:root {
  --bg-deep: #F9F6F2;
  --bg-surface: #F3EDE5;
  --bg-elevated: #ECE7E0;
  --fg: #2C2C2C;
  --fg-muted: #7A736B;
  --fg-dim: #A8A29A;
  --accent: #8B9E6A;
  --accent-light: #A8B87E;
  --accent-dim: rgba(139, 158, 106, 0.12);
  --accent-border: rgba(139, 158, 106, 0.25);
  --border: #DDD6CC;
  --border-light: rgba(221, 214, 204, 0.5);
  --stone-dark: #1A1816;
  --stone-mid: #2E2924;
  --radius: 14px;
  --font-display: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-deep);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.75;
  overflow-x: hidden;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 2rem;
  position: relative;
  background:
    radial-gradient(ellipse 70% 50% at 50% 30%, rgba(232, 231, 228, 0.8) 0%, transparent 70%),
    var(--bg-deep);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='400' height='400' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 200px;
  background: radial-gradient(ellipse 100% 80% at 50% 100%, rgba(139, 158, 106, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-border);
  padding: 0.35rem 1.2rem;
  border-radius: 50px;
  margin-bottom: 2.5rem;
  background: rgba(139, 158, 106, 0.06);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 1.5rem;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero .lede {
  font-size: clamp(1.05rem, 2.5vw, 1.2rem);
  color: var(--fg-muted);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.85;
}

/* === PROBLEM === */
.problem {
  padding: 7rem 2rem;
  background: var(--bg-surface);
  position: relative;
}

.problem::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.problem-inner {
  max-width: 900px;
  margin: 0 auto;
}

.problem-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.problem h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.75rem;
  color: var(--fg);
}

.problem-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-top: 3rem;
}

.stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.55;
}

/* === STONE === */
.stone {
  padding: 7rem 2rem;
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}

.stone::after {
  content: '';
  position: absolute;
  top: 50%; right: -8%;
  width: 350px;
  height: 350px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 158, 106, 0.07) 0%, transparent 70%);
  transform: translateY(-50%);
  pointer-events: none;
}

.stone-inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.stone-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.stone h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.stone-text {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 640px;
  margin-bottom: 3rem;
  line-height: 1.85;
}

.stone-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
}

.stone-fact {
  background: var(--bg-surface);
  padding: 2rem;
}

.stone-fact-title {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.stone-fact p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* === BENEFITS === */
.benefits {
  padding: 7rem 2rem;
  background: var(--bg-surface);
}

.benefits-inner {
  max-width: 900px;
  margin: 0 auto;
}

.benefits-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.benefits h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 3rem;
  color: var(--fg);
}

.benefit-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.benefit-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  align-items: start;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border-light);
}

.benefit-item:first-child {
  border-top: 1px solid var(--border-light);
}

.benefit-num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent-dim);
  line-height: 1;
  color: rgba(139, 158, 106, 0.2);
}

.benefit-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--fg);
}

.benefit-content p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.75;
}

/* === CLOSING === */
.closing {
  padding: 8rem 2rem;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 40% at 50% 70%, rgba(139, 158, 106, 0.08) 0%, transparent 70%),
    var(--bg-deep);
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--fg);
}

.closing h2 em {
  font-style: normal;
  color: var(--accent);
}

.closing p {
  font-size: 1.1rem;
  color: var(--fg-muted);
  line-height: 1.85;
  max-width: 520px;
  margin: 0 auto;
}

/* === FOOTER === */
.footer {
  padding: 3rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border-light);
  background: var(--bg-surface);
}

.footer p {
  font-size: 0.8rem;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
}

.footer .brand {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--fg-muted);
}

/* === PRODUCT === */
.product {
  padding: 7rem 2rem;
  background: var(--bg-surface);
  position: relative;
}

.product::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.product-inner {
  max-width: 960px;
  margin: 0 auto;
}

.product-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.product h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 3rem;
  color: var(--fg);
}

.product-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 4px 40px rgba(44, 44, 44, 0.06), 0 1px 4px rgba(44, 44, 44, 0.04);
}

.product-badge {
  background: var(--accent-dim);
  border-bottom: 1px solid var(--accent-border);
  padding: 0.6rem 2rem;
  font-size: 0.72rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  text-align: center;
}

.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

.product-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  background: linear-gradient(160deg, #F9F6F2 0%, #F3EDE5 100%);
  border-right: 1px solid var(--border-light);
  gap: 1.5rem;
}

.product-image-wrap {
  width: 260px;
  height: 260px;
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
}

.product-image-wrap img,
.product-image-wrap svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Real product photo — warm shadow for depth against cream background */
.product-photo--hero {
  border-radius: 14px;
  box-shadow: 0 4px 24px rgba(44, 44, 44, 0.10), 0 1px 4px rgba(44, 44, 44, 0.06);
}

/* Thumbnail strip for wrist + detail shots */
.product-thumbnails {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}

.product-thumb-wrap {
  width: 80px;
  height: 80px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.product-thumb-wrap:hover,
.product-thumb--active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-border);
}

.product-photo--thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-properties {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.product-properties span {
  font-family: var(--font-display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
  background: #fff;
}

.product-info {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.product-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--fg);
  line-height: 1.25;
}

.product-desc {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.75;
}

.product-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.product-features li {
  font-size: 0.88rem;
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.product-features .check {
  color: var(--accent);
  font-size: 0.65rem;
  flex-shrink: 0;
}

.product-price-block {
  margin-top: 0.25rem;
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.4rem;
}

.price-current {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--fg);
  line-height: 1;
}

.price-old {
  font-size: 1.05rem;
  color: var(--fg-dim);
  text-decoration: line-through;
}

.price-save {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.2rem 0.65rem;
  border-radius: 50px;
  border: 1px solid var(--accent-border);
}

.price-note {
  font-size: 0.8rem;
  color: var(--fg-dim);
}

.buy-btn {
  display: block;
  width: 100%;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  background: var(--accent);
  padding: 1rem 2rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 2px 16px rgba(139, 158, 106, 0.35);
}

.buy-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(139, 158, 106, 0.45);
  background: var(--accent-light);
}

.buy-btn:active {
  transform: translateY(0);
}

.guarantee {
  font-size: 0.8rem;
  color: var(--fg-dim);
  text-align: center;
}

@media (max-width: 720px) {
  .product-layout {
    grid-template-columns: 1fr;
  }
  .product-visual {
    border-right: none;
    border-bottom: 1px solid var(--border-light);
    padding: 2.5rem;
  }
}

/* === RESPONSIVE === */
@media (max-width: 640px) {
  .stone-facts {
    grid-template-columns: 1fr;
  }

  .benefit-item {
    grid-template-columns: 50px 1fr;
    gap: 1rem;
  }

  .benefit-num {
    font-size: 2rem;
  }

  .problem-stats {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 90vh;
    padding: 3rem 1.5rem;
  }

  .problem, .stone, .benefits, .closing, .product {
    padding: 4.5rem 1.5rem;
  }
}