:root {
    --ww-bg: #050816;
    --ww-bg-alt: #090f22;
    --ww-card: #101933;
    --ww-border-subtle: rgba(255, 255, 255, 0.06);
    --ww-accent: #4fd1c5;
    --ww-accent-soft: rgba(79, 209, 197, 0.15);
    --ww-highlight: #f6ad55;
    --ww-text: #f9fafb;
    --ww-text-muted: #a0aec0;
    --ww-radius-lg: 18px;
    --ww-radius-xl: 26px;
    --ww-shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.45);
    --ww-max-width: 1120px;
    --ww-transition: 200ms ease-out;
  }
  
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  
  html,
  body {
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
      "Segoe UI", sans-serif;
    background: radial-gradient(circle at 0 0, #1a365d 0, #050816 45%)
      fixed;
    color: var(--ww-text);
  }
  
  body {
    line-height: 1.6;
  }
  
  /* Layout helpers */
  
  .ww-container {
    width: 100%;
    max-width: var(--ww-max-width);
    margin: 0 auto;
    padding: 0 1.2rem;
  }
  
  .ww-section {
    padding: 4.5rem 0;
  }
  
  .ww-section h2 {
    font-size: clamp(1.9rem, 2.4vw, 2.3rem);
    margin-bottom: 0.5rem;
  }
  
  .ww-section-intro {
    max-width: 640px;
    color: var(--ww-text-muted);
  }
  
  /* Header / Nav */
  
  .ww-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(14px);
    background: linear-gradient(
      to bottom,
      rgba(5, 8, 22, 0.96),
      rgba(5, 8, 22, 0.9),
      rgba(5, 8, 22, 0.75)
    );
    border-bottom: 1px solid var(--ww-border-subtle);
  }
  
  .ww-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
  }
  
  .ww-logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.03em;
  }
  
  .ww-logo span {
    color: var(--ww-accent);
  }
  
  .ww-logo-sm {
    font-weight: 600;
    margin-bottom: 0.25rem;
  }
  
  .ww-nav {
    position: relative;
  }
  
  .ww-nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.25rem;
    font-size: 0.95rem;
  }
  
  .ww-nav-links a {
    text-decoration: none;
    color: var(--ww-text-muted);
    position: relative;
    padding-bottom: 3px;
    transition: color var(--ww-transition);
  }
  
  .ww-nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--ww-accent), var(--ww-highlight));
    border-radius: 999px;
    transition: width var(--ww-transition);
  }
  
  .ww-nav-links a:hover {
    color: var(--ww-text);
  }
  
  .ww-nav-links a:hover::after {
    width: 100%;
  }
  
  .ww-nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--ww-border-subtle);
    color: var(--ww-text);
    border-radius: 999px;
    padding: 0.35rem 0.6rem;
    font-size: 1.1rem;
  }
  
  /* Hero */
  
  .ww-hero {
    padding: 5rem 0 4rem;
  }
  
  .ww-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: center;
  }
  
  .ww-hero-text h1 {
    font-size: clamp(2.2rem, 3vw, 2.8rem);
    line-height: 1.2;
    margin-bottom: 1rem;
  }
  
  .ww-hero-text p {
    color: var(--ww-text-muted);
    max-width: 580px;
  }
  
  .ww-hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 1.75rem 0 0.75rem;
  }
  
  .ww-hero-subnote {
    font-size: 0.9rem;
    color: var(--ww-text-muted);
  }
  
  /* Buttons */
  
  .ww-btn {
    border-radius: 999px;
    padding: 0.6rem 1.35rem;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    text-decoration: none;
    transition: transform var(--ww-transition), box-shadow var(--ww-transition),
      background var(--ww-transition), color var(--ww-transition),
      border-color var(--ww-transition), opacity var(--ww-transition);
    white-space: nowrap;
  }
  
  .ww-btn-primary {
    background: linear-gradient(135deg, var(--ww-accent), var(--ww-highlight));
    color: #050816;
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.45);
  }
  
  .ww-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.6);
  }
  
  .ww-btn-ghost {
    background: rgba(255, 255, 255, 0.04);
    color: var(--ww-text);
    border: 1px solid var(--ww-border-subtle);
  }
  
  .ww-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.07);
  }
  
  .ww-btn-outline {
    background: transparent;
    color: var(--ww-text);
    border: 1px solid var(--ww-border-subtle);
  }
  
  .ww-btn-outline:hover {
    border-color: var(--ww-accent);
  }
  
  .ww-btn[disabled] {
    opacity: 0.6;
    cursor: default;
  }
  
  /* Hero phone card */
  
  .ww-hero-card {
    display: flex;
    justify-content: flex-end;
  }
  
  .ww-hero-phone {
    background: radial-gradient(circle at 0 0, #2c5282 0, #101933 50%, #050816 100%);
    border-radius: 32px;
    padding: 1rem;
    border: 1px solid var(--ww-border-subtle);
    box-shadow: var(--ww-shadow-soft);
    width: 100%;
    max-width: 320px;
  }
  
  .ww-hero-phone-header {
    display: flex;
    gap: 0.3rem;
    align-items: center;
    margin-bottom: 0.75rem;
  }
  
  .ww-hero-phone-header .dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.2);
  }
  
  .ww-hero-phone-body {
    background: rgba(5, 8, 22, 0.85);
    border-radius: 22px;
    padding: 1rem 1.1rem;
    border: 1px solid var(--ww-border-subtle);
  }
  
  .ww-pill {
    display: inline-flex;
    padding: 0.16rem 0.75rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    font-size: 0.75rem;
    color: var(--ww-text-muted);
    margin-bottom: 0.6rem;
    background: rgba(15, 23, 42, 0.9);
  }
  
  .ww-hero-phone-body h2 {
    font-size: 1.1rem;
    margin: 0 0 0.45rem;
  }
  
  .ww-hero-list {
    list-style: none;
    padding: 0;
    margin: 0 0 0.75rem;
    font-size: 0.85rem;
    color: var(--ww-text-muted);
  }
  
  .ww-hero-list li + li {
    margin-top: 0.25rem;
  }
  
  .ww-hero-phone-footer {
    font-size: 0.8rem;
    color: var(--ww-accent);
  }
  
  /* Alternating background */
  
  .ww-alt {
    background: radial-gradient(circle at 100% 0, #1a365d 0, #090f22 45%);
  }
  
  /* Two-column layout (About) */
  
  .ww-two-col {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 2rem;
  }
  
  .ww-bullets {
    list-style: none;
    padding: 0;
    margin: 0;
    color: var(--ww-text-muted);
  }
  
  .ww-bullets li {
    margin-bottom: 0.5rem;
  }
  
  .ww-bullets strong {
    color: var(--ww-text);
  }
  
  /* Features */
  
  .ww-feature-grid {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.5rem;
  }
  
  .ww-feature-card {
    background: radial-gradient(circle at 0 0, #1a365d 0, #0b1120 55%);
    border-radius: var(--ww-radius-lg);
    padding: 1.3rem 1.35rem;
    border: 1px solid var(--ww-border-subtle);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.32);
  }
  
  .ww-feature-card h3 {
    font-size: 1.05rem;
    margin-top: 0;
  }
  
  .ww-feature-card p {
    font-size: 0.9rem;
    color: var(--ww-text-muted);
  }
  
  /* Pricing */
  
  .ww-pricing-grid {
    margin-top: 2.25rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
  }
  
  .ww-price-card {
    position: relative;
    background: radial-gradient(circle at 0 0, #1a365d 0, #050816 55%);
    border-radius: var(--ww-radius-xl);
    padding: 1.7rem 1.5rem 1.4rem;
    border: 1px solid var(--ww-border-subtle);
    box-shadow: var(--ww-shadow-soft);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
  }
  
  .ww-price-card h3 {
    margin: 0;
  }
  
  .ww-price {
    font-size: 1.6rem;
    font-weight: 600;
  }
  
  .ww-price span {
    font-size: 0.85rem;
    color: var(--ww-text-muted);
    margin-left: 0.25rem;
  }
  
  .ww-price-card ul {
    list-style: none;
    padding: 0;
    margin: 0.3rem 0 1rem;
    font-size: 0.9rem;
    color: var(--ww-text-muted);
  }
  
  .ww-price-card ul li + li {
    margin-top: 0.25rem;
  }
  
  .ww-price-card-featured {
    border-color: var(--ww-accent-soft);
    background:
      radial-gradient(circle at 0 0, rgba(79, 209, 197, 0.18) 0, #050816 50%),
      radial-gradient(circle at 110% 0, rgba(246, 173, 85, 0.25) 0, #050816 55%);
  }
  
  .ww-tag {
    position: absolute;
    top: 0.85rem;
    right: 1.1rem;
    background: rgba(15, 23, 42, 0.9);
    border-radius: 999px;
    padding: 0.2rem 0.7rem;
    font-size: 0.7rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  .ww-pricing-note {
    margin-top: 1.4rem;
    font-size: 0.9rem;
    color: var(--ww-text-muted);
  }
  
  /* Download / App section */
  
  .ww-download {
    display: flex;
    justify-content: center;
  }
  
  .ww-download > div {
    max-width: 640px;
  }
  
  /* Legal section */
  
  .ww-legal-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 2rem;
  }
  
  .ww-legal-card {
    background: rgba(5, 8, 22, 0.9);
    border-radius: var(--ww-radius-lg);
    padding: 1.6rem 1.4rem;
    border: 1px solid var(--ww-border-subtle);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
    max-height: 600px;
    overflow-y: auto;
  }
  
  .ww-legal-card h2 {
    margin-top: 0;
  }
  
  .ww-legal-card h3 {
    font-size: 0.98rem;
    margin-bottom: 0.25rem;
  }
  
  .ww-legal-card p,
  .ww-legal-card ul {
    font-size: 0.9rem;
    color: var(--ww-text-muted);
  }
  
  .ww-legal-card ul {
    padding-left: 1.1rem;
  }
  
  .ww-legal-card li + li {
    margin-top: 0.25rem;
  }
  
  .ww-legal-updated {
    font-size: 0.78rem;
    color: var(--ww-text-muted);
    margin-top: 0;
  }
  
  /* Footer */
  
  .ww-footer {
    border-top: 1px solid var(--ww-border-subtle);
    padding: 1.8rem 0 2.2rem;
    background: rgba(5, 8, 22, 0.98);
  }
  
  .ww-footer-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) auto minmax(0, 1.2fr);
    gap: 1.8rem;
    align-items: center;
  }
  
  .ww-footer-text {
    font-size: 0.85rem;
    color: var(--ww-text-muted);
    max-width: 260px;
  }
  
  .ww-footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.85rem;
  }
  
  .ww-footer-links a {
    text-decoration: none;
    color: var(--ww-text-muted);
  }
  
  .ww-footer-links a:hover {
    color: var(--ww-text);
  }
  
  .ww-footer-meta {
    font-size: 0.8rem;
    color: var(--ww-text-muted);
    text-align: right;
  }
  
  /* Responsive */
  
  @media (max-width: 900px) {
    .ww-hero-grid,
    .ww-two-col,
    .ww-legal-grid,
    .ww-footer-inner {
      grid-template-columns: minmax(0, 1fr);
    }
  
    .ww-hero-card {
      justify-content: flex-start;
    }
  
    .ww-footer-meta {
      text-align: left;
    }
  
    .ww-footer-inner {
      align-items: flex-start;
    }
  }
  
  @media (max-width: 720px) {
    .ww-header-inner {
      min-height: 56px;
    }
  
    .ww-nav-toggle {
      display: inline-flex;
    }
  
    .ww-nav-links {
      position: absolute;
      right: 0;
      top: 130%;
      flex-direction: column;
      background: rgba(5, 8, 22, 0.98);
      border-radius: 16px;
      padding: 0.6rem 0.8rem;
      border: 1px solid var(--ww-border-subtle);
      box-shadow: 0 18px 36px rgba(0, 0, 0, 0.6);
      transform-origin: top right;
      transform: scale(0.95);
      opacity: 0;
      pointer-events: none;
    }
  
    .ww-nav-links.ww-open {
      opacity: 1;
      pointer-events: auto;
      transform: scale(1);
    }
  
    .ww-hero {
      padding-top: 4rem;
    }
  
    .ww-section {
      padding: 3.5rem 0;
    }
  
    .ww-legal-card {
      max-height: none;
    }
  }