/* ==========================================================================
   SIMAE SUPPLY — Design tokens
   ========================================================================== */
:root {
  --ink: #14140f;
  --ink-soft: #2c2b26;
  --stone: #6b6960;
  --paper: #ffffff;
  --mist: #f5f4f0;
  --mist-deep: #ecebe4;
  --line: #e3e1d9;
  --brass: #a9814a;
  --brass-deep: #8c6b3c;
  --brass-tint: #f2e9db;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1180px;
  --gutter: clamp(24px, 5vw, 64px);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root { color-scheme: light; }
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@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;
  font-family: var(--font-body);
  color: var(--ink-soft);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 20px;
  z-index: 1000;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

.section-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 440;
  font-size: clamp(2rem, 3.4vw, 2.9rem);
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: 0 0 20px;
}

.section-lede {
  max-width: 46ch;
  color: var(--stone);
  font-size: 1.05rem;
  line-height: 1.7;
  margin: 0;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: transform 0.5s var(--ease), background-color 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--paper);
  color: var(--ink);
}
.hero .btn-primary { background: var(--paper); color: var(--ink); }
.devis .btn-primary,
.solutions .btn-primary { background: var(--ink); color: var(--paper); }

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

.btn-ghost {
  border: 1px solid rgba(255,255,255,0.4);
  color: var(--paper);
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.8);
  transform: translateY(-2px);
}

.btn-submit {
  width: 100%;
  padding: 16px 30px;
  margin-top: 6px;
  position: relative;
}
.btn-submit:disabled { opacity: 0.6; cursor: default; transform: none; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--paper);
  transition: color 0.4s var(--ease);
}
.is-scrolled .brand { color: var(--ink); }

.brand-mark { display: flex; color: var(--brass); }

.brand-name {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 440;
  letter-spacing: 0.01em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.main-nav a {
  font-size: 0.92rem;
  color: var(--paper);
  opacity: 0.9;
  transition: opacity 0.3s var(--ease), color 0.4s var(--ease);
}
.is-scrolled .main-nav a { color: var(--ink-soft); }
.main-nav a:hover { opacity: 1; }

.main-nav .nav-cta {
  padding: 9px 20px;
  border: 1px solid rgba(255,255,255,0.45);
  border-radius: 100px;
  opacity: 1;
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease), color 0.3s var(--ease);
}
.is-scrolled .main-nav .nav-cta {
  border-color: var(--ink);
}
.main-nav .nav-cta:hover {
  background: var(--paper);
  color: var(--ink);
}
.is-scrolled .main-nav .nav-cta:hover {
  background: var(--ink);
  color: var(--paper);
}

.nav-toggle {
  display: none;
  width: 34px;
  height: 34px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.nav-toggle span {
  width: 20px;
  height: 1.4px;
  background: var(--paper);
  transition: background-color 0.4s var(--ease), transform 0.3s var(--ease);
}
.is-scrolled .nav-toggle span { background: var(--ink); }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.7px) rotate(-45deg); }

.mobile-nav {
  display: flex;
  flex-direction: column;
  max-height: 0;
  overflow: hidden;
  background: rgba(20,20,15,0.97);
  backdrop-filter: blur(14px);
  transition: max-height 0.45s var(--ease);
}
.mobile-nav.is-open { max-height: 220px; }
.mobile-nav a {
  color: var(--paper);
  padding: 16px var(--gutter);
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 1rem;
}

@media (max-width: 760px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #0a0a08;
}

.hero-scene {
  position: absolute;
  inset: 0;
}
.hero-linen { width: 100%; height: 100%; }

.hero-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 55% at 50% 32%, rgba(169,129,74,0.16), transparent 70%),
    linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.55) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 760px;
  padding: 0 var(--gutter);
  animation: hero-rise 1.1s var(--ease) both;
}

@keyframes hero-rise {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  color: var(--brass);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  margin: 0 0 22px;
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 440;
  font-size: clamp(2.6rem, 6.6vw, 4.6rem);
  line-height: 1.08;
  color: var(--paper);
  letter-spacing: -0.01em;
  margin: 0 0 24px;
}

.hero-subtitle {
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  color: rgba(255,255,255,0.78);
  line-height: 1.6;
  max-width: 46ch;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.scroll-hint {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 46px;
  z-index: 2;
}
.scroll-hint-line {
  display: block;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0.7), transparent);
  animation: hint-pulse 2.2s var(--ease) infinite;
}
@keyframes hint-pulse {
  0% { transform: scaleY(0.3); transform-origin: top; opacity: 0.4; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  100% { transform: scaleY(0.3); transform-origin: bottom; opacity: 0.4; }
}

/* ==========================================================================
   Solutions / Catalogue
   ========================================================================== */
.solutions {
  background: var(--paper);
  padding: 128px 0 108px;
}

.solutions-head {
  margin-bottom: 64px;
}

.carousel {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
}

.carousel-viewport {
  overflow: hidden;
  flex: 1;
  min-width: 0;
}

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

.carousel-track.no-transition { transition: none; }

.product-card {
  flex: 0 0 calc((100% - 2 * 28px) / 3);
  margin-right: 28px;
  display: flex;
  flex-direction: column;
}

.product-card-media {
  position: relative;
  aspect-ratio: 4 / 5;
  background: var(--mist);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease);
}

.product-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.product-card:hover .product-card-media {
  transform: translateY(-6px) scale(1.015);
  box-shadow: 0 24px 48px -20px rgba(20,20,15,0.22);
}
.product-card:hover .product-card-media img { transform: scale(1.04); }

.product-card-body {
  padding-top: 20px;
}

.product-card-name {
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 440;
  color: var(--ink);
  margin: 0 0 6px;
}

.product-card-desc {
  font-size: 0.9rem;
  color: var(--stone);
  line-height: 1.55;
  margin: 0;
}

.carousel-arrow {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.carousel-arrow:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}
.carousel-arrow:active { transform: scale(0.94); }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}
.carousel-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--line);
  transition: background-color 0.3s var(--ease), transform 0.3s var(--ease), width 0.3s var(--ease);
}
.carousel-dot.is-active {
  background: var(--brass);
  width: 18px;
  border-radius: 3px;
}

@media (max-width: 900px) {
  .product-card {
    flex: 0 0 calc((100% - 28px) / 2);
  }
}

@media (max-width: 620px) {
  .solutions { padding: 92px 0 80px; }
  .carousel { gap: 8px; }
  .product-card {
    flex: 0 0 100%;
    margin-right: 18px;
  }
  .carousel-arrow { width: 38px; height: 38px; }
}

/* ==========================================================================
   Devis
   ========================================================================== */
.devis {
  background: var(--mist);
  padding: 128px 0;
}

.devis-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
}

.devis-intro { position: sticky; top: 120px; }

.devis-points {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.devis-points li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.devis-points li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brass);
  flex-shrink: 0;
  transform: translateY(-2px);
}

.devis-form {
  background: var(--paper);
  border-radius: 24px;
  padding: clamp(28px, 4vw, 44px);
  box-shadow: 0 30px 70px -40px rgba(20,20,15,0.18);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.field {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}

.field label {
  font-size: 0.82rem;
  color: var(--stone);
  margin-bottom: 8px;
}

.field input,
.field select,
.field textarea {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 13px 15px;
  font-size: 0.96rem;
  background: var(--paper);
  color: var(--ink);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.field textarea { resize: vertical; min-height: 96px; font-family: var(--font-body); }

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--brass);
  box-shadow: 0 0 0 3px var(--brass-tint);
  outline: none;
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%236b6960' stroke-width='1.4' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 15px center;
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: #b8503f;
}

.field-error {
  min-height: 18px;
  font-size: 0.78rem;
  color: #b8503f;
  margin-top: 6px;
}

.form-status {
  margin: 16px 0 0;
  font-size: 0.9rem;
  min-height: 20px;
}
.form-status.is-success { color: #4c7a4f; }
.form-status.is-error { color: #b8503f; }

@media (max-width: 900px) {
  .devis-grid { grid-template-columns: 1fr; }
  .devis-intro { position: static; }
}

@media (max-width: 560px) {
  .devis { padding: 92px 0; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.7);
  padding: 48px 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 0.95rem;
}
.footer-tagline {
  font-size: 0.85rem;
  margin: 0;
  color: var(--brass);
}
.footer-legal {
  font-size: 0.8rem;
  margin: 0;
  width: 100%;
  order: 3;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 12px;
}