/* ============================================
   ARX Protection — Style principal
   Univers : sombre, sobre, premium, discret
   ============================================ */

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

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1c1c1c;
  --text-primary: #e8e4df;
  --text-secondary: #9a9590;
  --text-muted: #6b6560;
  --accent: #c4a265;
  --accent-light: #d4b87a;
  --accent-dark: #a68945;
  --border: #222222;
  --border-light: #2a2a2a;
  --white: #faf8f5;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1120px;
  --transition: 0.3s ease;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
}

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

a:hover {
  color: var(--accent-light);
}

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

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 300;
  letter-spacing: 0.02em;
  line-height: 1.3;
  color: var(--accent);
}

h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: 0.06em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 1.5rem;
  letter-spacing: 0.04em;
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  margin-bottom: 1rem;
  color: var(--accent);
  font-weight: 400;
  letter-spacing: 0.03em;
}

p {
  margin-bottom: 1.2rem;
  color: var(--text-secondary);
  font-weight: 300;
  font-size: 0.95rem;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
}

.section-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo-img {
  height: 28px;
  width: auto;
  max-width: 180px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

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

.nav-contact-btn {
  font-size: 0.78rem !important;
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--accent);
  color: var(--accent) !important;
  letter-spacing: 0.08em !important;
  transition: all var(--transition) !important;
}

.nav-contact-btn:hover {
  background: var(--accent);
  color: var(--bg-primary) !important;
}

.nav-contact-btn::after {
  display: none !important;
}

/* Mobile menu */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all var(--transition);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 2rem 6rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 30%, rgba(196, 162, 101, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

/* Hero éditorial : aligné gauche, resserré */
.hero-editorial {
  min-height: 75vh;
  align-items: flex-end;
  justify-content: flex-start;
  text-align: left;
  padding: 0 0 5rem;
}

.hero-editorial .hero-content {
  max-width: 700px;
}

.hero-editorial h1 {
  margin-bottom: 1rem;
  color: var(--accent);
}

.hero-editorial .hero-proof {
  margin-top: 0;
  margin-bottom: 1.8rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  opacity: 0.7;
}

.hero-editorial .btn {
  margin-top: 0;
}

.hero-logo-img {
  max-width: 320px;
  width: 80%;
  height: auto;
  margin: 0 auto 2.5rem;
  display: block;
}

.hero-kicker {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  font-weight: 300;
}

.hero h1 {
  margin-bottom: 1.5rem;
  color: var(--accent);
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  font-weight: 300;
  line-height: 1.8;
}

.hero-signature {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 2.5rem;
  font-weight: 300;
}

.hero-proof {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 1.2rem;
  font-weight: 300;
  letter-spacing: 0.05em;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.85rem 2.2rem;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  font-family: var(--font-body);
}

.btn-primary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: var(--accent);
  color: var(--bg-primary);
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* --- Section: Intro / Generic --- */
.intro-section {
  text-align: center;
}

.intro-section p {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1rem;
  line-height: 1.9;
}

/* --- Section: Split 2 colonnes --- */
.split-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.split-left h2 {
  margin-bottom: 0;
  line-height: 1.4;
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
}

.split-right p {
  font-size: 0.95rem;
  line-height: 2;
  color: var(--text-primary);
}

/* --- Section: Trois piliers / Grille --- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2.5rem 2rem;
  transition: all var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
}

.card h3 {
  font-size: 1rem;
  margin-bottom: 0.8rem;
}

.card p {
  font-size: 0.88rem;
  line-height: 1.8;
}

.card-number {
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  margin-bottom: 1.2rem;
  font-weight: 400;
}

/* --- Section: Différence --- */
.difference-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.difference-content {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.difference-content blockquote {
  font-size: 1.2rem;
  color: var(--accent);
  font-weight: 300;
  font-style: italic;
  letter-spacing: 0.02em;
  line-height: 1.7;
  margin: 2rem 0;
  padding: 0;
  border: none;
}

/* --- Section: Expérience --- */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  align-items: center;
  margin-top: 2rem;
}

.experience-stats {
  display: flex;
  gap: 3rem;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 200;
  color: var(--accent);
  letter-spacing: 0.02em;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* --- Section: CTA --- */
.cta-section {
  text-align: center;
  padding: 3.5rem 0;
}

.cta-section h2 {
  margin-bottom: 1rem;
  color: var(--accent);
}

.cta-section p {
  max-width: 480px;
  margin: 0 auto 2.5rem;
}

/* --- Page Header --- */
.page-header {
  padding: 10rem 0 4rem;
  text-align: center;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 20%, rgba(196, 162, 101, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.page-header h1 {
  margin-bottom: 1rem;
  color: var(--accent);
}

.page-header p {
  max-width: 560px;
  margin: 0 auto;
  font-size: 1rem;
}

.page-header-small {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.8rem;
}

/* --- Page Content --- */
.page-content {
  padding: 4rem 0 6rem;
}

.page-content .content-block {
  max-width: 700px;
  margin: 0 auto 4rem;
}

.page-content .content-block:last-child {
  margin-bottom: 0;
}

.content-block h2 {
  margin-bottom: 1.2rem;
  color: var(--accent);
}

.content-block p {
  font-size: 0.95rem;
  line-height: 1.9;
}

/* Approche page list */
.approach-pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-top: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.pillar {
  padding-left: 1.5rem;
  border-left: 1px solid var(--accent);
}

.pillar h3 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
}

.pillar p {
  font-size: 0.92rem;
  line-height: 1.8;
}

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h3 {
  margin-bottom: 1.5rem;
}

.contact-info p {
  line-height: 1.9;
}

.contact-methods {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color var(--transition);
}

.contact-method:hover {
  color: var(--accent);
}

.contact-method svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  font-weight: 400;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 300;
  transition: border-color var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  padding: 0.9rem;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  font-family: var(--font-body);
  transition: all var(--transition);
}

.form-submit:hover {
  background: var(--accent);
  color: var(--bg-primary);
}

.form-confidentiality {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-left {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-legal {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  font-size: 0.68rem;
  color: var(--text-secondary);
  line-height: 1.7;
  opacity: 0.85;
  text-align: center;
  letter-spacing: 0.02em;
}

/* --- Legal pages --- */
.legal-content {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 0 4rem;
}

.legal-content h2 {
  font-size: 1.2rem;
  margin-top: 2.5rem;
  margin-bottom: 0.8rem;
}

.legal-content p,
.legal-content li {
  font-size: 0.88rem;
  line-height: 1.8;
}

.legal-content ul {
  list-style: none;
  padding-left: 1rem;
  margin-bottom: 1.2rem;
}

.legal-content ul li::before {
  content: '—';
  color: var(--accent);
  margin-right: 0.5rem;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .split-block {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .experience-stats {
    justify-content: center;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 10, 0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: 90vh;
    padding: 7rem 1.5rem 4rem;
  }

  .hero-editorial {
    min-height: 70vh;
    text-align: left;
    padding: 0 0 3rem;
  }

  section {
    padding: 4rem 0;
  }

  .page-header {
    padding: 8rem 0 3rem;
  }

  .container {
    padding: 0 1.5rem;
  }

  .contact-form {
    padding: 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Utility --- */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }