/* Nick Lax portfolio — plain CSS, no build step.
   Colors live in the custom properties below; dark mode swaps them. */

:root {
  --bg: #EEE7D8;
  --surface: #F7F2E7;
  --ink: #17171A;
  --muted: #55555C;
  --line: #D8CFBC;
  --hatch: #E0D7C4;
  --accent: #1F3FD8;
  --on-accent: #FFFFFF;
  --hl: #D9E0FF;

  --font-display: 'Bricolage Grotesque', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --pad: clamp(20px, 4vw, 48px);
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}

[data-theme="dark"] {
  --bg: #121216;
  --surface: #1B1B21;
  --ink: #EEECE7;
  --muted: #A9A7B1;
  --line: #30303A;
  --hatch: #25252D;
  --accent: #93A5FF;
  --on-accent: #0E1240;
  --hl: #232A5C;
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  transition: background-color .4s ease, color .4s ease;
}
a { color: var(--ink); }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
p { margin: 0; }
h1, h2, h3 { margin: 0; }
.wrap { max-width: 1240px; margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); }
.accent { color: var(--accent); }
#top { position: absolute; top: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  padding: 10px 16px; border-radius: 8px;
  background: var(--accent); color: var(--on-accent); font-weight: 600;
}
.skip-link:focus { top: 16px; color: var(--on-accent); }

/* Link underline that slides in on hover */
.ul {
  text-decoration: none;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 2px no-repeat;
  transition: background-size .3s ease, color .2s;
}
.ul:hover { background-size: 100% 2px; }

/* ---------- Header ---------- */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  padding-top: 24px; padding-bottom: 24px;
}
.brand {
  font-family: var(--font-display); font-weight: 800; font-size: 22px;
  letter-spacing: -0.02em;
}
.nav { display: flex; align-items: center; gap: 28px; }
.nav-links { display: flex; gap: 28px; list-style: none; margin: 0; padding: 0; font-size: 15px; font-weight: 500; }
.nav-links a, .brand { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; min-width: 44px; }
.theme-btn {
  width: 44px; height: 44px; padding: 0; border-radius: 50%;
  border: 1.5px solid var(--ink); background: transparent; color: var(--ink);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: transform .35s var(--ease);
}
.theme-btn:hover { transform: rotate(-20deg); }
.icon-sun { display: none; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* ---------- Hero ---------- */
.hero { padding-top: 72px; padding-bottom: 110px; }
.eyebrow {
  margin-bottom: 28px;
  font-family: var(--font-mono); font-size: 14px; letter-spacing: .04em; color: var(--muted);
}
.hero-title {
  max-width: 15ch;
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(38px, 6.4vw, 92px); line-height: .98; letter-spacing: -0.035em;
}
.hl { position: relative; isolation: isolate; display: inline-block; white-space: nowrap; padding: 0 .08em; color: var(--accent); }
.hl::before {
  content: ""; position: absolute; left: 0; right: 0; top: .12em; bottom: .02em; z-index: -1;
  background: var(--hl); border-radius: 4px;
  transform: scaleX(0); transform-origin: left center;
  animation: wipe .7s cubic-bezier(.65, .05, .25, 1) .7s forwards;
}
.hero-lede { margin-top: 36px; max-width: 620px; font-size: 20px; color: var(--muted); }

/* ---------- Buttons ---------- */
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }
.btn-row--sm { gap: 12px; margin-top: 0; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 52px; padding: 0 26px; border-radius: 999px;
  border: 1.5px solid var(--ink); background: transparent;
  font-weight: 600; text-decoration: none;
  transition: transform .2s ease, background-color .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-solid, .btn-solid:hover { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn-sm { min-height: 46px; padding: 0 20px; font-size: 15px; }
.btn:hover .swirl { animation: nudge .8s ease-in-out infinite; }

/* ---------- Sections ---------- */
.section { padding-top: 60px; padding-bottom: 80px; }
.section-head { border-top: 1.5px solid var(--ink); padding-top: 28px; margin-bottom: 44px; }
.section-head--split { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; }
#work .section-head { margin-bottom: 64px; }
.section-num { margin-bottom: 10px; font-family: var(--font-mono); font-size: 14px; color: var(--muted); }
.section-head--split > .section-num { margin-bottom: 0; }
.section-title {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(32px, 3.6vw, 48px); line-height: 1; letter-spacing: -0.03em;
}
.section-title--lg { font-size: clamp(36px, 4.4vw, 60px); }
.section-aside { max-width: 380px; color: var(--muted); }

/* ---------- Case studies ---------- */
.case { display: flex; flex-wrap: wrap; align-items: center; gap: 56px; margin-bottom: 120px; }
.case:last-child { margin-bottom: 40px; }
.case--flip .case-media { order: 2; }
.case-media { flex: 1 1 560px; min-width: 0; }
.case-text { flex: 1 1 420px; min-width: 0; }
.case-text > p { margin-bottom: 14px; }
.case-kicker { font-family: var(--font-mono); font-size: 14px; color: var(--accent); margin-bottom: 12px !important; }
.case-title {
  margin-bottom: 20px;
  font-family: var(--font-display); font-weight: 800;
  font-size: 40px; line-height: 1.05; letter-spacing: -0.025em;
}

.frame { border: 1.5px solid var(--ink); border-radius: 12px; overflow: hidden; background: var(--surface); }
.frame-bar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1.5px solid var(--ink); }
.frame-dot { width: 11px; height: 11px; flex: none; border-radius: 50%; border: 1.5px solid var(--ink); }
.frame-url {
  margin-left: 10px; min-width: 0;
  font-family: var(--font-mono); font-size: 13px; color: var(--muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.frame-body {
  height: 360px; padding: 24px;
  display: flex; align-items: center; justify-content: center;
  background-image: repeating-linear-gradient(135deg, var(--hatch) 0 2px, transparent 2px 13px);
}
.frame-body--shot { height: auto; aspect-ratio: 2 / 1; padding: 0; background-image: none; }
.frame-body--shot img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.shot-dark { display: none !important; }
[data-theme="dark"] .shot-dark { display: block !important; }
[data-theme="dark"] .shot-light { display: none !important; }
.frame-placeholder { font-family: var(--font-mono); font-size: 14px; color: var(--muted); text-align: center; }

.tag-note {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 18px;
  padding: 8px 14px; border-radius: 6px; background: var(--hl);
  font-family: var(--font-mono); font-size: 13px;
}
.tag-dot { width: 8px; height: 8px; flex: none; border-radius: 50%; background: var(--accent); }

.stats { display: grid; grid-template-columns: repeat(3, minmax(0, max-content)); gap: 20px 32px; margin: 28px 0 32px; }
.stats div { display: flex; flex-direction: column; }
.stats dd { order: -1; }
.stats dd {
  margin: 0; font-family: var(--font-display); font-weight: 800;
  font-size: 52px; line-height: 1; letter-spacing: -0.03em;
}
.stats dt { margin-top: 6px; max-width: 14ch; font-size: 14px; line-height: 1.4; color: var(--muted); }

/* ---------- Building cards ---------- */
.cards { display: flex; flex-wrap: wrap; gap: 28px; }
.card {
  flex: 1 1 380px; min-width: 0; padding: 32px;
  border: 1.5px solid var(--line); border-radius: 12px; background: var(--surface);
}
.card-status {
  display: flex; align-items: center; gap: 10px; margin-bottom: 16px;
  font-family: var(--font-mono); font-size: 13px; color: var(--muted);
}
.card-title { margin-bottom: 10px; font-family: var(--font-display); font-weight: 700; font-size: 28px; letter-spacing: -0.02em; }
.dot { position: relative; display: inline-block; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.dot::after { content: ""; position: absolute; inset: 0; border-radius: 50%; background: var(--accent); animation: ping 1.8s ease-out infinite; }

/* ---------- Experience ---------- */
.jobs { list-style: none; margin: 0; padding: 0; }
.job { display: flex; flex-wrap: wrap; gap: 8px 40px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.job-years { flex: 0 0 150px; padding-top: 4px; font-family: var(--font-mono); font-size: 14px; color: var(--muted); }
.job-body { flex: 1 1 520px; min-width: 0; }
.job-role { font-family: var(--font-display); font-weight: 700; font-size: 22px; letter-spacing: -0.01em; line-height: 1.3; }
.job-org { margin: 2px 0 8px; font-size: 15px; font-weight: 500; color: var(--accent); }
.edu { margin-top: 24px; font-size: 15px; color: var(--muted); }

/* ---------- About ---------- */
.about { display: flex; flex-wrap: wrap; gap: 40px 80px; border-top: 1.5px solid var(--ink); padding-top: 28px; }
.about-head { flex: 0 1 300px; }
.about-body { flex: 1 1 560px; min-width: 0; font-size: 21px; line-height: 1.55; }
.about-body p + p { margin-top: 18px; }

/* ---------- Contact & footer ---------- */
.contact { border-top: 1.5px solid var(--ink); padding-top: 56px; }
.contact-title {
  margin-bottom: 28px;
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(48px, 8vw, 120px); line-height: .95; letter-spacing: -0.04em;
}
.contact-email {
  display: inline-block; padding: 8px 0;
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(24px, 3vw, 40px); letter-spacing: -0.02em; color: var(--accent);
  word-break: break-word;
}
.contact-line { margin-top: 20px; max-width: 560px; font-size: 17px; }
.contact .btn-row { margin-top: 32px; }
.site-footer {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  padding-top: 48px; padding-bottom: 72px; font-size: 14px; color: var(--muted);
}

/* ---------- Motion ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes wipe { to { transform: scaleX(1); } }
@keyframes ping { 0% { transform: scale(1); opacity: .55; } 100% { transform: scale(2.6); opacity: 0; } }
@keyframes nudge { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(3px); } }
@keyframes roll { from { transform: translateX(-160px); } to { transform: translateX(calc(100vw + 160px)); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes hop { 0%, 100% { transform: translateY(0); } 45% { transform: translateY(-18px); } 70% { transform: translateY(-4px); } }

/* Hero fades up on load */
.rise { opacity: 0; animation: rise .75s var(--ease) forwards; }
.r1 { animation-delay: .05s; } .r2 { animation-delay: .18s; } .r3 { animation-delay: .32s; } .r4 { animation-delay: .46s; }

/* Sections fade up as they scroll into view (main.js adds .is-in).
   Only hidden when JavaScript is running, so the page never goes blank. */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .75s var(--ease), transform .75s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }

.lift { transition: transform .28s var(--ease), box-shadow .28s; }
.lift:hover { transform: translateY(-5px); box-shadow: 0 18px 34px -20px rgba(0, 0, 0, .4); }

/* Tumbleweed (created by main.js after a few idle seconds) */
.tumbleweed { position: fixed; left: 0; bottom: 10px; z-index: 50; pointer-events: none; animation: roll 7s linear forwards; }
.tumbleweed-hop { animation: hop 1.1s ease-in-out infinite; }
.tumbleweed img { display: block; width: 64px; height: 64px; animation: spin 1.3s linear infinite; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rise, .js .reveal { opacity: 1; transform: none; animation: none; transition: none; }
  .hl::before { animation: none; transform: scaleX(1); }
  .dot::after, .btn:hover .swirl { animation: none; }
  .lift:hover, .btn:hover, .theme-btn:hover { transform: none; }
  .tumbleweed { display: none; }
}

/* ---------- Small screens ---------- */
@media (max-width: 760px) {
  .nav-links { display: none; }
  /* Let the highlighted phrase wrap on narrow screens; paint the highlight per line */
  .hl { white-space: normal; background: var(--hl); -webkit-box-decoration-break: clone; box-decoration-break: clone; border-radius: 4px; }
  .hl::before { display: none; }
  .hero { padding-top: 40px; padding-bottom: 72px; }
  .case { gap: 32px; margin-bottom: 80px; }
  .case--flip .case-media { order: 0; }
  .frame-body { height: 220px; }
  .frame-body--shot { height: auto; }
  .case-title { font-size: 32px; }
  .stats { gap: 24px; }
  .stats dd { font-size: 40px; }
  .about-body { font-size: 19px; }
}