/* ============================================================
   gn-base.css — shared design tokens, nav, hero, card & typography
   system for the light "Direction B" pages: index, home, streaks,
   rivalries, coop, bga, calendar.

   NOT used by steam.html or admin.html — they keep their own themes.

   Link this AFTER Google Fonts and BEFORE each page's own <style>
   block, so page-specific overrides (page-only data-display CSS)
   still win when needed. gn-mobile.css still loads last of all.

   Where a page already uses a different class name for the same
   component (e.g. .metric-card vs .metric, header vs .hero), rules
   below target both via grouped selectors rather than forcing a
   rename in every page's JS — same visual result, zero markup risk.
   ============================================================ */

:root{
  --bg:#eef2f7;--surface:#fff;--surface2:#f5f8fc;
  --blue:#185fa5;--blue-mid:#378add;--blue-light:#85b7eb;--blue-pale:#b5d4f4;--blue-faint:#e6f1fb;
  --green:#1a6b3c;--green-faint:#e6f4ee;--red:#9b2c2c;--red-faint:#fcebeb;
  --gold:#ba7517;--gold-light:#f0c060;--teal:#0f6e56;
  --text:#1a2b42;--muted:#6b8cad;--faint:#b5c8dc;--hint:#dce6f0;
  --border:#dce6f0;--card-bg:#fff;
  --shadow:0 1px 3px rgba(12,68,124,0.06);
  /* Hero accent — pages override these two to get their own accent
     without duplicating the whole hero block. home.html sets a green
     --hero-bg; everyone else uses this default blue gradient. */
  --hero-bg: linear-gradient(135deg,#185fa5 0%,#0f4f90 100%);
  --hero-accent: var(--gold-light);
  --nav-active: var(--blue);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:16px;line-height:1.6}

/* ── Nav ── */
nav{background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 24px;position:sticky;top:0;z-index:20}
.nav-brand{font-family:'DM Sans',sans-serif;font-size:15px;font-weight:700;color:#0c447c;padding:14px 20px 14px 0;margin-right:8px;border-right:1px solid var(--border);white-space:nowrap}
.nav-toggle{display:none}
.nav-links{display:contents}
.nav-primary{display:flex;align-items:center;gap:0;flex:1}
.nav-link{font-size:13px;font-weight:500;color:var(--muted);padding:14px 14px;border-bottom:2px solid transparent;text-decoration:none;white-space:nowrap;transition:color .15s}
.nav-link:hover{color:var(--nav-active)}
.nav-link.active{color:var(--nav-active);border-bottom-color:var(--nav-active)}
.nav-secondary{display:flex;align-items:center;gap:0;border-left:1px solid var(--border);padding-left:8px;margin-left:8px}
.nav-link.secondary{font-size:12px;color:var(--faint)}
.nav-link.secondary:hover{color:var(--muted)}
.nav-link.secondary.active{color:var(--nav-active)}

/* ── Hero / header (supports both markup conventions in use today) ── */
.hero, header{background:var(--hero-bg);color:#fff;padding:3rem 2rem 2.5rem;text-align:center;position:relative;overflow:hidden}
.hero::before, header::before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(45deg,transparent,transparent 40px,rgba(255,255,255,0.03) 40px,rgba(255,255,255,0.03) 41px)}
.hero-eyebrow, .header-eyebrow{font-family:'JetBrains Mono',monospace;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,0.6);margin-bottom:10px;position:relative}
.hero-title, header h1{font-family:'DM Sans',sans-serif;font-size:clamp(2.2rem,6vw,3.8rem);font-weight:700;line-height:1.1;color:#fff;position:relative}
.hero-title span, header h1 span{color:var(--hero-accent)}
.hero-sub, .header-sub{font-family:'JetBrains Mono',monospace;font-size:13px;color:rgba(255,255,255,0.6);position:relative}

/* ── Section header pattern ── */
.section{margin-bottom:2.5rem}
.section-header{display:flex;align-items:baseline;gap:12px;margin-bottom:1.25rem}
.section-title{font-family:'DM Sans',sans-serif;font-size:1.25rem;font-weight:700;color:var(--text)}
.section-rule{flex:1;height:1px;background:var(--border)}
.section-intro{font-size:.85rem;color:var(--muted);margin-bottom:1rem}

/* ── Cards, metrics (both .metric and .metric-card in use today) ── */
main, .main{max-width:960px;margin:0 auto;padding:2rem 1.5rem 4rem}
.card, .chart-card{background:var(--surface);border-radius:14px;padding:1.5rem;border:1px solid var(--border);box-shadow:var(--shadow)}
.chart-wrap{position:relative;width:100%}
.metrics-grid, .metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:2.5rem}
.metric, .metric-card{background:var(--surface);border-radius:12px;padding:1.25rem 1.25rem 1rem;border:1px solid var(--border)}
.metric-label{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:.4rem}
.metric-value{font-family:'DM Sans',sans-serif;font-size:2rem;font-weight:700;color:var(--text);line-height:1.1}
.metric-sub{font-size:.75rem;color:var(--muted);margin-top:.25rem}

/* ── Footer ── */
footer{text-align:center;padding:1.5rem 2rem;font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--faint);letter-spacing:.05em;border-top:1px solid var(--border);background:var(--surface)}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--blue)}