/* ---------- Proton Photos — shared styles ---------- */

:root {
  --bg: #07080a;
  --bg-2: #0c0e12;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f3f4f6;
  --text-dim: #c9cdd4;
  --muted: #8a8f99;
  --muted-2: #5f636c;
  --accent: oklch(0.72 0.16 295);
  --accent-soft: oklch(0.72 0.16 295 / 0.14);
  --accent-line: oklch(0.72 0.16 295 / 0.4);
  --danger: oklch(0.72 0.16 25);
  --radius: 14px;
  --radius-lg: 22px;
  --max: 1240px;
  --font-sans: 'Manrope', ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  /* glass surfaces */
  --glass-nav:  rgba(12, 14, 18, 0.65);
  --glass-card: rgba(10, 12, 16, 0.55);
  /* misc */
  --dot-inactive:    rgba(255,255,255,0.16);
  --grid-dot:        rgba(255,255,255,0.025);
  --scrollbar-thumb: rgba(255,255,255,0.15);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  isolation: isolate;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }

/* ---------- background field ---------- */
.bg-field {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 700px at 80% -10%, oklch(0.72 0.16 295 / 0.10), transparent 60%),
    radial-gradient(700px 600px at -10% 30%, oklch(0.72 0.16 295 / 0.07), transparent 60%),
    var(--bg);
  overflow: hidden;
}
.bg-field::before {
  content: "";
  position: absolute;
  inset: -10%;
  background-image:
    radial-gradient(circle at 1px 1px, var(--grid-dot) 1px, transparent 0);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.bg-field svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ---------- container + layout ---------- */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}
.container-narrow {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 28px;
}

section { position: relative; }

/* ---------- navbar ---------- */
.nav {
  position: sticky;
  top: 14px;
  z-index: 50;
  margin: 14px auto 0;
  max-width: 1100px;
  padding: 0 18px;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 14px 10px 18px;
  background: var(--glass-nav);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.04);
  will-change: background, border-color, box-shadow;
  transition:
    background 0.25s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.25s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.25s cubic-bezier(0.22, 1, 0.36, 1);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.nav-brand .logo {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,0.18), transparent 60%),
    linear-gradient(135deg, oklch(0.85 0.10 165), oklch(0.55 0.12 200));
  position: relative;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.18), 0 6px 18px oklch(0.55 0.12 200 / 0.35);
}
.nav-brand .logo::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  border: 1.5px solid rgba(0,0,0,0.55);
  background: radial-gradient(circle, rgba(255,255,255,0.65), transparent 50%);
}
.nav-star {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
}
.nav-links {
  display: flex;
  gap: 6px;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--text-dim);
  transition: background 0.15s, color 0.15s;
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-links a.active { color: var(--text); background: var(--surface-2); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--text);
  color: #0a0a0c;
  font-weight: 600;
  font-size: 13.5px;
  border: 1px solid rgba(255,255,255,0.6);
  box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset, 0 6px 18px rgba(0,0,0,0.35);
  transition: transform 0.12s;
}
.nav-cta:hover { transform: translateY(-1px); }
.nav-icon-btn {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
}
.nav-icon-btn:hover { background: var(--surface); }

@media (max-width: 820px) {
  .nav-links { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14.5px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  transition: transform 0.12s, background 0.15s, border-color 0.15s;
  cursor: pointer;
}
.btn:hover { background: var(--surface-2); transform: translateY(-1px); }
.btn-primary {
  background: var(--text);
  color: #0a0a0c;
  border-color: rgba(255,255,255,0.6);
  box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset, 0 10px 30px rgba(0,0,0,0.45);
}
.btn-primary:hover { background: #fff; }
.btn-ghost { background: transparent; }

/* ---------- hero ---------- */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}
.hero h1 {
  font-size: clamp(48px, 7.5vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin: 26px auto 22px;
  font-weight: 600;
  max-width: 900px;
  text-wrap: balance;
}
.hero h1 .dim { color: var(--muted); }
.hero p.lede {
  font-size: clamp(16px, 1.5vw, 19px);
  color: var(--text-dim);
  max-width: 580px;
  margin: 0 auto;
  text-wrap: pretty;
}
.hero-ctas {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 36px;
  flex-wrap: wrap;
}
.hero-platforms {
  margin-top: 26px;
  display: flex;
  gap: 20px;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-platforms span { display: inline-flex; gap: 8px; align-items: center; }
.hero-platforms .sep { color: var(--muted-2); }

/* ---------- toolkit list (clean text grid) ---------- */
.toolkit-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 12px;
}
.tk-item {
  background: var(--glass-card);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background 0.2s ease;
}
.tk-item:hover {
  background: rgba(14, 16, 20, 0.7);
}
.tk-item .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
}
.tk-item h4 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}
.tk-item p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.55;
}
@media (max-width: 860px) { .toolkit-list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .toolkit-list { grid-template-columns: 1fr; } }

/* ---------- feature stack (scroll-pinned) ---------- */
.stack-track {
  position: relative;
  height: 380vh; /* 4 panels × ~70vh scroll range each */
}
.stack-pin {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.stack-panel {
  position: absolute !important;
  inset: 0;
  padding: 0 !important;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  opacity: 0;
  transform: translateY(60px) scale(0.97);
  transition:
    opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
  pointer-events: none;
}
.stack-panel > .container {
  width: 100%;
}
.stack-panel.is-active {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.stack-panel.is-prev {
  opacity: 0;
  transform: translateY(-60px) scale(0.97);
}
.stack-progress {
  position: absolute;
  top: 50%;
  right: 38px;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 14px;
  z-index: 10;
}
.stack-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--dot-inactive);
  transition: background 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease;
}
.stack-dot.active {
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  transform: scale(1.4);
}
@media (max-width: 920px) {
  .stack-track { height: auto; }
  .stack-pin {
    position: static;
    height: auto;
    display: block;
    overflow: visible;
  }
  .stack-panel {
    position: static !important;
    inset: auto;
    opacity: 1;
    transform: none;
    padding: 60px 0 !important;
    pointer-events: auto;
  }
  .stack-progress { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .stack-panel {
    transition: opacity 0.2s linear;
    transform: none !important;
  }
}

/* ---------- floating side widgets ---------- */
.float-widget {
  position: absolute;
  top: 50%;
  padding: 20px 24px 18px;
  min-width: 168px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.04), transparent 60%),
    var(--glass-nav);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  box-shadow:
    0 30px 60px rgba(0,0,0,0.45),
    0 0 0 1px rgba(255,255,255,0.02),
    inset 0 1px 0 rgba(255,255,255,0.05);
  text-align: left;
  z-index: 1;
  --rot: 0deg;
  transform: translateY(-50%) rotate(var(--rot));
  animation: floatY 7s ease-in-out infinite;
}
.float-widget::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 22px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}
.float-widget .glyph {
  position: absolute;
  top: 18px;
  right: 18px;
  color: var(--muted);
  opacity: 0.85;
}
.float-widget .v {
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-top: 22px;
  padding-left: 18px;
}
.float-widget .l {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  padding-left: 18px;
}
.float-widget-left {
  left: 5%;
  --rot: -5deg;
}
.float-widget-right {
  right: 5%;
  --rot: 5deg;
  animation-delay: -3.5s;
}
@keyframes floatY {
  0%, 100% { transform: translateY(calc(-50% - 10px)) rotate(var(--rot)); }
  50%      { transform: translateY(calc(-50% + 10px)) rotate(var(--rot)); }
}
@media (max-width: 1200px) {
  .float-widget-left  { left: 1%; }
  .float-widget-right { right: 1%; }
}
@media (max-width: 980px) {
  .float-widget { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .float-widget { animation: none; }
}

/* ---------- stat strip ---------- */
.stats {
  margin: 80px auto 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--glass-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}
.stat {
  padding: 28px 22px;
  text-align: center;
  position: relative;
}
.stat + .stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16%;
  bottom: 16%;
  width: 1px;
  background: var(--border);
}
.stat .v {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: -0.01em;
  color: var(--text);
}
.stat .l {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
@media (max-width: 760px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat + .stat::before { display: none; }
  .stat:nth-child(3)::before, .stat:nth-child(4)::before { display: none; }
}

/* ---------- section header ---------- */
.section { padding: 110px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-num {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.section-num .bar { width: 28px; height: 1px; background: var(--border-strong); }
.section h2 {
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 18px auto 14px;
  max-width: 900px;
  text-wrap: balance;
}
.section .sub {
  color: var(--text-dim);
  max-width: 580px;
  margin: 0 auto;
  font-size: 17px;
  text-wrap: pretty;
}

/* ---------- two-col feature ---------- */
.feat-row {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: center;
  padding: 60px 0;
}
.feat-row.reverse { grid-template-columns: 1.4fr 1fr; }
.feat-row.reverse .feat-copy { order: 2; }
.feat-row.reverse .feat-vis { order: 1; }
.feat-copy h3 {
  font-size: clamp(28px, 3.3vw, 42px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 600;
  margin: 18px 0 18px;
  text-wrap: balance;
}
.feat-copy p {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 440px;
  margin: 0 0 26px;
}
.feat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.feat-list li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  align-items: center;
  color: var(--text-dim);
  font-size: 14.5px;
}
.feat-list li svg { color: var(--accent); }
.feat-vis {
  position: relative;
}

@media (max-width: 860px) {
  .feat-row, .feat-row.reverse {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px 0;
  }
  .feat-row.reverse .feat-copy, .feat-row.reverse .feat-vis { order: initial; }
}

/* ---------- phone frame ---------- */
.phone {
  width: 280px;
  aspect-ratio: 280 / 580;
  border-radius: 40px;
  background: #0a0a0c;
  border: 1px solid rgba(255,255,255,0.16);
  padding: 9px;
  position: relative;
  margin: 0 auto;
  box-shadow:
    0 30px 80px rgba(0,0,0,0.6),
    0 0 0 1.5px rgba(255,255,255,0.04),
    inset 0 0 0 1px rgba(255,255,255,0.06);
}
.phone::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 24px;
  background: #000;
  border-radius: 999px;
  z-index: 5;
}
.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 32px;
  background: #0f1014;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}
.phone-wider { width: 320px; aspect-ratio: 320 / 660; }

/* status bar */
.statusbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 22px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text);
}
.statusbar .icons { display: flex; gap: 5px; align-items: center; }

/* ---------- features grid ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.grid-cell {
  background: var(--glass-card);
  padding: 32px 28px;
  min-height: 200px;
}
.grid-cell .ico {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  margin-bottom: 28px;
}
.grid-cell h4 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.grid-cell p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}
@media (max-width: 860px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .grid-3 { grid-template-columns: 1fr; } }

/* ---------- faq ---------- */
.faq {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--glass-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}
.faq details {
  border-bottom: 1px solid var(--border);
}
.faq details:last-child { border-bottom: 0; }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 15px;
  font-weight: 500;
  transition: background 0.15s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { background: var(--surface); }
.faq summary .chev {
  transition: transform 0.2s ease;
  flex-shrink: 0;
  color: var(--muted);
}
.faq details[open] .chev { transform: rotate(180deg); color: var(--text); }
.faq .answer {
  padding: 0 26px 24px;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.6;
  max-width: 720px;
}

/* ---------- footer ---------- */
.footer {
  margin-top: 80px;
  padding: 60px 0 40px;
  border-top: 1px solid var(--border);
  position: relative;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 16px;
  font-weight: 500;
}
.footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer a { color: var(--text-dim); font-size: 14px; }
.footer a:hover { color: var(--text); }
.footer-brand p { color: var(--muted); font-size: 13.5px; max-width: 320px; margin: 14px 0 0; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 12.5px;
  font-family: var(--font-mono);
  flex-wrap: wrap;
  gap: 10px;
}
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}

/* ---------- callout / cta ---------- */
.cta-card {
  position: relative;
  margin: 40px auto;
  padding: 70px 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 0%, oklch(0.72 0.16 295 / 0.16), transparent 60%),
    var(--glass-nav);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  text-align: center;
  overflow: hidden;
}
.cta-card h2 {
  font-size: clamp(32px, 4.5vw, 54px);
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 16px auto 16px;
  text-wrap: balance;
  max-width: 700px;
}
.cta-card p {
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto;
  font-size: 16px;
}

/* ---------- changelog ---------- */
.changelog-entry {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 50px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.changelog-entry:first-of-type { border-top: 0; padding-top: 0; }
.changelog-meta {
  font-family: var(--font-mono);
  font-size: 12.5px;
}
.changelog-meta .ver {
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 8px;
}
.changelog-meta .date { color: var(--muted); }
.changelog-meta .tag {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.tag-stable { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent-line); }
.tag-beta { background: rgba(255,170,80,0.12); color: oklch(0.82 0.13 75); border: 1px solid oklch(0.82 0.13 75 / 0.4); }
.changelog-body h3 {
  font-size: 22px;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
  font-weight: 600;
}
.changelog-body ul { padding-left: 18px; color: var(--text-dim); font-size: 14.5px; }
.changelog-body ul li { margin-bottom: 8px; }
.changelog-body .label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-block;
  margin-right: 6px;
}
.label-add { color: var(--accent); }
.label-fix { color: oklch(0.78 0.13 230); }
.label-chg { color: oklch(0.82 0.10 60); }
@media (max-width: 760px) { .changelog-entry { grid-template-columns: 1fr; gap: 16px; } }

/* ---------- about / page hero ---------- */
.page-hero {
  padding: 100px 0 60px;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(40px, 6vw, 72px);
  letter-spacing: -0.03em;
  line-height: 1.02;
  margin: 18px auto 18px;
  font-weight: 600;
  max-width: 800px;
  text-wrap: balance;
}
.page-hero p {
  color: var(--text-dim);
  font-size: 18px;
  max-width: 600px;
  margin: 0 auto;
  text-wrap: pretty;
}

/* ---------- prose ---------- */
.prose {
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.75;
}
.prose h2 {
  color: var(--text);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 56px 0 14px;
}
.prose h3 {
  color: var(--text);
  font-size: 20px;
  font-weight: 600;
  margin: 36px 0 10px;
}
.prose a { color: var(--accent); border-bottom: 1px solid var(--accent-line); }
.prose a:hover { color: var(--text); border-color: var(--text); }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.prose blockquote {
  margin: 24px 0;
  padding: 14px 20px;
  border-left: 2px solid var(--accent);
  background: var(--surface);
  border-radius: 0 8px 8px 0;
  color: var(--text);
}

/* ---------- download cards ---------- */
.dl-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
}
.dl-card {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--glass-nav);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  transition: border-color 0.15s, transform 0.15s;
}
.dl-card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.dl-card.primary { border-color: var(--accent-line); background: var(--accent-soft); }
.dl-card h3 { margin: 0; font-size: 18px; font-weight: 600; }
.dl-card .desc { font-size: 13.5px; color: var(--muted); margin: 0; }
.dl-card .meta {
  display: flex;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: uppercase;
  border-top: 1px solid var(--border);
  padding-top: 14px;
  margin-top: 6px;
}
@media (max-width: 760px) { .dl-grid { grid-template-columns: 1fr; } }

/* ---------- chip row ---------- */
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

/* ---------- gallery mock (phone) ---------- */
.mock-gallery {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 3px;
  padding: 8px;
  padding-top: 36px;
  align-content: start;
}
.mock-tile {
  aspect-ratio: 1;
  border-radius: 4px;
  background: linear-gradient(135deg, #1a1d23, #0f1014);
  position: relative;
  overflow: hidden;
}
.mock-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--x, 40%) var(--y, 40%), var(--c, #2a2d33) 0%, transparent 60%);
}
.mock-tile.t-portrait { aspect-ratio: 1 / 1.4; grid-row: span 1; }

/* ---------- noise overlay ---------- */
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.03;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence baseFrequency='0.9' numOctaves='2'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.6'/></svg>");
}

/* ---------- scrollbar ---------- */
html {
  scrollbar-width: thin;
  scrollbar-color: transparent transparent;
  transition: scrollbar-color 0.4s ease;
}
html.is-scrolling {
  scrollbar-color: var(--scrollbar-thumb) transparent;
}
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: transparent;
  border-radius: 999px;
  transition: background 0.4s ease;
}
html.is-scrolling ::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
}

/* ---------- nav at-top (transparent, no pill border visible) ---------- */
.nav--top .nav-inner {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}

/* utility */
.center-text { text-align: center; }
.spacer-lg { height: 100px; }
.muted { color: var(--muted); }
.kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
}

/* ==========================================================
   APP PHONE MOCK — matches actual Proton Photos Android app
   (colors, spacing, typography from app source code)
   ========================================================== */
.app-screen {
  --app-bg0:        #090909;
  --app-bg1:        #0e0e0f;
  --app-bg2:        #1a1a1a;
  --app-card:       #1c1c1e;
  --app-card-bord:  #2c2c2e;
  --app-fg:         #ecebf3;
  --app-fg-dim:     #a4a1b4;
  --app-fg-mute:    #6b6880;
  --app-accent:     #8b7cff;
  --app-accent2:    #6957d7;
  --app-line:       rgba(255,255,255,0.08);
  --app-line2:      rgba(255,255,255,0.12);
  --app-pill-bg:    rgba(28,28,30,0.74);
  --app-pill-opaque:rgba(28,28,30,0.92);
  --app-panel-bg:   #14111b;
  --app-panel-chip: #1f1b29;
  --app-track:      #2e2a38;
  --app-synced:     #30d158;
  --app-pending:    #ff9f0a;
  --app-error:      #ff8c7a;

  width: 100%; height: 100%;
  background: var(--app-bg1);
  color: var(--app-fg);
  font-family: var(--font-sans);
  display: flex; flex-direction: column;
  position: relative; overflow: hidden;
  border-radius: 32px;
}
.app-status {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 22px 4px;
  font-size: 11px; font-family: var(--font-mono);
  color: var(--app-fg);
}
.app-status .icons { display: flex; gap: 5px; align-items: center; color: var(--app-fg); }

/* filter rail (top of gallery) */
.app-rail {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 14px 6px;
}
.app-pill {
  height: 30px; padding: 0 11px;
  border-radius: 999px;
  background: var(--app-pill-bg);
  border: 0.5px solid var(--app-card-bord);
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11.5px; font-weight: 500; color: var(--app-fg);
  white-space: nowrap;
}
.app-pill .num { font-size: 10px; color: var(--app-fg-dim); margin-left: 2px; }
.app-pill.active {
  background: rgba(139,124,255,0.18);
  color: var(--app-accent);
  border-color: transparent;
}
.app-pill-icon {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--app-pill-bg);
  border: 0.5px solid var(--app-card-bord);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--app-fg-dim); flex-shrink: 0;
}

/* avatar w/ storage ring */
.app-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: conic-gradient(var(--app-synced) 0 38%, rgba(255,255,255,0.07) 38% 100%);
  padding: 2px;
  margin-left: auto;
  flex-shrink: 0;
  display: flex;
}
.app-avatar-inner {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--app-accent), var(--app-accent2));
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 600; color: white;
}

/* date header */
.app-date {
  padding: 8px 16px 6px;
}
.app-date-title {
  font-size: 16px; font-weight: 600; letter-spacing: -0.01em; color: var(--app-fg);
}
.app-date-count {
  margin-top: 1px; font-size: 10px; color: var(--app-fg-mute);
}

/* photo grid */
.app-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 0 8px;
  align-content: start;
  overflow: hidden;
  flex: 1;
}
.app-tile {
  aspect-ratio: 1;
  border-radius: 7px;
  background: var(--app-bg2);
  position: relative;
  overflow: hidden;
}
.app-tile::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at var(--x, 40%) var(--y, 40%), var(--c, #2a2a2c) 0%, transparent 65%);
}
.app-tile-badge {
  position: absolute; bottom: 3px; right: 3px;
  padding: 2px 3px;
  background: rgba(0,0,0,0.55);
  border-radius: 3px;
  display: flex; align-items: center;
  color: white;
}
.app-tile-video {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 22px; height: 22px;
  background: rgba(0,0,0,0.55);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: white;
}

/* bottom dock */
.app-dock {
  position: absolute; bottom: 16px; left: 50%;
  transform: translateX(-50%);
  display: inline-flex; align-items: center; gap: 2px;
  padding: 4px;
  background: var(--app-pill-opaque);
  border: 0.5px solid var(--app-card-bord);
  border-radius: 999px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.app-dock-tab {
  padding: 6px 11px;
  border-radius: 999px;
  font-size: 10.5px; font-weight: 600;
  color: var(--app-fg-dim);
  display: inline-flex; align-items: center; gap: 5px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  user-select: none;
}
.app-dock-tab.active {
  background: rgba(139,124,255,0.18);
  color: var(--app-accent);
}
.app-dock-tab svg { flex-shrink: 0; }

/* settings page chrome */
.app-page-head {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px 14px;
}
.app-back {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--app-pill-bg);
  border: 0.5px solid var(--app-card-bord);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--app-fg);
}
.app-page-title { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; color: var(--app-fg); }
.app-section-label {
  font-size: 9.5px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--app-fg-mute);
  padding: 0 16px 6px;
}

/* settings card */
.app-card {
  margin: 0 12px 10px;
  background: var(--app-card);
  border: 0.5px solid var(--app-card-bord);
  border-radius: 12px;
  overflow: hidden;
}
.app-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 11px 14px;
  border-top: 0.5px solid var(--app-card-bord);
  cursor: default;
}
.app-row:first-child { border-top: none; }
.app-row.indent { padding-left: 28px; position: relative; }
.app-row.indent::before {
  content: ""; position: absolute;
  left: 16px; top: 50%; transform: translateY(-50%);
  width: 6px; height: 1px;
  background: var(--app-line2);
}
.app-row.disabled .app-row-label,
.app-row.disabled .app-row-desc { opacity: 0.4; }
.app-row.disabled .app-switch { opacity: 0.5; }
.app-row-label { font-size: 12.5px; font-weight: 500; color: var(--app-fg); line-height: 1.3; }
.app-row-desc  { font-size: 10.5px; color: var(--app-fg-mute); margin-top: 2px; line-height: 1.3; }
.app-row-value { font-size: 11.5px; color: var(--app-synced); font-weight: 600; font-family: var(--font-mono); }
.app-chev      { color: var(--app-fg-mute); }

/* material-style switch (clickable) */
.app-switch {
  width: 30px; height: 18px;
  background: var(--app-line2);
  border-radius: 999px;
  position: relative; cursor: pointer;
  transition: background 0.2s;
  flex-shrink: 0;
}
.app-switch::after {
  content: ""; position: absolute;
  top: 3px; left: 3px;
  width: 12px; height: 12px;
  background: var(--app-fg-mute);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}
.app-switch.on { background: var(--app-accent); }
.app-switch.on::after {
  background: white;
  transform: translateX(12px);
}

/* editor */
.app-editor-top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 12px;
}
.app-editor-top-side {
  display: flex; gap: 7px; align-items: center; min-width: 80px;
}
.app-editor-side-right { justify-content: flex-end; }
.app-editor-title { font-size: 14px; font-weight: 600; color: var(--app-fg); letter-spacing: -0.01em; }
.app-icon-btn {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--app-panel-chip);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--app-fg-dim);
}
.app-save-pill {
  height: 30px; padding: 0 14px;
  background: var(--app-accent);
  border-radius: 999px;
  font-size: 11px; font-weight: 600; color: white;
  display: inline-flex; align-items: center;
}
.app-editor-stage {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  background: var(--app-bg0);
  padding: 4px 8px;
}
.app-photo-mock {
  width: 95%; aspect-ratio: 1;
  border-radius: 10px;
  background: linear-gradient(135deg, oklch(0.35 0.08 165), oklch(0.2 0.06 200));
  position: relative; overflow: hidden;
}
.app-photo-mock::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 40% 35%, rgba(255,255,255,0.18), transparent 65%);
}
.app-redact-strip {
  position: absolute; top: 28%; left: 22%;
  width: 50%; height: 14%;
  background: rgba(0,0,0,0.88);
  border-radius: 3px;
}
.app-editor-panel {
  background: var(--app-panel-bg);
  border-radius: 22px 22px 0 0;
  padding: 14px 0 16px;
}
.app-slider {
  padding: 0 18px 12px;
}
.app-slider-label {
  display: flex; justify-content: space-between;
  margin-bottom: 7px;
}
.app-slider-name { font-size: 11px; font-weight: 500; color: var(--app-fg); }
.app-slider-val  { font-size: 11px; color: var(--app-fg-dim); font-family: var(--font-mono); }
.app-slider-track {
  height: 3px; background: var(--app-track);
  border-radius: 999px; position: relative;
}
.app-slider-fill {
  position: absolute;
  left: 50%; top: 0; height: 100%;
  background: var(--app-accent);
  border-radius: 999px;
}
.app-slider-thumb {
  position: absolute; top: 50%;
  width: 12px; height: 12px;
  background: white;
  border-radius: 50%;
  transform: translate(-50%,-50%);
  box-shadow: 0 0 0 2px var(--app-accent), 0 1px 3px rgba(0,0,0,0.3);
}
.app-tools {
  display: flex; justify-content: space-around;
  padding: 4px 6px 0;
}
.app-tool {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 6px 10px;
  cursor: pointer;
  user-select: none;
}
.app-tool-icon-wrap {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: transparent;
  display: flex; align-items: center; justify-content: center;
  color: var(--app-fg-dim);
  transition: background 0.2s, color 0.2s;
}
.app-tool-label {
  font-size: 9px; color: var(--app-fg-dim);
  text-transform: uppercase; letter-spacing: 0.05em;
  font-family: var(--font-mono);
}
.app-tool.active .app-tool-icon-wrap {
  background: rgba(139,124,255,0.18);
  color: var(--app-accent);
}
.app-tool.active .app-tool-label {
  color: var(--app-accent); font-weight: 600;
}

/* ---------- theme toggle icons ---------- */
.icon-moon { display: none; }
.icon-sun  { display: block; }
[data-theme="light"] .icon-moon { display: block; }
[data-theme="light"] .icon-sun  { display: none; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .icon-moon { display: block; }
  :root:not([data-theme="dark"]) .icon-sun  { display: none; }
}

/* ---------- light mode ---------- */
/* system preference + manual toggle — vars duplicated intentionally */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg:             #f4f5f7;
    --bg-2:           #e8eaee;
    --surface:        rgba(0,0,0,0.04);
    --surface-2:      rgba(0,0,0,0.07);
    --border:         rgba(0,0,0,0.09);
    --border-strong:  rgba(0,0,0,0.18);
    --text:           #0d0f14;
    --text-dim:       #3b404a;
    --muted:          #6b7280;
    --muted-2:        #9ca3af;
    --accent:         oklch(0.50 0.20 295);
    --accent-soft:    oklch(0.50 0.20 295 / 0.10);
    --accent-line:    oklch(0.50 0.20 295 / 0.30);
    --danger:         oklch(0.55 0.18 25);
    --glass-nav:      rgba(244,245,247,0.85);
    --glass-card:     rgba(234,236,240,0.80);
    --dot-inactive:   rgba(0,0,0,0.14);
    --grid-dot:       rgba(0,0,0,0.045);
    --scrollbar-thumb: rgba(0,0,0,0.20);
  }
  :root:not([data-theme="dark"]) .noise { filter: invert(1); opacity: 0.025; }
  :root:not([data-theme="dark"]) .tk-item:hover { background: rgba(220,222,228,0.85); }
}

[data-theme="light"] {
  --bg:             #f4f5f7;
  --bg-2:           #e8eaee;
  --surface:        rgba(0,0,0,0.04);
  --surface-2:      rgba(0,0,0,0.07);
  --border:         rgba(0,0,0,0.09);
  --border-strong:  rgba(0,0,0,0.18);
  --text:           #0d0f14;
  --text-dim:       #3b404a;
  --muted:          #6b7280;
  --muted-2:        #9ca3af;
  --accent:         oklch(0.50 0.20 295);
  --accent-soft:    oklch(0.50 0.20 295 / 0.10);
  --accent-line:    oklch(0.50 0.20 295 / 0.30);
  --danger:         oklch(0.55 0.18 25);
  --glass-nav:      rgba(244,245,247,0.85);
  --glass-card:     rgba(234,236,240,0.80);
  --dot-inactive:   rgba(0,0,0,0.14);
  --grid-dot:       rgba(0,0,0,0.045);
  --scrollbar-thumb: rgba(0,0,0,0.20);
}
[data-theme="light"] .noise { filter: invert(1); opacity: 0.025; }
[data-theme="light"] .tk-item:hover { background: rgba(220,222,228,0.85); }