/* ===== Reset & tokens ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f172a;            /* slate-900 */
  --bg-card: rgba(30, 41, 59, 0.5);
  --text: #94a3b8;          /* slate-400 */
  --text-bright: #e2e8f0;   /* slate-200 */
  --accent: #5eead4;        /* teal-300 */
  --accent-dim: rgba(94, 234, 212, 0.1);
  --line: rgba(148, 163, 184, 0.1);
  --shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--bg); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--bg);
  padding: 0.75rem 1.25rem; font-weight: 600; z-index: 100;
}
.skip-link:focus { left: 0; }

/* Cursor spotlight (desktop only) */
.spotlight {
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  background: radial-gradient(600px at var(--mx, 50%) var(--my, 50%), rgba(29, 78, 216, 0.15), transparent 80%);
  transition: background 0.15s ease-out;
}

/* ===== Layout ===== */
.layout {
  position: relative; z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  gap: 1rem;
}

.sidebar {
  position: sticky; top: 0;
  display: flex; flex-direction: column; justify-content: space-between;
  width: 48%;
  max-height: 100vh;
  padding: 6rem 3rem 6rem 0;
}

main {
  width: 52%;
  padding: 6rem 0;
}

/* ===== Sidebar ===== */
.sidebar h1 { font-size: clamp(2.5rem, 5vw, 3.2rem); font-weight: 700; letter-spacing: -0.03em; }
.sidebar h1 a { color: var(--text-bright); text-decoration: none; }
.sidebar h2 { margin-top: 0.75rem; font-size: 1.25rem; font-weight: 500; color: var(--text-bright); }
.tagline { margin-top: 1rem; max-width: 22rem; }

.resume-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-top: 1.5rem; padding: 0.65rem 1.1rem;
  border: 1px solid var(--accent); border-radius: 6px;
  color: var(--accent); font-size: 0.85rem; font-weight: 600;
  text-decoration: none; transition: background 0.2s ease;
}
.resume-btn:hover { background: var(--accent-dim); }

.side-nav { margin-top: 3rem; }
.side-nav ul { list-style: none; }
.side-nav li { margin-bottom: 0.25rem; }
.nav-link {
  display: inline-flex; align-items: center; gap: 1rem;
  padding: 0.6rem 0; text-decoration: none;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text);
}
.nav-line {
  display: inline-block; width: 2rem; height: 1px;
  background: var(--text); transition: width 0.25s ease, background 0.25s ease;
}
.nav-link:hover .nav-text, .nav-link.active .nav-text { color: var(--text-bright); }
.nav-link:hover .nav-line, .nav-link.active .nav-line { width: 4rem; background: var(--text-bright); }

.social { display: flex; gap: 1.25rem; list-style: none; margin-top: 2rem; }
.social a { color: var(--text); transition: color 0.2s ease, transform 0.2s ease; display: inline-block; }
.social a:hover { color: var(--accent); transform: translateY(-3px); }

/* ===== Sections ===== */
section { margin-bottom: 7rem; scroll-margin-top: 5rem; }
section p + p { margin-top: 1rem; }
section strong { color: var(--text-bright); font-weight: 600; }

.section-heading { display: none; }

/* ===== Cards (experience + projects) ===== */
.cards { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }

.card {
  display: grid; grid-template-columns: 8.5rem 1fr; gap: 1rem;
  padding: 1.25rem; border-radius: 8px;
  text-decoration: none; color: inherit;
  border: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
#projects .card { grid-template-columns: 1fr; }

.card:hover {
  background: var(--bg-card);
  border-color: var(--line);
  box-shadow: var(--shadow);
}
/* Dim sibling cards on list hover, highlight the hovered one */
.cards:hover .card { opacity: 0.55; }
.cards:hover .card:hover { opacity: 1; }

.card-dates {
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: #64748b; padding-top: 0.3rem; white-space: nowrap;
}
.card h4 { color: var(--text-bright); font-size: 1rem; font-weight: 600; line-height: 1.3; }
.card:hover h4 { color: var(--accent); }
.card p { margin-top: 0.5rem; font-size: 0.9rem; }

.arrow { display: inline-block; font-size: 0.85em; transition: transform 0.2s ease; }
.card:hover .arrow { transform: translate(4px, -4px); }

.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.9rem; }
.tags li {
  background: var(--accent-dim); color: var(--accent);
  font-size: 0.75rem; font-weight: 500;
  padding: 0.3rem 0.75rem; border-radius: 999px;
}

.resume-link {
  display: inline-block; margin-top: 2rem; margin-left: 1.25rem;
  color: var(--text-bright); font-weight: 600; text-decoration: none;
  border-bottom: 1px solid transparent; transition: border-color 0.2s ease;
}
.resume-link:hover { border-color: var(--accent); color: var(--accent); }
.resume-link .arrow { margin-left: 0.25rem; }

/* ===== Contact ===== */
.contact-blurb { max-width: 34rem; }
.cta {
  display: inline-block; margin-top: 1.75rem;
  padding: 1rem 1.75rem; border: 1px solid var(--accent); border-radius: 6px;
  color: var(--accent); font-weight: 600; text-decoration: none;
  transition: background 0.2s ease;
}
.cta:hover { background: var(--accent-dim); }
.cta-row { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.cta-secondary { border-color: var(--line); color: var(--text-bright); }
.cta-secondary:hover { border-color: var(--accent); color: var(--accent); background: transparent; }
.mid-cta { margin-top: 1.25rem; }

footer { margin-top: 5rem; font-size: 0.8rem; color: #64748b; max-width: 34rem; }

/* ===== Subpages (e.g. roku-development.html) ===== */
.subpage-main {
  position: relative; z-index: 2;
  max-width: 720px; margin: 0 auto;
  padding: 4rem 2rem 5rem;
}
.crumbs { margin-bottom: 2.5rem; }
.crumbs a {
  color: var(--text); text-decoration: none;
  font-size: 0.85rem; font-weight: 600;
}
.crumbs a:hover { color: var(--accent); }
.subpage-main h1 {
  color: var(--text-bright); font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 700; letter-spacing: -0.02em; line-height: 1.15;
}
.subpage-main .lede { margin-top: 1.25rem; font-size: 1.05rem; }
.subpage-main section { margin-top: 3.5rem; margin-bottom: 0; }
.subpage-main h2 {
  color: var(--text-bright); font-size: 1.15rem; font-weight: 600;
  margin-bottom: 1rem;
}
.subpage-main h3 {
  color: var(--text-bright); font-size: 0.95rem; font-weight: 600;
  margin-top: 1.25rem; margin-bottom: 0.25rem;
}
.subpage-main a { color: var(--accent); }
.inline-link { color: var(--accent); }
.proof-list, .process { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }
.proof-list li, .process li { padding-left: 1.25rem; position: relative; }
.proof-list li::before {
  content: "\25B8"; position: absolute; left: 0; color: var(--accent);
}
.process { counter-reset: step; }
.process li { counter-increment: step; padding-left: 1.75rem; }
.process li::before {
  content: counter(step) "."; position: absolute; left: 0;
  color: var(--accent); font-weight: 700;
}
.cta-block .cta { margin-top: 1rem; }
.subpage-main footer { margin-top: 4rem; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .layout { flex-direction: column; gap: 0; }
  .sidebar {
    position: static; width: 100%; max-height: none;
    padding: 4rem 0 0;
  }
  .side-nav { display: none; }
  .social { margin-top: 2.5rem; }
  main { width: 100%; padding: 3.5rem 0 4rem; }
  section { margin-bottom: 4.5rem; }
  .spotlight { display: none; }

  /* Show section headings when nav is hidden */
  .section-heading {
    display: block; position: sticky; top: 0; z-index: 5;
    margin: 0 -2rem 1rem; padding: 0.85rem 2rem;
    background: rgba(15, 23, 42, 0.85); backdrop-filter: blur(8px);
  }
  .section-heading h3 {
    font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--text-bright);
  }
}

@media (max-width: 600px) {
  .layout { padding: 0 1.5rem; }
  .sidebar { padding-top: 3rem; }
  .card { grid-template-columns: 1fr; padding: 1.25rem 0; }
  .card:hover { background: transparent; border-color: transparent; box-shadow: none; }
  .cards:hover .card { opacity: 1; }
  .section-heading { margin: 0 -1.5rem 1rem; padding: 0.85rem 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}