/* ═══════════════════════════════════════════════════════════════════
   COMPONENTS — glass surfaces, buttons, pills, badges, forms, marquee
   ═══════════════════════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════
   GLASS PANEL
   The core material of the whole site.

   Four things make frosted glass read as real:
     1. a translucent fill (not a flat colour)
     2. a backdrop blur + slight saturation boost
     3. a bright rim on the top edge, dark on the bottom
     4. a soft outer shadow so it floats off the substrate
   ═══════════════════════════════════════════════ */
.glass {
  position: relative;
  background: var(--surface-card);
  border: 1px solid var(--brd-1);
  border-radius: var(--r-xl);
  backdrop-filter: blur(var(--blur-md)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--blur-md)) saturate(140%);
  box-shadow: var(--sh-md), var(--sh-inset);
  transition: background-color var(--t-base), border-color var(--t-base),
              box-shadow var(--t-base), transform var(--t-base);
}

/* The lit top edge. Drawn as a 1px gradient strip. */
.glass::before {
  content: '';
  position: absolute;
  inset-inline: 12%;
  top: 0;
  height: 1px;
  background: var(--grad-rim);
  opacity: 0.55;
  transition: opacity var(--t-base), inset-inline var(--t-slow);
  pointer-events: none;
}

.glass:hover::before {
  opacity: 1;
  inset-inline: 4%;
}

.glass--flush { border-radius: var(--r-lg); }
.glass--soft  { border-radius: var(--r-2xl); }

.glass--raised {
  background: var(--glass-2);
  box-shadow: var(--sh-lg), var(--sh-inset);
}

.glass--deep {
  backdrop-filter: blur(var(--blur-xl)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--blur-xl)) saturate(150%);
  background: var(--glass-solid);
}

.glass--well {
  background: var(--surface-well);
  box-shadow: inset 0 2px 12px rgba(0, 0, 0, 0.34);
}

.glass--well::before { display: none; }

/* Interactive glass — lifts and warms toward the accent on hover */
.glass--hover:hover {
  background: var(--surface-card-hover);
  border-color: var(--brd-2);
  box-shadow: var(--sh-lg), var(--sh-inset),
              0 0 40px rgba(var(--ac-1-rgb), 0.08);
}

/* Fallback: without backdrop-filter, glass must become opaque or
   text lands on top of the aurora and becomes unreadable. */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .glass, .glass--deep { background: var(--bg-2); }
  [data-theme='light'] .glass,
  [data-theme='light'] .glass--deep { background: #FFFFFF; }
}

/* ═══════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════ */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 0.92rem 1.6rem;
  border-radius: var(--r-full);
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.005em;
  white-space: nowrap;
  cursor: pointer;
  isolation: isolate;
  overflow: hidden;
  transition: transform var(--t-base), box-shadow var(--t-base),
              background-color var(--t-base), border-color var(--t-base),
              color var(--t-base);
}

.btn:active { transform: translateY(1px) scale(0.985); }

.btn svg { width: 17px; height: 17px; }

/* The arrow inside a button nudges forward on hover */
.btn .btn-arrow {
  display: inline-block;
  transition: transform var(--t-base);
}

.btn:hover .btn-arrow { transform: translateX(4px); }

/* ── PRIMARY — solid gradient fill ── */
.btn-primary {
  background: var(--grad-brand);
  background-size: 200% 100%;
  color: var(--tx-inv);
  border: 1px solid transparent;
  box-shadow: var(--sh-btn);
  font-weight: 700;
}

.btn-primary:hover {
  background-position: 100% 0;
  transform: translateY(-2px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.28) inset,
              0 14px 34px rgba(var(--ac-1-rgb), 0.36),
              0 4px 10px rgba(0, 0, 0, 0.4);
}

/* Specular sweep that crosses the fill on hover */
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    transparent 30%,
    rgba(255, 255, 255, 0.42) 50%,
    transparent 70%
  );
  transform: translateX(-100%);
  transition: transform var(--t-slow);
  z-index: -1;
}

.btn-primary:hover::after { transform: translateX(100%); }

/* ── OUTLINE — glass with a visible rim ── */
.btn-outline {
  background: var(--glass-1);
  color: var(--tx-0);
  border: 1px solid var(--brd-2);
}

.btn-outline:hover {
  background: var(--glass-3);
  border-color: var(--brd-accent);
  color: var(--ac-1);
  transform: translateY(-2px);
  box-shadow: var(--sh-glow-1);
}

/* ── GHOST — text only until hovered ── */
.btn-ghost {
  background: transparent;
  color: var(--tx-2);
  border: 1px solid transparent;
  padding-inline: 1.1rem;
}

.btn-ghost:hover {
  background: var(--glass-2);
  color: var(--tx-0);
  border-color: var(--brd-1);
}

/* ── SIZES ── */
.btn-sm {
  padding: 0.6rem 1.15rem;
  font-size: var(--fs-xs);
}

.btn-sm svg { width: 15px; height: 15px; }

.btn-lg {
  padding: 1.1rem 2.1rem;
  font-size: var(--fs-base);
}

.btn-full { width: 100%; }

.btn:disabled,
.btn[aria-disabled='true'] {
  opacity: 0.5;
  pointer-events: none;
}

/* Icon-only round button */
.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: var(--r-full);
  display: inline-grid;
  place-items: center;
  background: var(--glass-2);
  border: 1px solid var(--brd-1);
  color: var(--tx-2);
  transition: all var(--t-base);
}

.btn-icon:hover {
  background: var(--glass-4);
  border-color: var(--brd-accent);
  color: var(--ac-1);
  transform: translateY(-2px) scale(1.06);
  box-shadow: var(--sh-glow-1);
}

/* Button cluster */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  align-items: center;
}

/* ═══════════════════════════════════════════════
   PILLS & BADGES
   ═══════════════════════════════════════════════ */
/* PERF NOTE on backdrop-filter
   Each blurred element is its own GPU sampling pass. Large signature
   surfaces (.glass, .card, the nav, the mobile sheet, #to-top) keep
   theirs — that is where the material actually reads. The small,
   numerous ones below do not: a pill sits on a flat section fill, so
   it had nothing interesting to refract, and a page can easily carry
   forty of them. Removing those recovered the majority of the blur
   cost with no visible change. */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.42rem 0.85rem;
  border-radius: var(--r-full);
  background: var(--glass-2);
  border: 1px solid var(--brd-1);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--tx-2);
  white-space: nowrap;
  transition: all var(--t-base);
}

a.pill:hover,
button.pill:hover {
  background: var(--glass-4);
  border-color: var(--brd-accent);
  color: var(--ac-1);
  transform: translateY(-1px);
}

.pill svg { width: 13px; height: 13px; }

.pill--accent {
  background: var(--ac-1-dim);
  border-color: var(--brd-accent);
  color: var(--ac-1);
}

.pill--violet {
  background: var(--ac-2-dim);
  border-color: rgba(var(--ac-2-rgb), 0.4);
  color: var(--ac-2);
}

.pill--mint {
  background: var(--ac-3-dim);
  border-color: rgba(var(--ac-3-rgb), 0.4);
  color: var(--ac-3);
}

/* Tech chip — for stack listings */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.36rem 0.75rem;
  border-radius: var(--r-sm);
  background: var(--glass-2);
  border: 1px solid var(--brd-1);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  font-weight: 500;
  color: var(--tx-2);
  white-space: nowrap;
  transition: all var(--t-fast);
}

.chip:hover {
  background: var(--ac-1-dim);
  border-color: var(--brd-accent);
  color: var(--ac-1);
  transform: translateY(-2px);
}

.chip img { width: 13px; height: 13px; }

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}

/* Numbered index badge — the big "01" on cards */
.num-badge {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--brd-3);
  letter-spacing: -0.04em;
  transition: -webkit-text-stroke-color var(--t-base), color var(--t-base);
}

.card:hover .num-badge,
.glass--hover:hover .num-badge {
  -webkit-text-stroke-color: rgba(var(--ac-1-rgb), 0.7);
}

/* ═══════════════════════════════════════════════
   STATUS DOT — pulsing "available" indicator
   ═══════════════════════════════════════════════ */
.status-dot {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 10px;
  height: 10px;
  flex-shrink: 0;
}

.status-dot i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ac-3);
  box-shadow: 0 0 10px var(--ac-3);
}

.status-dot::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid var(--ac-3);
  animation: ping 2.4s var(--ease-out) infinite;
}

@keyframes ping {
  0%        { transform: scale(0.6); opacity: 0.9; }
  70%, 100% { transform: scale(2.4); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .status-dot::after { animation: none; opacity: 0.3; }
}

/* Live status capsule */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.5rem 1rem 0.5rem 0.8rem;
  border-radius: var(--r-full);
  background: var(--glass-2);
  border: 1px solid var(--brd-1);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  color: var(--tx-1);
  letter-spacing: 0.02em;
}

/* ═══════════════════════════════════════════════
   TIER BADGE — replaces self-rated percentages.
   Signals depth of use, and pairs with an evidence chip
   naming where the skill was actually applied.
   ═══════════════════════════════════════════════ */
.tier {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.24rem 0.6rem;
  border-radius: var(--r-full);
  font-family: var(--font-mono);
  font-size: var(--fs-3xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
  border: 1px solid;
}

/* Shipped in a real product */
.tier--production {
  background: rgba(var(--ac-3-rgb), 0.13);
  border-color: rgba(var(--ac-3-rgb), 0.45);
  color: var(--ac-3);
}

/* Deep working knowledge, used substantially */
.tier--advanced {
  background: rgba(var(--ac-1-rgb), 0.13);
  border-color: rgba(var(--ac-1-rgb), 0.42);
  color: var(--ac-1);
}

/* Actively building competence */
.tier--working {
  background: rgba(var(--ac-2-rgb), 0.11);
  border-color: rgba(var(--ac-2-rgb), 0.36);
  color: var(--ac-2);
}

/* Filled dot count, drawn purely with box-shadow */
.tier-dots {
  display: inline-flex;
  gap: 3px;
  align-items: center;
}

.tier-dots i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.35;
}

.tier--production .tier-dots i,
.tier--advanced .tier-dots i:nth-child(-n+2),
.tier--working .tier-dots i:nth-child(-n+1) { opacity: 1; }

/* ═══════════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════════ */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: clamp(1.4rem, 2.4vw, 2rem);
  background: var(--surface-card);
  border: 1px solid var(--brd-1);
  border-radius: var(--r-xl);
  backdrop-filter: blur(var(--blur-md)) saturate(140%);
  -webkit-backdrop-filter: blur(var(--blur-md)) saturate(140%);
  box-shadow: var(--sh-md), var(--sh-inset);
  overflow: hidden;
  transition: transform var(--t-base), background-color var(--t-base),
              border-color var(--t-base), box-shadow var(--t-base);
}

.card::before {
  content: '';
  position: absolute;
  inset-inline: 14%;
  top: 0;
  height: 1px;
  background: var(--grad-rim);
  opacity: 0.45;
  transition: opacity var(--t-base), inset-inline var(--t-slow);
  pointer-events: none;
}

.card:hover {
  background: var(--surface-card-hover);
  border-color: var(--brd-2);
  box-shadow: var(--sh-lg), var(--sh-inset),
              0 0 50px rgba(var(--ac-1-rgb), 0.08);
}

.card:hover::before { opacity: 1; inset-inline: 5%; }

.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-4);
}

.card-title {
  font-size: var(--fs-lg);
  color: var(--tx-0);
  margin: 0;
}

.card-desc {
  font-size: var(--fs-sm);
  color: var(--tx-2);
  line-height: var(--lh-body);
  margin: 0;
}

/* Icon tile — the square glass plate an icon sits on */
.icon-tile {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: var(--r-md);
  background: var(--glass-3);
  border: 1px solid var(--brd-2);
  color: var(--ac-1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14),
              0 4px 14px rgba(0, 0, 0, 0.3);
  transition: all var(--t-base);
}

.card:hover .icon-tile,
.glass--hover:hover .icon-tile {
  background: var(--ac-1-dim);
  border-color: var(--brd-accent);
  transform: translateY(-2px) scale(1.05);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
              0 0 26px rgba(var(--ac-1-rgb), 0.34);
}

.icon-tile--sm { width: 38px; height: 38px; border-radius: var(--r-sm); }
.icon-tile--lg { width: 60px; height: 60px; border-radius: var(--r-lg); }

.icon-tile--violet { color: var(--ac-2); }
.icon-tile--mint   { color: var(--ac-3); }

/* Brand logo tile — holds a downloaded simple-icons SVG.
   Logos arrive in their own brand colour; the tile normalises
   them so a mixed set still reads as one system. */
.logo-tile {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--r-sm);
  background: var(--glass-3);
  border: 1px solid var(--brd-2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: all var(--t-base);
}

.logo-tile img {
  width: 21px;
  height: 21px;
  /* Brand colours are muted at rest, full-strength on hover.
     Keeps a 28-logo grid from looking like a sticker sheet. */
  filter: grayscale(1) brightness(1.9) contrast(0.85);
  opacity: 0.68;
  transition: filter var(--t-base), opacity var(--t-base), transform var(--t-base);
}

.logo-tile svg { width: 21px; height: 21px; color: var(--tx-1); }

[data-theme='light'] .logo-tile img {
  filter: grayscale(1) brightness(0.55) contrast(1.1);
}

/* ═══════════════════════════════════════════════
   FEATURE LIST — checkmark rows
   ═══════════════════════════════════════════════ */
.feat-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.feat-row {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-size: var(--fs-sm);
  color: var(--tx-1);
  line-height: 1.55;
}

.feat-row strong { color: var(--tx-0); font-weight: 600; }

.feat-check {
  display: grid;
  place-items: center;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(var(--ac-3-rgb), 0.14);
  border: 1px solid rgba(var(--ac-3-rgb), 0.36);
  color: var(--ac-3);
}

.feat-check svg { width: 11px; height: 11px; stroke-width: 3; }

/* ═══════════════════════════════════════════════
   METRIC TILE — animated counters
   ═══════════════════════════════════════════════ */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: var(--sp-4);
}

.metric {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-6);
  border-radius: var(--r-lg);
  background: var(--surface-card);
  border: 1px solid var(--brd-1);
  box-shadow: var(--sh-sm), var(--sh-inset);
  transition: all var(--t-base);
}

.metric:hover {
  border-color: var(--brd-accent);
  transform: translateY(-4px);
  box-shadow: var(--sh-md), var(--sh-glow-1);
}

.metric-val {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 2.75rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: var(--ls-tight);
  color: var(--tx-0);
  font-variant-numeric: tabular-nums;
}

.metric-val .unit {
  font-size: 0.5em;
  color: var(--ac-1);
  margin-left: 0.1em;
  vertical-align: super;
}

.metric-lbl {
  font-family: var(--font-mono);
  font-size: var(--fs-3xs);
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--tx-2);
}

.metric-sub {
  font-size: var(--fs-xs);
  color: var(--tx-3);
}

/* ═══════════════════════════════════════════════
   FILTER RAIL — segmented control with a sliding
   indicator positioned from JS via CSS vars.
   ═══════════════════════════════════════════════ */
.filter-rail {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
  padding: var(--sp-2);
  border-radius: var(--r-full);
  background: var(--surface-well);
  border: 1px solid var(--brd-1);
  width: fit-content;
  max-width: 100%;
  margin-inline: auto;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* The pill that slides behind the active button */
.filter-rail::before {
  content: '';
  position: absolute;
  top: var(--sp-2);
  left: 0;
  height: calc(100% - var(--sp-2) * 2);
  width: var(--ind-w, 0px);
  transform: translateX(var(--ind-x, 0px));
  border-radius: var(--r-full);
  background: var(--grad-brand);
  box-shadow: 0 4px 16px rgba(var(--ac-1-rgb), 0.34);
  transition: transform var(--t-slow), width var(--t-slow), opacity var(--t-base);
  opacity: var(--ind-o, 0);
  pointer-events: none;
}

.filter-btn {
  position: relative;
  z-index: 1;
  padding: 0.62rem 1.15rem;
  border-radius: var(--r-full);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--tx-2);
  white-space: nowrap;
  transition: color var(--t-base);
}

.filter-btn:hover { color: var(--tx-0); }

.filter-btn.is-active {
  color: var(--tx-inv);
  font-weight: 700;
}

/* Filtered-out grid items */
.is-filtered {
  display: none !important;
}

/* ═══════════════════════════════════════════════
   FORMS
   ═══════════════════════════════════════════════ */
.field {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-bottom: var(--sp-5);
}

.field label {
  font-family: var(--font-mono);
  font-size: var(--fs-3xs);
  letter-spacing: var(--ls-caps);
  text-transform: uppercase;
  color: var(--tx-2);
  transition: color var(--t-fast);
}

.field:focus-within label { color: var(--ac-1); }

.input {
  width: 100%;
  padding: 0.9rem 1.1rem;
  border-radius: var(--r-md);
  background: var(--surface-input);
  border: 1px solid var(--brd-1);
  color: var(--tx-0);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  transition: border-color var(--t-fast), box-shadow var(--t-fast),
              background-color var(--t-fast);
}

.input::placeholder { color: var(--tx-3); }

.input:hover { border-color: var(--brd-2); }

.input:focus {
  outline: none;
  border-color: var(--ac-1);
  background: var(--glass-2);
  box-shadow: 0 0 0 3px rgba(var(--ac-1-rgb), 0.16),
              0 0 26px rgba(var(--ac-1-rgb), 0.12);
}

textarea.input {
  min-height: 150px;
  resize: vertical;
  line-height: 1.65;
}

select.input {
  cursor: pointer;
  appearance: none;
  /* Chevron drawn as an inline SVG so it recolours with the theme */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238A94AB' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px;
  padding-right: 2.75rem;
}

select.input option {
  background: var(--bg-3);
  color: var(--tx-0);
}

.input:user-invalid {
  border-color: var(--ac-4);
  box-shadow: 0 0 0 3px rgba(var(--ac-4-rgb), 0.14);
}

/* Form status message */
.form-status {
  display: none;
  margin-top: var(--sp-4);
  padding: var(--sp-4);
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  line-height: 1.55;
  border: 1px solid;
}

.form-status.is-shown { display: block; }

.form-status--ok {
  background: rgba(var(--ac-3-rgb), 0.1);
  border-color: rgba(var(--ac-3-rgb), 0.4);
  color: var(--ac-3);
}

.form-status--err {
  background: rgba(var(--ac-4-rgb), 0.1);
  border-color: rgba(var(--ac-4-rgb), 0.4);
  color: var(--ac-4);
}

/* ═══════════════════════════════════════════════
   MARQUEE — infinite horizontal scroll.
   The track holds two identical lists; translating
   exactly -50% makes the loop seamless.
   ═══════════════════════════════════════════════ */
.marquee {
  position: relative;
  overflow: hidden;
  padding-block: var(--sp-5);
  /* Fade both edges instead of hard-cutting the content */
  mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee var(--marquee-dur, 42s) linear infinite;
}

.marquee--reverse .marquee-track { animation-direction: reverse; }

.marquee:hover .marquee-track { animation-play-state: paused; }

.marquee-list {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  padding-right: var(--sp-8);
  flex-shrink: 0;
}

@keyframes marquee {
  to { transform: translate3d(-50%, 0, 0); }
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 1.6vw, 1.25rem);
  font-weight: 500;
  letter-spacing: var(--ls-snug);
  color: var(--tx-2);
  white-space: nowrap;
  transition: color var(--t-base);
}

.marquee-item:hover { color: var(--tx-0); }

.marquee-item img {
  width: 20px;
  height: 20px;
  filter: grayscale(1) brightness(1.8);
  opacity: 0.6;
  transition: all var(--t-base);
}

.marquee-item:hover img {
  filter: none;
  opacity: 1;
}

[data-theme='light'] .marquee-item img { filter: grayscale(1) brightness(0.5); }

.marquee-sep {
  color: var(--ac-1);
  opacity: 0.5;
  font-size: 0.7em;
}

@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
  .marquee {
    overflow-x: auto;
    mask-image: none;
    -webkit-mask-image: none;
  }
}

/* ═══════════════════════════════════════════════
   BREADCRUMB
   ═══════════════════════════════════════════════ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  color: var(--tx-3);
  letter-spacing: 0.05em;
}

.breadcrumb a {
  color: var(--tx-2);
  transition: color var(--t-fast);
}

.breadcrumb a:hover { color: var(--ac-1); }

.breadcrumb .sep { color: var(--tx-3); opacity: 0.55; }

.breadcrumb [aria-current] { color: var(--tx-1); }

/* ═══════════════════════════════════════════════
   QUOTE CARD
   ═══════════════════════════════════════════════ */
.quote {
  position: relative;
  font-size: var(--fs-md);
  line-height: 1.72;
  color: var(--tx-1);
  font-style: normal;
}

.quote strong { color: var(--tx-0); }

/* Oversized decorative opening mark */
.quote::before {
  content: '\201C';
  position: absolute;
  top: -0.5rem;
  left: -0.15em;
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: 1;
  color: var(--ac-1);
  opacity: 0.16;
  pointer-events: none;
}

.avatar {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--grad-brand);
  color: var(--tx-inv);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: 0.02em;
  box-shadow: 0 4px 16px rgba(var(--ac-1-rgb), 0.3);
}

.avatar--violet { background: var(--grad-brand-r); }

/* ═══════════════════════════════════════════════
   SCROLL PROGRESS + BACK TO TOP
   ═══════════════════════════════════════════════ */
#progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  transform: scaleX(var(--progress, 0));
  transform-origin: 0 50%;
  background: var(--grad-brand);
  box-shadow: 0 0 12px rgba(var(--ac-1-rgb), 0.7);
  z-index: 9000;
  pointer-events: none;
}

#to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 900;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--glass-solid);
  border: 1px solid var(--brd-2);
  color: var(--tx-1);
  backdrop-filter: blur(var(--blur-md));
  -webkit-backdrop-filter: blur(var(--blur-md));
  box-shadow: var(--sh-md);
  opacity: 0;
  transform: translateY(16px) scale(0.85);
  pointer-events: none;
  transition: all var(--t-base);
}

#to-top.is-shown {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

#to-top:hover {
  border-color: var(--brd-accent);
  color: var(--ac-1);
  transform: translateY(-3px);
  box-shadow: var(--sh-glow-1);
}

/* Mobile-only sticky CTA */
.mobile-cta {
  display: none;
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  z-index: 880;
  padding: var(--sp-3) var(--sp-4);
  padding-bottom: max(var(--sp-3), env(safe-area-inset-bottom));
  background: var(--glass-solid);
  border-top: 1px solid var(--brd-1);
  backdrop-filter: blur(var(--blur-lg));
  -webkit-backdrop-filter: blur(var(--blur-lg));
}

@media (max-width: 640px) {
  .mobile-cta { display: block; }
  body { padding-bottom: 76px; }
  #to-top { bottom: 88px; }
}