/* Right Brain — marketing site. Dark, modern, in the spirit of deep-focus.app.
   Self-contained: no external fonts/CDNs (privacy-by-design, works offline). */

:root {
  --bg: #0b0e16;
  --bg-2: #0f1320;
  --surface: #161c2c;
  --surface-2: #1b2236;
  --line: #232c42;
  --ink: #eef1f7;
  --ink-soft: #9aa6bf;
  --ink-dim: #6b7591;
  --accent: #2dd4bf;
  --accent-deep: #14b8a6;
  --accent-ink: #04221f;
  --indigo: #232a52;
  --maxw: 1120px;
  --radius: 20px;
  --radius-sm: 14px;

  --g-strong: #2dd4bf;
  --g-moderate: #5b97e0;
  --g-weak: #e0a463;
  --g-contested: #d8be63;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { margin: 0 0 .5em; line-height: 1.1; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.3rem, 6vw, 4rem); font-weight: 850; }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); font-weight: 800; }
p { margin: 0 0 1rem; color: var(--ink-soft); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.accent { color: var(--accent); }

.skip-link { position: absolute; left: -999px; background: var(--accent); color: var(--accent-ink); padding: 10px 16px; z-index: 100; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(11,14,22,.78); backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid var(--line); }
.nav { max-width: var(--maxw); margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 850; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 26px; height: 26px; background: url("logo-mark.svg") center/contain no-repeat; flex: none; }
.brand-text { letter-spacing: -0.02em; }
.nav-links { list-style: none; display: flex; align-items: center; gap: 26px; margin: 0; padding: 0; }
.nav-links a { color: var(--ink-soft); font-weight: 600; font-size: .95rem; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-cta { background: var(--accent); color: var(--accent-ink) !important; padding: 9px 18px; border-radius: 999px; }
.nav-cta:hover { background: var(--accent-deep); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); color: var(--ink); border-radius: 10px; padding: 6px 12px; font-size: 1.1rem; cursor: pointer; }

/* Buttons */
.btn { display: inline-block; padding: 14px 26px; border-radius: 999px; font-weight: 750; font-size: 1.02rem; transition: transform .12s ease, background .2s ease, border-color .2s ease; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 10px 30px rgba(45,212,191,.22); }
.btn-primary:hover { background: var(--accent-deep); }
.btn-ghost { border: 1.5px solid var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
@media (prefers-reduced-motion: reduce) { .btn:hover, .phone:hover { transform: none; } }

/* Hero */
.hero { position: relative; overflow: hidden; padding: clamp(48px, 8vw, 104px) 0 clamp(40px, 6vw, 80px); background:
  radial-gradient(900px 520px at 78% -8%, rgba(45,212,191,.16), transparent 60%),
  radial-gradient(720px 480px at 6% 8%, rgba(43,42,82,.55), transparent 60%); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.lede { font-size: clamp(1.08rem, 1.8vw, 1.3rem); color: var(--ink-soft); max-width: 54ch; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0 16px; }
.hero-note { font-size: .9rem; color: var(--ink-dim); margin: 0; }
.hero-art { display: flex; justify-content: center; }
.phone { width: 100%; max-width: 300px; height: auto; filter: drop-shadow(0 30px 60px rgba(0,0,0,.55)); }
.phone-float { animation: float 6s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@media (prefers-reduced-motion: reduce) { .phone-float { animation: none; } }

/* Stats */
.stats { border-block: 1px solid var(--line); background: var(--bg-2); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 28px 24px; }
.stat { text-align: center; }
.stat-n { display: block; font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 850; color: var(--accent); letter-spacing: -0.03em; }
.stat-l { display: block; font-size: .86rem; color: var(--ink-soft); }

/* Myth band */
.myth { background: linear-gradient(180deg, var(--indigo), #1a1f3e); padding: clamp(56px, 8vw, 96px) 0; }
.myth-inner { max-width: 760px; }
.myth h2 { color: #fff; }
.myth-copy { color: rgba(255,255,255,.86); font-size: clamp(1.05rem, 2vw, 1.25rem); max-width: 60ch; }
.myth-foot { color: rgba(255,255,255,.55); margin: 0; }

/* Sections */
.section { padding: clamp(56px, 8vw, 100px) 0; }
.section-alt { background: var(--bg-2); }
.tag { text-transform: uppercase; letter-spacing: .14em; font-size: .76rem; font-weight: 800; color: var(--ink-dim); margin: 0 0 12px; }
.tag-accent { color: color-mix(in srgb, var(--accent) 80%, #fff); }
.section-h { max-width: 20ch; }
.section-intro { max-width: 60ch; font-size: 1.06rem; }

/* Card grids */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 38px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card h3 { font-size: 1.16rem; }
.card p { margin: 0; }
.ico { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 1.4rem; background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent); margin-bottom: 16px; }

/* Screenshots */
.section-screens { background: radial-gradient(800px 400px at 50% 0%, rgba(45,212,191,.07), transparent 60%); }
.screens { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 44px; align-items: end; }
.screen { margin: 0; text-align: center; }
.screen img { width: 100%; max-width: 260px; height: auto; filter: drop-shadow(0 24px 50px rgba(0,0,0,.5)); }
.screen-raise img { transform: translateY(-22px) scale(1.04); }
.screen figcaption { color: var(--ink-soft); font-size: .95rem; margin-top: 16px; }
.screen figcaption strong { color: var(--ink); }
@media (prefers-reduced-motion: reduce) { .screen-raise img { transform: none; } }

/* Steps */
.steps { list-style: none; counter-reset: s; padding: 0; margin: 38px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.steps li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.step-n { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent); font-weight: 850; margin-bottom: 14px; }
.steps h3 { font-size: 1.05rem; }
.steps p { margin: 0; font-size: .95rem; }

/* Game tiles */
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin: 40px 0 28px; }
.tile { margin: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; transition: transform .12s ease, border-color .2s ease; }
.tile:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.tile img { width: 100%; height: auto; border-radius: var(--radius-sm); display: block; }
.tile figcaption { margin-top: 14px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 6px 10px; }
.t-name { font-weight: 750; color: var(--ink); }
.t-desc { grid-column: 1 / -1; color: var(--ink-soft); font-size: .92rem; }
.tiles-foot { font-size: 1rem; max-width: 64ch; }
@media (prefers-reduced-motion: reduce) { .tile:hover { transform: none; } }

/* Evidence chips */
.chip { display: inline-block; font-size: .66rem; font-weight: 850; letter-spacing: .04em; text-transform: uppercase; padding: 4px 9px; border-radius: 999px; color: var(--accent-ink); }
.chip-strong { background: var(--g-strong); }
.chip-moderate { background: var(--g-moderate); }
.chip-weak { background: var(--g-weak); }
.chip-contested { background: var(--g-contested); }

/* Get / download */
.section-get { text-align: center; background: linear-gradient(180deg, transparent, rgba(45,212,191,.06)); }
.get-inner { max-width: 60ch; margin: 0 auto; }
.get-inner .section-h { margin-inline: auto; }
.badge { display: inline-flex; flex-direction: column; align-items: flex-start; gap: 0; margin-top: 22px; padding: 12px 26px; border: 1.5px solid var(--line); border-radius: 14px; color: var(--ink); line-height: 1.2; }
.badge:hover { text-decoration: none; border-color: var(--accent); }
.badge[aria-disabled="true"] { opacity: .65; pointer-events: none; }
.badge-top { font-size: .72rem; color: var(--ink-soft); }
.badge-bottom { font-size: 1.3rem; font-weight: 800; }

/* Footer */
.site-footer { background: var(--bg-2); border-top: 1px solid var(--line); padding: 56px 0 36px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.footer-tag { color: var(--ink-soft); max-width: 32ch; margin: 12px 0 0; }
.footer-col h4 { color: var(--ink); font-size: .95rem; margin-bottom: 14px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-col a { color: var(--ink-soft); font-weight: 600; font-size: .95rem; }
.footer-col a:hover { color: var(--accent); text-decoration: none; }
.footer-base { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); }
.disclaimer { font-size: .82rem; color: var(--ink-dim); max-width: 90ch; }
.copyright { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 18px; font-size: .76rem; color: var(--ink-soft); margin: 0; }
.copyright p { margin: 0; }
.copyright a { color: var(--ink-soft); }
.copyright a:hover { color: var(--accent); }
@media (max-width: 640px) { .copyright { flex-direction: column; gap: 4px; } }

/* Responsive */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-copy { order: 2; }
  .hero-art { order: 1; }
  .actions { justify-content: center; }
  .lede { margin-inline: auto; }
  .grid-3, .steps { grid-template-columns: repeat(2, 1fr); }
  .tiles { grid-template-columns: repeat(2, 1fr); }
  .screens { grid-template-columns: 1fr; gap: 36px; }
  .screen-raise img { transform: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px 16px; }
}
@media (max-width: 600px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 62px; right: 16px; left: 16px; flex-direction: column; align-items: stretch; gap: 4px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 12px; border-radius: 10px; }
  .nav-cta { text-align: center; }
  .grid-3, .steps, .tiles { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* ============ Games page ============ */
.games-hero { padding: clamp(48px,7vw,88px) 0 8px; background:
  radial-gradient(820px 460px at 80% -10%, rgba(45,212,191,.14), transparent 60%); }
.games-hero h1 { font-size: clamp(1.9rem, 4.4vw, 3rem); max-width: 18ch; }
.games-hero .lede { max-width: 64ch; }
.games-legend { display: flex; flex-wrap: wrap; gap: 16px; font-size: .9rem; color: var(--ink-soft); margin-top: 8px; }
.games-legend .chip { margin-right: 4px; }

.tiles-cta { margin: 4px 0 8px; }

.games-list-section { padding-top: 28px; }
.games-list { display: grid; gap: 20px; }
.game-row { display: grid; grid-template-columns: 200px 1fr; gap: 26px; align-items: start;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; scroll-margin-top: 90px; }
.game-art img { width: 100%; height: auto; border-radius: var(--radius-sm); display: block; }
.game-head { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 12px; margin-bottom: 8px; }
.game-head h2 { font-size: 1.3rem; margin: 0; }
.game-num { font-size: .8rem; font-weight: 850; color: var(--ink-dim); letter-spacing: .05em; background: var(--surface-2);
  border-radius: 8px; padding: 3px 8px; }
.game-mech { margin: 0 0 16px; color: var(--ink-soft); max-width: 70ch; }
.game-meta { margin: 0; display: grid; gap: 12px; }
.game-meta > div { display: grid; grid-template-columns: 150px 1fr; gap: 14px; align-items: baseline; }
.game-meta dt { margin: 0; font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); }
.game-meta dd { margin: 0; color: var(--ink-soft); font-size: .96rem; }
.game-meta dd { line-height: 1.55; }

@media (max-width: 760px) {
  .game-row { grid-template-columns: 1fr; gap: 18px; }
  .game-art img { max-width: 200px; }
  .game-meta > div { grid-template-columns: 1fr; gap: 2px; }
}