/* ============================================================
   Esacode — components/css/style.css
   Light theme, single source of truth for all styling.
   ============================================================ */

/* ---------- Fonts ------------------------------------------- */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------- Tokens ------------------------------------------ */

:root {
  /* Surfaces */
  --bg:               #ffffff;
  --bg-elev-1:        #fafafb;
  --bg-elev-2:        #f3f3f5;
  --bg-soft-tint:     #fdf6f3;
  --border:           rgba(15, 15, 25, 0.08);
  --border-strong:    rgba(15, 15, 25, 0.16);

  /* Text */
  --fg:               #0e0e15;
  --fg-muted:         rgba(14, 14, 21, 0.65);
  --fg-faint:         rgba(14, 14, 21, 0.45);

  /* Accent — blue */
  --accent:           #3b6cf2;
  --accent-strong:    #2952d9;
  --accent-soft:      rgba(59, 108, 242, 0.10);
  --accent-soft-2:    rgba(59, 108, 242, 0.18);

  /* Hero title gradient — used to animate the product name */
  --grad-1:           #3b82f6;
  --grad-2:           #8b5cf6;
  --grad-3:           #6366f1;

  /* Terminal / install window — kept dark for code clarity */
  --term-bg:          #0c0c11;
  --term-bg-2:        #15151c;
  --term-fg:          #f3f3f5;
  --term-fg-muted:    rgba(243, 243, 245, 0.7);
  --term-fg-faint:    rgba(243, 243, 245, 0.45);
  --term-border:      rgba(255, 255, 255, 0.08);

  /* Status */
  --success-bg:       #e8f8ee;
  --success-fg:       #145a32;
  --error-bg:         #fdeceb;
  --error-fg:         #842116;

  --radius-sm:  8px;
  --radius:     12px;
  --radius-lg:  16px;
  --radius-xl:  22px;

  --shadow-card: 0 1px 2px rgba(15,15,25,0.04), 0 8px 24px rgba(15,15,25,0.06);
  --shadow-pop:  0 8px 32px rgba(15,15,25,0.12);

  --max-width: 1180px;
  --pad-x: 28px;
  --header-pad-x: 24px;

  --font-sans: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --header-h: 68px;
}

/* ---------- Reset / base ------------------------------------ */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image:
    radial-gradient(1200px 700px at 80% -200px, rgba(59, 108, 242, 0.10), transparent 60%),
    radial-gradient(900px 500px at -10% 5%, rgba(139, 92, 246, 0.07), transparent 60%);
  background-attachment: fixed;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0;
}
h1 { font-size: clamp(2.4rem, 4.5vw, 3.6rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
h3 { font-size: 1.1rem; }
h4 { font-size: 0.85rem; }

p { margin: 0 0 1em; }

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: var(--bg-elev-2);
  padding: 0.1em 0.4em;
  border-radius: 4px;
}

main { display: block; min-height: calc(100vh - var(--header-h)); }

/* ---------- Accessibility ----------------------------------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}
.skip-link:focus {
  position: fixed;
  left: 12px;
  top: 12px;
  width: auto;
  height: auto;
  clip: auto;
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  z-index: 9999;
  border-radius: 8px;
  font-weight: 700;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ---------- Layout helpers ---------------------------------- */

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px var(--pad-x);
}
.section-title {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  margin-bottom: 12px;
}
.section-copy {
  color: var(--fg-muted);
  max-width: 760px;
  margin: 0 0 36px;
}

/* ---------- Header (full-width, 3-column) ------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}

/* No max-width: contents span edge-to-edge.
   1fr / auto / 1fr puts the search shell in the true page center. */
.header-inner {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0 var(--header-pad-x);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}
.brand         { justify-self: start;  }
.header-search { justify-self: center; }
.header-right  { justify-self: end;    }

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
  color: var(--fg);
}
.brand:hover { color: var(--fg); }
.brand img { width: 32px; height: 32px; object-fit: contain; }

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav a {
  position: relative;
  padding: 8px 14px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--fg-muted);
  border-radius: 8px;
  transition: color 140ms, background 140ms;
}
.nav a:hover { color: var(--fg); background: var(--bg-elev-2); }
.nav a.active { color: var(--fg); background: var(--bg-elev-2); }
.nav a.active::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

/* ---------- Nav action buttons (Donate / Sponsor) ---------- */

.nav-actions {
  display: flex;
  gap: 8px;
  padding-left: 12px;
  border-left: 1px solid var(--border);
}

.nav-button {
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: background 140ms, color 140ms, border-color 140ms, transform 140ms;
}
.nav-button:hover { transform: translateY(-1px); }

.nav-button-donate {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.nav-button-donate:hover,
.nav-button-donate.active {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #fff;
}

.nav-button-sponsor {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.nav-button-sponsor:hover,
.nav-button-sponsor.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- Search ------------------------------------------ */

.header-search { min-width: 0; width: 100%; max-width: 520px; }
.search-shell { position: relative; width: 100%; }
.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--fg-faint);
  pointer-events: none;
}
.search-input {
  width: 100%;
  padding: 9px 16px 9px 38px;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg);
  font: inherit;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 140ms, background 140ms, box-shadow 140ms;
}
.search-input::placeholder { color: var(--fg-faint); }
.search-input:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-pop);
  max-height: 380px;
  overflow: auto;
  display: none;
  padding: 4px;
}
.search-results:not(:empty) { display: block; }

.search-result {
  display: flex;
  flex-direction: column;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--fg);
  transition: background 120ms;
}
.search-result:hover { background: var(--bg-elev-2); color: var(--fg); }
.search-result-name { font-size: 0.95rem; font-weight: 600; }
.search-result-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--fg-faint);
  margin-top: 2px;
}
.search-empty {
  padding: 14px;
  color: var(--fg-faint);
  font-size: 0.9rem;
  text-align: center;
}

/* ---------- Hero -------------------------------------------- */

.hero { padding-top: 32px; padding-bottom: 32px; }
.hero-centered { text-align: center; }
.hero-shell {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.hero-logo {
  width: 115px;
  height: 115px;
  object-fit: contain;
  filter: drop-shadow(0 12px 24px rgba(59, 108, 242, 0.22));
}
.hero-shell h1 {
  margin-top: 8px;
  font-size: clamp(3.1rem, 6.2vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.035em;

  /* Animated blue → violet → indigo gradient over the text */
  background-image: linear-gradient(
    110deg,
    var(--grad-1) 0%,
    var(--grad-2) 30%,
    var(--grad-3) 50%,
    var(--grad-2) 70%,
    var(--grad-1) 100%
  );
  background-size: 220% auto;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: hero-gradient 7s linear infinite;
}

@keyframes hero-gradient {
  to { background-position: 220% center; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-shell h1 { animation: none; }
}
.hero-motto {
  font-size: 1.3rem;
  color: #000;
  margin: 0;
  font-weight: 600;
}
.lead {
  color: #555;
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.5;
  max-width: 660px;
  margin: 0;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 12px;
}

/* ---------- Buttons ----------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  background: var(--bg-elev-1);
  color: var(--fg);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  transition: transform 120ms, background 140ms, border-color 140ms, color 140ms;
}
.button:hover {
  background: var(--bg-elev-2);
  color: var(--fg);
  transform: translateY(-1px);
  border-color: var(--fg-muted);
}
.button-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.button-primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #fff;
}
.button-ghost {
  background: transparent;
  border-color: var(--border-strong);
}
.button-ghost:hover { background: var(--bg-elev-2); }
.button-large { padding: 14px 26px; font-size: 1rem; }

/* ---------- Install window (light, lives in the hero) ------ */

.install-window {
  width: 100%;
  max-width: min(820px, 100%);
  margin: 12px auto 0;
  background: #fff;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: left;
  box-shadow: var(--shadow-card);
}
.install-topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  background: var(--bg-elev-1);
  border-bottom: 1px solid var(--border);
}
.window-controls { display: flex; gap: 6px; }
.window-controls span { width: 12px; height: 12px; border-radius: 50%; background: #ccc; }
.window-controls span:nth-child(1) { background: #ff5f57; }
.window-controls span:nth-child(2) { background: #febc2e; }
.window-controls span:nth-child(3) { background: #28c840; }

.install-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--fg-faint);
  text-align: center;
}

.os-selector {
  display: flex;
  gap: 2px;
  background: #fff;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.os-button {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--fg-muted);
  padding: 5px 11px;
  font-size: 0.78rem;
  font-weight: 500;
  border-radius: 999px;
  transition: background 140ms, color 140ms;
}
.os-button:hover { color: var(--fg); }
.os-button.active {
  background: #000;
  color: #fff;
  border-color: #000;
}

.install-body { padding: 18px 18px 20px; }
.command-label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 8px;
}
.command-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.command-code {
  flex: 1;
  margin: 0;
  background: transparent;
  border: 0;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 500;
  line-height: 1.6;
  outline: none;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  cursor: text;
}
.command-code:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
.command-row .copy-button {
  align-self: flex-start;
  flex-shrink: 0;
}

/* Error variant — shown when install.json or the product entry is missing. */
.install-window-error .install-body {
  background: var(--error-bg);
  color: var(--error-fg);
}
.install-window-error .install-body p { margin: 0 0 8px; font-size: 0.92rem; }
.install-window-error .install-body p:last-child { margin-bottom: 0; }
.install-window-error code {
  background: rgba(0,0,0,0.08);
  color: inherit;
}

/* ---------- Copy buttons (single light style) -------------- */

.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg-muted);
  transition: color 140ms, background 140ms, border-color 140ms;
  flex-shrink: 0;
}
.copy-button svg { width: 16px; height: 16px; }
.copy-button:hover {
  background: var(--bg-elev-2);
  color: var(--fg);
  border-color: var(--border-strong);
}
.copy-button.copied {
  color: #1a8245;
  border-color: rgba(26, 130, 69, 0.4);
}
/* Compact, borderless variant (model row) */
.model-ref .copy-button {
  width: 28px;
  height: 28px;
  border: 0;
  background: transparent;
}
.model-ref .copy-button:hover {
  background: var(--bg-elev-2);
}

/* ---------- Social row -------------------------------------- */

.social-row {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 18px;
}
.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  transition: color 140ms, background 140ms, transform 140ms, border-color 140ms;
}
.social-link svg { width: 16px; height: 16px; }
.social-link:hover {
  color: var(--fg);
  background: var(--bg-elev-2);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

/* ---------- Spec & content cards ---------------------------- */

.spec-grid,
.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.spec-card,
.content-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: border-color 200ms, transform 200ms, box-shadow 200ms;
}
.spec-card:hover,
.content-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.spec-card h3,
.content-card h3 { margin-bottom: 10px; letter-spacing: -0.01em; }
.spec-card p,
.content-card p { color: var(--fg-muted); margin: 0; font-size: 0.95rem; }
.spec-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.spec-list li {
  position: relative;
  padding-left: 18px;
  color: var(--fg-muted);
  font-size: 0.93rem;
}
.spec-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
.content-card-wide { grid-column: 1 / -1; }

/* ---------- CLI mock (also dark) ---------------------------- */

.install-cli-mock {
  margin-top: 16px;
  background: var(--term-bg);
  color: var(--term-fg);
  border: 1px solid var(--term-border);
  border-radius: var(--radius);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.84rem;
}
.cli-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 14px;
  background: var(--term-bg-2);
  color: var(--term-fg-faint);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--term-border);
}
.cli-status { display: inline-flex; align-items: center; gap: 6px; }
.cli-dot {
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
}
.cli-lines { padding: 12px 14px; display: flex; flex-direction: column; gap: 4px; }
.cli-line { color: var(--term-fg); white-space: nowrap; overflow-x: auto; }
.cli-prompt { color: var(--accent); margin-right: 8px; }
.cli-dim { color: var(--term-fg-faint); }

/* ---------- CTA band ---------------------------------------- */

.cta-band {
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, var(--accent-soft));
}
.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.cta-box h2 { margin-bottom: 6px; }
.cta-box p { margin: 0; color: var(--fg-muted); }

/* ---------- Support band (above footer) --------------------- */

.support-band {
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent 0%, var(--accent-soft) 100%);
}
.support-band .section { padding-top: 56px; padding-bottom: 56px; }
.support-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.support-copy { max-width: 620px; }
.support-copy h2 { font-size: 1.6rem; margin: 0 0 8px; }
.support-copy p { margin: 0; color: var(--fg-muted); }
.support-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Donate page ------------------------------------- */

.donate-card {
  max-width: 620px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

/* ---------- Two-column donate layout (support.php) -------- */

.donate-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}

.donate-option {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.donate-option h3 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.donate-option > p {
  color: var(--fg-muted);
  margin: 0 0 22px;
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Buy-button wrapper inside an option card — vertically centers the
   Stripe button so it doesn't float at the top while the crypto card
   fills its full height. */
.donate-option .donate-buy-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 0 0;
}

/* Inline crypto row inside the side-by-side card */
.crypto-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.crypto-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.crypto-row .crypto-symbol {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  width: 44px;
  flex-shrink: 0;
}
.crypto-row .crypto-address-row {
  flex: 1;
  min-width: 0;
}

@media (max-width: 760px) {
  .donate-options { grid-template-columns: 1fr; }
}

/* Standalone wrap — kept for any other page that uses just the button. */
.donate-buy-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
}
.donate-form { display: flex; flex-direction: column; gap: 18px; }

.donate-amounts {
  border: 0;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.amount-chip {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 8px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
  user-select: none;
  background: #fff;
  transition: border-color 140ms, background 140ms, color 140ms;
}
.amount-chip input { position: absolute; opacity: 0; pointer-events: none; }
.amount-chip:hover { border-color: var(--fg-muted); }
.amount-chip:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.donate-custom-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 12px;
}
.currency-prefix { color: var(--fg-faint); font-weight: 600; }
.donate-custom-row input {
  flex: 1;
  background: transparent;
  border: 0;
  color: var(--fg);
  font: inherit;
  font-size: 1rem;
  padding: 10px 0;
  outline: none;
}

.donate-frequency {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin: 0;
}
.frequency-tab {
  position: relative;
  text-align: center;
  padding: 10px;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  font-weight: 600;
  color: var(--fg-muted);
  transition: background 140ms, color 140ms;
}
.frequency-tab input { position: absolute; opacity: 0; pointer-events: none; }
.frequency-tab:has(input:checked) { background: var(--bg-elev-2); color: var(--fg); }

.donate-email-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.donate-email-row input,
.sponsor-form input,
.sponsor-form textarea {
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  color: var(--fg);
  border-radius: 10px;
  padding: 11px 13px;
  font: inherit;
  outline: none;
  transition: border-color 140ms, background 140ms, box-shadow 140ms;
}
.donate-email-row input:focus,
.sponsor-form input:focus,
.sponsor-form textarea:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.sponsor-form textarea { resize: vertical; min-height: 140px; font-family: inherit; }

.donate-fineprint { font-size: 0.85rem; color: var(--fg-faint); margin: 0; }

@media (max-width: 540px) {
  .donate-amounts { grid-template-columns: repeat(3, 1fr); }
  .amount-chip-custom { grid-column: span 3; }
}

/* ---------- Crypto cards ------------------------------------ */

.crypto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}
.crypto-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color 200ms, box-shadow 200ms;
}
.crypto-card:hover { border-color: var(--border-strong); box-shadow: var(--shadow-card); }
.crypto-card-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
}
.crypto-symbol {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.05em;
  font-size: 0.95rem;
  color: var(--accent);
}
.crypto-address-row {
  display: flex;
  align-items: stretch;
  gap: 6px;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 4px 4px 12px;
}
.crypto-address {
  flex: 1;
  background: transparent;
  border: 0;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 9px 0;
  outline: none;
  overflow-x: auto;
  white-space: nowrap;
}

/* ---------- Sponsor form ------------------------------------ */

.sponsor-form {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}
.form-row { display: flex; flex-direction: column; gap: 6px; margin: 0; padding: 0; border: 0; }
.form-row > span,
.form-row > legend { font-size: 0.9rem; color: var(--fg-muted); padding: 0; }
.form-row-two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-two label { display: flex; flex-direction: column; gap: 6px; }
@media (max-width: 600px) { .form-row-two { grid-template-columns: 1fr; } }

.sponsor-tier { display: flex; flex-wrap: wrap; gap: 8px; }
.tier-chip {
  position: relative;
  padding: 9px 16px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  cursor: pointer;
  user-select: none;
  font-size: 0.9rem;
  color: var(--fg-muted);
  background: #fff;
  transition: border-color 140ms, background 140ms, color 140ms;
}
.tier-chip input { position: absolute; opacity: 0; pointer-events: none; }
.tier-chip:hover { border-color: var(--fg-muted); }
.tier-chip:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.hp-field {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Sponsor form captcha row — narrow input for the math answer. */
.captcha-row input[name="captcha_answer"] {
  max-width: 120px;
}
.captcha-row strong {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 700;
}

/* ---------- Screenshots section (under product specs) ----------- */

.screenshots-section { padding-top: 8px; }

.screenshots {
  display: grid;
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}
.screenshots-1 { grid-template-columns: minmax(0, 720px); justify-content: center; }
.screenshots-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); }

.screenshot {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: #fff;
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.screenshot:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(15, 20, 50, 0.12);
}
.screenshot img {
  width: 100%;
  height: auto;
  display: block;
}

/* ---------- Form flash messages ----------------------------- */

.form-flash {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}
.form-flash-ok  { background: var(--success-bg); color: var(--success-fg); border-color: rgba(20,90,50,0.15); }
.form-flash-err { background: var(--error-bg);   color: var(--error-fg);   border-color: rgba(132,33,22,0.18); }

/* Success state — replaces the sponsor form after a successful submit. */
.success-state {
  max-width: 640px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 56px 36px 40px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.success-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: var(--success-bg);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.success-icon svg {
  width: 40px;
  height: 40px;
  color: var(--success-fg);
}
.success-state h2 {
  margin: 0 0 12px;
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.success-state p {
  color: var(--fg-muted);
  margin: 0 0 28px;
  font-size: 1rem;
  line-height: 1.5;
}
.success-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Models page (filters, list, pagination) ---------- */

.models-toolbar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}
.models-toolbar-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.models-toolbar-controls { gap: 12px; }

.models-search,
.models-control,
.models-reset {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  padding: 9px 13px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--fg);
  transition: border-color 140ms, box-shadow 140ms;
}
.models-search { flex: 1; min-width: 220px; }
.models-search:focus,
.models-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 108, 242, 0.14);
}

.models-control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.78rem;
  color: var(--fg-muted);
  font-weight: 500;
}
.models-control-group > span {
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-size: 0.7rem;
}
.models-control { cursor: pointer; padding-right: 28px; min-width: 160px; }

.models-reset {
  align-self: flex-end;
  cursor: pointer;
  font-weight: 600;
  background: transparent;
  color: var(--fg-muted);
}
.models-reset:hover { color: var(--accent); border-color: var(--accent); }

.models-meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.models-count       { font-family: var(--font-mono); color: var(--fg); font-weight: 500; }
.models-json-note   { font-style: italic; font-size: 0.78rem; }
.models-json-note code { font-size: 0.78rem; background: var(--bg-elev-1); padding: 1px 6px; border-radius: 4px; }

.models-list {
  display: flex;
  flex-direction: column;
}

/* ---------- Pagination ---------------------------------------- */

.models-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.models-pagination button {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 13px;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--fg);
  cursor: pointer;
  min-width: 38px;
  transition: background 140ms, border-color 140ms, color 140ms;
}
.models-pagination button:hover:not([disabled]):not(.active) {
  border-color: var(--accent);
  color: var(--accent);
}
.models-pagination button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  cursor: default;
}
.models-pagination button[disabled] {
  opacity: 0.35;
  cursor: not-allowed;
}
.models-pagination .page-ellipsis {
  padding: 7px 4px;
  color: var(--fg-muted);
  font-size: 0.92rem;
}

.link-button {
  background: transparent;
  border: 0;
  color: var(--accent);
  cursor: pointer;
  font: inherit;
  text-decoration: underline;
  padding: 0;
}
.link-button:hover { color: var(--accent-strong); }

/* Three-row layout per model:
   1. name (left) + HF reference + copy (right)
   2. capability pills (left) + spec values (right)
   3. full-width description */
.model-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 4px;
  border-bottom: 1px solid var(--border);
  transition: background 160ms;
}
.model-row:hover { background: var(--bg-elev-1); }

.model-row-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.model-name {
  font-size: 1.18rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

.model-row-mid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.model-caps {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
/* Button-style pill — fully rounded, accent-soft fill */
.cap {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 5px 14px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-soft-2);
  color: var(--accent-strong);
  border-radius: 999px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  line-height: 1.4;
}

/* Inline stat row with bullet separators */
.model-stats {
  display: flex;
  gap: 6px;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--fg-muted);
  white-space: nowrap;
}
.model-stats span {
  color: var(--fg);
  font-weight: 500;
}
.model-stats span:not(:last-child)::after {
  content: ' · ';
  margin-left: 6px;
  color: var(--fg-faint);
  font-weight: 400;
}

.model-desc {
  font-size: 0.95rem;
  color: var(--fg-muted);
  margin: 0;
  line-height: 1.55;
}

/* HF reference pill (right side of top row) */
.model-ref {
  display: inline-flex;
  align-items: stretch;
  gap: 4px;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px 3px 3px 12px;
}
.model-ref-link {
  align-self: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--fg-muted);
  white-space: nowrap;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.model-ref-link:hover { color: var(--accent); }

.models-empty { padding: 48px 0; text-align: center; color: var(--fg-faint); }

@media (max-width: 700px) {
  .model-row-top, .model-row-mid {
    flex-direction: column;
    align-items: flex-start;
  }
  .model-ref-link { max-width: 100%; }
}

/* ---------- Footer ------------------------------------------ */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-elev-1);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px var(--pad-x) 28px;
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
}
.footer-col .brand { margin-bottom: 12px; }
.footer-col h4 {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin: 0 0 16px;
  font-weight: 600;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  color: var(--fg-muted);
  font-size: 0.93rem;
  transition: color 140ms;
}
.footer-col a:hover { color: var(--fg); }
.footer-tagline {
  margin: 12px 0 0;
  color: var(--fg-muted);
  max-width: 320px;
  line-height: 1.55;
  font-size: 0.93rem;
}
.footer-bottom {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--fg-faint);
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Responsive -------------------------------------- */

/* ---------- Hamburger toggle (hidden on desktop) ------------- */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  transition: border-color 140ms;
}
.nav-toggle:hover { border-color: var(--accent); }
.nav-toggle .bars {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 18px;
}
.nav-toggle .bars > span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--fg);
  border-radius: 2px;
  transition: transform 200ms ease, opacity 200ms ease;
  transform-origin: center;
}
/* Animate to X when menu is open */
.header-inner.menu-open .nav-toggle .bars > span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.header-inner.menu-open .nav-toggle .bars > span:nth-child(2) {
  opacity: 0;
}
.header-inner.menu-open .nav-toggle .bars > span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 900px) {
  :root { --header-h: auto; }

  /* Two-row layout: brand + toggle on top, everything else collapses */
  .header-inner {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand toggle"
      "search search"
      "right right";
    padding-top: 12px;
    padding-bottom: 12px;
    gap: 12px;
    align-items: center;
  }
  .brand         { grid-area: brand;  justify-self: start; }
  .nav-toggle    { grid-area: toggle; justify-self: end; display: flex; }
  .header-search { grid-area: search; justify-self: stretch; max-width: none; }
  .header-right  { grid-area: right;  justify-self: stretch; }

  /* Collapsed by default — only revealed when .menu-open is on .header-inner */
  .header-search,
  .header-right {
    display: none;
  }
  .header-inner.menu-open .header-search,
  .header-inner.menu-open .header-right {
    display: flex;
  }

  /* When open, layout vertically and full width */
  .header-right {
    flex-direction: column;
    gap: 8px;
    width: 100%;
    padding-top: 8px;
    border-top: 1px solid var(--border);
  }
  .nav {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    gap: 2px;
  }
  .nav a {
    padding: 12px 14px;
    font-size: 0.95rem;
    border-radius: 8px;
    text-align: left;
  }
  .nav a:hover { background: var(--bg-elev-1); }
  .nav a.active::after { display: none; }
  .nav a.active {
    background: var(--bg-elev-1);
    color: var(--accent);
  }

  .nav-actions {
    flex-direction: column;
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid var(--border);
    padding-top: 8px;
    margin-top: 4px;
    width: 100%;
    gap: 8px;
  }
  .nav-button {
    text-align: center;
    padding: 11px 16px;
    font-size: 0.92rem;
  }

  .section { padding: 48px var(--pad-x); }
  .footer-cols { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 560px) {
  h1 { font-size: 2.1rem; }
  .install-topbar { grid-template-columns: 1fr; gap: 10px; }
  .os-selector { justify-self: start; }
  .install-title { text-align: left; }
  .cta-box { padding: 22px; }
}