/* ============================================================
   aloud. landing page — brand tokens lifted from dev-docs/style.md
   Single source of truth for visual identity is the app's
   src/web/static/css/style.css; this is a faithful subset.
   ============================================================ */

/* Self-hosted + preloaded (see index.html) so the brand face is ready
   before first paint — avoids a fallback→Knewave swap reflow that nudged
   the page on the first interaction after a mid-page reload. */
@font-face {
  font-family: 'Knewave';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../assets/fonts/knewave-v15.woff2') format('woff2');
}

/* Theme tokens are single-source via light-dark(): first value = light,
   second = dark. color-scheme decides which resolves. Default follows the
   OS (light dark); the nav toggle sets data-theme to force one (see the
   inline bootstrap + toggle script in index.html). */
:root {
  color-scheme: light dark;

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  --bg-primary:    light-dark(#fffae0, #110d08);
  --bg-secondary:  light-dark(#f5efd7, #1a1410);
  --bg-card:       light-dark(#fad8c0, #221a13);
  --bg-surface:    light-dark(#ffffff, #2e2419);
  --text-primary:  light-dark(#1f1a18, #f5efe6);
  --text-secondary:light-dark(#5c4a44, #c4b49e);
  --text-muted:    light-dark(#756058, #b0a090);
  --accent:        light-dark(#e71f75, #df3f88);
  --accent-hover:  light-dark(#c01560, #c02a72);
  --accent-glow:   light-dark(rgba(245, 206, 82, 0.45), rgba(245, 165, 47, 0.30));
  --brand-stroke:  light-dark(#ffd820, #e8b820);
  --brand-glow:    light-dark(rgba(245, 216, 32, 0.90), rgba(255, 220, 80, 0.60));
  --warm:          light-dark(#e5a01a, #c4a850);
  --border:        light-dark(#e2d0b8, #302618);
}

:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"]  { color-scheme: dark; }

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}
a:hover { color: var(--accent-hover); border-bottom-color: var(--accent-hover); }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  background: var(--bg-card);
  border-radius: 4px;
  color: var(--text-secondary);
}

/* ===== brand mark =====
   Knewave ONLY for these classes (nav-brand, brand-mark).
   Pink fill, yellow outer stroke via paint-order. */
.nav-brand,
.brand-mark {
  font-family: 'Knewave', cursive;
  color: var(--accent);
  -webkit-text-stroke: 3px var(--brand-stroke);
  paint-order: stroke fill;
  letter-spacing: 0.05em;
  font-weight: 400;
}

.brand-mark {
  font-size: 1.4em;
  -webkit-text-stroke-width: 2px;
  letter-spacing: 0.04em;
  display: inline-block;
  line-height: 1;
  vertical-align: baseline;
}

/* ===== nav ===== */
.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}
.nav-brand {
  font-size: 1.8rem;
  text-decoration: none;
  border: none;
  transition: -webkit-text-stroke-width 0.2s ease;
  margin-right: auto;
}
.nav-brand:hover {
  -webkit-text-stroke-width: 4px;
  border: none;
}
.nav-link {
  color: var(--text-secondary);
  font-size: 0.95rem;
  border-bottom: 1px solid transparent;
}
.nav-link:hover { color: var(--accent); border-bottom-color: var(--accent); }

.theme-toggle {
  position: fixed;
  top: 1.5rem;
  right: 1.1rem;
  z-index: 100;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg-primary) 78%, transparent);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--text-secondary);
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.theme-toggle svg { display: block; }

/* The toggle is viewport-fixed at top-right. Above ~1200px the nav is centered
   well clear of it; below that the nav spans near full width, so reserve room
   on the right edge to keep the last nav link from sliding under the button. */
@media (max-width: 1200px) {
  .nav { padding-right: 4rem; }
}

/* ===== hero ===== */
.hero {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  text-align: center;
  /* Fill the viewport below the nav so the next section ("two ways to
     practice") lands right at the fold — but cap it so the hero doesn't
     balloon (and strand the orb in empty space) on very tall screens.
     min() picks whichever is smaller: fill-the-viewport vs. the 900px ceiling.
     9rem ≈ nav height; svh avoids the mobile URL-bar resize jump. */
  min-height: min(calc(100svh - 9rem), 900px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-title {
  margin: 1.5rem 0 1rem;
  font-size: 4.5rem;
  line-height: 1;
}
.hero-title .brand-mark {
  font-size: 1em;
  -webkit-text-stroke-width: 5px;
}

.hero-tagline {
  font-size: 1.35rem;
  color: var(--text-primary);
  margin: 0.5rem auto 1.25rem;
  max-width: 620px;
  line-height: 1.4;
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin: 0 auto 1.25rem;
  max-width: 560px;
}
.hero-pun {
  font-size: 1.2rem;
  font-style: italic;
  color: var(--accent);
  margin: 0 auto 2rem;
}

.hero-cta {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.hero-platforms {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 1rem;
}
.hero-soon {
  font-style: italic;
  margin-top: 0.15rem;
  font-size: 0.95rem;
}

/* ===== orb =====
   Same radial gradient as the app's .orb / .orb-kasina (style.md).
   Three stacked box-shadow halos: orange inner, pink mid, pink outer. */
.orb-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}
.orb {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle at 45% 45% in oklab,
      #fff4c0 0%,
      #f8f288 18%,
      #f5d820 38%,
      #ffb805 49%,
      #ed7326 65%,
      #e71f75 71%,
      #870a3e 76%);
  box-shadow:
    0 0 60px var(--accent-glow),
    0 0 100px rgba(231, 31, 117, 0.32),
    0 0 160px rgba(231, 31, 117, 0.22);
  animation: breathe 6s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { transform: scale(1);    box-shadow: 0 0 60px var(--accent-glow), 0 0 100px rgba(231, 31, 117, 0.32), 0 0 160px rgba(231, 31, 117, 0.22); }
  50%      { transform: scale(1.04); box-shadow: 0 0 80px var(--accent-glow), 0 0 130px rgba(231, 31, 117, 0.40), 0 0 200px rgba(231, 31, 117, 0.28); }
}
@media (prefers-reduced-motion: reduce) {
  .orb { animation: none; }
}

/* ===== buttons ===== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.6rem;
  font-size: 1rem;
  font-family: var(--font);
  font-weight: 500;
  border-radius: 999px;
  cursor: pointer;
  border: 2px solid var(--accent);
  text-decoration: none;
  transition: transform 0.1s ease, box-shadow 0.2s ease, background 0.15s ease, color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); border-bottom: 2px solid var(--accent-hover); }

.btn-primary {
  background: var(--accent);
  color: var(--bg-surface);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg-surface);
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
}
.btn-ghost:hover {
  background: var(--accent);
  color: var(--bg-surface);
}

/* Dark mode: the dark (--bg-surface) label on a pink fill is low-contrast,
   so bold it. Single-source weight var keeps the two dark-mode entry paths
   (forced data-theme + OS preference) from duplicating the value. */
:root { --btn-fill-weight: 500; }
:root[data-theme="dark"] { --btn-fill-weight: 700; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --btn-fill-weight: 700; }
}
.btn-primary,
.btn-tip { font-weight: var(--btn-fill-weight); }

/* ===== 404 ===== */
.notfound {
  min-height: 72vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
}
.notfound-code {
  margin: 0 0 0.6rem;
  font-size: 1rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.notfound-title {
  margin: 0 0 1rem;
  font-size: 2.6rem;
  line-height: 1.1;
  color: var(--text-primary);
}
.notfound-sub {
  margin: 0 auto 2rem;
  max-width: 460px;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* ===== generic section ===== */
.section {
  max-width: 880px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}
.section-title {
  font-size: 1.75rem;
  margin: 0 0 1.5rem;
  text-align: center;
  font-weight: 600;
}
.section-lead {
  text-align: center;
  color: var(--text-secondary);
  margin: -0.5rem auto 2.5rem;
  max-width: 600px;
}

/* ===== modes ===== */
.modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
.mode-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.75rem;
}
.mode-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
  color: var(--accent);
}
.mode-card p { margin: 0 0 0.75rem; color: var(--text-primary); }
.mode-card p.support { color: var(--text-secondary); }
.mode-card p:last-child { margin-bottom: 0; }

@media (max-width: 640px) {
  .modes { grid-template-columns: 1fr; }
}

/* ===== screenshot ===== */
.section-shot { padding-top: 1rem; padding-bottom: 1rem; }
.screenshot-frame {
  max-width: 920px;
  margin: 0 auto;
  padding: 1.5rem;
  background: var(--bg-card);
  border-radius: 16px;
}
.screenshot-frame img {
  display: block;
  width: 100%;
  height: auto;
}

/* ===== providers ===== */
.providers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.provider-pill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  text-align: center;
}
.provider-pill strong {
  display: block;
  color: var(--accent);
  margin-bottom: 0.4rem;
  font-size: 1rem;
}
.provider-pill span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
@media (max-width: 640px) {
  .providers { grid-template-columns: 1fr; }
}

/* ===== download ===== */
.section-download { background: var(--bg-secondary); max-width: none; padding: 2rem 1.5rem 3rem; }
.section-download > * { max-width: 880px; margin-left: auto; margin-right: auto; }

.version-chip {
  display: inline-block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.15rem 0.75rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  color: var(--text-secondary);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 2rem auto;
}
.download-card {
  background: var(--bg-surface);
  border: 2px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  text-align: center;
  color: var(--text-primary);
  transition: border-color 0.15s ease, transform 0.15s ease, box-shadow 0.2s ease;
}
.download-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
  color: var(--text-primary);
}
.download-card[data-detected="true"] {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}
.download-os {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.download-file {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}
.download-note {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.4;
}
.download-note code {
  font-size: 0.8em;
  background: var(--bg-card);
}

.download-alt {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 1.5rem;
}

@media (max-width: 720px) {
  .download-grid { grid-template-columns: 1fr; }
}

/* ===== tip / donation ===== */
.section-tip { padding: 2rem 1.5rem 1.5rem; }
.tip-card {
  max-width: 680px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.75rem 1.75rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.tip-card::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  pointer-events: none;
}
.tip-title {
  margin: 0 0 0.75rem;
  font-size: 1.5rem;
  position: relative;
}
.tip-body {
  margin: 0 auto 0.75rem;
  max-width: 520px;
  color: var(--text-secondary);
  position: relative;
}

.tip-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin-top: 1.25rem;
  position: relative;
}

/* Compress tip + download on mobile so users can see both at once. */
@media (max-width: 720px) {
  .section-tip { padding: 1.5rem 1rem 1rem; }
  .tip-card { padding: 1.25rem 1.25rem; }
  .tip-title { font-size: 1.2rem; margin-bottom: 0.5rem; }
  .tip-body { font-size: 0.95rem; margin-bottom: 0.5rem; }
  .tip-buttons { margin-top: 1rem; gap: 0.5rem; }
  .btn-tip, .btn-tip-ghost { padding: 0.45rem 0.95rem; font-size: 0.9rem; }

  .section-download { padding: 1.5rem 1rem 2rem; }
  .section-download .section-title { font-size: 1.4rem; margin-bottom: 0.75rem; }
  .section-download .section-lead { margin-bottom: 1.25rem; }
  .download-grid { gap: 0.6rem; margin: 1rem auto; }
  .download-card { padding: 0.9rem 1rem; text-align: left; display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 0.5rem 1rem; }
  .download-os { font-size: 1.05rem; margin: 0; }
  .download-file { margin: 0; font-size: 0.85rem; grid-column: 2; }
  .download-note { grid-column: 1 / -1; font-size: 0.8rem; margin-top: 0.15rem; }
}

.btn-tip {
  padding: 0.6rem 1.25rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg-surface);
  border: 2px solid var(--accent);
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.1s ease, box-shadow 0.2s ease, background 0.15s ease;
}
.btn-tip:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg-surface);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-tip-ghost {
  padding: 0.6rem 1.25rem;
  border-radius: 999px;
  background: transparent;
  border: 2px solid transparent;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-decoration: underline;
  text-decoration-color: var(--text-muted);
  text-underline-offset: 4px;
}
.btn-tip-ghost:hover {
  color: var(--text-primary);
  text-decoration-color: var(--text-primary);
  background: transparent;
  border-color: transparent;
}

/* ===== thanks ===== */
.section-thanks {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  padding: 2rem 1.5rem 1rem;
  max-width: 570px;
}
.section-thanks a { color: var(--text-secondary); border-bottom: 1px solid var(--border); }
.section-thanks a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* ===== faq ===== */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.faq-controls {
  max-width: 720px;
  margin: 0 auto 1rem;
  display: flex;
  justify-content: flex-end;
}
.faq-toggle-all {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--accent);
  padding: 0.25rem 0.25rem;
  border-bottom: 1px solid transparent;
}
.faq-toggle-all:hover { border-bottom-color: var(--accent); }
.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0 1.25rem;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1rem 0;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--accent);
  font-size: 1.4rem;
  line-height: 1;
  margin-left: 1rem;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin: 0 0 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== footer ===== */
.footer {
  text-align: center;
  padding: 3rem 1.5rem 4rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.footer-brand { margin-bottom: 1rem; }
.footer-brand .brand-mark { font-size: 1.8em; }
.footer-links {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1rem;
}
.footer-links a {
  color: var(--text-secondary);
  border-bottom: 1px solid transparent;
}
.footer-links a:hover { color: var(--accent); border-bottom-color: var(--accent); }
.footer-dot { color: var(--text-muted); }
.footer-fine { margin: 0; font-size: 0.95rem; }
.footer-fine a {
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.footer-fine a:hover { color: var(--accent); border-bottom-color: var(--accent); }