/* ==========================================================
   手相×四柱推命占い LP
   YAMABOSHI LAB ブランド・VIデザインマニュアル v1.0 準拠
   - カラー: Deep Navy 基調 / Blue・Cyan アクセント / Gold は星のみ
   - タイポ: Montserrat (EN) / Noto Sans JP (JP)
   - モチーフ: 山・星・ネットワーク線・ピクセル
   ========================================================== */

:root {
  /* カラーパレット（VI p.07） */
  --color-navy: #0a1c3d;
  --color-blue: #005eff;
  --color-cyan: #00c2ff;
  --color-turquoise: #00d1c2;
  --color-gold: #ffb600;
  --color-white: #ffffff;
  --color-bg-tint: #f2f7ff;
  --color-text: #0a1c3d;
  --color-text-sub: #46587a;
  --color-line: #d8e4f5;

  /* iOS 画面モック用 */
  --ios-bg: #f2f2f7;
  --ios-card: #ffffff;
  --ios-sep: #e5e5ea;
  --ios-label-sub: #8e8e93;

  /* タイポグラフィ（VI p.08） */
  --font-en: "Montserrat", sans-serif;
  --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;

  --text-hero: clamp(2rem, 1.2rem + 3.6vw, 3.6rem);
  --text-section: clamp(1.5rem, 1.2rem + 1.4vw, 2.2rem);
  --text-base: clamp(0.95rem, 0.9rem + 0.2vw, 1.05rem);

  --space-section: clamp(4.5rem, 3rem + 5vw, 8rem);
  --radius-card: 16px;
  --duration: 300ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-jp);
  font-size: var(--text-base);
  line-height: 1.85;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.en {
  font-family: var(--font-en);
  letter-spacing: 0.14em;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

/* ---------- ヘッダー（横組みロックアップ / VI p.05） ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-lockup img {
  height: 34px;
  width: auto;
}

.brand-lockup .brand-name {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: var(--color-navy);
  line-height: 1.2;
}

.brand-lockup .brand-name small {
  display: block;
  font-family: var(--font-jp);
  font-weight: 500;
  font-size: 0.6rem;
  letter-spacing: 0.42em;
  color: var(--color-text-sub);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2rem);
}

.header-nav a {
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text-sub);
  transition: color var(--duration) var(--ease);
}

.header-nav a:hover,
.header-nav a:focus-visible {
  color: var(--color-blue);
}

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

/* ---------- ボタン（VI p.16: メインはビビッドブルー） ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-family: var(--font-jp);
  font-weight: 700;
  text-decoration: none;
  border-radius: 10px;
  transition:
    transform var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease),
    background-color var(--duration) var(--ease);
}

.btn-primary {
  background: var(--color-blue);
  color: var(--color-white);
  font-size: 1rem;
  padding: 0.9em 2.2em;
  box-shadow: 0 8px 24px rgba(0, 94, 255, 0.35);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #1a6eff;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 94, 255, 0.45);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(0, 94, 255, 0.3);
}

.btn-small {
  font-size: 0.82rem;
  padding: 0.55em 1.4em;
}

/* ---------- ヒーロー（VI p.13: 濃紺背景＋ネットワーク） ---------- */

.hero {
  position: relative;
  background: linear-gradient(152deg, #060f24 0%, var(--color-navy) 45%, #0d2a5c 100%);
  color: var(--color-white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4rem);
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--color-cyan);
  margin-bottom: 1.4rem;
}

.hero-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-cyan);
}

.hero h1 {
  font-size: var(--text-hero);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.hero h1 .accent-star {
  color: var(--color-gold);
  font-size: 0.6em;
  vertical-align: 0.35em;
  margin: 0 0.15em;
}

.hero-lead {
  margin-top: 1.6rem;
  font-size: clamp(0.95rem, 0.9rem + 0.3vw, 1.1rem);
  color: #b9cbe8;
  max-width: 34em;
}

.hero-cta {
  margin-top: 2.4rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero-cta-note {
  font-size: 0.78rem;
  color: #7e94b8;
}

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

@media (max-width: 860px) {
  .hero .container {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    order: 2;
  }
}

/* ---------- セクション共通 ---------- */

.section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.section-tinted {
  background: var(--color-bg-tint);
}

.section-head {
  max-width: 640px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.26em;
  color: var(--color-blue);
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}

.section-label::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--color-blue);
}

.section-head h2 {
  font-size: var(--text-section);
  font-weight: 900;
  line-height: 1.45;
  letter-spacing: 0.02em;
}

.section-head p {
  margin-top: 1rem;
  color: var(--color-text-sub);
}

/* ---------- 特徴カード ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 1.75rem);
}

@media (max-width: 860px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  padding: 2rem 1.75rem 1.9rem;
  transition:
    transform var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease),
    border-color var(--duration) var(--ease);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-cyan);
  box-shadow: 0 16px 40px rgba(10, 28, 61, 0.1);
}

.feature-card .feature-num {
  position: absolute;
  top: 1.6rem;
  right: 1.6rem;
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-cyan);
}

.feature-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 1.4rem;
}

.feature-card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
  line-height: 1.5;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-sub);
}

/* ---------- アプリ画面（iPhone モック） ---------- */

.screens-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}

@media (max-width: 860px) {
  .screens-grid {
    grid-template-columns: 1fr;
    max-width: 340px;
    margin: 0 auto;
  }
}

.screen-item figcaption {
  margin-top: 1.4rem;
  text-align: center;
}

.screen-item figcaption strong {
  display: block;
  font-size: 1rem;
  font-weight: 700;
}

.screen-item figcaption span {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.82rem;
  color: var(--color-text-sub);
}

/* iPhone フレーム */

.phone {
  position: relative;
  margin: 0 auto;
  width: min(280px, 100%);
  aspect-ratio: 9 / 19;
  background: #10131a;
  border-radius: 42px;
  padding: 10px;
  box-shadow:
    0 24px 60px rgba(10, 28, 61, 0.28),
    inset 0 0 0 2px #2c3140;
}

.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  background: var(--ios-bg);
  color: var(--color-text);
  border-radius: 33px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.phone-island {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 76px;
  height: 20px;
  background: #10131a;
  border-radius: 12px;
  z-index: 5;
}

/* iOS 画面モック内部 */

.ios-nav {
  padding: 36px 14px 8px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  background: var(--ios-bg);
}

.ios-nav .ios-title {
  font-size: 0.86rem;
  font-weight: 700;
}

.ios-nav .ios-next {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-blue);
}

.ios-body {
  flex: 1;
  padding: 6px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
}

.ios-section-label {
  font-size: 0.56rem;
  letter-spacing: 0.06em;
  color: var(--ios-label-sub);
  text-transform: uppercase;
  padding: 4px 12px 0;
}

.ios-card {
  background: var(--ios-card);
  border-radius: 10px;
  padding: 10px 12px;
}

.ios-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  padding: 6px 0;
}

.ios-row + .ios-row {
  border-top: 0.5px solid var(--ios-sep);
}

/* ホイールピッカー風 */

.ios-wheel {
  text-align: center;
  font-size: 0.78rem;
  color: var(--ios-label-sub);
  line-height: 1.9;
}

.ios-wheel .wheel-selected {
  color: var(--color-text);
  font-weight: 700;
  font-size: 0.88rem;
  background: rgba(120, 120, 128, 0.12);
  border-radius: 7px;
  padding: 2px 0;
}

/* トグル */

.ios-toggle {
  width: 40px;
  height: 24px;
  border-radius: 12px;
  background: #34c759;
  position: relative;
  flex-shrink: 0;
}

.ios-toggle::after {
  content: "";
  position: absolute;
  top: 2px;
  right: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
}

.ios-toggle.off {
  background: rgba(120, 120, 128, 0.32);
}

.ios-toggle.off::after {
  right: auto;
  left: 2px;
}

/* セグメント */

.ios-segment {
  display: flex;
  background: rgba(120, 120, 128, 0.12);
  border-radius: 8px;
  padding: 2px;
  font-size: 0.68rem;
}

.ios-segment span {
  flex: 1;
  text-align: center;
  padding: 4px 0;
  border-radius: 6px;
  color: var(--color-text-sub);
}

.ios-segment .seg-active {
  background: #fff;
  color: var(--color-text);
  font-weight: 700;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

/* 手相撮影画面 */

.palm-drop {
  flex: 1;
  border: 1.5px dashed #b3c4de;
  border-radius: 12px;
  background: #eef3fb;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px;
  text-align: center;
}

.palm-drop svg {
  width: 44px;
  height: 44px;
}

.palm-drop p {
  font-size: 0.66rem;
  color: var(--color-text-sub);
  line-height: 1.6;
}

.ios-cta {
  background: var(--color-blue);
  color: #fff;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: 10px;
  padding: 10px 0;
}

.ios-cta.disabled-look {
  background: #aecbff;
}

/* 結果画面 */

.result-chart-title {
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.result-lines {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.result-line {
  display: flex;
  gap: 6px;
  align-items: center;
  font-size: 0.62rem;
}

.result-line .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.result-text {
  font-size: 0.6rem;
  line-height: 1.75;
  color: var(--color-text-sub);
}

/* バナー広告プレースホルダ */

.ios-ad {
  height: 26px;
  background: #e2e8f2;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.54rem;
  letter-spacing: 0.12em;
  color: var(--ios-label-sub);
  flex-shrink: 0;
}

/* ---------- 使い方ステップ ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 2.5vw, 2rem);
  counter-reset: step;
  position: relative;
}

@media (max-width: 860px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

.step {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-card);
  padding: 2.1rem 1.75rem 1.9rem;
  border: 1px solid var(--color-line);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-white);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 1.2rem;
}

.step:nth-child(2) .step-num {
  background: var(--color-blue);
}

.step:nth-child(3) .step-num {
  background: var(--color-cyan);
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.step p {
  font-size: 0.88rem;
  color: var(--color-text-sub);
}

.step-time {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-turquoise);
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 0.15em 0.9em;
}

/* ---------- プライバシー（濃紺バンド） ---------- */

.privacy-band {
  position: relative;
  background: linear-gradient(140deg, #071431 0%, var(--color-navy) 55%, #0c2450 100%);
  color: var(--color-white);
  overflow: hidden;
}

.privacy-band .container {
  position: relative;
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

@media (max-width: 860px) {
  .privacy-band .container {
    grid-template-columns: 1fr;
  }
}

.privacy-band .section-label {
  color: var(--color-cyan);
}

.privacy-band .section-label::before {
  background: var(--color-cyan);
}

.privacy-band h2 {
  font-size: var(--text-section);
  font-weight: 900;
  line-height: 1.5;
}

.privacy-band h2 .gold {
  color: var(--color-gold);
}

.privacy-band > .hero-bg {
  opacity: 0.5;
}

.privacy-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.privacy-list li {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  font-size: 0.92rem;
  color: #c3d3ec;
}

.privacy-list li svg {
  flex-shrink: 0;
  margin-top: 0.35em;
}

.privacy-list li strong {
  color: var(--color-white);
}

/* ---------- 注意事項・CTA ---------- */

.closing {
  text-align: center;
}

.closing .app-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  margin: 0 auto 1.6rem;
  box-shadow: 0 12px 32px rgba(10, 28, 61, 0.22);
}

.closing h2 {
  font-size: var(--text-section);
  font-weight: 900;
  line-height: 1.5;
}

.closing p {
  margin-top: 1rem;
  color: var(--color-text-sub);
}

.closing .hero-cta {
  justify-content: center;
}

.disclaimer {
  margin-top: 3.5rem;
  font-size: 0.75rem;
  color: var(--color-text-sub);
  border-top: 1px solid var(--color-line);
  padding-top: 1.5rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- フッター ---------- */

.site-footer {
  background: var(--color-navy);
  color: #9db1d1;
  padding: 3rem 0 2rem;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
}

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

.footer-brand img {
  height: 30px;
  width: auto;
  background: var(--color-white);
  border-radius: 6px;
  padding: 2px 4px;
}

.footer-brand .brand-name {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--color-white);
}

.footer-links {
  display: flex;
  gap: 1.75rem;
  font-size: 0.8rem;
}

.footer-links a {
  color: #9db1d1;
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-cyan);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.25rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.72rem;
}

.footer-tagline {
  font-family: var(--font-en);
  letter-spacing: 0.18em;
  font-size: 0.62rem;
  text-transform: uppercase;
}

/* ---------- モーション設定 ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}