/* ========== Formagir · Design System ========== */
:root {
  /* Palette 1 : Émeraude (par défaut) */
  --bg: #F6F2EA;        /* ivoire */
  --bg-alt: #EEE8DB;
  --surface: #FFFFFF;
  --ink: #0B1C17;        /* vert-noir profond */
  --ink-soft: #3A4A43;
  --ink-muted: #6B7974;
  --line: #E4DDCC;
  --accent: #0E5D4A;     /* émeraude profond */
  --accent-deep: #083C30;
  --accent-soft: #D9E8DF;
  --accent-ink: #FFFFFF;
  --warm: #E9C46A;       /* ocre secondaire */
  --danger: #B84A3E;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 28px;
  --shadow-sm: 0 1px 2px rgba(8, 60, 48, 0.04), 0 2px 8px rgba(8, 60, 48, 0.04);
  --shadow: 0 4px 16px rgba(8, 60, 48, 0.06), 0 16px 40px rgba(8, 60, 48, 0.07);
  --shadow-lg: 0 8px 24px rgba(8, 60, 48, 0.08), 0 32px 72px rgba(8, 60, 48, 0.10);

  --container: 1240px;
  --radius-pill: 999px;

  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

/* Palette 2 : Indigo nuit */
[data-palette="indigo"] {
  --bg: #F4F1EC;
  --bg-alt: #EBE5DA;
  --surface: #FFFFFF;
  --ink: #12132B;
  --ink-soft: #3B3E60;
  --ink-muted: #6B6E8A;
  --line: #E1DCCF;
  --accent: #2E3A8C;
  --accent-deep: #1A2466;
  --accent-soft: #DDE0F0;
  --accent-ink: #FFFFFF;
  --warm: #E9B44C;
}

/* Palette 3 : Bordeaux chaleureux */
[data-palette="bordeaux"] {
  --bg: #F7F2EC;
  --bg-alt: #EEE5D9;
  --surface: #FFFFFF;
  --ink: #2A1513;
  --ink-soft: #4D2F2B;
  --ink-muted: #7A5F5B;
  --line: #E7DAC8;
  --accent: #9B2C2C;
  --accent-deep: #6E1E1E;
  --accent-soft: #EDD8D3;
  --accent-ink: #FFFFFF;
  --warm: #D9A441;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html, body { overflow-x: hidden; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
  font-weight: 500;
  text-wrap: balance;
}
h1 { font-size: clamp(40px, 5.4vw, 76px); }
h2 { font-size: clamp(30px, 3.4vw, 48px); }
h3 { font-size: clamp(20px, 1.8vw, 26px); }
p { text-wrap: pretty; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* ===== Top bar ===== */
.topbar {
  background: var(--ink);
  color: #EDE7D8;
  font-size: 13px;
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 28px; max-width: var(--container); margin: 0 auto;
  gap: 24px; flex-wrap: wrap;
}
.topbar-left { display: flex; gap: 22px; align-items: center; color: #BFC8C3; }
.topbar-left .dot { width: 6px; height: 6px; background: var(--warm); border-radius: 50%; display: inline-block; margin-right: 8px; }
.topbar-right { display: flex; gap: 18px; align-items: center; }
.topbar-right a:hover { color: var(--warm); }

/* ===== Header ===== */
.site-header {
  background: rgba(253, 251, 246, 0.72);
  border-bottom: 1px solid transparent;
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  transition: padding .3s ease, background .3s ease, border-color .3s ease, box-shadow .3s ease;
  animation: header-in .6s ease-out both;
}
.site-header.scrolled {
  background: rgba(253, 251, 246, 0.92);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 24px -20px rgba(0,0,0,0.2);
}
@keyframes header-in {
  from { transform: translateY(-8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px; max-width: var(--container); margin: 0 auto;
  gap: 32px;
  transition: padding .3s ease;
}
.site-header.scrolled .nav { padding: 12px 28px; }

/* ===== Logo ===== */
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: 22px;
  letter-spacing: -0.02em; color: var(--ink);
  position: relative;
  text-decoration: none;
}

/* Monogram glyph */
.brand-mark {
  width: 32px; height: 32px;
  position: relative;
  display: inline-block;
  flex-shrink: 0;
}
.brand-mark svg {
  width: 100%; height: 100%;
  overflow: visible;
  display: block;
}
.brand-mark .mark-ring {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: mark-ring-draw 1.6s cubic-bezier(.65,.05,.36,1) 0.1s forwards,
             mark-ring-spin 18s linear 2s infinite;
  transform-origin: 50% 50%;
}
.brand-mark .mark-f {
  fill: var(--ink);
  opacity: 0;
  transform: translateY(6px);
  animation: mark-f-in .7s cubic-bezier(.2,.9,.3,1.2) .9s forwards;
}
.brand-mark .mark-dot {
  fill: var(--accent);
  opacity: 0;
  transform-origin: center;
  animation: mark-dot-in .5s cubic-bezier(.2,.9,.3,1.6) 1.3s forwards,
             mark-dot-pulse 3s ease-in-out 2s infinite;
}

@keyframes mark-ring-draw {
  to { stroke-dashoffset: 0; }
}
@keyframes mark-ring-spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
@keyframes mark-f-in {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes mark-dot-in {
  0%   { opacity: 0; transform: scale(0); }
  60%  { opacity: 1; transform: scale(1.4); }
  100% { opacity: 1; transform: scale(1); }
}
@keyframes mark-dot-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.25); }
}

/* Wordmark */
.brand-word {
  display: inline-flex;
  overflow: hidden;
  line-height: 1;
}
.brand-word span.brand-letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
  animation: brand-letter-in .5s cubic-bezier(.2,.9,.3,1.2) forwards;
}
@keyframes brand-letter-in {
  to { opacity: 1; transform: translateY(0); }
}
.brand-word .brand-accent {
  color: var(--accent);
  display: inline-block;
  opacity: 0;
  transform: translateY(100%) scale(.5);
  animation: brand-accent-in .6s cubic-bezier(.2,.9,.3,1.4) 1.4s forwards;
}
@keyframes brand-accent-in {
  0%   { opacity: 0; transform: translateY(100%) scale(.5); }
  60%  { opacity: 1; transform: translateY(-6%) scale(1.4); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}

/* Hover: subtle glyph reaction */
.brand:hover .mark-ring {
  animation: mark-ring-spin 3s linear infinite;
}
.brand:hover .mark-dot {
  animation: mark-dot-pulse 1s ease-in-out infinite;
}

/* Footer variant (on dark) */
.footer-brand .brand { color: #fff; }
.footer-brand .brand-mark .mark-f { fill: #fff; }
.footer-brand .brand-mark .mark-ring { stroke: var(--warm); }
.footer-brand .brand-mark .mark-dot { fill: var(--warm); }
.footer-brand .brand-word .brand-accent { color: var(--warm); }

@media (prefers-reduced-motion: reduce) {
  .brand-mark .mark-ring,
  .brand-mark .mark-f,
  .brand-mark .mark-dot,
  .brand-word span.brand-letter,
  .brand-word .brand-accent {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    stroke-dashoffset: 0 !important;
  }
}

.nav-links { display: flex; gap: 2px; align-items: center; }
.nav-links a {
  padding: 10px 14px; border-radius: 10px;
  font-weight: 500; font-size: 15px; color: var(--ink-soft);
  position: relative;
  transition: color .2s ease, transform .25s cubic-bezier(.2,.9,.3,1.3);
}
.nav-links a::before {
  content: ""; position: absolute;
  left: 14px; right: 14px; bottom: 6px;
  height: 2px; border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left center;
  transition: transform .35s cubic-bezier(.2,.9,.3,1.1);
}
.nav-links a:hover { color: var(--ink); transform: translateY(-1px); }
.nav-links a:hover::before { transform: scaleX(1); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::before { transform: scaleX(1); background: var(--accent); }

.nav-cta { display: flex; gap: 10px; align-items: center; }
.nav-cta .btn { transition: transform .25s cubic-bezier(.2,.9,.3,1.3), box-shadow .25s, background .2s, color .2s; }
.nav-cta .btn:hover { transform: translateY(-2px); }

/* Staggered entrance of nav items */
.nav-links a, .nav-cta > * {
  animation: nav-in .5s ease-out both;
}
.nav-links a:nth-child(1) { animation-delay: .12s; }
.nav-links a:nth-child(2) { animation-delay: .18s; }
.nav-links a:nth-child(3) { animation-delay: .24s; }
.nav-links a:nth-child(4) { animation-delay: .30s; }
.nav-links a:nth-child(5) { animation-delay: .36s; }
.nav-cta > *:nth-child(1) { animation-delay: .42s; }
.nav-cta > *:nth-child(2) { animation-delay: .48s; }
@keyframes nav-in {
  from { transform: translateY(-6px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-radius: var(--radius-pill);
  font-weight: 500; font-size: 15px; font-family: var(--font-body);
  transition: transform .15s, background .18s, color .18s, box-shadow .18s;
  border: 1px solid transparent; cursor: pointer;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-deep); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn-dark { background: var(--ink); color: var(--bg); }
.btn-dark:hover { background: var(--accent-deep); }
.btn-lg { padding: 16px 26px; font-size: 16px; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translate(3px, -2px); }

/* ===== Chips / Pills ===== */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: var(--radius-pill);
  background: var(--accent-soft); color: var(--accent-deep);
  font-size: 13px; font-weight: 500; letter-spacing: 0.01em;
}
.chip .chip-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

.eyebrow {
  font-family: var(--font-body); font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.12em;
  font-size: 12px; color: var(--ink-muted);
}

/* ===== Sections ===== */
.section { padding: 96px 0; }
.section-tight { padding: 64px 0; }
.section-dark { background: var(--ink); color: var(--bg); }
.section-dark h1, .section-dark h2, .section-dark h3 { color: var(--bg); }

.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 32px; margin-bottom: 48px; flex-wrap: wrap;
}
.section-head .eyebrow { margin-bottom: 12px; }
.section-head h2 { max-width: 640px; }
.section-head p { max-width: 420px; color: var(--ink-muted); margin: 0; }

/* ===== Cards ===== */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 28px;
  transition: transform .25s cubic-bezier(.2,.7,.2,1), box-shadow .25s, border-color .25s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }

/* ===== Footer ===== */
.site-footer {
  background: var(--ink); color: #CFD6D2; padding: 80px 0 28px;
  margin-top: 80px;
}
.site-footer h4 { color: #FFF; font-size: 14px; text-transform: uppercase; letter-spacing: 0.12em; font-family: var(--font-body); font-weight: 600; margin-bottom: 18px; }
.site-footer a { display: block; padding: 5px 0; color: #A8B3AE; font-size: 14px; transition: color .15s; }
.site-footer a:hover { color: var(--warm); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand p { color: #A8B3AE; font-size: 14px; line-height: 1.6; margin: 16px 0 20px; max-width: 260px; }
.footer-socials { display: flex; gap: 10px; }
.footer-socials a {
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.06); display: grid; place-items: center;
  padding: 0;
}
.footer-socials a:hover { background: var(--accent); color: #FFF; }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 28px; gap: 32px; flex-wrap: wrap;
  font-size: 13px; color: #7F8985;
}
.footer-legal { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-legal a { display: inline; padding: 0; font-size: 13px; }

/* ===== Utility ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ===== Mobile nav toggle (hamburger) ===== */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: transparent;
  border: 1px solid var(--line);
  align-items: center; justify-content: center;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  color: var(--ink);
}
.nav-toggle .bar {
  display: block; width: 20px; height: 2px; background: currentColor;
  border-radius: 2px; position: relative;
  transition: background-color .2s;
}
.nav-toggle .bar::before,
.nav-toggle .bar::after {
  content: ""; position: absolute; left: 0; width: 20px; height: 2px;
  background: currentColor; border-radius: 2px;
  transition: transform .25s cubic-bezier(.2,.9,.3,1.1), top .25s ease;
}
.nav-toggle .bar::before { top: -6px; }
.nav-toggle .bar::after  { top: 6px; }
.nav-toggle.open .bar { background: transparent; }
.nav-toggle.open .bar::before { top: 0; transform: rotate(45deg); }
.nav-toggle.open .bar::after  { top: 0; transform: rotate(-45deg); }
body.menu-open { overflow: hidden; }

@media (max-width: 960px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 64px 0; }

  /* Mobile header layout */
  .site-header { position: sticky; top: 0; }
  .nav { gap: 12px; }
  .nav-toggle { display: inline-flex; }
  .nav-cta { display: none; }

  /* Hidden by default, shown when .open */
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    padding: 12px 20px 20px;
    background: rgba(253, 251, 246, 0.98);
    backdrop-filter: blur(14px) saturate(1.1);
    -webkit-backdrop-filter: blur(14px) saturate(1.1);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 40px -12px rgba(0,0,0,0.18);
    animation: nav-drawer-in .25s ease-out;
  }
  .nav-links.open a {
    padding: 14px 10px;
    font-size: 16px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }
  .nav-links.open a:last-of-type { border-bottom: none; }
  .nav-links.open a::before { display: none; }
  .nav-links.open .mobile-cta {
    margin: 14px 0 4px;
    border-bottom: none;
    justify-content: center;
    background: var(--accent); color: var(--accent-ink);
    border-radius: var(--radius-pill);
    padding: 14px 20px;
    font-weight: 500;
    display: flex; align-items: center; gap: 8px;
  }
}
@keyframes nav-drawer-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== Tablet and phone ===== */
@media (max-width: 760px) {
  body { font-size: 16px; }
  .container { padding: 0 20px; }
  .section { padding: 48px 0; }
  .section-tight { padding: 40px 0; }

  .topbar-inner { padding: 8px 20px; gap: 10px; font-size: 12px; }
  .topbar-left { font-size: 12px; }
  .topbar-right { gap: 12px; }

  .nav { padding: 14px 20px; }
  .site-header.scrolled .nav { padding: 10px 20px; }
  .brand { font-size: 20px; gap: 8px; }
  .brand-mark { width: 28px; height: 28px; }

  .section-head { margin-bottom: 32px; gap: 16px; }
  .section-head p { max-width: 100%; }

  .card { padding: 20px; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .site-footer { padding: 56px 0 24px; margin-top: 48px; }
  .footer-bottom { font-size: 12px; gap: 16px; }
  .footer-legal { gap: 14px; }

  .btn-lg { padding: 14px 22px; font-size: 15px; }
  .hero-cta .btn, .cta-actions .btn { width: 100%; justify-content: center; }

  .page-hero { padding: 40px 0 56px; }
  .page-hero .lead { font-size: 17px; }
}

/* ===== Small phones ===== */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .topbar { font-size: 11px; }
  .topbar-inner { padding: 6px 16px; gap: 8px; }
  .topbar-left { font-size: 11px; line-height: 1.4; }
  .topbar-right a:first-child { display: none; }
  .nav { padding: 12px 16px; }

  .btn { padding: 10px 16px; font-size: 14px; }
  .btn-lg { padding: 12px 18px; font-size: 14px; }

  .section { padding: 40px 0; }
  .card { padding: 16px; border-radius: 12px; }
  .page-hero { padding: 32px 0 40px; }
  .page-hero h1 { font-size: clamp(30px, 9vw, 44px); }
}

/* ===== Tweaks panel ===== */
.tweaks-panel {
  position: fixed; bottom: 24px; right: 24px; z-index: 100;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow-lg);
  width: 260px; display: none; font-size: 14px;
}
.tweaks-panel.active { display: block; }
.tweaks-panel h5 { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-muted); font-weight: 600; font-family: var(--font-body); }
.tweaks-row { display: flex; gap: 8px; }
.tweak-swatch {
  flex: 1; height: 52px; border-radius: 10px; cursor: pointer; border: 2px solid transparent;
  display: flex; flex-direction: column; align-items: stretch; overflow: hidden;
  transition: border-color .15s;
}
.tweak-swatch.active { border-color: var(--ink); }
.tweak-swatch .sw-top { flex: 1; }
.tweak-swatch .sw-bot { height: 14px; }
.tweak-swatch span { font-size: 11px; padding: 3px 0; text-align: center; color: var(--ink-soft); }

/* ===== Page-specific helpers ===== */
.page-hero {
  padding: 56px 0 80px; border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}
.page-hero .eyebrow { margin-bottom: 16px; }
.page-hero h1 { max-width: 880px; }
.page-hero .lead { font-size: 19px; color: var(--ink-soft); max-width: 620px; margin: 24px 0 0; }
.breadcrumb { font-size: 13px; color: var(--ink-muted); margin-bottom: 24px; }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb .sep { margin: 0 8px; }