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

:root {
  --bg: #F4F1EC;
  --bg-alt: #0F1D2B;
  --fg: #0F1D2B;
  --fg-light: #F4F1EC;
  --accent: #F5A623;
  --accent-dark: #D4870E;
  --muted: #7A8A99;
  --border: rgba(15,29,43,0.12);
  --font-display: 'Bebas Neue', 'Arial Narrow', sans-serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244,241,236,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.brand-name {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--fg);
}

.header-nav {
  display: flex;
  align-items: center;
}

.nav-shop-link {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-decoration: none;
  padding: 6px 14px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
  margin-right: 16px;
}
.nav-shop-link:hover {
  background: var(--accent);
  color: var(--bg-alt);
}

.nav-tagline {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Hero */
.hero {
  background: var(--bg-alt);
  color: var(--fg-light);
  padding: 80px 32px 96px;
  overflow: hidden;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(72px, 8vw, 96px);
  line-height: 0.95;
  letter-spacing: 0.01em;
  color: var(--fg-light);
  margin-bottom: 28px;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(244,241,236,0.72);
  max-width: 440px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
}

.stat { display: flex; flex-direction: column; gap: 2px; }

.stat-value {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.stat-label {
  font-size: 12px;
  color: rgba(244,241,236,0.5);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: rgba(244,241,236,0.15);
}

/* Hero Product Image */
.hero-right {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-product-img {
  width: 100%;
  max-width: 480px;
  height: auto;
  display: block;
  border-radius: 12px;
}

/* Power Options */
.power-options {
  padding: 96px 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 60px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--fg);
  margin-bottom: 16px;
}

.section-body {
  font-size: 17px;
  color: var(--muted);
  max-width: 500px;
  margin-bottom: 56px;
  line-height: 1.7;
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.option-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
}

.option-recharge .option-icon { color: var(--accent); }
.option-battery .option-icon { color: #3A9E6E; }

.option-card h3 {
  font-family: var(--font-display);
  font-size: 26px;
  letter-spacing: 0.03em;
  margin-bottom: 20px;
  color: var(--fg);
}

.option-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.option-card ul li {
  font-size: 15px;
  color: #4A5A66;
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}

.option-recharge ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.option-battery ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: #3A9E6E;
  transform: rotate(45deg);
}

.options-callout {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #FFF8EC;
  border: 1px solid rgba(245,166,35,0.25);
  border-radius: 12px;
  padding: 20px 24px;
  font-size: 15px;
  color: #7A5A1A;
  line-height: 1.5;
}

/* Scenarios */
.scenarios {
  background: var(--bg-alt);
  color: var(--fg-light);
  padding: 96px 32px;
}

.scenarios .section-label { color: var(--accent); }
.scenarios .section-title { color: var(--fg-light); }
.scenarios .section-body { color: rgba(244,241,236,0.6); }

.scenarios-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.scenario {
  border-left: 2px solid rgba(245,166,35,0.3);
  padding-left: 28px;
}

.scenario-number {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 12px;
}

.scenario h3 {
  font-family: var(--font-display);
  font-size: 28px;
  letter-spacing: 0.02em;
  color: var(--fg-light);
  margin-bottom: 12px;
}

.scenario p {
  font-size: 15px;
  color: rgba(244,241,236,0.6);
  line-height: 1.7;
}

/* Philosophy */
.philosophy {
  padding: 96px 32px;
  background: var(--bg);
}

.philosophy-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.philosophy-mark {
  width: 48px;
  height: 48px;
  margin: 0 auto 32px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(245,166,35,0.1);
}

.philosophy-quote {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: 0.01em;
  color: var(--fg);
  margin-bottom: 32px;
}

.philosophy-body {
  font-size: 17px;
  color: #4A5A66;
  line-height: 1.75;
  margin-bottom: 16px;
}

/* Closing */
.closing {
  background: var(--accent);
  padding: 96px 32px;
  text-align: center;
}

.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(64px, 10vw, 120px);
  line-height: 0.9;
  letter-spacing: 0.02em;
  color: var(--bg-alt);
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 20px;
  color: rgba(15,29,43,0.75);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Footer */
.site-footer {
  background: var(--bg-alt);
  color: rgba(244,241,236,0.5);
  padding: 32px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.05em;
  color: rgba(244,241,236,0.8);
}

.footer-copy {
  font-size: 13px;
  color: rgba(244,241,236,0.35);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .hero-right { order: -1; }
  .fan-illustration { width: 200px; height: 260px; }
  .fan-body { width: 140px; height: 140px; }
  .fan-blade { width: 52px; height: 13px; margin-left: -26px; }
  .handle-grip { width: 36px; height: 60px; }
  .handle-cap { width: 42px; }
  .hero { padding: 64px 24px 80px; }
  .options-grid { grid-template-columns: 1fr; }
  .scenarios-grid { grid-template-columns: 1fr; gap: 32px; }
  .power-options, .scenarios, .philosophy { padding: 64px 24px; }
  .closing { padding: 64px 24px; }
  .hero-stats { gap: 20px; }
  .stat-value { font-size: 22px; }
  .section-title { font-size: 40px; }
}