/* ==========================================================
   Sherry Yan — Portfolio
   All look-and-feel lives in these tokens. Change them first.
   ========================================================== */
:root {
  --bg: #ffffff;
  --ink: #111111;
  --muted: #8a8a8a;
  --rule: #d9d9d9;
  --placeholder: #f1f1f1;

  --font-display: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Helvetica Neue", Helvetica, Arial, sans-serif;

  --sidebar-w: 288px;
  --gutter: 28px;
  --gap: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img, video { display: block; width: 100%; height: auto; }

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  gap: var(--gutter);
  padding: 0 var(--gutter);
}

/* ---------- Sticky sidebar ---------- */
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  padding: var(--gutter) 0;
  display: flex;
  flex-direction: column;
}

.logo { display: inline-block; }
.logo img { width: 100%; max-width: 240px; height: auto; }
.logo:hover img { opacity: .7; }

.identity {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-top: 14px;
  font-size: 12px;
}
.identity p { line-height: 1.35; }

.links { list-style: none; text-align: right; font-size: 12px; line-height: 1.35; }
.links a, .links button {
  font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer;
  text-decoration: underline; text-underline-offset: 2px;
}
.links a:hover, .links button:hover { opacity: .55; }
.links .soon { color: var(--muted); cursor: default; }

/* Sidebar as a menu: Starter / Main Course / Desserts */
.menu { margin-top: 28px; }
.course { margin-bottom: 42px; }
.course-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--ink);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
}
.course-icon { height: 16px; width: auto; }
.course .project-list li:first-child { border-top: 0; }
.course .project-list li:last-child { border-bottom: 1px solid var(--rule); }

/* "Copied" toast beside the Email link */
.copy-toast {
  position: fixed; z-index: 50;
  padding: 3px 8px;
  font-size: 11px;
  color: #fff; background: var(--ink);
  opacity: 0; transform: translateX(-4px);
  transition: opacity .2s, transform .2s;
  pointer-events: none;
}
.copy-toast.is-on { opacity: 1; transform: none; }

.project-list { list-style: none; }

.project-list li { border-top: 1px solid var(--rule); }

.project-list a {
  display: block;
  padding: 12px 0;
  transition: opacity .2s;
}
.project-list a:hover { opacity: .55; }

.project-list .name {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .01em;
}
.project-list .tags {
  display: block;
  margin-top: 3px;
  font-size: 11px;
  color: var(--muted);
}
.project-list a.active .name::before { content: "→ "; }



.sidebar-foot {
  margin-top: auto;
  padding-top: 28px;
  font-size: 11px;
  color: var(--muted);
}

/* ---------- Right gallery ---------- */
.gallery { padding: var(--gutter) 0 120px; min-width: 0; }

.project {
  padding-bottom: 72px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: var(--gutter);
}
.project:last-child { border-bottom: 0; }

.project-head { margin-bottom: 14px; }
.project-head h2 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  text-transform: uppercase;
}
.project-head .tags { font-size: 12px; color: var(--muted); }

.project-head a:hover h2 { opacity: .55; }

/* Image grid: add .span-2 / .tall / .wide modifiers to frames */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap);
}
.frame {
  position: relative;
  background: var(--placeholder);
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.frame.span-2 { grid-column: span 2; aspect-ratio: 16 / 9; }
.frame.tall { aspect-ratio: 3 / 4; }
.frame.square { aspect-ratio: 1 / 1; }
.frame img, .frame video { width: 100%; height: 100%; object-fit: cover; }

/* Placeholder label — delete once real images are in */
.frame[data-label]::after {
  content: attr(data-label);
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-size: 11px;
  color: var(--muted);
}

/* ---------- Case study page ---------- */
.back { font-size: 12px; color: var(--muted); display: inline-block; margin-bottom: 20px; }
.back:hover { color: var(--ink); }

/* Label/meta on the left, explanation on the right (Selina-style rows) */
.case-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gutter);
  padding: 18px 0 28px;
  border-top: 1px solid var(--ink);
}
.case-row .text { font-size: 13px; line-height: 1.55; }
.case-row .text p + p { margin-top: .8em; }

.case-intro { margin-top: 24px; border-top: 0; }

.case-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
  padding: 14px 0;
  margin: 14px 0 20px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  font-size: 12px;
}
.case-meta dt { color: var(--muted); margin-bottom: 2px; }

.case-section { margin: 56px 0; }
.case-section .label {
  font-size: 13px;
  text-transform: uppercase;
}

.note { margin-top: 10px; font-size: 12px; color: var(--muted); font-style: italic; }

.next-project {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 18px 0;
  margin-top: 72px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  text-transform: uppercase;
}
.next-project .label { font-size: 12px; color: var(--muted); }
.next-project .name { font-size: 18px; font-weight: 500; }
.next-project:hover .name { opacity: .55; }

/* Bag section: product (left) | logo over hang tag + packaging (right) */
.brand-grid {
  display: grid;
  grid-template-columns: 4fr 5fr;
  gap: var(--gap);
}
.brand-grid > .frame { aspect-ratio: 2 / 3; }
.brand-right { display: grid; grid-template-rows: auto 1fr; gap: var(--gap); }
.brand-mockups { display: grid; grid-template-columns: 3fr 2fr; gap: var(--gap); }
.brand-mockups > * { min-height: 0; }
.frame.hangtag { aspect-ratio: auto; background: #fff; }
.frame.hangtag img { object-fit: cover; }

/* Logo carousel: click the left/right half to step through */
.carousel { aspect-ratio: 2 / 1; }
.carousel-track {
  display: flex;
  height: 100%;
  transition: transform .5s cubic-bezier(.4, 0, .2, 1);
}
.carousel-track img { flex: 0 0 100%; }
.carousel-btn {
  position: absolute; top: 0; bottom: 0; width: 50%;
  border: 0; background: none; cursor: pointer;
  display: flex; align-items: center; padding: 0 14px;
  font-size: 18px; color: var(--ink);
}
.carousel-btn.prev { left: 0; justify-content: flex-start; }
.carousel-btn.next { right: 0; justify-content: flex-end; }
.carousel-btn span { opacity: 0; transition: opacity .2s; }
.carousel:hover .carousel-btn span,
.carousel-btn:focus-visible span { opacity: .6; }

/* ---------- Mobile ---------- */
@media (max-width: 760px) {
  :root { --gutter: 16px; }
  .layout { grid-template-columns: 1fr; gap: 0; }
  .sidebar {
    position: static;
    height: auto;
    padding-bottom: 8px;
  }
  .sidebar-foot { display: none; }
  .grid { grid-template-columns: 1fr; }
  .frame.span-2 { grid-column: auto; }
  .case-row { grid-template-columns: 1fr; gap: 10px; }
}

/* Per-frame ratio overrides */
.frame.ratio-4-3 { aspect-ratio: 4 / 3; }


/* Trend board (wide) + product photo (narrow), same height */
.split-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--gap);
  margin-bottom: 40px;
}
.split-row .frame:first-child { aspect-ratio: 2000 / 1313; }

/* Palette as stacked color rows beside the trend board */
.swatch-stack { display: grid; grid-auto-rows: 1fr; gap: 8px; }
.swatch {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  gap: 2px;
  padding: 10px 12px;
  font-size: 11px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: rgba(255,255,255,.9);
}
.swatch.on-light { color: rgba(0,0,0,.75); }
.swatch span { opacity: 0; transition: opacity .2s; }
.swatch:hover span { opacity: 1; }
@media (hover: none) { .swatch span { opacity: 1; } }
.split-row figcaption {
  grid-column: 1 / -1;
  font-size: 13px;
  color: #555;
}
@media (max-width: 760px) {
  .split-row { grid-template-columns: 1fr; }
  .swatch-stack { min-height: 260px; }
  .brand-grid { grid-template-columns: 1fr; }
  .brand-mockups .frame.hangtag { aspect-ratio: 6 / 5; }
}

/* Campaign: full-width motion / logo · motion · slogan / full-width mockup */
.campaign { display: grid; gap: var(--gap); }
.campaign .frame.wide { aspect-ratio: 16 / 9; }
.campaign .frame.billboard { aspect-ratio: 3 / 2; }
.campaign-row { display: grid; grid-template-columns: 1fr 2fr 1fr; gap: var(--gap); }
.campaign-row .frame:not(.wide) { aspect-ratio: auto; }
.frame.slogan {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: #EFEEEB url(../images/simone/paper.jpg) center / cover;
  font-family: "Hedvig Letters Serif", Georgia, serif;
  font-size: clamp(14px, 1.5vw, 22px);
  line-height: 1.35;
  text-align: center;
  color: #1A1A1A;
}
@media (max-width: 760px) {
  .campaign-row { grid-template-columns: 1fr 1fr; }
  .campaign-row .frame.wide { grid-column: 1 / -1; order: -1; }
  .campaign-row .frame:not(.wide) { aspect-ratio: 1 / 1; }
}

/* Process: video (35%) | big photo + 2x2 photos (65%) */
.process { display: grid; grid-template-columns: 35fr 65fr; gap: var(--gap); }
.process > .frame { aspect-ratio: 1080 / 1280; }
.process-photos {
  display: grid;
  grid-template-columns: 2.14fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: var(--gap);
}
.process-photos .frame { aspect-ratio: auto; }
.process-photos .frame.big { grid-row: span 2; }
@media (max-width: 760px) {
  .process { grid-template-columns: 1fr; }
  .process-photos { grid-template-columns: 1fr 1fr; grid-template-rows: none; }
  .process-photos .frame { aspect-ratio: 3 / 4; }
  .process-photos .frame.big { grid-row: auto; grid-column: 1 / -1; }
}

/* Six value tiles with centered captions */
.values { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--gap); }
.values figure { margin: 0; }
.values .frame { aspect-ratio: 3 / 5; }
.values .frame.natural img { object-position: 32% 40%; }
.values .frame::after { content: none; }
.values figcaption { margin-top: 8px; text-align: center; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }

/* Even tile grids (explorations, iterations) */
.tile-grid { display: grid; gap: var(--gap); margin-top: var(--gap); }
.tile-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.tile-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.tile-grid .frame { aspect-ratio: 1 / 1; }
@media (max-width: 760px) {
  .values { grid-template-columns: repeat(3, 1fr); }
  .tile-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
}
.frame.logo-final { background: #DFDFDF; }
.frame.logo-final img { object-fit: contain; }

/* Hoover mockups: tall stationery (left) | three stacked mockups (right) */
.mockup-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--gap); }
.mockup-grid .frame.stationery { aspect-ratio: auto; background: #F4F4F4; }
.mockup-grid .frame.stationery img { position: absolute; inset: 0; object-position: 50% 50%; }
.mockup-stack { display: grid; gap: var(--gap); }
.mockup-stack .frame { aspect-ratio: 1544 / 1019; }
.frame.iterations { aspect-ratio: 1864 / 1216; }
@media (max-width: 760px) {
  .mockup-grid { grid-template-columns: 1fr; }
  .mockup-grid .frame.stationery { aspect-ratio: 9 / 16; }
}

.caption { margin-top: 10px; font-size: 13px; color: #555; }

/* Protected project */
.locked {
  padding: 120px 0;
  border-top: 1px solid var(--ink);
  margin-top: 14px;
  text-align: center;
}
.locked .locked-title { font-size: 22px; font-weight: 500; margin-bottom: 8px; color: var(--ink); }
.locked p { font-size: 14px; color: var(--muted); }
.locked a { display: inline-block; margin-top: 18px; font-size: 13px; text-decoration: underline; text-underline-offset: 3px; }
.frame.locked-card { display: flex; align-items: center; justify-content: center; }
.frame.locked-card span { font-size: 14px; color: var(--muted); }

/* Lightbox: click a photo to see it larger */
.gallery .frame img { cursor: zoom-in; }
.lightbox {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: 40px;
  background: rgba(15, 15, 15, .88);
  opacity: 0; pointer-events: none;
  transition: opacity .2s;
  cursor: zoom-out;
}
.lightbox.is-open { opacity: 1; pointer-events: auto; }
.lightbox img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.lightbox-close {
  position: absolute; top: 16px; right: 20px;
  border: 0; background: none; color: #fff;
  font-size: 28px; line-height: 1; cursor: pointer;
}

/* Hoover mockups: stationery pair on top, three mockups below */
.stationery-row { display: grid; grid-template-columns: 790fr 390fr; gap: var(--gap); }
.stationery-row .frame:first-child { aspect-ratio: 790 / 600; background: #F4F4F4; }
.stationery-row .frame:last-child { aspect-ratio: 520 / 800; background: #F4F4F4; }
.mockup-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); margin-top: var(--gap); }
.mockup-row .frame { aspect-ratio: 1544 / 1019; }
@media (max-width: 760px) {
  .stationery-row, .mockup-row { grid-template-columns: 1fr; }
}


/* 4:3 hero video centered between two side strips (24px = 1/4in gaps) */
.hero-split {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 110fr 801fr 110fr;
  gap: 24px;
}
.hero-split .frame { aspect-ratio: 4 / 3; }
.hero-split .strip { background-size: cover; background-position: center; }

/* Playground: one justified row, every piece uncropped */
.playground { display: grid; gap: var(--gap); }
.pg-row { display: flex; gap: var(--gap); }
.pg-row .frame { flex-basis: 0; min-width: 0; }
@media (max-width: 760px) {
  .hero-split { grid-template-columns: 1fr; }
  .hero-split .strip { display: none; }
}

/* About page */
.about-hero {
  display: grid;
  grid-template-columns: 1.815fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: var(--gap);
}
.about-hero .frame { aspect-ratio: 3 / 4; }
.about-hero .frame.big { grid-row: span 2; aspect-ratio: auto; }
.about-hero .frame.big img { position: absolute; inset: 0; }
.value-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.value-card { padding-top: 12px; border-top: 1px solid var(--rule); font-size: 13px; line-height: 1.5; }
.value-card .value-name { margin-bottom: 6px; font-weight: 500; }
.interest-list { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.interest-list li { padding: 6px 12px; border: 1px solid var(--rule); border-radius: 999px; font-size: 13px; }
.club-list { list-style: none; columns: 2; column-gap: var(--gutter); }
.club-list li { break-inside: avoid; border-top: 1px solid var(--rule); }
.club-list a { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; font-size: 13px; }
.club-list a:hover { opacity: .55; }
.club-list .role { color: var(--muted); text-align: right; }
.fact-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--gutter); }
.fact-list li { display: flex; gap: 10px; padding: 12px 0; border-top: 1px solid var(--rule); font-size: 13px; line-height: 1.5; }
.about-cta {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  margin-top: 72px; padding: 18px 0;
  border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink);
  font-size: 14px;
}
.about-cta button {
  font: inherit; font-size: 13px; background: none; border: 0; padding: 0; cursor: pointer;
  text-decoration: underline; text-underline-offset: 3px; white-space: nowrap;
}
@media (max-width: 760px) {
  .about-hero { grid-template-columns: 1fr 1fr; grid-template-rows: none; }
  .about-hero .frame.big { grid-column: 1 / -1; grid-row: auto; aspect-ratio: 2 / 3; }
  .value-cards { grid-template-columns: 1fr 1fr; }
  .club-list { columns: 1; }
  .fact-list { grid-template-columns: 1fr; }
  .about-cta { flex-direction: column; align-items: flex-start; }
}

/* A3C */
.frame.anatomy { aspect-ratio: 2400 / 1240; background: #F6F4F1; }
.tile-grid.flyers .frame { aspect-ratio: 1545 / 2000; }
.program-matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gap); }
.program { display: grid; gap: 10px; }
.program .frame { aspect-ratio: 1545 / 2000; }
.program-name { padding-bottom: 6px; border-bottom: 1px solid var(--ink); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
@media (max-width: 760px) { .program-matrix { grid-template-columns: 1fr; } }
.frame.program-styles { aspect-ratio: 2400 / 1688; background: #F6F4F1; }

/* A3C: twelve program columns */
.program-strip { display: grid; grid-template-columns: repeat(12, 1fr); gap: 8px; }
.program-strip figure { margin: 0; }
.program-strip .frame { aspect-ratio: 1 / 3; }
.program-strip figcaption { margin-top: 8px; font-size: 11px; font-weight: 600; line-height: 1.3; text-align: center; }
@media (max-width: 1100px) { .program-strip { grid-template-columns: repeat(6, 1fr); row-gap: 16px; } }
@media (max-width: 760px) { .program-strip { grid-template-columns: repeat(4, 1fr); } }

.intro-links { list-style: none; font-size: 13px; line-height: 1.8; }
.intro-links a, .intro-links button {
  font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer;
  text-decoration: underline; text-underline-offset: 3px;
}
.intro-links a:hover, .intro-links button:hover { opacity: .55; }