/* ============================================
   LES GRAINES LIBRES — Feuille de style
   Version 1.0 · 2026
   ============================================ */

/* VARIABLES */
:root {
  --vert:         #2E5E35;
  --vert-mid:     #4A8A52;
  --vert-clair:   #A8C8A0;
  --vert-pale:    #D4E8D0;
  --creme:        #F7F2E8;
  --creme-fonce:  #EDE5D2;
  --terre:        #9B6E4A;
  --terre-claire: #C4935A;
  --blanc:        #FDFAF4;
  --texte:        #1E231E;
  --gris:         #6B6B5A;
  --shadow-sm:    0 2px 12px rgba(30,35,30,.07);
  --shadow-md:    0 6px 28px rgba(30,35,30,.10);
  --shadow-lg:    0 16px 56px rgba(30,35,30,.14);
  --radius-sm:    8px;
  --radius-md:    14px;
  --radius-lg:    20px;
  --transition:   .22s cubic-bezier(.4,0,.2,1);
  --max-w:        1080px;
  --nav-h:        72px;
}

/* RESET */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Jost', system-ui, sans-serif;
  font-weight: 300;
  color: var(--texte);
  background: var(--blanc);
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* TYPOGRAPHIE */
h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 700;
  line-height: 1.08;
  color: var(--vert);
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.1rem; }

.serif { font-family: 'Cormorant Garamond', Georgia, serif; }
.italic { font-style: italic; }
.light { font-weight: 300; }

p { font-size: 1rem; font-weight: 300; color: var(--gris); line-height: 1.75; }

/* LAYOUT */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 80px 0; }

.section-eyebrow {
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--vert-mid);
  margin-bottom: 10px;
  display: block;
}

.section-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--vert);
  line-height: 1.05;
  margin-bottom: 6px;
}

.section-title em { font-style: italic; font-weight: 300; }

.section-divider {
  width: 32px; height: 2px;
  background: linear-gradient(90deg, var(--terre-claire), var(--vert-mid));
  border-radius: 1px;
  margin: 14px 0 22px;
}

.section-intro {
  font-size: 1rem; font-weight: 300;
  color: var(--gris); line-height: 1.75;
  max-width: 560px; margin-bottom: 48px;
}

/* NAVIGATION */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: var(--vert);
  z-index: 1000;
  transition: box-shadow var(--transition);
}

.nav.scrolled { box-shadow: var(--shadow-lg); }

.nav-inner {
  display: flex; align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex; align-items: center; gap: 12px;
  flex-shrink: 0;
}

.nav-logo { width: 32px; height: auto; }

.nav-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem; font-weight: 700;
  color: white; line-height: 1;
}

.nav-name em { font-style: italic; font-weight: 300; color: var(--vert-clair); }

.nav-links {
  display: flex; align-items: center; gap: 32px;
}

.nav-links a {
  font-size: .78rem; font-weight: 500;
  letter-spacing: .06em; color: rgba(255,255,255,.62);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute; bottom: -3px; left: 0; right: 0;
  height: 1px; background: var(--vert-clair);
  transform: scaleX(0); transition: transform var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: white; }

.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }

.nav-cta {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.22);
  color: white !important;
  padding: 7px 18px;
  border-radius: 24px;
  font-size: .75rem !important;
  font-weight: 600 !important;
  letter-spacing: .08em;
  transition: background var(--transition) !important;
}

.nav-cta:hover { background: rgba(255,255,255,.22) !important; }
.nav-cta::after { display: none !important; }

/* HAMBURGER */
.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  cursor: pointer; padding: 6px;
  background: none; border: none; outline: none;
}

.nav-toggle span {
  display: block; width: 22px; height: 1.5px;
  background: white; border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* MOBILE NAV */
.nav-mobile {
  position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--vert);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 28px;
  transform: translateX(100%); transition: transform var(--transition);
  z-index: 999;
}

.nav-mobile.open { transform: translateX(0); }

.nav-mobile a {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem; font-weight: 700;
  color: white; opacity: .7;
  transition: opacity var(--transition);
}

.nav-mobile a:hover { opacity: 1; }

/* HERO */
.hero {
  min-height: 100vh;
  background: var(--vert);
  display: flex; align-items: center;
  padding-top: var(--nav-h);
  position: relative; overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute; right: -120px; top: -120px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(168,200,160,.07) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute; left: -80px; bottom: -80px;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(196,147,90,.05) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
  padding: 80px 0;
}

.hero-eyebrow {
  font-size: .6rem; font-weight: 700;
  letter-spacing: .26em; text-transform: uppercase;
  color: var(--vert-clair); opacity: .7;
  margin-bottom: 14px; display: block;
}

.hero-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.6rem, 5vw, 4.4rem);
  font-weight: 700; color: white; line-height: .97;
  letter-spacing: -.015em; margin-bottom: 8px;
}

.hero-title em {
  font-style: italic; font-weight: 300;
  color: var(--vert-clair);
}

.hero-slogan {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1rem; font-style: italic; font-weight: 300;
  color: rgba(255,255,255,.45); letter-spacing: .03em;
  margin-top: 14px;
}

.hero-text {
  font-size: .95rem; font-weight: 300;
  color: rgba(255,255,255,.65); line-height: 1.75;
  max-width: 420px; margin-top: 20px;
}

.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }

.hero-right {
  display: flex; align-items: center; justify-content: center;
}

.hero-logo-wrap {
  opacity: .55; transition: opacity var(--transition);
}

.hero-logo-wrap:hover { opacity: .75; }

/* BOUTONS */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 26px; border-radius: 32px;
  font-size: .78rem; font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase;
  transition: all var(--transition); cursor: pointer;
  border: none; outline: none;
}

.btn-primary {
  background: white; color: var(--vert);
  box-shadow: 0 4px 18px rgba(0,0,0,.15);
}

.btn-primary:hover {
  background: var(--creme);
  box-shadow: 0 6px 24px rgba(0,0,0,.2);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid rgba(255,255,255,.3);
  color: white;
}

.btn-outline:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.5);
}

.btn-vert {
  background: var(--vert); color: white;
  box-shadow: 0 4px 18px rgba(46,94,53,.25);
}

.btn-vert:hover {
  background: var(--vert-mid);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(46,94,53,.3);
}

/* STATS RAPIDES */
.quick-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--vert-pale);
  border-radius: var(--radius-md); overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.stat-item {
  background: var(--blanc); padding: 24px 20px;
  text-align: center;
}

.stat-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem; font-weight: 700; color: var(--vert);
  line-height: 1; display: block;
}

.stat-label {
  font-size: .7rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--gris); margin-top: 4px; display: block;
}

/* CARDS */
.card {
  background: var(--blanc);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  border: 1px solid var(--creme-fonce);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-accent {
  height: 3px; border-radius: 3px 3px 0 0;
  background: linear-gradient(90deg, var(--vert), var(--vert-clair));
  margin: -28px -26px 22px; border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.card-accent.terre { background: linear-gradient(90deg, var(--terre), var(--terre-claire)); }

.card-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem; font-weight: 700; color: var(--vert);
  margin-bottom: 10px; line-height: 1.15;
}

.card-text { font-size: .9rem; line-height: 1.7; }

/* VALEURS PILLS */
.valeurs-grid { display: flex; flex-wrap: wrap; gap: 8px; }

.valeur-pill {
  background: var(--creme-fonce);
  border: 1px solid rgba(46,94,53,.18);
  border-radius: 24px; padding: 6px 16px;
  font-size: .82rem; font-weight: 500; color: var(--vert);
  display: flex; align-items: center; gap: 6px;
  transition: all var(--transition);
}

.valeur-pill:hover {
  background: var(--vert-pale);
  border-color: var(--vert-mid);
}

.valeur-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--vert-mid); flex-shrink: 0;
}

/* NATURE SECTION */
.nature-section {
  background: var(--vert); padding: 80px 0;
  position: relative; overflow: hidden;
}

.nature-section::before {
  content: '';
  position: absolute; right: -60px; top: -60px;
  width: 300px; height: 300px; border-radius: 50%;
  background: rgba(168,200,160,.06);
}

.nature-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: center;
}

.nature-eyebrow {
  font-size: .6rem; font-weight: 700;
  letter-spacing: .26em; text-transform: uppercase;
  color: var(--vert-clair); opacity: .65; margin-bottom: 12px;
}

.nature-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700; color: white; line-height: 1.08;
  margin-bottom: 18px;
}

.nature-title em { font-style: italic; font-weight: 300; color: var(--vert-clair); }

.nature-text {
  font-size: .95rem; font-weight: 300;
  color: rgba(255,255,255,.68); line-height: 1.75;
  margin-bottom: 14px;
}

.nature-logo-deco { opacity: .12; }

/* INFO BAND */
.info-band {
  background: var(--creme-fonce); padding: 48px 0;
  border-top: 1px solid var(--vert-pale);
  border-bottom: 1px solid var(--vert-pale);
}

.info-band-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--vert-pale);
  border-radius: var(--radius-md); overflow: hidden;
}

.info-band-item {
  background: var(--creme-fonce); padding: 24px 20px;
  text-align: center;
}

.info-band-label {
  font-size: .6rem; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--vert-mid); margin-bottom: 4px;
}

.info-band-value {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem; font-weight: 600; color: var(--texte);
  line-height: 1.3;
}

/* CITATION */
.citation-block {
  border-left: 2px solid var(--terre-claire);
  padding: 12px 0 12px 20px; margin: 28px 0;
}

.citation-text {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.35rem; font-style: italic;
  font-weight: 300; color: var(--terre);
  line-height: 1.4;
}

/* LISTE PÉDAGO */
.peda-list { display: flex; flex-direction: column; gap: 10px; }

.peda-item {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: .92rem; font-weight: 300; color: var(--gris);
  line-height: 1.5; padding: 12px 16px;
  background: var(--blanc); border-radius: var(--radius-sm);
  border: 1px solid var(--creme-fonce);
}

.peda-item-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--vert-mid); flex-shrink: 0;
  margin-top: 6px;
}

.peda-item strong { color: var(--texte); font-weight: 600; }

/* GRILLE 2 COL */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

/* TIMELINE / ETAPES */
.timeline { display: flex; flex-direction: column; gap: 0; }

.timeline-item {
  display: flex; gap: 20px; padding-bottom: 32px;
  position: relative;
}

.timeline-item:not(:last-child)::before {
  content: '';
  position: absolute; left: 14px; top: 28px; bottom: 0;
  width: 1px; background: var(--vert-pale);
}

.timeline-dot {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--vert); border: 3px solid var(--vert-pale);
  flex-shrink: 0; display: flex; align-items: center;
  justify-content: center;
}

.timeline-dot-inner {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--vert-clair);
}

.timeline-content { padding-top: 3px; }

.timeline-label {
  font-size: .65rem; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--vert-mid); margin-bottom: 4px;
}

.timeline-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem; font-weight: 700; color: var(--texte);
  margin-bottom: 6px;
}

.timeline-text { font-size: .88rem; color: var(--gris); line-height: 1.6; }

/* FORM */
.form-group { margin-bottom: 20px; }

.form-label {
  display: block; font-size: .72rem; font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--vert-mid); margin-bottom: 8px;
}

.form-input, .form-select, .form-textarea {
  width: 100%; padding: 13px 16px;
  background: var(--blanc); border: 1.5px solid var(--creme-fonce);
  border-radius: var(--radius-sm); font-family: 'Jost', sans-serif;
  font-size: .92rem; font-weight: 300; color: var(--texte);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--vert-mid);
  box-shadow: 0 0 0 3px rgba(74,138,82,.12);
}

.form-textarea { resize: vertical; min-height: 130px; }

.form-note {
  font-size: .78rem; font-weight: 300; color: var(--gris);
  margin-top: 6px; line-height: 1.5;
}

/* PAGE HERO (pages intérieures) */
.page-hero {
  background: var(--vert);
  padding: calc(var(--nav-h) + 60px) 0 60px;
  position: relative; overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute; right: -80px; top: -80px;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(168,200,160,.06) 0%, transparent 70%);
}

.page-hero-eyebrow {
  font-size: .6rem; font-weight: 700;
  letter-spacing: .26em; text-transform: uppercase;
  color: var(--vert-clair); opacity: .65; margin-bottom: 10px;
}

.page-hero-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-weight: 700; color: white; line-height: 1;
  margin-bottom: 14px;
}

.page-hero-title em { font-style: italic; font-weight: 300; color: var(--vert-clair); }

.page-hero-sub {
  font-size: .95rem; font-weight: 300;
  color: rgba(255,255,255,.55); line-height: 1.7;
  max-width: 500px;
}

/* ENCART CONVICTION */
.encart-conviction {
  background: var(--vert); border-radius: var(--radius-md);
  padding: 28px 30px; position: relative; overflow: hidden;
}

.encart-conviction::before {
  content: '';
  position: absolute; top: -30px; right: -30px;
  width: 120px; height: 120px; border-radius: 50%;
  background: rgba(168,200,160,.1);
}

.encart-label {
  font-size: .58rem; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--vert-clair); opacity: .65; margin-bottom: 8px;
}

.encart-text {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem; font-style: italic;
  font-weight: 400; color: white; line-height: 1.35;
}

/* FOOTER */
footer {
  background: var(--vert); padding: 56px 0 32px;
}

.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 48px; padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.4rem; font-weight: 700; color: white;
  margin: 12px 0 6px; line-height: 1;
}

.footer-brand-name em { font-style: italic; font-weight: 300; color: var(--vert-clair); }

.footer-slogan {
  font-family: 'Cormorant Garamond', serif;
  font-size: .92rem; font-style: italic;
  color: rgba(255,255,255,.38);
}

.footer-col-title {
  font-size: .6rem; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase;
  color: var(--vert-clair); opacity: .6; margin-bottom: 16px;
}

.footer-links { display: flex; flex-direction: column; gap: 8px; }

.footer-links a {
  font-size: .82rem; font-weight: 300;
  color: rgba(255,255,255,.5); transition: color var(--transition);
}

.footer-links a:hover { color: white; }

.footer-bottom {
  padding-top: 24px; display: flex;
  justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}

.footer-bottom-text {
  font-size: .72rem; font-weight: 300;
  color: rgba(255,255,255,.22); letter-spacing: .06em;
}

/* NOTIFICATION */
.notif {
  display: none; padding: 14px 18px;
  border-radius: var(--radius-sm); font-size: .88rem;
  font-weight: 400; margin-top: 16px;
}

.notif.success { background: #EEF6EE; color: var(--vert); border-left: 3px solid var(--vert-mid); }
.notif.error   { background: #FBF0EC; color: #7a3a20; border-left: 3px solid var(--terre); }
.notif.show    { display: block; }

/* ANIMATIONS */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity .55s ease, transform .55s ease;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

/* UTILITAIRES */
.text-center { text-align: center; }
.text-white  { color: white; }
.text-gris   { color: var(--gris); }
.text-terre  { color: var(--terre); }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.bg-creme  { background: var(--creme); }
.bg-vert   { background: var(--vert); }

/* RESPONSIVE */
@media (max-width: 900px) {
  section { padding: 60px 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-right { display: none; }
  .nature-inner { grid-template-columns: 1fr; gap: 36px; }
  .info-band-grid { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .quick-stats { grid-template-columns: 1fr; gap: 1px; }
  .info-band-grid { grid-template-columns: 1fr; }
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.75rem; }
}

@media (min-width: 701px) {
  .nav-mobile { display: none !important; }
}

/* PRINT */
@media print {
  .nav, .nav-mobile, footer { display: none; }
  .hero, .page-hero { min-height: auto; padding: 40px 0; }
  section { padding: 40px 0; }
}