/* =========================================================
   R11SE — The Vault
   Palette: near-black, ultraviolet, sub-bass magenta,
            with a copper Bitcoin accent.
   Type:    Archivo (display, condensed heft) +
            Fraunces (serif titles) +
            JetBrains Mono (data/meta).
   Vibe:    Bass-driven · Sovereign · Awakened.
   ========================================================= */

:root {
  /* Surfaces */
  --bg: #0a070c;
  --bg-2: #0f0b12;
  --surface: #14101a;
  --surface-2: #1a1424;
  --surface-3: #201a2c;
  --border: #2a2338;
  --divider: #1c1626;

  /* Text */
  --text: #ecebee;
  --text-muted: #8a83a0;
  --text-faint: #565068;
  --text-inverse: #0a070c;

  /* Accents */
  --uv: #b17dff;        /* ultraviolet — primary */
  --uv-hi: #c9a3ff;
  --uv-glow: rgba(177, 125, 255, 0.35);
  --bass: #ff3d8f;      /* sub-bass magenta */
  --btc: #f7931a;       /* bitcoin orange */
  --btc-hi: #ffb75c;

  /* Radius / shadow */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 0 1px var(--border), 0 20px 60px -20px var(--uv-glow);

  --transition: 240ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Fonts */
  --font-display: "Archivo", "Helvetica Neue", system-ui, sans-serif;
  --font-serif: "Fraunces", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --font-body: "Archivo", system-ui, sans-serif;

  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 1rem + 8vw, 8rem);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  min-height: 100dvh;
  line-height: 1.55;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 800px 500px at 20% 0%, rgba(177, 125, 255, 0.14), transparent 60%),
    radial-gradient(ellipse 700px 500px at 90% 20%, rgba(255, 61, 143, 0.09), transparent 60%),
    radial-gradient(ellipse 900px 600px at 50% 100%, rgba(247, 147, 26, 0.06), transparent 60%);
  pointer-events: none;
}

/* subtle grain */
.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='120' height='120' filter='url(%23n)' opacity='0.9'/></svg>");
  background-size: 120px 120px;
}

img, svg, picture, video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

button {
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
  font: inherit;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.02;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
  max-width: 62ch;
}

::selection {
  background: var(--uv);
  color: var(--text-inverse);
}

:focus-visible {
  outline: 2px solid var(--uv);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .marquee-track { animation: none !important; }
}

.skip {
  position: absolute;
  left: -9999px;
  padding: 0.5rem 0.75rem;
  background: var(--uv);
  color: var(--text-inverse);
  border-radius: 4px;
  font-weight: 600;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
}

/* ========== WRAP ========== */
.wrap {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

/* ========== HEADER ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 7, 12, 0.72);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid transparent;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
}
.mark-word {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: 0.16em;
}
.mark:hover { color: var(--uv-hi); }

.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2vw, 2rem);
}
.nav a {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.nav a:hover { color: var(--text); }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}
.btn.primary {
  background: var(--uv);
  color: var(--text-inverse);
  box-shadow: 0 0 0 0 var(--uv-glow);
}
.btn.primary:hover {
  background: var(--uv-hi);
  transform: translateY(-1px);
  box-shadow: 0 12px 32px -8px var(--uv-glow);
}
.btn.ghost {
  border-color: var(--border);
  color: var(--text);
}
.btn.ghost:hover {
  border-color: var(--uv);
  color: var(--uv-hi);
}
.btn.small {
  padding: 0.6rem 1rem;
  font-size: 0.8rem;
}

/* ========== HERO ========== */
.hero {
  padding-block: clamp(4rem, 10vw, 9rem) 0;
  position: relative;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.hero-title {
  font-size: var(--text-hero);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.04em;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}
.hero-line {
  display: block;
}
.hero-line.offset {
  color: var(--uv);
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.02em;
  padding-left: clamp(0.5rem, 3vw, 2rem);
}

.hero-lead {
  font-size: var(--text-lg);
  color: var(--text-muted);
  max-width: 42ch;
  line-height: 1.55;
  margin-bottom: 2rem;
}
.hero-lead em {
  color: var(--text);
  font-style: italic;
  font-family: var(--font-serif);
  font-weight: 500;
}
.hero-lead a {
  color: var(--btc);
  border-bottom: 1px solid rgba(247, 147, 26, 0.35);
}
.hero-lead a:hover {
  color: var(--btc-hi);
  border-color: var(--btc-hi);
}

.hero-cta {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: clamp(3rem, 8vw, 5rem);
}

/* Marquee */
.hero-marquee {
  position: relative;
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
  overflow: hidden;
  padding-block: 1.1rem;
  background: linear-gradient(90deg, transparent, rgba(177, 125, 255, 0.03), transparent);
}
.marquee-track {
  display: inline-flex;
  gap: 2rem;
  white-space: nowrap;
  animation: marquee 40s linear infinite;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
}
.marquee-track span:nth-child(even) {
  color: var(--uv);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ========== SECTION HEAD ========== */
.section-head {
  margin-bottom: clamp(2rem, 5vw, 3rem);
}
.section-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--uv);
  font-weight: 500;
  margin-bottom: 0.75rem;
}
.section-label.light { color: var(--btc); }
.section-note {
  color: var(--text-muted);
  font-size: var(--text-sm);
  max-width: 30ch;
  margin-top: 0.75rem;
  line-height: 1.6;
}
.section-title {
  font-size: var(--text-2xl);
  letter-spacing: -0.025em;
  max-width: 22ch;
  font-weight: 800;
}
.section-title-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* ========== TWO-COL ========== */
.two-col {
  display: grid;
  grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  padding-block: clamp(3rem, 8vw, 6rem);
}
@media (max-width: 780px) {
  .two-col {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}
.col-side .section-label {
  position: sticky;
  top: 6rem;
}

/* ========== FEATURED ========== */
.featured {
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
  background: linear-gradient(180deg, transparent, rgba(177, 125, 255, 0.03), transparent);
}
.featured-card {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
@media (max-width: 720px) {
  .featured-card {
    grid-template-columns: 1fr;
  }
}
.featured-art {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-glow);
}
.featured-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 800ms ease;
}
.featured-art:hover img { transform: scale(1.03); }
.featured-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--bg);
  color: var(--uv);
  padding: 0.4rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.featured-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.featured-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.featured-title {
  font-size: var(--text-3xl);
  font-family: var(--font-serif);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
}
.featured-desc {
  color: var(--text-muted);
  font-size: var(--text-base);
  max-width: 42ch;
  line-height: 1.65;
}
.featured-player {
  margin-top: 0.5rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
}
.featured-player iframe {
  display: block;
  width: 100%;
  border: 0;
}
.featured-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

/* ========== STATS ========== */
.stats {
  padding-block: clamp(2rem, 5vw, 3.5rem);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}
@media (max-width: 720px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
.stats-grid > div {
  padding-left: 1.5rem;
  border-left: 1px solid var(--border);
}
.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--uv);
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* ========== TRACKS / VAULT ========== */
.tracks {
  padding-block: clamp(3.5rem, 8vw, 6rem);
  border-top: 1px solid var(--divider);
}

.filter-row {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.chip {
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  border: 1px solid var(--border);
  background: transparent;
  transition: all var(--transition);
}
.chip:hover {
  color: var(--text);
  border-color: var(--uv);
}
.chip.active {
  color: var(--text-inverse);
  background: var(--uv);
  border-color: var(--uv);
}

.track-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--divider);
}

.track {
  display: grid;
  grid-template-columns: 44px 60px minmax(0, 1fr) minmax(0, 140px) minmax(0, 90px) auto;
  gap: 1rem;
  align-items: center;
  padding-block: 0.85rem;
  padding-inline: 0.5rem;
  border-bottom: 1px solid var(--divider);
  transition: background var(--transition);
  position: relative;
}
.track:hover {
  background: rgba(177, 125, 255, 0.05);
}
.track.playing {
  background: rgba(177, 125, 255, 0.12);
}

.track-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
}
.track:hover .track-num { display: none; }
.track .track-play {
  display: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--uv);
  color: var(--text-inverse);
  align-items: center;
  justify-content: center;
}
.track:hover .track-play,
.track.playing .track-play {
  display: inline-flex;
}
.track:hover .track-num,
.track.playing .track-num {
  display: none;
}
.track-play svg { width: 14px; height: 14px; }

.track-art {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.track-art img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.track-art.empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--uv);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

.track-title {
  min-width: 0;
}
.track-title h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.005em;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.15rem;
}
.track-title .genre {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.track-stat {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}
.track-stat .lab {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.15rem;
}

.track-open {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
}
.track:hover .track-open,
.track.playing .track-open {
  color: var(--uv);
  border-color: var(--border);
}

.track-player {
  grid-column: 1 / -1;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition), margin var(--transition);
}
.track.playing .track-player {
  max-height: 200px;
  margin-block: 0.5rem 0.75rem;
}
.track-player iframe {
  width: 100%;
  border: 0;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
}

/* Responsive tracks */
@media (max-width: 840px) {
  .track {
    grid-template-columns: 40px 56px minmax(0, 1fr) auto;
  }
  .track .track-stat.plays,
  .track .track-stat.length {
    display: none;
  }
  .track-open { font-size: 0.7rem; padding: 0.35rem 0.6rem; }
}
@media (max-width: 560px) {
  .track {
    grid-template-columns: 56px minmax(0, 1fr) auto;
    gap: 0.75rem;
  }
  .track .track-num, .track .track-play { display: none; }
  .track:hover .track-play { display: none; }
}

.vault-foot {
  margin-top: 2rem;
  color: var(--text-muted);
  font-size: var(--text-sm);
  text-align: center;
}
.vault-foot a {
  color: var(--uv);
  border-bottom: 1px solid rgba(177, 125, 255, 0.3);
}
.vault-foot a:hover {
  color: var(--uv-hi);
}

/* ========== ALBUMS ========== */
.albums {
  padding-block: clamp(3.5rem, 8vw, 6rem);
  border-top: 1px solid var(--divider);
}
.album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: clamp(1.25rem, 2vw, 1.75rem);
}
.album {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.album:hover {
  transform: translateY(-4px);
  border-color: var(--uv);
  box-shadow: 0 24px 60px -20px var(--uv-glow);
}
.album a {
  display: block;
}
.album-cover {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  position: relative;
}
.album-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.album-cover-tint::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(177, 125, 255, 0.3));
  mix-blend-mode: overlay;
}
.album-cover-alt {
  background:
    radial-gradient(circle at 30% 30%, rgba(177, 125, 255, 0.4), transparent 60%),
    linear-gradient(135deg, #1a1424 0%, #0a070c 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.album-cover-alt2 {
  background:
    radial-gradient(circle at 70% 30%, rgba(255, 61, 143, 0.35), transparent 60%),
    linear-gradient(225deg, #1a1424 0%, #0a070c 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.album-cover-alt3 {
  background:
    radial-gradient(circle at 50% 50%, rgba(247, 147, 26, 0.25), transparent 60%),
    linear-gradient(180deg, #0a070c 0%, #1a1424 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.album-typeplate {
  text-align: center;
  padding: 1.5rem;
}
.tp-word {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 0.9;
}
.tp-word.small {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  letter-spacing: 0.03em;
}
.tp-amp {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--uv);
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  margin-block: -0.3rem;
}

.album-meta {
  padding: 1.25rem 1.35rem 1.4rem;
}
.album-meta .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--uv);
  margin-bottom: 0.5rem;
}
.album-meta h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.album-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* ========== ABOUT ========== */
.about {
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
}
.prose {
  font-size: var(--text-base);
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 1.1rem;
  max-width: 66ch;
}
.prose.lead {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--text-lg);
  line-height: 1.5;
  letter-spacing: -0.005em;
  max-width: 34ch;
  margin-bottom: 1.75rem;
  color: var(--text);
}

/* ========== TIP ========== */
.tip {
  padding-block: clamp(4rem, 9vw, 7rem);
  background:
    radial-gradient(ellipse 800px 500px at 80% 50%, rgba(247, 147, 26, 0.08), transparent 60%),
    var(--bg-2);
  border-top: 1px solid var(--divider);
}
.tip-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 260px);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
@media (max-width: 720px) {
  .tip-grid { grid-template-columns: 1fr; }
  .tip-visual { justify-self: start; }
}
.tip-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-block: 0.5rem 1.25rem;
  max-width: 22ch;
  color: var(--text);
}
.tip-copy {
  color: var(--text-muted);
  font-size: var(--text-lg);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  max-width: 46ch;
}
.tip-note {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 50ch;
  line-height: 1.6;
}
.tip-note a {
  color: var(--btc);
  border-bottom: 1px solid rgba(247, 147, 26, 0.35);
}
.tip-note a:hover { color: var(--btc-hi); }

.tip-visual svg {
  width: 100%;
  max-width: 220px;
  height: auto;
}

/* ========== FOOTER ========== */
.site-footer {
  padding-block: 3rem 3rem;
  border-top: 1px solid var(--divider);
  background: var(--bg-2);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 780px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  .foot-brand { grid-column: 1 / -1; }
  .foot-copy { grid-column: 1 / -1; margin-top: 1rem; }
}

.foot-mark {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: 0.15em;
  color: var(--text);
  margin-bottom: 0.3rem;
}
.foot-tag {
  color: var(--text-muted);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
}
.foot-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--uv);
  margin-bottom: 0.8rem;
}
.foot-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.foot-col a {
  color: var(--text);
  font-size: 0.95rem;
}
.foot-col a:hover {
  color: var(--uv);
}
.foot-copy {
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  align-self: end;
  text-align: right;
}
@media (max-width: 780px) {
  .foot-copy { text-align: left; }
}