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

:root {
  --color-bg: #fafaf9;
  --color-surface: #ffffff;
  --color-text: #1c1917;
  --color-text-muted: #57534e;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-accent: #f59e0b;
  --color-border: #e7e5e4;
  --color-section-alt: #f5f5f4;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --max-width: 960px;
  --radius: 12px;
  --radius-sm: 8px;
}

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

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* === Layout === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--color-section-alt);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 24px;
}

/* === Nav === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 249, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  text-decoration: none;
}

.logo-icon {
  font-size: 1.4rem;
}

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

.nav-links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--color-text);
  text-decoration: none;
}

.lang-toggle {
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.2s;
}

.lang-toggle:hover {
  background: var(--color-primary-hover);
}

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

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 14px 28px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s;
  border: none;
  cursor: pointer;
  font-family: var(--font);
}

.btn:hover {
  background: var(--color-primary-hover);
  text-decoration: none;
  transform: translateY(-1px);
}

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

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

/* === Hero === */
.hero {
  padding: 140px 0 80px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

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

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

/* === Product Card === */
.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.product-icon {
  font-size: 3rem;
  flex-shrink: 0;
}

.product-content h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.product-tagline {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: 16px;
}

.product-content > p {
  color: var(--color-text-muted);
  margin-bottom: 20px;
  line-height: 1.7;
}

.feature-list {
  list-style: none;
  margin-bottom: 24px;
}

.feature-list li {
  padding: 6px 0;
  font-size: 0.95rem;
}

.product-pricing {
  margin-top: 8px;
}

.price-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  background: var(--color-section-alt);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.price-badge strong {
  font-size: 1.4rem;
  color: var(--color-text);
}

.price-badge strong span {
  font-size: 0.9rem;
  font-weight: 500;
}

/* === Coming Soon === */
.coming-soon-card {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.coming-soon-card h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 16px 0 12px;
}

.coming-soon-card p {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
}

.notify-cta {
  margin-top: 8px;
}

/* === Footer === */
.footer {
  background: var(--color-text);
  color: #d6d3d1;
  padding: 60px 0 24px;
}

.footer a {
  color: #d6d3d1;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer h4 {
  color: #fff;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.footer-contact p,
.footer-legal p {
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 4px;
}

.footer-bottom {
  border-top: 1px solid #44403c;
  padding-top: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: #78716c;
}

/* === Mobile === */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(250, 250, 249, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 16px 20px;
    gap: 12px;
    border-bottom: 1px solid var(--color-border);
  }

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

  .nav-toggle {
    display: flex;
  }

  .nav-logo span {
    font-size: 0.95rem;
  }

  .hero {
    padding: 110px 0 60px;
  }

  .product-card {
    flex-direction: column;
    padding: 24px;
    gap: 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section {
    padding: 56px 0;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-sub {
    font-size: 0.95rem;
  }

  .product-content h2 {
    font-size: 1.4rem;
  }
}