/* ==========================================================================
   Sascha Nowlin — personal index
   ========================================================================== */

:root {
  --bg: #0c0b0a;
  --bg-soft: #161310;
  --fg: #f5f1ea;
  --muted: #948a7e;
  --line: rgba(245, 241, 234, 0.09);
  --accent: #ff5a36;
  --accent-dim: rgba(255, 90, 54, 0.16);

  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  --container-pad: clamp(1.25rem, 4vw, 4rem);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  color-scheme: dark;
  -webkit-text-size-adjust: 100%;
}

html,
body {
  overflow-x: hidden;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

/* --------------------------------------------------------------------
   Grain overlay
   -------------------------------------------------------------------- */

.grain {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.045;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 180px 180px;
}

/* --------------------------------------------------------------------
   Header
   -------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem var(--container-pad);
  background: linear-gradient(to bottom, rgba(12, 11, 10, 0.92), rgba(12, 11, 10, 0));
  backdrop-filter: blur(8px);
}

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  text-decoration: none;
}

.logo sup {
  font-size: 0.55em;
  color: var(--accent);
  margin-left: 0.1em;
}

.site-nav {
  display: flex;
  gap: 2rem;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.site-nav a {
  position: relative;
  text-decoration: none;
  padding-bottom: 3px;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease);
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

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

.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: clamp(2rem, 6vw, 6rem);
  max-width: 1440px;
  margin: 0 auto;
  padding: clamp(2.5rem, 9vh, 7rem) var(--container-pad) clamp(4rem, 10vh, 8rem);
  overflow: hidden;
}

.cursor-glow {
  position: absolute;
  z-index: 0;
  width: 640px;
  height: 640px;
  left: var(--x, 60%);
  top: var(--y, 30%);
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent-dim), transparent 70%);
  pointer-events: none;
  transition: left 0.2s ease-out, top 0.2s ease-out;
}

.hero-content {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow-text {
  min-width: 0;
}

.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-dim);
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.25rem, 11vw, 8.5rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
}


/* --------------------------------------------------------------------
   Portrait
   -------------------------------------------------------------------- */

.portrait {
  position: relative;
  z-index: 1;
  justify-self: end;
  width: min(100%, 380px);
  margin: 0;
}

.portrait::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, var(--bg) 100%);
  pointer-events: none;
}

.portrait img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: top;
  display: block;
}

/* --------------------------------------------------------------------
   Elsewhere
   -------------------------------------------------------------------- */

.elsewhere {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--container-pad) clamp(4rem, 10vh, 8rem);
}

.elsewhere h2 {
  margin: 0 0 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--muted);
}

.link-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.link-list li {
  border-bottom: 1px solid var(--line);
}

.link-list a {
  display: flex;
  align-items: baseline;
  gap: clamp(1rem, 4vw, 3rem);
  padding: clamp(1.25rem, 4vw, 2.5rem) 0;
  text-decoration: none;
  color: var(--fg);
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-size: 0% 100%;
  transition: background-size 0.45s var(--ease), color 0.45s var(--ease),
    padding-left 0.45s var(--ease);
}

.link-list a:hover,
.link-list a:focus-visible {
  background-size: 100% 100%;
  color: var(--bg);
  padding-left: clamp(1rem, 3vw, 2rem);
}

.link-index {
  font-size: 0.85rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  transition: color 0.45s var(--ease);
}

.link-name {
  flex: 1;
  font-family: var(--font-display);
  font-weight: 650;
  font-size: clamp(1.75rem, 6vw, 4rem);
  letter-spacing: -0.02em;
}

.link-tag {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.45s var(--ease);
}

.link-tag svg {
  width: 14px;
  height: 14px;
  transition: transform 0.45s var(--ease);
}

.link-list a:hover .link-index,
.link-list a:hover .link-tag {
  color: var(--bg);
  opacity: 0.7;
}

.link-list a:hover .link-tag svg {
  transform: translate(4px, -4px);
}

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

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 2rem var(--container-pad) 3rem;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.site-footer a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

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

[data-clock] {
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------------
   Scroll reveal
   -------------------------------------------------------------------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .portrait {
    transform: none;
  }
}

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

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .portrait {
    order: -1;
    justify-self: start;
    width: min(55vw, 260px);
  }

  .site-nav {
    gap: 1.25rem;
  }

  .link-list a:hover,
  .link-list a:focus-visible {
    padding-left: 1rem;
  }
}

@media (max-width: 480px) {
  .link-list a {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .link-tag {
    order: 1;
    flex-basis: 100%;
  }

  .eyebrow {
    letter-spacing: 0.15em;
  }
}