*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Morning (default) */
  --bg: #F8F2E8;
  --bg-end: #F8F2E8;
  --fg: #241F1A;
  --muted: #998A7A;
  --border: #E0D9CC;
  --font: system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
}

[data-tone="morning"] {
  --bg: #F8F2E8;
  --bg-end: #F8F2E8;
  --fg: #241F1A;
  --muted: #998A7A;
  --border: #E0D9CC;
}

[data-tone="midday"] {
  --bg: #F5F5F2;
  --bg-end: #F5F5F2;
  --fg: #0F0F0F;
  --muted: #70706B;
  --border: #E0E0DE;
}

[data-tone="evening"] {
  --bg: #0F0F14;
  --bg-end: #0F0F14;
  --fg: #E0DEDA;
  --muted: #8F8C8A;
  --border: #2E2E33;
}

html {
  min-height: 100%;
}

body {
  font-family: var(--font);
  background: linear-gradient(to bottom, var(--bg), var(--bg-end));
  color: var(--fg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Hero */
.hero {
  padding-top: 20vh;
  padding-bottom: 120px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(48px, 10vw, 80px);
  font-weight: 200;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 16px;
}

.tagline {
  font-size: clamp(18px, 3vw, 22px);
  font-weight: 300;
  color: var(--muted);
  margin-bottom: 24px;
}

.sub {
  font-size: 16px;
  font-weight: 300;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 48px;
}

.cta {
  display: inline-block;
  padding: 14px 32px;
  border: 1px solid var(--fg);
  border-radius: 100px;
  color: var(--fg);
  text-decoration: none;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 0.02em;
  transition: background 0.2s, color 0.2s;
}

.cta:hover {
  background: var(--fg);
  color: var(--bg);
}

.coming-soon {
  cursor: default;
  opacity: 0.6;
}

.coming-soon:hover {
  background: transparent;
  color: var(--fg);
}

/* Demo video */
.demo-video {
  margin-top: 48px;
  border-radius: 12px;
  overflow: hidden;
}

.demo-video video {
  width: 100%;
  height: auto;
  display: block;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px 48px;
  padding-bottom: 120px;
}

@media (max-width: 560px) {
  .features {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

.feature-icon {
  display: block;
  font-size: 28px;
  color: var(--muted);
  margin-bottom: 16px;
}

.feature h2 {
  font-size: 18px;
  font-weight: 400;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature p {
  font-size: 14px;
  font-weight: 300;
  color: var(--muted);
  line-height: 1.7;
}

.theme-container {
  margin-top: 20px;
  background: #ffffff;
  border-radius: 16px;
  padding: 20px;
  border: 2px solid var(--fg);
}

.theme-strip {
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.theme-swatch {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.theme-swatch span {
  font-size: 14px;
  font-weight: 400;
  color: #3A3A38;
}

.swatch-gradient {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid #E0E0DE;
}

.swatch-gradient.sakura {
  background: linear-gradient(to bottom, #FEF4F4, #F2D0D6, #E8B4C0);
}

.swatch-gradient.matcha {
  background: linear-gradient(to bottom, #F5F6F0, #DDE6CA, #C2D6A8);
}

.swatch-gradient.sumi {
  background: linear-gradient(to bottom, #0C0C10, #161830, #1E2848);
}

.swatch-gradient.kumo {
  background: linear-gradient(to bottom, #F3F3F3, #D4E8F0, #B0D8EE);
}

.swatch-gradient.akatsuki {
  background: linear-gradient(to bottom, #141828, #3A1E30, #5C2838);
}

/* Screenshots */
.screenshots {
  padding-bottom: 120px;
}

.screenshot-row {
  display: flex;
  gap: 24px;
  justify-content: center;
  align-items: flex-start;
}

@media (max-width: 560px) {
  .screenshot-row {
    gap: 12px;
  }
}

.phone-frame {
  flex: 1;
  max-width: 200px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
  border: 2px solid var(--fg);
}

.phone-frame img {
  width: 100%;
  height: auto;
  display: block;
}

/* Closing */
.closing {
  text-align: center;
  padding-bottom: 120px;
}

.barely-enough {
  font-size: clamp(24px, 5vw, 36px);
  font-weight: 200;
  color: var(--muted);
  letter-spacing: -0.02em;
}

/* Footer */
footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0 48px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}

footer span {
  font-weight: 400;
  color: var(--fg);
}

footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

footer a:hover {
  color: var(--fg);
}

.footer-links {
  display: flex;
  gap: 24px;
}