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

:root {
  --color-bg: #0a0f1a;
  --color-surface: #111827;
  --color-surface-2: #1a2236;
  --color-border: #2a3548;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-accent: #10b981;
  --color-accent-light: #34d399;
  --color-accent-dark: #059669;
  --color-gold: #d4a853;
  --color-gold-light: #e8c97a;
  --font-body: 'DM Sans', sans-serif;
  --font-display: 'Playfair Display', serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

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

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--color-accent-light); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* ===== Research Banner ===== */
.research-banner {
  background: #7f1d1d;
  color: #fecaca;
  text-align: center;
  padding: 8px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  position: sticky;
  top: 0;
  z-index: 1001;
}

/* ===== Header ===== */
.header {
  background: rgba(10, 15, 26, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 33px;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo span { color: var(--color-accent-light); }
.logo:hover { text-decoration: none; }

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition);
}

.nav a:hover { color: var(--color-text); }

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav.open { display: flex; }

.mobile-nav a {
  color: var(--color-text-muted);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: #fff;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

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

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

.btn-sm { padding: 10px 20px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* ===== Hero ===== */
.hero {
  padding: 80px 0 100px;
  background: radial-gradient(ellipse at 70% 50%, rgba(16, 185, 129, 0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 80%, rgba(212, 168, 83, 0.06) 0%, transparent 50%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.badge {
  display: inline-block;
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-accent-light);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 20px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

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

.hero-sub {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-trust {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.trust-item svg { color: var(--color-accent); flex-shrink: 0; }

.product-showcase {
  display: grid;
  grid-template-columns: minmax(220px, 0.92fr) minmax(250px, 1fr);
  align-items: center;
  gap: 0;
  position: relative;
}

.product-image-wrap {
  border: 1px solid rgba(52, 211, 153, 0.22);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(16, 185, 129, 0.12), rgba(17, 24, 39, 0.92));
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
  z-index: 2;
}

.product-image {
  width: 100%;
  aspect-ratio: 1 / 1.08;
  object-fit: cover;
  object-position: center;
}

.product-image-badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(10, 15, 26, 0.82);
  border: 1px solid rgba(52, 211, 153, 0.28);
  border-radius: 100px;
  color: var(--color-accent-light);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 6px 12px;
  backdrop-filter: blur(10px);
}

.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 34px 34px 34px 48px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  margin-left: -20px;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-gold));
}

.product-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  margin-bottom: 12px;
}

.product-card h2 {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.product-code {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-family: monospace;
  margin-bottom: 16px;
}

.product-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.product-tag {
  display: inline-block;
  background: rgba(212, 168, 83, 0.12);
  color: var(--color-gold-light);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid rgba(212, 168, 83, 0.25);
}

/* ===== Sections ===== */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ===== Overview Section ===== */
.overview-section {
  padding: 80px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}

.overview-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
}

.overview-stat {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-accent-light);
  line-height: 1;
  margin-bottom: 8px;
}

.overview-label {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.overview-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.overview-disclaimer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 32px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Benefits ===== */
.benefits {
  padding: 80px 0;
}

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

.benefit-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
}

.benefit-card:hover {
  border-color: rgba(16, 185, 129, 0.4);
  transform: translateY(-2px);
}

.benefit-icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
}

.benefit-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.benefit-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ===== How It Works ===== */
.how-it-works {
  padding: 80px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 180px;
  max-width: 220px;
  text-align: center;
}

.step-num {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 auto 16px;
}

.step h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.step-arrow {
  color: var(--color-border);
  font-size: 1.5rem;
  padding-top: 12px;
  flex-shrink: 0;
}

/* ===== Pricing ===== */
.pricing {
  padding: 80px 0;
  overflow: visible;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
  width: 100%;
  padding-top: 16px;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  display: flex;
  flex-direction: column;
  opacity: 1;
  visibility: visible;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.pricing-card:hover {
  box-shadow: var(--shadow);
  border-color: rgba(16, 185, 129, 0.3);
}

.pricing-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px var(--color-accent), var(--shadow-lg);
}

.pricing-card .buy-btn,
.pricing-card .btn-block {
  margin-top: auto;
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: #fff;
  padding: 4px 16px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.pricing-header h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.pricing-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.pricing-price {
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.pricing-price .currency {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-accent-light);
}

.pricing-price .amount {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-text);
}

.pricing-price .period {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-left: 4px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
}

.pricing-features li {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
  border-bottom: 1px solid rgba(42, 53, 72, 0.5);
}

.pricing-features li:last-child { border-bottom: none; }

.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.pricing-note {
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 32px;
}

/* ===== Testimonials ===== */
.testimonials {
  padding: 80px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.testimonial-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}

.stars {
  color: var(--color-gold);
  font-size: 1rem;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.testimonial-card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}

.testimonial-author {
  font-size: 0.82rem;
  color: var(--color-text);
  font-weight: 600;
}

/* ===== FAQ ===== */
.faq {
  padding: 80px 0;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--color-surface);
}

.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item[open] summary::after { content: '−'; }

.faq-item summary:hover { background: var(--color-surface-2); }

.faq-item p {
  padding: 0 24px 18px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===== Disclaimer ===== */
.disclaimer-section {
  padding: 60px 0;
}

.disclaimer-box {
  background: rgba(127, 29, 29, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius);
  padding: 32px;
}

.disclaimer-box h3 {
  color: #fca5a5;
  font-size: 1rem;
  margin-bottom: 12px;
}

.disclaimer-box p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 10px;
  line-height: 1.7;
}

.disclaimer-box p:last-child { margin-bottom: 0; }

/* ===== Footer ===== */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 48px 0 32px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 8px;
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-link {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.85rem;
  cursor: pointer;
  text-decoration: none;
  transition: color var(--transition);
}

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

.inline-link {
  display: inline;
  padding: 0;
  font-size: inherit;
  color: var(--color-accent-light);
  text-decoration: underline;
}

.footer-copy p {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ===== Modals ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s;
  box-shadow: var(--shadow-lg);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-lg {
  max-width: 680px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.6rem;
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.modal-close:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.modal h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin-bottom: 8px;
  padding-right: 32px;
}

.modal-sub {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.modal-step.hidden { display: none; }

/* ===== Forms ===== */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--color-text-muted);
}

.form-group input {
  width: 100%;
  padding: 12px 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.form-group input::placeholder { color: #4b5563; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-section-title {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent-light);
  margin: 20px 0 12px;
  padding-top: 4px;
  border-top: 1px solid var(--color-border);
}

.form-section-title:first-of-type {
  margin-top: 0;
  border-top: none;
  padding-top: 0;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  cursor: pointer;
  line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
  accent-color: var(--color-accent);
  width: 16px;
  height: 16px;
}

.step-indicator {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
}

.step-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  transition: background var(--transition);
}

.step-dot.active { background: var(--color-accent); }

/* ===== Thank You ===== */
.thank-you {
  text-align: center;
  padding: 20px 0;
}

.thank-you-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 auto 20px;
}

.thank-you h2 {
  text-align: center;
  padding-right: 0;
}

.thank-you p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.thank-you-note {
  font-size: 0.85rem !important;
}

.checkout-secure-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 8px;
  padding: 14px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  line-height: 1.5;
}

.checkout-secure-note svg {
  flex-shrink: 0;
  color: var(--color-accent);
  margin-top: 2px;
}

.square-fallback {
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 16px;
  line-height: 1.5;
}

/* ===== Legal Content ===== */
.legal-content {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.legal-content h3 {
  color: var(--color-text);
  font-size: 0.95rem;
  margin: 20px 0 8px;
}

.legal-content p { margin-bottom: 10px; }

.legal-content ul {
  margin: 8px 0 12px 20px;
}

.legal-content li { margin-bottom: 4px; }

.legal-content a { color: var(--color-accent-light); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .product-showcase {
    grid-template-columns: minmax(210px, 320px) minmax(280px, 420px);
    justify-content: center;
  }
  .benefits-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .overview-grid { grid-template-columns: 1fr; max-width: 400px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .step-arrow { display: none; }
  .steps { gap: 24px; }
}

@media (max-width: 640px) {
  .nav { display: none; }
  .mobile-menu-btn { display: flex; }
  .benefits-grid { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 64px; }
  .hero-visual { order: 0; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .product-showcase {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }
  .product-image-wrap {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  }
  .product-image {
    aspect-ratio: 1.2 / 1;
    object-position: center 38%;
  }
  .product-image-badge {
    left: 16px;
    bottom: 16px;
  }
  .product-card {
    margin-left: 0;
    margin-top: -1px;
    padding: 28px;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  }
  .form-row { grid-template-columns: 1fr; }
  .modal { padding: 24px; }
  .footer-links { flex-direction: column; gap: 12px; }
}