/* =============================================================
   Santosh Balakrishnan — Portfolio
   Warm & minimal design system
   ============================================================= */

/* ---------- Tokens ---------- */
:root {
  /* warm neutral palette */
  --paper:      #f5f0e7;   /* page background (bone)          */
  --paper-2:    #efe7d9;   /* alternate section background    */
  --card:       #fcfaf5;   /* cards / surfaces                */
  --ink:        #221d16;   /* primary text (warm near-black)  */
  --ink-soft:   #3b342a;
  --muted:      #6c6355;   /* secondary text                  */
  --faint:      #938a7b;   /* tertiary text / captions        */
  --line:       #e1d7c6;   /* hairlines                       */
  --line-2:     #d3c6b1;
  --brass:      #a17c46;   /* brass accent (rules, eyebrows)  */
  --clay:       #ad5a33;   /* terracotta accent (interactive) */
  --clay-deep:  #8c4526;

  /* type */
  --serif: "Fraunces", "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  /* layout */
  --wrap: 1180px;
  --wrap-narrow: 820px;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --section-y: clamp(4rem, 9vw, 8rem);
  --radius: 3px;

  /* motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}
body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  font-size: 1.02rem;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
ul { list-style: none; padding: 0; }

/* ---------- Type ---------- */
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 380; line-height: 1.08; letter-spacing: -0.01em; color: var(--ink); }
.h-display { font-size: clamp(2.7rem, 7vw, 5.4rem); font-weight: 340; line-height: 1.0; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.7rem); }
.serif-italic { font-style: italic; }

.eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brass);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
}
.eyebrow::before {
  content: "";
  width: 1.6rem;
  height: 1px;
  background: var(--brass);
  display: inline-block;
}
.eyebrow.no-rule::before { display: none; }

.lead { font-size: clamp(1.1rem, 1.6vw, 1.3rem); color: var(--ink-soft); line-height: 1.6; }
.muted { color: var(--muted); }
p + p { margin-top: 1rem; }

/* ---------- Layout helpers ---------- */
.wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }
.wrap-narrow { width: min(100% - 2 * var(--gutter), var(--wrap-narrow)); margin-inline: auto; }
.section { padding-block: var(--section-y); }
.section--alt { background: var(--paper-2); }
.section--ink { background: var(--ink); color: var(--paper); }
.section-head { max-width: 640px; margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.section-head .eyebrow { margin-bottom: 1.1rem; }
.section-head p { margin-top: 1rem; color: var(--muted); }
.hairline { border: 0; height: 1px; background: var(--line); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--sans); font-size: 0.82rem; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.95em 1.6em; border-radius: var(--radius);
  border: 1px solid transparent; transition: all 0.35s var(--ease);
  white-space: nowrap;
}
.btn .arrow { transition: transform 0.35s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn--primary { background: var(--ink); color: var(--paper); }
.btn--primary:hover { background: var(--clay-deep); }
.btn--ghost { border-color: var(--line-2); color: var(--ink); }
.btn--ghost:hover { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.btn--on-ink { border-color: rgba(245,240,231,0.35); color: var(--paper); }
.btn--on-ink:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

.link-underline {
  position: relative; color: var(--ink); font-weight: 500;
  background-image: linear-gradient(var(--clay), var(--clay));
  background-size: 0% 1px; background-repeat: no-repeat; background-position: 0 100%;
  transition: background-size 0.4s var(--ease), color 0.3s var(--ease);
  padding-bottom: 2px;
}
.link-underline:hover { background-size: 100% 1px; color: var(--clay-deep); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.site-header.scrolled { border-bottom-color: var(--line); }
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; height: 72px;
}
.brand { display: flex; flex-direction: column; line-height: 1; }
.brand__name { font-family: var(--serif); font-size: 1.18rem; font-weight: 450; letter-spacing: 0.01em; }
.brand__role { font-size: 0.62rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--muted); margin-top: 0.35rem; }
.nav { display: flex; align-items: center; gap: clamp(1.2rem, 2.5vw, 2.4rem); }
.nav__links { display: flex; align-items: center; gap: clamp(1.2rem, 2.5vw, 2.2rem); }
.nav__link {
  font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft);
  position: relative; padding-block: 0.4rem; transition: color 0.3s var(--ease);
}
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--clay); transition: width 0.35s var(--ease);
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::after, .nav__link.is-active::after { width: 100%; }
.nav__link.is-active { color: var(--ink); }

.nav-toggle { display: none; width: 30px; height: 30px; position: relative; }
.nav-toggle span { position: absolute; left: 3px; right: 3px; height: 1.5px; background: var(--ink); transition: all 0.35s var(--ease); }
.nav-toggle span:nth-child(1) { top: 9px; }
.nav-toggle span:nth-child(2) { top: 15px; }
.nav-toggle span:nth-child(3) { top: 21px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 15px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { top: 15px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; padding-top: clamp(2.5rem, 6vw, 5rem); padding-bottom: clamp(3rem, 6vw, 5.5rem); overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.hero__eyebrow { margin-bottom: 1.6rem; }
.hero h1 { margin-bottom: 1.5rem; }
.hero__meta { display: flex; flex-wrap: wrap; gap: 0.5rem 1.4rem; margin-bottom: 1.8rem; color: var(--muted); font-size: 0.9rem; letter-spacing: 0.02em; }
.hero__meta span { display: inline-flex; align-items: center; gap: 0.6rem; }
.hero__meta span + span::before { content: "·"; color: var(--brass); margin-right: 0.9rem; }
.hero__lead { max-width: 46ch; margin-bottom: 2.3rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.9rem; }
.hero__art { position: relative; }
.hero__art img {
  width: 100%; mix-blend-mode: multiply;
  filter: saturate(0.9) contrast(1.02);
}
.hero__art::after {
  content: "SELECTED WORKS · 2012—2025";
  position: absolute; right: 0; bottom: -1.6rem;
  font-size: 0.62rem; letter-spacing: 0.26em; color: var(--faint);
}

/* ---------- Marquee / stat strip ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border-block: 1px solid var(--line); }
.stat { background: var(--paper); padding: clamp(1.6rem, 3vw, 2.4rem) clamp(1rem, 2vw, 1.6rem); }
.stat__num { font-family: var(--serif); font-size: clamp(1.8rem, 3.2vw, 2.6rem); font-weight: 360; line-height: 1; color: var(--ink); }
.stat__num .unit { color: var(--clay); }
.stat__label { margin-top: 0.7rem; font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }

/* ---------- Work grid ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem 1.6rem; margin-bottom: clamp(1.8rem, 3vw, 2.8rem); align-items: center; border-bottom: 1px solid var(--line); padding-bottom: 1.2rem; }
.filter {
  font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
  padding: 0.3rem 0; position: relative; transition: color 0.3s var(--ease);
}
.filter::after { content: ""; position: absolute; left: 0; bottom: -1px; height: 1.5px; width: 0; background: var(--clay); transition: width 0.35s var(--ease); }
.filter:hover { color: var(--ink); }
.filter.is-active { color: var(--ink); }
.filter.is-active::after { width: 100%; }
.filter__count { font-size: 0.62rem; color: var(--faint); vertical-align: super; margin-left: 0.15rem; }

.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1.6rem, 3vw, 2.8rem); }
.card { display: block; position: relative; }
.card.is-hidden { display: none; }
.card__media { position: relative; overflow: hidden; background: var(--paper-2); aspect-ratio: 4 / 3; border-radius: var(--radius); }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease), filter 0.6s var(--ease); }
.card:hover .card__media img { transform: scale(1.05); }
.card__tag {
  position: absolute; top: 1rem; left: 1rem; z-index: 2;
  background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(4px);
  color: var(--ink-soft); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 0.4rem 0.75rem; border-radius: 2px;
}
.card__body { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding-top: 1.1rem; }
.card__title { font-family: var(--serif); font-size: 1.3rem; font-weight: 420; line-height: 1.2; transition: color 0.3s var(--ease); }
.card:hover .card__title { color: var(--clay-deep); }
.card__place { font-size: 0.82rem; color: var(--muted); margin-top: 0.3rem; }
.card__go { font-size: 1.1rem; color: var(--brass); transition: transform 0.35s var(--ease); flex-shrink: 0; }
.card:hover .card__go { transform: translate(3px, -3px); }

/* ---------- Highlights (why hire) ---------- */
.hl-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.hl { background: var(--card); padding: clamp(1.5rem, 2.4vw, 2.2rem); display: flex; flex-direction: column; gap: 0.7rem; }
.hl__eyebrow { font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--brass); }
.hl__title { font-family: var(--serif); font-size: 1.35rem; font-weight: 430; line-height: 1.15; }
.hl__body { color: var(--muted); font-size: 0.92rem; line-height: 1.6; }

/* ---------- Boards & drawings (full sheets) ---------- */
.sheet-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1rem, 2.2vw, 1.8rem); }
.sheet { position: relative; overflow: hidden; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; cursor: zoom-in; }
.sheet img { width: 100%; height: auto; display: block; transition: transform 0.8s var(--ease); }
.sheet:hover img { transform: scale(1.02); }
.sheet__cap { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 0.9rem 1.1rem; font-size: 0.82rem; color: var(--ink-soft); border-top: 1px solid var(--line); background: var(--card); }
.sheet__zoom { font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brass); white-space: nowrap; }

/* ---------- Capabilities / tag rows ---------- */
.taglist { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.tag {
  font-size: 0.8rem; letter-spacing: 0.03em; color: var(--ink-soft);
  border: 1px solid var(--line-2); border-radius: 100px; padding: 0.45rem 1rem; background: var(--card);
}
.cols-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(2rem, 5vw, 4rem); }
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.6rem, 4vw, 3rem); }

/* Circular avatar */
.avatar { width: 88px; height: 88px; border-radius: 50%; object-fit: cover; display: block;
  border: 1px solid var(--line-2); box-shadow: 0 6px 20px rgba(34,29,22,0.08); }

/* Hero identity row — avatar beside the name */
.hero__id { display: flex; align-items: center; gap: clamp(1rem, 2vw, 1.6rem); margin-bottom: 1.7rem; }
.hero__id > div { min-width: 0; }   /* allow the name to wrap instead of overflowing */
.avatar--hero { width: clamp(76px, 9vw, 106px); height: clamp(76px, 9vw, 106px); flex-shrink: 0; }
.hero__id .hero__eyebrow { margin-bottom: 0.6rem; }
.hero__id h1 { margin-bottom: 0; font-size: clamp(2.2rem, 5vw, 4.4rem); }

/* About-page intro with portrait */
.about-intro { display: grid; grid-template-columns: 0.72fr 1.28fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.about-portrait { border-radius: var(--radius); overflow: hidden; background: var(--paper-2); position: relative; }
.about-portrait::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 1px rgba(34,29,22,0.06); border-radius: var(--radius); }
.about-portrait img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; display: block; }

/* ---------- Feature list (ticks) ---------- */
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.85rem 2.4rem; }
.features li { position: relative; padding-left: 1.6rem; color: var(--ink-soft); font-size: 0.96rem; line-height: 1.55; }
.features li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 0.5rem; height: 0.5rem; border-left: 1.5px solid var(--clay); border-bottom: 1.5px solid var(--clay);
  transform: rotate(-45deg);
}

/* ---------- Meta / spec list ---------- */
.specs { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec { background: var(--card); padding: 1.3rem 1.4rem; }
.spec__k { font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--brass); }
.spec__v { margin-top: 0.5rem; font-size: 0.98rem; color: var(--ink); line-height: 1.4; }

/* ---------- Timeline ---------- */
.timeline { position: relative; }
.tl-item { display: grid; grid-template-columns: 200px 1fr; gap: clamp(1rem, 4vw, 3.5rem); padding-block: clamp(1.6rem, 3vw, 2.4rem); border-top: 1px solid var(--line); }
.tl-item:last-child { border-bottom: 1px solid var(--line); }
.tl-when { font-size: 0.82rem; letter-spacing: 0.08em; color: var(--muted); }
.tl-when .place { display: block; margin-top: 0.4rem; color: var(--faint); font-size: 0.78rem; }
.tl-role { font-family: var(--serif); font-size: 1.35rem; font-weight: 430; }
.tl-org { color: var(--clay-deep); font-size: 0.92rem; letter-spacing: 0.02em; margin-top: 0.2rem; margin-bottom: 0.7rem; }
.tl-desc { color: var(--muted); max-width: 62ch; font-size: 0.96rem; }

/* ---------- Education / cert cards ---------- */
.edu { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.edu-row { background: var(--card); padding: 1.5rem clamp(1.2rem, 2vw, 1.8rem); display: grid; grid-template-columns: 130px 1fr auto; gap: 1.5rem; align-items: baseline; }
.edu-row .yr { font-size: 0.82rem; color: var(--muted); letter-spacing: 0.04em; }
.edu-row .deg { font-family: var(--serif); font-size: 1.15rem; font-weight: 430; }
.edu-row .inst { color: var(--muted); font-size: 0.9rem; margin-top: 0.25rem; }
.edu-row .mark { font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brass); text-align: right; white-space: nowrap; }

.cert-list li { display: flex; gap: 1rem; align-items: baseline; padding: 1.1rem 0; border-top: 1px solid var(--line); }
.cert-list li:last-child { border-bottom: 1px solid var(--line); }
.cert-list .dot { color: var(--clay); font-size: 1.1rem; line-height: 1; }
.cert-list .yr { margin-left: auto; color: var(--faint); font-size: 0.82rem; letter-spacing: 0.06em; }

/* ---------- Gallery (natural masonry via CSS columns) ---------- */
.gallery { column-count: 3; column-gap: clamp(0.7rem, 1.4vw, 1rem); }
.gallery--2 { column-count: 2; }
.gallery figure {
  position: relative; overflow: hidden; border-radius: var(--radius); background: var(--paper-2);
  cursor: zoom-in; break-inside: avoid; margin-bottom: clamp(0.7rem, 1.4vw, 1rem); display: block;
}
.gallery img { width: 100%; height: auto; display: block; transition: transform 0.9s var(--ease); }
.gallery figure:hover img { transform: scale(1.04); }
.gallery figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 1.6rem 1rem 0.7rem;
  font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; color: #fff;
  background: linear-gradient(transparent, rgba(0,0,0,0.6)); opacity: 0; transition: opacity 0.4s var(--ease);
  pointer-events: none;
}
.gallery figure:hover figcaption { opacity: 1; }
@media (max-width: 760px) { .gallery { column-count: 2; } }
@media (max-width: 460px) { .gallery { column-count: 1; } }

/* ---------- Project page ---------- */
.proj-hero { position: relative; margin-top: clamp(1.5rem, 3vw, 2.5rem); }
.proj-hero__img { width: 100%; aspect-ratio: 21 / 9; object-fit: cover; border-radius: var(--radius); background: var(--paper-2); }
.proj-head { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: end; }
.proj-head h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); font-weight: 350; }
.proj-head .eyebrow { margin-bottom: 1.2rem; }
.crumb { font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 2rem; display: inline-flex; gap: 0.6rem; align-items: center; }
.crumb a:hover { color: var(--clay-deep); }

.proj-nav { display: flex; justify-content: space-between; gap: 1rem; border-top: 1px solid var(--line); padding-top: 2rem; margin-top: clamp(3rem,6vw,5rem); }
.proj-nav a { display: flex; flex-direction: column; gap: 0.35rem; }
.proj-nav .dir { font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.proj-nav .ttl { font-family: var(--serif); font-size: 1.15rem; color: var(--ink); transition: color 0.3s var(--ease); }
.proj-nav a:hover .ttl { color: var(--clay-deep); }
.proj-nav .next { text-align: right; align-items: flex-end; }

/* ---------- Full-sheet CTA ---------- */
.sheet-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.3rem, 3vw, 2rem) clamp(1.4rem, 3vw, 2.2rem);
}
.sheet-cta__txt h4 { font-size: 1.2rem; font-weight: 440; }
.sheet-cta__txt p { color: var(--muted); font-size: 0.9rem; margin-top: 0.3rem; }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200; display: none;
  background: rgba(28, 24, 18, 0.94); padding: clamp(1rem, 4vw, 3rem);
  align-items: center; justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 90vh; object-fit: contain; box-shadow: 0 30px 80px rgba(0,0,0,0.5); border-radius: 2px; }
.lightbox__close { position: absolute; top: clamp(1rem,3vw,2rem); right: clamp(1rem,3vw,2rem); color: var(--paper); font-size: 2rem; line-height: 1; width: 44px; height: 44px; border: 1px solid rgba(245,240,231,0.4); border-radius: 50%; transition: all 0.3s var(--ease); }
.lightbox__close:hover { background: var(--paper); color: var(--ink); }
.lightbox__cap { position: absolute; bottom: clamp(1rem,3vw,2rem); left: 0; right: 0; text-align: center; color: rgba(245,240,231,0.7); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--paper); padding-block: clamp(3.5rem, 7vw, 6rem) 2rem; }
.footer-cta { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(2rem,5vw,4rem); align-items: end; padding-bottom: clamp(2.5rem,5vw,4rem); border-bottom: 1px solid rgba(245,240,231,0.15); }
.footer-cta h2 { color: var(--paper); font-size: clamp(2rem, 4.5vw, 3.4rem); font-weight: 340; }
.footer-cta .eyebrow { color: var(--brass); margin-bottom: 1.2rem; }
.footer-contacts { display: flex; flex-direction: column; gap: 0.9rem; }
.footer-contacts a { display: inline-flex; align-items: center; gap: 0.7rem; color: var(--paper); font-size: 1.02rem; width: fit-content; opacity: 0.9; transition: opacity 0.3s var(--ease), color 0.3s var(--ease); }
.footer-contacts a:hover { opacity: 1; color: #e8b98a; }
.footer-contacts .k { font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--brass); min-width: 74px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; padding-top: 2rem; color: rgba(245,240,231,0.55); font-size: 0.78rem; letter-spacing: 0.04em; }
.footer-bottom a { color: rgba(245,240,231,0.75); }
.footer-bottom a:hover { color: var(--paper); }

/* ---------- Reveal animation ---------- */
[data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }

/* ---------- Utilities ---------- */
.mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 2rem; } .mt-3 { margin-top: 3rem; }
.mb-2 { margin-bottom: 2rem; }
.center { text-align: center; }
.divider-lg { height: clamp(2.5rem, 6vw, 5rem); }

/* =============================================================
   Responsive
   ============================================================= */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__art { order: -1; max-width: 520px; }
  .proj-head { grid-template-columns: 1fr; align-items: start; }
  .footer-cta { grid-template-columns: 1fr; }
  .cols-2 { grid-template-columns: 1fr; }
  .hl-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .nav__links { display: none; }
  .nav-toggle { display: block; }
  .nav.open .nav__links {
    display: flex; flex-direction: column; align-items: flex-start; gap: 1.3rem;
    position: absolute; top: 72px; left: 0; right: 0; padding: 1.8rem var(--gutter) 2.2rem;
    background: var(--paper); border-bottom: 1px solid var(--line);
  }
  .nav.open .nav__links .btn { margin-top: 0.4rem; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .work-grid { grid-template-columns: 1fr; }
  .features { grid-template-columns: 1fr; }
  .cols-3 { grid-template-columns: 1fr; }
  .hl-grid { grid-template-columns: 1fr; }
  .sheet-grid { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .about-portrait { max-width: 320px; }
  .tl-item { grid-template-columns: 1fr; gap: 0.6rem; }
  .edu-row { grid-template-columns: 1fr; gap: 0.4rem; }
  .edu-row .mark { text-align: left; }
  .proj-hero__img { aspect-ratio: 4 / 3; }
  .hero__art::after { display: none; }
}
@media (max-width: 460px) {
  .stats { grid-template-columns: 1fr; }
}