  padding: 120px 0;
  position: relative;
  z-index: 1;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  text-align: center;
  padding: 40px 24px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(123, 47, 247, 0.2);
  background: var(--digital-purple-dim);
  box-shadow: var(--shadow-purple);
}

.feature-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: var(--digital-purple-dim);
  border-radius: 50%;
  font-size: 24px;
  color: var(--digital-purple);
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-neon);
}

.feature-card h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.7;
  font-weight: 300;
}

/* ==============================
   Contact Section
   ============================== */
#contact {
  padding: 120px 0;
  position: relative;
  z-index: 1;
  background: var(--bg-secondary);
}

#contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-blue-dim), transparent);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
}

.contact-card:hover {
  border-color: var(--neon-blue-dim);
  transform: translateX(-5px);
}

.contact-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--neon-blue-dim);
  border-radius: var(--radius-sm);
  font-size: 18px;
  color: var(--neon-blue);
  margin-bottom: 12px;
}

.contact-card h4 {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 400;
  margin-bottom: 4px;
}

.contact-card a,
.contact-card p {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.contact-card a:hover { color: var(--neon-blue); }

.contact-social {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.social-link {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 18px;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-neon);
}

/* Contact Form */
.contact-form {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font);
  transition: var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--neon-blue);
  box-shadow: 0 0 0 3px var(--neon-blue-dim);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23a0a0b8' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 16px center;
  padding-left: 40px;
  cursor: pointer;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-btn {
  width: 100%;
  justify-content: center;
  padding: 16px 32px;
  font-size: 16px;
}

.submit-btn i { font-size: 16px; }

/* ==============================
   Footer
   ============================== */
#footer {
  padding: 60px 0 0;
  position: relative;
  z-index: 1;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-glass);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand .logo { margin-bottom: 16px; }

.footer-brand > p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
  font-weight: 300;
}

.footer-links h4,
.footer-newsletter h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

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

.footer-links ul li a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 300;
  transition: var(--transition);
}

.footer-links ul li a:hover {
  color: var(--neon-blue);
  padding-right: 5px;
}

.footer-newsletter p {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 16px;
}

.newsletter-form {
  display: flex;
  gap: 8px;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  transition: var(--transition);
}

.newsletter-form input:focus {
  border-color: var(--neon-blue);
}

.newsletter-form button {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.newsletter-form button:hover {
  box-shadow: var(--shadow-neon);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid var(--border-glass);
  font-size: 13px;
  color: var(--text-muted);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-bottom-links a:hover { color: var(--neon-blue); }

/* ==============================
   Toast
   ============================== */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--neon-blue-dim);
  border-radius: var(--radius-sm);
  color: var(--neon-blue);
  font-size: 14px;
  font-weight: 700;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  z-index: 9999;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast i { font-size: 20px; }

/* ==============================
   Animations
   ============================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ==============================
   Responsive - Tablet
   ============================== */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-desc { margin: 0 auto 32px; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }

  .hero-visual {
    display: none;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-values { justify-content: center; }
  .about-text { text-align: center; }

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

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

  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

/* ==============================
   Responsive - Mobile
   ============================== */
@media (max-width: 768px) {
  :root { --header-height: 64px; }

  .header-cta { display: none; }

  .nav-list {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-left: 1px solid var(--border-glass);
    padding: 100px 32px 32px;
    gap: 4px;
    transition: right 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: 999;
  }

  .nav-list.open { right: 0; }

  .nav-link {
    font-size: 16px;
    padding: 12px 18px;
    display: block;
  }

  .hamburger { display: flex; }

  #header.scrolled { padding: 8px 0; }

  #hero { padding: 100px 0 40px; }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn { justify-content: center; }

  .scroll-indicator { display: none; }

  #about,
  #services,
  #features,
  #contact {
    padding: 80px 0;
  }

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

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

  .contact-form { padding: 24px; }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .footer-brand > p { text-align: center; }

  .footer-links {
    text-align: center;
  }

  .footer-newsletter { text-align: center; }

  .toast {
    right: 16px;
    left: 16px;
    bottom: 16px;
  }
}

/* ==============================
   Responsive - Small Mobile
   ============================== */
@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .section-header { margin-bottom: 40px; }

  .section-title {
    font-size: 1.6rem;
  }

  #hero { padding: 80px 0 32px; }

  .hero-title { font-size: 1.6rem; }

  .about-glass-card { padding: 32px 24px; }

  .service-card { padding: 28px 20px; }

  .contact-form { padding: 20px; }
}