/* ============================================================
   Preflop Trainer — app.css
   Shared design-system overlay. Loaded LAST on every page (after each
   page's inline <style>), so it elevates the whole site by overriding the
   shared design tokens + adding polish, without removing any inline CSS.

   Direction: modern-SaaS "refined poker" — same felt-green + gold identity,
   but cooler neutral surfaces, hairline (non-gold) borders, real depth,
   tighter type, crisp focus states. Less casino, more premium product.
   ============================================================ */

:root {
  /* Cooler, more sophisticated neutrals (was warm/brown-tinted) */
  --bg: #0a0c11;
  --surface: #13161d;
  --surface-2: #1a1e27;
  --surface-3: #232834;

  /* Refined gold accent (slightly less brassy, more "premium") */
  --gold: #e0b65a;
  --gold-dim: #9a7d36;
  --gold-bright: #f4d488;

  /* Cleaner text ramp: cool-neutral body text + one warm accent */
  --text: #e7e9ee;
  --text-dim: #9298a6;
  --text-bright: #ffffff;

  /* Hairline neutral borders instead of gold-tinted (the big "de-casino" move) */
  --border: rgba(255,255,255,0.09);
  --border-strong: rgba(255,255,255,0.16);

  /* Status colors, slightly desaturated for a pro feel */
  --success: #34d17e;
  --danger: #f05d5d;

  /* Design primitives the overlay introduces */
  --radius: 12px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.35), 0 1px 3px rgba(0,0,0,0.25);
  --shadow-md: 0 6px 18px -6px rgba(0,0,0,0.55);
  --shadow-lg: 0 18px 48px -12px rgba(0,0,0,0.7);
  --ring: 0 0 0 3px rgba(224,182,90,0.35);
}

/* ---- Global polish ---- */
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  letter-spacing: 0.1px;
}

/* Tone down the casino-green radial wash that every page paints in body::before */
body::before { opacity: 0.55 !important; }

::selection { background: rgba(224,182,90,0.28); color: #fff; }

/* Subtle, modern scrollbar */
* { scrollbar-width: thin; scrollbar-color: var(--surface-3) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 8px; border: 2px solid transparent; background-clip: content-box; }
*::-webkit-scrollbar-thumb:hover { background: #2f3543; background-clip: content-box; }

/* Accessible focus ring across interactive elements */
a:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible,
.opt-btn:focus-visible, .act-btn:focus-visible, .mode-tab:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: var(--radius-sm);
}

/* ---- Navigation ---- */
.site-nav, .site-header {
  background: rgba(10,12,17,0.72) !important;
  -webkit-backdrop-filter: saturate(140%) blur(16px);
  backdrop-filter: saturate(140%) blur(16px);
  border-bottom: 1px solid var(--border) !important;
}
.nav-logo {
  border-radius: 9px;
  box-shadow: 0 2px 10px -2px rgba(224,182,90,0.5);
}
.site-nav .nav-link, .nav-link, .nav-desktop a {
  letter-spacing: 0.2px;
  border-radius: 8px;
  transition: color .15s ease, background .15s ease;
}
.site-nav .nav-link.active, .nav-link.active, .nav-desktop a.active {
  background: rgba(224,182,90,0.12) !important;
  color: var(--gold-bright) !important;
}

/* ---- Cards: hairline border, real elevation, crisp hover ---- */
.tool-card, .game-card, .article-card, .card, .quiz-card, .stat-card,
.tool-card:any-link {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-sm);
  transition: transform .18s cubic-bezier(.2,.7,.3,1), box-shadow .18s ease, border-color .18s ease;
}
.tool-card:hover, .game-card:hover, .article-card:hover {
  border-color: var(--border-strong) !important;
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
/* Gold top-accent that wipes in on hover — a small premium signature */
.tool-card { position: relative; overflow: hidden; }
.tool-card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  transform: scaleX(0); transform-origin: 50%; transition: transform .25s ease;
}
.tool-card:hover::after { transform: scaleX(1); }

/* ---- Buttons: flatter, confident, subtle lift ---- */
.btn-primary, .start-btn, .next-btn, .cta-box a.btn, .game-play-btn {
  background: linear-gradient(180deg, var(--gold-bright), var(--gold)) !important;
  color: #1a1205 !important;
  border: none !important;
  border-radius: 10px !important;
  font-weight: 700 !important;
  box-shadow: 0 1px 0 rgba(255,255,255,0.25) inset, var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
.btn-primary:hover, .start-btn:hover, .next-btn:hover, .cta-box a.btn:hover, .game-card:hover .game-play-btn {
  filter: brightness(1.05);
  transform: translateY(-1px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.3) inset, var(--shadow-md);
}
.btn-secondary {
  border: 1px solid var(--border-strong) !important;
  border-radius: 10px !important;
  background: var(--surface-2) !important;
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.btn-secondary:hover { transform: translateY(-1px); border-color: var(--gold-dim) !important; }

/* ---- Form controls ---- */
.setting-select, .calc-input, .setting select, select, input[type="number"], input[type="text"] {
  border: 1px solid var(--border) !important;
  border-radius: 8px !important;
  background: var(--surface-2) !important;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.setting-select:focus, .calc-input:focus, select:focus, input:focus { border-color: var(--gold-dim) !important; }

/* ---- Matrix cells (charts) get a tighter, cleaner grid ---- */
.cell { border-radius: 4px !important; }

/* ---- Hero headline: tighter tracking, cleaner weight ---- */
.hero h1, .page-hdr h1 { letter-spacing: -0.6px; }

/* ============================================================
   Gamification HUD (rendered by gamify.js)
   ============================================================ */
.pt-hud {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 16px; margin: 0 0 20px; box-shadow: var(--shadow-sm);
}
.pt-hud-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--gold), var(--gold-dim));
  color: #1a1205; font-weight: 800; font-family: 'JetBrains Mono','Fira Code',monospace; font-size: 15px;
  box-shadow: 0 2px 10px -2px rgba(224,182,90,0.5);
}
.pt-hud-main { flex: 1; min-width: 160px; }
.pt-hud-row { display: flex; align-items: baseline; gap: 8px; }
.pt-hud-level { font-weight: 700; color: var(--text-bright); font-size: 14px; }
.pt-hud-xp { font-size: 11px; color: var(--text-dim); font-family: 'JetBrains Mono','Fira Code',monospace; }
.pt-xpbar { height: 6px; background: var(--surface-3); border-radius: 4px; overflow: hidden; margin-top: 6px; }
.pt-xpbar-fill { height: 100%; background: linear-gradient(90deg, var(--gold-dim), var(--gold-bright)); border-radius: 4px; transition: width .5s cubic-bezier(.2,.7,.3,1); }
.pt-hud-stats { display: flex; gap: 18px; }
.pt-hud-stat { text-align: center; }
.pt-hud-stat b { display: block; font-family: 'JetBrains Mono','Fira Code',monospace; font-size: 18px; color: var(--gold-bright); font-weight: 700; line-height: 1.1; }
.pt-hud-stat span { font-size: 9px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-dim); }
.pt-flame { color: #ff9d5c; }

/* Achievements shelf */
.pt-ach-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(108px,1fr)); gap: 10px; }
.pt-ach {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 14px 10px; text-align: center; opacity: 0.4; filter: grayscale(1);
  transition: opacity .2s ease, filter .2s ease, transform .2s ease, border-color .2s ease;
}
.pt-ach.earned { opacity: 1; filter: none; border-color: var(--gold-dim); }
.pt-ach.earned:hover { transform: translateY(-2px); }
.pt-ach-icon { font-size: 22px; line-height: 1; }
.pt-ach-name { font-size: 11px; font-weight: 700; color: var(--text-bright); margin-top: 6px; }
.pt-ach-desc { font-size: 10px; color: var(--text-dim); margin-top: 2px; line-height: 1.3; }

/* Level-up / achievement toast */
.pt-toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--gold-dim); border-radius: 12px; padding: 14px 22px;
  box-shadow: var(--shadow-lg); z-index: 9999; opacity: 0; pointer-events: none;
  transition: opacity .3s ease, transform .3s ease; max-width: 92vw;
  display: flex; align-items: center; gap: 12px;
}
.pt-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.pt-toast-icon { font-size: 26px; }
.pt-toast-title { font-family: 'Playfair Display', serif; font-weight: 700; color: var(--gold-bright); font-size: 15px; }
.pt-toast-sub { font-size: 12px; color: var(--text-dim); }

/* Respect reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}