/* ToneSnap project site. Colours follow the app's design tokens (src/styles/tokens.css). */

:root {
  color-scheme: light;
  --bg: #f4f5f9;
  --surface: #ffffff;
  --surface-2: #f0f2f7;
  --border: #e4e7ef;
  --text: #171a22;
  --text-2: #56607a;
  --accent: #4f5fe8;
  --accent-hover: #4453d6;
  --accent-soft: #eceefe;
  --accent-text: #4352d4;
  --brand-gradient: linear-gradient(135deg, #3b7bff, #7a5cfa);
  --safe: #146c43;
  --sponsor: #bf3989;
  --mark: #fff1b8;
  --shadow: 0 10px 40px rgba(20, 24, 40, 0.12);
  --shadow-sm: 0 1px 2px rgba(20, 24, 40, 0.06);
  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", Consolas, "SFMono-Regular", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #12141b;
    --surface: #1b1e27;
    --surface-2: #232733;
    --border: #2d3240;
    --text: #e9ecf3;
    --text-2: #a3abbf;
    --accent: #7383ff;
    --accent-hover: #8794ff;
    --accent-soft: #252a4a;
    --accent-text: #9aa6ff;
    --safe: #5fd39a;
    --sponsor: #db61a2;
    --mark: #5a4a12;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-text);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 12px;
}

h2 {
  font-size: clamp(26px, 4vw, 34px);
}

h3 {
  font-size: 17px;
}

p {
  margin: 0 0 12px;
}

kbd {
  font: 600 0.85em var(--mono);
  padding: 1px 6px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--surface);
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Navigation */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 18px;
}

.brand:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 15px;
}

.nav-links a:not(.btn) {
  color: var(--text-2);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 20px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
  box-shadow: var(--shadow-sm);
}

.btn:hover {
  text-decoration: none;
  border-color: var(--accent);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-small {
  height: 34px;
  padding: 0 14px;
  font-size: 14px;
}

.btn-sponsor {
  gap: 6px;
}

.btn-sponsor .heart {
  flex: none;
  color: var(--sponsor);
}

/* Hero */

.hero {
  padding: 72px 0 80px;
  background:
    radial-gradient(600px 300px at 85% 10%, color-mix(in srgb, #7a5cfa 18%, transparent), transparent),
    radial-gradient(500px 300px at 10% 90%, color-mix(in srgb, #3b7bff 14%, transparent), transparent);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-text);
  font-size: 13px;
  font-weight: 600;
}

h1 {
  font-size: clamp(36px, 6vw, 56px);
  letter-spacing: -0.02em;
  margin-top: 12px;
}

.grad {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: 18px;
  color: var(--text-2);
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 16px;
}

.note {
  font-size: 14px;
  color: var(--text-2);
}

.uninstall-note {
  margin: 24px 0 0;
}

.source-title {
  margin-top: 32px;
}

/* Popup illustration */

.demo {
  position: relative;
}

.demo-source {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: var(--shadow-sm);
  width: 78%;
}

.demo-source p {
  margin: 4px 0 0;
}

.demo-app {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

mark {
  background: var(--mark);
  color: inherit;
  padding: 1px 2px;
  border-radius: 3px;
}

.popup {
  margin: -6px 0 0 14%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.popup-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-weight: 700;
  font-size: 14px;
}

.popup-icons {
  margin-left: auto;
  color: var(--text-2);
  font-weight: 400;
  letter-spacing: 0.4em;
}

.popup-body {
  display: grid;
  gap: 8px;
  padding: 10px 12px 12px;
}

.chips,
.options {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
}

.chip {
  padding: 1px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  font-size: 11px;
}

/* The language and mode choices, drawn like the app's segmented controls. */
.seg {
  display: inline-flex;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-2);
  font-size: 12px;
  color: var(--text-2);
}

.seg span {
  padding: 1px 8px;
  border: 1px solid transparent;
  border-radius: 6px;
}

.seg .on {
  border-color: var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  color: var(--accent-text);
  font-weight: 600;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px 10px;
}

.card-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.card-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge {
  display: grid;
  place-items: center;
  flex: none;
  width: 20px;
  height: 20px;
  border-radius: 5px;
  background: var(--accent-soft);
  color: var(--accent-text);
  font-size: 11px;
  font-weight: 700;
}

.tone {
  font-size: 14px;
  font-weight: 700;
}

.card .text {
  margin: 4px 0 0;
  font-size: 15px;
}

.card-actions {
  display: flex;
  gap: 6px;
  margin-left: auto;
}

.mini {
  font-size: 12px;
  font-weight: 600;
  padding: 1px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.mini-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.popup-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 12px;
  padding: 8px 12px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  color: var(--text-2);
  font-size: 12px;
}

.popup-keys {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
}

.popup-keys > span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.popup-keys kbd {
  font-size: 11px;
  padding: 0 4px;
}

/* Sections */

.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-lead {
  font-size: 18px;
  color: var(--text-2);
  max-width: 680px;
  margin-bottom: 32px;
}

.video-frame {
  max-width: 960px;
  margin: 0 auto;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  background: #000;
}

.video-frame video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature,
.link-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.section-alt .link-card {
  background: var(--bg);
}

.feature p,
.link-card p {
  color: var(--text-2);
  margin: 0;
  font-size: 15px;
}

.ficon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--accent-soft);
  font-size: 20px;
  margin-bottom: 14px;
}

.link-card {
  display: block;
  color: var(--text);
  transition:
    transform 120ms ease,
    border-color 120ms ease;
}

.link-card:hover {
  text-decoration: none;
  border-color: var(--accent);
  transform: translateY(-2px);
}

.link-card h3 {
  color: var(--accent-text);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
}

.checks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.checks li {
  position: relative;
  padding-left: 32px;
  color: var(--text-2);
}

.checks li strong {
  color: var(--text);
}

.checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: color-mix(in srgb, var(--safe) 15%, transparent);
  color: var(--safe);
  font-size: 13px;
  font-weight: 700;
}

.steps {
  list-style: none;
  counter-reset: step;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.steps li {
  counter-increment: step;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  min-width: 0;
}

.steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--brand-gradient);
  color: #fff;
  font-weight: 700;
}

.steps p {
  color: var(--text-2);
  margin: 0;
  font-size: 15px;
}

code {
  font: 0.9em var(--mono);
}

pre code {
  font: inherit;
}

pre {
  margin: 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  overflow-x: auto;
  font: 13px/1.6 var(--mono);
}

.providers {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.providers span {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-2);
}

/* Footer */

.footer {
  padding: 28px 0;
  font-size: 14px;
  color: var(--text-2);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

/* Narrow screens */

@media (max-width: 900px) {
  .hero-inner,
  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .grid,
  .steps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav-links a:not(.btn) {
    display: none;
  }

  .hero {
    padding: 48px 0 56px;
  }

  .grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .demo-source {
    width: 100%;
  }

  .popup {
    margin-left: 0;
  }

  .section {
    padding: 56px 0;
  }
}