/* =====================================================================
   Abdul Qureshi — Portfolio Design System
   Quiet studio palette, material surfaces, and diagram-first storytelling.
   Static HTML + CSS + vanilla JS.
   ===================================================================== */

/* ---------- Tokens (override + extend style-modern.css) ---------- */
:root {
  --ds-panel-1: #4f5d75; /* slate */
  --ds-panel-2: #6f7f5f; /* sage */
  --ds-panel-3: #9a5f4a; /* clay */
  --ds-panel-4: #7a6a93; /* muted plum */
  --ds-panel-5: #8a7356; /* walnut */
  --ds-panel-6: #b4764f; /* copper */

  --accent: #4f5d75;
  --accent-soft: rgba(79, 93, 117, 0.12);
  --accent-ink: #334155;

  --ds-glass: rgba(250, 249, 246, 0.78);
  --ds-glass-border: rgba(255, 255, 255, 0.85);
  --ds-shadow-glow: 0 0 0 1px rgba(79, 93, 117, 0.08), 0 18px 42px -24px rgba(31, 41, 55, 0.28);
  --ds-shadow-card: 0 1px 2px rgba(15, 15, 16, 0.035), 0 12px 34px -20px rgba(31, 41, 55, 0.16);
  --ds-radius-xl: 24px;
  --ds-ease-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
  --ds-ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  --ds-gradient-btn: linear-gradient(135deg, #39465a 0%, #4f5d75 100%);
  --ds-gradient-mesh:
    radial-gradient(ellipse 80% 50% at 15% -5%, rgba(79, 93, 117, 0.07), transparent 58%),
    radial-gradient(ellipse 60% 45% at 95% 8%, rgba(111, 127, 95, 0.06), transparent 52%),
    radial-gradient(ellipse 45% 35% at 50% 105%, rgba(154, 95, 74, 0.05), transparent 56%);
}

/* ---------- Global theme shell ---------- */
body.ds-theme {
  background-color: #f4f2ec;
  background-image: var(--ds-gradient-mesh);
  background-attachment: fixed;
}

body.ds-theme ::selection {
  background: var(--ds-panel-1);
  color: #fff;
}

/* Cursor spotlight (Skiper-inspired) */
.ds-spotlight {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.4s ease;
  background: radial-gradient(
    600px circle at var(--spot-x, 50%) var(--spot-y, 30%),
    rgba(79, 93, 117, 0.055),
    transparent 42%
  );
}
body.ds-theme.ds-spotlight-on .ds-spotlight { opacity: 1; }
body.ds-theme main { position: relative; z-index: 1; }

body.ds-theme [data-color-panels] {
  display: block;
  width: 100%;
  height: 100%;
}

/* ---------- Header (glass) ---------- */
body.ds-theme .site-header {
  background: var(--ds-glass);
  border-bottom-color: rgba(230, 230, 232, 0.7);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset;
}

body.ds-theme .nav-link[aria-current="page"] {
  color: var(--accent);
}

.ds-command-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  height: 2rem;
  padding: 0 0.65rem;
  border: 1px solid rgba(230, 230, 232, 0.9);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.65);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s var(--ds-ease-spring);
}

.ds-command-trigger:hover {
  color: var(--ink);
  border-color: rgba(79, 93, 117, 0.34);
  transform: translateY(-1px);
}

.ds-command-trigger kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  padding: 0 0.3rem;
  border-radius: 6px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--ink-soft);
  font-size: 0.66rem;
  font-family: var(--font-body);
  box-shadow: 0 1px 0 rgba(15, 15, 16, 0.04);
}

.ds-command-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: start center;
  padding: clamp(4rem, 12vh, 7rem) 1rem 1rem;
  background: rgba(15, 15, 16, 0.24);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}

.ds-command-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.ds-command-panel {
  width: min(100%, 560px);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 24px 80px -28px rgba(15, 15, 16, 0.36);
  transform: translateY(-10px) scale(0.98);
  transition: transform 0.2s var(--ds-ease-spring);
}

.ds-command-overlay.is-open .ds-command-panel {
  transform: translateY(0) scale(1);
}

.ds-command-search {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--border);
  background: transparent;
  padding: 1rem 1.1rem;
  color: var(--ink);
  font-size: 0.95rem;
}

.ds-command-search:focus {
  outline: none;
}

.ds-command-list {
  display: grid;
  gap: 0.25rem;
  padding: 0.5rem;
}

.ds-command-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0.85rem;
  border-radius: 12px;
  color: var(--ink);
  text-decoration: none;
  transition: background-color 0.15s ease, transform 0.15s ease;
}

.ds-command-item:hover,
.ds-command-item:focus-visible {
  background: var(--accent-soft);
  transform: translateX(2px);
}

.ds-command-item span {
  color: var(--muted);
  font-size: 0.75rem;
}

/* ---------- Typography accents ---------- */
.ds-gradient-text {
  color: var(--ds-panel-3);
}

.hero-title-line {
  display: block;
}

.hero-title .hero-title-line--accent {
  font-size: clamp(1.35rem, 3.5vw, 2.5rem);
  font-weight: 600;
  line-height: 1.15;
  margin-top: 0.35rem;
  letter-spacing: -0.03em;
}

.hero-title-line--accent {
  color: var(--ds-panel-1);
}

/* ---------- Stack badges (Cult UI) ---------- */
.ds-stack-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.75rem;
}

.ds-stack-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--border);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s var(--ds-ease-spring);
}

.ds-stack-badge:hover {
  border-color: rgba(79, 93, 117, 0.28);
  box-shadow: 0 4px 16px -8px rgba(31, 41, 55, 0.24);
  transform: translateY(-1px);
}

.ds-stack-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--badge-color, var(--ds-panel-1));
  box-shadow: none;
}

/* ---------- Hero Color Panels (Cult UI split layout) ---------- */
.hero-color-panels {
  position: relative;
  overflow: hidden;
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.hero-color-panels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

@media (min-width: 900px) {
  .hero-color-panels__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
    gap: clamp(2rem, 4vw, 4rem);
  }
}

.hero-color-panels__content {
  position: relative;
  z-index: 2;
}

.hero-color-panels__visual {
  position: relative;
  min-height: 320px;
  border-radius: var(--ds-radius-xl);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--ds-shadow-glow);
  background: #fff;
}

@media (min-width: 900px) {
  .hero-color-panels__visual { min-height: 480px; }
}

.color-panels-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero-color-panels__device {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  pointer-events: none;
}

.hero-color-panels__device img {
  max-height: 88%;
  max-width: 72%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 24px 48px rgba(15, 15, 16, 0.18));
  border-radius: var(--radius-lg);
  animation: ds-float 6s var(--ds-ease-out) infinite alternate;
}

@keyframes ds-float {
  from { transform: translateY(0) rotate(-0.5deg); }
  to   { transform: translateY(-10px) rotate(0.5deg); }
}

.hero-color-panels__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, transparent 55%, rgba(255, 255, 255, 0.35) 100%);
  pointer-events: none;
}

/* Mobile color strip below hero copy */
.hero-color-panels__mobile-visual {
  display: block;
  margin-top: 1.5rem;
  height: 140px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--ds-shadow-card);
}

@media (min-width: 900px) {
  .hero-color-panels__mobile-visual { display: none; }
}

@media (max-width: 899px) {
  .hero-color-panels__visual { display: none; }
}

/* ---------- Buttons (Watermelon premium feel) ---------- */
body.ds-theme .btn-primary {
  background: #39465a;
  border: none;
  box-shadow: 0 8px 18px -14px rgba(15, 15, 16, 0.55);
}

body.ds-theme .btn-primary:hover {
  background: #2f3a4d;
  box-shadow: 0 10px 22px -16px rgba(15, 15, 16, 0.58);
}

body.ds-theme .btn-secondary {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

body.ds-theme .btn-accent {
  background: var(--ds-panel-3);
  border: none;
}

body.ds-theme .eyebrow {
  color: var(--accent);
}

/* ---------- Shine cards (Skiper UI) ---------- */
.ds-shine {
  position: relative;
  overflow: hidden;
  --shine-x: 50%;
  --shine-y: 50%;
}

.ds-shine::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.35s ease;
  background: radial-gradient(
    420px circle at var(--shine-x) var(--shine-y),
    rgba(255, 255, 255, 0.55),
    transparent 40%
  );
  pointer-events: none;
  z-index: 1;
}

.ds-shine:hover::before { opacity: 1; }

.ds-shine::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    rgba(79, 93, 117, 0.0) 40%,
    rgba(79, 93, 117, 0.24) 50%,
    rgba(154, 95, 74, 0.0) 60%
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  z-index: 2;
}

.ds-shine:hover::after { opacity: 1; }

body.ds-theme .project-card,
body.ds-theme .card,
body.ds-theme .experiment-card,
body.ds-theme .skill-card {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: rgba(230, 230, 232, 0.9);
  box-shadow: var(--ds-shadow-card);
  border-radius: var(--ds-radius-xl);
}

body.ds-theme .project-card:hover,
body.ds-theme .card-hover:hover,
body.ds-theme .experiment-card:hover,
body.ds-theme .skill-card:hover {
  box-shadow: var(--ds-shadow-glow);
  border-color: rgba(79, 93, 117, 0.18);
  transform: translateY(-4px);
}

body.ds-theme .project-card-type {
  background: var(--accent-soft);
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

body.ds-theme .tag {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(230, 230, 232, 0.9);
}

body.ds-theme .tag-accent {
  background: var(--accent-soft);
  color: var(--accent-ink);
}

/* ---------- Section labels (bento blocks) ---------- */
.ds-section {
  position: relative;
}

.ds-section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  margin-bottom: 1rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: var(--accent-soft);
  border-radius: 999px;
}

/* ---------- Page hero (inner pages) ---------- */
.ds-page-hero {
  position: relative;
  padding-block: clamp(3rem, 8vw, 5rem);
  overflow: hidden;
}

.ds-page-hero__inner {
  position: relative;
  z-index: 2;
}

.ds-page-hero__panels {
  display: none;
}

@media (max-width: 767px) {
  .ds-page-hero__panels {
    display: none;
  }
}

/* ---------- Contact CTA (gradient border) ---------- */
body.ds-theme .contact-cta {
  position: relative;
  background: linear-gradient(145deg, #0f0f12 0%, #1a1a24 50%, #12121a 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--ds-shadow-glow);
  overflow: hidden;
}

body.ds-theme .contact-cta::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--ds-panel-1), var(--ds-panel-2), var(--ds-panel-3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.65;
  pointer-events: none;
}

body.ds-theme .contact-cta .eyebrow {
  color: #c8d0c1;
}

/* ---------- Form inputs ---------- */
body.ds-theme .ds-input {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

body.ds-theme .ds-input:focus {
  outline: none;
  border-color: rgba(79, 93, 117, 0.45);
  box-shadow: 0 0 0 3px rgba(79, 93, 117, 0.1);
}

/* ---------- Marquee strip (Skiper) ---------- */
.ds-marquee {
  overflow: hidden;
  border-block: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding-block: 0.85rem;
}

.ds-marquee__track {
  display: flex;
  gap: 2.5rem;
  width: max-content;
  animation: ds-marquee 28s linear infinite;
}

.ds-marquee__item {
  flex-shrink: 0;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.ds-marquee__item span {
  color: var(--accent);
  margin-right: 0.35rem;
}

@keyframes ds-marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- Bento skill grid ---------- */
body.ds-theme .skill-grid .skill-card:nth-child(1) { --card-accent: var(--ds-panel-1); }
body.ds-theme .skill-grid .skill-card:nth-child(2) { --card-accent: var(--ds-panel-2); }
body.ds-theme .skill-grid .skill-card:nth-child(3) { --card-accent: var(--ds-panel-3); }
body.ds-theme .skill-grid .skill-card:nth-child(4) { --card-accent: var(--ds-panel-4); }
body.ds-theme .skill-grid .skill-card:nth-child(5) { --card-accent: var(--ds-panel-5); }

body.ds-theme .skill-card h3::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--card-accent, var(--ds-panel-1));
  margin-right: 0.5rem;
  vertical-align: middle;
  box-shadow: 0 0 10px var(--card-accent, var(--ds-panel-1));
}

/* ---------- Media fallback (colorful) ---------- */
body.ds-theme .media-fallback {
  background:
    linear-gradient(135deg, rgba(79, 93, 117, 0.08) 0%, rgba(111, 127, 95, 0.06) 52%, rgba(154, 95, 74, 0.045) 100%),
    #f3f2ee;
}

/* ---------- Portfolio Visual Diagrams ---------- */
.process-diagram,
.capability-map,
.project-matrix {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(230, 230, 232, 0.9);
  border-radius: var(--ds-radius-xl);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--ds-shadow-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.process-diagram {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
  padding: clamp(1rem, 2vw, 1.35rem);
}

.process-diagram__rail {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 2.25rem;
  height: 2px;
  background: linear-gradient(90deg, var(--ds-panel-1), var(--ds-panel-2), var(--ds-panel-3), var(--ds-panel-4), var(--ds-panel-5));
  opacity: 0.45;
}

.process-step {
  position: relative;
  z-index: 1;
  min-height: 190px;
  padding: 1rem;
  border: 1px solid rgba(230, 230, 232, 0.9);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.76);
}

.process-step::before {
  content: "";
  display: block;
  width: 0.78rem;
  height: 0.78rem;
  margin-bottom: 1.2rem;
  border-radius: 999px;
  background: var(--step-color, var(--accent));
  box-shadow: 0 0 0 0.42rem color-mix(in srgb, var(--step-color, var(--accent)) 18%, transparent);
}

.process-step__index {
  display: inline-flex;
  margin-bottom: 0.7rem;
  color: var(--step-color, var(--accent));
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.process-step h3,
.capability-node h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.2;
}

.process-step p,
.capability-node p {
  margin-top: 0.55rem;
  color: var(--ink-soft);
  font-size: 0.86rem;
  line-height: 1.5;
}

.capability-map {
  min-height: 520px;
  padding: 1rem;
}

.capability-map::before,
.capability-map::after {
  content: "";
  position: absolute;
  inset: 15%;
  border: 1px solid rgba(79, 93, 117, 0.14);
  border-radius: 999px;
  pointer-events: none;
}

.capability-map::after {
  inset: 29%;
  border-color: rgba(154, 95, 74, 0.14);
}

.capability-map__core {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  display: grid;
  width: min(42%, 260px);
  min-height: 120px;
  place-items: center;
  padding: 1rem;
  border-radius: 999px;
  background: #39465a;
  color: #fff;
  text-align: center;
  font-weight: 800;
  line-height: 1.2;
  transform: translate(-50%, -50%);
  box-shadow: 0 18px 42px -24px rgba(15, 15, 16, 0.46);
}

.capability-node {
  position: absolute;
  z-index: 3;
  width: min(34%, 230px);
  min-height: 132px;
  padding: 1rem;
  border: 1px solid rgba(230, 230, 232, 0.9);
  border-top: 4px solid var(--node-color, var(--accent));
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--ds-shadow-card);
}

.capability-node--design { left: 6%; top: 8%; }
.capability-node--hardware { right: 6%; top: 10%; }
.capability-node--code { right: 8%; bottom: 22%; }
.capability-node--ai { left: 8%; bottom: 22%; }
.capability-node--story { left: 50%; bottom: 4%; transform: translateX(-50%); }

.project-matrix {
  padding: clamp(1rem, 2.5vw, 1.5rem);
}

.project-matrix__header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.project-matrix__header p:last-child {
  max-width: 24rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.5;
}

.project-matrix__plot {
  position: relative;
  min-height: 420px;
  border: 1px solid rgba(230, 230, 232, 0.9);
  border-radius: 18px;
  background:
    linear-gradient(90deg, rgba(79, 93, 117, 0.08) 0 1px, transparent 1px) 0 0 / 25% 100%,
    linear-gradient(180deg, rgba(79, 93, 117, 0.08) 0 1px, transparent 1px) 0 0 / 100% 25%,
    radial-gradient(circle at 18% 82%, rgba(111, 127, 95, 0.1), transparent 24%),
    radial-gradient(circle at 82% 25%, rgba(154, 95, 74, 0.09), transparent 26%),
    rgba(255, 255, 255, 0.68);
}

.project-matrix__plot::before,
.project-matrix__plot::after {
  content: "";
  position: absolute;
  background: rgba(15, 15, 16, 0.12);
  pointer-events: none;
}

.project-matrix__plot::before {
  left: 10%;
  right: 10%;
  top: 50%;
  height: 1px;
}

.project-matrix__plot::after {
  top: 10%;
  bottom: 10%;
  left: 50%;
  width: 1px;
}

.project-matrix__axis {
  position: absolute;
  z-index: 2;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-matrix__axis--x { left: 1rem; bottom: 0.85rem; }
.project-matrix__axis--x-end { right: 1rem; bottom: 0.85rem; }
.project-matrix__axis--y { left: 1rem; top: 0.85rem; }
.project-matrix__axis--y-end { left: 1rem; bottom: 2.4rem; }

.matrix-dot {
  position: absolute;
  left: var(--x);
  top: var(--y);
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  max-width: 13rem;
  padding: 0.42rem 0.62rem 0.42rem 0.48rem;
  border: 1px solid rgba(230, 230, 232, 0.9);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  box-shadow: 0 8px 22px -14px rgba(15, 15, 16, 0.28);
  transform: translate(-50%, -50%);
  transition: transform 0.18s var(--ds-ease-spring), box-shadow 0.18s ease, border-color 0.18s ease;
}

.matrix-dot::before {
  content: "";
  flex: 0 0 auto;
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 999px;
  background: var(--dot-color, var(--accent));
  box-shadow: none;
}

.matrix-dot:hover,
.matrix-dot:focus-visible {
  border-color: color-mix(in srgb, var(--dot-color, var(--accent)) 45%, white);
  box-shadow: 0 14px 30px -16px rgba(15, 15, 16, 0.38);
  transform: translate(-50%, -50%) scale(1.04);
}

@media (max-width: 900px) {
  .process-diagram {
    grid-template-columns: 1fr;
  }

  .process-diagram__rail {
    left: 1.38rem;
    right: auto;
    top: 2rem;
    bottom: 2rem;
    width: 2px;
    height: auto;
    background: linear-gradient(180deg, var(--ds-panel-1), var(--ds-panel-2), var(--ds-panel-3), var(--ds-panel-4), var(--ds-panel-5));
  }

  .process-step {
    min-height: auto;
    padding-left: 2.25rem;
  }

  .process-step::before {
    position: absolute;
    left: 0.98rem;
    top: 1.12rem;
  }

  .capability-map {
    display: grid;
    gap: 0.9rem;
    min-height: auto;
  }

  .capability-map::before,
  .capability-map::after {
    display: none;
  }

  .capability-map__core,
  .capability-node {
    position: relative;
    inset: auto;
    width: auto;
    min-height: auto;
    transform: none;
  }

  .capability-map__core {
    border-radius: 18px;
  }

  .project-matrix__header {
    align-items: start;
    flex-direction: column;
  }
}

@media (max-width: 700px) {
  .project-matrix__plot {
    min-height: 0;
    display: grid;
    gap: 0.65rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.68);
  }

  .project-matrix__plot::before,
  .project-matrix__plot::after,
  .project-matrix__axis {
    display: none;
  }

  .matrix-dot {
    position: static;
    max-width: none;
    transform: none;
    justify-content: flex-start;
  }

  .matrix-dot:hover,
  .matrix-dot:focus-visible {
    transform: translateX(2px);
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .hero-color-panels__device img { animation: none; }
  .ds-marquee__track { animation: none; }
  .ds-command-overlay,
  .ds-command-panel { transition: none; }
}

/* =====================================================================
   Monotone professional refresh
   Quiet graphite palette, flatter surfaces, lower motion, sharper rhythm.
   ===================================================================== */
:root {
  --ds-panel-1: #111827;
  --ds-panel-2: #27313f;
  --ds-panel-3: #4b5563;
  --ds-panel-4: #6b7280;
  --ds-panel-5: #9ca3af;
  --ds-panel-6: #d1d5db;

  --ink: #101114;
  --ink-soft: #3f444c;
  --muted: #69707a;
  --bg: #f7f7f5;
  --bg-soft: #eeeeeb;
  --border: #d9d9d4;
  --accent: #24272d;
  --accent-soft: rgba(36, 39, 45, 0.08);
  --accent-ink: #111827;

  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 8px;
  --ds-radius-xl: 8px;
  --shadow-sm: 0 1px 2px rgba(16, 17, 20, 0.05);
  --shadow-md: 0 16px 32px -28px rgba(16, 17, 20, 0.45);
  --ds-shadow-card: 0 1px 0 rgba(255, 255, 255, 0.78) inset, 0 12px 28px -24px rgba(16, 17, 20, 0.34);
  --ds-shadow-glow: 0 1px 0 rgba(255, 255, 255, 0.84) inset, 0 18px 36px -30px rgba(16, 17, 20, 0.46);
  --ds-glass: rgba(247, 247, 245, 0.92);
  --ds-glass-border: rgba(217, 217, 212, 0.9);
}

body.ds-theme {
  background: #f7f7f5;
  background-image:
    linear-gradient(rgba(16, 17, 20, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 17, 20, 0.03) 1px, transparent 1px);
  background-size: 44px 44px;
  color: var(--ink);
}

body.ds-theme .ds-spotlight,
body.ds-theme .ds-shine::before,
body.ds-theme .ds-shine::after {
  display: none;
}

body.ds-theme .site-header {
  background: rgba(247, 247, 245, 0.94);
  border-bottom-color: var(--border);
  box-shadow: none;
}

body.ds-theme .site-header img {
  filter: grayscale(1) contrast(1.08);
}

body.ds-theme .nav-link:hover,
body.ds-theme .nav-link[aria-current="page"] {
  color: var(--ink);
}

body.ds-theme .ds-command-trigger,
body.ds-theme .btn,
body.ds-theme .tag,
body.ds-theme .ds-stack-badge,
body.ds-theme .project-card-type,
body.ds-theme .iteration-step,
body.ds-theme .centerpiece-badge {
  border-radius: 6px;
}

body.ds-theme .btn-primary,
body.ds-theme .btn-accent {
  background: #17191f;
  border: 1px solid #17191f;
  color: #fff;
  box-shadow: none;
}

body.ds-theme .btn-primary:hover,
body.ds-theme .btn-accent:hover {
  background: #2a2d34;
  border-color: #2a2d34;
}

body.ds-theme .btn-secondary,
body.ds-theme .btn-ghost,
body.ds-theme .ds-command-trigger {
  background: #fff;
  border-color: var(--border);
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

body.ds-theme .btn-secondary:hover,
body.ds-theme .btn-ghost:hover,
body.ds-theme .ds-command-trigger:hover {
  background: #eeeeeb;
  border-color: #c9c9c2;
  transform: translateY(-1px);
}

.hero-title,
.page-title,
.section-title,
.card-title,
h1,
h2,
h3,
h4 {
  letter-spacing: 0;
}

.hero-title {
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.02;
}

.hero-title .hero-title-line--accent {
  color: var(--ink-soft);
  font-size: clamp(1.25rem, 3vw, 2.15rem);
  line-height: 1.18;
}

.ds-section-label,
body.ds-theme .eyebrow,
body.ds-theme .project-card-type {
  color: #454a52;
}

.ds-section-label,
body.ds-theme .project-card-type {
  background: #ececea;
  border: 1px solid var(--border);
}

.ds-stack-badge {
  background: #fff;
  color: var(--ink-soft);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
}

.ds-stack-badge:hover {
  border-color: #c9c9c2;
  box-shadow: none;
  transform: none;
}

.ds-stack-badge__dot {
  background: #545961 !important;
  border-radius: 2px;
}

.hero-color-panels {
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.hero-color-panels__grid {
  align-items: stretch;
}

.hero-color-panels__visual,
.hero-color-panels__mobile-visual {
  background: #e7e7e3;
  border-color: var(--border);
  box-shadow: var(--ds-shadow-card);
}

.hero-color-panels__visual {
  min-height: 420px;
}

.hero-color-panels__visual::after {
  background:
    linear-gradient(180deg, rgba(247, 247, 245, 0) 55%, rgba(247, 247, 245, 0.36) 100%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0));
}

.hero-color-panels__device img {
  filter: grayscale(1) contrast(1.04) drop-shadow(0 22px 38px rgba(16, 17, 20, 0.18));
  animation: none;
  border-radius: 6px;
}

.ds-marquee {
  background: #ededeb;
  border-block-color: var(--border);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  padding-block: 0.65rem;
}

.ds-marquee__track {
  animation: none;
  transform: none;
}

.ds-marquee__item {
  color: #5f656f;
}

.ds-marquee__item span {
  color: #23262c;
}

body.ds-theme .project-card,
body.ds-theme .card,
body.ds-theme .experiment-card,
body.ds-theme .skill-card,
.process-diagram,
.capability-map,
.project-matrix {
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--border);
  border-radius: 8px;
  box-shadow: var(--ds-shadow-card);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

body.ds-theme .project-card:hover,
body.ds-theme .card-hover:hover,
body.ds-theme .experiment-card:hover,
body.ds-theme .skill-card:hover {
  border-color: #bfc1bc;
  box-shadow: var(--ds-shadow-glow);
  transform: translateY(-2px);
}

body.ds-theme .tag {
  background: #f4f4f2;
  border-color: var(--border);
  color: #454a52;
}

body.ds-theme .tag-accent {
  background: #e8e8e5;
  color: var(--ink);
}

body.ds-theme .media-fallback,
.media-fallback,
.asset-placeholder {
  background:
    linear-gradient(135deg, rgba(16, 17, 20, 0.07), rgba(16, 17, 20, 0.015)),
    #eeeeeb;
}

.media-fallback__label,
.asset-placeholder__label {
  color: #343840;
}

.process-diagram {
  gap: 0.75rem;
}

.process-diagram__rail {
  background: #bfc1bc;
  opacity: 1;
}

.process-step {
  background: #fbfbfa;
  border-color: var(--border);
  border-radius: 8px;
}

.process-step::before {
  background: #343840;
  box-shadow: 0 0 0 0.42rem rgba(16, 17, 20, 0.08);
  border-radius: 2px;
}

.process-step__index {
  color: #343840;
}

body.ds-theme .skill-grid .skill-card {
  --card-accent: #343840 !important;
}

body.ds-theme .skill-card h3::before {
  background: #343840;
  border-radius: 2px;
  box-shadow: none;
}

body.ds-theme .contact-cta {
  background: #17191f;
  border: 1px solid #2d3037;
  box-shadow: none;
}

body.ds-theme .contact-cta::before {
  display: none;
}

body.ds-theme .contact-cta .eyebrow {
  color: #c6cad0;
}

.contact-cta p {
  color: #d8dadd;
}

body.ds-theme .btn-on-dark {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}

body.ds-theme .btn-on-dark:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.42);
}

.ds-command-overlay {
  background: rgba(16, 17, 20, 0.22);
}

.ds-command-panel {
  border-color: var(--border);
  border-radius: 8px;
  background: #fbfbfa;
  box-shadow: 0 20px 56px -28px rgba(16, 17, 20, 0.44);
}

.ds-command-item {
  border-radius: 6px;
}

.ds-command-item:hover,
.ds-command-item:focus-visible {
  background: #eeeeeb;
  transform: none;
}

@media (max-width: 900px) {
  .process-diagram__rail {
    background: #bfc1bc;
  }
}

/* =====================================================================
   Quiet Machines — portfolio theme derived from the featured three
   Calm utility · visible systems · human agency · material reuse
   ===================================================================== */
:root {
  /* Foundations */
  --qm-paper: #f2f0e8;
  --qm-surface: #fbfaf5;
  --qm-surface-raised: #ffffff;
  --qm-graphite: #171a18;
  --qm-ink-soft: #454b46;
  --qm-muted: #697069;
  --qm-line: #cfd2c8;

  /* Semantic accents */
  --qm-utility: #3f596e;
  --qm-utility-soft: #e3e9ec;
  --qm-growth: #5d6f54;
  --qm-growth-soft: #e6eadf;
  --qm-signal: #9b5c42;
  --qm-signal-soft: #f1e4dc;
  --qm-caution: #ad772f;

  /* Backward-compatible aliases for existing diagrams and canvas panels. */
  --ds-panel-1: var(--qm-utility);
  --ds-panel-2: var(--qm-growth);
  --ds-panel-3: var(--qm-signal);
  --ds-panel-4: #59615b;
  --ds-panel-5: var(--qm-caution);
  --ds-panel-6: var(--qm-line);

  /* Shared system aliases */
  --ink: var(--qm-graphite);
  --ink-soft: var(--qm-ink-soft);
  --muted: var(--qm-muted);
  --bg: var(--qm-paper);
  --bg-soft: #e9e8e1;
  --border: var(--qm-line);
  --accent: var(--qm-utility);
  --accent-soft: var(--qm-utility-soft);
  --accent-ink: #2e4659;
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 14px;
  --ds-radius-xl: 14px;
  --qm-space-1: 0.25rem;
  --qm-space-2: 0.5rem;
  --qm-space-3: 0.75rem;
  --qm-space-4: 1rem;
  --qm-space-6: 1.5rem;
  --qm-space-8: 2rem;
  --qm-space-12: 3rem;
  --qm-space-16: 4rem;
  --qm-rule: 1px solid var(--qm-line);
  --qm-shadow: 0 14px 34px -28px rgba(23, 26, 24, 0.5);
}

body.ds-theme {
  --project-accent: var(--qm-utility);
  --project-accent-soft: var(--qm-utility-soft);
  background-color: var(--qm-paper);
  background-image:
    linear-gradient(rgba(23, 26, 24, 0.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 26, 24, 0.026) 1px, transparent 1px);
  background-size: 48px 48px;
}

[data-scroll-theme="monoscribe"] {
  --project-accent: var(--qm-utility);
  --project-accent-soft: var(--qm-utility-soft);
}

[data-scroll-theme="seed-planter"] {
  --project-accent: var(--qm-growth);
  --project-accent-soft: var(--qm-growth-soft);
}

[data-scroll-theme="signal"] {
  --project-accent: var(--qm-signal);
  --project-accent-soft: var(--qm-signal-soft);
}

body.ds-theme .site-header {
  background: color-mix(in srgb, var(--qm-paper) 94%, transparent);
  border-bottom: var(--qm-rule);
}

body.ds-theme .project-hero {
  position: relative;
  border-top: 4px solid var(--project-accent);
}

body.ds-theme .project-hero::before {
  content: "SYSTEM / HUMAN / TOOL";
  position: absolute;
  top: 1rem;
  right: max(1.25rem, calc((100vw - var(--maxw)) / 2));
  color: var(--muted);
  font: 600 0.62rem/1.2 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.12em;
}

body.ds-theme .project-hero .eyebrow,
body.ds-theme .case-section .eyebrow,
body.ds-theme .story-chapter .eyebrow {
  color: var(--project-accent);
}

body.ds-theme .project-hero .page-title {
  max-width: 13ch;
}

body.ds-theme .project-snapshot {
  border-block-color: var(--qm-line);
  background: color-mix(in srgb, var(--project-accent-soft) 46%, var(--qm-surface));
}

body.ds-theme .project-snapshot span,
body.ds-theme .decision-label,
body.ds-theme .story-chapter__num {
  color: var(--project-accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.08em;
}

body.ds-theme .callout,
body.ds-theme .decision-card,
body.ds-theme .insight-card,
body.ds-theme .principle-card,
body.ds-theme .timeline-step,
body.ds-theme .flow-node {
  border-color: var(--qm-line);
  background: var(--qm-surface);
  box-shadow: none;
}

body.ds-theme .callout,
body.ds-theme .decision-card,
body.ds-theme .principle-card {
  border-top: 3px solid var(--project-accent);
}

body.ds-theme .timeline-step::before,
body.ds-theme .story-progress__bar {
  background: var(--project-accent);
}

body.ds-theme .project-card {
  --card-accent: var(--qm-utility);
  border-top: 3px solid var(--card-accent);
}

[data-project="monoscribe"] { --card-accent: var(--qm-utility); }
[data-project="seed-planter"] { --card-accent: var(--qm-growth); }
[data-project="signal"] { --card-accent: var(--qm-signal); }

body.ds-theme .card[data-project] {
  border-top: 3px solid var(--card-accent);
}

body.ds-theme .project-card-grid .project-card:first-child {
  --card-accent: var(--qm-growth);
}

body.ds-theme .project-card-grid .project-card:last-child {
  --card-accent: var(--qm-signal);
}

body.ds-theme .project-card-type,
body.ds-theme .project-card-cta {
  color: var(--card-accent);
}

/* Theme thesis block used on the home page and system reference. */
.qm-thesis {
  border-block: var(--qm-rule);
  background: color-mix(in srgb, var(--qm-surface) 88%, transparent);
}

.qm-thesis__header {
  display: grid;
  gap: 1rem;
  align-items: end;
}

@media (min-width: 800px) {
  .qm-thesis__header {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  }
}

.qm-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 0.75rem;
  color: var(--qm-utility);
  font: 700 0.68rem/1.2 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.qm-kicker::before {
  content: "";
  width: 1.5rem;
  height: 2px;
  background: currentColor;
}

.qm-thesis__statement {
  max-width: 22ch;
  font-family: var(--font-heading);
  font-size: clamp(1.65rem, 3.5vw, 2.8rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.qm-principle-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 2rem;
  border: var(--qm-rule);
  background: var(--qm-line);
}

@media (min-width: 720px) {
  .qm-principle-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.qm-principle {
  --principle-accent: var(--qm-utility);
  min-height: 12rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  background: var(--qm-surface);
}

.qm-principle:nth-child(2) { --principle-accent: var(--qm-growth); }
.qm-principle:nth-child(3) { --principle-accent: var(--qm-signal); }

.qm-principle__index {
  display: block;
  margin-bottom: 2.5rem;
  color: var(--principle-accent);
  font: 700 0.7rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.qm-principle h3 {
  margin: 0;
  font-size: 1.05rem;
}

.qm-principle p {
  margin-top: 0.65rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Living design-system specimens. */
.qm-system-hero {
  padding-block: clamp(4rem, 10vw, 8rem);
  border-top: 4px solid var(--qm-utility);
  border-bottom: var(--qm-rule);
}

.qm-system-hero__grid {
  display: grid;
  gap: 2.5rem;
  align-items: end;
}

@media (min-width: 850px) {
  .qm-system-hero__grid { grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.65fr); }
}

.qm-system-meta {
  border-left: 3px solid var(--qm-utility);
  padding-left: 1rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.qm-system-section {
  padding-block: clamp(3rem, 7vw, 6rem);
  border-bottom: var(--qm-rule);
}

.qm-system-section__head {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 760px) {
  .qm-system-section__head { grid-template-columns: 12rem minmax(0, 1fr); }
}

.qm-system-section__num {
  color: var(--muted);
  font: 600 0.7rem/1.3 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.1em;
}

.qm-swatch-grid,
.qm-component-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1rem;
}

.qm-swatch,
.qm-specimen {
  overflow: hidden;
  border: var(--qm-rule);
  border-radius: var(--radius-lg);
  background: var(--qm-surface);
}

.qm-swatch__color {
  min-height: 7rem;
  background: var(--swatch);
  border-bottom: var(--qm-rule);
}

.qm-swatch__meta,
.qm-specimen {
  padding: 1rem;
}

.qm-swatch__meta strong,
.qm-swatch__meta code {
  display: block;
}

.qm-swatch__meta code,
.qm-token {
  margin-top: 0.3rem;
  color: var(--muted);
  font: 500 0.72rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.qm-type-display {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.qm-type-body {
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.7;
}

.qm-rule-list {
  display: grid;
  gap: 1px;
  border: var(--qm-rule);
  background: var(--qm-line);
}

.qm-rule-list li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 1rem;
  padding: 1.15rem;
  background: var(--qm-surface);
  color: var(--ink-soft);
}

.qm-rule-list span {
  color: var(--qm-utility);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (max-width: 640px) {
  body.ds-theme .project-hero::before { display: none; }
  .qm-principle { min-height: 0; }
  .qm-principle__index { margin-bottom: 1.25rem; }
}

/* =====================================================================
   Quiet Machines — high-expression layer
   A deliberately visible departure from the former monochrome portfolio.
   ===================================================================== */

/* Homepage: dark studio hero with an oversized editorial title. */
body.qm-home .hero-color-panels {
  isolation: isolate;
  min-height: calc(100vh - 3.5rem);
  display: flex;
  align-items: center;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    var(--qm-graphite);
  background-size: 48px 48px;
  color: var(--qm-surface);
  border-bottom: 8px solid var(--qm-utility);
}

body.qm-home .hero-color-panels::before {
  content: "QUIET MACHINES / 01";
  position: absolute;
  top: 1.5rem;
  right: max(1.25rem, calc((100vw - var(--maxw)) / 2));
  color: rgba(255, 255, 255, 0.48);
  font: 700 0.65rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.14em;
}

body.qm-home .hero-color-panels .ds-section-label {
  color: #dce7ec;
  background: rgba(63, 89, 110, 0.36);
  border-color: rgba(186, 207, 218, 0.3);
}

body.qm-home .hero-title {
  color: #fff;
  font-size: clamp(3.6rem, 9.5vw, 7.5rem);
  line-height: 0.86;
  letter-spacing: -0.065em;
}

body.qm-home .hero-title .hero-title-line--accent {
  max-width: 18ch;
  margin-top: 1.25rem;
  color: #b9ccd5;
  font-size: clamp(1.25rem, 2.8vw, 2.25rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

body.qm-home .hero-color-panels .body-large,
body.qm-home .hero-color-panels .body,
body.qm-home .hero-color-panels .text-neutral-700 {
  color: #c9ceca !important;
}

body.qm-home .hero-color-panels .btn-primary {
  background: var(--qm-surface);
  border-color: var(--qm-surface);
  color: var(--qm-graphite);
}

body.qm-home .hero-color-panels .btn-primary:hover {
  background: #fff;
  border-color: #fff;
}

body.qm-home .hero-color-panels .btn-secondary {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
}

body.qm-home .hero-color-panels .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.65);
}

body.qm-home .hero-color-panels .ds-stack-badge {
  color: #e1e4e1;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
}

body.qm-home .hero-color-panels .ds-stack-badge__dot {
  background: #b9ccd5 !important;
}

body.qm-home .hero-color-panels__visual {
  min-height: 560px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 0;
  box-shadow: 18px 18px 0 var(--qm-utility);
  background: var(--qm-paper);
}

body.qm-home .hero-color-panels__visual::before {
  content: "FOCUS / TOOL / V4";
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 4;
  padding: 0.45rem 0.6rem;
  color: #fff;
  background: var(--qm-graphite);
  font: 700 0.62rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.1em;
}

body.qm-home .hero-color-panels__device img {
  max-width: 82%;
  max-height: 84%;
  filter: drop-shadow(0 28px 45px rgba(23, 26, 24, 0.3));
}

/* Homepage thesis: a full color manifesto rather than a quiet divider. */
body.qm-home .qm-thesis {
  color: #fff;
  background: var(--qm-utility);
  border: 0;
  padding-block: clamp(4rem, 8vw, 7rem);
}

body.qm-home .qm-thesis .qm-kicker,
body.qm-home .qm-thesis a {
  color: #d7e5eb;
}

body.qm-home .qm-thesis__statement {
  color: #fff;
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

body.qm-home .qm-principle-grid {
  margin-top: 3rem;
  border-color: rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.32);
}

body.qm-home .qm-principle {
  min-height: 17rem;
  color: var(--qm-graphite);
  background: var(--qm-surface);
}

body.qm-home .qm-principle h3 {
  font-size: 1.3rem;
}

/* Homepage projects: unmistakable color coding and large assembly numbers. */
body.qm-home #featured-case-studies {
  padding-block: clamp(4rem, 8vw, 7rem);
}

body.qm-home #featured-case-studies > .site-container > .section-heading {
  max-width: 960px;
}

body.qm-home #featured-case-studies .section-title {
  font-size: clamp(2.1rem, 4.5vw, 4rem);
  line-height: 0.98;
}

body.qm-home .project-card {
  position: relative;
  border: 1px solid var(--qm-graphite);
  border-top: 9px solid var(--card-accent);
  border-radius: 0;
  box-shadow: 10px 10px 0 color-mix(in srgb, var(--card-accent) 68%, var(--qm-paper));
}

body.qm-home .project-card::before {
  content: "03";
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 4;
  color: rgba(255, 255, 255, 0.82);
  font: 700 2rem/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.42);
}

body.qm-home .project-card[data-project="monoscribe"]::before { content: "01"; }
body.qm-home .project-card[data-project="seed-planter"]::before { content: "02"; }

body.qm-home .project-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 14px 14px 0 color-mix(in srgb, var(--card-accent) 72%, var(--qm-paper));
}

body.qm-home .project-card-content {
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--card-accent) 9%, transparent), transparent 38%),
    var(--qm-surface);
}

body.qm-home .project-card-type {
  padding: 0;
  border: 0;
  background: transparent;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.1em;
}

/* Work index: bold title band and color-coded case-study assemblies. */
body.qm-work .ds-page-hero {
  padding-top: clamp(4rem, 9vw, 8rem);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    var(--qm-graphite);
  background-size: 48px 48px;
  color: #fff;
  border-bottom: 8px solid var(--qm-utility);
}

body.qm-work .ds-page-hero > .site-container > .body-large,
body.qm-work .ds-page-hero .text-neutral-600,
body.qm-work .ds-page-hero .text-neutral-500 {
  color: #cbd0cc !important;
}

body.qm-work .ds-page-hero .page-title {
  color: #fff;
  font-size: clamp(3.5rem, 9vw, 7rem);
  letter-spacing: -0.06em;
}

body.qm-work .ds-page-hero .card[data-project] {
  color: var(--qm-graphite);
  border: 1px solid var(--qm-line);
  border-top: 8px solid var(--card-accent);
  border-radius: 0;
  box-shadow: 9px 9px 0 color-mix(in srgb, var(--card-accent) 70%, var(--qm-graphite));
}

body.qm-work .ds-page-hero .card[data-project] .text-neutral-600,
body.qm-work .ds-page-hero .card[data-project] .text-neutral-500 {
  color: var(--qm-ink-soft) !important;
}

/* Featured case studies: each opens as a distinct project world. */
body.ds-theme[data-scroll-theme] .project-hero {
  overflow: hidden;
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
  color: #fff;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    var(--project-accent);
  background-size: 48px 48px;
  border-top: 0;
  border-bottom: 8px solid var(--qm-graphite);
}

body.ds-theme[data-scroll-theme] .project-hero::after {
  content: "";
  position: absolute;
  width: 38vw;
  height: 38vw;
  min-width: 300px;
  min-height: 300px;
  right: -12vw;
  top: -18vw;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  box-shadow:
    0 0 0 5vw rgba(255, 255, 255, 0.035),
    0 0 0 10vw rgba(255, 255, 255, 0.025);
  pointer-events: none;
}

body.ds-theme[data-scroll-theme] .project-hero .site-container {
  position: relative;
  z-index: 2;
}

body.ds-theme[data-scroll-theme] .project-hero .case-back-link,
body.ds-theme[data-scroll-theme] .project-hero .eyebrow,
body.ds-theme[data-scroll-theme] .project-hero .project-subtitle,
body.ds-theme[data-scroll-theme] .project-hero .body-large,
body.ds-theme[data-scroll-theme] .project-hero .text-neutral-700 {
  color: rgba(255, 255, 255, 0.88) !important;
}

body.ds-theme[data-scroll-theme] .project-hero .eyebrow {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

body.ds-theme[data-scroll-theme] .project-hero .page-title {
  color: #fff;
  font-size: clamp(4rem, 11vw, 8.5rem);
  line-height: 0.86;
  letter-spacing: -0.07em;
}

body.ds-theme[data-scroll-theme] .project-hero .project-subtitle {
  max-width: 34ch;
  margin-top: 1.25rem;
  font-size: clamp(1.25rem, 2.4vw, 2rem);
  line-height: 1.15;
}

body.ds-theme[data-scroll-theme] .project-hero .btn-primary {
  color: var(--qm-graphite);
  background: #fff;
  border-color: #fff;
}

body.ds-theme[data-scroll-theme] .project-hero .btn-secondary,
body.ds-theme[data-scroll-theme] .project-hero .btn-ghost {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.42);
}

body.ds-theme[data-scroll-theme] .project-hero .hero-figure {
  position: relative;
  margin-top: clamp(2.5rem, 6vw, 5rem);
  padding: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 0;
  background: var(--qm-surface);
  box-shadow: 18px 18px 0 var(--qm-graphite);
}

body.ds-theme[data-scroll-theme] .project-hero .hero-figure img,
body.ds-theme[data-scroll-theme] .project-hero .hero-figure video,
body.ds-theme[data-scroll-theme] .project-hero .hero-figure iframe,
body.ds-theme[data-scroll-theme] .project-hero .signal-video-frame {
  border-radius: 0;
}

body.ds-theme[data-scroll-theme] .project-hero .hero-figure figcaption {
  color: var(--qm-ink-soft);
}

body.ds-theme[data-scroll-theme] .case-section > .site-container > .section-heading,
body.ds-theme[data-scroll-theme] .story-chapter__rail {
  border-left: 5px solid var(--project-accent);
  padding-left: 1.25rem;
}

body.ds-theme[data-scroll-theme] .case-section .section-title,
body.ds-theme[data-scroll-theme] .story-chapter .section-title {
  font-size: clamp(1.8rem, 3.3vw, 3rem);
  letter-spacing: -0.035em;
}

/* Keep seed-planter chapter headings inside their sticky rail at wide viewports. */
@media (min-width: 900px) {
  body.ds-theme[data-scroll-theme="seed-planter"] .story-chapter__rail .section-title {
    max-width: 100%;
    font-size: clamp(1.8rem, 2.1vw, 2.35rem);
    overflow-wrap: anywhere;
    hyphens: auto;
  }
}

@media (max-width: 899px) {
  body.qm-home .hero-color-panels {
    min-height: auto;
  }

  body.qm-home .hero-title {
    font-size: clamp(3.4rem, 16vw, 5.6rem);
  }

  body.qm-home .hero-color-panels__mobile-visual {
    border-radius: 0;
    border-color: rgba(255, 255, 255, 0.24);
    box-shadow: 8px 8px 0 var(--qm-utility);
  }
}

@media (max-width: 640px) {
  body.qm-home .hero-color-panels::before { display: none; }
  body.qm-home .project-card { box-shadow: 6px 6px 0 color-mix(in srgb, var(--card-accent) 68%, var(--qm-paper)); }
  body.ds-theme[data-scroll-theme] .project-hero .hero-figure { box-shadow: 8px 8px 0 var(--qm-graphite); }
}

/* =====================================================================
   Portfolio cleanup — calmer surfaces, direct project access, real media
   ===================================================================== */
body.ds-theme {
  --qm-paper: #f5f5f2;
  --qm-surface: #ffffff;
  --qm-surface-raised: #ffffff;
  background-color: var(--qm-paper);
  background-image: none;
}

body.ds-theme .site-header {
  background: rgba(255, 255, 255, 0.94);
  border-bottom-color: #deded8;
  box-shadow: 0 1px 0 rgba(23, 26, 24, 0.03);
}

body.qm-home .hero-color-panels {
  min-height: auto;
  padding-block: clamp(4rem, 8vw, 6.5rem);
  background:
    radial-gradient(circle at 10% 10%, rgba(63, 89, 110, 0.22), transparent 34%),
    var(--qm-graphite);
  border-bottom-width: 5px;
}

body.qm-home .hero-title {
  max-width: 10ch;
  font-size: clamp(3.2rem, 7.5vw, 6.25rem);
  line-height: 0.92;
}

body.qm-home .hero-color-panels__visual {
  min-height: 500px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 16px;
  background: #252a27;
  box-shadow: 14px 14px 0 var(--qm-utility);
}

body.qm-home .hero-color-panels__visual::after {
  background: linear-gradient(180deg, transparent 65%, rgba(23, 26, 24, 0.2));
}

body.qm-home .hero-color-panels__visual > img,
body.qm-home .hero-color-panels__mobile-visual > img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
}

body.qm-home .hero-color-panels__mobile-visual {
  height: 240px;
  border-radius: 12px;
  background: #252a27;
}

body:not(.qm-work).ds-theme .ds-page-hero {
  padding-block: clamp(3.5rem, 7vw, 5.5rem);
  background: var(--qm-surface);
  border-bottom: 1px solid var(--qm-line);
}

body:not(.qm-work).ds-theme .ds-page-hero__inner {
  max-width: 920px !important;
}

body:not(.qm-work).ds-theme .ds-page-hero .page-title {
  max-width: 17ch;
  font-size: clamp(3rem, 6.5vw, 5.75rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

body.ds-theme .card,
body.ds-theme .project-card,
body.ds-theme .experiment-card,
body.ds-theme .skill-card {
  background: #fff;
}

@media (max-width: 899px) {
  body.qm-home .hero-title {
    max-width: 12ch;
    font-size: clamp(3rem, 14vw, 5rem);
  }
}