:root {
  --bg: #0a0a0a;
  --bg-card: #111111;
  --fg: #e8e8e8;
  --fg-muted: #888888;
  --accent: #00ff88;
  --accent-dim: rgba(0, 255, 136, 0.08);
  --border: #1a1a1a;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  overflow-x: hidden;
}

.accent {
  color: var(--accent);
}

.section-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent);
  margin-bottom: 24px;
}

/* ——— Hero ——— */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 10% 100px;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-tag {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 32px;
  padding-left: 2px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 32px;
}

.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 56px;
}

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

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  letter-spacing: 0.5px;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.hero-gradient {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.06) 0%, transparent 70%);
  z-index: 1;
  pointer-events: none;
}

/* ——— Pillars ——— */
.pillars {
  padding: 120px 10%;
  border-top: 1px solid var(--border);
}

.pillars-inner {
  max-width: 1100px;
}

.pillars h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 64px;
  max-width: 600px;
}

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.pillar-card {
  background: var(--bg-card);
  padding: 48px 40px;
  position: relative;
  transition: background 0.3s ease;
}

.pillar-card:hover {
  background: #161616;
}

.pillar-num {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.pillar-card h3 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.pillar-card p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 380px;
}

/* ——— Philosophy ——— */
.philosophy {
  padding: 120px 10%;
  border-top: 1px solid var(--border);
}

.philosophy-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 80px;
  max-width: 1100px;
}

.philosophy-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1px;
  margin-bottom: 32px;
}

.philosophy-text p {
  color: var(--fg-muted);
  margin-bottom: 20px;
  max-width: 520px;
}

.philosophy-aside {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-top: 48px;
}

.aside-block {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.aside-block:first-child {
  border-top: 1px solid var(--border);
}

.aside-label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--fg-muted);
  margin-bottom: 6px;
}

.aside-value {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--fg);
}

/* ——— Closing ——— */
.closing {
  padding: 160px 10%;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.closing-inner {
  position: relative;
  z-index: 2;
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.closing-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ——— Footer ——— */
.site-footer {
  padding: 48px 10%;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.footer-line {
  font-size: 14px;
  color: var(--fg-muted);
  letter-spacing: 1px;
}

/* ——— Nav ——— */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 10%;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.5px;
}

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

.nav-link {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--fg);
}

/* ——— Shop Hero ——— */
.shop-hero {
  padding: 80px 10% 60px;
  border-bottom: 1px solid var(--border);
}

.shop-hero-inner {
  max-width: 700px;
}

.shop-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 20px;
}

.shop-sub {
  font-size: 18px;
  color: var(--fg-muted);
  line-height: 1.6;
  max-width: 500px;
}

/* ——— Product Grid ——— */
.shop-grid-section {
  padding: 80px 10%;
}

.shop-grid-inner {
  max-width: 1100px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

/* ——— Product Card ——— */
.product-card {
  background: var(--bg-card);
  padding: 40px 36px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: background 0.3s ease;
}

.product-card:hover {
  background: #141414;
}

.product-badge {
  position: absolute;
  top: 24px;
  right: 24px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(0, 255, 136, 0.2);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 10px;
}

.product-pillar {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.product-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.product-tagline {
  font-size: 15px;
  color: var(--fg-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.product-desc {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 32px;
}

.product-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.product-price {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--fg);
}

/* ——— Buttons ——— */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-muted);
}

.btn-outline:hover {
  border-color: var(--fg);
  color: var(--fg);
}

.btn-checkout {
  background: var(--accent);
  color: #000;
  font-size: 16px;
  padding: 14px 32px;
  width: 100%;
  justify-content: center;
  border-radius: 6px;
  font-weight: 700;
}

.btn-checkout:hover {
  background: #00e87a;
  transform: translateY(-1px);
}

/* ——— Product Detail ——— */
.product-detail-section {
  padding: 60px 10% 80px;
  border-bottom: 1px solid var(--border);
}

.product-detail-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 80px;
  max-width: 1100px;
}

.back-link {
  font-size: 14px;
  color: var(--fg-muted);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 32px;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--fg);
}

.product-pillar-label {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.product-detail-name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 12px;
}

.product-detail-tagline {
  font-size: 18px;
  color: var(--fg-muted);
  margin-bottom: 24px;
}

.product-detail-desc {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ——— Checkout Card ——— */
.product-checkout-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 40px 36px;
  position: sticky;
  top: 80px;
}

.checkout-price {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -2px;
  color: var(--fg);
  margin-bottom: 4px;
}

.checkout-label {
  font-size: 14px;
  color: var(--fg-muted);
  margin-bottom: 28px;
}

.checkout-reassurance {
  font-size: 12px;
  color: var(--fg-muted);
  text-align: center;
  margin-top: 14px;
  letter-spacing: 0.3px;
}

/* ——— What You Get ——— */
.product-contents-section {
  padding: 80px 10%;
}

.product-contents-inner {
  max-width: 700px;
}

.contents-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 32px;
}

.contents-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contents-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  font-size: 16px;
  color: var(--fg);
  line-height: 1.5;
}

.contents-check {
  color: var(--accent);
  font-weight: 700;
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ——— Footer Links ——— */
.footer-links {
  display: flex;
  gap: 20px;
  align-items: center;
}

.footer-link {
  font-size: 14px;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--fg);
}

/* ——— Responsive ——— */
@media (max-width: 768px) {
  .hero {
    padding: 100px 7% 80px;
    min-height: auto;
  }

  .hero h1 {
    font-size: 2.6rem;
    letter-spacing: -1px;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
  }

  .stat-divider {
    display: none;
  }

  .pillars {
    padding: 80px 7%;
  }

  .pillar-grid {
    grid-template-columns: 1fr;
  }

  .pillar-card {
    padding: 36px 28px;
  }

  .philosophy {
    padding: 80px 7%;
  }

  .philosophy-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .philosophy-aside {
    padding-top: 0;
  }

  .closing {
    padding: 100px 7%;
  }

  .closing h2 {
    font-size: 2rem;
  }

  .site-footer {
    padding: 36px 7%;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .nav-inner {
    padding: 14px 7%;
  }

  .shop-hero {
    padding: 60px 7% 48px;
  }

  .shop-grid-section {
    padding: 60px 7%;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .product-detail-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .product-checkout-card {
    position: static;
  }

  .product-contents-section {
    padding: 60px 7%;
  }

  .product-detail-section {
    padding: 48px 7% 60px;
  }
}