/* SugarLens LP — ios/SugarLens/DesignSystem/DesignSystem.swift のトークンをCSSに移植。
   アプリはライト固定(ダークモード対応なし)のため、このLPも同じ方針でライト固定とする。 */

:root {
  /* Color — Brand */
  --color-primary: #205b4d;
  --color-primary-dark: #143e34;
  --color-primary-tint: #eaf6f3;
  --color-accent: #d46e49;
  --color-accent-dark: #b85933;

  /* Color — Semantic */
  --color-warning: #ee862b;

  /* Color — Neutrals */
  --color-ink: #1d2525;
  --color-ink-secondary: #596969;
  --color-ink-tertiary: #8d9a9a;
  --color-surface: #fbfbf9;
  --color-surface-secondary: #f0f4f4;
  --color-border: #dde4e4;

  /* Spacing (8ptグリッド) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-xxl: 40px;

  /* Radius */
  --radius-small: 8px;
  --radius-medium: 12px;
  --radius-large: 16px;
  --radius-pill: 999px;

  /* Shadow */
  --shadow-card: 0 4px 12px rgba(29, 37, 37, 0.08);
  --shadow-card-hover: 0 8px 20px rgba(29, 37, 37, 0.12);
  --shadow-phone: 0 20px 40px -12px rgba(29, 37, 37, 0.28), 0 4px 12px rgba(29, 37, 37, 0.08);

  /* Font */
  --font-sans: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic", "YuGothic", "Segoe UI", Roboto, sans-serif;
  --font-rounded: -apple-system, "SF Pro Rounded", var(--font-sans);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 日本語(スペースなしの分かち書き)テキストが横幅の狭い画面で
   折り返されず、はみ出すことがあるため明示的に指定する。 */
h1, h2, h3, p, span, a, small, strong {
  overflow-wrap: anywhere;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 960px;
  }
}

/* セクション間の余白リズム(従来の1.5倍) */
section {
  padding: 60px 0;
}

@media (min-width: 1024px) {
  section {
    padding: 80px 0;
  }
}

/* MARK: - Brand mark */

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-top: var(--space-lg);
  position: relative;
  z-index: 1;
}

.brand__icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-small);
}

.brand__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-ink);
}

/* MARK: - Eyebrow(見出し上のアクセントアイライン) */

.eyebrow {
  display: block;
  width: 32px;
  height: 3px;
  margin: 0 auto var(--space-md);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

/* MARK: - Hero */

.hero {
  position: relative;
  overflow: hidden;
  padding-top: 36px;
  padding-bottom: 48px;
  background: linear-gradient(180deg, var(--color-primary-tint) 0%, var(--color-surface) 65%);
}

.hero::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 32%, rgba(32, 91, 77, 0.22), rgba(32, 91, 77, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

@media (min-width: 768px) {
  .hero::before {
    width: 520px;
    height: 520px;
    top: -180px;
    right: -160px;
  }
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero__copy {
  margin-top: var(--space-xl);
}

.hero h1 {
  font-size: 34px;
  line-height: 1.12;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 var(--space-md);
  letter-spacing: -0.015em;
}

.hero__sub {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-ink-secondary);
  margin: 0 0 var(--space-xl);
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 48px;
  }
  .hero__sub {
    font-size: 17px;
  }
}

/* スキャン→結果のミニモック。PaywallView.swift の scanToResultMock と
   同じモチーフ(カメラアイコン→矢印→糖質量カード)をCSSで再現している。 */

.scan-mock {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-surface);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-card);
}

.scan-mock__tile {
  width: 72px;
  height: 72px;
  flex: 0 0 72px;
  border-radius: var(--radius-medium);
  background: var(--color-primary-tint);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scan-mock__tile svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.scan-mock__arrow {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  color: var(--color-ink-tertiary);
}

.scan-mock__result {
  flex: 1 1 auto;
  height: 72px;
  border-radius: var(--radius-medium);
  background: var(--color-primary-tint);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.scan-mock__result-value {
  font-family: var(--font-rounded);
  color: var(--color-primary);
  line-height: 1;
}

.scan-mock__result-value strong {
  font-size: 30px;
  font-weight: 700;
}

.scan-mock__result-value span {
  font-size: 16px;
  font-weight: 600;
}

.scan-mock__result-label {
  font-size: 10px;
  font-weight: 500;
  color: var(--color-ink-secondary);
}

/* コンパクト版(iPhoneフレーム内に収める用) */

.scan-mock--compact {
  width: 100%;
  padding: var(--space-sm);
  gap: 6px;
}

.scan-mock--compact .scan-mock__tile {
  width: 52px;
  height: 52px;
  flex-basis: 52px;
}

.scan-mock--compact .scan-mock__tile svg {
  width: 22px;
  height: 22px;
}

.scan-mock--compact .scan-mock__arrow {
  width: 16px;
  height: 16px;
  flex-basis: 16px;
}

.scan-mock--compact .scan-mock__result {
  height: 52px;
}

.scan-mock--compact .scan-mock__result-value strong {
  font-size: 22px;
}

.scan-mock--compact .scan-mock__result-value span {
  font-size: 12px;
}

.scan-mock--compact .scan-mock__result-label {
  font-size: 8px;
}

/* MARK: - Phone frame(CSSのみのiPhone風フレーム) */

.phone-frame {
  position: relative;
  background: var(--color-ink);
  border-radius: 34px;
  padding: 10px;
  box-shadow: var(--shadow-phone);
}

.phone-frame__screen {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--color-surface-secondary);
  border-radius: 24px;
  overflow: hidden;
  padding: 30px 10px 18px;
  display: flex;
  flex-direction: column;
}

.phone-frame__notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 38%;
  height: 16px;
  background: var(--color-ink);
  border-radius: 0 0 10px 10px;
  z-index: 2;
}

.phone-frame__home-indicator {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 34%;
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--color-ink-tertiary);
  opacity: 0.4;
  z-index: 2;
}

.phone-frame--hero {
  width: 200px;
  aspect-ratio: 9 / 17;
  margin: var(--space-lg) auto 0;
}

@media (min-width: 768px) {
  .phone-frame--hero {
    width: 240px;
  }
}

.phone-frame--hero .phone-frame__screen {
  justify-content: center;
}

.phone-frame--sm {
  width: 100%;
  aspect-ratio: 9 / 19.5;
  border-radius: 22px;
  padding: 6px;
}

.phone-frame--sm .phone-frame__screen {
  border-radius: 16px;
  padding: 16px 6px 10px;
}

.phone-frame--sm .phone-frame__notch {
  top: 6px;
  height: 10px;
  width: 34%;
  border-radius: 0 0 8px 8px;
}

.phone-frame--sm .phone-frame__home-indicator {
  bottom: 5px;
  height: 3px;
}

/* App Store バッジ(リリース前プレースホルダ) */

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: var(--space-xl);
  padding: 10px 18px;
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius-medium);
  text-decoration: none;
}

.store-badge svg {
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
}

.store-badge__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.store-badge__text small {
  font-size: 10px;
}

.store-badge__text strong {
  font-size: 16px;
  font-weight: 600;
}

/* MARK: - Value props */

.values {
  background: var(--color-surface-secondary);
}

.values__heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 var(--space-lg);
  text-align: center;
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .value-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.value-card {
  background: var(--color-surface);
  border-radius: var(--radius-large);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.value-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.value-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-medium);
  background: var(--color-primary-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.value-card__icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
}

.value-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 var(--space-xs);
  color: var(--color-ink);
}

.value-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-ink-secondary);
  margin: 0;
}

/* MARK: - Screenshots */

.screenshots__heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 var(--space-lg);
  text-align: center;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

@media (min-width: 768px) {
  .screenshot-grid {
    gap: var(--space-md);
    max-width: 560px;
    margin: 0 auto;
  }
}

/* スクリーンショットのUIモック(色面・スケルトンのみ、文字は入れない)。
   実スクショが用意でき次第、.phone-frame__screen の中身を
   <img class="phone-frame__image"> に差し替えればよい(README参照)。 */

.mock-home,
.mock-scan,
.mock-report {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.mock-home__balance {
  height: 30%;
  min-height: 40px;
  border-radius: var(--radius-medium);
  background: linear-gradient(135deg, var(--color-primary-tint), var(--color-surface));
  border: 1px solid var(--color-primary-tint);
}

.mock-home__stats {
  display: flex;
  gap: 6px;
}

.mock-home__stats span {
  flex: 1;
  height: 16px;
  border-radius: var(--radius-small);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.mock-home__list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.mock-home__item {
  position: relative;
  flex: 1;
  min-height: 20px;
  border-radius: var(--radius-small);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding-left: 22px;
}

.mock-home__item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: var(--color-primary-tint);
}

.mock-scan__photo {
  height: 38%;
  min-height: 44px;
  border-radius: var(--radius-medium);
  background: linear-gradient(135deg, var(--color-surface), var(--color-border));
}

.mock-scan__result {
  height: 26%;
  min-height: 40px;
  border-radius: var(--radius-medium);
  background: var(--color-primary-tint);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.mock-scan__value {
  width: 36px;
  height: 14px;
  border-radius: var(--radius-small);
  background: var(--color-primary);
  opacity: 0.85;
}

.mock-scan__label {
  width: 50px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-primary);
  opacity: 0.35;
}

.mock-scan__alert {
  height: 22px;
  border-radius: var(--radius-small);
  background: linear-gradient(90deg, rgba(212, 110, 73, 0.2), rgba(212, 110, 73, 0.06));
  border: 1px solid rgba(212, 110, 73, 0.25);
}

.mock-report__chart {
  flex: 1;
  display: flex;
  align-items: flex-end;
  gap: 5px;
  padding-top: 8px;
  border-bottom: 1px solid var(--color-border);
}

.mock-report__chart span {
  flex: 1;
  height: var(--h, 40%);
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-tint));
}

.mock-report__legend {
  display: flex;
  gap: 6px;
  justify-content: center;
}

.mock-report__legend span {
  width: 26px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-border);
}

.mock-report__legend span:first-child {
  background: var(--color-accent);
  opacity: 0.7;
}

/* MARK: - Pricing */

.pricing__heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 var(--space-lg);
  text-align: center;
}

.plan-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  max-width: 420px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .plan-grid {
    grid-template-columns: 1fr 1fr;
    max-width: 640px;
  }
}

.plan-card {
  position: relative;
  padding: var(--space-lg);
  border-radius: var(--radius-large);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.plan-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.plan-card--featured {
  background: var(--color-primary-tint);
  border: 2px solid var(--color-primary);
}

.plan-card__badge {
  position: absolute;
  top: -12px;
  right: var(--space-md);
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
}

.plan-card__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink-secondary);
  margin: 0 0 var(--space-xs);
}

.plan-card__price {
  font-family: var(--font-rounded);
  color: var(--color-ink);
  margin: 0 0 var(--space-xs);
}

.plan-card__price strong {
  font-size: 28px;
  font-weight: 700;
}

.plan-card__price span {
  font-size: 14px;
  font-weight: 500;
}

.plan-card__note {
  font-size: 12px;
  color: var(--color-ink-secondary);
  margin: 0;
}

.pricing__disclosure {
  max-width: 640px;
  margin: var(--space-lg) auto 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--color-ink-tertiary);
  text-align: center;
}

/* MARK: - CTA (中間・最終導線) */

.cta-button {
  display: block;
  width: 100%;
  max-width: 320px;
  margin: var(--space-lg) auto 0;
  padding: 14px var(--space-lg);
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius-medium);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

/* MARK: - Footer */

.footer {
  border-top: 1px solid var(--color-border);
  padding: 48px 0 60px;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.footer__brand-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
}

.footer__brand-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-ink);
}

.footer__disclaimer {
  font-size: 12px;
  line-height: 1.7;
  color: var(--color-ink-secondary);
  background: var(--color-surface-secondary);
  border-radius: var(--radius-medium);
  padding: var(--space-md);
  margin: 0 0 var(--space-lg);
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 13px;
  font-weight: 500;
  margin: 0 0 var(--space-md);
}

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

.footer__links a:hover {
  text-decoration: underline;
}

.footer__copyright {
  font-size: 12px;
  color: var(--color-ink-tertiary);
  margin: 0;
}

/* MARK: - モバイル固定ミニCTAバー */

.mini-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 16px rgba(29, 37, 37, 0.1);
  padding: var(--space-sm) 0;
  padding-bottom: calc(var(--space-sm) + env(safe-area-inset-bottom));
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}

.mini-cta.is-visible {
  transform: translateY(0);
  opacity: 1;
}

@media (min-width: 768px) {
  .mini-cta {
    display: none;
  }
}

.mini-cta__button {
  display: block;
  width: 100%;
  text-align: center;
  padding: 12px var(--space-lg);
  border-radius: var(--radius-medium);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
}

/* MARK: - スクロールフェードイン */

.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* MARK: - Reduced motion */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  * {
    animation: none !important;
    transition: none !important;
  }
}