/* Soumik Shah Portfolio — page styles. Every colour, size and radius comes from css/tokens.css. */

/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body { margin: 0; font: 400 16px/26px var(--font-sans); background: var(--surface); color: var(--ink); -webkit-font-smoothing: antialiased; }
:focus-visible { outline: none; box-shadow: var(--focus-ring); }
a { color: var(--link); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
html { scrollbar-color: var(--line-control) var(--surface); accent-color: var(--mint); caret-color: var(--mint); }
::selection { background: var(--mint); color: var(--on-mint); }
.wrap { max-width: var(--content-max); margin: 0 auto; padding: 0 var(--gutter); }
.icon { width: 1em; height: 1em; flex: none; }
.skip { position: absolute; left: var(--space-4); top: -100px; z-index: 20; padding: var(--space-2) var(--space-4); background: var(--mint); color: var(--on-mint); border-radius: var(--radius-sm); font-weight: 600; text-decoration: none; }
.skip:focus { top: var(--space-4); }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* Type styles (names match tokens.json) */
.label { font: 600 12px/16px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.numeral { font: 500 14px/20px var(--font-mono); font-variant-numeric: tabular-nums; }

/* Motion: one curve for everything that moves */
:root { --ease-out: cubic-bezier(.16, 1, .3, 1); }

/* Button */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); min-height: var(--touch-min); padding: 0 var(--space-5); border-radius: var(--radius-md); font: 500 15px/20px var(--font-sans); text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: background-color .15s, border-color .15s, color .15s, transform .25s var(--ease-out), box-shadow .25s var(--ease-out); }
.btn .icon { font-size: 16px; transition: transform .25s var(--ease-out); }
.btn:hover .icon { transform: translate(2px, -2px); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--mint); color: var(--on-mint); border-color: var(--mint); font-weight: 600; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-float); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-quiet { background: transparent; color: var(--ink); border-color: var(--line-control); }
.btn-quiet:hover { background: var(--surface-raised); border-color: var(--ink-muted); }
.btn-ghost { background: transparent; color: var(--ink-muted); padding: 0 var(--space-3); }
.btn-ghost:hover { color: var(--ink); background: var(--surface-raised); }
.btn-sm { min-height: 36px; padding: 0 var(--space-3); font-size: 14px; border-radius: var(--radius-sm); }
.btn-icon { width: var(--touch-min); padding: 0; }
.btn-block { width: 100%; }

/* Chip */
.chip { display: inline-flex; align-items: center; gap: var(--space-1); height: 24px; padding: 0 var(--space-2); border-radius: var(--radius-sm); font: 600 12px/16px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; white-space: nowrap; background: var(--surface-sunken); color: var(--ink-muted); border: 1px solid var(--line); }
.chip .icon { font-size: 12px; }
.chip-mint { background: var(--mint-soft); color: var(--mint); border-color: transparent; }
.chip-amber { background: var(--amber-soft); color: var(--amber); border-color: transparent; }

/* Monogram */
.mono { display: inline-flex; align-items: center; justify-content: center; flex: none; width: 32px; height: 32px; border-radius: 8px; background: var(--mint); color: var(--on-mint); font: 800 14px/1 var(--font-display); letter-spacing: -.04em; }

/* NavBar */
.nav { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--surface) 82%, transparent); -webkit-backdrop-filter: saturate(1.4) blur(14px); backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid transparent; transition: box-shadow .2s, border-color .2s; }
.nav.is-scrolled { border-bottom-color: var(--line); }
.nav.is-scrolled { box-shadow: var(--shadow-float); }
.nav-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: 64px; }
.nav-name { display: inline-flex; align-items: center; gap: var(--space-3); color: var(--ink); text-decoration: none; font: 600 18px/24px var(--font-display); letter-spacing: -.01em; border-radius: var(--radius-sm); }
.nav-links { display: none; list-style: none; margin: 0; padding: 0; gap: var(--space-1); align-items: center; }
.nav-links a { display: inline-flex; align-items: center; min-height: var(--touch-min); padding: 0 var(--space-3); border-radius: var(--radius-sm); color: var(--ink-muted); font: 500 15px/20px var(--font-sans); text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
.nav-links a[aria-current] { color: var(--mint); }
.nav-links li:last-child { margin-left: var(--space-2); }
.nav-sheet { display: none; border-top: 1px solid var(--line); background: var(--surface-raised); box-shadow: var(--shadow-float); padding: var(--space-2) 0 var(--space-4); }
.nav.is-open .nav-sheet { display: block; }
.nav-sheet ul { list-style: none; margin: 0; padding: 0; }
.nav-sheet a { display: flex; align-items: center; justify-content: space-between; min-height: 48px; padding: 0 var(--space-2); border-radius: var(--radius-sm); color: var(--ink); font: 500 16px/24px var(--font-sans); text-decoration: none; }
.nav-sheet a[aria-current] { color: var(--mint); }
.nav-sheet .btn { margin-top: var(--space-3); }
.nav-menu .icon-close, .nav.is-open .nav-menu .icon-menu { display: none; }
.nav.is-open .nav-menu .icon-close { display: block; }

/* Hero */
.hero { position: relative; overflow: hidden; isolation: isolate; padding: var(--space-16) 0 168px; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background-image: radial-gradient(color-mix(in srgb, var(--ink) 16%, transparent) 1px, transparent 1.5px); background-size: 22px 22px; -webkit-mask-image: radial-gradient(ellipse 70% 80% at 85% 20%, #000 0%, transparent 70%); mask-image: radial-gradient(ellipse 70% 80% at 85% 20%, #000 0%, transparent 70%); }
.hero-grid { display: grid; }
.hero-name { margin: 0; font: 800 clamp(52px, 13vw, 112px)/.92 var(--font-display); letter-spacing: -.04em; color: var(--ink); font-variation-settings: "opsz" 96; text-wrap: balance; }
.hero-byline { display: inline-flex; align-items: center; gap: var(--space-3); margin: var(--space-5) 0 0; font: 500 16px/24px var(--font-sans); color: var(--ink-muted); }
.live-dot { position: relative; width: 8px; height: 8px; flex: none; margin-left: 5px; border-radius: var(--radius-full); background: var(--mint); }
.live-dot::after { content: ""; position: absolute; inset: -4px; border-radius: inherit; border: 1px solid var(--mint); opacity: .5; }
.hero-role { margin: var(--space-8) 0 0; max-width: 24ch; font: 650 clamp(26px, 4.4vw, 40px)/1.12 var(--font-display); letter-spacing: -.02em; color: var(--ink); text-wrap: balance; }
.hero-role em { font-style: normal; color: var(--mint); }
.hero-lede { margin: var(--space-6) 0 0; max-width: var(--measure); color: var(--ink-muted); }
.hero-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-6) 0 0; padding: 0; list-style: none; }
.hero-actions { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-8); }
.hero-wave { position: absolute; left: 0; right: 0; bottom: 24px; width: 100%; height: 120px; z-index: -1; pointer-events: none; -webkit-mask-image: linear-gradient(90deg, transparent, #000 25%, #000 75%, transparent); mask-image: linear-gradient(90deg, transparent, #000 25%, #000 75%, transparent); }
.hero-wave path { fill: none; stroke: var(--mint); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 0; vector-effect: non-scaling-stroke; opacity: .75; animation: trace 2.8s var(--ease-out) .4s both; }
@keyframes trace { from { stroke-dashoffset: 1; } }
.hero-in > * { animation: rise .9s var(--ease-out) both; }
.hero-in > :nth-child(2) { animation-delay: .06s; }
.hero-in > :nth-child(3) { animation-delay: .12s; }
.hero-in > :nth-child(4) { animation-delay: .18s; }
.hero-in > :nth-child(n+5) { animation-delay: .24s; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); filter: blur(6px); } }

/* Sections */
.section { padding: var(--space-16) 0 0; }
.section:last-of-type { padding-bottom: var(--space-16); }
.sh { display: grid; gap: var(--space-3); padding-top: var(--space-8); border-top: 1px solid var(--line); margin-bottom: var(--space-12); }
.sh-title { margin: 0; font: 750 clamp(32px, 5.5vw, 56px)/1.04 var(--font-display); letter-spacing: -.03em; color: var(--ink); text-wrap: balance; }
.sh-lede { margin: 0; max-width: var(--measure); color: var(--ink-muted); }
.sh-action { margin: var(--space-2) 0 0 calc(-1 * var(--space-3)); }

/* Skills */
.skills { display: grid; gap: var(--space-6) var(--space-4); grid-template-columns: 1fr; }
.skill { padding-top: var(--space-4); border-top: 1px solid var(--line); }
.skill-title { margin: 0 0 var(--space-3); color: var(--ink-muted); }
.skill ul { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: 0; padding: 0; list-style: none; }
.skill li { padding: var(--space-1) var(--space-3); border: 1px solid var(--line); border-radius: var(--radius-sm); font: 400 14px/22px var(--font-sans); color: var(--ink); transition: border-color .2s, background-color .2s; }
.skill li:hover { border-color: var(--line-control); background: var(--surface-raised); }
.skill li.lead { border-color: var(--mint); color: var(--mint); }

/* Projects */
.grid { display: grid; gap: var(--space-4); grid-template-columns: 1fr; }
.card { position: relative; display: flex; flex-direction: column; gap: var(--space-3); min-width: 0; padding: var(--space-5); background: var(--surface-raised); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); transition: transform .35s var(--ease-out), border-color .25s, box-shadow .35s var(--ease-out); }
.card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--mint) 45%, var(--line)); box-shadow: var(--shadow-float); }
.card:has(.card-title a:focus-visible) { box-shadow: var(--focus-ring); }
.card.is-featured { background: radial-gradient(120% 90% at 100% 0%, var(--mint-soft), transparent 60%), var(--surface-raised); border-color: color-mix(in srgb, var(--mint) 30%, var(--line)); }
.card.is-featured .card-title { font: 750 clamp(24px, 3vw, 32px)/1.1 var(--font-display); letter-spacing: -.02em; }
.card.is-featured .card-blurb { font-size: 16px; line-height: 26px; max-width: 52ch; }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); flex-wrap: wrap; }
.card-title { margin: 0; font: 600 20px/28px var(--font-sans); color: var(--ink); overflow-wrap: anywhere; }
.card-title a { color: inherit; text-decoration: none; border-radius: var(--radius-sm); }
.card-title a:focus-visible { box-shadow: none; }
.card-title a::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius-lg); }
.card:hover .card-title a { color: var(--mint); }
.card-foot, .card-topics { position: relative; z-index: 1; }
.card-blurb { margin: 0; font: 400 14px/22px var(--font-sans); color: var(--ink-muted); }
.card-topics { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: 0; padding: 0; list-style: none; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); flex-wrap: wrap; margin-top: auto; padding-top: var(--space-3); border-top: 1px solid var(--line); }
.card-stats { display: flex; gap: var(--space-3); color: var(--ink-muted); }
.stat { display: inline-flex; align-items: center; gap: var(--space-1); }
.stat.is-amber { color: var(--amber); }
.card-links { display: flex; gap: var(--space-1); }
.grid-more { display: flex; justify-content: center; margin-top: var(--space-8); }

/* Timeline */
.tl { list-style: none; margin: 0; padding: 0; }
.tl-item { position: relative; padding: 0 0 var(--space-8) var(--space-8); border-left: 1px solid var(--line); }
.tl-item:last-child { padding-bottom: 0; border-left-color: transparent; }
.tl-dot { position: absolute; left: -6px; top: 5px; width: 11px; height: 11px; border-radius: var(--radius-full); background: var(--surface); border: 2px solid var(--line-control); }
.tl-item.is-current .tl-dot { background: var(--mint); border-color: var(--mint); box-shadow: 0 0 0 4px var(--mint-soft); }
.tl-period { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; margin: 0 0 var(--space-1); color: var(--ink-muted); }
.tl-org { margin: 0; font: 700 24px/30px var(--font-display); letter-spacing: -.015em; color: var(--ink); }
.tl-role { margin: 0; color: var(--ink-muted); }
.tl-bullets { margin: var(--space-3) 0 0; padding-left: 18px; max-width: var(--measure); }
.tl-bullets li + li { margin-top: var(--space-1); }
.tl-tech { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-3) 0 0; padding: 0; list-style: none; }

/* Contact / footer */
.foot { background: var(--surface-sunken); border-top: 1px solid var(--line); padding: var(--space-16) 0 var(--space-8); }
.foot-title { margin: 0; font: 800 clamp(48px, 11vw, 112px)/.95 var(--font-display); letter-spacing: -.04em; color: var(--ink); }
.foot-title::after { content: "."; color: var(--mint); }
.foot-lede { margin: var(--space-5) 0 var(--space-8); font-size: 18px; line-height: 28px; max-width: var(--measure); color: var(--ink-muted); }
.foot-email { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3) var(--space-4); margin: 0; }
.foot-email-text { color: var(--ink-muted); outline: none; user-select: all; }
.foot-email-text:empty { display: none; }
#email-show[hidden] { display: none; }
.foot-links { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-6) 0 0; padding: 0; list-style: none; }
.foot-small { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2); margin-top: var(--space-16); padding-top: var(--space-4); border-top: 1px solid var(--line); font: 400 14px/22px var(--font-sans); color: var(--ink-muted); }
.foot-small a { color: inherit; }

/* bp-md: tablet and up */
@media (min-width: 768px) {
  .wrap { padding: 0 var(--gutter-md); }
  .nav-links { display: flex; }
  .nav-menu, .nav-sheet { display: none !important; }
  .hero { padding: 120px 0 200px; }
  .hero-wave { bottom: 40px; height: 140px; }
  .hero-actions { flex-direction: row; flex-wrap: wrap; }
  .hero-actions .btn-block { width: auto; }
  .section { padding-top: var(--space-24); }
  .section:last-of-type { padding-bottom: var(--space-24); }
  .sh { grid-template-columns: 1fr auto; align-items: end; column-gap: var(--space-6); }
  .sh-lede { grid-column: 1; }
  .sh-action { grid-column: 2; grid-row: 1 / span 2; align-self: end; margin: 0; }
  .skills { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .card { padding: var(--space-6); }
  .card.is-featured { grid-column: span 2; padding: var(--space-8); }
  .tl-item { display: grid; grid-template-columns: 200px 1fr; column-gap: var(--space-6); }
  .tl-period { padding-top: 4px; align-self: start; }
  .foot { padding: var(--space-24) 0 var(--space-8); }
}

/* bp-lg: desktop */
@media (min-width: 1024px) {
  .skills { grid-template-columns: repeat(4, 1fr); }
  .grid { grid-template-columns: repeat(3, 1fr); }
}