/* Sameer Zahir — portfolio v2. Refined Gruvbox + depth. */

@font-face {
  font-family: "JetBrains Mono Nerd";
  src: url("../fonts/JetBrainsMonoNerd-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono Nerd";
  src: url("../fonts/JetBrainsMonoNerd-Bold.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}

:root {
  --font: "JetBrains Mono Nerd", ui-monospace, "Cascadia Code", Menlo, Consolas, monospace;
  --maxw: 74rem;
  --radius: 16px;
  --radius-sm: 10px;
  --tr: 220ms cubic-bezier(.4, 0, .2, 1);
}
:root[data-theme="light"] {
  --bg: #fbf1c7; --bg-soft: #f2e5bc; --bg-1: #ebdbb2; --bg-2: #d5c4a1;
  --fg: #3c3836; --fg-strong: #282828; --fg-mute: #665c54; --fg-faint: #a89984;
  --accent: #af3a03; --accent-bright: #d65d0e; --aqua: #427b58; --blue: #076678;
  --border: #e6d9ad; --border-strong: #d5c4a1;
  --glow: radial-gradient(48% 60% at 78% -6%, rgba(214,93,14,.20), transparent 64%), radial-gradient(46% 56% at 4% 18%, rgba(66,123,88,.16), transparent 60%);
  --shadow: 0 12px 34px rgba(60,56,54,.12), 0 3px 10px rgba(60,56,54,.07);
}
:root[data-theme="dark"] {
  --bg: #282828; --bg-soft: #32302f; --bg-1: #3c3836; --bg-2: #504945;
  --fg: #ebdbb2; --fg-strong: #fbf1c7; --fg-mute: #a89984; --fg-faint: #7c6f64;
  --accent: #fe8019; --accent-bright: #fe8019; --aqua: #8ec07c; --blue: #83a598;
  --border: #3c3836; --border-strong: #504945;
  --glow: radial-gradient(48% 60% at 78% -6%, rgba(254,128,25,.16), transparent 64%), radial-gradient(46% 56% at 4% 18%, rgba(142,192,124,.12), transparent 60%);
  --shadow: 0 16px 44px rgba(0,0,0,.5), 0 4px 12px rgba(0,0,0,.4);
}

/* dark showcase band — constant dark in both themes so screenshots pop */
.band--dark {
  --d-bg: #1d2021; --d-surface: #282828; --d-surface-2: #32302f;
  --d-fg: #ebdbb2; --d-fg-strong: #fbf1c7; --d-fg-mute: #a89984;
  --d-border: #3c3836; --d-accent: #fe8019; --d-aqua: #8ec07c;
}

* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font); background: var(--bg); color: var(--fg);
  line-height: 1.65; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
::selection { background: color-mix(in srgb, var(--accent) 28%, transparent); }
a { color: inherit; text-decoration: none; }
svg { width: 1em; height: 1em; }
img { max-width: 100%; display: block; }
h1, h2, h3 { letter-spacing: -.02em; }

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--maxw); margin: 0 auto; padding: .9rem 1.6rem;
  background: color-mix(in srgb, var(--bg) 78%, transparent); backdrop-filter: blur(12px);
}
.nav__brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; color: var(--fg-strong); }
.nav__mark {
  display: grid; place-items: center; width: 30px; height: 30px; border-radius: 9px;
  background: var(--fg-strong); color: var(--bg); font-size: .78rem; font-weight: 700; letter-spacing: -.04em;
}
:root[data-theme="dark"] .nav__mark { background: var(--accent); color: #1d2021; }
.nav__links { display: flex; align-items: center; gap: 1.4rem; font-size: .9rem; }
.nav__links a { color: var(--fg-mute); transition: color var(--tr); }
.nav__links a:hover { color: var(--accent); }
.nav__theme { background: none; border: 0; color: var(--fg-mute); cursor: pointer; display: grid; place-items: center; padding: .35rem; border-radius: 9px; }
.nav__theme:hover { background: var(--bg-1); color: var(--accent); }
.nav__theme svg { width: 18px; height: 18px; }
.nav__theme .i-sun, .nav__theme .i-moon { display: none; }
:root[data-theme="light"] .nav__theme .i-moon { display: block; }
:root[data-theme="dark"] .nav__theme .i-sun { display: block; }

/* ---- layout ---- */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 1.6rem; }
.section { padding: 4.5rem 0; }
.section__head { display: flex; align-items: center; gap: 1rem; margin-bottom: 2.4rem; }
.section__head h2 { font-size: 1.05rem; font-weight: 700; text-transform: uppercase; letter-spacing: .14em; color: var(--accent); white-space: nowrap; }
.section__rule { flex: 1; height: 1px; background: var(--border-strong); }
.section__note { font-size: .8rem; color: var(--fg-faint); white-space: nowrap; }

/* ---- hero ---- */
.hero { position: relative; padding: 5.5rem 0 3.5rem; }
.hero__glow { position: absolute; inset: -8rem -20rem auto -20rem; height: 46rem; background: var(--glow); pointer-events: none; z-index: -1; }
.hero__eyebrow { font-size: .9rem; color: var(--fg-mute); letter-spacing: .05em; margin-bottom: 1.3rem; }
.hero__title { font-size: clamp(3rem, 9vw, 5.6rem); font-weight: 700; line-height: .96; color: var(--fg-strong); letter-spacing: -.045em; }
.hero__title .accent { color: var(--accent); }
.hero__lede { max-width: 40rem; margin: 1.9rem 0 0; font-size: 1.1rem; color: var(--fg-mute); }
.hero__cta { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 2.2rem; }

/* stat strip */
.stats { list-style: none; display: flex; flex-wrap: wrap; gap: 2.6rem; margin: 3.2rem 0 0; padding: 1.6rem 0 0; border-top: 1px solid var(--border); }
.stats li { display: flex; flex-direction: column; }
.stats b { font-size: 2.1rem; font-weight: 700; color: var(--fg-strong); line-height: 1; }
.stats span { font-size: .82rem; color: var(--fg-mute); margin-top: .35rem; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .62rem 1.15rem; border-radius: 11px; font-size: .9rem; font-weight: 700;
  border: 1px solid var(--border-strong); color: var(--fg-strong); background: var(--bg-soft);
  cursor: pointer; transition: transform var(--tr), background var(--tr), border-color var(--tr), color var(--tr);
}
.btn:hover { transform: translateY(-2px); border-color: var(--accent); color: var(--accent); }
.btn--primary { background: var(--accent); border-color: var(--accent); color: #fff8e8; }
:root[data-theme="dark"] .btn--primary { color: #1d2021; }
.btn--primary:hover { background: var(--accent-bright); border-color: var(--accent-bright); color: #fff8e8; }
:root[data-theme="dark"] .btn--primary:hover { color: #1d2021; }
.btn__i { width: 16px; height: 16px; }
.btn--sm { padding: .42rem .8rem; font-size: .82rem; border-radius: 9px; }

/* ---- capabilities ---- */
.cap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1rem; }
.cap {
  padding: 1.5rem; background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius);
  transition: transform var(--tr), border-color var(--tr), box-shadow var(--tr);
}
.cap:hover { transform: translateY(-3px); border-color: var(--accent); box-shadow: var(--shadow); }
.cap__icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: var(--bg-1); color: var(--accent); margin-bottom: 1rem; }
.cap__icon svg { width: 22px; height: 22px; }
.cap h3 { font-size: 1.08rem; color: var(--fg-strong); margin-bottom: .5rem; }
.cap p { font-size: .9rem; color: var(--fg-mute); line-height: 1.55; }

/* ---- dark showcase band ---- */
.band--dark { background: var(--d-bg); color: var(--d-fg); margin-top: 1rem; }
.band__inner { max-width: var(--maxw); margin: 0 auto; padding: 4.5rem 1.6rem; }
.section__head--light h2 { color: var(--d-accent); }
.band--dark .section__rule { background: var(--d-border); }
.band--dark .section__note { color: var(--d-fg-mute); }

/* featured — large alternating rows */
.featured { display: flex; flex-direction: column; gap: 2rem; margin-bottom: 2.2rem; }
.feat {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 2.2rem; align-items: center;
  background: var(--d-surface); border: 1px solid var(--d-border); border-radius: var(--radius);
  padding: 1.4rem; overflow: hidden;
}
.feat:nth-child(even) .feat__media { order: 2; }
.feat__media { border-radius: var(--radius-sm); overflow: hidden; border: 1px solid var(--d-border); background: #000; box-shadow: 0 18px 40px rgba(0,0,0,.45); }
.feat__chrome { display: flex; gap: 6px; padding: 9px 12px; background: var(--d-surface-2); border-bottom: 1px solid var(--d-border); }
.feat__chrome i { width: 10px; height: 10px; border-radius: 50%; background: #504945; }
.feat__chrome i:nth-child(1) { background: #cc5c52; } .feat__chrome i:nth-child(2) { background: #d8a657; } .feat__chrome i:nth-child(3) { background: #8aa872; }
.feat__media img { width: 100%; aspect-ratio: 16/10; object-fit: cover; object-position: top center; }
.feat__body { padding: .6rem 1rem .6rem 0; }
.feat__tags { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: .8rem; }
.tag { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 700; color: var(--d-aqua); background: color-mix(in srgb, var(--d-aqua) 14%, transparent); border: 1px solid color-mix(in srgb, var(--d-aqua) 30%, transparent); border-radius: 7px; padding: .25rem .55rem; }
.feat__body h3 { font-size: 1.9rem; color: var(--d-fg-strong); margin-bottom: .7rem; }
.feat__body p { color: var(--d-fg-mute); font-size: .98rem; line-height: 1.6; }
.tech { list-style: none; display: flex; flex-wrap: wrap; gap: .45rem; padding: 0; margin: 1.2rem 0; }
.tech li { font-size: .76rem; color: var(--d-fg); background: var(--d-surface-2); border: 1px solid var(--d-border); border-radius: 7px; padding: .3rem .6rem; }
.links { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }
.badge-private { display: inline-flex; align-items: center; gap: .35rem; font-size: .8rem; color: var(--d-fg-mute); }
.badge-private svg { width: 14px; height: 14px; }
.dlink { display: inline-flex; align-items: center; gap: .4rem; font-size: .85rem; font-weight: 700; color: var(--d-accent); border: 1px solid color-mix(in srgb, var(--d-accent) 40%, transparent); border-radius: 9px; padding: .42rem .8rem; transition: background var(--tr), transform var(--tr); }
.dlink:hover { background: color-mix(in srgb, var(--d-accent) 14%, transparent); transform: translateY(-1px); }
.dlink--ghost { color: var(--d-fg); border-color: var(--d-border); }
.dlink svg { width: 15px; height: 15px; }

/* work grid (secondary projects) */
.work-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(19rem, 1fr)); gap: 1.4rem; }
.pcard { display: flex; flex-direction: column; background: var(--d-surface); border: 1px solid var(--d-border); border-radius: var(--radius); overflow: hidden; transition: transform var(--tr), border-color var(--tr), box-shadow var(--tr); }
.pcard:hover { transform: translateY(-4px); border-color: var(--d-accent); box-shadow: 0 20px 44px rgba(0,0,0,.4); }
.pcard__media { aspect-ratio: 16/10; overflow: hidden; border-bottom: 1px solid var(--d-border); background: #000; }
.pcard__media img { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform var(--tr); }
.pcard:hover .pcard__media img { transform: scale(1.03); }
.pcard__body { padding: 1.15rem 1.2rem 1.3rem; display: flex; flex-direction: column; flex: 1; }
.pcard__top { display: flex; align-items: center; justify-content: space-between; gap: .5rem; margin-bottom: .5rem; }
.pcard__top h3 { font-size: 1.15rem; color: var(--d-fg-strong); }
.pcard__tags { display: flex; gap: .35rem; }
.pcard__blurb { font-size: .87rem; color: var(--d-fg-mute); line-height: 1.55; flex: 1; }
.pcard .tech { margin: .9rem 0; }
.pcard .links { margin-top: auto; }

/* ---- case studies ---- */
.cs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1.2rem; }
.cs { display: flex; flex-direction: column; padding: 1.6rem; background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); position: relative; overflow: hidden; }
.cs::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: linear-gradient(var(--accent), var(--aqua)); }
.cs__kicker { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 700; color: var(--aqua); margin-bottom: .9rem; }
.cs__metric { font-size: 1.7rem; font-weight: 700; color: var(--accent); line-height: 1; }
.cs__metric small { display: block; font-size: .76rem; font-weight: 400; color: var(--fg-faint); margin-top: .35rem; letter-spacing: 0; }
.cs h3 { font-size: 1.08rem; color: var(--fg-strong); margin: 1.1rem 0 .55rem; }
.cs p { font-size: .88rem; color: var(--fg-mute); line-height: 1.55; }

/* ---- skills ---- */
.sk-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1.4rem 2rem; }
.sk__group h3 { font-size: .76rem; text-transform: uppercase; letter-spacing: .1em; color: var(--accent); margin-bottom: .8rem; }
.sk__chips { display: flex; flex-wrap: wrap; gap: .45rem; }
.chip { font-size: .82rem; color: var(--fg); background: var(--bg-soft); border: 1px solid var(--border-strong); border-radius: 8px; padding: .35rem .65rem; transition: border-color var(--tr), color var(--tr); }
.chip:hover { border-color: var(--accent); color: var(--accent); }

/* ---- about ---- */
.about__body { max-width: 46rem; display: flex; flex-direction: column; gap: 1.2rem; font-size: 1.06rem; color: var(--fg-mute); }
.about__body strong { color: var(--fg-strong); }
.about__kicker { color: var(--fg-strong); font-weight: 700; }

/* ---- contact ---- */
.contact { text-align: center; padding: 5rem 0; }
.contact__title { font-size: clamp(2.2rem, 6vw, 3.2rem); color: var(--fg-strong); }
.contact__sub { color: var(--fg-mute); margin: .9rem 0 2rem; }
.contact__links { display: flex; flex-wrap: wrap; gap: .8rem; justify-content: center; }

/* ---- footer ---- */
.foot { max-width: var(--maxw); margin: 0 auto; padding: 2rem 1.6rem; display: flex; flex-wrap: wrap; gap: .5rem; justify-content: space-between; border-top: 1px solid var(--border); font-size: .82rem; color: var(--fg-faint); }

/* ---- reveal on scroll (fail-open: only hidden once JS opts in via .reveal-on) ---- */
html.reveal-on .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s cubic-bezier(.4,0,.2,1); }
html.reveal-on .reveal.in { opacity: 1; transform: none; }

/* ---- project detail modal ---- */
body.pmodal-open { overflow: hidden; }
.pmodal { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 1.2rem; }
.pmodal[hidden] { display: none; }
.pmodal__backdrop { position: absolute; inset: 0; background: rgba(20, 18, 16, .58); backdrop-filter: blur(3px); animation: pfade .2s ease; }
.pmodal__panel {
  position: relative; z-index: 1; width: min(56rem, 100%); max-height: 90vh; overflow-y: auto;
  background: var(--bg); border: 1px solid var(--border-strong); border-radius: var(--radius);
  box-shadow: var(--shadow); animation: ppop .24s cubic-bezier(.2, .7, .3, 1.2);
}
@keyframes pfade { from { opacity: 0; } }
@keyframes ppop { from { opacity: 0; transform: translateY(14px) scale(.985); } }
.pmodal__close {
  position: absolute; top: .85rem; right: .85rem; z-index: 2;
  display: grid; place-items: center; width: 2.3rem; height: 2.3rem; border-radius: 50%;
  background: var(--bg-soft); border: 1px solid var(--border-strong); color: var(--fg-strong); cursor: pointer;
  transition: background var(--tr), color var(--tr);
}
.pmodal__close svg { width: 18px; height: 18px; }
.pmodal__close:hover { background: var(--bg-1); color: var(--accent); }
.pmodal__media { background: #1d2021; border-radius: var(--radius) var(--radius) 0 0; overflow: hidden; }
.pmodal__media img { width: 100%; max-height: 56vh; object-fit: cover; object-position: top center; display: block; }
.pmodal__body { padding: 1.7rem clamp(1.3rem, 4vw, 2.3rem) 2rem; }
.pmodal__tags { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: .8rem; }
.pmodal__tags .tag { color: var(--aqua); background: color-mix(in srgb, var(--aqua) 12%, transparent); border: 1px solid color-mix(in srgb, var(--aqua) 30%, transparent); }
.pmodal__body h2 { font-size: clamp(1.6rem, 4vw, 2.1rem); color: var(--fg-strong); }
.pmodal__blurb { color: var(--fg-mute); font-size: 1rem; margin-top: .7rem; line-height: 1.6; }
.pmodal__h { font-size: .74rem; text-transform: uppercase; letter-spacing: .12em; color: var(--accent); margin: 1.6rem 0 .8rem; }
.pmodal__features { list-style: none; padding: 0; margin: 0; display: grid; gap: .6rem; }
.pmodal__features li { position: relative; padding-left: 1.7rem; color: var(--fg); font-size: .92rem; line-height: 1.45; }
.pmodal__features li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--aqua); font-weight: 700; }
.pmodal__body .tech { margin: 0; }
.pmodal__body .tech li { background: var(--bg-soft); border: 1px solid var(--border-strong); color: var(--fg); }
.pmodal__links { margin-top: 1.6rem; }
.pmodal__links .dlink { color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); }
.pmodal__links .dlink:hover { background: color-mix(in srgb, var(--accent) 12%, transparent); }
.pmodal__links .dlink--ghost { color: var(--fg-strong); border-color: var(--border-strong); }
.pmodal__links .badge-private { color: var(--fg-mute); }

/* clickable card affordance */
.feat, .pcard { cursor: pointer; }
.feat:focus-visible, .pcard:focus-visible { outline: 2px solid var(--d-accent); outline-offset: 3px; }
.card-more { display: block; margin-top: .9rem; font-size: .8rem; color: var(--d-accent); font-weight: 700; }
.feat:hover .card-more, .pcard:hover .card-more { text-decoration: underline; }

/* ---- responsive ---- */
@media (max-width: 800px) {
  .feat { grid-template-columns: 1fr; gap: 1.2rem; }
  .feat:nth-child(even) .feat__media { order: 0; }
  .feat__body { padding: 0 .4rem .6rem; }
  .feat__body h3 { font-size: 1.5rem; }
  .nav__links a:not(:last-child) { display: none; }
  .stats { gap: 1.6rem 2.2rem; }
  .stats b { font-size: 1.7rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto; } .reveal { opacity: 1; transform: none; } }