/* ===================================================================
   5markets — Apple-inspired design system
   =================================================================== */

:root{
  --bg: #ffffff;
  --bg-elev: #f5f5f7;
  --bg-card: rgba(255,255,255,0.72);
  --text: #1d1d1f;
  --text-dim: #6e6e73;
  --text-faint: #86868b;
  --border: rgba(0,0,0,0.08);
  --accent-1: #0071e3;
  --accent-2: #7c3aed;
  --accent-3: #ff375f;
  --grad: linear-gradient(135deg,#0071e3 0%,#7c3aed 55%,#ff375f 100%);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04), 0 1px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.14);
  --radius: 18px;
  --radius-sm: 12px;
  --maxw: 1180px;
  --l1:#0071e3; --l2:#3d8bef; --l3:#7c3aed; --l4:#a855f7; --l5:#d6409f; --l6:#ff375f; --l7:#ff6b35;
}

:root[data-theme="dark"]{
  --bg:#000000; --bg-elev:#1c1c1e; --bg-card: rgba(28,28,30,0.72);
  --text:#f5f5f7; --text-dim:#a1a1a6; --text-faint:#6e6e73;
  --border: rgba(255,255,255,0.1);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3), 0 1px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.5);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.6);
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#000000; --bg-elev:#1c1c1e; --bg-card: rgba(28,28,30,0.72);
    --text:#f5f5f7; --text-dim:#a1a1a6; --text-faint:#6e6e73;
    --border: rgba(255,255,255,0.1);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3), 0 1px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.5);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.6);
  }
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
.container{ max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top:0; z-index: 50;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  height: 52px;
}
.brand{ display:flex; align-items:center; gap:8px; font-weight:600; font-size:15px; letter-spacing:-0.01em; }
.brand .dot{ width:9px;height:9px;border-radius:50%; background: var(--grad); }
.main-nav{ display:flex; align-items:center; gap: 22px; }
.main-nav a{ font-size:13px; color: var(--text-dim); font-weight:500; padding:6px 2px; border-bottom:2px solid transparent; }
.main-nav a:hover, .main-nav a.active{ color: var(--text); }
.theme-toggle{
  border:1px solid var(--border); background: var(--bg-elev); color:var(--text);
  border-radius: 999px; width:30px;height:30px; display:flex; align-items:center; justify-content:center;
  cursor:pointer; font-size:14px;
}

/* ---------- Breadcrumb bar ---------- */
.breadcrumb-bar{
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}
.breadcrumb-bar .container{ padding-top:10px; padding-bottom:10px; }
.crumbs{ display:flex; flex-wrap:wrap; align-items:center; gap:6px; font-size:12.5px; color: var(--text-dim); }
.crumbs a{ color: var(--text-dim); }
.crumbs a:hover{ color: var(--accent-1); }
.crumbs .sep{ opacity:0.4; }
.crumbs .current{ color: var(--text); font-weight:600; }

/* ---------- Hero ---------- */
.hero{
  padding: 64px 0 40px;
  text-align:center;
}
.hero h1{
  font-size: clamp(34px, 6vw, 64px);
  font-weight:700; letter-spacing:-0.03em; line-height:1.05; margin: 0 0 14px;
  background: var(--grad);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p.lede{
  font-size: clamp(16px, 2.2vw, 21px); color: var(--text-dim); max-width: 720px; margin: 0 auto 28px;
  font-weight: 400; line-height:1.5;
}
.hero .badges{ display:flex; gap:10px; flex-wrap:wrap; justify-content:center; margin-top: 8px; }
.badge{
  font-size:12.5px; font-weight:600; padding:7px 14px; border-radius:999px;
  background: var(--bg-elev); border:1px solid var(--border); color: var(--text-dim);
}
.badge strong{ color: var(--text); }

/* ---------- Stat strip ---------- */
.stat-strip{
  display:grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr));
  gap: 1px; background: var(--border); border:1px solid var(--border); border-radius: var(--radius);
  overflow:hidden; margin: 36px 0;
}
.stat-strip .stat{ background: var(--bg); padding: 24px 20px; text-align:center; }
.stat-strip .stat .v{ font-size: clamp(22px,3vw,32px); font-weight:700; letter-spacing:-0.02em; }
.stat-strip .stat .l{ font-size:12.5px; color: var(--text-dim); margin-top:6px; line-height:1.4; }

/* ---------- Section ---------- */
.section{ padding: 20px 0 56px; }
.section-head{ margin-bottom: 22px; }
.section-head h2{ font-size: clamp(22px,3vw,30px); font-weight:700; letter-spacing:-0.02em; margin:0 0 6px; }
.section-head p{ color: var(--text-dim); font-size:15px; margin:0; max-width:640px; }
.eyebrow{
  font-size:11.5px; font-weight:700; letter-spacing:0.08em; text-transform:uppercase;
  color: var(--accent-2); margin: 0 0 8px;
}

/* ---------- Idea grid (home) ---------- */
.idea-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap:18px; }
.idea-card{
  position:relative; border-radius: var(--radius); padding: 26px 22px 22px;
  background: var(--bg-elev); border:1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
  display:flex; flex-direction:column; gap:10px; min-height: 220px;
}
.idea-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); }
.idea-card .num{ font-size:12px; font-weight:700; color: var(--text-faint); }
.idea-card h3{ font-size:20px; font-weight:700; letter-spacing:-0.01em; margin:0; }
.idea-card p{ font-size:13.5px; color: var(--text-dim); line-height:1.5; margin:0; flex:1; }
.idea-card .foot{ display:flex; justify-content:space-between; align-items:center; margin-top:6px; }
.idea-card .stat-chip{ font-size:12.5px; font-weight:700; color: var(--accent-1); }
.idea-card .arrow{ font-size:16px; color: var(--text-faint); transition: transform .2s ease; }
.idea-card:hover .arrow{ transform: translateX(4px); color: var(--accent-1); }

/* ---------- Node / drill-down cards ---------- */
.child-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap:16px; }
.child-card{
  border-radius: var(--radius-sm); padding: 20px; background: var(--bg); border:1px solid var(--border);
  box-shadow: var(--shadow-sm); transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display:flex; flex-direction:column; gap:8px;
}
.child-card:hover{ transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--accent-1); }
.child-card .level-pill{ align-self:flex-start; }
.child-card h4{ font-size:16px; font-weight:700; margin:2px 0 0; letter-spacing:-0.01em; }
.child-card p{ font-size:13px; color: var(--text-dim); line-height:1.5; margin:0; }
.child-card .stat-chip{ font-size:12px; font-weight:700; color: var(--accent-2); margin-top:auto; }

.level-pill{
  display:inline-flex; align-items:center; gap:6px; font-size:11px; font-weight:700;
  padding:4px 10px; border-radius:999px; text-transform:uppercase; letter-spacing:0.04em;
  background: color-mix(in srgb, var(--lc) 14%, transparent); color: var(--lc);
}
.level-pill .dot{ width:6px;height:6px;border-radius:50%; background: var(--lc); }

/* ---------- Node header ---------- */
.node-head{ padding: 30px 0 8px; }
.node-head h1{ font-size: clamp(26px,4vw,42px); font-weight:700; letter-spacing:-0.02em; margin: 12px 0 10px; }
.node-head .summary{ font-size:16px; color: var(--text-dim); max-width: 760px; line-height:1.6; }
.node-head .tagline{ font-size:15px; color: var(--accent-2); font-weight:600; margin-top:4px; }

/* ---------- Path stepper ---------- */
.stepper{ display:flex; flex-wrap:wrap; gap:8px; margin: 18px 0 6px; }
.stepper a, .stepper span{
  font-size:12px; font-weight:600; padding:7px 12px; border-radius:999px;
  border:1px solid var(--border); color: var(--text-dim); background: var(--bg-elev);
}
.stepper a:hover{ color: var(--accent-1); border-color: var(--accent-1); }
.stepper .here{ background: var(--grad); color:#fff; border-color:transparent; }

/* ---------- Metrics grid ---------- */
.metric-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap:14px; margin: 22px 0; }
.metric-card{ background: var(--bg-elev); border:1px solid var(--border); border-radius: var(--radius-sm); padding:18px 20px; }
.metric-card .v{ font-size: 24px; font-weight:700; letter-spacing:-0.02em; }
.metric-card .l{ font-size:12.5px; color: var(--text-dim); margin-top:4px; line-height:1.45; }
.metric-card .src{ font-size:11px; color: var(--text-faint); margin-top:8px; }
.metric-card .src a{ text-decoration:underline; }

/* single stat callout */
.stat-callout{
  display:inline-flex; align-items:baseline; gap:10px; background: var(--bg-elev);
  border:1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 20px; margin: 18px 0;
}
.stat-callout .v{ font-size:28px; font-weight:800; background: var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.stat-callout .l{ font-size:13px; color: var(--text-dim); }

/* ---------- Chart card ---------- */
.chart-card{ background: var(--bg-elev); border:1px solid var(--border); border-radius: var(--radius); padding: 22px; margin: 22px 0; }
.chart-card h3{ font-size:15px; font-weight:700; margin:0 0 4px; }
.chart-card .footnote{ font-size:12px; color: var(--text-faint); margin-top:10px; line-height:1.5; }
.chart-wrap{ position:relative; height: 280px; margin-top: 14px; }

/* ---------- Roadmap ---------- */
.roadmap{ display:grid; gap:20px; margin-top: 26px; }
.rm-card{ background: var(--bg-elev); border:1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.rm-card h3{ font-size:13px; text-transform:uppercase; letter-spacing:0.06em; color: var(--accent-2); margin:0 0 12px; font-weight:700; }
.rm-card p{ font-size:15px; line-height:1.65; margin:0; }
.rm-two-col{ display:grid; grid-template-columns: 1fr 1fr; gap:20px; }
@media (max-width: 720px){ .rm-two-col{ grid-template-columns: 1fr; } }

.tag-list{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{ font-size:12.5px; background: var(--bg); border:1px solid var(--border); padding:6px 12px; border-radius:999px; }

.pricing-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap:14px; }
.price-tier{ background: var(--bg); border:1px solid var(--border); border-radius: var(--radius-sm); padding:16px; text-align:center; }
.price-tier .name{ font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:0.04em; color: var(--text-dim); }
.price-tier .price{ font-size:22px; font-weight:800; margin:6px 0; }
.price-tier .inc{ font-size:12.5px; color: var(--text-dim); line-height:1.4; }

.gtm-cols{ display:grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap:16px; }
.gtm-col h4{ font-size:12.5px; font-weight:700; margin:0 0 8px; color: var(--text); }
.gtm-col ul{ margin:0; padding-left:18px; font-size:13.5px; line-height:1.7; color: var(--text-dim); }

.build-list{ margin:0; padding-left:18px; font-size:14px; line-height:1.8; color: var(--text-dim); }

.risk-list{ margin:0; padding-left:18px; font-size:14px; line-height:1.8; color: var(--text-dim); }
.risk-list li::marker{ color: var(--accent-3); }

/* ---------- Full map / outline ---------- */
.outline{ font-size:14px; }
.outline ul{ list-style:none; margin:0; padding-left:22px; border-left:1px dashed var(--border); }
.outline > ul{ padding-left:0; border-left:none; }
.outline li{ margin: 4px 0; }
.outline a{ display:inline-flex; align-items:center; gap:8px; padding:5px 8px; border-radius:8px; color:var(--text-dim); }
.outline a:hover{ background: var(--bg-elev); color: var(--text); }
.outline .lvl1 > a{ font-weight:700; color: var(--text); font-size:16px; }
.outline .lvl7 > a{ color: var(--accent-1); }
.outline details{ margin:2px 0; }
.outline summary{ cursor:pointer; font-weight:700; color:var(--text); padding:6px 4px; list-style:revert; }
.outline summary::marker{ color: var(--accent-2); }

/* ---------- Sources ---------- */
.source-list{ display:grid; gap:10px; }
.source-item{ display:flex; justify-content:space-between; gap:12px; padding:14px 16px; background: var(--bg-elev); border:1px solid var(--border); border-radius: var(--radius-sm); font-size:13.5px; }
.source-item a{ color: var(--accent-1); font-weight:600; }

/* ---------- Footer ---------- */
.site-footer{ border-top:1px solid var(--border); padding: 32px 0; margin-top: 60px; }
.site-footer .container{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:12.5px; color: var(--text-faint); }
.site-footer a{ color: var(--text-dim); }

/* ---------- Misc ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px; font-weight:600; font-size:14px;
  padding:11px 20px; border-radius:999px; background: var(--grad); color:#fff; border:none; cursor:pointer;
}
.btn.secondary{ background: var(--bg-elev); color: var(--text); border:1px solid var(--border); }
.divider{ height:1px; background: var(--border); margin: 40px 0; }
.center{ text-align:center; }
.mt-0{ margin-top:0; }
::selection{ background: var(--accent-1); color:#fff; }