/* ==========================================================
   Tristan Brown — portfolio styles
   Shared by every page. Change a token here and the whole site follows.
   ========================================================== */

:root {
  /* Palette: dusk stone + candlelight */
  --bg: #1a1f2c;        /* dusk stone */
  --surface: #222939;   /* raised stone */
  --line: #353e54;      /* mortar */
  --bone: #ece5d6;      /* primary text */
  --muted: #a3a9b6;     /* secondary text */
  --ember: #e3a548;     /* accent: links, buttons, windup frames */
  --hit: #d9485f;       /* active frames only */
  --recover: #5d6c8e;   /* recovery frames only */

  --display: "Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif;
  --body: "Barlow", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --measure: 66ch;
  --wrap: 1180px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  background: var(--bg);
  color: var(--bone);
  font-family: var(--body);
  font-size: 1.125rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--ember); outline-offset: 3px; }

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

.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.skip { position: absolute; left: -999px; top: 1rem; z-index: 200; }
.skip:focus { left: 1rem; background: var(--ember); color: var(--bg); padding: .5rem 1rem; }

/* ---------- Type ---------- */
h1, h2, h3 { font-family: var(--display); font-weight: 700; }
h2 { font-size: clamp(2.2rem, 5vw, 3.5rem); line-height: 1; }
h3 { font-size: 1.6rem; font-weight: 600; line-height: 1.1; }
.muted { color: var(--muted); }
.text-link {
  color: var(--ember);
  text-decoration: underline;
  text-underline-offset: .2em;
  text-decoration-thickness: 1px;
}
.text-link:hover { text-decoration-thickness: 2px; }

/* ---------- Nav ---------- */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(26, 31, 44, .9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-nav .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: .5rem 1.5rem; min-height: 4rem; flex-wrap: wrap; padding-block: .5rem;
}
.brand {
  font-family: var(--display); font-weight: 700; font-size: 1.45rem;
  text-decoration: none;
}
.site-nav ul { list-style: none; display: flex; gap: 1.5rem; flex-wrap: wrap; }
.site-nav ul a { text-decoration: none; color: var(--muted); font-weight: 500; }
.site-nav ul a:hover,
.site-nav ul a[aria-current="page"] { color: var(--bone); }
.site-nav ul a.resume { color: var(--ember); }

/* ---------- Buttons ---------- */
.actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }
.btn {
  display: inline-block;
  font-family: var(--display); font-weight: 600; font-size: 1.25rem;
  padding: .65rem 1.4rem;
  border: 2px solid var(--ember); border-radius: 2px;
  text-decoration: none;
  transition: background-color .2s;
}
.btn-primary { background: var(--ember); color: var(--bg); }
.btn-primary:hover { background: #f0b95e; border-color: #f0b95e; }
.btn-ghost { color: var(--bone); }
.btn-ghost:hover { background: rgba(227, 165, 72, .14); }

/* ---------- Home: hero ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: min(88vh, 820px);
  display: grid; align-items: end;
}
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img, .hero-media video { width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(to top, var(--bg) 0%, rgba(26,31,44,.88) 32%, rgba(26,31,44,.3) 70%, rgba(26,31,44,.55) 100%),
    linear-gradient(to right, rgba(26,31,44,.6) 0%, transparent 60%);
}
.hero-copy { padding-block: 5rem; }
.hero h1 {
  font-size: clamp(4rem, 13vw, 10rem);
  line-height: .85;
  letter-spacing: -.01em;
}
.hero .pitch {
  max-width: 36ch;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  margin-top: 1.25rem;
}

/* The one load moment: the name lands like a diagonal strike */
@media (prefers-reduced-motion: no-preference) {
  .hero h1 { animation: slash .55s cubic-bezier(.2, .8, .2, 1) .15s both; }
  .hero .pitch, .hero .actions { animation: settle .6s ease-out .6s both; }
}
@keyframes slash {
  from { clip-path: polygon(0 0, 0 0, -25% 100%, -25% 100%); }
  to   { clip-path: polygon(0 0, 125% 0, 100% 100%, -25% 100%); }
}
@keyframes settle { from { opacity: 0; } }

/* ---------- Sections ---------- */
.section { padding-block: clamp(4rem, 8vw, 7rem); }
.section + .section { border-top: 1px solid var(--line); }
.section-head {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem;
}

/* ---------- Featured project ---------- */
.featured {
  display: grid; grid-template-columns: 1.6fr 1fr;
  gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center;
  text-decoration: none;
}
.featured-media {
  aspect-ratio: 16 / 9; overflow: hidden;
  background: var(--surface); border: 1px solid var(--line);
}
.featured-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.featured:hover .featured-media img { transform: scale(1.03); }
.featured h3 { font-size: clamp(2.6rem, 5vw, 3.8rem); font-weight: 700; line-height: .95; }
.featured:hover h3 { color: var(--ember); }
.featured p { margin-top: 1rem; }
.featured .more { display: inline-block; margin-top: 1.5rem; color: var(--ember); font-weight: 600; }

.facts {
  display: grid; grid-template-columns: auto 1fr;
  gap: .3rem 1.25rem; margin-top: 1.5rem; font-size: 1rem;
}
.facts dt { color: var(--muted); }

/* ---------- Work grid ---------- */
.work-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 3rem 2rem; margin-top: 4.5rem;
}
.work-item { display: block; text-decoration: none; }
.work-thumb {
  aspect-ratio: 16 / 9; overflow: hidden; margin-bottom: 1rem;
  background: var(--surface); border: 1px solid var(--line);
}
.work-thumb img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.8); transition: filter .3s; }
.work-item:hover .work-thumb img { filter: saturate(1.1); }
.work-item h3 { margin-bottom: .35rem; }
.work-item:hover h3 { color: var(--ember); }
.work-item p { color: var(--muted); font-size: 1rem; max-width: 50ch; }

.thumb-type {
  height: 100%; display: grid; place-items: center; text-align: center; padding: 1rem;
  background: repeating-linear-gradient(135deg, var(--surface) 0 14px, #262e40 14px 28px);
  font-family: var(--display); font-weight: 600; font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--muted); line-height: 1.1;
}

.tags {
  list-style: none; display: flex; flex-wrap: wrap; gap: .25rem 1rem;
  margin-top: .6rem; font-size: .92rem; color: var(--ember);
}

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 220px 1fr; gap: clamp(1.5rem, 5vw, 3.5rem); align-items: start; }
.about img { width: 220px; aspect-ratio: 1; object-fit: cover; border: 1px solid var(--line); }
.about h2 { margin-bottom: 1.25rem; }
.about p { max-width: var(--measure); margin-bottom: 1rem; }

/* ---------- Contact ---------- */
.big-link {
  display: inline-block; margin-top: 1rem;
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.8rem, 6vw, 4rem); line-height: 1.05;
  text-decoration: none; overflow-wrap: anywhere;
}
.big-link:hover { color: var(--ember); }
.contact-links { list-style: none; display: flex; gap: 2rem; flex-wrap: wrap; margin-top: 1.5rem; font-weight: 500; }

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2rem; color: var(--muted); font-size: .95rem;
}

/* ==========================================================
   Case study pages
   ========================================================== */
.back { display: inline-block; margin-top: 2.5rem; color: var(--muted); text-decoration: none; }
.back:hover { color: var(--bone); }

.cs-head { padding-block: 1.5rem 2.5rem; }
.cs-head h1 { font-size: clamp(3.5rem, 11vw, 8rem); line-height: .88; }
.cs-head .lede { font-size: clamp(1.2rem, 2vw, 1.4rem); max-width: 42ch; margin-top: 1.25rem; }

.cs-facts {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
  border-block: 1px solid var(--line); padding-block: 1.25rem; margin-top: 2.5rem;
}
.cs-facts dt { color: var(--muted); font-size: .95rem; }
.cs-facts dd { font-family: var(--display); font-weight: 600; font-size: 1.35rem; line-height: 1.2; }

.cs-hero { aspect-ratio: 16 / 9; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.cs-hero img, .cs-hero video { width: 100%; height: 100%; object-fit: cover; }

.cs-section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.cs-section + .cs-section { border-top: 1px solid var(--line); }
.prose { max-width: var(--measure); }
.prose h2 { margin-bottom: 1.25rem; }
.prose p { margin-bottom: 1.1rem; }

figure figcaption { color: var(--muted); font-size: .95rem; margin-top: .6rem; }
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 2rem; }
.compare img, .gallery img {
  width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border: 1px solid var(--line);
}
.gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 2rem; }

/* Visible reminder for content Tristan still needs to fill in. Delete once replaced. */
.todo {
  border: 1px dashed var(--ember); color: var(--ember);
  padding: .75rem 1rem; margin-block: 1.5rem; max-width: var(--measure); font-size: .95rem;
}

/* ---------- Frame data chart ---------- */
.frame-legend { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin-top: 2rem; font-size: .95rem; }
.frame-legend li { display: flex; align-items: center; gap: .5rem; }
.swatch { width: .9rem; height: .9rem; display: inline-block; }
.swatch.windup, .seg.windup { background: var(--ember); }
.swatch.active, .seg.active { background: var(--hit); }
.swatch.recovery, .seg.recovery { background: var(--recover); }

.frames { margin-top: 2rem; --max: 90; }
.ruler {
  position: relative; height: 1.6rem; margin-bottom: .5rem;
  font-size: .8rem; color: var(--muted);
  background: repeating-linear-gradient(to right, var(--line) 0 1px, transparent 1px calc(100% / 9)) bottom / 100% 6px no-repeat;
}
.ruler span { position: absolute; top: 0; transform: translateX(-50%); white-space: nowrap; }
.ruler span:first-child { transform: none; }
.ruler span:last-child { transform: translateX(-100%); }

.attack { padding-block: 1.25rem; border-top: 1px solid var(--line); }
.attack-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin-bottom: .6rem; }
.attack-head h3 { font-size: 1.4rem; }
.attack-head span { color: var(--muted); font-size: .95rem; }
.bar { display: flex; height: 2rem; width: calc(var(--total) / var(--max) * 100%); }
.seg {
  flex: var(--f) 0 0; min-width: 2ch;
  display: grid; place-items: center;
  font-size: .85rem; font-weight: 600; color: var(--bg);
}
.seg.recovery { color: var(--bone); }
.attack p { color: var(--muted); font-size: 1rem; margin-top: .6rem; max-width: var(--measure); }

/* ---------- Next project ---------- */
.next { display: grid; grid-template-columns: 1fr 1.2fr; gap: 2rem; align-items: center; text-decoration: none; }
.next .work-thumb { margin: 0; }
.next h2 { margin-top: .25rem; }
.next:hover h2 { color: var(--ember); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .featured, .work-grid, .about, .compare, .gallery, .next { grid-template-columns: 1fr; }
  .cs-facts { grid-template-columns: 1fr 1fr; }
  .about img { width: 160px; }
  .hero { min-height: 80vh; }
}
@media (max-width: 480px) {
  .site-nav ul { gap: 1rem; font-size: 1rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ==========================================================
   Index pages (projects, skills, contact)
   ========================================================== */
.page-head { padding-block: clamp(3rem, 7vw, 5rem) 2.5rem; }
.page-head h1 { font-size: clamp(3.5rem, 10vw, 7rem); line-height: .9; }
.page-head p { font-size: clamp(1.15rem, 2vw, 1.3rem); max-width: 46ch; margin-top: 1rem; color: var(--muted); }
.page-body { padding-bottom: clamp(3rem, 7vw, 5rem); }

/* Skills */
.skill-group {
  display: grid; grid-template-columns: 1fr 2.4fr; gap: 1rem 2.5rem;
  padding-block: 2.5rem; border-top: 1px solid var(--line);
}
.skill-group h2 { font-size: clamp(1.8rem, 3.5vw, 2.4rem); }
.skill-list { display: grid; gap: 1.75rem; }
.skill h3 { font-size: 1.45rem; margin-bottom: .2rem; }
.skill p { color: var(--muted); max-width: var(--measure); }

/* Video embeds (YouTube) */
.video-embed { position: relative; aspect-ratio: 16 / 9; border: 1px solid var(--line); background: var(--surface); }
.video-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* App store links */
.stores { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.5rem; }
.store-badge {
  display: inline-flex; align-items: center; gap: .75rem;
  padding: .65rem 1.25rem; border: 1px solid var(--line); border-radius: 2px;
  background: var(--surface); text-decoration: none; transition: border-color .2s;
}
.store-badge:hover { border-color: var(--ember); }
.store-badge svg { flex-shrink: 0; fill: var(--bone); }
.store-badge small { display: block; font-size: .75rem; color: var(--muted); line-height: 1.2; }
.store-badge strong { display: block; font-family: var(--display); font-size: 1.3rem; font-weight: 600; line-height: 1.1; }
.note { color: var(--muted); font-size: 1rem; max-width: var(--measure); margin-top: 1.25rem; }

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