/* ============================================
       CSS RESET & BASE STYLES
    ============================================ */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    :root {
      /* Colors */
      --color-primary: #0ea5e9;
      --color-primary-dark: #0284c7;
      --color-primary-light: #38bdf8;
      --color-secondary: #64748b;
      --color-secondary-light: #94a3b8;
      --color-text: #1e293b;
      --color-text-light: #475569;
      --color-text-lighter: #64748b;
      --color-bg: #ffffff;
      --color-bg-alt: #f8fafc;
      --color-bg-dark: #0f172a;
      --color-border: #e2e8f0;
      --color-success: #22c55e;
      --color-danger: #ef4444;

      /* Spacing */
      --spacing-xs: 0.25rem;
      --spacing-sm: 0.5rem;
      --spacing-md: 1rem;
      --spacing-lg: 1.5rem;
      --spacing-xl: 2rem;
      --spacing-2xl: 3rem;
      --spacing-3xl: 4rem;
      --spacing-4xl: 6rem;

      /* Typography */
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      --font-size-xs: 0.875rem;
      --font-size-sm: 1rem;
      --font-size-base: 1.125rem;
      --font-size-lg: 1.25rem;
      --font-size-xl: 1.5rem;
      --font-size-2xl: 2rem;
      --font-size-3xl: 2.5rem;
      --font-size-4xl: 3.5rem;

      /* Layout */
      --max-width: 1200px;
      --header-height: 70px;
      --border-radius: 8px;
      --border-radius-lg: 12px;
      --border-radius-full: 9999px;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      font-size: var(--font-size-base);
      line-height: 1.6;
      color: var(--color-text);
      background-color: var(--color-bg);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

    ul, ol {
      list-style: none;
    }

    /* ============================================
       UTILITY CLASSES
    ============================================ */
    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 var(--spacing-lg);
    }

    .text-center { text-align: center; }
    .text-left { text-align: left; }
    .font-bold { font-weight: 700; }
    .font-light { font-weight: 300; }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    /* ============================================
       BUTTONS
    ============================================ */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: var(--spacing-sm);
      padding: 0.75rem 1.75rem;
      font-size: var(--font-size-base);
      font-weight: 600;
      border-radius: var(--border-radius-full);
      border: 2px solid transparent;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .btn:focus-visible {
      outline: 3px solid var(--color-primary-light);
      outline-offset: 2px;
    }

    .btn-primary {
      background-color: var(--color-primary);
      color: white;
    }

    .btn-primary:hover {
      background-color: var(--color-primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
    }

    .btn-secondary {
      background-color: transparent;
      color: var(--color-text);
      border-color: var(--color-border);
    }

    .btn-secondary:hover {
      border-color: var(--color-text);
      background-color: var(--color-bg-alt);
    }

    .btn-large {
      padding: 1rem 2.5rem;
      font-size: var(--font-size-lg);
    }

    /* ============================================
       HEADER
    ============================================ */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      height: var(--header-height);
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--color-border);
      z-index: 1000;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: var(--spacing-sm);
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--color-primary);
      flex: 1;
    }

    .logo-icon {
      width: 36px;
      height: 36px;
      display: block;
    }

    .nav {
      display: none;
    }

    .nav-list {
      display: flex;
      align-items: center;
      gap: var(--spacing-xl);
    }

    .nav-link {
      font-size: var(--font-size-sm);
      font-weight: 500;
      color: var(--color-text-light);
      transition: color 0.2s;
    }

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

    .header-actions {
      display: flex;
      align-items: center;
      gap: var(--spacing-md);
      flex: 1;
      justify-content: flex-end;
    }

    .header-login {
      font-size: var(--font-size-sm);
      font-weight: 600;
      color: var(--color-text-light);
    }

    .header-login:hover {
      color: var(--color-text);
    }

    @media (min-width: 768px) {
      .nav { display: block; }
    }

    /* ============================================
       HERO SECTION
    ============================================ */
    .hero {
      padding-top: calc(var(--header-height) + var(--spacing-4xl));
      padding-bottom: var(--spacing-1xl);
      background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    }

    .hero-inner {
      display: grid;
      gap: var(--spacing-1xl);
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: var(--spacing-sm);
      padding: var(--spacing-sm) var(--spacing-lg);
      background-color: white;
      border: 1px solid var(--color-border);
      border-radius: var(--border-radius-full);
      font-size: var(--font-size-sm);
      color: var(--color-text-lighter);
      margin-bottom: var(--spacing-lg);
    }

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

    .hero-title {
      font-size: var(--font-size-3xl);
      font-weight: 700;
      line-height: 1.1;
      letter-spacing: -0.02em;
      margin-bottom: var(--spacing-lg);
    }

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

    .hero-description {
      font-size: var(--font-size-lg);
      color: var(--color-text-light);
      max-width: 600px;
      margin: 0 auto var(--spacing-xl);
      line-height: 1.7;
    }

    .hero-cta {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: var(--spacing-md);
    }

    .hero-trust {
      padding-top: 8px;
      font-size: var(--font-size-sm);
      color: var(--color-text-lighter);
    }

    .app-preview {
      margin-top: var(--spacing-4xl);
    }

    .app-preview img {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
    }

    @media (min-width: 768px) {
      .hero-title {
        font-size: var(--font-size-4xl);
      }

      .hero-cta {
        flex-direction: row;
        justify-content: center;
      }
    }

    /* ============================================
       LOGOS / SOCIAL PROOF
    ============================================ */
    .logos-section {
      padding: var(--spacing-3xl) 0;
      background: var(--color-bg);
      border-bottom: 1px solid var(--color-border);
    }

    .logos-section-text {
      text-align: center;
      font-size: var(--font-size-sm);
      color: var(--color-text-lighter);
      margin-bottom: var(--spacing-lg);
    }

    .logos-grid {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: var(--spacing-2xl);
      align-items: center;
      opacity: 0.7;
    }

    .logos-grid img {
      height: 35px;
      width: auto;
    }

    /* ============================================
       PAIN POINTS SECTION
    ============================================ */
    .pain-points {
      padding: var(--spacing-4xl) 0;
    }

    .section-header {
      text-align: center;
      max-width: 700px;
      margin: 0 auto var(--spacing-3xl);
    }

    .section-label {
      display: inline-block;
      font-size: var(--font-size-sm);
      font-weight: 600;
      color: var(--color-primary);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: var(--spacing-md);
    }

    .section-title {
      font-size: var(--font-size-3xl);
      font-weight: 700;
      line-height: 1.2;
      letter-spacing: -0.02em;
      margin-bottom: var(--spacing-md);
    }

    .section-description {
      font-size: var(--font-size-base);
      color: var(--color-text-light);
      line-height: 1.7;
    }

    .pain-points-grid {
      display: grid;
      gap: var(--spacing-xl);
      max-width: 900px;
      margin: 0 auto;
      grid-template-columns: 1fr;
    }

    .pain-point-card {
      padding: var(--spacing-2xl);
      background: white;
      border-radius: var(--border-radius-lg);
      border: 1px solid var(--color-border);
      border-left: 4px solid var(--color-danger);
      box-shadow: 0 1px 3px rgba(0,0,0,0.04);
      transition: all 0.2s ease;
    }

    .pain-point-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 16px rgba(0,0,0,0.08);
      border-left-color: #dc2626;
    }

    .pain-point-title {
      font-size: var(--font-size-xl);
      font-weight: 700;
      margin-bottom: var(--spacing-md);
      color: var(--color-text);
    }

    .pain-point-text {
      color: var(--color-text-light);
      line-height: 1.7;
      font-size: var(--font-size-base);
    }

    @media (min-width: 768px) {
      .pain-points-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    /* ============================================
       SOLUTION / FEATURES SECTION
    ============================================ */
    .features {
      padding: var(--spacing-4xl) 0;
      background: var(--color-bg-alt);
    }

    .features-grid {
      display: grid;
      gap: var(--spacing-xl);
    }

    .feature-card {
      padding: var(--spacing-xl);
      background: white;
      border-radius: var(--border-radius-lg);
      border: 1px solid var(--color-border);
      transition: all 0.3s ease;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.1);
      border-color: var(--color-primary);
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
      border-radius: var(--border-radius);
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 1.5rem;
      margin-bottom: var(--spacing-md);
    }

    .feature-title {
      font-size: var(--font-size-lg);
      font-weight: 600;
      margin-bottom: var(--spacing-sm);
    }

    .feature-text {
      color: var(--color-text-light);
      line-height: 1.6;
    }

    @media (min-width: 768px) {
      .features-grid {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    /* ============================================
       HOW IT WORKS
    ============================================ */
    .how-it-works {
      padding: var(--spacing-4xl) 0;
    }

    .steps {
      display: grid;
      gap: var(--spacing-2xl);
      counter-reset: step;
    }

    .step {
      display: grid;
      gap: var(--spacing-md);
      text-align: center;
    }

    .step-number {
      width: 48px;
      height: 48px;
      margin: 0 auto;
      background: var(--color-primary);
      color: white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: var(--font-size-xl);
      font-weight: 700;
    }

    .step-title {
      font-size: var(--font-size-xl);
      font-weight: 600;
    }

    .step-text {
      color: var(--color-text-light);
      max-width: 400px;
    }

    @media (min-width: 768px) {
      .steps {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    /* ============================================
       PRICING SECTION
    ============================================ */
    .pricing {
      padding: var(--spacing-4xl) 0;
      background: var(--color-bg-alt);
    }

    /* Toggle Styles */
    .pricing-toggle-input {
      display: none;
    }

    .pricing-toggle-wrapper {
      display: flex;
      justify-content: center;
      margin-bottom: var(--spacing-3xl);
    }

    .pricing-toggle {
      display: flex;
      align-items: center;
      gap: var(--spacing-md);
      background: var(--color-bg-alt);
      padding: var(--spacing-sm);
      border-radius: var(--border-radius-full);
      border: 2px solid var(--color-border);
      position: relative;
    }

    .pricing-toggle-label {
      padding: var(--spacing-sm) var(--spacing-lg);
      border-radius: var(--border-radius-full);
      font-size: var(--font-size-sm);
      font-weight: 600;
      cursor: pointer;
      transition: all 0.2s ease;
      color: var(--color-text-light);
      display: flex;
      align-items: center;
      gap: var(--spacing-sm);
      position: relative;
    }

    .pricing-toggle-label:hover {
      color: var(--color-text);
    }

    .pricing-badge-save {
      font-size: 0.7rem;
      background: var(--color-success);
      color: white;
      padding: 2px 6px;
      border-radius: 4px;
      font-weight: 700;
    }

    /* Toggle state: Monthly selected */
    #billing-monthly:checked ~ .pricing-toggle-wrapper .pricing-toggle label[for="billing-monthly"] {
      background: var(--color-primary);
      color: white;
    }

    #billing-monthly:checked ~ .pricing-toggle-wrapper .pricing-toggle label[for="billing-yearly"] {
      background: transparent;
      color: var(--color-text-light);
    }

    /* Toggle state: Yearly selected */
    #billing-yearly:checked ~ .pricing-toggle-wrapper .pricing-toggle label[for="billing-yearly"] {
      background: var(--color-primary);
      color: white;
    }

    #billing-yearly:checked ~ .pricing-toggle-wrapper .pricing-toggle label[for="billing-monthly"] {
      background: transparent;
      color: var(--color-text-light);
    }

    /* Pricing Cards visibility based on toggle */
    .pricing-yearly {
      display: none;
    }

    #billing-monthly:checked ~ .pricing-grid .pricing-monthly {
      display: block;
    }

    #billing-monthly:checked ~ .pricing-grid .pricing-yearly {
      display: none;
    }

    #billing-yearly:checked ~ .pricing-grid .pricing-monthly {
      display: none;
    }

    #billing-yearly:checked ~ .pricing-grid .pricing-yearly {
      display: block;
    }

    .pricing-grid {
      display: grid;
      gap: var(--spacing-xl);
      max-width: 900px;
      margin: 0 auto;
    }

    .pricing-card {
      background: white;
      border-radius: var(--border-radius-lg);
      padding: var(--spacing-xl);
      border: 2px solid var(--color-border);
      position: relative;
    }

    .pricing-card.featured {
      border-color: var(--color-primary);
      box-shadow: 0 20px 40px -12px rgba(14, 165, 233, 0.2);
    }

    .pricing-badge {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--color-primary);
      color: white;
      padding: var(--spacing-xs) var(--spacing-md);
      border-radius: var(--border-radius-full);
      font-size: var(--font-size-sm);
      font-weight: 600;
    }

    .pricing-tier {
      font-size: var(--font-size-sm);
      font-weight: 600;
      color: var(--color-text-lighter);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      margin-bottom: var(--spacing-sm);
    }

    .pricing-price {
      font-size: var(--font-size-3xl);
      font-weight: 700;
      margin-bottom: var(--spacing-sm);
      color: var(--color-primary);
    }

    .pricing-price-period {
      font-size: var(--font-size-base);
      color: var(--color-text-lighter);
      font-weight: 400;
    }

    .pricing-description {
      color: var(--color-text-light);
      margin-bottom: var(--spacing-lg);
      padding-bottom: var(--spacing-lg);
      border-bottom: 1px solid var(--color-border);
      line-height: 1.6;
    }

    .pricing-features {
      display: grid;
      gap: var(--spacing-sm);
      margin-bottom: var(--spacing-lg);
    }

    .pricing-feature {
      display: flex;
      align-items: center;
      gap: var(--spacing-sm);
      font-size: var(--font-size-sm);
    }

    .pricing-feature-check {
      width: 20px;
      height: 20px;
      background: var(--color-success);
      border-radius: 50%;
      flex-shrink: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-size: 0.75rem;
    }

    .pricing-cta {
      width: 100%;
    }

    @media (min-width: 768px) {
      .pricing-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    /* ============================================
       FAQ SECTION
    ============================================ */
    .faq {
      padding: var(--spacing-4xl) 0;
    }

    .faq-input {
      display: none;
    }

    .faq-list {
      display: grid;
      gap: var(--spacing-md);
      max-width: 700px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: var(--border-radius);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      padding: var(--spacing-lg);
      background: white;
      border: none;
      text-align: left;
      font-size: var(--font-size-base);
      font-weight: 600;
      font-family: inherit;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin: 0;
      transition: background 0.2s ease;
    }

    .faq-question:hover {
      background: var(--color-bg-alt);
    }

    .faq-icon {
      width: 24px;
      height: 24px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5rem;
      color: var(--color-primary);
      font-weight: 700;
    }

    .faq-icon::after {
      content: "+";
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 var(--spacing-lg);
      color: var(--color-text-light);
      line-height: 1.6;
      opacity: 0;
      transition: all 0.3s ease;
    }

    /* FAQ 1 */
    #faq-1:checked ~ .container .faq-list .faq-item:nth-child(1) .faq-answer {
      max-height: 500px;
      padding: 0 var(--spacing-lg) var(--spacing-lg);
      opacity: 1;
    }

    #faq-1:checked ~ .container .faq-list .faq-item:nth-child(1) .faq-question {
      background: var(--color-bg-alt);
    }

    #faq-1:checked ~ .container .faq-list .faq-item:nth-child(1) .faq-icon::after {
      content: "−";
    }

    /* FAQ 2 */
    #faq-2:checked ~ .container .faq-list .faq-item:nth-child(2) .faq-answer {
      max-height: 500px;
      padding: 0 var(--spacing-lg) var(--spacing-lg);
      opacity: 1;
    }

    #faq-2:checked ~ .container .faq-list .faq-item:nth-child(2) .faq-question {
      background: var(--color-bg-alt);
    }

    #faq-2:checked ~ .container .faq-list .faq-item:nth-child(2) .faq-icon::after {
      content: "−";
    }

    /* FAQ 3 */
    #faq-3:checked ~ .container .faq-list .faq-item:nth-child(3) .faq-answer {
      max-height: 500px;
      padding: 0 var(--spacing-lg) var(--spacing-lg);
      opacity: 1;
    }

    #faq-3:checked ~ .container .faq-list .faq-item:nth-child(3) .faq-question {
      background: var(--color-bg-alt);
    }

    #faq-3:checked ~ .container .faq-list .faq-item:nth-child(3) .faq-icon::after {
      content: "−";
    }

    /* FAQ 4 */
    #faq-4:checked ~ .container .faq-list .faq-item:nth-child(4) .faq-answer {
      max-height: 500px;
      padding: 0 var(--spacing-lg) var(--spacing-lg);
      opacity: 1;
    }

    #faq-4:checked ~ .container .faq-list .faq-item:nth-child(4) .faq-question {
      background: var(--color-bg-alt);
    }

    #faq-4:checked ~ .container .faq-list .faq-item:nth-child(4) .faq-icon::after {
      content: "−";
    }

    /* FAQ 5 */
    #faq-5:checked ~ .container .faq-list .faq-item:nth-child(5) .faq-answer {
      max-height: 500px;
      padding: 0 var(--spacing-lg) var(--spacing-lg);
      opacity: 1;
    }

    #faq-5:checked ~ .container .faq-list .faq-item:nth-child(5) .faq-question {
      background: var(--color-bg-alt);
    }

    #faq-5:checked ~ .container .faq-list .faq-item:nth-child(5) .faq-icon::after {
      content: "−";
    }

    /* FAQ 6 */
    #faq-6:checked ~ .container .faq-list .faq-item:nth-child(6) .faq-answer {
      max-height: 500px;
      padding: 0 var(--spacing-lg) var(--spacing-lg);
      opacity: 1;
    }

    #faq-6:checked ~ .container .faq-list .faq-item:nth-child(6) .faq-question {
      background: var(--color-bg-alt);
    }

    #faq-6:checked ~ .container .faq-list .faq-item:nth-child(6) .faq-icon::after {
      content: "−";
    }

    /* ============================================
       FINAL CTA SECTION
    ============================================ */
    .final-cta {
      padding: var(--spacing-4xl) 0;
      background: linear-gradient(135deg, var(--color-bg-dark) 0%, #1e293b 100%);
      color: white;
      text-align: center;
    }

    .final-cta-title {
      font-size: var(--font-size-3xl);
      font-weight: 700;
      margin-bottom: var(--spacing-xl);
    }

    .final-cta-text {
      font-size: var(--font-size-lg);
      color: rgba(255, 255, 255, 0.8);
      margin-bottom: var(--spacing-xl);
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    /* ============================================
       FOOTER
    ============================================ */
    .footer {
      padding: var(--spacing-3xl) 0 var(--spacing-lg);
      background: var(--color-bg-dark);
      color: rgba(255, 255, 255, 0.7);
      font-size: var(--font-size-sm);
    }

    .footer-grid {
      display: grid;
      gap: var(--spacing-xl);
      margin-bottom: var(--spacing-2xl);
    }

    .footer-brand {
      color: white;
    }

    .footer-brand-name {
      font-size: var(--font-size-xl);
      font-weight: 700;
      margin-bottom: var(--spacing-sm);
    }

    .footer-heading {
      color: white;
      font-weight: 600;
      margin-bottom: var(--spacing-md);
    }

    .footer-links {
      display: grid;
      gap: var(--spacing-sm);
    }

    .footer-link {
      transition: color 0.2s;
    }

    .footer-link:hover {
      color: white;
    }

    @media (min-width: 768px) {
      .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
      }
    }

    /* ============================================
       RESPONSIVE TYPOGRAPHY
    ============================================ */
    @media (min-width: 768px) {
      :root {
        --font-size-3xl: 3rem;
        --font-size-4xl: 4.5rem;
      }
    }

    /* ============================================
       HERO FADE IN ANIMATION
    ============================================ */
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .hero-badge { opacity: 0; animation: fadeIn 0.8s ease-out 0.1s forwards; }
    .hero-title { opacity: 0; animation: fadeIn 0.8s ease-out 0.2s forwards; }
    .hero-description { opacity: 0; animation: fadeIn 0.8s ease-out 0.3s forwards; }
    .hero-cta { opacity: 0; animation: fadeIn 0.8s ease-out 0.4s forwards; }
    .hero-trust { opacity: 0; animation: fadeIn 0.8s ease-out 0.5s forwards; }
    .app-preview { opacity: 0; animation: fadeIn 1s ease-out 0.6s forwards; }