/* Voltron Digital — static foundation, app-ready tokens */

:root {
  --font: "Geist Sans", "Geist", system-ui, -apple-system, sans-serif;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --header-h: 72px;
  --bottom-nav-h: 76px;
  --transition: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  --scroll-ease: 1.1s cubic-bezier(0.22, 1, 0.36, 1);
  --celestial-top: 12%;
  --celestial-right: 18%;
  --celestial-size: clamp(72px, 14vw, 120px);
}

[data-theme="day"] {
  --text: #1a1f2e;
  --text-muted: rgba(26, 31, 46, 0.72);
  --text-on-glass: #1a1f2e;
  --accent: #e86f2a;
  --accent-soft: rgba(232, 111, 42, 0.18);
  --glass-bg: rgba(255, 255, 255, 0.82);
  --glass-border: rgba(255, 255, 255, 0.65);
  --glass-shadow: 0 18px 48px rgba(26, 31, 46, 0.12);
  --btn-primary-bg: #1a1f2e;
  --btn-primary-text: #fff;
  --nav-bg: rgba(255, 255, 255, 0.55);
  --sky-top: #7ec8e8;
  --sky-mid: #f5b88a;
  --sky-bottom: #f9d4a8;
  --sun-opacity: 1;
  --moon-opacity: 0;
  --stars-opacity: 0;
  --galaxy-opacity: 0;
}

[data-theme="night"] {
  --text: #f4f6fb;
  --text-muted: rgba(244, 246, 251, 0.72);
  --text-on-glass: #f4f6fb;
  --accent: #4ade80;
  --accent-soft: rgba(74, 222, 128, 0.16);
  --glass-bg: rgba(18, 28, 52, 0.62);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
  --btn-primary-bg: #3b82f6;
  --btn-primary-text: #fff;
  --nav-bg: rgba(12, 8, 28, 0.78);
  --sky-top: #12081f;
  --sky-mid: #2a1454;
  --sky-bottom: #1a0f2e;
  --sun-opacity: 0;
  --moon-opacity: 1;
  --stars-opacity: 1;
  --galaxy-opacity: 1;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-timeline: --page-scroll block;
  }
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font);
  font-feature-settings: "ss01" 1, "cv01" 1;
  letter-spacing: -0.015em;
  color: var(--text);
  background: var(--sky-bottom);
  line-height: 1.5;
  overflow-x: hidden;
  transition: color var(--transition);
}

/* Atmospheric background */
.scene {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.sky {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    var(--sky-top) 0%,
    var(--sky-mid) 42%,
    var(--sky-bottom) 100%
  );
  transition: background 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.galaxy {
  position: absolute;
  inset: -10% -5%;
  opacity: var(--galaxy-opacity);
  transition: opacity 1.2s ease;
  pointer-events: none;
  will-change: transform;
  background:
    radial-gradient(ellipse 55% 40% at 72% 18%, rgba(255, 120, 55, 0.45), transparent 58%),
    radial-gradient(ellipse 48% 38% at 28% 28%, rgba(168, 85, 247, 0.42), transparent 55%),
    radial-gradient(ellipse 40% 35% at 58% 52%, rgba(236, 72, 153, 0.22), transparent 50%),
    radial-gradient(ellipse 50% 42% at 88% 68%, rgba(251, 146, 60, 0.32), transparent 52%),
    radial-gradient(ellipse 35% 30% at 15% 62%, rgba(124, 58, 237, 0.28), transparent 48%);
  filter: blur(2px);
  mix-blend-mode: screen;
}

[data-parallax] {
  transition: transform 0.1s linear;
  will-change: transform;
}

.celestial-slot {
  position: absolute;
  top: var(--celestial-top);
  right: var(--celestial-right);
  width: var(--celestial-size);
  height: var(--celestial-size);
}

.celestial {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1), transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.sun {
  background: radial-gradient(circle at 35% 35%, #fff6c8, #f5c842 55%, #e8a020);
  box-shadow: 0 0 60px rgba(245, 200, 66, 0.55);
  opacity: var(--sun-opacity);
}

.moon {
  opacity: var(--moon-opacity);
  background: transparent;
  box-shadow: none;
}

.moon::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 32%, #fff 0%, #eef2fb 55%, #d4dcf0 100%);
  box-shadow: 0 0 55px rgba(220, 235, 255, 0.5);
}

.moon::after {
  content: "";
  position: absolute;
  top: 4%;
  right: -24%;
  width: 90%;
  height: 90%;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #3d2068 0%, #1a0f2e 70%);
  box-shadow: inset 0 0 24px rgba(168, 85, 247, 0.4);
}

.stars {
  position: absolute;
  inset: 0;
  opacity: var(--stars-opacity);
  transition: opacity 1.2s ease;
  will-change: transform;
}

.stars--far {
  background-image:
    radial-gradient(1px 1px at 8% 14%, rgba(255, 255, 255, 0.9) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 22% 8%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 38% 22%, rgba(255, 255, 255, 0.75) 50%, transparent 50%),
    radial-gradient(1px 1px at 52% 11%, #fff 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 68% 19%, rgba(255, 255, 255, 0.85) 50%, transparent 50%),
    radial-gradient(1px 1px at 84% 12%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 15% 38%, rgba(255, 255, 255, 0.7) 50%, transparent 50%),
    radial-gradient(1px 1px at 44% 44%, #fff 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 76% 36%, rgba(255, 255, 255, 0.8) 50%, transparent 50%),
    radial-gradient(1px 1px at 91% 48%, #fff 50%, transparent 50%);
  animation: twinkle-far 6s ease-in-out infinite alternate;
}

.stars--near {
  background-image:
    radial-gradient(2px 2px at 18% 26%, rgba(255, 240, 200, 0.95) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 33% 16%, #fff 50%, transparent 50%),
    radial-gradient(2px 2px at 61% 28%, rgba(200, 220, 255, 0.9) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 79% 22%, #fff 50%, transparent 50%),
    radial-gradient(2px 2px at 12% 52%, rgba(255, 255, 255, 0.85) 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 48% 58%, #fff 50%, transparent 50%),
    radial-gradient(2px 2px at 72% 50%, rgba(255, 230, 180, 0.9) 50%, transparent 50%);
  animation: twinkle-near 4.5s ease-in-out infinite alternate;
}

@keyframes twinkle-far {
  from { opacity: 0.55; }
  to { opacity: 1; }
}

@keyframes twinkle-near {
  from { opacity: 0.7; transform: scale(1); }
  to { opacity: 1; transform: scale(1.02); }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 4vw, 2.5rem);
  min-height: var(--header-h);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition), border-color var(--transition);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 500;
  font-size: 1.02rem;
  letter-spacing: -0.035em;
}

.brand__mark {
  display: flex;
  flex-shrink: 0;
  width: 34px;
  height: 28px;
}

.brand__logo {
  width: 100%;
  height: 100%;
  display: block;
  filter: drop-shadow(0 2px 10px rgba(99, 102, 241, 0.4));
}

.brand__name {
  font-weight: 500;
  letter-spacing: -0.04em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.35rem 0.3rem 0.65rem;
  border-radius: 999px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.55rem;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--accent-soft);
}

.site-nav a.is-active {
  color: var(--text);
  background: var(--accent-soft);
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.45rem 0.3rem 0.3rem;
  margin-left: 0.15rem;
  border: none;
  border-left: 1px solid var(--glass-border);
  border-radius: 0 999px 999px 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 0.75rem;
  font-weight: 600;
}

.theme-toggle__track {
  display: block;
  width: 44px;
  height: 26px;
  border-radius: 999px;
  background: var(--accent-soft);
  position: relative;
  transition: background var(--transition);
}

.theme-toggle__thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  transition: transform var(--transition), background var(--transition);
}

[data-theme="night"] .theme-toggle__thumb {
  transform: translateX(18px);
}

/* Main layout */
main {
  width: min(1080px, 100%);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem) calc(var(--bottom-nav-h) + 2rem);
}

@media (prefers-reduced-motion: no-preference) {
  main {
    scroll-snap-type: y proximity;
  }
}

section {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
}

.scroll-section {
  scroll-snap-align: start;
  min-height: min(88vh, 900px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scroll-section > .section-head,
.scroll-section > .hero__greeting,
.scroll-section > .hero__title,
.scroll-section > .hero__date,
.scroll-section > .hero__lead,
.scroll-section > .hero__actions,
.scroll-section > .card-grid,
.scroll-section > .timeline,
.scroll-section > .coming-soon {
  opacity: 0;
  transform: translate3d(0, 48px, 0);
  filter: blur(6px);
  transition:
    opacity var(--scroll-ease),
    transform var(--scroll-ease),
    filter var(--scroll-ease);
  transition-delay: calc(var(--reveal-i, 0) * 0.08s);
}

.scroll-section.is-visible > .section-head,
.scroll-section.is-visible > .hero__greeting,
.scroll-section.is-visible > .hero__title,
.scroll-section.is-visible > .hero__date,
.scroll-section.is-visible > .hero__lead,
.scroll-section.is-visible > .hero__actions,
.scroll-section.is-visible > .card-grid,
.scroll-section.is-visible > .timeline,
.scroll-section.is-visible > .coming-soon,
.scroll-section.is-visible .glass-card {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  filter: blur(0);
}

.scroll-section .glass-card {
  opacity: 0;
  transform: translate3d(0, 36px, 0);
  filter: blur(4px);
  transition:
    opacity var(--scroll-ease),
    transform var(--scroll-ease),
    filter var(--scroll-ease),
    background var(--transition),
    border-color var(--transition);
  transition-delay: calc(var(--card-i, 0) * 0.1s + 0.12s);
}

.hero.scroll-section {
  min-height: min(92vh, 960px);
}

.contact.scroll-section {
  min-height: auto;
  justify-content: flex-start;
  padding-bottom: clamp(3rem, 8vw, 5rem);
}

.hero.scroll-section > * {
  --reveal-i: 0;
}

.hero.scroll-section > .hero__title { --reveal-i: 1; }
.hero.scroll-section > .hero__date { --reveal-i: 2; }
.hero.scroll-section > .hero__lead { --reveal-i: 3; }
.hero.scroll-section > .hero__actions { --reveal-i: 4; }

/* Left-hand scroll rail */
.scroll-rail {
  position: fixed;
  top: 50%;
  left: clamp(0.65rem, 2vw, 1.25rem);
  z-index: 90;
  transform: translateY(-50%);
  display: none;
  flex-direction: row-reverse;
  align-items: stretch;
  gap: 0.75rem;
  padding: 0.35rem 0;
}

.scroll-rail__track {
  position: relative;
  width: 3px;
  border-radius: 999px;
  background: var(--glass-border);
  overflow: hidden;
  min-height: clamp(280px, 40vh, 340px);
  align-self: stretch;
}

.scroll-rail__fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  border-radius: inherit;
  background: linear-gradient(180deg, var(--accent), var(--btn-primary-bg));
  box-shadow: 0 0 12px var(--accent-soft);
  transition: height 0.15s ease-out;
}

.scroll-rail__markers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: clamp(280px, 40vh, 340px);
}

.scroll-rail__markers a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.25s ease;
}

.scroll-rail__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid var(--glass-border);
  background: transparent;
  transition:
    transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
    background 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease;
  flex-shrink: 0;
}

.scroll-rail__label {
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  white-space: nowrap;
  order: -1;
}

.scroll-rail__markers a:hover .scroll-rail__label,
.scroll-rail__markers a.is-active .scroll-rail__label {
  opacity: 1;
  transform: translateX(0);
}

.scroll-rail__markers a.is-active .scroll-rail__dot {
  transform: scale(1.35);
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 14px var(--accent-soft);
}

.scroll-rail__markers a.is-active {
  color: var(--text);
}

/* Hero */
.hero {
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
}

.hero__greeting {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.hero__title {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 6vw, 3.25rem);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.hero__date {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.hero__lead {
  margin: 0 0 1.75rem;
  max-width: 36ch;
  font-size: clamp(1rem, 2.5vw, 1.125rem);
  color: var(--text-muted);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.btn:active { transform: scale(0.98); }

.btn--primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

.btn--ghost {
  background: var(--glass-bg);
  color: var(--text);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
}

.btn--full { width: 100%; }

/* Section headings */
.section-head {
  margin-bottom: 1.5rem;
}

.section-head h2 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.section-head p {
  margin: 0;
  color: var(--text-muted);
}

/* Glass cards */
.card-grid {
  display: grid;
  gap: 1rem;
}

.glass-card {
  position: relative;
  padding: 1.35rem 1.35rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: var(--text-on-glass);
  transition: background var(--transition), border-color var(--transition), transform 0.2s;
}

.glass-card:hover {
  transform: translateY(-2px);
}

.glass-card__icon {
  width: 44px;
  height: 44px;
  margin-bottom: 0.85rem;
  padding: 10px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
}

.glass-card__icon svg {
  width: 100%;
  height: 100%;
}

.glass-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.glass-card > p {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.glass-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.glass-card__list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-top: 1px solid var(--glass-border);
}

.glass-card__list li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.case-studies.scroll-section {
  min-height: auto;
  justify-content: flex-start;
}

.case-study-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 300px));
  gap: 1rem;
  width: 100%;
}

.case-study {
  padding: 0;
  overflow: hidden;
  max-width: 300px;
}

.case-study__link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.case-study__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.25);
}

.case-study__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.case-study__link:hover .case-study__img {
  transform: scale(1.03);
}

.case-study__visit {
  position: absolute;
  right: 0.65rem;
  bottom: 0.65rem;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.case-study__link:hover .case-study__visit,
.case-study__link:focus-visible .case-study__visit {
  opacity: 1;
  transform: translateY(0);
}

.case-study__body {
  padding: 0.9rem 1rem 0.85rem;
}

.case-study__tag {
  display: inline-block;
  margin-bottom: 0.35rem;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}

.case-study__body h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.03em;
}

.case-study__body > p {
  margin: 0 0 0.65rem;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.case-study .glass-card__list li {
  padding: 0.3rem 0;
  font-size: 0.78rem;
}

.scroll-section > .case-study-grid {
  opacity: 0;
  transform: translate3d(0, 48px, 0);
  filter: blur(6px);
  transition:
    opacity var(--scroll-ease),
    transform var(--scroll-ease),
    filter var(--scroll-ease);
}

.scroll-section.is-visible > .case-study-grid {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  filter: blur(0);
}

.industry-card__tag {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--glass-border);
}

/* Timeline / work section */
.timeline {
  padding: 1.25rem 1.25rem 1rem;
}

.timeline__item {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--glass-border);
}

.timeline__item:last-of-type { border-bottom: none; }

.timeline__time {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  padding-top: 0.15rem;
}

.timeline__item h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.timeline__item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.fab {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 14px;
  background: var(--btn-primary-bg);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: transform 0.15s;
}

.fab svg { width: 22px; height: 22px; }
.fab:hover { transform: scale(1.05); }

/* Coming soon */
.coming-soon {
  max-width: 480px;
}

.coming-soon__eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.coming-soon h2 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.02em;
}

.coming-soon > p:last-child {
  margin: 0;
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 38ch;
}

/* Bottom nav (mobile) */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-around;
  align-items: center;
  min-height: var(--bottom-nav-h);
  padding: 0.5rem 1rem env(safe-area-inset-bottom, 0.5rem);
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  transition: background var(--transition);
}

.bottom-nav__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.35rem 0.55rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.62rem;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  position: relative;
}

.bottom-nav__link svg {
  width: 22px;
  height: 22px;
}

.bottom-nav__link.is-active {
  color: var(--text);
}

.bottom-nav__link.is-active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

/* Responsive */
@media (min-width: 720px) {
  .site-nav a {
    font-size: 0.85rem;
    padding: 0.45rem 0.7rem;
  }

  .case-study-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 280px));
    gap: 1.1rem;
  }

  .case-study {
    max-width: 280px;
  }

  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .bottom-nav { display: none; }

  .scroll-rail {
    display: flex;
  }

  main {
    padding-bottom: 3rem;
    padding-left: 3.75rem;
  }
}

@media (max-width: 479px) {
  .site-nav a {
    font-size: 0.72rem;
    padding: 0.35rem 0.4rem;
  }

  .theme-toggle__label {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }

  html { scroll-behavior: auto; }

  main { scroll-snap-type: none; }

  .scroll-section > *,
  .scroll-section .glass-card {
    opacity: 1 !important;
    transform: none !important;
    filter: none !important;
  }

  [data-parallax] { transform: none !important; }
}