/* ============================================
   Design tokens
   Palette: deep ink navy + parchment + one gold accent
   Type: Fraunces (display serif) / Inter (body) / IBM Plex Mono (utility)
   ============================================ */

:root {
  --bg: #12141c;
  --bg-alt: #191c26;
  --bg-raised: #1f2330;
  --paper: #e8e3d8;
  --paper-dim: #c7c2b4;
  --muted: #8a8f9e;
  --accent: #c9a44c;
  --accent-dim: #8f7638;
  --line: rgba(232, 227, 216, 0.12);
  --line-strong: rgba(232, 227, 216, 0.22);

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --nav-width: 220px;
  --gutter: clamp(24px, 5vw, 64px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

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

/* ============================================
   Layout shell — spine nav + content
   ============================================ */

.shell {
  display: flex;
  min-height: 100vh;
}

.spine {
  width: var(--nav-width);
  flex-shrink: 0;
  border-right: 1px solid var(--line);
  padding: 40px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: sticky;
  top: 0;
  height: 100vh;
}

.spine-top .mark {
  font-family: var(--font-display);
  font-size: 22px;
  font-style: italic;
  letter-spacing: 0.01em;
}

.spine-top .mark span {
  color: var(--accent);
}

.spine-nav {
  margin-top: 56px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.spine-nav a {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 9px 0;
  border-left: 2px solid transparent;
  padding-left: 14px;
  margin-left: -14px;
  transition: color 0.15s ease, border-color 0.15s ease;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.spine-nav a .idx {
  opacity: 0.5;
  font-size: 11px;
}

.spine-nav a:hover {
  color: var(--paper);
}

.spine-nav a.active {
  color: var(--accent);
  border-left-color: var(--accent);
}

.spine-bottom {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.8;
}

.spine-bottom a:hover {
  color: var(--accent);
}

.main {
  flex: 1;
  min-width: 0;
}

/* Mobile top bar (hidden on desktop) */
.topbar {
  display: none;
}

@media (max-width: 860px) {
  .spine {
    display: none;
  }
  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px var(--gutter);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    background: var(--bg);
    z-index: 10;
  }
  .topbar .mark {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 19px;
  }
  .topbar .mark span {
    color: var(--accent);
  }
  .topbar nav {
    display: flex;
    gap: 18px;
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted);
    flex-wrap: wrap;
  }
  .topbar nav a.active {
    color: var(--accent);
  }
}

/* ============================================
   Signal line — signature motif
   a thin rule that behaves like a waveform trace;
   reused as section divider across every page
   ============================================ */

.signal {
  height: 1px;
  width: 100%;
  background: linear-gradient(
    90deg,
    var(--line-strong) 0%,
    var(--accent) 8%,
    var(--line-strong) 16%,
    var(--line-strong) 30%,
    var(--accent) 38%,
    var(--line-strong) 46%,
    var(--line-strong) 64%,
    var(--accent) 70%,
    var(--line-strong) 78%,
    var(--line-strong) 100%
  );
  background-size: 200% 100%;
  opacity: 0.7;
  animation: drift 14s linear infinite;
}

@keyframes drift {
  from {
    background-position: 0% 0;
  }
  to {
    background-position: -200% 0;
  }
}

/* ============================================
   Shared content blocks
   ============================================ */

section {
  padding: 72px var(--gutter);
  max-width: 980px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(38px, 5.5vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

h1 em {
  color: var(--accent);
  font-style: italic;
}

h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.01em;
  margin-bottom: 28px;
}

p.lede {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--paper-dim);
  max-width: 620px;
  margin-top: 24px;
}

.hero {
  padding-top: 96px;
  padding-bottom: 56px;
}

.hero .signal {
  margin-top: 44px;
}

/* Cards */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: 8px;
}

.card {
  background: var(--bg);
  padding: 32px;
  transition: background 0.2s ease;
}

.card:hover {
  background: var(--bg-alt);
}

.card .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  margin: 12px 0 10px;
}

.card p {
  color: var(--muted);
  font-size: 14.5px;
}

.card .meta {
  margin-top: 18px;
  display: flex;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--paper-dim);
}

/* Paper / publication list */

.pub-list {
  margin-top: 8px;
  border-top: 1px solid var(--line);
}

.pub {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 24px;
  align-items: baseline;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.pub .idx {
  font-family: var(--font-mono);
  color: var(--muted);
  font-size: 13px;
}

.pub .title {
  font-family: var(--font-display);
  font-size: 19px;
}

.pub .venue {
  color: var(--muted);
  font-size: 13.5px;
  margin-top: 6px;
}

.pub .year {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 13px;
}

.pub .links {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  margin-top: 10px;
  display: flex;
  gap: 14px;
}

.pub .links a:hover {
  color: var(--accent);
}

@media (max-width: 600px) {
  .pub {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

/* Music / track list */

.track-list {
  margin-top: 8px;
}

.track {
  display: grid;
  grid-template-columns: 44px 1fr auto 64px;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
}

.track .idx {
  color: var(--muted);
  font-size: 13px;
}

.track .name {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--paper);
}

.track .name .release {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
  margin-top: 3px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.track .dur {
  color: var(--muted);
  font-size: 12.5px;
}

.wave {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 20px;
}

.wave i {
  display: block;
  width: 2px;
  background: var(--accent);
  opacity: 0.55;
  border-radius: 1px;
}

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-top: 16px;
}

@media (max-width: 700px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 8px;
}

.field {
  margin-bottom: 26px;
}

input,
textarea {
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  color: var(--paper);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 14.5px;
  border-radius: 2px;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--accent);
  color: var(--bg);
  padding: 13px 26px;
  border: none;
  cursor: pointer;
  border-radius: 2px;
  transition: opacity 0.15s ease;
}

.btn:hover {
  opacity: 0.85;
}

.contact-list {
  list-style: none;
  margin-top: 8px;
}

.contact-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 13.5px;
}

.contact-list li span:first-child {
  color: var(--muted);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.06em;
}

.contact-list li a:hover {
  color: var(--accent);
}

/* Footer */

footer.page-footer {
  padding: 40px var(--gutter) 80px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
  max-width: 980px;
}