/* ═══════════════════════════════════════════════════════════════════════════
   PULAARKU — Site Web Premium
   Agence de Communication | Régie Publicitaire | Événementiel
   Abidjan, Côte d'Ivoire
   ═══════════════════════════════════════════════════════════════════════════ */

/* ═══════════ 1. DESIGN SYSTEM / CUSTOM PROPERTIES ═══════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

:root {
  /* Brand Colors */
  --color-primary: #b5191a;
  --color-primary-dark: #910e0f;
  --color-accent: #ed7b2e;
  --color-white: #ffffff;
  --color-dark: #1a1a2e;
  --color-bg: #f8f6f3;
  --color-gray: #6b7280;
  --color-gray-light: #e5e7eb;
  --color-text: #333333;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  --gradient-dark: linear-gradient(135deg, rgba(26,26,46,0.95) 0%, rgba(145,14,15,0.6) 100%);
  --gradient-hero: linear-gradient(180deg, rgba(26,26,46,0.7) 0%, rgba(26,26,46,0.4) 40%, rgba(26,26,46,0.8) 100%);

  /* Glass */
  --glass-bg: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.12);
  --glass-bg-light: rgba(255,255,255,0.85);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --text-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.8rem);
  --text-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.9rem);
  --text-base: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
  --text-lg: clamp(1.1rem, 1rem + 0.5vw, 1.3rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.6rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(1.8rem, 1.4rem + 2vw, 2.5rem);
  --text-4xl: clamp(2.2rem, 1.6rem + 3vw, 3.5rem);
  --text-5xl: clamp(2.8rem, 2rem + 4vw, 4.5rem);

  /* Spacing */
  --section-padding: clamp(4rem, 8vw, 7rem);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.15);
  --shadow-glow: 0 4px 20px rgba(181,25,26,0.3);

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.2s var(--ease);
  --transition: 0.35s var(--ease);
  --transition-slow: 0.5s var(--ease);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
}

/* ═══════════ 2. RESET & BASE ═══════════ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-dark);
}

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

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

ul, ol { list-style: none; }

button, input, textarea, select {
  font: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: transparent;
}

::selection {
  background: var(--color-primary);
  color: var(--color-white);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--color-primary-dark); }

/* ═══════════ 3. UTILITIES ═══════════ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-center { text-align: center; }
.text-accent { color: var(--color-primary); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ═══════════ 4. SECTION HEADERS ═══════════ */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-overline {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  position: relative;
  display: inline-block;
  padding-bottom: 0.75rem;
  margin-bottom: 0.5rem;
}

.text-center .section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-gray);
  max-width: 600px;
  margin: 0.75rem auto 0;
}

/* ═══════════ 5. BUTTONS ═══════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-base);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  border: none;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: var(--text-lg);
}

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

.btn-primary:hover {
  box-shadow: 0 6px 30px rgba(181,25,26,0.4);
}

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

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

.btn-ghost {
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.25);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.4);
}

.btn-submit {
  width: 100%;
}

.btn-submit.success {
  background: #22c55e;
  box-shadow: 0 4px 20px rgba(34,197,94,0.3);
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* ═══════════ 6. PRELOADER ═══════════ */
.preloader {
  position: fixed;
  inset: 0;
  background: var(--color-dark);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.fade-out {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-inner {
  text-align: center;
}

.preloader-logo {
  width: 160px;
  margin-bottom: 1.5rem;
  animation: pulse-logo 1.5s ease-in-out infinite;
}

.preloader-spinner {
  width: 40px;
  height: 40px;
  margin: 0 auto;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ═══════════ 7. HEADER / NAVIGATION ═══════════ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all var(--transition);
}

.header.scrolled {
  padding: 0.5rem 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo img {
  height: 40px;
  width: auto;
  transition: var(--transition);
  border-radius: var(--radius-sm);
}

.footer-logo {
  border-radius: var(--radius-sm);
}

.preloader-logo {
  border-radius: var(--radius-md);
}

.main-nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: var(--text-sm);
  color: var(--color-white);
  padding: 0.5rem 0;
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.header.scrolled .nav-link {
  color: var(--color-dark);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-nav-cta {
  padding: 0.6rem 1.5rem;
  font-size: var(--text-sm);
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-full);
  padding: 3px;
}

.header.scrolled .lang-switcher {
  background: rgba(0,0,0,0.05);
  border-color: rgba(0,0,0,0.08);
}

.lang-btn {
  padding: 4px 12px;
  font-size: var(--text-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: rgba(255,255,255,0.7);
}

.header.scrolled .lang-btn {
  color: var(--color-gray);
}

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

/* Hamburger */
.hamburger {
  display: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  margin: 6px 0;
  transition: all var(--transition);
  border-radius: 2px;
}

.header.scrolled .hamburger-line {
  background: var(--color-dark);
}

.hamburger.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}
.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
}
.hamburger.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Menu */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  transition: opacity var(--transition);
}

.mobile-overlay.active {
  display: block;
  opacity: 1;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 300px;
  height: 100vh;
  background: var(--color-dark);
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  transition: right var(--transition);
  padding: 2rem;
}

.mobile-menu.active {
  right: 0;
}

.mobile-nav-link {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-white);
  transition: color var(--transition-fast);
}

.mobile-nav-link:hover {
  color: var(--color-accent);
}

.mobile-lang-switcher {
  display: flex;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  padding: 3px;
  margin-top: 1rem;
}

.mobile-lang-switcher .lang-btn {
  color: rgba(255,255,255,0.7);
}

.mobile-cta {
  width: 100%;
  margin-top: 0.5rem;
}

/* ═══════════ 8. HERO SECTION ═══════════ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  overflow: hidden;
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 850px;
  padding-bottom: 6rem;
}

.hero-overline {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.typing-text {
  color: var(--color-accent);
  display: inline;
}

.typing-cursor {
  color: var(--color-accent);
  animation: blink 0.8s step-end infinite;
}

.hero-subtitle {
  font-size: var(--text-lg);
  opacity: 0.85;
  max-width: 650px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Hero Stats Bar */
.hero-stats {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 2;
  background: rgba(26,26,46,0.85);
  backdrop-filter: blur(16px);
  border-top: 1px solid rgba(255,255,255,0.08);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem 1rem;
}

.counter-value {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-accent);
  display: block;
}

.stat-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.7;
  color: var(--color-white);
  margin-top: 0.25rem;
}

/* ═══════════ 9. ABOUT SECTION ═══════════ */
.section-about {
  background: var(--color-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-content .section-header {
  text-align: left;
  margin-bottom: 1.5rem;
}

.about-content .section-title::after {
  display: none;
}

.about-text {
  font-size: var(--text-base);
  color: var(--color-gray);
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

.about-mission {
  background: var(--color-bg);
  border-left: 4px solid var(--color-primary);
  padding: 1.5rem 2rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
}

.about-mission h3 {
  font-size: var(--text-lg);
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.about-mission p {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.8;
}

.about-image-wrapper {
  position: relative;
}

.about-image-wrapper img {
  border-radius: var(--radius-lg);
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  box-shadow: var(--shadow-lg);
}

.about-image-accent {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  width: 100%;
  height: 100%;
  border: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  z-index: -1;
  transition: all var(--transition);
}

.about-image-wrapper:hover .about-image-accent {
  top: 1rem;
  left: 1rem;
}

/* ═══════════ 10. SERVICES SECTION ═══════════ */
.section-services {
  background: var(--color-bg);
}

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

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  cursor: default;
}

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

.service-image {
  position: relative;
  overflow: hidden;
  height: 220px;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-image img {
  transform: scale(1.08);
}

.service-icon {
  position: absolute;
  bottom: -20px;
  right: 20px;
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: var(--shadow-glow);
  z-index: 2;
  transition: transform var(--transition);
}

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

.service-content {
  padding: 2rem 1.5rem 1.5rem;
}

.service-title {
  font-size: var(--text-xl);
  margin-bottom: 0.75rem;
}

.service-text {
  font-size: var(--text-sm);
  color: var(--color-gray);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.service-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap var(--transition);
}

.service-link:hover {
  gap: 1rem;
  color: var(--color-primary-dark);
}

.service-link span {
  transition: transform var(--transition);
}

.service-link:hover span {
  transform: translateX(4px);
}

/* ═══════════ 11. NETWORK SECTION ═══════════ */
.section-network {
  background: var(--color-white);
}

.network-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.city-card {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  transition: all var(--transition);
  cursor: default;
  border: 1px solid transparent;
}

.city-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.city-dot {
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  margin: 0 auto 1rem;
  position: relative;
}

.city-dot::after {
  content: '';
  position: absolute;
  inset: -4px;
  border: 2px solid rgba(181,25,26,0.3);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

.city-name {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.city-desc {
  font-size: var(--text-sm);
  color: var(--color-gray);
}

.network-formats {
  text-align: center;
}

.formats-title {
  font-size: var(--text-xl);
  margin-bottom: 1.5rem;
}

.formats-list {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.format-badge {
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-base);
  transition: transform var(--transition);
}

.format-badge:hover {
  transform: scale(1.05);
}

/* ═══════════ 12. REALISATIONS / CAROUSEL ═══════════ */
.section-realisations {
  background: var(--color-bg);
}

.carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.carousel-track {
  display: flex;
  transition: transform 0.6s var(--ease);
}

.carousel-slide {
  min-width: 100%;
  position: relative;
}

.carousel-slide img {
  width: 100%;
  height: 450px;
  object-fit: cover;
}

.carousel-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 3rem 2rem 2rem;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
  color: var(--color-white);
}

.carousel-caption h3 {
  font-size: var(--text-2xl);
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.carousel-caption p {
  font-size: var(--text-sm);
  opacity: 0.85;
}

.carousel-prev,
.carousel-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--color-dark);
  box-shadow: var(--shadow-sm);
  z-index: 3;
}

.carousel-prev { left: 1rem; }
.carousel-next { right: 1rem; }

.carousel-prev:hover,
.carousel-next:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.carousel-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 3;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.carousel-dot.active {
  background: var(--color-white);
  width: 28px;
  border-radius: 5px;
}

/* ═══════════ 13. CLIENTS SECTION ═══════════ */
.section-clients {
  background: var(--color-white);
  overflow: hidden;
}

.clients-track {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.clients-marquee {
  display: flex;
  gap: 2rem;
  animation: marquee 25s linear infinite;
  width: max-content;
}

.client-logo {
  flex-shrink: 0;
  width: 180px;
  height: 100px;
  border-radius: var(--radius-md);
  overflow: hidden;
  filter: grayscale(100%) opacity(0.6);
  transition: all var(--transition);
}

.client-logo:hover {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.05);
}

.client-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ═══════════ 14. CONTACT SECTION ═══════════ */
.section-contact {
  background: var(--color-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-form-wrapper {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.form-group {
  position: relative;
}

.form-input {
  width: 100%;
  padding: 1rem 0 0.5rem;
  border-bottom: 2px solid var(--color-gray-light);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast);
  background: transparent;
}

.form-input:focus {
  border-bottom-color: var(--color-primary);
}

.form-label {
  position: absolute;
  top: 1rem;
  left: 0;
  font-size: var(--text-base);
  color: var(--color-gray);
  pointer-events: none;
  transition: all var(--transition-fast);
}

.form-input:focus ~ .form-label,
.form-input.has-value ~ .form-label,
.form-select ~ .form-label {
  top: -0.5rem;
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: 600;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-select {
  cursor: pointer;
  appearance: none;
  padding-right: 2rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
}

.form-error {
  display: none;
  font-size: var(--text-xs);
  color: #ef4444;
  margin-top: 0.25rem;
}

.form-group.error .form-input {
  border-bottom-color: #ef4444;
}

.form-group.error .form-error {
  display: block;
}

/* Contact Info */
.contact-info-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-info-card {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.contact-info-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.contact-info-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.contact-info-card h4 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.contact-info-card p,
.contact-info-card a {
  font-size: var(--text-sm);
  color: var(--color-gray);
  line-height: 1.6;
}

.contact-info-card a:hover {
  color: var(--color-primary);
}

.contact-map {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

/* ═══════════ 15. FOOTER ═══════════ */
.footer {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 5rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-logo {
  margin-bottom: 1rem;
}

.footer-about {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: all var(--transition);
}

.social-link:hover {
  background: var(--color-primary);
  transform: translateY(-3px);
}

.footer-heading {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--color-white);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-contact svg {
  flex-shrink: 0;
  color: var(--color-accent);
}

.footer-contact li {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1.5rem 0;
  text-align: center;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.4);
}

/* ═══════════ 16. BACK TO TOP ═══════════ */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  box-shadow: var(--shadow-glow);
}

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

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 30px rgba(181,25,26,0.5);
}

/* ═══════════ 17. ANIMATIONS ═══════════ */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes pulse-logo {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(0.95); }
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0; }
}

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

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Reveal on Scroll */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

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

.reveal-child {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-child.active {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════ 18. RESPONSIVE ═══════════ */

/* Tablet */
@media (max-width: 1024px) {
  .main-nav { gap: 1.25rem; }
  .btn-nav-cta { display: none; }
  .about-grid { gap: 2.5rem; }
  .services-grid { gap: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

/* Mobile */
@media (max-width: 768px) {
  .main-nav { display: none; }
  .header-actions { display: none; }
  .hamburger { display: block; }

  .hero { min-height: 100vh; }
  .hero-content { padding-bottom: 8rem; }
  .hero-title { font-size: var(--text-4xl); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { padding: 1rem 0.5rem; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .about-image { order: -1; }
  .about-content .section-header { text-align: center; }

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

  .carousel-slide img { height: 300px; }
  .carousel-prev, .carousel-next { width: 36px; height: 36px; }

  .contact-grid { grid-template-columns: 1fr; }
  .contact-form-wrapper { padding: 1.5rem; }

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

/* Small Mobile */
@media (max-width: 480px) {
  .hero-title { font-size: var(--text-3xl); }
  .hero-buttons { flex-direction: column; width: 100%; }
  .hero-buttons .btn { width: 100%; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 0; }
  .network-grid { grid-template-columns: 1fr; }
  .formats-list { flex-direction: column; align-items: center; }
  .carousel-slide img { height: 220px; }
}

/* Modal Plaquette */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  backdrop-filter: blur(5px);
}
.modal-overlay.show {
  opacity: 1;
  visibility: visible;
}
.modal-content {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 95%;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
  text-align: center;
}
.modal-overlay.show .modal-content {
  transform: translateY(0);
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-gray);
  padding: 0.5rem;
  border-radius: 50%;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.modal-close:hover {
  background-color: rgba(0,0,0,0.05);
  color: var(--color-primary);
}
.modal-header h2 {
  color: var(--color-primary);
  margin-bottom: 1rem;
  font-size: var(--text-2xl);
}
.modal-header p {
  color: var(--color-gray);
  margin-bottom: 2rem;
  line-height: 1.6;
}