:root {
  --color-bg: oklch(98% 0.005 100);
  --color-text: oklch(22% 0.015 155);
  --color-primary: oklch(45% 0.13 155);
  --color-primary-hover: oklch(38% 0.13 155);
  --color-dark: oklch(20% 0.02 155);
  --color-accent: oklch(88% 0.16 115);
  --color-hero-grad-start: oklch(95% 0.03 150);
  --color-badge-bg: oklch(90% 0.08 150);
  --color-badge-text: oklch(38% 0.12 155);
  --color-body-text: oklch(38% 0.02 155);
  --color-muted: oklch(45% 0.02 155);
  --color-border: oklch(90% 0.01 150);
  --color-border-2: oklch(88% 0.02 150);
  --color-stat-label: oklch(48% 0.02 155);
  --color-section-label: oklch(45% 0.13 155);
  --color-heading: oklch(20% 0.02 155);
  --color-card-icon-bg: oklch(93% 0.03 150);
  --color-card-text: oklch(42% 0.02 155);
  --color-shots-bg: oklch(96% 0.015 150);
  --color-phone-screen-a: oklch(93% 0.02 150);
  --color-phone-screen-b: oklch(90% 0.02 150);
  --color-phone-topbar: oklch(98% 0.005 100 / 0.6);
  --color-cta-text: oklch(93% 0.03 150);
  --color-footer-text: oklch(48% 0.02 155);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
  overflow-x: hidden;
}

h1, h2, h3 { margin: 0; }

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

.eyebrow {
  color: var(--color-section-label);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.section-heading {
  text-align: center;
  margin-bottom: 56px;
}

.section-heading h2 {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 34px;
  color: var(--color-heading);
}

.play-badge-link {
  display: inline-flex;
}

.play-badge {
  display: block;
  height: 56px;
  width: auto;
}

/* Header */

.tn-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(98% 0.005 100 / 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.brand-mark-ring {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  border-top-color: transparent;
  transform: rotate(45deg);
}

.brand-mark-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-name {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 20px;
  color: var(--color-heading);
  letter-spacing: -0.01em;
}

/* Hero */

.hero {
  background: linear-gradient(180deg, var(--color-hero-grad-start) 0%, var(--color-bg) 100%);
  padding: 72px 48px 64px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
}

.badge {
  display: inline-block;
  background: var(--color-badge-bg);
  color: var(--color-badge-text);
  font-weight: 700;
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero h1 {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 48px;
  line-height: 1.25;
  margin: 0 0 20px;
  color: oklch(20% 0.02 155);
  letter-spacing: -0.01em;
}

.hero .lead {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-body-text);
  margin: 0 0 32px;
  max-width: 480px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-note {
  font-size: 13px;
  color: var(--color-muted);
}

.hero-stats {
  display: flex;
  gap: 28px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border-2);
}

.hero-stat-value {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 22px;
  color: var(--color-badge-text);
}

.hero-stat-label {
  font-size: 13px;
  color: var(--color-stat-label);
  margin-top: 4px;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

/* Phone mock */

.phone-mock {
  width: 280px;
  height: 580px;
  background: var(--color-dark);
  border-radius: 40px;
  padding: 14px;
  box-shadow: 0 40px 60px -20px oklch(30% 0.05 155 / 0.35);
}

.phone-mock-screen {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 28px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: repeating-linear-gradient(135deg, var(--color-phone-screen-a) 0px, var(--color-phone-screen-a) 14px, var(--color-phone-screen-b) 14px, var(--color-phone-screen-b) 28px);
}

.phone-mock-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-mock-topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 28px;
  background: var(--color-phone-topbar);
}

.phone-mock-placeholder {
  position: relative;
  font-family: monospace;
  font-size: 12px;
  color: var(--color-body-text);
  text-align: center;
  padding: 0 20px;
  line-height: 1.6;
}

/* Features */

.features {
  padding: 88px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.feature-card {
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 32px;
  background: white;
}

.feature-card h3 {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 19px;
  margin: 0 0 10px;
  color: var(--color-heading);
}

.feature-card p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--color-card-text);
  margin: 0;
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--color-card-icon-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon-match {
  width: 24px;
  height: 14px;
  border-top: 3px solid var(--color-primary);
  position: relative;
}
.feature-icon-match::after {
  content: "";
  width: 2px;
  height: 14px;
  background: var(--color-primary);
  position: absolute;
  left: 50%;
  top: 0;
}

.feature-icon-practice {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 3px solid var(--color-primary);
  position: relative;
}
.feature-icon-practice::after {
  content: "";
  width: 2px;
  height: 9px;
  background: var(--color-primary);
  position: absolute;
  left: 50%;
  top: 4px;
  transform-origin: bottom;
}

.feature-icon-stats {
  align-items: end;
  gap: 4px;
  padding-bottom: 10px;
}
.feature-icon-stats span {
  width: 6px;
  background: var(--color-primary);
  border-radius: 2px;
  display: block;
}
.feature-icon-stats span:nth-child(1) { height: 12px; }
.feature-icon-stats span:nth-child(2) { height: 20px; }
.feature-icon-stats span:nth-child(3) { height: 16px; }

.feature-icon-safe {
  width: 22px;
  height: 22px;
  border: 3px solid var(--color-primary);
  border-radius: 6px 6px 6px 0;
  transform: rotate(45deg);
}

/* Screenshots */

.screenshots {
  background: var(--color-shots-bg);
  padding: 88px 0;
}

.screenshots-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

.screenshot-strip {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  padding-bottom: 12px;
}

.screenshot-item {
  flex: 0 0 200px;
  text-align: center;
  margin: 0;
}

.screenshot-item figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-stat-label);
}

.phone-mock-sm {
  width: 200px;
  height: 420px;
  border-radius: 26px;
  padding: 10px;
  box-shadow: 0 20px 30px -12px oklch(30% 0.05 155 / 0.3);
  position: relative;
}

.phone-mock-placeholder-sm {
  position: absolute;
  inset: 10px;
  border-radius: 18px;
  background: repeating-linear-gradient(135deg, var(--color-phone-screen-a) 0px, var(--color-phone-screen-a) 12px, var(--color-phone-screen-b) 12px, var(--color-phone-screen-b) 24px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: monospace;
  font-size: 10px;
  color: var(--color-body-text);
  text-align: center;
  padding: 0 12px;
  line-height: 1.6;
}

.phone-mock-img {
  position: absolute;
  inset: 10px;
  width: calc(100% - 20px);
  height: calc(100% - 20px);
  border-radius: 18px;
  object-fit: cover;
}

/* CTA */

.cta {
  background: var(--color-primary);
  padding: 80px 48px;
  text-align: center;
}

.cta h2 {
  font-family: "Poppins", sans-serif;
  font-weight: 800;
  font-size: 32px;
  color: white;
  margin: 0 0 16px;
}

.cta p {
  color: var(--color-cta-text);
  font-size: 16px;
  margin: 0 0 32px;
}

/* Footer */

.tn-footer {
  padding: 40px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--color-footer-text);
  font-size: 13px;
  border-top: 1px solid var(--color-border);
}

.footer-links {
  display: flex;
  gap: 20px;
}

/* Responsive */

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 48px 24px;
  }
  .hero-visual { order: -1; }
  .hero h1 { font-size: 36px; }
  .feature-grid { grid-template-columns: 1fr; }
  .tn-header { padding: 16px 24px; }
  .features { padding: 56px 24px; }
  .screenshots-inner { padding: 0 24px; }
  .cta { padding: 56px 24px; }
  .tn-footer { padding: 32px 24px; justify-content: center; text-align: center; }
}

@media (max-width: 480px) {
  .tn-header { padding: 14px 16px; gap: 8px; }
  .brand-name { font-size: 17px; }
  .btn-primary.btn-pill { padding: 8px 14px; font-size: 13px; }
  .hero h1 { font-size: 28px; }
  .phone-mock { width: 100%; max-width: 240px; height: auto; aspect-ratio: 280 / 580; }
}