/* ==========================================================================
   TRIMEX CONGO — Design system
   Palette : pin/forêt profond + amber teck + papier sable froid
   Typo : Fraunces (titres) + IBM Plex Sans (texte, UI, données)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,650&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root{
  /* Palette dérivée du logo Trimex Congo (feuille/couronne verte) */
  --color-bg: #FBFBF7;
  --color-surface: #F3F6EE;
  --color-surface-2: #ECF1E3;
  --color-ink: #1A2E10;
  --color-ink-soft: #4B5C40;
  --color-primary: #37781C;
  --color-primary-dark: #1F4710;
  --color-accent: #8ABC28;
  --color-accent-soft: #E4EFD6;
  --color-line: #DCE5D0;
  --color-line-dark: rgba(241,246,236,0.22);
  --color-on-dark: #F1F6EC;

  --font-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --font-body: 'IBM Plex Sans', -apple-system, 'Segoe UI', sans-serif;

  --container: 1180px;
  --radius: 3px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  margin:0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.6em 0;
  color: var(--color-primary-dark);
  letter-spacing: -0.01em;
}
h1{ font-size: clamp(2rem, 1.5rem + 2.2vw, 3.4rem); font-weight: 650; }
h2{ font-size: clamp(1.5rem, 1.25rem + 1.1vw, 2.2rem); }
h3{ font-size: 1.3rem; }
h4{ font-size: 1.05rem; font-family: var(--font-body); font-weight: 600; color: var(--color-ink); }

p{ margin: 0 0 1.1em 0; max-width: 62ch; }
p.lead{ font-size: 1.2rem; color: var(--color-ink-soft); max-width: 54ch; }

a{ color: var(--color-primary); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover{ color: var(--color-primary-dark); }

ul, ol{ padding-left: 1.2em; }
li{ margin-bottom: 0.4em; }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section{
  padding: var(--space-6) 0;
  border-top: 1px solid var(--color-line);
}
.section:first-of-type{ border-top: none; }
.section--dark{
  background: var(--color-primary-dark);
  color: var(--color-on-dark);
  border-top: none;
}
.section--dark h1, .section--dark h2, .section--dark h3{ color: var(--color-on-dark); }
.section--dark p{ color: rgba(241,246,236,0.82); }
.section--dark a{ color: var(--color-on-dark); }
.section--dark a:hover{ color: var(--color-accent-soft); }
.section--tight{ padding: var(--space-4) 0; }

.grid{ display:grid; gap: var(--space-4); }
.grid-2{ grid-template-columns: 1fr 1fr; }
.grid-3{ grid-template-columns: repeat(3,1fr); }
.grid-4{ grid-template-columns: repeat(4,1fr); }
@media (max-width: 860px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; }
}

.eyebrow{
  display:inline-block;
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.6em;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:0.5em;
  padding: 0.85em 1.5em;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight:600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary{ background: var(--color-primary); color:#fff; }
.btn-primary:hover{ background: var(--color-primary-dark); color:#fff; }
.btn-outline{ background:transparent; border-color: currentColor; color: var(--color-ink); }
.btn-outline:hover{ background: var(--color-ink); color: var(--color-bg); border-color: var(--color-ink); }
.section--dark .btn-outline{ color: var(--color-on-dark); }
.section--dark .btn-outline:hover{ background: var(--color-on-dark); color: var(--color-primary-dark); }
.btn-accent{ background: var(--color-accent); color: var(--color-ink); }
.btn-accent:hover{ background:#79a622; color: var(--color-ink); }
.btn-row{ display:flex; gap:1em; flex-wrap:wrap; margin-top: 1.6em; }
.btn[disabled]{ opacity:0.5; cursor:not-allowed; }

/* ---------- Header / Nav ---------- */
.site-header{
  position: sticky; top:0; z-index: 50;
  background: rgba(251,251,247,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-line);
}
.nav-wrap{
  max-width: var(--container);
  margin:0 auto;
  padding: 0.9rem 1.5rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 1.5rem;
}
.brand{
  display:flex; align-items:center;
  text-decoration:none;
  line-height:0;
}
.brand-logo{ height:46px; width:auto; display:block; }
.brand-logo--footer{ height:42px; }
@media (max-width:480px){ .brand-logo{ height:38px; } }

.nav-links{
  display:flex; align-items:center; gap: 1.6rem;
  list-style:none; margin:0; padding:0;
  flex: 1 1 auto;
  justify-content:flex-end;
  min-width:0;
}
.nav-links a{
  color: var(--color-ink); text-decoration:none; font-weight:500; font-size:0.97rem;
  padding: 0.3em 0; border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.is-active{ color: var(--color-primary); border-bottom-color: var(--color-primary-dark); }

.nav-actions{ display:flex; align-items:center; gap:0.9rem; flex-shrink:0; }
.nav-actions .btn{ white-space:nowrap; }

.nav-toggle{
  display:none; background:none; border:none; cursor:pointer; flex-shrink:0;
  width:40px; height:40px; align-items:center; justify-content:center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:''; display:block; width:22px; height:2px; background: var(--color-ink); position:relative; transition:0.2s;
}
.nav-toggle span::before{ position:absolute; top:-7px; }
.nav-toggle span::after{ position:absolute; top:7px; }

@media (max-width: 900px){
  .nav-toggle{ display:flex; }
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    background: var(--color-surface);
    flex-direction:column; align-items:flex-start;
    gap:0; padding: 0.5rem 1.5rem 1rem;
    border-bottom:1px solid var(--color-line);
    display:none;
  }
  .nav-links.is-open{ display:flex; }
  .nav-links li{ width:100%; margin:0; }
  .nav-links a{ display:block; padding:0.7em 0; border-bottom:1px solid var(--color-line); white-space:normal; }
}

@media (max-width: 420px){
  .nav-actions{ gap:0.5rem; }
  .nav-actions .btn{ padding:0.6em 0.9em; font-size:0.85rem; }
}


/* ---------- Breadcrumb ---------- */
.breadcrumb{
  font-size:0.88rem; color: var(--color-ink-soft);
  padding: 1rem 0 0;
}
.breadcrumb a{ color: var(--color-ink-soft); text-decoration:none; }
.breadcrumb a:hover{ color: var(--color-primary); }

/* ---------- Hero ---------- */
.hero{
  display:grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-5);
  align-items:center;
  padding: var(--space-5) 0 var(--space-6);
}
@media (max-width: 900px){
  .hero{ grid-template-columns:1fr; }
  .hero-art{ order:-1; max-width:260px; margin:0 auto 1rem; }
}
.hero-art svg{ width:100%; height:auto; }
.hero-art .draw-path{
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw 2.2s ease forwards 0.2s;
}
@keyframes draw{ to{ stroke-dashoffset:0; } }

/* ---------- Cards / lists ---------- */
.card{
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  padding: var(--space-3);
  border-radius: var(--radius);
}
.card--feature{ border-top: 3px solid var(--color-primary); }
.card h3{ margin-bottom:0.4em; }
.card a.card-link{ text-decoration:none; }

.path-card{
  border:1px solid var(--color-line);
  background: var(--color-surface);
  padding: var(--space-4);
  display:flex; flex-direction:column; gap: 0.8rem;
  text-decoration:none; color:inherit;
  transition: border-color 0.15s ease;
}
.path-card:hover{ border-color: var(--color-primary-dark); }
.path-card svg{ width:46px; height:46px; color: var(--color-primary); }
.path-card h3{ color: var(--color-primary-dark); }

.service-list{ list-style:none; padding:0; margin:0; border-top:1px solid var(--color-line); }
.service-list li{ margin:0; border-bottom:1px solid var(--color-line); }
.service-list a{
  display:flex; justify-content:space-between; align-items:center; gap:1rem;
  padding: 1.1rem 0; text-decoration:none; color: var(--color-ink);
}
.service-list a:hover{ color: var(--color-primary); }
.service-list .tag{ font-size:0.85rem; color: var(--color-ink-soft); font-weight:500; }

/* ---------- Pending evidence component ---------- */
.pending{
  border: 1px dashed rgba(26,46,16,0.4);
  background: var(--color-surface-2);
  padding: var(--space-3);
  border-radius: var(--radius);
  display:flex; gap:0.9rem; align-items:flex-start;
}
.pending svg{ width:22px; height:22px; flex-shrink:0; color: var(--color-primary); margin-top:2px; }
.pending strong{ display:block; color: var(--color-primary-dark); margin-bottom:0.2em; }
.pending p{ margin:0; font-size:0.95rem; color: var(--color-ink-soft); }
.section--dark .pending{ background: rgba(241,246,236,0.06); border-color: rgba(241,246,236,0.35); }
.section--dark .pending p{ color: rgba(241,246,236,0.75); }

/* ---------- Table (trust / compliance) ---------- */
.table-wrap{ overflow-x:auto; }
table.trust{ width:100%; border-collapse:collapse; font-size:0.95rem; }
table.trust th, table.trust td{ text-align:left; padding:0.85em 1em; border-bottom:1px solid var(--color-line); vertical-align:top; }
table.trust th{ font-family: var(--font-body); font-weight:600; color: var(--color-primary-dark); background: var(--color-surface-2); }

/* ---------- Steps (genuinely sequential content only) ---------- */
.steps{ counter-reset: step; list-style:none; padding:0; margin:0; }
.steps li{
  counter-increment: step;
  display:grid; grid-template-columns: 2.4rem 1fr; gap:1rem;
  padding: 1.1rem 0; border-bottom:1px solid var(--color-line);
}
.steps li::before{
  content: counter(step);
  font-family: var(--font-display); font-weight:600; font-size:1.2rem;
  color: var(--color-accent);
}

/* ---------- Forms ---------- */
.funnel{ display:none; }
.funnel.is-active{ display:block; }
.form-tabs{ display:flex; gap:0; border-bottom:1px solid var(--color-line); margin-bottom: var(--space-3); }
.form-tab{
  padding: 0.9em 1.4em; background:none; border:none; cursor:pointer;
  font-family: var(--font-body); font-weight:600; font-size:1rem;
  color: var(--color-ink-soft); border-bottom:2px solid transparent; margin-bottom:-1px;
}
.form-tab.is-active{ color: var(--color-primary-dark); border-bottom-color: var(--color-primary-dark); }

.field{ margin-bottom: 1.3rem; }
.field label{ display:block; font-weight:600; font-size:0.92rem; margin-bottom:0.4em; }
.field .hint{ font-size:0.85rem; color: var(--color-ink-soft); margin-top:0.3em; }
.field input, .field select, .field textarea{
  width:100%; padding:0.75em 0.9em; font-family:var(--font-body); font-size:1rem;
  border:1px solid var(--color-line); border-radius: var(--radius); background:#fff; color: var(--color-ink);
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline: 2px solid var(--color-primary); outline-offset:1px; border-color: var(--color-primary);
}
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
@media (max-width:640px){ .field-row{ grid-template-columns:1fr; } }
.form-step{ display:none; }
.form-step.is-active{ display:block; }
.form-progress{ display:flex; gap:0.5rem; margin-bottom:1.6rem; }
.form-progress span{ height:4px; flex:1; background: var(--color-line); border-radius:2px; }
.form-progress span.is-done{ background: var(--color-primary); }
.form-confirm{ display:none; }
.form-confirm.is-active{ display:block; }
.form-confirm svg{ width:40px; height:40px; color: var(--color-primary); margin-bottom:0.8rem; }

/* ---------- Modale de choix de cotation ---------- */
.modal-overlay{
  position:fixed; inset:0; z-index:200;
  background: rgba(26,46,16,0.55);
  display:flex; align-items:center; justify-content:center;
  padding: 1.5rem;
}
.modal-overlay[hidden]{ display:none; }
.modal-box{
  position:relative;
  background: var(--color-surface);
  border:1px solid var(--color-line);
  border-radius: var(--radius);
  max-width: 480px; width:100%;
  padding: var(--space-4);
}
.modal-close{
  position:absolute; top:0.7rem; right:0.7rem;
  width:36px; height:36px;
  display:flex; align-items:center; justify-content:center;
  background:none; border:none; cursor:pointer;
  font-size:1.6rem; line-height:1; color: var(--color-ink-soft);
  border-radius: var(--radius);
}
.modal-close:hover{ color: var(--color-ink); background: var(--color-surface-2); }
.modal-choices{ display:grid; gap:1rem; margin-top:1.5rem; }
.modal-choice{
  display:flex; align-items:center; gap:1rem;
  padding: 1.1rem; border:1px solid var(--color-line); border-radius: var(--radius);
  text-decoration:none; color:inherit;
  transition: border-color 0.15s ease;
}
.modal-choice:hover{ border-color: var(--color-primary-dark); }
.modal-choice svg{ width:34px; height:34px; flex-shrink:0; color: var(--color-primary); }
.modal-choice h3{ margin:0 0 0.2em; color: var(--color-primary-dark); }
.modal-choice p{ margin:0; font-size:0.88rem; color: var(--color-ink-soft); }

/* ---------- Footer ---------- */
.site-footer{ background: var(--color-primary-dark); color: var(--color-on-dark); }
.footer-grid{
  display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-4);
  padding: var(--space-5) 0 var(--space-4);
}
@media (max-width: 860px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px){ .footer-grid{ grid-template-columns: 1fr; } }
.site-footer h4{ color: var(--color-on-dark); font-family:var(--font-body); font-size:0.95rem; margin-bottom:0.9em; }
.site-footer ul{ list-style:none; padding:0; margin:0; }
.site-footer li{ margin-bottom:0.55em; }
.site-footer a{ color: rgba(241,246,236,0.82); text-decoration:none; font-size:0.95rem; }
.site-footer a:hover{ color: var(--color-accent-soft); }
.footer-bottom{
  border-top:1px solid var(--color-line-dark);
  padding: 1.3rem 0 1.8rem;
  display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap;
  font-size:0.85rem; color: rgba(241,246,236,0.65);
}
.footer-bottom a{ color: rgba(241,246,236,0.65); }

/* ---------- Utility ---------- */
.mt-0{ margin-top:0; }
.text-soft{ color: var(--color-ink-soft); }
.max-prose{ max-width: 68ch; }
.visually-hidden{
  position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap;
}
:focus-visible{ outline: 2px solid var(--color-primary-dark); outline-offset: 2px; }