/* ==========================================================================
   AINEMIND — Design system "Antigravité"
   Fond noir, accent bleu, typo bold sans-serif. Modifie les couleurs et
   polices ici (section "TOKENS") pour tout changer sur le site en une fois.
   ========================================================================== */

/* ---- TOKENS ---- */
:root {
  /* Couleurs neutres */
  --bg: #000000;
  --bg-alt: #0A0A0A;
  --surface: #111214;
  --ink: #FFFFFF;
  --ink-soft: rgba(255, 255, 255, 0.72);
  --ink-mute: rgba(255, 255, 255, 0.45);
  --border: rgba(255, 255, 255, 0.12);

  /* Couleur d'accent (change ici pour changer toute l'identité) */
  --accent: #4285F4;
  --accent-dark: #659CF2;
  --accent-light: rgba(66, 133, 244, 0.14);
  --accent-contrast: #FFFFFF;

  --danger: #FF6B57;

  /* Typo */
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Rayons / ombres */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);

  /* Rythme d'espacement (4/8px) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 128px;

  --container: 1180px;
  --pad-inline: 20px;

  --dur-fast: 150ms;
  --dur-base: 250ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (min-width: 768px) {
  :root { --pad-inline: 40px; }
}
@media (min-width: 1200px) {
  :root { --pad-inline: 64px; }
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; margin: 0; padding: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
input, textarea, select { font: inherit; }

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad-inline);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  background: var(--ink);
  color: var(--bg);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  z-index: 200;
  transition: top var(--dur-base) var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---- Type scale ---- */
.eyebrow {
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 7px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(6px);
}
.eyebrow::before { content: none; }

h1, .h1 { font-size: clamp(2.5rem, 6vw, 4.75rem); letter-spacing: -0.03em; }
h2, .h2 { font-size: clamp(1.75rem, 3.6vw, 2.75rem); }
h3, .h3 { font-size: clamp(1.25rem, 2.2vw, 1.6rem); }

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--ink-soft);
  max-width: 60ch;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 15px 28px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
  min-height: 48px;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--ink);
  color: #000000;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--accent-dark); color: #000000; transform: scale(1.03); box-shadow: var(--shadow-md); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  border-color: var(--border);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { border-color: var(--ink); background: rgba(255, 255, 255, 0.08); }
.btn-lg { padding: 18px 34px; font-size: 16px; }
.btn-block { width: 100%; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--sp-3);
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 20px;
  color: var(--ink);
}
.logo .dot { color: var(--accent); }

.main-nav { display: none; }
.main-nav ul { display: flex; align-items: center; gap: var(--sp-6); }
.main-nav a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color var(--dur-fast) var(--ease);
  padding-block: var(--sp-1);
  position: relative;
}
.main-nav a:hover { color: var(--ink); }
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease);
}
.main-nav a:hover::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: var(--sp-4); }
.header-actions .btn-primary { display: none; }

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.nav-toggle svg { width: 20px; height: 20px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.mobile-nav {
  position: fixed;
  inset: 0;
  top: 65px;
  background: var(--bg);
  z-index: 90;
  padding: var(--sp-6) var(--pad-inline);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease), transform var(--dur-base) var(--ease), visibility var(--dur-base);
  overflow-y: auto;
}
.mobile-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-nav ul { display: flex; flex-direction: column; gap: var(--sp-2); }
.mobile-nav a {
  display: block;
  font-size: 22px;
  font-family: var(--font-display);
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--border);
  color: var(--ink);
}
.mobile-nav .btn { margin-top: var(--sp-6); }
.mobile-nav .btn-primary { color: #000000; }

@media (min-width: 960px) {
  .main-nav { display: block; }
  .header-actions .btn-primary { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none; }
}

/* ---- Hero ---- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #000000;
  padding-block: var(--sp-9);
  cursor: crosshair;
}
.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: block;
}
.hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}
.hero-copy {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-5);
  pointer-events: none;
}
.hero-copy .eyebrow { pointer-events: auto; }
.hero h1 {
  margin: 0;
  background: linear-gradient(to bottom, #ffffff, rgba(255, 255, 255, 0.45));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lede { margin-inline: auto; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--sp-4); align-items: center; justify-content: center; pointer-events: auto; }
.hero-note { font-size: 13.5px; color: var(--ink-mute); }

.hero-scroll-cue {
  position: absolute;
  bottom: var(--sp-6);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  color: var(--ink-mute);
  pointer-events: none;
}
.hero-scroll-cue span { font-size: 10px; text-transform: uppercase; letter-spacing: 0.2em; }
.hero-scroll-cue svg { width: 16px; height: 16px; }

/* ---- Sections génériques ---- */
.section { padding-block: var(--sp-9); }
.section-head { max-width: 640px; margin-bottom: var(--sp-7); }
.section-head h2 { margin-top: var(--sp-3); }
.section-head .lede { margin-top: var(--sp-3); }
.section-alt { background: var(--bg-alt); }

/* ---- Portfolio ---- */
.case-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--sp-6); }
@media (min-width: 900px) { .case-grid { grid-template-columns: repeat(2, 1fr); } }

.case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}
.case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.case-media { aspect-ratio: 16/10; overflow: hidden; background: var(--accent-light); }
.case-media img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform 600ms var(--ease); }
.case-card:hover .case-media img { transform: scale(1.04); }
.case-body { padding: var(--sp-6); display: flex; flex-direction: column; gap: var(--sp-4); flex: 1; }
.case-kicker { font-size: 13px; color: var(--ink-mute); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.case-body h3 { font-size: 1.4rem; }
.case-actions { margin-top: auto; display: flex; gap: var(--sp-3); flex-wrap: wrap; }

/* ---- Méthode / timeline ---- */
.timeline {
  display: grid;
  gap: var(--sp-6);
  counter-reset: step;
}
@media (min-width: 900px) { .timeline { grid-template-columns: repeat(4, 1fr); } }

.timeline-step {
  position: relative;
  padding-top: var(--sp-6);
  border-top: 2px solid var(--border);
}
.timeline-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: -14px;
  left: 0;
  background: var(--bg);
  padding-right: var(--sp-3);
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--accent);
}
.timeline-step h3 { margin-bottom: var(--sp-2); }
.timeline-step p { font-size: 14.5px; }

/* ---- Offre ---- */
.pricing-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--sp-6); }
@media (min-width: 900px) { .pricing-grid { grid-template-columns: repeat(3, 1fr); } }

.price-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-7) var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}
.price-card.is-featured {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
  position: relative;
}
.price-card.is-featured::before {
  content: 'Le plus choisi';
  position: absolute;
  top: -14px;
  left: var(--sp-6);
  background: var(--accent);
  color: var(--accent-contrast);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
}
.price-name { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-mute); }
.price-amount { display: flex; align-items: baseline; gap: var(--sp-2); }
.price-amount .num { font-family: var(--font-display); font-size: 2.6rem; color: var(--ink); }
.price-amount .unit { font-size: 14px; color: var(--ink-mute); }
.price-amount-recurring { margin-top: -18px; }
.price-amount-recurring .num-sm { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--accent-dark); }
.price-list { display: flex; flex-direction: column; gap: var(--sp-3); flex: 1; }
.price-list li { display: flex; align-items: flex-start; gap: var(--sp-3); font-size: 14.5px; }
.price-list svg { flex-shrink: 0; width: 18px; height: 18px; color: var(--accent); margin-top: 2px; }

/* ---- À propos ---- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-7);
  align-items: center;
}
@media (min-width: 900px) { .about-grid { grid-template-columns: 0.9fr 1.1fr; } }
.about-grid-nomedia { grid-template-columns: minmax(0, 1fr); max-width: 760px; margin-inline: auto; }
@media (min-width: 900px) { .about-grid-nomedia { grid-template-columns: minmax(0, 1fr); } }
.about-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--accent-light);
  box-shadow: var(--shadow-md);
}
.about-media img { width: 100%; height: 100%; object-fit: cover; }
.about-values { display: grid; gap: var(--sp-4); margin-top: var(--sp-6); }
@media (min-width: 700px) { .about-values { grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); } }
.about-value { display: flex; gap: var(--sp-4); align-items: flex-start; }
.about-value > div { min-width: 0; }
.about-value svg { width: 22px; height: 22px; color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.about-value h3 { font-size: 1rem; margin-bottom: 2px; }
.about-value p { font-size: 14px; }

/* ---- Contact ---- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--sp-7); }
@media (min-width: 960px) { .contact-grid { grid-template-columns: 0.9fr 1.1fr; } }

.contact-info { display: flex; flex-direction: column; gap: var(--sp-5); }
.contact-info-item { display: flex; gap: var(--sp-4); }
.contact-info-item > div { min-width: 0; }
.contact-info-item svg { width: 20px; height: 20px; color: var(--accent); flex-shrink: 0; margin-top: 3px; }
.contact-info-item strong { display: block; color: var(--ink); font-size: 15px; }
.contact-info-item span, .contact-info-item a { font-size: 14.5px; }

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; gap: var(--sp-5); margin-bottom: var(--sp-5); }
@media (min-width: 560px) { .form-row.cols-2 { grid-template-columns: 1fr 1fr; } }

.field label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--sp-2);
}
.field .req { color: var(--danger); }
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  color: var(--ink);
  min-height: 48px;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"], .field select[aria-invalid="true"] {
  border-color: var(--danger);
}
.field-error {
  display: none;
  color: var(--danger);
  font-size: 13px;
  margin-top: var(--sp-2);
}
.field-error.is-visible { display: block; }
.form-status {
  display: none;
  margin-top: var(--sp-5);
  padding: var(--sp-4);
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-weight: 500;
}
.form-status.is-visible { display: block; }
.form-status.success { background: var(--accent-light); color: var(--accent-dark); }
.form-status.error { background: rgba(255, 107, 87, 0.14); color: var(--danger); }

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: var(--sp-8) var(--sp-6);
  background: var(--bg-alt);
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-7);
  margin-bottom: var(--sp-7);
}
@media (min-width: 800px) { .footer-top { grid-template-columns: 1.2fr 1fr 1fr; } }
.footer-brand p { font-size: 14.5px; margin-top: var(--sp-3); max-width: 32ch; }
.footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-mute); margin-bottom: var(--sp-4); font-family: var(--font-body); font-weight: 700; }
.footer-col ul { display: flex; flex-direction: column; gap: var(--sp-3); }
.footer-col a { font-size: 14.5px; transition: color var(--dur-fast) var(--ease); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  font-size: 13px;
  color: var(--ink-mute);
}
@media (min-width: 700px) { .footer-bottom { flex-direction: row; justify-content: space-between; } }

/* ---- Reveal on scroll ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---- Utilities ---- */
.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}