/* =====================================================
   MyGIS LP — スタイルシート（ライトテーマリデザイン）
   参考: felt.com / mapbox.com のデザイン手法
   ===================================================== */

/* ---------- リセット & ベース ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* ライトテーマ */
  --bg:           #f1f5f9;   /* ページ全体の背景: 薄いグレー */
  --bg-surface:   #e8edf3;   /* 一段暗いサーフェス */
  --bg-surface2:  #dde3ec;
  --bg-card:      #ffffff;   /* カードは白で背景から浮かせる */
  --border:       rgba(0,0,0,0.09);
  --border-hover: rgba(0,0,0,0.18);

  /* テキスト */
  --text:         #0f172a;
  --text-muted:   #475569;
  --text-faint:   #94a3b8;

  /* アクセント: ティール（地図・GIS の定番色） */
  --accent:       #0d9488;
  --accent-dark:  #0f766e;
  --accent-dim:   rgba(13,148,136,0.08);
  --accent-glow:  rgba(13,148,136,0.20);
  --accent-light: #ccfbf1;

  --blue:         #3b82f6;
  --blue-dim:     rgba(59,130,246,0.08);

  --radius-sm:    6px;
  --radius:       14px;
  --radius-lg:    24px;

  --shadow-sm:    0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow:       0 4px 16px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
  --shadow-lg:    0 20px 60px rgba(0,0,0,0.12), 0 8px 24px rgba(0,0,0,0.06);
  --shadow-accent: 0 8px 32px rgba(13,148,136,0.24);

  --font: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono', 'Consolas', monospace;

  --max-w: 1200px;
  --gap: clamp(16px, 3vw, 32px);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap);
}

/* ---------- タイポグラフィ ---------- */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--text);
}
h1 { font-size: clamp(2.6rem, 6vw, 4.8rem); font-weight: 900; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.05rem, 2vw, 1.3rem); font-weight: 700; }
h4 { font-size: 0.95rem; font-weight: 700; }

.eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.accent { color: var(--accent); }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-accent);
}
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}
.btn-sm  { padding: 7px 14px; font-size: 0.8rem; }
.btn-lg  { padding: 15px 36px; font-size: 1rem; }
.btn-disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: not-allowed;
}
.btn-white {
  background: #fff;
  color: var(--accent);
  box-shadow: var(--shadow);
}
.btn-white:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

kbd {
  display: inline-block;
  padding: 2px 7px;
  background: var(--bg-surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 0.8em;
  color: var(--text-muted);
}

/* ---------- ナビ ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.3s, box-shadow 0.3s;
}
.nav-scrolled {
  background: rgba(241,245,249,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text);
}
.nav-logo-icon { color: var(--accent); font-size: 1.2rem; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}
.nav-links a { transition: color 0.2s; }
.nav-links a:hover { color: var(--accent); }

/* ---------- セクション共通 ---------- */
.section {
  padding: clamp(72px, 10vw, 128px) 0;
  position: relative;
}
.section-surface { background: var(--bg-surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-accent  { background: var(--accent); }

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto clamp(48px, 6vw, 80px);
}
.section-sub {
  color: var(--text-muted);
  margin-top: 16px;
  font-size: 1.05rem;
  line-height: 1.75;
}

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
  /* 地図グリッドのような背景 */
  background-color: #e8edf3;
  background-image:
    linear-gradient(rgba(0,0,0,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* ヒーロー上部のグラデーションマスク */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(255,255,255,0.0) 0%, rgba(255,255,255,0.95) 70%);
  pointer-events: none;
}

/* ティールのアクセント光 */
.hero::after {
  content: '';
  position: absolute;
  top: -10%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(13,148,136,0.07) 0%, transparent 70%);
  pointer-events: none;
}

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

.hero-text { max-width: 560px; }

/* GPS座標デコレーション（felt.com スタイル） */
.hero-coords {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 5px 12px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}
.hero-coords-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.7); }
}

.hero-title { margin-bottom: 24px; }

.hero-title .line2 {
  /* グラデーションテキスト */
  background: linear-gradient(135deg, var(--accent) 0%, #0891b2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.badge {
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(13,148,136,0.18);
}

/* ヒーロースクリーンショット */
.hero-visual { position: relative; }

.hero-screenshot-wrap {
  position: relative;
}
.hero-screenshot-wrap::before {
  /* 背景のぼかしシャドウ */
  content: '';
  position: absolute;
  inset: 10% 5%;
  background: linear-gradient(135deg, rgba(13,148,136,0.15), rgba(59,130,246,0.10));
  border-radius: var(--radius-lg);
  filter: blur(32px);
  z-index: 0;
}

/* ---------- スクリーンショット枠 ---------- */
.screenshot-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  box-shadow: var(--shadow-lg);
  z-index: 1;
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ブラウザ風ヘッダーバー */
.screenshot-frame::before {
  content: '● ● ●';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 32px;
  background: var(--bg-surface2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 14px;
  font-size: 8px;
  color: var(--text-faint);
  letter-spacing: 4px;
  z-index: 2;
}

.screenshot-frame .screenshot {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 32px; /* ブラウザバー分 */
}

/* プレースホルダー（画像なし時） */
.screenshot-frame:not(:has(img[complete])) [data-placeholder] {
  position: absolute;
  inset: 32px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--text-faint);
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* ---------- 統計バー（hero直下） ---------- */
.stats-bar {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
  box-shadow: var(--shadow-sm);
}
.stats-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.stat-value {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: -0.04em;
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* ---------- 課題カード ---------- */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  opacity: 0;
  transform: translateY(20px);
}
.problem-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.2s, box-shadow 0.2s;
}
.problem-card:hover {
  border-color: rgba(13,148,136,0.3);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.problem-icon {
  font-size: 2rem;
  margin-bottom: 16px;
  line-height: 1;
}
.problem-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.problem-card p  { color: var(--text-muted); font-size: 0.9rem; line-height: 1.75; }

/* ---------- 3ステップ ---------- */
.steps {
  display: flex;
  flex-direction: column;
  gap: clamp(56px, 8vw, 104px);
}
.step {
  opacity: 0;
  transform: translateY(24px);
}
.step.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.step-number {
  font-size: 4.5rem;
  font-weight: 900;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
  -webkit-text-stroke: 2px var(--accent);
}
.step-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.step-reverse .step-content { direction: rtl; }
.step-reverse .step-content > * { direction: ltr; }

.step-text h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  margin-bottom: 16px;
}
.step-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.85;
}

.step-screenshot {
  min-height: 280px;
}

/* ---------- 機能グリッド ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  opacity: 0;
  transform: translateY(20px);
}
.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, border-color 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  border-color: rgba(13,148,136,0.3);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.feature-card-wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
}
.feature-card-wide .feature-text { padding: 36px; }
.feature-card-text {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.feature-text h3 { margin-bottom: 10px; font-size: 1.0rem; }
.feature-text p  { color: var(--text-muted); font-size: 0.875rem; line-height: 1.75; }

.feature-screenshot {
  min-height: 260px;
  border-radius: 0;
  border: none;
  border-right: 1.5px solid var(--border);
  background: var(--bg-surface);
}
.feature-screenshot-sm {
  min-height: 200px;
  border-radius: 0;
  border: none;
  border-bottom: 1.5px solid var(--border);
  background: var(--bg-surface);
}
.feature-screenshot::before,
.feature-screenshot-sm::before {
  display: none; /* ブラウザバーなし */
}

/* ---------- 技術セクション（アクセント背景） ---------- */
.section-teal {
  background: linear-gradient(135deg, #0f766e 0%, #0891b2 100%);
  color: white;
}
.section-teal .eyebrow { color: var(--accent-light); }
.section-teal h2      { color: white; }
.section-teal .section-sub { color: rgba(255,255,255,0.75); }

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
  margin-bottom: 48px;
}
.tech-card {
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius);
  padding: 28px;
  backdrop-filter: blur(8px);
  opacity: 0;
  transform: translateY(16px);
  transition: background 0.2s;
}
.tech-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease, background 0.2s;
}
.tech-card:hover { background: rgba(255,255,255,0.16); }
.tech-icon { font-size: 1.8rem; margin-bottom: 12px; }
.tech-card h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 8px; color: white; }
.tech-card p  { color: rgba(255,255,255,0.70); font-size: 0.825rem; line-height: 1.7; }

.cost-banner {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: var(--radius);
  padding: 28px 36px;
}
.cost-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 24px;
}
.cost-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
}
.cost-label  { font-size: 0.72rem; color: rgba(255,255,255,0.6); text-transform: uppercase; letter-spacing: 0.1em; }
.cost-value  { font-size: 1.4rem; font-weight: 900; color: white; }
.cost-live   { color: var(--accent-light); }
.cost-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.20); }

/* ---------- ロードマップ ---------- */
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.roadmap-phase {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(16px);
}
.roadmap-phase.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.roadmap-phase-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.roadmap-phase-header h3 { font-size: 0.95rem; }
.phase-badge {
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  white-space: nowrap;
}
.phase-badge-done   { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(13,148,136,0.2); }
.phase-badge-next   { background: var(--blue-dim); color: var(--blue); border: 1px solid rgba(59,130,246,0.2); }
.phase-badge-future { background: rgba(168,85,247,0.08); color: #7c3aed; border: 1px solid rgba(168,85,247,0.2); }

.roadmap-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.roadmap-list li { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; }

/* ---------- CTA ---------- */
.section-cta {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
}
.cta-inner {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}
.cta-sub {
  color: var(--text-muted);
  margin: 20px 0 32px;
  font-size: 0.95rem;
  line-height: 1.8;
}
.cta-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.cta-step { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-muted); }
.cta-step-num {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cta-arrow { color: var(--text-faint); font-size: 0.9rem; }
.cta-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.cta-note { margin-top: 16px; font-size: 0.75rem; color: var(--text-faint); }

/* ---------- フッター ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  background: var(--bg-card);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy { font-size: 0.8rem; color: var(--text-faint); }

/* =====================================================
   スクロールアニメーション
   ===================================================== */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =====================================================
   レスポンシブ
   ===================================================== */
@media (max-width: 960px) {
  .hero-inner         { grid-template-columns: 1fr; }
  .hero-visual        { display: none; }
  .problem-grid       { grid-template-columns: 1fr; }
  .step-content       { grid-template-columns: 1fr; }
  .step-reverse .step-content { direction: ltr; }
  .features-grid      { grid-template-columns: 1fr; }
  .feature-card-wide  { grid-column: auto; grid-template-columns: 1fr; }
  .feature-card-wide .feature-screenshot { border-right: none; border-bottom: 1.5px solid var(--border); }
  .tech-grid          { grid-template-columns: repeat(2, 1fr); }
  .roadmap-grid       { grid-template-columns: 1fr; }
  .cost-banner-inner  { justify-content: center; }
  .cost-divider       { display: none; }
  .stats-bar-inner    { gap: 24px; }
  .stat-divider       { display: none; }
}

@media (max-width: 640px) {
  .nav-links a:not(.btn) { display: none; }
  .hero { min-height: auto; padding: 90px 0 60px; }
  .hero-actions { flex-direction: column; }
  .tech-grid { grid-template-columns: 1fr; }
  .cta-steps { flex-direction: column; gap: 8px; }
  .cta-arrow { transform: rotate(90deg); }
}