/* ============================================================
   agronomie.css — Terres Vivantes (révision complète)
   Palette : #0b1205 ardoise verte | #f59e0b ambre | #65a30d vert agronomie | #d97706 ocre
   Polices  : Playfair Display (display) + Nunito (corps) + DM Mono (code/labels)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400;1,700&family=Nunito:wght@400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

:root {
  --soil:    #0b1205;
  --soil2:   #101a08;
  --soil3:   #16270c;
  --card:    #0d1808;
  --border:  #1e3510;
  --border2: #2a4a18;
  --amber:   #f59e0b;
  --amber2:  #d97706;
  --amber3:  #b45309;
  --green:   #65a30d;
  --green2:  #4d7c0f;
  --green3:  #84cc16;
  --rust:    #c2410c;
  --blue:    #60a5fa;
  --teal:    #2dd4bf;
  --text:    #a3b899;
  --text-hi: #ecf5e8;
  --muted:   #3d6030;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito', system-ui, sans-serif;
  background: var(--soil);
  color: var(--text);
  line-height: 1.8;
  font-size: 1.01rem;
  overflow-x: hidden;
}

/* ── EARTH TEXTURE BACKGROUND ─────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse 70% 40% at 10% 20%, rgba(101,163,13,.07) 0%, transparent 55%),
    radial-gradient(ellipse 50% 60% at 90% 80%, rgba(245,158,11,.06) 0%, transparent 55%),
    radial-gradient(ellipse 40% 30% at 50% 50%, rgba(194,65,12,.04) 0%, transparent 60%);
  pointer-events: none; z-index: 0;
  animation: earth-breathe 14s ease-in-out infinite alternate;
}
@keyframes earth-breathe { 0%{opacity:.7} 100%{opacity:1} }

/* ── PROGRESS BAR ─────────────────────────────── */
#progress-bar {
  position: fixed; top: 0; left: 0;
  height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--green2), var(--amber), var(--amber3));
  z-index: 1000;
  box-shadow: 0 0 8px var(--amber);
  transition: width .1s linear;
}

/* ── NAV ──────────────────────────────────────── */
nav {
  position: fixed; top: 3px; left: 0; right: 0; z-index: 900;
  background: rgba(11,18,5,.97);
  backdrop-filter: blur(18px);
  border-bottom: 2px solid var(--amber3);
  display: flex; align-items: center; gap: 2px;
  padding: 0 28px; height: 54px; overflow-x: auto;
}
.nav-brand {
  font-family: 'Playfair Display', serif;
  font-weight: 700; font-style: italic; font-size: 1.1rem;
  color: var(--amber); text-decoration: none;
  margin-right: 20px; flex-shrink: 0;
  display: flex; align-items: center; gap: 6px;
}
.nav-brand::before { content: '🌾'; font-style: normal; font-size: .9rem; }
nav a:not(.nav-brand) {
  font-family: 'DM Mono', monospace;
  font-size: .65rem; color: var(--muted);
  text-decoration: none; padding: 5px 10px;
  border-radius: 4px; white-space: nowrap;
  transition: color .2s, background .2s;
  text-transform: uppercase; letter-spacing: .05em;
}
nav a:not(.nav-brand):hover, nav a.active {
  color: var(--amber); background: rgba(245,158,11,.09);
}

/* ── HERO ─────────────────────────────────────── */
.hero {
  position: relative; padding: 110px 52px 76px;
  overflow: hidden; z-index: 1;
  border-bottom: 1px solid var(--border2);
}
.hero-inner { max-width: 860px; position: relative; z-index: 2; }

.hero-eyebrow {
  font-family: 'DM Mono', monospace;
  font-size: .7rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--green3); border: 1px solid rgba(101,163,13,.3);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 22px;
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(101,163,13,.05);
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; background: var(--green3); border-radius: 50%;
  animation: pulse-g 2.4s infinite;
}
@keyframes pulse-g { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.3;transform:scale(1.5)} }

.hero h1 {
  font-family: 'Playfair Display', serif;
  font-weight: 900; font-size: clamp(3.5rem, 8vw, 7rem);
  line-height: .88; color: var(--text-hi); margin-bottom: 20px;
  letter-spacing: -.02em;
}
.hero h1 em { color: var(--amber); font-style: italic; }

.hero p.lead {
  font-size: 1.08rem; color: var(--text);
  max-width: 660px; line-height: 1.8; font-weight: 500;
}

/* ── STATS STRIP ──────────────────────────────── */
.stats-strip { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.stat {
  background: var(--card); border: 1px solid var(--border2);
  border-radius: 10px; padding: 14px 20px; flex: 1; min-width: 130px;
  position: relative; overflow: hidden;
  transition: transform .2s, border-color .2s;
}
.stat:hover { transform: translateY(-2px); border-color: var(--amber3); }
.stat::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0;
  height: 2px; background: linear-gradient(90deg, var(--green), var(--amber));
}
.stat .sv {
  font-family: 'Playfair Display', serif; font-weight: 700;
  font-size: 1.9rem; color: var(--amber); line-height: 1; display: block;
}
.stat .sl {
  font-family: 'DM Mono', monospace; font-size: .62rem;
  color: var(--muted); letter-spacing: .06em; text-transform: uppercase; margin-top: 4px;
}

/* ── LAYOUT ───────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 58px 36px; position: relative; z-index: 1; }
.two-col { display: grid; grid-template-columns: 1fr 288px; gap: 36px; }
@media (max-width: 940px) { .two-col { grid-template-columns: 1fr; } }

/* ── SECTIONS ─────────────────────────────────── */
.section {
  margin-bottom: 64px;
  opacity: 0; transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
}
.section.visible { opacity: 1; transform: none; }

.sec-label {
  font-family: 'DM Mono', monospace; font-size: .65rem;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--amber2); margin-bottom: 8px;
}
.section h2 {
  font-family: 'Playfair Display', serif; font-weight: 700;
  font-size: 2rem; color: var(--text-hi); letter-spacing: -.01em;
  padding-bottom: 12px; border-bottom: 1px solid var(--border2);
  margin-bottom: 22px; position: relative;
}
.section h2::after {
  content: ''; position: absolute; bottom: -1px; left: 0;
  height: 2px; width: 56px; background: var(--amber);
}
.section h3 {
  font-family: 'Playfair Display', serif; font-weight: 700;
  font-size: 1.15rem; color: var(--green3); margin: 24px 0 10px;
}

/* ── CARDS ────────────────────────────────────── */
.card {
  background: var(--card); border: 1px solid var(--border2);
  border-radius: 12px; padding: 20px 24px; margin-bottom: 16px;
  transition: border-color .25s, transform .2s;
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
}
.card:hover { border-color: rgba(245,158,11,.35); transform: translateY(-2px); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin: 18px 0; }

/* ── DOMAIN CARDS ─────────────────────────────── */
.domain-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 18px 0; }
.domain-card {
  background: var(--card); border: 1px solid var(--border2);
  border-radius: 12px; padding: 18px; text-align: center;
  transition: transform .2s, border-color .2s;
  border-top: 3px solid var(--amber);
}
.domain-card.green { border-top-color: var(--green); }
.domain-card.teal  { border-top-color: var(--teal); }
.domain-card.rust  { border-top-color: var(--rust); }
.domain-card.blue  { border-top-color: var(--blue); }
.domain-card:hover { transform: translateY(-4px); border-color: var(--amber2); }
.domain-icon { font-size: 2rem; display: block; margin-bottom: 10px; }
.domain-name {
  font-family: 'Playfair Display', serif; font-weight: 700;
  font-size: 1rem; color: var(--text-hi); margin-bottom: 6px;
}
.domain-desc { font-size: .83rem; color: var(--text); line-height: 1.55; }

/* ── SOIL HORIZON VISUAL ──────────────────────── */
.horizon-stack { display: flex; flex-direction: column; gap: 4px; margin: 18px 0; border-radius: 10px; overflow: hidden; }
.hz {
  padding: 14px 18px; display: flex; align-items: flex-start; gap: 14px;
  transition: filter .2s;
}
.hz:hover { filter: brightness(1.15); }
.hz.oo  { background: linear-gradient(90deg, #2d1a0a, #1a1005); border-left: 4px solid #a3622a; }
.hz.a   { background: linear-gradient(90deg, #251e0d, #1a1808); border-left: 4px solid #7a6b35; }
.hz.e   { background: linear-gradient(90deg, #1e2010, #181a0e); border-left: 4px solid #8a9060; }
.hz.b   { background: linear-gradient(90deg, #1a1e28, #141820); border-left: 4px solid #5b6580; }
.hz.c   { background: linear-gradient(90deg, #1c1e24, #161820); border-left: 4px solid #4a4e5a; }
.hz.r   { background: linear-gradient(90deg, #1c1a1c, #161418); border-left: 4px solid #3a3040; }
.hz-label {
  font-family: 'DM Mono', monospace; font-weight: 500;
  font-size: .8rem; min-width: 24px;
  color: var(--amber);
}
.hz-name  { font-weight: 700; color: var(--text-hi); font-size: .9rem; }
.hz-depth { font-family: 'DM Mono', monospace; font-size: .72rem; color: var(--muted); }
.hz-desc  { font-size: .85rem; color: var(--text); margin-top: 3px; }

/* ── BOX ──────────────────────────────────────── */
.box { border-radius: 10px; padding: 14px 18px; margin: 14px 0; border-left: 4px solid; font-size: .96rem; }
.box-amber  { background: rgba(245,158,11,.05); border-color: var(--amber); }
.box-green  { background: rgba(101,163,13,.05); border-color: var(--green); }
.box-teal   { background: rgba(45,212,191,.05); border-color: var(--teal); }
.box-rust   { background: rgba(194,65,12,.05);  border-color: var(--rust); }
.box-info   { background: rgba(96,165,250,.05); border-color: var(--blue); }

/* ── TAG ──────────────────────────────────────── */
.tag { display:inline-block; padding:3px 10px; border-radius:999px; font-family:'DM Mono',monospace; font-size:.64rem; letter-spacing:.06em; text-transform:uppercase; margin-bottom:8px; font-weight:500; }
.tag-amber  { background:rgba(245,158,11,.1);  color:var(--amber);  border:1px solid rgba(245,158,11,.25); }
.tag-green  { background:rgba(101,163,13,.1);  color:var(--green3); border:1px solid rgba(101,163,13,.25); }
.tag-teal   { background:rgba(45,212,191,.1);  color:var(--teal);   border:1px solid rgba(45,212,191,.25); }
.tag-rust   { background:rgba(194,65,12,.1);   color:var(--rust);   border:1px solid rgba(194,65,12,.25); }
.tag-blue   { background:rgba(96,165,250,.1);  color:var(--blue);   border:1px solid rgba(96,165,250,.25); }

/* ── TABLE ────────────────────────────────────── */
table { width:100%; border-collapse:collapse; margin:14px 0; font-size:.92rem; }
th { background:var(--soil3); color:var(--amber); font-family:'DM Mono',monospace; font-size:.67rem; letter-spacing:.08em; text-transform:uppercase; padding:9px 13px; text-align:left; border-bottom:1px solid var(--border2); }
td { padding:9px 13px; border-bottom:1px solid var(--border); color:var(--text); vertical-align:top; }
tr:hover td { background:rgba(245,158,11,.02); }

/* ── SUCCESSION STEPS ─────────────────────────── */
.step-flow { display:flex; gap:0; margin:18px 0; overflow-x:auto; }
.step { flex:1; min-width:110px; text-align:center; padding:14px 10px; background:var(--card); border-top:3px solid var(--amber); position:relative; }
.step.green-top { border-top-color: var(--green); }
.step:not(:last-child)::after { content:'→'; position:absolute; right:-10px; top:50%; transform:translateY(-50%); color:var(--amber); z-index:1; font-family:'DM Mono',monospace; }
.step-icon { font-size:1.6rem; display:block; margin-bottom:6px; }
.step-name { font-family:'Playfair Display',serif; font-weight:700; font-size:.9rem; color:var(--text-hi); }
.step-sub  { font-size:.76rem; color:var(--text); margin-top:4px; line-height:1.4; }

/* ── TIMELINE ─────────────────────────────────── */
.timeline { padding-left:28px; position:relative; }
.timeline::before { content:''; position:absolute; left:0; top:6px; bottom:6px; width:2px; background:linear-gradient(to bottom,var(--amber),var(--green)); }
.tl-item { position:relative; margin-bottom:20px; }
.tl-item::before { content:''; position:absolute; left:-35px; top:7px; width:8px; height:8px; background:var(--amber); border-radius:50%; border:2px solid var(--soil); box-shadow:0 0 5px var(--amber2); }
.tl-yr   { font-family:'DM Mono',monospace; font-size:.76rem; color:var(--amber2); }
.tl-who  { font-family:'Playfair Display',serif; font-weight:700; color:var(--text-hi); font-size:1rem; }
.tl-desc { font-size:.9rem; color:var(--text); }

/* ── SIDEBAR ──────────────────────────────────── */
.sidebar { position:sticky; top:68px; }
.sb-card { background:var(--card); border:1px solid var(--border2); border-radius:12px; padding:16px 18px; margin-bottom:14px; box-shadow:0 4px 16px rgba(0,0,0,.15); }
.sb-card h3 { font-family:'Playfair Display',serif; font-weight:700; font-style:italic; font-size:.95rem; color:var(--amber); margin-bottom:10px; padding-bottom:8px; border-bottom:1px solid var(--border); }
.sb-toc a { display:block; padding:5px 8px; font-family:'DM Mono',monospace; font-size:.66rem; color:var(--muted); text-decoration:none; border-radius:4px; transition:color .2s,background .2s; text-transform:uppercase; letter-spacing:.04em; }
.sb-toc a:hover, .sb-toc a.active { color:var(--amber); background:rgba(245,158,11,.08); }

ul { padding-left:22px; } li { margin:5px 0; } ul li::marker { color:var(--amber2); }
strong { color:var(--text-hi); font-weight:700; }
code { font-family:'DM Mono',monospace; background:var(--soil3); color:var(--amber); padding:2px 7px; border-radius:4px; font-size:.87em; }

#back-top { position:fixed; bottom:28px; right:28px; width:44px; height:44px; background:rgba(245,158,11,.15); border:1px solid var(--amber2); color:var(--amber); border-radius:50%; cursor:pointer; font-size:1.1rem; display:flex; align-items:center; justify-content:center; opacity:0; pointer-events:none; transition:opacity .3s,transform .3s; z-index:800; font-family:'Playfair Display',serif; font-weight:700; }
#back-top.visible { opacity:1; pointer-events:auto; }
#back-top:hover { transform:translateY(-4px); background:rgba(245,158,11,.25); }

footer { border-top:1px solid var(--border2); padding:26px 36px; text-align:center; color:var(--muted); font-family:'DM Mono',monospace; font-size:.7rem; letter-spacing:.08em; position:relative; z-index:1; }

@media (max-width:768px) {
  .hero { padding:88px 22px 50px; }
  .container { padding:36px 18px; }
  nav { padding:0 14px; }
}