:root {
  --lavender-bg: #dfdcff;
  --lavender-accent: #a69eff;
  --ink: #2d2d2d;
  --glass: rgba(223, 220, 255, 0.45);
  --glass-border: rgba(166, 158, 255, 0.35);
  --radius: 1.25rem;
  --header-h: 4.5rem;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font-label: "Syne", sans-serif;
  --font-display: "Fraunces", "Noto Sans SC", serif;
  --font-body: "Noto Sans SC", sans-serif;
  --tool-card-bg: rgba(255, 255, 255, 0.32);
  --tool-card-bg-hover: rgba(255, 255, 255, 0.48);
  --tool-card-border: rgba(255, 255, 255, 0.15);
  --tool-card-radius: 20px;
  --tool-card-shadow: 0 8px 32px rgba(45, 45, 45, 0.06);
  --tool-card-shadow-hover: 0 20px 48px rgba(45, 45, 45, 0.12);
  --tool-logo-glow: rgba(166, 158, 255, 0.55);
  --tool-transition: 300ms var(--ease-out);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --slider-glow: #6366f1;
  --depth-glow: rgba(166, 158, 255, 0.22);
  --glass-highlight: rgba(255, 255, 255, 0.55);
  --bg-blur-veil: 52px;
  --bg-blur-fluid: 26px;
}

*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

/* ── Typography System ── */

/* Tier 1 · 数字与特殊大标签 */
.case-number,
.case-page__index,
.section-tag,
.eyebrow,
.case-page__chapter,
.lanyard-card__tag,
.case-tags .tag,
.case-tags li,
.case-detail .case-tags li,
.contact-label {
  font-family: var(--font-label);
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* Tier 2 · 核心艺术大标题 */
.hero-name,
.hero__title,
.case-title,
.case-page__title,
.section-title,
.case-detail h2,
.logo,
.lanyard-card__name {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.08em;
}

/* Tier 3 · Slogan 与小标题 */
.hero-slogan,
.hero__slogan,
.case-subtitle,
.case-detail .case-meta,
.section-desc,
h4,
.case-detail h4 {
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* Tier 4 · 全站正文段落 */
body,
p,
.case-summary,
.hero-intro,
.hero__text,
.case-detail p,
.case-detail li,
.case-detail .case-body,
.site-footer p {
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.85;
  color: #2d2d2d;
}

body {
  margin: 0;
  background:
    radial-gradient(ellipse 120% 80% at 50% -20%, var(--depth-glow), transparent 55%),
    radial-gradient(ellipse 70% 50% at 100% 50%, rgba(166, 158, 255, 0.12), transparent 50%),
    radial-gradient(ellipse 60% 45% at 0% 80%, rgba(223, 220, 255, 0.85), transparent 55%),
    var(--lavender-bg);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -12%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 18%, rgba(166, 158, 255, 0.42), transparent 38%),
    radial-gradient(circle at 88% 22%, rgba(99, 102, 241, 0.28), transparent 40%),
    radial-gradient(circle at 72% 88%, rgba(196, 181, 253, 0.35), transparent 42%),
    radial-gradient(circle at 20% 78%, rgba(255, 255, 255, 0.45), transparent 36%);
  filter: blur(72px);
  opacity: 0.72;
}

body.has-ferrofluid {
  background: var(--lavender-bg);
}

body.has-ferrofluid::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  backdrop-filter: blur(var(--bg-blur-veil)) saturate(1.12);
  -webkit-backdrop-filter: blur(var(--bg-blur-veil)) saturate(1.12);
  background: rgba(223, 220, 255, 0.16);
}

.ferrofluid-container {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
  filter: blur(var(--bg-blur-fluid)) saturate(1.1);
  transform: scale(1.08);
  transform-origin: center;
}

body.has-ferrofluid #mainView {
  position: relative;
  z-index: 1;
}

body.lanyard-active {
  overflow: hidden;
}

body.lanyard-active #header,
body.lanyard-active #mainView,
body.lanyard-active .case-view,
body.lanyard-active .site-footer {
  visibility: hidden;
  pointer-events: none;
}

.lanyard-gate {
  position: fixed;
  inset: 0;
  z-index: 12000;
  background:
    radial-gradient(ellipse 90% 60% at 50% 0%, rgba(166, 158, 255, 0.18), transparent 60%),
    radial-gradient(ellipse 70% 50% at 100% 80%, rgba(99, 102, 241, 0.08), transparent 55%),
    rgba(223, 220, 255, 0.72);
  backdrop-filter: blur(20px) saturate(1.08);
  -webkit-backdrop-filter: blur(20px) saturate(1.08);
  overflow: hidden;
}

.lanyard-gate__rope {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.lanyard-gate__rig {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2;
  transform-origin: 50% 0;
  will-change: transform;
}

.lanyard-gate__clip {
  position: absolute;
  top: -10px;
  left: 50%;
  width: 34px;
  height: 18px;
  margin-left: -17px;
  border-radius: 4px;
  background: linear-gradient(180deg, #c4b8ff 0%, #8b7cf7 100%);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

.lanyard-gate__clip::before {
  content: "";
  position: absolute;
  inset: 4px 8px auto;
  height: 4px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.45);
}

.lanyard-card {
  position: relative;
  width: clamp(168px, 34vw, 220px);
  padding: 0;
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  background:
    linear-gradient(165deg, rgba(255, 255, 255, 0.92) 0%, rgba(235, 232, 255, 0.88) 100%);
  box-shadow:
    0 24px 48px rgba(99, 102, 241, 0.18),
    0 8px 20px rgba(14, 16, 15, 0.08),
    inset 0 1px 0 var(--glass-highlight);
  backdrop-filter: blur(8px);
  cursor: grab;
  touch-action: manipulation;
  -webkit-user-select: none;
  user-select: none;
  text-align: left;
  color: var(--ink);
  transition: box-shadow 0.25s var(--ease-out);
}

.lanyard-card:hover {
  box-shadow:
    0 28px 56px rgba(99, 102, 241, 0.24),
    0 10px 24px rgba(14, 16, 15, 0.1),
    inset 0 1px 0 var(--glass-highlight);
}

.lanyard-card.is-dragging {
  cursor: grabbing;
}

.lanyard-card__header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 0.85rem 0.55rem;
  border-bottom: 1px solid rgba(166, 158, 255, 0.25);
}

.lanyard-card__brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--lavender-accent);
}

.lanyard-card__photo {
  margin: 0.7rem 0.85rem 0.65rem;
  aspect-ratio: 5/6;
  border-radius: 0.65rem;
  overflow: hidden;
  border: 1px solid rgba(166, 158, 255, 0.3);
}

.lanyard-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-drag: none;
}

.lanyard-card__footer {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0 0.85rem 0.9rem;
}

.lanyard-card__name {
  font-size: 1.05rem;
}

.lanyard-card__tag {
  font-size: 0.62rem;
  color: var(--slider-glow);
  opacity: 0.85;
}

.lanyard-gate__hint {
  position: fixed;
  left: 50%;
  bottom: clamp(1.5rem, 6vh, 3rem);
  transform: translateX(-50%);
  z-index: 3;
  margin: 0;
  font-family: var(--font-label);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.55;
  user-select: none;
  pointer-events: none;
}

@media (max-width: 767px) {
  .lanyard-gate {
    padding-bottom: clamp(1.25rem, 6vh, 2.5rem);
  }

  .lanyard-gate__hint {
    font-size: 0.75rem;
    letter-spacing: 0.08em;
  }
}
body.case-open { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; border: none; background: none; -webkit-tap-highlight-color: transparent; }

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9990;
  opacity: 0.28;
  background-image: url(https://assets.codepen.io/16327/noise-e82662fe.png);
  background-repeat: repeat;
  mix-blend-mode: soft-light;
  filter: blur(0.6px);
}

.page-transition {
  position: fixed;
  inset: 0;
  background: var(--lavender-accent);
  z-index: 9998;
  transform: scaleY(0);
  transform-origin: top;
  pointer-events: none;
}
.page-transition--out { transform-origin: bottom; background: var(--ink); }

.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: calc(var(--header-h) + var(--safe-top));
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--safe-top) max(clamp(1.25rem, 4vw, 3rem), var(--safe-right)) 0 max(clamp(1.25rem, 4vw, 3rem), var(--safe-left));
  z-index: 100;
  transition: background 0.4s var(--ease-out), backdrop-filter 0.4s;
}
.header.scrolled {
  background: rgba(223, 220, 255, 0.75);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
}
.logo { font-size: 1.125rem; }

.nav { display: flex; gap: 2rem; align-items: center; }
.nav-link {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  opacity: 0.85;
  transition: opacity 0.25s;
}
.nav-link:hover, .nav-link.active { opacity: 1; }

.nav-toggle {
  display: none;
  width: 2.5rem; height: 2.5rem;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--ink);
  transition: transform 0.35s var(--ease-out), opacity 0.25s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.section {
  padding: calc(var(--header-h) + var(--safe-top) + 3rem) max(clamp(1.25rem, 4vw, 3rem), var(--safe-right)) calc(4rem + var(--safe-bottom)) max(clamp(1.25rem, 4vw, 3rem), var(--safe-left));
  max-width: 72rem;
  margin: 0 auto;
}
.section-head { margin-bottom: 2.5rem; max-width: 36rem; }
.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin: 0 0 0.75rem;
}
.section-desc { margin: 0; opacity: 0.75; font-style: normal; }
.split-text .line { overflow: hidden; display: block; }
.split-text .line-inner { display: inline-block; will-change: transform; }

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  min-height: calc(100vh - var(--header-h) - 6rem);
}
.avatar-wrap {
  aspect-ratio: 4/5;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: 0 24px 48px rgba(14, 16, 15, 0.08);
}
.avatar-img { width: 100%; height: 100%; object-fit: cover; }
.eyebrow { font-size: 0.75rem; opacity: 0.65; margin: 0 0 0.5rem; }
.title-sub { font-size: 0.42em; font-weight: 300; letter-spacing: 0.06em; opacity: 0.55; vertical-align: middle; margin-left: 0.35em; }
.hero__title { font-size: clamp(2.5rem, 6vw, 3.75rem); margin: 0 0 1rem; line-height: 1.12; }
.hero__slogan { font-size: clamp(1.125rem, 2.5vw, 1.375rem); margin: 0 0 1.25rem; line-height: 1.65; }
.hero__text { margin: 0 0 2rem; max-width: 32rem; opacity: 0.88; }

.btn-glass {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s, background 0.3s;
}
.btn-glass:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(166, 158, 255, 0.35);
  background: rgba(223, 220, 255, 0.65);
}


.portfolio {
  padding: 0;
  max-width: none;
}

.portfolio-pin-wrapper {
  position: relative;
  height: 400vh;
}

.portfolio-pin-stage {
  height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 1.5rem) 0 3rem;
  position: relative;
}

.portfolio-pin-stage:not(.is-portfolio-visible) .portfolio-mask-stack,
.portfolio-pin-stage:not(.is-portfolio-visible) .portfolio-text-panels,
.portfolio-pin-stage:not(.is-portfolio-visible) .case-page__chapter {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none;
}

.portfolio-pin-stage.is-hero-overlap {
  visibility: hidden;
  pointer-events: none;
}

.portfolio-pin-stage.is-portfolio-visible .portfolio-mask-stack,
.portfolio-pin-stage.is-portfolio-visible .portfolio-text-panels,
.portfolio-pin-stage.is-portfolio-visible .case-page__chapter {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.2s var(--ease-out), visibility 0.2s var(--ease-out);
}
.portfolio-pin-stage::before {
  content: "";
  position: absolute;
  inset: 10% 5% 15%;
  background: radial-gradient(ellipse 55% 45% at 65% 50%, var(--depth-glow), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.portfolio-pin-stage > * {
  position: relative;
  z-index: 1;
}

.case-page__chapter {
  position: absolute;
  top: calc(var(--header-h) + 1.5rem);
  left: clamp(1.25rem, 4vw, 3rem);
  margin: 0;
  font-size: 0.72rem;
  opacity: 0.48;
}

.portfolio-pin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 4vw, 4rem);
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  align-items: center;
}

.portfolio-mask-stack {
  position: relative;
  width: 100%;
  height: calc(100vh - var(--header-h) - 4rem);
  align-self: center;
  overflow: visible;
}

.portfolio-svg-layer {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  will-change: clip-path;
}

.portfolio-svg-layer.is-active {
  opacity: 1;
}

.portfolio-pin-stage:not(.is-portfolio-visible) .portfolio-svg-layer,
.portfolio-pin-stage.is-hero-overlap .portfolio-svg-layer {
  opacity: 0 !important;
  visibility: hidden !important;
}

.draw-svg-element {
  width: min(82%, 420px);
  height: auto;
  overflow: visible;
}

.draw-svg-element path {
  fill: none;
  stroke: var(--lavender-accent);
  stroke-width: 2.75;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.portfolio-text-panels {
  position: relative;
  min-height: calc(100vh - var(--header-h) - 4rem);
  text-align: right;
  align-self: center;
}

.case-text-panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  width: 100%;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s var(--ease-out);
}

.case-page__content {
  padding: clamp(1.75rem, 3vw, 2.25rem) clamp(1.5rem, 2.5vw, 2rem);
  background: rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: calc(var(--radius) + 0.15rem);
  border: 1px solid rgba(255, 255, 255, 0.45);
  box-shadow: 0 20px 50px rgba(14, 16, 15, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.65);
  position: relative;
  margin-left: auto;
  width: 100%;
  max-width: 28rem;
}
.case-page__content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--lavender-accent), transparent);
  opacity: 0.55;
  pointer-events: none;
}

.case-text-panel.is-active {
  opacity: 1;
  pointer-events: auto;
}

.case-page__index {
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  opacity: 0.5;
  margin: 0 0 1rem;
}

.case-page__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 1rem;
  line-height: 1.25;
}
.blur-text { display: inline-block; }
.case-page__title.blur-text { display: block; }
.case-tags li.blur-text { display: inline-block; }
.blur-text__segment {
  display: inline-block;
  will-change: transform, filter, opacity;
}


.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  justify-content: flex-end;
  list-style: none;
}

.case-tags li {
  font-size: 0.75rem;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.32);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.42);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  list-style: none;
}

.case-link {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
}


.section.toolkit { overflow: visible; }

.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.35rem);
  width: 100%;
}

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem 1.35rem 1.65rem;
  border-radius: var(--tool-card-radius);
  background: var(--tool-card-bg);
  border: 1px solid var(--tool-card-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow:
    var(--tool-card-shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.55),
    inset 0 -1px 0 rgba(255, 255, 255, 0.12);
  cursor: default;
  outline: none;
  transition:
    transform var(--tool-transition),
    background var(--tool-transition),
    box-shadow var(--tool-transition);
}

.tool-card__glow {
  position: absolute;
  inset: 12% 18% auto;
  height: 42%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.35) 0%, transparent 72%);
  pointer-events: none;
  opacity: 0.65;
}

.tool-card__logo-wrap {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  margin-bottom: 1.15rem;
}

.tool-card__logo {
  width: 70px;
  height: 70px;
  color: var(--ink);
  opacity: 0.82;
  transition:
    transform var(--tool-transition),
    opacity var(--tool-transition),
    filter var(--tool-transition);
}

.tool-card__name {
  position: relative;
  z-index: 1;
  margin: 0 0 0.45rem;
  font-family: var(--font-label);
  font-size: 0.9375rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}

.tool-card__tagline {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 300;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--ink) 72%, transparent);
}

.tool-card__details {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateY(10px);
  transition:
    max-height var(--tool-transition),
    opacity var(--tool-transition),
    transform var(--tool-transition),
    margin-top var(--tool-transition);
}

.tool-card__details li {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 300;
  line-height: 1.85;
  letter-spacing: 0.03em;
  color: color-mix(in srgb, var(--ink) 78%, transparent);
}

.tool-card__details li::before {
  content: "✔";
  font-size: 0.7rem;
  opacity: 0.55;
  flex-shrink: 0;
}

.tool-card:focus-visible {
  outline: 2px solid rgba(166, 158, 255, 0.45);
  outline-offset: 3px;
}

.tool-card:hover,
.tool-card:focus-visible,
.tool-card.is-expanded {
  transform: translateY(-8px);
  background: var(--tool-card-bg-hover);
  box-shadow:
    var(--tool-card-shadow-hover),
    0 0 0 1px rgba(255, 255, 255, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.68),
    inset 0 -1px 0 rgba(255, 255, 255, 0.15);
}

.tool-card:hover .tool-card__logo,
.tool-card:focus-visible .tool-card__logo,
.tool-card.is-expanded .tool-card__logo {
  transform: scale(1.08);
  opacity: 1;
  filter: drop-shadow(0 0 14px var(--tool-logo-glow));
}

.tool-card:hover .tool-card__details,
.tool-card:focus-visible .tool-card__details,
.tool-card.is-expanded .tool-card__details {
  max-height: 8rem;
  opacity: 1;
  transform: translateY(0);
  margin-top: 1.1rem;
}

@media (max-width: 900px) {
  .tools-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 540px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }

  .tool-card {
    padding: 1.75rem 1.25rem 1.5rem;
  }
}


.contact-grid {
  display: flex;
  justify-content: space-between;
  gap: 1.25rem;
  width: 100%;
}
.contact-card {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 9rem;
  padding: 1.25rem 1.35rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid var(--glass-border);
}
.contact-label { font-size: 0.8125rem; opacity: 0.65; }
.contact-value { font-weight: 600; word-break: break-all; overflow-wrap: anywhere; letter-spacing: 0.02em; }
.copy-btn {
  align-self: flex-start;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  transition: background 0.25s;
}
.copy-btn:hover { background: rgba(166, 158, 255, 0.35); }

.site-footer {
  text-align: center;
  padding: 2rem max(clamp(1.25rem, 4vw, 3rem), var(--safe-right)) calc(4rem + var(--safe-bottom)) max(clamp(1.25rem, 4vw, 3rem), var(--safe-left));
  font-size: 0.875rem;
  opacity: 0.65;
}
.site-footer p { margin: 0; }

.case-view {
  position: fixed;
  inset: 0;
  z-index: 200;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(166, 158, 255, 0.14), transparent 55%),
    rgba(223, 220, 255, 0.92);
  backdrop-filter: blur(24px) saturate(1.08);
  -webkit-backdrop-filter: blur(24px) saturate(1.08);
  padding: calc(var(--header-h) + var(--safe-top) + 1rem) max(clamp(1.25rem, 4vw, 3rem), var(--safe-right)) calc(3rem + var(--safe-bottom)) max(clamp(1.25rem, 4vw, 3rem), var(--safe-left));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8%);
}
.case-view.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
}
.case-back {
  margin-bottom: 1.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.case-detail {
  text-align: left;
}

.case-detail__main {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  min-width: 0;
  min-height: calc(100vh - var(--header-h) - 7rem);
  text-align: left;
}

.case-detail__intro {
  width: 100%;
  padding-top: clamp(0.75rem, 2vh, 1.25rem);
}

.case-detail h2 {
  font-size: clamp(2.25rem, 5.5vw, 3.25rem);
  line-height: 1.12;
  margin: 0 0 0.25rem;
  text-align: left;
}

.case-detail .case-meta {
  font-size: 1.0625rem;
  font-style: normal;
  line-height: 1.65;
  opacity: 0.78;
  margin: 0;
  text-align: left;
}

.case-detail .case-tags {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  justify-content: flex-start;
}

.case-detail .case-tags li {
  font-size: 0.75rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(166, 158, 255, 0.25);
  border: 1px solid var(--glass-border);
  list-style: none;
}

.case-detail .case-body {
  width: 100%;
  margin-top: auto;
  padding: 0 clamp(0.65rem, 1.8vw, 1rem) clamp(0.85rem, 2vh, 1.35rem);
  text-align: left;
}

.case-detail h4 {
  margin: 0 0 0.65rem;
  font-size: 1rem;
  text-align: left;
}

.case-detail .case-body h4:not(:first-of-type) {
  margin-top: 1.35rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--lavender-accent);
}

.case-detail p,
.case-detail li {
  font-size: 1rem;
  opacity: 0.88;
  text-align: left;
}

.case-detail .case-body ul {
  padding-left: 1.25rem;
  list-style: disc;
  margin: 0;
}

.case-detail__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.72fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}
.case-detail__gallery {
  min-width: 0;
  max-width: 100%;
  position: sticky;
  top: calc(var(--header-h) + 1rem);
}
.case-detail__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
}
.case-detail__grid--34 .case-detail__photo {
  aspect-ratio: auto;
  max-height: calc((100vh - var(--header-h) - 9rem) / 2);
  border-radius: calc(var(--radius) - 0.35rem);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.35);
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.case-detail__grid--34 .case-detail__photo--offset,
.case-detail__grid--34 .case-detail__photo:nth-child(even) {
  margin-top: 0;
}
.case-detail__photo img {
  width: 100%;
  height: auto;
  max-height: calc((100vh - var(--header-h) - 9rem) / 2);
  object-fit: contain;
  display: block;
}


.draw-hover { position: relative; display: inline-block; }
.draw-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5000;
}
.draw-layer svg { position: absolute; overflow: visible; pointer-events: none; }
.draw-layer path {
  fill: none;
  stroke: var(--lavender-accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.toast {
  position: fixed;
  bottom: calc(2rem + var(--safe-bottom));
  left: 50%;
  max-width: calc(100vw - 2rem - var(--safe-left) - var(--safe-right));
  transform: translateX(-50%) translateY(120%);
  background: var(--ink);
  color: var(--lavender-bg);
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-size: 0.875rem;
  z-index: 10000;
  transition: transform 0.4s var(--ease-out);
}
.toast.show { transform: translateX(-50%) translateY(0); }

@media (max-width: 900px) {
  .section {
    padding-top: calc(var(--header-h) + var(--safe-top) + 1.75rem);
    padding-bottom: calc(2.5rem + var(--safe-bottom));
  }

  .section.hero {
    padding-top: calc(var(--header-h) + var(--safe-top) + 1.25rem);
    padding-bottom: 1.25rem;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    min-height: auto;
    gap: 1.25rem;
  }

  .hero__content { order: 1; }
  .hero__media { order: 2; }

  .avatar-wrap {
    max-width: min(68vw, 260px);
    margin: 0 auto;
  }

  .hero__text { margin-bottom: 1.25rem; }

  .portfolio-pin-wrapper {
    height: auto;
  }

  .portfolio-pin-stage {
    height: auto;
    flex-direction: column;
    align-items: stretch;
    padding: 1.25rem 0 2rem;
  }

  .case-page__chapter {
    position: static;
    padding: 0 max(clamp(1.25rem, 4vw, 3rem), var(--safe-left)) 0 max(clamp(1.25rem, 4vw, 3rem), var(--safe-right));
    margin-bottom: 0.35rem;
  }

  .portfolio-pin-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .portfolio-text-panels {
    order: 1;
    position: relative;
    min-height: auto;
    text-align: left;
  }

  .portfolio-mask-stack {
    order: 2;
    position: relative;
    height: clamp(100px, 15vh, 140px);
    min-height: 0;
    margin-top: 1.25rem;
    display: block;
    overflow: hidden;
  }

  .portfolio-svg-layer {
    position: absolute;
    inset: 0;
    min-height: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .portfolio-svg-layer.is-active {
    opacity: 1;
    visibility: visible;
  }

  .draw-svg-element {
    width: min(72%, 180px);
  }

  .case-text-panel {
    position: relative;
    inset: auto;
    opacity: 1 !important;
    pointer-events: auto;
    align-items: flex-start;
    margin-bottom: 1.25rem;
  }

  .case-text-panel:not(:last-child) {
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--glass-border);
  }

  .case-tags { justify-content: flex-start; }
  .case-page__content {
    padding: clamp(1.35rem, 4vw, 1.75rem) clamp(1.15rem, 3.5vw, 1.5rem);
    text-align: left;
    margin-left: 0;
    max-width: none;
  }
  .case-detail__layout { grid-template-columns: 1fr; gap: 2rem; }
  .case-detail__main {
    min-height: auto;
    justify-content: flex-start;
  }
  .case-detail .case-body {
    margin-top: 1.5rem;
    padding-left: 0;
    padding-bottom: 0;
  }
  .case-detail__gallery { position: static; }
  .case-detail__grid--34 .case-detail__photo,
  .case-detail__photo img {
    max-height: 28vh;
  }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    padding: var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);
    background: rgba(223, 220, 255, 0.96);
    backdrop-filter: blur(16px);
    transform: translateX(100%);
    transition: transform 0.45s var(--ease-out);
    z-index: 105;
  }
  .nav.open { transform: translateX(0); }
  .nav-link { font-size: 1.5rem; }
  .contact-grid { flex-direction: column; }
  .contact-card { min-height: auto; }
  .hero__title { font-size: clamp(2rem, 9vw, 2.75rem); }
  .section-head { margin-bottom: 1.5rem; }
  .tool-card { padding: 1.5rem 1.15rem 1.35rem; }
}

@media (max-width: 540px) {
  .section {
    padding-top: calc(var(--header-h) + var(--safe-top) + 1.5rem);
    padding-bottom: calc(2rem + var(--safe-bottom));
  }

  .section.hero {
    padding-bottom: 1rem;
  }

  .portfolio-pin-stage {
    padding: 0.75rem 0 1.5rem;
  }

  .portfolio-mask-stack {
    height: clamp(88px, 13vh, 120px);
    margin-top: 1rem;
  }

  .case-text-panel {
    margin-bottom: 1rem;
  }

  .case-text-panel:not(:last-child) {
    padding-bottom: 1rem;
  }

  .case-detail__grid {
    grid-template-columns: 1fr;
  }

  .case-detail h2 {
    font-size: clamp(1.75rem, 8vw, 2.25rem);
  }

  .lanyard-gate__hint {
    bottom: calc(clamp(1.5rem, 6vh, 3rem) + var(--safe-bottom));
    max-width: calc(100vw - 2rem);
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .tool-card,
  .tool-card__logo,
  .tool-card__details,
  .nav,
  .nav-toggle span,
  .toast {
    transition-duration: 0.01ms !important;
  }

  .tool-card:hover,
  .tool-card.is-expanded {
    transform: none;
  }
}