/* ==========================================================================
   Jitsuri - WordPress Speed Tuning Lab
   Mechanic & Precision HUD Theme (超軽量・高パフォーマンスCSS)
   ========================================================================== */

:root {
  --color-bg: #07080c;
  --color-bg-card: #0d1017;
  --color-bg-box: #131722;
  --color-border: #1f2638;
  --color-border-bright: #323d5a;
  --color-text-main: #f1f5f9;
  --color-text-sub: #94a3b8;
  --color-text-muted: #64748b;
  --color-accent: #ff334b;
  --color-accent-hover: #ff4d63;
  --color-accent-dim: rgba(255, 51, 75, 0.12);
  --color-accent-glow: rgba(255, 51, 75, 0.4);
  --color-cyan: #06b6d4;
  --color-green: #10b981;
  --color-green-dim: rgba(16, 185, 129, 0.12);
  --color-yellow: #f59e0b;
  --radius-sm: 4px;
  --radius-md: 8px;
  --font-family: "Inter", "Noto Sans JP", -apple-system, sans-serif;
  --font-hud: "Chakra Petch", "Inter", monospace;
  --transition: 0.15s ease-out;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body.mechanic-theme {
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-family);
  line-height: 1.65;
  letter-spacing: 0.02em;
  overflow-x: hidden;
  position: relative;
}

/* メカニックHUD グリッド & 背景 */
.hud-grid-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(to right, rgba(31, 38, 56, 0.25) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 38, 56, 0.25) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.hud-scanline {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%);
  background-size: 100% 4px;
  pointer-events: none;
  z-index: 1;
  opacity: 0.6;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

.section {
  padding: 100px 0;
  position: relative;
  z-index: 2;
}

/* タイポグラフィ・ユーティリティ */
.text-center { text-align: center; }
.text-accent { color: var(--color-accent) !important; }
.text-red { color: #ff4458 !important; }
.text-green { color: var(--color-green) !important; }
.text-yellow { color: var(--color-yellow) !important; }
.text-hud { color: var(--color-cyan) !important; font-family: var(--font-hud); }
.text-muted { color: var(--color-text-muted) !important; }
.font-bold { font-weight: 700 !important; }
.font-extrabold { font-weight: 900 !important; }
.font-mono { font-family: var(--font-hud), monospace !important; }

.section-tag {
  display: inline-block;
  font-family: var(--font-hud);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-cyan);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.section-desc {
  color: var(--color-text-sub);
  font-size: 1.05rem;
  max-width: 680px;
  margin: 0 auto;
}

/* メカニック HUD パネル装飾 */
.hud-panel {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.hud-box {
  background: var(--color-bg-box);
  border: 1px solid var(--color-border);
}

.hud-corner {
  position: absolute;
  color: var(--color-cyan);
  font-family: var(--font-hud);
  font-size: 14px;
  line-height: 1;
  opacity: 0.7;
  pointer-events: none;
}
.hud-corner-tl { top: -7px; left: -7px; }
.hud-corner-tr { top: -7px; right: -7px; }
.hud-corner-bl { bottom: -7px; left: -7px; }
.hud-corner-br { bottom: -7px; right: -7px; }

/* ボタン群 (メカニック調・シャープ) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-hud);
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-align: center;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-hud {
  position: relative;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 6px 28px var(--color-accent-glow);
  transform: translateY(-2px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  color: #fff;
  border: 1px solid var(--color-border-bright);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-cyan);
  color: var(--color-cyan);
}

.btn-accent {
  background: #181f2f;
  border: 1px solid var(--color-cyan);
  color: var(--color-cyan);
}

.btn-accent:hover {
  background: var(--color-cyan);
  color: #000;
}

.btn-large {
  padding: 18px 36px;
  font-size: 1.05rem;
}

.btn-sm {
  padding: 10px 16px;
  font-size: 0.85rem;
}

.btn-block { width: 100%; }
.icon-arrow, .icon-external { width: 18px; height: 18px; }

/* ヘッダー */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 8, 12, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-mark {
  font-family: var(--font-hud);
  font-size: 0.75rem;
  color: var(--color-cyan);
  background: rgba(6, 182, 212, 0.1);
  padding: 2px 6px;
  border-radius: 2px;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.logo-accent {
  font-family: var(--font-hud);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.logo-sub {
  font-size: 0.75rem;
  color: var(--color-text-sub);
  font-weight: 600;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-item {
  color: var(--color-text-sub);
  font-size: 0.85rem;
  font-weight: 600;
}

.nav-item:hover { color: #fff; }

.nav-btn-cta {
  font-family: var(--font-hud);
  background: var(--color-accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-btn-cta:hover {
  background: var(--color-accent-hover);
}

/* ==========================================================================
   ヒーローセクション (100vh 構成)
   ========================================================================== */
.hero-full-screen {
  min-height: calc(100vh - 65px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 0 60px;
  position: relative;
  text-align: center;
}

.hero-container {
  padding: 40px 20px;
}

.hero-status-bar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-hud);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border-bright);
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 10px var(--color-green);
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-sub);
  max-width: 720px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.hero-metrics-pill {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-md);
  padding: 16px 36px;
  gap: 36px;
  background: #0d1017;
  border: 1px solid var(--color-border-bright);
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.metric-lbl {
  font-family: var(--font-hud);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

.metric-val {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin-top: 2px;
}

.metric-divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
}

/* スクロールキュー */
.scroll-cue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-top: 36px;
  color: var(--color-text-muted);
  font-family: var(--font-hud);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  opacity: 0.8;
  transition: opacity var(--transition);
}

.scroll-cue:hover { opacity: 1; color: var(--color-cyan); }

.scroll-arrow {
  width: 12px;
  height: 12px;
  border-bottom: 2px solid var(--color-cyan);
  border-right: 2px solid var(--color-cyan);
  transform: rotate(45deg);
  animation: bounceDown 1.5s infinite;
}

@keyframes bounceDown {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(45deg); }
  40% { transform: translateY(6px) rotate(45deg); }
  60% { transform: translateY(3px) rotate(45deg); }
}

/* ==========================================================================
   AD LOSS CALCULATOR (潜在損失シミュレーター)
   ========================================================================== */
.calc-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, #0a0d14 100%);
}

.calc-card {
  padding: 44px;
  border-radius: var(--radius-md);
  margin-top: 40px;
}

.calc-step-box {
  background: #080a0f;
  border: 1px solid var(--color-border-bright);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  gap: 20px;
  margin-bottom: 36px;
}

.step-badge {
  flex-shrink: 0;
  width: 72px;
  height: 48px;
  background: rgba(255, 51, 75, 0.1);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-hud);
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.step-content { flex: 1; }

.step-label {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.step-help {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.url-input-row {
  display: flex;
  gap: 12px;
}

.hud-input {
  background: #080a0f;
  border: 1px solid var(--color-border-bright);
  color: #fff;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition);
}

.hud-input:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 10px rgba(6, 182, 212, 0.25);
}

.url-msg {
  font-size: 0.85rem;
  margin-top: 8px;
  min-height: 1.4em;
  font-family: var(--font-hud);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 36px;
}

.calc-input-block {
  border-radius: var(--radius-sm);
  padding: 28px;
}

.score-display-wrap {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 16px 0 12px;
}

.score-big {
  font-size: 3.8rem;
  font-weight: 900;
  line-height: 1;
}

.score-unit {
  font-family: var(--font-hud);
  font-size: 1rem;
  color: var(--color-text-sub);
  letter-spacing: 0.1em;
}

.status-pill {
  font-family: var(--font-hud);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-left: auto;
}

.status-danger {
  background: rgba(255, 68, 88, 0.15);
  color: #ff4458;
  border: 1px solid rgba(255, 68, 88, 0.4);
}

.status-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-yellow);
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.status-success {
  background: var(--color-green-dim);
  color: var(--color-green);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.custom-range {
  width: 100%;
  accent-color: var(--color-accent);
  cursor: pointer;
  height: 6px;
  background: #1a2030;
  border-radius: 3px;
  margin: 16px 0 8px;
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-hud);
}

.budget-input-wrap {
  position: relative;
  margin: 16px 0 16px;
}

.currency-symbol {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-text-muted);
}

.budget-input {
  width: 100%;
  padding-left: 42px;
  font-size: 1.5rem;
  font-weight: 900;
  color: #fff;
}

.budget-presets {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.preset-btn {
  background: #0a0d14;
  border: 1px solid var(--color-border);
  color: var(--color-text-sub);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: var(--font-hud);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}

.preset-btn:hover, .preset-btn.active {
  background: rgba(6, 182, 212, 0.15);
  border-color: var(--color-cyan);
  color: var(--color-cyan);
}

.hud-display {
  background: #06080d;
  border: 1px solid var(--color-border-bright);
  border-radius: var(--radius-sm);
  padding: 32px;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px;
  border-bottom: 1px dashed var(--color-border-bright);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.result-label {
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
}

.result-caption {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-family: var(--font-hud);
}

.result-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.result-card {
  padding: 24px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
}

.danger-card {
  border-left: 3px solid var(--color-accent);
}

.success-card {
  border-left: 3px solid var(--color-green);
}

.rc-label {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  margin-bottom: 8px;
  font-weight: 600;
}

.rc-value {
  font-size: 2.2rem;
  font-weight: 900;
  color: #ff4458;
  line-height: 1.1;
  margin-bottom: 8px;
}

.rc-sub {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: auto;
}

.result-cta-box {
  text-align: center;
  padding-top: 16px;
}

.cta-box-text {
  font-size: 0.95rem;
  color: var(--color-text-sub);
  margin-bottom: 16px;
}

/* ==========================================================================
   体感スピードデモ
   ========================================================================== */
.speed-section { background: var(--color-bg); }

.demo-controller {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin: 36px 0 44px;
}

.btn-demo-normal {
  background: #181d2c;
  border: 1px solid var(--color-border-bright);
  color: #cbd5e1;
}

.btn-demo-normal:hover {
  background: #232a40;
  color: #fff;
}

.btn-demo-fast {
  background: #0f2420;
  border: 1px solid var(--color-green);
  color: var(--color-green);
}

.btn-demo-fast:hover {
  background: var(--color-green);
  color: #000;
}

.btn-demo-compare {
  background: var(--color-accent);
  color: #fff;
}

.demo-viewport-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.demo-device-card {
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.demo-device-card.top-tier {
  border-color: var(--color-green);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
}

.device-header {
  padding: 14px 20px;
  background: #0a0d14;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
}

.device-badge {
  font-family: var(--font-hud);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 2px;
}

.badge-normal {
  background: #192033;
  color: #cbd5e1;
}

.badge-fast {
  background: var(--color-green-dim);
  color: var(--color-green);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.device-timer {
  font-size: 1.15rem;
  font-weight: 900;
  color: #cbd5e1;
}

.device-screen {
  height: 290px;
  background: #05060a;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
}

.screen-idle-state {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-family: var(--font-hud);
}

.screen-loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.green-spinner { border-top-color: var(--color-green); }

@keyframes spin { to { transform: rotate(360deg); } }

.loading-label {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  font-family: var(--font-hud);
}

.loading-stress-notice {
  font-size: 0.75rem;
  color: #ff4458;
  background: rgba(255, 68, 88, 0.1);
  border: 1px solid rgba(255, 68, 88, 0.3);
  padding: 4px 10px;
  border-radius: 2px;
}

.screen-content-state {
  width: 100%;
  animation: fadeIn 0.2s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.mock-hero {
  background: #0b0e17;
  border: 1px solid var(--color-border);
  padding: 20px;
  border-radius: var(--radius-sm);
  text-align: center;
  margin-bottom: 12px;
}

.mock-hero-fast { border-color: rgba(16, 185, 129, 0.4); }

.mock-tag {
  font-family: var(--font-hud);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.mock-h1 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.mock-cta {
  display: inline-block;
  background: #1f273d;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 2px;
}

.cta-fast { background: var(--color-green); color: #000; }
.mock-rendered-pill { font-size: 0.8rem; font-weight: 700; text-align: center; }

/* ==========================================================================
   アーキテクチャ & ロジック
   ========================================================================== */
.logic-section { background: #07090e; }

.table-container {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  margin: 40px 0 60px;
}

.logic-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

.logic-table th, .logic-table td {
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.logic-table th {
  background: #0c0f17;
  color: var(--color-text-sub);
  font-weight: 700;
  font-size: 0.8rem;
  font-family: var(--font-hud);
}

.row-danger { background: rgba(255, 68, 88, 0.04); }
.row-critical { background: rgba(255, 68, 88, 0.08); }

.tag-status {
  display: inline-block;
  font-family: var(--font-hud);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 2px;
}

.tag-good { background: var(--color-green-dim); color: var(--color-green); }
.tag-warn { background: rgba(245, 158, 11, 0.15); color: var(--color-yellow); }
.tag-bad { background: rgba(255, 68, 88, 0.15); color: #ff4458; }
.tag-critical { background: #ff4458; color: #fff; }

.table-footer-note {
  padding: 12px 24px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.feature-card {
  border-radius: var(--radius-sm);
  padding: 32px 28px;
  transition: transform var(--transition);
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-border-bright);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon {
  width: 24px;
  height: 24px;
  color: var(--color-cyan);
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: #fff;
}

.feature-body {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  line-height: 1.65;
}

.benchmark-box {
  border-radius: var(--radius-sm);
  padding: 36px;
}

.benchmark-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 24px;
  text-align: center;
}

.bar-group { margin-bottom: 24px; }

.bar-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.bar-track {
  width: 100%;
  height: 14px;
  background: #080a0f;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  transition: width 0.6s ease-in-out;
}

.bar-blue { background: #3b82f6; }

.benchmark-caption {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 16px;
}

/* ==========================================================================
   よくある質問 (FAQ)
   ========================================================================== */
.faq-section { background: var(--color-bg); }

.faq-list {
  max-width: 820px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item.open {
  border-color: var(--color-cyan);
}

.faq-question {
  width: 100%;
  padding: 22px 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 16px;
}

.faq-icon {
  font-family: var(--font-hud);
  font-size: 1.4rem;
  color: var(--color-cyan);
  transition: transform var(--transition);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease-out;
  padding: 0 24px;
  color: var(--color-text-sub);
  font-size: 0.92rem;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 250px;
  padding-bottom: 22px;
}

/* ==========================================================================
   お問い合わせフォーム
   ========================================================================== */
.contact-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, #0a0d14 100%);
}

.contact-card {
  max-width: 760px;
  margin: 0 auto;
  border-radius: var(--radius-sm);
  padding: 48px 36px;
}

.contact-form { margin-top: 36px; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: #cbd5e1;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-hud);
}

.badge-req {
  font-size: 0.65rem;
  background: rgba(255, 51, 75, 0.15);
  color: var(--color-accent);
  padding: 2px 6px;
  border-radius: 2px;
  border: 1px solid rgba(255, 51, 75, 0.4);
}

.input-textarea {
  resize: vertical;
}

.sync-summary-box {
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 24px;
}

.sync-title {
  font-family: var(--font-hud);
  font-size: 0.75rem;
  color: var(--color-text-sub);
  margin-bottom: 8px;
}

.sync-tags {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.sync-tag {
  font-family: var(--font-hud);
  font-size: 0.85rem;
  background: #080a0f;
  padding: 4px 10px;
  border-radius: 2px;
  border: 1px solid var(--color-border);
}

.form-submit-wrap {
  text-align: center;
  margin-top: 10px;
}

.form-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 12px;
}

.form-success-box {
  text-align: center;
  padding: 40px 20px;
  border: 1px solid var(--color-green);
  background: var(--color-green-dim);
  border-radius: var(--radius-sm);
  animation: fadeIn 0.3s ease-out;
}

.success-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-green);
  color: #000;
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-weight: 900;
}

.success-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}

.success-body {
  font-size: 0.95rem;
  color: var(--color-text-sub);
}

/* フッター */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 36px 0;
  background: #040508;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-hud);
}

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

.footer-nav a {
  font-family: var(--font-hud);
  font-size: 0.8rem;
  color: var(--color-text-sub);
}

.footer-nav a:hover { color: #fff; }

/* フローティングCTAバー */
.floating-cta-bar {
  position: fixed;
  bottom: -80px;
  left: 0;
  width: 100%;
  background: rgba(13, 16, 23, 0.95);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border-bright);
  padding: 12px 24px;
  z-index: 99;
  transition: bottom 0.25s ease-out;
  box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.6);
}

.floating-cta-bar.visible { bottom: 0; }

.floating-cta-inner {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.floating-info { display: flex; flex-direction: column; }
.floating-label { font-size: 0.7rem; color: var(--color-text-muted); font-family: var(--font-hud); }
.floating-loss { font-size: 1.15rem; font-weight: 900; line-height: 1.1; }

/* レスポンシブ */
@media (max-width: 900px) {
  .hero-title { font-size: 2.5rem; }
  .calc-grid, .result-cards-row, .demo-viewport-grid, .feature-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .hero-full-screen { min-height: auto; padding: 70px 0 50px; }
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-metrics-pill { flex-direction: column; gap: 14px; padding: 18px; }
  .metric-divider { width: 40px; height: 1px; }
  .calc-card, .contact-card { padding: 24px 16px; }
  .url-input-row, .form-grid { grid-template-columns: 1fr; flex-direction: column; }
  .nav-links .nav-item { display: none; }
  .desktop-only { display: none; }
}