.hero{min-height:100vh;display:grid;grid-template-columns:1fr 1fr;padding:80px 60px 80px;gap:80px;align-items:center;position:relative;overflow:hidden;}
  .hero::before{content:'';position:absolute;top:-200px;right:-200px;width:600px;height:600px;background:radial-gradient(circle,rgba(74,20,140,0.12) 0%,transparent 70%);pointer-events:none;}
  .hero-eyebrow{font-family:'DM Mono',monospace;font-size:11px;letter-spacing:4px;color:var(--gold);text-transform:uppercase;margin-bottom:24px;display:flex;align-items:center;gap:12px;}
  .hero-eyebrow::before{content:'';width:32px;height:1px;background:var(--gold);}
  .hero-title{font-family:'DM Serif Display',serif;font-size:clamp(36px,3.8vw,54px);line-height:1.08;margin-bottom:28px;letter-spacing:-0.5px;}
  .hero-title em{font-style:italic;color:var(--gold);}
  .hero-subtitle{font-size:16px;line-height:1.75;color:var(--text-muted);max-width:480px;margin-bottom:40px;}
  .hero-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap;}
  .hero-stats{display:flex;gap:40px;margin-top:56px;padding-top:40px;border-top:1px solid var(--border);}
  .stat-value{font-family:'DM Serif Display',serif;font-size:32px;display:block;}
  .stat-label{font-family:'DM Mono',monospace;font-size:10px;letter-spacing:2px;color:var(--text-muted);text-transform:uppercase;margin-top:4px;display:block;}

  /* Hero layers */
  .hero-right{display:flex;flex-direction:column;gap:8px;}
  .layer-preview{border:1px solid var(--border);padding:18px 24px;display:flex;align-items:center;justify-content:space-between;position:relative;overflow:hidden;transition:all 0.3s;cursor:pointer;text-decoration:none;color:inherit;}
  .layer-preview::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;}
  .layer-preview:hover{border-color:var(--border-active);transform:translateX(4px);}
  .lp-A{background:rgba(42,82,152,0.12);} .lp-A::before{background:var(--A-light);}
  .lp-H{background:rgba(139,37,0,0.12);} .lp-H::before{background:var(--H-light);}
  .lp-R{background:rgba(27,94,32,0.12);} .lp-R::before{background:var(--R-light);}
  .lp-C{background:rgba(230,81,0,0.12);} .lp-C::before{background:var(--C-light);}
  .lp-I{background:rgba(74,20,140,0.15);} .lp-I::before{background:var(--I-light);}
  .layer-letter{font-family:'DM Serif Display',serif;font-size:28px;opacity:0.9;}
  .lp-A .layer-letter{color:var(--A-light);} .lp-H .layer-letter{color:var(--H-light);}
  .lp-R .layer-letter{color:var(--R-light);} .lp-C .layer-letter{color:var(--C-light);}
  .lp-I .layer-letter{color:var(--I-light);}
  .layer-info{flex:1;padding:0 16px;}
  .layer-name{font-size:14px;font-weight:500;letter-spacing:0.5px;text-transform:uppercase;margin-bottom:2px;}
  .layer-desc{font-family:'DM Mono',monospace;font-size:10px;color:var(--text-muted);letter-spacing:1px;}
  .layer-arrow{font-size:12px;color:var(--text-dim);transition:color 0.2s;}
  .layer-preview:hover .layer-arrow{color:var(--text-muted);}

  .principes{background:var(--bg2);}
  .principes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);}
  .principe-card{background:var(--bg2);padding:44px 36px;position:relative;overflow:hidden;transition:background 0.3s;}
  .principe-card:hover{background:var(--bg3);}
  .principe-number{font-family:'DM Serif Display',serif;font-size:64px;color:rgba(255,255,255,0.04);position:absolute;top:12px;right:20px;line-height:1;}
  .principe-icon{width:40px;height:40px;border:1px solid var(--border-active);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:20px;}
  .principe-title{font-size:18px;font-weight:500;margin-bottom:12px;}
  .principe-text{font-size:15px;line-height:1.75;color:var(--text-muted);}

  /* ── BRIQUES ── */
  .briques-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-bottom:48px;}
  .brique-card{border:1px solid var(--border);padding:28px 20px;position:relative;overflow:hidden;transition:all 0.35s;cursor:pointer;text-decoration:none;color:inherit;display:block;}
  .brique-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;opacity:0;transition:opacity 0.3s;}
  .brique-card:hover{transform:translateY(-4px);}
  .brique-card:hover::after{opacity:1;}
  .bc-A{background:rgba(42,82,152,0.08);} .bc-A::after{background:var(--A-light);}
  .bc-R{background:rgba(27,94,32,0.08);} .bc-R::after{background:var(--R-light);}
  .bc-C{background:rgba(230,81,0,0.08);} .bc-C::after{background:var(--C-light);}
  .bc-H{background:rgba(139,37,0,0.08);} .bc-H::after{background:var(--H-light);}
  .bc-I{background:rgba(74,20,140,0.1);} .bc-I::after{background:var(--I-light);}
  .brique-letter{font-family:'DM Serif Display',serif;font-size:44px;line-height:1;margin-bottom:14px;}
  .bc-A .brique-letter{color:var(--A-light);} .bc-R .brique-letter{color:var(--R-light);}
  .bc-C .brique-letter{color:var(--C-light);} .bc-H .brique-letter{color:var(--H-light);}
  .bc-I .brique-letter{color:var(--I-light);}
  .brique-name{font-size:13px;font-weight:500;letter-spacing:1px;text-transform:uppercase;margin-bottom:8px;}
  .brique-role{font-family:'DM Mono',monospace;font-size:10px;color:var(--text-muted);letter-spacing:1px;line-height:1.6;margin-bottom:16px;}
  .brique-tags{display:flex;flex-wrap:wrap;gap:5px;}
  .brique-tag{font-family:'DM Mono',monospace;font-size:9px;letter-spacing:1px;padding:3px 7px;border:1px solid var(--border);color:var(--text-dim);text-transform:uppercase;}

  /* ── COUCHES ── */
  .couches{background:var(--bg2);}
  .couches-layout{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;}
  .couche-block{border:1px solid var(--border);padding:36px;position:relative;}
  .couche-block::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--gold);opacity:0.5;}
  .couche-label{font-family:'DM Mono',monospace;font-size:10px;letter-spacing:3px;color:var(--gold);text-transform:uppercase;margin-bottom:16px;}
  .couche-title{font-family:'DM Serif Display',serif;font-size:26px;margin-bottom:14px;}
  .couche-desc{font-size:15px;line-height:1.75;color:var(--text-muted);margin-bottom:24px;}
  .couche-items{display:flex;flex-direction:column;gap:10px;}
  .couche-item{display:flex;align-items:center;gap:12px;font-family:'DM Mono',monospace;font-size:12px;color:var(--text-muted);}

  /* ── CYCLE VIE ── */
  .cycle-phases{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);margin-bottom:40px;}
  .phase-card{background:var(--bg);padding:36px 28px;transition:background 0.3s;}
  .phase-card:hover{background:var(--bg3);}
  .phase-age{font-family:'DM Serif Display',serif;font-size:40px;color:var(--gold);opacity:0.6;margin-bottom:6px;line-height:1;}
  .phase-name{font-family:'DM Mono',monospace;font-size:11px;letter-spacing:3px;text-transform:uppercase;color:var(--text-muted);margin-bottom:24px;}
  .phase-alloc{display:flex;flex-direction:column;gap:8px;}
  .alloc-row{display:flex;align-items:center;gap:10px;}
  .alloc-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;}
  .alloc-label{color:var(--text-muted);flex:1;font-size:13px;}
  .alloc-pct{font-family:'DM Mono',monospace;font-size:12px;color:var(--text);}

  /* ── KIT ── */
  .kit-section{background:linear-gradient(135deg,rgba(201,168,76,0.05) 0%,transparent 60%);border-top:1px solid var(--border);}
  .kit-layout{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center;}
  .kit-preview{border:1px solid var(--border);padding:28px;background:var(--bg2);position:relative;margin-top:20px;}
  .kit-preview::before{content:'KIT ARCHI V1';position:absolute;top:-1px;left:20px;font-family:'DM Mono',monospace;font-size:9px;letter-spacing:3px;background:var(--gold);color:var(--bg);padding:3px 10px;}
  .kit-tabs{display:flex;gap:5px;margin-bottom:16px;flex-wrap:wrap;}
  .kit-tab{font-family:'DM Mono',monospace;font-size:9px;letter-spacing:1px;padding:4px 9px;border:1px solid var(--border);color:var(--text-dim);text-transform:uppercase;}
  .kit-tab.active{background:var(--gold);color:var(--bg);border-color:var(--gold);}
  .kit-sheet{background:var(--bg3);border:1px solid var(--border);padding:16px;font-family:'DM Mono',monospace;}
  .sheet-row{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,0.04);align-items:center;}
  .sheet-cell{flex:1;color:var(--text-muted);font-size:11px;}
  .sheet-cell.label{color:var(--text);font-weight:500;flex:2;}
  .sheet-cell.value{color:var(--gold);text-align:right;}
  .sheet-cell.status{text-align:center;font-size:12px;}
  .kit-features{display:flex;flex-direction:column;gap:16px;margin-top:20px;}
  .kit-feature{display:flex;gap:14px;align-items:flex-start;}
  .kit-feature-icon{width:36px;height:36px;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;}
  .kit-feature-text{font-size:15px;line-height:1.65;color:var(--text-muted);}
  .kit-feature-text strong{color:var(--text);font-weight:500;display:block;margin-bottom:2px;}

  /* ── NEWSLETTER ── */
  .newsletter{text-align:center;padding:100px 60px;position:relative;overflow:hidden;}
  .newsletter::before{content:'ARCHI';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-family:'DM Serif Display',serif;font-size:260px;color:rgba(255,255,255,0.015);pointer-events:none;white-space:nowrap;letter-spacing:20px;}
  .newsletter-title{font-family:'DM Serif Display',serif;font-size:clamp(36px,4vw,56px);margin-bottom:20px;position:relative;z-index:2;}
  .newsletter-subtitle{font-size:16px;color:var(--text-muted);max-width:500px;margin:0 auto 40px;line-height:1.75;position:relative;z-index:2;}
  .newsletter-form{max-width:480px;margin:0 auto;position:relative;z-index:2;}
  .form-row{display:flex;}
  .newsletter-input{flex:1;background:var(--bg2);border:1px solid var(--border-active);border-right:none;padding:16px 20px;color:var(--text);font-family:'Outfit',sans-serif;font-size:15px;outline:none;}
  .newsletter-input::placeholder{color:var(--text-dim);}
  .newsletter-input:focus{border-color:var(--gold);}
  .newsletter-btn{background:var(--gold);color:var(--bg);border:none;padding:16px 28px;font-family:'DM Mono',monospace;font-size:11px;letter-spacing:2px;text-transform:uppercase;cursor:pointer;transition:background 0.2s;white-space:nowrap;}
  .newsletter-btn:hover{background:var(--gold-light);}
  .form-note{font-family:'DM Mono',monospace;font-size:10px;color:var(--text-dim);margin-top:12px;letter-spacing:1px;}
  .form-success{display:none;font-family:'DM Mono',monospace;font-size:12px;color:var(--gold);letter-spacing:2px;text-transform:uppercase;margin-top:16px;}

  /* ── FOOTER ── */
  footer{padding:36px 60px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;}
  .footer-logo{font-family:'DM Mono',monospace;font-size:12px;letter-spacing:4px;color:var(--gold);text-transform:uppercase;}
  .footer-links{display:flex;gap:28px;list-style:none;}
  .footer-links a{font-family:'DM Mono',monospace;font-size:10px;letter-spacing:2px;color:var(--text-dim);text-decoration:none;text-transform:uppercase;transition:color 0.2s;}
  .footer-links a:hover{color:var(--text-muted);}
  .footer-copy{font-family:'DM Mono',monospace;font-size:10px;letter-spacing:1px;color:var(--text-dim);}

  @media(max-width:768px){
    .hero{grid-template-columns:1fr;padding:90px 20px 60px;gap:40px;min-height:auto;}
    .hero-title{font-size:32px;}
    .hero-subtitle{font-size:15px;max-width:100%;}
    .hero-actions{flex-direction:column;align-items:flex-start;}
    .hero-stats{gap:20px;flex-wrap:wrap;}
    .principes-grid{grid-template-columns:1fr;}
    .briques-grid{grid-template-columns:1fr 1fr;gap:10px;}
    .brique-letter{font-size:36px;}
    .brique-tags{display:none;}
    .couches-layout{grid-template-columns:1fr;gap:20px;}
    .cycle-phases{grid-template-columns:1fr;}
    .kit-layout{grid-template-columns:1fr;gap:36px;}
    .kit-preview{margin-top:0;}
    .newsletter{padding:72px 20px;}
    .newsletter-title{font-size:28px;}
    .form-row{flex-direction:column;}
    .newsletter-input{border-right:1px solid var(--border-active);border-bottom:none;}
    .newsletter-btn{width:100%;padding:14px;}
    footer{flex-direction:column;gap:16px;padding:28px 20px;text-align:center;}
    .footer-links{gap:16px;flex-wrap:wrap;justify-content:center;}
  }
  @media(max-width:1000px){
    .hero{grid-template-columns:1fr;}
  }
  @media(min-width:769px) and (max-width:1024px){
    .hero{padding:100px 32px 60px;gap:40px;}
    .briques-grid{grid-template-columns:repeat(3,1fr);}
    .couches-layout{gap:36px;}
    .kit-layout{gap:40px;}
  }

/* ── SVG Diagram ── */
      .svg-brick { transition: all 0.3s ease; cursor: pointer; }
      .svg-brick:hover { filter: brightness(1.2); transform: translateY(-3px); }
      .svg-text { pointer-events: none; }
      .arrow-head { fill: var(--text-dim); }
      .label-text { font-family: 'DM Mono', monospace; font-size: 10px; fill: var(--text-dim); font-style: italic; }