/* ===================================================
   KRYPTONIT — style.css
   Design: Corporate IT Premium · Light Blue + Clean White
   Fonts: Source Sans 3
   =================================================== */

/* ── VARIABLES ── */
:root {
  /* Light backgrounds */
  --navy-900: #f8fafc;
  --navy-800: #ffffff;
  --navy-700: #f1f5f9;
  --navy-600: #e2e8f0;
  --navy-500: #cbd5e1;

  /* Brand blues */
  --blue-600: #1d4ed8;
  --blue-500: #2563eb;
  --blue-400: #3b82f6;
  --blue-300: #60a5fa;
  --blue-100: #dbeafe;

  --accent: #2563eb;
  --accent-glow: rgba(37, 99, 235, 0.18);
  --accent-subtle: rgba(37, 99, 235, 0.08);

  --white: #ffffff;
  --off-white: #f8fafc;
  --text-primary: #0f172a;
  --text-muted: #64748b;
  --text-body: #334155;

  --border: rgba(15, 23, 42, 0.10);
  --border-hover: rgba(37, 99, 235, 0.28);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --shadow-card: 0 12px 34px rgba(15, 23, 42, 0.07);
  --shadow-glow: 0 20px 45px rgba(37, 99, 235, 0.12);

  --font-display: 'Source Sans 3', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;

  --max-w: 1320px;
  --header-h: 72px;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--navy-900);
  color: var(--text-body);
  line-height: 1.65;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-400);
  margin-bottom: 16px;
}
.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--blue-400);
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 20px;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
  color: var(--white);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.22);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(37, 99, 235, 0.28);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--blue-400);
  color: var(--blue-300);
  background: var(--accent-subtle);
  transform: translateY(-2px);
}

.btn-full { width: 100%; justify-content: center; }

/* ── HEADER ── */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
}
#header.scrolled {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.logo-placeholder { display: flex; align-items: center; }
.logo-text-fallback {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.04em;
}

.nav ul {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav a {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav a:hover { color: var(--text-primary); background: var(--accent-subtle); }

.nav-cta {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-400)) !important;
  color: var(--white) !important;
  padding: 9px 20px !important;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.18);
}
.nav-cta:hover {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-300)) !important;
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(37, 99, 235, 0.24) !important;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

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

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.18) 0%, transparent 70%);
  top: -100px; left: -100px;
  animation: float 8s ease-in-out infinite;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.18) 0%, transparent 70%);
  bottom: 0; right: -80px;
  animation: float 10s ease-in-out infinite reverse;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
  top: 40%; left: 60%;
  animation: float 12s ease-in-out infinite 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
  padding-top: 60px;
  padding-bottom: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.18);
  color: var(--blue-300);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--blue-400);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--white);
  margin-bottom: 28px;
}
.hero-title .line-reveal { display: block; }

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 600px;
  margin-bottom: 40px;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat span {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}
.stat-sep {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* Reveal animations */
.line-reveal {
  opacity: 0;
  transform: translateY(20px);
  animation: revealUp 0.7s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.delay-1 { animation-delay: 0.12s; }
.delay-2 { animation-delay: 0.24s; }
.delay-3 { animation-delay: 0.36s; }
.delay-4 { animation-delay: 0.48s; }

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

.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
}
.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--blue-400), transparent);
  margin: 0 auto;
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.4; transform: scaleY(0.6); }
}

/* ── IA SECTION ── */
.ia-section {
  padding: 120px 0;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 50%, #ffffff 100%);
  position: relative;
  overflow: hidden;
}
.ia-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px; height: 400px;
  background: radial-gradient(ellipse, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.ia-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.ia-visual {
  position: relative;
  min-height: 360px;
}

.ia-card-big {
  background: linear-gradient(145deg, #ffffff, #f1f5f9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.ia-card-big::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-600), var(--blue-300), transparent);
}

.ia-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--blue-300);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.ia-icon-chip {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  background: var(--accent-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--blue-400);
}

.ia-card-stat {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 8px;
}
.ia-card-label {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.ia-bar-container {
  height: 6px;
  background: var(--navy-900);
  border-radius: 3px;
  overflow: hidden;
}
.ia-bar {
  height: 100%;
  width: var(--w, 0%);
  background: linear-gradient(90deg, var(--blue-600), var(--blue-300));
  border-radius: 3px;
  animation: barGrow 1.5s cubic-bezier(0.4, 0, 0.2, 1) forwards 0.5s;
  transform-origin: left;
  transform: scaleX(0);
}
@keyframes barGrow {
  to { transform: scaleX(1); }
}

.ia-card-small {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--navy-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 0.88rem;
  color: var(--text-body);
  margin-top: 14px;
  color: var(--blue-300);
}
.ia-card-small svg { flex-shrink: 0; color: var(--blue-400); }
.ia-card-small p { font-size: 0.86rem; color: var(--text-body); }

.ia-card-small--right { margin-left: 24px; }

.ia-text { }

.ia-list {
  margin: 24px 0 36px;
}
.ia-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-body);
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.ia-list li:last-child { border-bottom: none; }
.ia-list-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  min-width: 22px;
  background: rgba(37, 99, 235, 0.10);
  border-radius: 50%;
  color: var(--blue-400);
  margin-top: 1px;
}

/* ── SERVICES ── */
.services {
  padding: 120px 0;
  background: var(--navy-900);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.service-card {
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 127, 232, 0.06), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.service-card:hover::before { opacity: 1; }

.service-card--featured {
  grid-column: span 2;
  background: linear-gradient(145deg, #ffffff, #eff6ff);
  border-color: rgba(37, 99, 235, 0.25);
}
.service-card--featured::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-600), var(--blue-300));
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  background: var(--accent-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--blue-400);
  margin-bottom: 18px;
  transition: background var(--transition), border-color var(--transition);
}
.service-card:hover .service-icon {
  background: rgba(37, 99, 235, 0.12);
  border-color: rgba(37, 99, 235, 0.25);
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.service-tag {
  display: inline-block;
  margin-top: 16px;
  padding: 4px 12px;
  background: rgba(37, 99, 235, 0.10);
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 100px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--blue-300);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ── POURQUOI ── */
.pourquoi {
  padding: 120px 0;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
}

.pourquoi-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 80px;
  align-items: start;
}

.pourquoi-text p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
  margin-top: 4px;
}

.pillars { display: flex; flex-direction: column; gap: 0; }

.pillar {
  display: flex;
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}
.pillar:first-child { padding-top: 0; }
.pillar:last-child { border-bottom: none; padding-bottom: 0; }
.pillar:hover { padding-left: 8px; }

.pillar-num {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--blue-500);
  letter-spacing: 0.04em;
  min-width: 28px;
  padding-top: 4px;
}

.pillar-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.pillar-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ── MÉTHODE ── */
.methode {
  padding: 120px 0;
  background: var(--navy-900);
}

.steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 0;
  align-items: start;
}

.step {
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
}
.step:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.step-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  background: var(--accent-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--blue-400);
  margin: 0 auto 12px;
}
.step-num {
  font-family: var(--font-display);
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--blue-500);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.step h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.step p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--blue-600);
  padding: 0 12px;
  padding-top: 48px;
}

/* ── CHIFFRES ── */
.chiffres {
  padding: 80px 0;
  background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.chiffres::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 100% at 50% 50%, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
}

.chiffres-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
}

.chiffre {
  text-align: center;
  padding: 20px;
  position: relative;
}
.chiffre::after {
  content: '';
  position: absolute;
  right: 0; top: 20%; bottom: 20%;
  width: 1px;
  background: var(--border);
}
.chiffre:last-child::after { display: none; }

.chiffre-num {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--white);
  display: inline-block;
  line-height: 1;
}
.chiffre-unit {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--blue-400);
}
.chiffre p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ── CONTACT ── */
.contact {
  padding: 120px 0;
  background: var(--navy-900);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contact-text p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 32px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-body);
  font-size: 0.95rem;
  transition: color var(--transition);
  padding: 12px 16px;
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.contact-link:hover { color: var(--blue-300); border-color: var(--border-hover); }
.contact-link svg { color: var(--blue-400); flex-shrink: 0; }

.contact-form {
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--navy-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 0.93rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--navy-500); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}
.form-group select option { background: var(--navy-700); }
.form-group textarea { resize: vertical; min-height: 110px; }

.form-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 12px;
}

.form-success {
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(22, 163, 74, 0.08);
  border: 1px solid rgba(22, 163, 74, 0.18);
  border-radius: var(--radius-md);
  color: #15803d;
  font-size: 0.9rem;
  text-align: center;
}

/* ── FOOTER ── */
.footer {
  background: var(--navy-800);
  border-top: 1px solid var(--border);
}

.footer-top {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 64px;
  padding: 64px 0 48px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 16px;
  max-width: 260px;
}
.footer-logo-fallback {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.04em;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h5 {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--blue-300); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom a { color: var(--blue-400); }
.footer-bottom a:hover { color: var(--blue-300); }

/* ── SCROLL REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card--featured { grid-column: span 2; }
  .steps { grid-template-columns: 1fr 1fr; gap: 20px; }
  .step-arrow { display: none; }
  .ia-grid { grid-template-columns: 1fr; gap: 48px; }
  .pourquoi-grid { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .chiffres-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .nav.open {
    display: flex;
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0; bottom: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 999;
  }
  .nav.open ul { flex-direction: column; gap: 4px; }
  .nav.open a { font-size: 1.2rem; padding: 14px 28px; }
  .burger { display: flex; }

  .hero-title { font-size: clamp(2.2rem, 8vw, 3.5rem); }
  .hero-ctas { flex-direction: column; }
  .hero-stats { gap: 20px; }

  .services-grid { grid-template-columns: 1fr; }
  .service-card--featured { grid-column: span 1; }
  .steps { grid-template-columns: 1fr; }

  .chiffres-grid { grid-template-columns: repeat(2, 1fr); }
  .chiffre::after { display: none; }

  .contact-form { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }

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

  .section-title { font-size: 1.75rem; }
}

@media (max-width: 480px) {
  .chiffres-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 16px; }
  .stat-sep { display: none; }
}


/* ── LIGHT THEME OVERRIDES ── */
.hero {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.hero-title,
.stat strong,
.chiffre-num,
.logo-text-fallback,
.footer-logo-fallback {
  color: var(--text-primary);
}

.service-card,
.step,
.contact-form,
.contact-link,
.ia-card-big,
.ia-card-small {
  background: #ffffff;
  box-shadow: var(--shadow-card);
}

.ia-card-small p,
.service-card p,
.step p,
.pillar-content p,
.contact-text p,
.footer-brand p,
.footer-col a,
.footer-bottom,
.chiffre p {
  color: var(--text-muted);
}

.ia-bar-container {
  background: #e2e8f0;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: #ffffff;
  color: var(--text-primary);
  border-color: var(--border);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #94a3b8;
}

.form-group select option {
  background: #ffffff;
  color: var(--text-primary);
}

.footer {
  background: #f8fafc;
  color: var(--text-body);
}

.footer-col h5 {
  color: var(--text-primary);
}

.footer-bottom a,
.footer-col a:hover {
  color: var(--blue-600);
}

@media (max-width: 768px) {
  .nav.open {
    background: rgba(255, 255, 255, 0.97);
  }
}