/* ==========================================================================
   AEKE France — Design system
   Palette:
     --bg-void:      #0B0C0E  (fond principal, graphite quasi noir)
     --bg-surface:   #16181C  (cartes, sections alternées)
     --ink:          #F2F1ED  (texte principal, blanc cassé)
     --ink-dim:      #9A9DA3  (texte secondaire)
     --metal:        #B8BCC2  (accent métal brossé — bordures, lignes)
     --signal:       #6FE7DD  (accent "scan" — réservé aux moments IA/data)
   Typographie:
     Display : Oswald (condensée, technique) — titres
     Corps   : Inter — texte courant
     Mono    : JetBrains Mono — specs, données, prix
   ========================================================================== */

:root {
  --bg-void: #0b0c0e;
  --bg-surface: #16181c;
  --bg-surface-2: #1e2126;
  --ink: #f2f1ed;
  --ink-dim: #9a9da3;
  --metal: #b8bcc2;
  --signal: #6fe7dd;
  --border: rgba(184, 188, 194, 0.14);

  --font-display: "Oswald", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
}

* { box-sizing: border-box; }

.icon { display: inline-block; vertical-align: middle; flex-shrink: 0; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-void);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }

h1, h2, h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-weight: 600;
  margin: 0 0 0.5em;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 0.75em;
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 0.9em 1.8em;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.85rem;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-primary {
  background: var(--ink);
  color: var(--bg-void);
}
.btn-primary:hover { background: var(--signal); color: var(--bg-void); }
.btn-secondary { background: none; color: var(--ink); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--ink); }
.btn-large { padding: 1.1em 2.4em; font-size: 0.9rem; width: 100%; text-align: center; }
.btn-full { width: 100%; text-align: center; padding: 1.1em 2.4em; font-size: 0.9rem; }

/* ---- Header ---- */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(11,12,14,0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.header-bar {
  display: flex; justify-content: center; gap: 2.5em;
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.05em;
  color: var(--ink-dim); padding: 0.5em 0; border-bottom: 1px solid var(--border);
}
.header-main { display: flex; align-items: center; justify-content: space-between; padding: 1em 2em; }
.logo { display: inline-flex; align-items: center; }
.logo img { height: 1.6rem; width: auto; }
.main-nav { display: flex; gap: 2em; }
.nav-item a { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; }
.nav-tag { color: var(--signal); font-size: 0.65rem; margin-left: 0.4em; }
.cart-link { display: flex; align-items: center; gap: 0.5em; font-family: var(--font-mono); font-size: 0.85rem; }
.cart-count { background: var(--signal); color: var(--bg-void); border-radius: 50%; width: 1.4em; height: 1.4em; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; }

.nav-toggle { display: none; align-items: center; justify-content: center; width: 2.2em; height: 2.2em; padding: 0; background: none; border: none; color: var(--ink); cursor: pointer; }
.nav-toggle-icon-close { display: none; }
.nav-toggle-open .nav-toggle-icon-menu { display: none; }
.nav-toggle-open .nav-toggle-icon-close { display: inline-flex; }

/* ---- Hero ---- */
.hero { position: relative; height: 88vh; min-height: 560px; display: flex; align-items: flex-end; overflow: hidden; }
.hero-media { position: absolute; inset: 0; }
.hero-media video, .hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(11,12,14,0.95) 0%, rgba(11,12,14,0.2) 55%, rgba(11,12,14,0.35) 100%); }
.hero-content { position: relative; z-index: 2; padding: 3.5em; max-width: 640px; }
.hero-content h1 { font-size: clamp(2.4rem, 5vw, 4rem); line-height: 1.02; }
.hero-content p { color: var(--ink-dim); margin-bottom: 1.5em; font-size: 1.05rem; }

/* Signature element: scan-line sweep, evokes the AI body-scan tech */
.scan-line {
  position: absolute; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--signal) 50%, transparent);
  box-shadow: 0 0 12px 2px var(--signal);
  opacity: 0; pointer-events: none;
  animation: scan-sweep 5s ease-in-out infinite;
}
@keyframes scan-sweep {
  0% { top: 0%; opacity: 0; }
  8% { opacity: 0.85; }
  45% { opacity: 0.85; }
  55% { top: 100%; opacity: 0; }
  100% { top: 100%; opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .scan-line { animation: none; opacity: 0; }
}

/* ---- Product strip (home) ---- */
.product-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1px; background: var(--border); margin: 1px 0; }
.product-card { background: var(--bg-surface); padding: 2em; display: block; transition: background 0.2s; }
.product-card:hover { background: var(--bg-surface-2); }
.product-card-media { margin-bottom: 1.5em; aspect-ratio: 4/3; overflow: hidden; background: #000; }
.product-card-media img { width: 100%; height: 100%; object-fit: cover; }
.product-card-label { display: block; font-size: 0.8rem; color: var(--ink-dim); margin-bottom: 0.3em; }
.product-card-price { font-family: var(--font-mono); color: var(--signal); font-size: 0.95rem; }

/* ---- AI system / 4-step feature grid ---- */
.ai-system { padding: 5em 2em; background: var(--bg-surface); }
.ai-system-intro { text-align: center; margin-bottom: 3em; }
.ai-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2.5em; max-width: 1200px; margin: 0 auto; }
.ai-step { border-top: 1px solid var(--metal); padding-top: 1em; }
.ai-step-index { display: block; font-family: var(--font-mono); color: var(--signal); font-size: 0.8rem; margin-bottom: 0.6em; }
.ai-step h3 { font-size: 1.1rem; margin-bottom: 0.4em; }
.ai-step p { color: var(--ink-dim); font-size: 0.9rem; line-height: 1.5; }

/* ---- Training styles ---- */
.training-styles { padding: 5em 2em; text-align: center; }
.training-styles h2 { margin-bottom: 2em; }
.training-styles-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 2em; max-width: 1000px; margin: 0 auto; }
.training-style-card { position: relative; aspect-ratio: 3/4; overflow: hidden; border: 1px solid var(--border); }
.training-style-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.training-style-card:hover img { transform: scale(1.05); }
.training-style-card span { position: absolute; bottom: 1.2em; left: 1.2em; font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.05em; font-size: 1.1rem; }

/* ---- Product detail page ---- */
.product-page { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3em; padding: 3em 2em; max-width: 1300px; margin: 0 auto; }
.product-gallery-main { position: relative; aspect-ratio: 1/1; background: var(--bg-surface); overflow: hidden; }
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.product-gallery-thumbs { display: flex; gap: 0.6em; margin-top: 0.6em; }
.product-gallery-thumbs img { width: 72px; height: 72px; object-fit: cover; cursor: pointer; border: 1px solid var(--border); }
.badge { display: inline-block; background: var(--signal); color: var(--bg-void); font-family: var(--font-mono); font-size: 0.7rem; padding: 0.2em 0.6em; margin-bottom: 0.8em; text-transform: uppercase; }
.product-subtitle { color: var(--ink-dim); margin-bottom: 1.2em; }
.price-row { display: flex; align-items: baseline; gap: 0.8em; margin-bottom: 1.2em; }
.price { font-family: var(--font-mono); font-size: 1.6rem; color: var(--signal); }
.price-compare { font-family: var(--font-mono); text-decoration: line-through; color: var(--ink-dim); }
.product-description { color: var(--ink-dim); line-height: 1.6; margin-bottom: 1.8em; }
.add-to-cart-form { display: flex; gap: 1em; align-items: center; margin-bottom: 1em; }
.add-to-cart-form input[type="number"] { width: 70px; background: var(--bg-surface); border: 1px solid var(--border); color: var(--ink); padding: 0.8em; }
.stock-note, .financing-note { font-size: 0.85rem; color: var(--ink-dim); margin: 0.3em 0; }
.specs-table { width: 100%; margin-top: 2em; border-collapse: collapse; font-family: var(--font-mono); font-size: 0.85rem; }
.specs-table td { padding: 0.8em 0; border-bottom: 1px solid var(--border); }
.specs-table td:first-child { color: var(--ink-dim); }
.video-showcase { padding: 4em 2em; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1em; max-width: 1300px; margin: 0 auto; }

/* ---- Cart / checkout ---- */
.cart-page, .checkout-page, .confirmation-page, .static-page, .error-page { max-width: 1000px; margin: 0 auto; padding: 3em 2em; }
.static-page h1 { display: flex; align-items: center; gap: 0.4em; }
.checkout-success { text-align: center; }
.checkout-success h1 { justify-content: center; margin-top: 0.5em; }
.checkout-success > .icon { color: var(--signal); }
.checkout-success .btn { display: inline-block; width: auto; margin-top: 1em; }
.cart-table { width: 100%; border-collapse: collapse; margin-bottom: 2em; }
.cart-table th { text-align: left; font-family: var(--font-mono); font-size: 0.75rem; color: var(--ink-dim); text-transform: uppercase; padding-bottom: 1em; border-bottom: 1px solid var(--border); }
.cart-table td { padding: 1em 0; border-bottom: 1px solid var(--border); }
.cart-product-cell { display: flex; align-items: center; gap: 1em; }
.cart-product-cell img { width: 60px; height: 60px; object-fit: cover; }
.remove-btn { display: flex; align-items: center; gap: 4px; color: #ff8080; background: none; border: none; cursor: pointer; }

.qty-stepper { display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: 6px; }
.qty-btn { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; background: none; border: none; color: var(--ink); cursor: pointer; }
.qty-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.qty-value { min-width: 28px; text-align: center; font-variant-numeric: tabular-nums; font-family: var(--font-mono); }
.cart-summary { display: flex; justify-content: space-between; font-family: var(--font-display); font-size: 1.3rem; margin-bottom: 1.5em; }
.checkout-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 3em; }
.checkout-form-col input, .checkout-form-col textarea { width: 100%; background: var(--bg-surface); border: 1px solid var(--border); color: var(--ink); padding: 0.9em; margin-bottom: 1em; }
.summary-line { display: flex; justify-content: space-between; padding: 0.6em 0; color: var(--ink-dim); font-size: 0.9rem; }
.summary-total { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 1.2rem; margin-top: 1em; padding-top: 1em; border-top: 1px solid var(--border); }
.payment-message { margin-top: 1em; font-size: 0.85rem; }
.hidden { display: none; }

/* ---- Generic forms (contact, checkout) ---- */
.lead { color: var(--ink-dim); font-size: 1.05rem; max-width: 640px; margin-bottom: 2em; }
.form-row { margin-bottom: 1.2em; }
.form-row label { display: block; font-size: 0.8rem; color: var(--ink-dim); margin-bottom: 0.4em; text-transform: uppercase; letter-spacing: 0.03em; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; background: var(--bg-surface); border: 1px solid var(--border); color: var(--ink);
  padding: 0.9em; font-family: var(--font-body); font-size: 0.95rem;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: 2px solid var(--signal); outline-offset: -1px; }
.form-row-split { display: grid; grid-template-columns: 1fr 1fr; gap: 1em; }
.form-hint { font-size: 0.8rem; color: var(--ink-dim); margin-top: 0.6em; }
.confirmation-box { display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; padding: 32px; border: 1px solid var(--border); border-radius: 8px; }
.order-tracking-items { list-style: none; padding: 0; margin: 0; width: 100%; max-width: 360px; text-align: left; }
.order-tracking-items li { padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.order-tracking-total { font-weight: 600; }
.qty-value-input {
  width: 40px;
  text-align: center;
  border: none;
  background: none;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  -moz-appearance: textfield;
}
.qty-value-input::-webkit-inner-spin-button,
.qty-value-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

fieldset { border: none; border-top: 1px solid var(--border); padding: 1.5em 0; margin: 0 0 1em; }
fieldset legend { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.03em; font-size: 0.95rem; padding-right: 0.6em; }

.radio-card { display: flex; align-items: center; gap: 0.8em; padding: 1em; border: 1px solid var(--border); border-radius: 4px; margin-bottom: 0.8em; cursor: pointer; }
.radio-card:has(input:checked) { border-color: var(--signal); }
.radio-card input[type="radio"] { accent-color: var(--signal); }
.radio-card span { display: flex; align-items: center; gap: 0.6em; }

/* ---- Contact page ---- */
.contact-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 3em; }
.contact-info h3 { font-size: 1rem; margin-bottom: 1em; }
.contact-info p { color: var(--ink-dim); margin-bottom: 1.2em; line-height: 1.5; }
.contact-info a { color: var(--signal); }

/* ---- Support page ---- */
.support-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5em; margin-bottom: 3em; }
.support-card { background: var(--bg-surface); border: 1px solid var(--border); padding: 1.8em; }
.support-card h3 { font-size: 1rem; margin-bottom: 0.6em; }
.support-card p { color: var(--ink-dim); font-size: 0.9rem; line-height: 1.5; margin-bottom: 1.2em; }
.support-contact-cta { text-align: center; padding: 3em 2em; background: var(--bg-surface); border: 1px solid var(--border); }
.support-contact-cta p { color: var(--ink-dim); margin-bottom: 1.5em; }

/* ---- FAQ accordion ---- */
.faq-page h2 { margin-top: 2em; font-size: 1.1rem; color: var(--metal); }
.faq-item { border-bottom: 1px solid var(--border); padding: 1em 0; }
.faq-item summary {
  cursor: pointer; font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.02em;
  font-size: 0.95rem; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .icon { transition: transform 0.2s ease; margin-left: auto; }
.faq-item[open] summary { color: var(--signal); }
.faq-item[open] summary .icon { transform: rotate(180deg); }
.faq-item p { color: var(--ink-dim); margin-top: 1em; line-height: 1.6; }

/* ---- Footer ---- */
.site-footer { background: var(--bg-surface); border-top: 1px solid var(--border); padding: 4em 2em 2em; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 2em; max-width: 1300px; margin: 0 auto 3em; }
.footer-col h4 { font-size: 0.8rem; letter-spacing: 0.05em; color: var(--metal); margin-bottom: 1em; }
.footer-col a, .footer-col p { display: block; font-size: 0.85rem; color: var(--ink-dim); margin-bottom: 0.7em; }
.footer-bottom { text-align: center; font-family: var(--font-mono); font-size: 0.75rem; color: var(--ink-dim); border-top: 1px solid var(--border); padding-top: 2em; max-width: 1300px; margin: 0 auto; }

/* ---- Flash messages ---- */
.flash { text-align: center; padding: 0.8em; font-size: 0.9rem; font-family: var(--font-mono); }
.flash-success { background: rgba(111,231,221,0.15); color: var(--signal); }
.flash-error { background: rgba(255,100,100,0.15); color: #ff8080; }

/* ---- Responsive ---- */

/* Tablet and below: product page / checkout stack, gallery & summary before info */
@media (max-width: 900px) {
  .product-page, .checkout-grid { grid-template-columns: 1fr; }
}

/* Mobile nav: burger menu under 768px */
@media (max-width: 768px) {
  .header-bar { justify-content: flex-start; gap: 1.2em; font-size: 0.62rem; overflow-x: auto; -webkit-overflow-scrolling: touch; white-space: nowrap; padding: 0.5em 1em; }
  .header-bar::-webkit-scrollbar { display: none; }
  .header-bar span { flex: none; }

  .header-main { padding: 0.8em 1em; position: relative; }
  .nav-toggle { display: flex; order: 2; margin-left: auto; }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--bg-void);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 24px rgba(0,0,0,0.35);
  }
  .main-nav.nav-open { display: flex; }
  .nav-item { width: 100%; border-bottom: 1px solid var(--border); }
  .nav-item a { display: block; padding: 1em 1.2em; }

  .header-actions { order: 3; margin-left: 0.75em; }

  /* Hero: shorter on mobile so it doesn't dominate the viewport, content padding reduced */
  .hero { height: auto; min-height: 0; aspect-ratio: 3/4; }
  .hero-content { padding: 1.5em; max-width: 100%; }
  .hero-content h1 { font-size: clamp(2rem, 9vw, 2.6rem); }

  /* AEKE Intelligence: single column under 768px */
  .ai-system { padding: 3em 1.2em; }
  .ai-steps { grid-template-columns: 1fr; gap: 2em; }

  /* Video showcase: horizontal scroll-snap carousel on mobile */
  .video-showcase { padding: 2.5em 1.2em; }
  .video-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 0.8em;
    max-width: 100%;
  }
  .video-grid video { flex: 0 0 82%; scroll-snap-align: start; }

  /* Product page: tighter spacing, thumbs still scrollable */
  .product-page { padding: 2em 1.2em; gap: 2em; }
  .product-gallery-thumbs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .add-to-cart-form { flex-wrap: wrap; }
  .add-to-cart-form .btn { flex: 1 1 100%; }

  /* Cart: allow the table to scroll horizontally instead of overflowing the page */
  .cart-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; white-space: nowrap; }

  /* Cart / checkout / static pages: tighter side padding on mobile */
  .cart-page, .checkout-page, .confirmation-page, .static-page, .error-page { padding: 2em 1.2em; }

  /* Contact / support: stack side-by-side layouts */
  .contact-layout { grid-template-columns: 1fr; gap: 2.5em; }
  .support-grid { grid-template-columns: 1fr; }
  .form-row-split { grid-template-columns: 1fr; }
}

/* Small mobile: single-column product/accessory grids, stacked footer */
@media (max-width: 640px) {
  .product-strip { grid-template-columns: 1fr; }
  .training-styles-grid { grid-template-columns: 1fr; }
  .training-styles { padding: 3em 1.2em; }
  .product-card { padding: 1.5em; }

  .footer-grid { grid-template-columns: 1fr; gap: 2em; text-align: left; }
  .site-footer { padding: 3em 1.2em 1.5em; }
}

/* ---- Accessibility: focus states ---- */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}