/* Bit 0100 Bit — marketing page styles (dark mode) */

:root.theme-dark {
  /* Dark mode tokens from design system (forced on) */
  --paper:       #0F0F0F;
  --paper-2:     #181818;
  --paper-sunk:  #0A0A0A;
  --parchment:   #181818;
  --elevated:    #1C1C1C;

  --ink:         #F5F5F5;
  --ink-2:       #C2C2C2;
  --ink-3:       #8C8C8C;
  --ink-4:       #5E5E5E;
  --ink-5:       #3A3A3A;
  --line:        #262626;
  --line-strong: #3D3D3D;
  --line-faint:  #1E1E1E;

  --signal:         #E07838;
  --signal-hover:   #EE8A48;
  --signal-active:  #F09A5C;
  --signal-tint:    rgba(224, 120, 56, 0.14);
  --signal-ring:    rgba(224, 120, 56, 0.38);

  --moss:  #7AB384;  --moss-tint:  rgba(122, 179, 132, 0.14);
  --ember: #E16A58;  --ember-tint: rgba(225, 106, 88, 0.14);
  --amber: #D9A34A;  --amber-tint: rgba(217, 163, 74, 0.14);
  --info:  #7B9BBF;  --info-tint:  rgba(123, 155, 191, 0.14);

  --fill-hover:  rgba(255, 255, 255, 0.06);
  --fill-active: rgba(255, 255, 255, 0.10);

  --shadow-1: 0 1px 2px rgba(0,0,0,0.32);
  --shadow-2: 0 2px 8px rgba(0,0,0,0.40), 0 1px 2px rgba(0,0,0,0.24);
  --shadow-3: 0 8px 32px rgba(0,0,0,0.52), 0 2px 6px rgba(0,0,0,0.32);
}

/* Truer-black variant */
:root.theme-dark.dark-true {
  --paper:      #000000;
  --paper-2:    #0A0A0A;
  --paper-sunk: #000000;
  --parchment:  #0A0A0A;
  --elevated:   #121212;
  --line:       #1F1F1F;
  --line-faint: #141414;
}
/* Warm-dark variant */
:root.theme-dark.dark-warm {
  --paper:      #120F0C;
  --paper-2:    #1A1613;
  --paper-sunk: #0C0A08;
  --parchment:  #1A1613;
  --elevated:   #1F1A16;
  --line:       #2A221C;
  --line-faint: #1F1A16;
  --ink-3:      #978672;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  overflow-x: hidden;
}

* { box-sizing: border-box; }

a { color: inherit; text-decoration: none; }

::selection { background: var(--signal-tint); color: var(--ink); }

/* Subtle grain on body */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  z-index: 0;
  background-image:
    radial-gradient(rgba(255,255,255,0.8) 1px, transparent 1px),
    radial-gradient(rgba(255,255,255,0.4) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 1px 2px;
  mix-blend-mode: screen;
}

/* =========================
   NAV
   ========================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: color-mix(in srgb, var(--paper) 70%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--w-wide);
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 15px;
}
.nav-brand .nav-wordmark { display: flex; align-items: baseline; gap: 6px; }
.nav-brand .nav-wordmark .mono { font-family: var(--font-mono); color: var(--signal); font-weight: 500; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.nav-link {
  padding: 6px 12px;
  border-radius: var(--r-sm);
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-text);
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: background var(--dur-micro) var(--ease-standard), color var(--dur-micro) var(--ease-standard);
}
.nav-link:hover { background: var(--fill-hover); color: var(--ink); }
.nav-link.active { color: var(--signal); }
.nav-spacer { flex: 1; }
.nav-kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}

/* =========================
   Container helpers
   ========================= */
.wrap {
  max-width: var(--w-wide);
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}
.wrap-content {
  max-width: var(--w-content);
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

/* =========================
   HERO
   ========================= */
.hero {
  padding: 96px 0 120px;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px 6px 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  margin-bottom: 32px;
  background: var(--paper-2);
}
.hero-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--moss);
  box-shadow: 0 0 8px var(--moss);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 7.5vw, 96px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 700;
  margin: 0 0 32px;
  color: var(--ink);
}
.hero-title .mono {
  font-family: var(--font-mono);
  color: var(--signal);
  font-weight: 600;
  letter-spacing: -0.02em;
}
.hero-title .dim { color: var(--ink-3); }
.hero-sub {
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 520px;
  margin: 0 0 40px;
  text-wrap: pretty;
}
.hero-meta {
  display: flex;
  gap: 32px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.02em;
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-meta-item .k { color: var(--ink-4); }
.hero-meta-item .v { color: var(--ink-2); }

/* Hero visual: giant animated 4-cell */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: 460px;
  margin-left: auto;
}
.hero-cells {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  width: 100%;
  height: 80%;
  position: relative;
  z-index: 2;
}
.hero-cell {
  background: transparent;
  border: 2px solid var(--line-strong);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
  transition: all var(--dur-ui) var(--ease-standard);
}
.hero-cell.on {
  background: var(--signal);
  border-color: var(--signal);
  box-shadow:
    0 0 32px rgba(224, 120, 56, 0.35),
    0 0 80px rgba(224, 120, 56, 0.15);
}
.hero-cell .scanline {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 50%, rgba(0,0,0,0.15) 50%);
  background-size: 100% 3px;
  mix-blend-mode: multiply;
  opacity: 0;
  transition: opacity var(--dur-ui) var(--ease-standard);
}
.hero-cell.on .scanline { opacity: 0.6; }

.hero-readout {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.05em;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.hero-readout .binary { color: var(--signal); font-weight: 600; }
.hero-readout .decimal { color: var(--ink-2); }

/* =========================
   SECTION DIVIDER — 0100 motif
   ========================= */
.divider-0100 {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 48px 0;
  max-width: var(--w-wide);
  margin: 0 auto;
}
.divider-line {
  flex: 1;
  height: 1px;
  background: var(--line);
}
.divider-cells {
  display: grid;
  grid-template-columns: repeat(4, 8px);
  gap: 4px;
}
.divider-cells .c { width: 8px; height: 8px; border-radius: 2px; background: var(--ink-5); }
.divider-cells .c.on { background: var(--signal); }

/* =========================
   SECTION HEADING
   ========================= */
.section {
  padding: 80px 0;
  position: relative;
}
.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 24px;
}
.section-eyebrow .num {
  color: var(--signal);
  font-weight: 600;
}
.section-eyebrow .bar {
  width: 24px;
  height: 1px;
  background: var(--line-strong);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 4vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 600;
  margin: 0 0 16px;
  max-width: 720px;
  text-wrap: balance;
}
.section-lead {
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 640px;
  margin: 0 0 48px;
  text-wrap: pretty;
}

/* =========================
   APPS INDEX GRID
   ========================= */
.apps-index {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.app-card {
  background: var(--elevated);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  color: inherit;
  position: relative;
  transition: all var(--dur-ui) var(--ease-standard);
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 220px;
}
.app-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}
.app-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  color: white;
  letter-spacing: -0.02em;
  box-shadow: var(--shadow-1), inset 0 1px 0 rgba(255,255,255,0.12);
}
.app-card-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
}
.app-card-tag {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.45;
  flex: 1;
}
.app-card-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
}
.app-card-status {
  position: absolute;
  top: 24px;
  right: 24px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 6px;
}
.app-card-status .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}
.status-shipping .dot { background: var(--moss); box-shadow: 0 0 6px var(--moss); }
.status-beta .dot { background: var(--amber); box-shadow: 0 0 6px var(--amber); }
.status-development .dot { background: var(--signal); box-shadow: 0 0 6px var(--signal); }
.status-concept .dot { background: var(--ink-4); }

.platform-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: var(--r-xs);
  color: var(--ink-3);
  background: var(--paper-2);
}

/* =========================
   APP DETAIL SECTION
   ========================= */
.app-detail {
  padding: 120px 0;
  position: relative;
  border-top: 1px solid var(--line);
}
.app-detail-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: var(--w-wide);
  margin: 0 auto;
  padding: 0 32px;
}
.app-detail.reverse .app-detail-inner { direction: rtl; }
.app-detail.reverse .app-detail-inner > * { direction: ltr; }

.app-detail-copy { min-width: 0; }
.app-detail-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.app-detail-index .bin { color: var(--signal); }

.app-detail-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
}
.app-detail-icon {
  width: 80px;
  height: 80px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 36px;
  color: white;
  letter-spacing: -0.02em;
  box-shadow: var(--shadow-2), inset 0 1px 0 rgba(255,255,255,0.15);
  flex-shrink: 0;
}
.app-detail-name {
  font-family: var(--font-display);
  font-size: 40px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 4px;
}
.app-detail-cat {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.app-detail-tag {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 16px;
  font-weight: 500;
  text-wrap: balance;
}
.app-detail-desc {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0 0 32px;
  max-width: 520px;
  text-wrap: pretty;
}

.app-features {
  list-style: none;
  padding: 0;
  margin: 0 0 40px;
  display: grid;
  gap: 12px;
  max-width: 520px;
}
.app-features li {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  align-items: baseline;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-2);
}
.app-features li::before {
  content: "";
  display: inline-grid;
  grid-template-columns: repeat(4, 3px);
  gap: 1px;
  width: 15px;
  height: 4px;
  background: repeating-linear-gradient(
    to right,
    var(--ink-5) 0 3px,
    transparent 3px 4px
  );
  transform: translateY(-2px);
}
.app-features li:nth-child(4n+2)::before {
  background:
    linear-gradient(to right,
      var(--ink-5) 0 3px, transparent 3px 4px,
      var(--signal) 4px 7px, transparent 7px 8px,
      var(--ink-5) 8px 11px, transparent 11px 12px,
      var(--ink-5) 12px 15px
    );
}

.app-detail-meta {
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.meta-block { }
.meta-block .k {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-4);
  display: block;
  margin-bottom: 4px;
}
.meta-block .v {
  font-size: 14px;
  color: var(--ink-2);
  font-family: var(--font-mono);
}

/* App mockup area (right column) */
.app-mockup {
  aspect-ratio: 4 / 5;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-2);
  min-height: 420px;
}
.app-mockup-chrome {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  background: var(--paper-sunk);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  z-index: 2;
}
.app-mockup-chrome .dots { display: flex; gap: 5px; }
.app-mockup-chrome .dots span {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--line-strong);
}
.app-mockup-label {
  flex: 1;
  text-align: center;
  letter-spacing: 0.05em;
}
.app-mockup-body {
  position: absolute;
  inset: 44px 0 0 0;
  padding: 24px;
  overflow: hidden;
}

/* Per-app tints (signal mixes) */
.tint-dirigo { background: linear-gradient(135deg, #C85A1E 0%, #E07838 100%); }
.tint-streamphile { background: linear-gradient(135deg, #2D4B6B 0%, #7B9BBF 100%); }
.tint-modplayer { background: linear-gradient(135deg, #2F5D3C 0%, #7AB384 100%); }
.tint-technitium { background: linear-gradient(135deg, #3A3A3A 0%, #666666 100%); }

/* =========================
   ABOUT
   ========================= */
.about {
  padding: 120px 0;
  border-top: 1px solid var(--line);
  position: relative;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
}
.about-stats {
  display: grid;
  gap: 32px;
  align-self: start;
  position: sticky;
  top: 100px;
}
.stat {
  border-left: 2px solid var(--signal);
  padding: 4px 0 4px 20px;
}
.stat .n {
  font-family: var(--font-display);
  font-size: 48px;
  line-height: 1;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: var(--ink);
  display: block;
  margin-bottom: 8px;
}
.stat .l {
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.4;
}

.about-body p {
  font-size: 19px;
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0 0 24px;
  max-width: 640px;
  text-wrap: pretty;
}
.about-body p strong {
  color: var(--ink);
  font-weight: 600;
}
.about-body .mono {
  font-family: var(--font-mono);
  color: var(--signal);
  font-weight: 500;
}
.about-body p.reading {
  font-size: 17px;
  color: var(--ink-3);
}

/* =========================
   FOOTER
   ========================= */
.footer {
  padding: 80px 0 48px;
  border-top: 1px solid var(--line);
  background: var(--paper-sunk);
  position: relative;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--line);
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 320px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-3);
  margin: 0;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin: 0 0 16px;
  font-weight: 600;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  font-size: 14px;
  color: var(--ink-2);
  transition: color var(--dur-micro) var(--ease-standard);
  cursor: pointer;
}
.footer-col a:hover { color: var(--signal); }
.footer-bottom {
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
  letter-spacing: 0.04em;
}
.footer-bottom .legal { display: flex; gap: 24px; }

/* =========================
   TWEAKS PANEL
   ========================= */
.tweaks {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 280px;
  background: var(--elevated);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-3);
  z-index: 100;
  font-family: var(--font-text);
  overflow: hidden;
}
.tweaks-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--paper-sunk);
}
.tweaks-title {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}
.tweaks-body { padding: 16px; display: flex; flex-direction: column; gap: 16px; }
.tweak-row { display: flex; flex-direction: column; gap: 8px; }
.tweak-row label {
  font-size: 12px;
  color: var(--ink-2);
  font-weight: 500;
}
.tweak-row .opts {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 4px;
  padding: 3px;
  background: var(--paper-sunk);
  border-radius: var(--r-sm);
}
.tweak-row .opts button {
  padding: 6px 8px;
  background: transparent;
  border: 0;
  color: var(--ink-3);
  font-family: var(--font-text);
  font-size: 12px;
  cursor: pointer;
  border-radius: var(--r-xs);
  transition: all var(--dur-micro) var(--ease-standard);
}
.tweak-row .opts button.active {
  background: var(--elevated);
  color: var(--ink);
  box-shadow: var(--shadow-1);
}
.tweak-row input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  height: 4px;
  background: var(--line);
  border-radius: 2px;
  outline: none;
}
.tweak-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  background: var(--signal);
  border-radius: 50%;
  cursor: pointer;
}
.tweak-row input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; background: var(--signal); border-radius: 50%; cursor: pointer; border: 0;
}
.tweak-value {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
}

/* =========================
   Focus ring
   ========================= */
button:focus-visible, a:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
  border-radius: 4px;
}

/* =========================
   Keyboard hint overlay
   ========================= */
.kbd-hint {
  position: fixed;
  bottom: 24px;
  left: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--elevated);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  z-index: 90;
  opacity: 0.7;
}
.kbd-hint kbd {
  background: var(--paper-sunk);
  border: 1px solid var(--line);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 10px;
  color: var(--ink-2);
}

/* =========================
   Responsive
   ========================= */
@media (max-width: 980px) {
  .hero-grid, .app-detail-inner, .about-grid, .footer-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .app-detail.reverse .app-detail-inner { direction: ltr; }
  .apps-index { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .about-stats { position: static; grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-visual { max-width: 360px; margin: 0 auto; }
}
@media (max-width: 600px) {
  .apps-index { grid-template-columns: 1fr; }
  .wrap, .wrap-content, .nav-inner, .app-detail-inner { padding-left: 20px; padding-right: 20px; }
  .hero { padding: 64px 0 80px; }
  .section, .app-detail, .about { padding: 64px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .tweaks { width: calc(100% - 32px); right: 16px; left: 16px; bottom: 16px; }
  .kbd-hint { display: none; }
}

/* Fade-in animations for sections */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}
.reveal {
  opacity: 0;
  animation: fadeInUp 0.8s var(--ease-standard) forwards;
}
.reveal[data-visible="true"] { animation-play-state: running; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; animation: none; }
  .hero-cell, .app-card, .nav-link { transition: none; }
}


/* ==========================================
   Hero: Wordmark variant
   ========================================== */
.hero-wordmark {
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
}
.hw-stack {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
  position: relative;
  z-index: 2;
}
.hw-mark { }
.hw-cells {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  width: 280px;
}
.hw-cell {
  aspect-ratio: 1 / 1;
  border: 2px solid var(--line-strong);
  border-radius: 12px;
  transition: all var(--dur-ui) var(--ease-standard);
  position: relative;
}
.hw-cell.on {
  background: var(--signal);
  border-color: var(--signal);
}
.hw-wordmark {
  font-family: var(--font-display);
  font-size: clamp(56px, 10vw, 136px);
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 0.15em;
  color: var(--ink);
}
.hw-wordmark .mono {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.8em;
  letter-spacing: 0;
}
.hw-wordmark .amber { color: var(--signal); }
.hw-tag {
  font-size: 22px;
  color: var(--ink-2);
  margin: 0;
  max-width: 520px;
  letter-spacing: -0.01em;
}
.hw-meta {
  display: flex;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.hw-meta .sep { opacity: 0.5; }

/* ==========================================
   Hero: Terminal variant
   ========================================== */
.hero-terminal {
  min-height: 90vh;
  padding: 100px 0 60px;
  display: flex;
  align-items: center;
  background: var(--paper-sunk);
}
.ht-window {
  max-width: 860px;
  margin: 0 auto;
  background: #0A0806;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  box-shadow: var(--shadow-3);
  overflow: hidden;
  position: relative;
  z-index: 2;
}
.ht-chrome {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #141210;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
}
.ht-chrome .dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.ht-chrome .dot.r { background: #FF5F57; }
.ht-chrome .dot.y { background: #FEBC2E; }
.ht-chrome .dot.g { background: #28C840; }
.ht-chrome .ht-title {
  margin-left: 16px;
  letter-spacing: 0.02em;
}
.ht-body {
  padding: 24px 28px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  color: var(--signal);
  min-height: 320px;
  position: relative;
}
.ht-body::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0,0,0,0) 0px,
    rgba(0,0,0,0) 2px,
    rgba(0,0,0,0.15) 3px,
    rgba(0,0,0,0.15) 3px
  );
  opacity: 0.4;
}
.ht-line { display: block; }
.ht-prompt { color: var(--signal); opacity: 0.7; }
.ht-cmd { color: var(--parchment); }
.ht-out { color: var(--parchment); opacity: 0.85; padding-left: 0; }
.ht-out.amber { color: var(--signal); font-weight: 600; font-size: 22px; letter-spacing: 0.2em; }
.ht-cursor {
  display: inline-block;
  color: var(--signal);
  animation: tcursor 1s steps(2) infinite;
  margin-left: 2px;
}
@keyframes tcursor {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}
.ht-footer {
  max-width: 860px;
  margin: 40px auto 0;
  text-align: center;
}
.ht-wordmark {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--ink-2);
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-content: center;
  width: 100%;
}
.ht-wordmark .mono { font-family: var(--font-mono); }
.ht-wordmark .amber { color: var(--signal); }
.ht-wordmark .ht-sep {
  margin-left: 16px;
  padding-left: 16px;
  border-left: 1px solid var(--line);
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ==========================================
   Binary rails (heavy motif)
   ========================================== */
.binary-rail {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-around;
  padding: 80px 0 40px;
  pointer-events: none;
  z-index: 5;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  opacity: 0.35;
  overflow: hidden;
  background: linear-gradient(
    90deg,
    var(--paper) 0%,
    transparent 100%
  );
  transition: opacity var(--dur-ui) var(--ease-standard);
}
.binary-rail.rail-right {
  left: auto;
  right: 0;
  background: linear-gradient(
    -90deg,
    var(--paper) 0%,
    transparent 100%
  );
}
.binary-rail.rail-left { left: 0; }
.binary-rail span {
  display: block;
  line-height: 1.4;
  letter-spacing: 0.1em;
  transition: color 0.8s var(--ease-standard), opacity 0.8s var(--ease-standard);
  opacity: 0.6;
}
.binary-rail span.on {
  color: var(--signal);
  opacity: 1;
}

/* ==========================================
   Heavy divider variant
   ========================================== */
.divider-0100.heavy {
  position: relative;
}
.divider-0100.heavy .divider-binary {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translate(-50%, -12px);
  display: flex;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  opacity: 0.4;
  letter-spacing: 0.1em;
  padding: 4px 12px;
  white-space: nowrap;
}

/* ==========================================
   Privacy pledge emphasis
   ========================================== */
.privacy-pledge {
  border-left: 2px solid var(--signal);
  padding: 8px 0 8px 20px;
  margin: 24px 0 !important;
  background: linear-gradient(
    90deg,
    rgba(224, 120, 56, 0.04) 0%,
    transparent 100%
  );
}
.privacy-pledge strong {
  color: var(--ink);
  font-weight: 600;
}
.privacy-pledge .mono.amber {
  color: var(--signal);
  font-weight: 600;
}

@media (max-width: 900px) {
  .binary-rail { display: none; }
  .ht-window { margin: 0 16px; }
  .hw-wordmark { font-size: 56px; }
}


/* ==========================================
   Studio teaser (home page card)
   ========================================== */
.studio-teaser {
  padding: 100px 0;
}
.st-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 60px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper-2);
  position: relative;
  overflow: hidden;
}
.st-grid::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224,120,56,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.st-copy .section-title {
  font-size: clamp(36px, 4vw, 52px);
  margin: 16px 0 20px;
  line-height: 1.05;
  letter-spacing: -0.025em;
}
.st-copy .section-lead {
  color: var(--ink-2);
  font-size: 17px;
  line-height: 1.6;
  margin-bottom: 28px;
  max-width: 500px;
}
.st-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 40px;
  position: relative;
  z-index: 2;
}
.st-legend {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--ink-3);
  display: flex;
  gap: 10px;
  align-items: center;
}
.st-legend .sep { opacity: 0.5; }
.st-legend .amber { color: var(--signal); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  text-decoration: none;
  transition: all var(--dur-ui) var(--ease-standard);
  cursor: pointer;
}
.btn-ghost:hover {
  border-color: var(--signal);
  color: var(--signal);
  background: rgba(224,120,56,0.06);
}
.btn-ghost .arrow {
  transition: transform var(--dur-ui) var(--ease-standard);
}
.btn-ghost:hover .arrow {
  transform: translateX(4px);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: var(--signal);
  color: #0A0806;
  border: 1px solid var(--signal);
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all var(--dur-ui) var(--ease-standard);
  cursor: pointer;
}
.btn-primary:hover {
  background: var(--signal-bright, #E88A4A);
  border-color: var(--signal-bright, #E88A4A);
  transform: translateY(-1px);
}

/* ==========================================
   Individual page layouts (apps/studio/contact)
   ========================================== */
.page-hero {
  padding: 140px 0 60px;
  border-bottom: 1px solid var(--line-faint);
  background: var(--paper-sunk);
  position: relative;
}
.page-hero .wrap {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
  align-items: center;
}
.page-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.page-hero-eyebrow a {
  color: var(--ink-3);
  text-decoration: none;
  transition: color 0.15s;
}
.page-hero-eyebrow a:hover { color: var(--signal); }
.page-hero-eyebrow .sep { opacity: 0.4; }

.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 88px);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 0.98;
  margin: 0 0 24px;
  color: var(--ink);
}
.page-hero-sub {
  font-size: 22px;
  color: var(--ink-2);
  line-height: 1.45;
  margin: 0 0 32px;
  max-width: 600px;
  letter-spacing: -0.01em;
}
.page-hero-meta {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin-top: 8px;
}
.page-hero-meta .k { opacity: 0.6; margin-right: 8px; }
.page-hero-meta .v { color: var(--ink); font-weight: 500; }

.page-hero-icon {
  display: flex;
  justify-content: center;
  align-items: center;
}
.page-hero-icon .big-icon {
  width: 200px;
  height: 200px;
  border-radius: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 96px;
  font-weight: 700;
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-3);
}

.page-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--line-faint);
}
.page-section:last-of-type { border-bottom: none; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  margin-bottom: 40px;
  transition: color 0.15s;
}
.back-link:hover { color: var(--signal); }

.next-prev-nav {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  gap: 24px;
  padding: 60px 0 100px;
}
.next-prev-nav a {
  flex: 1;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
  color: var(--ink);
  background: var(--paper-2);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all var(--dur-ui) var(--ease-standard);
}
.next-prev-nav a:hover {
  border-color: var(--signal);
  transform: translateY(-1px);
}
.next-prev-nav .label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-3);
}
.next-prev-nav .name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.next-prev-nav .next { text-align: right; }

/* Privacy / terms inline sections */
.policy {
  max-width: 720px;
  margin: 0 auto;
}
.policy h3 {
  font-size: 22px;
  margin: 40px 0 12px;
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.policy h3:first-child { margin-top: 0; }
.policy p { color: var(--ink-2); line-height: 1.7; margin: 0 0 16px; }
.policy .mono { font-family: var(--font-mono); color: var(--signal); }

/* Contact card grid */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin: 40px 0 60px;
}
.contact-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-2);
  transition: all var(--dur-ui) var(--ease-standard);
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.contact-card:hover {
  border-color: var(--signal);
  transform: translateY(-2px);
}
.contact-card .label {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-3);
}
.contact-card .value {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.contact-card .detail {
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.5;
}

@media (max-width: 800px) {
  .st-grid { grid-template-columns: 1fr; gap: 40px; padding: 40px 28px; }
  .page-hero .wrap { grid-template-columns: 1fr; }
  .page-hero-icon { order: -1; }
  .next-prev-nav { flex-direction: column; padding: 40px 0 60px; }
  .contact-grid { grid-template-columns: 1fr; }
}