/* Russell Merrick — personal site
   Visual language borrowed from reroll and resampler:
   dark studio panels, hairline borders, 10px radius (reroll),
   IBM Plex Sans/Mono, wide-tracked mono labels, amber LED (resampler),
   soft radial glows (reroll). Amber accent on deep navy. */

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/ibm-plex-sans-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/ibm-plex-sans-500.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/ibm-plex-sans-600.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-500.woff2") format("woff2");
}

:root {
  --bg: #0b0d12;
  --bg-elev: #14161c;
  --bg-slot: #1a1d26;
  --bg-slot-hover: #222632;
  --border: #2a2f3a;
  --border-strong: #3d4555;
  --text: #e8eaef;
  --text-dim: #9aa1b3;
  --text-faint: #6b7386;
  --accent: #e8a23a;
  --accent-dim: #c4842a;
  --accent-glow: rgba(232, 162, 58, 0.16);
  --on-accent: #1a1308;
  --glow-a: rgba(232, 162, 58, 0.08);
  --glow-b: rgba(80, 110, 180, 0.06);
  --radius: 10px;
  --font: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --content: 1080px;
  --header-h: 64px;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
}

body {
  background-color: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--glow-a), transparent),
    radial-gradient(ellipse 40% 30% at 100% 0%, var(--glow-b), transparent);
}

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

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #f3c36a;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  background: var(--accent);
  color: var(--on-accent);
  padding: 0.5rem 0.85rem;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: 0.75rem;
}

.wrap {
  width: min(var(--content), calc(100% - 2.5rem));
  margin-inline: auto;
}

/* Header — resampler top bar: hairline, brand + LED, mono wordmark */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  background: rgba(11, 13, 18, 0.86);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  text-decoration: none;
  min-width: 0;
}

.brand:hover {
  color: var(--text);
}

.brand-mark {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  flex-shrink: 0;
  transform: translateY(-1px);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.15rem 1.15rem;
}

.nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--accent);
}

/* Hero */
.hero {
  padding: 5.5rem 0 4.5rem;
}

.kicker {
  margin: 0 0 0.85rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.4rem, 6vw, 4.25rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.lede {
  margin: 0 0 2rem;
  max-width: 34rem;
  color: var(--text-dim);
  font-size: 1.15rem;
  line-height: 1.5;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.6rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease, filter 0.15s ease;
}

.btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
  box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 40%, transparent);
}

.btn-primary:hover {
  color: var(--on-accent);
  border-color: var(--accent);
  filter: brightness(1.08);
}

/* Sections */
.section {
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}

.section h2 {
  margin: 0 0 1.1rem;
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.prose {
  max-width: 40rem;
  color: var(--text-dim);
}

.prose p {
  margin: 0 0 1rem;
}

.prose p:last-child {
  margin-bottom: 0;
}

.section-head {
  display: grid;
  gap: 0.25rem;
  margin-bottom: 1.75rem;
}

.stack {
  margin-top: 1.75rem;
}

.actions-follow {
  margin-top: 1.25rem;
}


/* Cards / panels — reroll elevated slots + resampler panels */
.grid {
  display: grid;
  gap: 1rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.15rem 1.2rem 1.25rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.card:hover {
  border-color: var(--border-strong);
  background: var(--bg-slot);
}

.card h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.card h3 a {
  color: var(--text);
  text-decoration: none;
}

.card h3 a:hover {
  color: var(--accent);
}

.card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
  flex: 1;
}

.meta {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-top: 0.25rem;
  font-family: var(--mono);
  font-size: 0.78rem;
}

.link-row a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.1rem;
}

.link-row a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Music feature */
.feature {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.25rem;
  align-items: center;
  margin-top: 1.75rem;
  padding: 1.25rem 1.35rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.feature h3 {
  margin: 0 0 0.2rem;
  font-size: 1.15rem;
}

.feature p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* Work placeholder */
.todo {
  padding: 1.25rem 1.35rem;
  background: var(--bg-elev);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
}

.todo p {
  margin: 0;
  color: var(--text-dim);
}

.todo-label {
  display: inline-block;
  margin-bottom: 0.55rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

/* Footer */
.site-footer {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 0.88rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.site-footer a {
  color: var(--text-dim);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent);
}

/* Responsive */
@media (max-width: 800px) {
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .feature {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 3.25rem 0 3rem;
  }

  .section {
    padding: 3rem 0;
  }
}

@media (max-width: 640px) {
  .wrap {
    width: min(var(--content), calc(100% - 1.5rem));
  }

  .site-header {
    height: auto;
  }

  .site-header .wrap {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.7rem 0 0.8rem;
    gap: 0.55rem;
  }

  .nav {
    justify-content: flex-start;
    gap: 0.35rem 0.9rem;
  }

  .lede {
    font-size: 1.05rem;
  }

  .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}

/* v2: link back to the instrument homepage */
.nav a.nav-play {
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  padding: 2px 12px;
}
.nav a.nav-play:hover,
.nav a.nav-play:focus-visible {
  color: var(--on-accent);
  background: var(--accent);
}