/* CSS Variables */
      :root {
        --primary: #1a3c8f;
        --secondary: #3a9fe0;
        --surface: #0d1f4e;
        --card-bg: #162654;
        --card-bg-alt: #1a2d5a;
        --gradient: linear-gradient(135deg, #1a3c8f 0%, #3a9fe0 100%);
        --text-pri: #ffffff;
        --text-sec: #a8bfdf;
        --success: #2ecc71;
        --border: #243a6b;
        --gold: #f0c040;
        --ios-silver: #c0c0c0;

        --font-display: "Poppins", sans-serif;
        --font-body: "Nunito", sans-serif;
      }

      /* Resets */
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }
      body {
        font-family: var(--font-body);
        background-color: var(--surface);
        color: var(--text-pri);
        line-height: 1.6;
        overflow-x: hidden;
      }
      a {
        text-decoration: none;
        color: inherit;
      }
      img {
        max-width: 100%;
        height: auto;
        display: block;
      }
      ul {
        list-style: none;
      }

      /* Typography */
      h1,
      h2,
      h3,
      .poppins {
        font-family: var(--font-display);
      }
      /* Optimized H1 for better readability */
      h1 {
        font-weight: 800;
        font-size: 42px;
        line-height: 1.35;
        margin-bottom: 32px;
      }
      h2 {
        font-weight: 800;
        font-size: 32px;
        margin-bottom: 16px;
      }

      .h2-accent {
        display: inline-block;
        border-bottom: 4px solid var(--gold);
        padding-bottom: 8px;
        margin-bottom: 32px;
      }
      .text-sec {
        color: var(--text-sec);
      }
      .text-center {
        text-align: center;
      }

      /* Layout & Utilities */
      .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
      }
      .section-pad {
        padding: 72px 0;
      }

      /* Diagonal Slash Sections */
      .slash-section {
        position: relative;
        background-color: var(--card-bg);
        z-index: 1;
        margin: 40px 0;
        padding: 80px 0;
      }
      .slash-section.slash-top::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: inherit;
        transform: skewY(-4deg);
        transform-origin: top left;
        z-index: -1;
      }
      .slash-section.slash-both::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: inherit;
        transform: skewY(-4deg);
        z-index: -1;
      }

      /* Buttons */
      .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-family: var(--font-body);
        font-weight: 700;
        font-size: 16px;
        padding: 14px 28px;
        transition: all 0.3s ease;
        cursor: pointer;
        border-radius: 50px;
        gap: 8px;
      }
      .btn-primary {
        background: var(--gradient);
        color: #fff;
        border: none;
      }
      .btn-primary:hover {
        opacity: 0.9;
        transform: translateY(-2px);
        box-shadow: 0 4px 15px rgba(58, 159, 224, 0.4);
      }
      .btn-secondary {
        background: transparent;
        color: var(--secondary);
        border: 2px solid var(--secondary);
        border-radius: 5px;
      }
      .btn-secondary:hover {
        background: rgba(58, 159, 224, 0.1);
      }

      /* Platform Buttons (Removed SVGs, kept styling) */
      .btn-android {
        background: var(--gradient);
        color: #fff;
        border: none;
      }
      .btn-ios {
        background: transparent;
        color: #fff;
        border: 2px solid var(--ios-silver);
      }
      .btn-ios:hover {
        background: rgba(192, 192, 192, 0.1);
        transform: translateY(-2px);
      }

      /* Navbar */
      header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(13, 31, 78, 0.9);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border);
      }
      .nav-container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 80px;
      }
      .logo {
        font-family: var(--font-display);
        font-weight: 800;
        font-size: 24px;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 8px;
      }
      .logo svg {
        fill: var(--gold);
        width: 28px;
        height: 28px;
      }
      .nav-links {
        display: flex;
        gap: 32px;
      }
      .nav-links a {
        font-weight: 600;
        font-size: 15px;
        transition: color 0.2s;
      }
      .nav-links a.active,
      .nav-links a:hover {
        color: var(--secondary);
      }
      .nav-actions {
        display: flex;
        gap: 16px;
        align-items: center;
      }
      .hamburger {
        display: none;
        background: none;
        border: none;
        color: #fff;
        font-size: 24px;
        cursor: pointer;
      }

      /* Mobile Menu */
      .mobile-menu {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        padding: 24px;
        flex-direction: column;
        gap: 16px;
      }
      .mobile-menu.active {
        display: flex;
      }

      /* SECTION 1: HERO */
      .hero {
        position: relative;
        min-height: 600px;
        display: flex;
        align-items: center;
        overflow: hidden;
        padding: 80px 0;
      }
      .hero-bg {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(
          circle at 75% 50%,
          rgba(58, 159, 224, 0.15) 0%,
          transparent 60%
        );
        z-index: 0;
      }
      .hero-grid {
        display: grid;
        grid-template-columns: 55% 45%;
        align-items: center;
        gap: 40px;
        position: relative;
        z-index: 2;
        width: 100%;
      }
      /* Optimized paragraph for better readability */
      .hero-content p {
        font-size: 17px;
        line-height: 1.7;
        margin-bottom: 48px;
        color: var(--text-sec);
        max-width: 540px;
      }
      .hero-ctas {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
      }
      .hero-phones {
        position: relative;
        max-width: 480px;
        margin-left: auto;
        filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.5));
      }

      /* SECTION 2: APP FEATURES */
      .feature-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 40px 32px;
        text-align: center;
        margin-top: 40px;
      }
      .feature-item {
        display: flex;
        flex-direction: column;
        align-items: center;
      }
      .feature-icon {
        width: 40px;
        height: 40px;
        background: var(--secondary);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 16px;
      }
      .feature-icon svg {
        width: 20px;
        height: 20px;
        fill: #fff;
      }
      .feature-item h3 {
        font-family: var(--font-display);
        font-weight: 700;
        font-size: 15px;
        margin-bottom: 8px;
        color: #fff;
      }
      .feature-item p {
        font-size: 13px;
        color: var(--text-sec);
      }

      /* SECTIONS 3 & 4: DOWNLOAD GUIDES */
      .guide-grid {
        display: grid;
        grid-template-columns: 55% 45%;
        gap: 40px;
        align-items: center;
      }
      .guide-grid.mirror {
        grid-template-columns: 45% 55%;
      }
      .guide-phone {
        max-width: 280px;
        margin: 0 auto;
        filter: drop-shadow(0 15px 25px rgba(0, 0, 0, 0.3));
        border-radius: 20px;
      }
      .guide-grid.mirror .guide-phone {
        max-width: 260px;
      }

      .step-list-vert {
        display: flex;
        flex-direction: column;
        gap: 24px;
        margin-bottom: 32px;
      }
      .step-item-vert {
        display: flex;
        gap: 16px;
        align-items: flex-start;
      }
      .step-num-vert {
        font-family: var(--font-display);
        font-weight: 800;
        font-size: 36px;
        line-height: 1;
        margin-top: -4px;
      }
      .num-android {
        color: var(--success);
      }
      .num-ios {
        color: var(--secondary);
      }
      .step-content-vert h3 {
        font-family: var(--font-display);
        font-weight: 700;
        font-size: 16px;
        color: #fff;
        margin-bottom: 4px;
      }
      .step-content-vert p {
        font-size: 14px;
        color: var(--text-sec);
      }

      .req-card {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 16px 20px;
        margin-bottom: 32px;
      }
      .req-list {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 12px;
      }
      .req-item {
        display: flex;
        flex-direction: column;
        gap: 2px;
      }
      .req-label {
        font-weight: 700;
        font-size: 13px;
        color: var(--text-sec);
      }
      .req-value {
        font-size: 13px;
        color: #fff;
      }

      /* SECTION 5: SYS REQ TABLE */
      .table-wrap {
        max-width: 760px;
        margin: 0 auto;
        overflow-x: auto;
      }
      .sys-table {
        width: 100%;
        border-collapse: collapse;
        border: 1px solid var(--border);
        text-align: center;
      }
      .sys-table th {
        background: var(--gradient);
        color: #fff;
        font-family: var(--font-display);
        font-weight: 700;
        font-size: 14px;
        padding: 16px;
      }
      .sys-table td {
        padding: 14px 16px;
        font-size: 13px;
        border-bottom: 1px solid var(--border);
      }
      .sys-table tr:nth-child(even) {
        background-color: var(--card-bg);
      }
      .sys-table tr:nth-child(odd) {
        background-color: var(--card-bg-alt);
      }
      .sys-table td:first-child {
        text-align: left;
        font-weight: 600;
        color: var(--text-sec);
        border-right: 1px solid var(--border);
      }
      .check-android {
        color: var(--success);
        font-weight: bold;
        font-size: 16px;
      }
      .check-ios {
        color: var(--secondary);
        font-weight: bold;
        font-size: 16px;
      }

      /* SECTION 6: BROWSER MOCKUP */
      .browser-mockup {
        max-width: 800px;
        margin: 0 auto 40px auto;
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
      }
      .browser-bar {
        display: flex;
        align-items: center;
        padding: 12px 16px;
        background: rgba(0, 0, 0, 0.2);
        border-bottom: 1px solid var(--border);
      }
      .browser-dots {
        display: flex;
        gap: 6px;
        margin-right: 24px;
      }
      .dot {
        width: 12px;
        height: 12px;
        border-radius: 50%;
      }
      .dot-red {
        background: #e74c3c;
      }
      .dot-yel {
        background: var(--gold);
      }
      .dot-grn {
        background: var(--success);
      }
      .browser-url {
        flex-grow: 1;
        background: rgba(0, 0, 0, 0.2);
        padding: 6px 16px;
        border-radius: 4px;
        font-size: 13px;
        color: var(--text-sec);
        text-align: center;
        letter-spacing: 1px;
      }
      .browser-content {
        padding: 32px;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
      }
      .mock-card {
        aspect-ratio: 1/1;
        background: rgba(168, 191, 223, 0.1);
        border: 1px solid rgba(168, 191, 223, 0.15);
        border-radius: 8px;
      }

      .key-facts-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
        max-width: 640px;
        margin: 40px auto;
        text-align: center;
      }
      .fact-item {
        display: flex;
        flex-direction: column;
        align-items: center;
      }
      .fact-icon {
        width: 32px;
        height: 32px;
        margin-bottom: 12px;
      }
      .fact-icon svg {
        width: 32px;
        height: 32px;
        fill: none;
        stroke: var(--secondary);
        stroke-width: 1.5;
      }
      .fact-item p {
        font-size: 13px;
        color: var(--text-sec);
        font-weight: 600;
      }

      /* SECTION 7: FAQ & FINAL CTAS */
      .faq-wrap {
        max-width: 780px;
        margin: 0 auto 48px auto;
      }
      .faq-item {
        background: var(--card-bg);
        border-bottom: 1px solid var(--border);
      }
      .faq-question {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        padding: 24px;
        background: none;
        border: none;
        color: #fff;
        font-family: var(--font-display);
        font-weight: 600;
        font-size: 16px;
        cursor: pointer;
        text-align: left;
      }
      .faq-icon {
        transition: transform 0.3s ease;
        fill: var(--secondary);
        width: 24px;
        height: 24px;
      }
      .faq-item.active .faq-icon {
        transform: rotate(180deg);
      }
      .faq-answer {
        padding: 0 24px;
        max-height: 0;
        overflow: hidden;
        transition:
          max-height 0.3s ease,
          padding 0.3s ease;
        font-size: 15px;
        color: var(--text-sec);
      }
      .faq-item.active .faq-answer {
        padding: 0 24px 24px 24px;
        max-height: 400px;
      }

      .final-cta-row {
        display: flex;
        justify-content: center;
        gap: 16px;
        flex-wrap: wrap;
      }

      /* FOOTER */
      footer {
        background: #0a1638;
        padding: 60px 0 30px;
        border-top: 1px solid var(--border);
        font-size: 14px;
      }
      .footer-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
        margin-bottom: 40px;
      }
      .footer-col h4 {
        font-family: var(--font-display);
        font-weight: 700;
        margin-bottom: 20px;
        color: #fff;
      }
      .footer-col ul {
        display: flex;
        flex-direction: column;
        gap: 12px;
      }
      .footer-col a {
        color: var(--text-sec);
        transition: color 0.2s;
      }
      .footer-col a:hover {
        color: var(--secondary);
      }
      .footer-bottom {
        border-top: 1px solid var(--border);
        padding-top: 24px;
        text-align: center;
        color: var(--text-sec);
        font-size: 12px;
      }
      .footer-bottom p {
        margin-bottom: 8px;
      }

      /* FLOATING CTA */
      .floating-cta {
        position: fixed;
        bottom: 20px;
        right: 20px;
        z-index: 90;
        animation: pulse 2s infinite ease-in-out;
      }
      @keyframes pulse {
        0% {
          transform: scale(1);
        }
        50% {
          transform: scale(1.05);
        }
        100% {
          transform: scale(1);
        }
      }

      /* RESPONSIVE */
      @media (max-width: 1023px) {
        .feature-grid {
          grid-template-columns: repeat(2, 1fr);
        }
        .guide-grid,
        .guide-grid.mirror {
          grid-template-columns: 1fr;
          gap: 48px;
        }
        .guide-grid.mirror .guide-phone {
          order: -1;
        }
        .footer-grid {
          grid-template-columns: repeat(2, 1fr);
        }
      }

      @media (max-width: 767px) {
        h1 {
          font-size: 32px;
        }
        .section-pad {
          padding: 44px 0;
        }
        .slash-section {
          padding: 64px 0;
        }
        .nav-links,
        .nav-actions {
          display: none;
        }
        .hamburger {
          display: block;
        }

        .hero {
          min-height: auto;
          padding: 64px 0;
        }
        .hero-grid {
          grid-template-columns: 1fr;
          text-align: center;
        }
        .hero-phones {
          order: -1;
          max-width: 320px;
          margin: 0 auto;
        }
        .hero-content p {
          margin: 0 auto 32px auto;
        }
        .hero-ctas,
        .final-cta-row {
          flex-direction: column;
          align-items: stretch;
        }
        .btn {
          width: 100%;
          justify-content: center;
        }

        .feature-grid {
          grid-template-columns: 1fr;
          gap: 32px;
        }

        .guide-phone {
          max-width: 240px;
        }
        .req-list {
          grid-template-columns: 1fr;
        }

        .browser-content {
          grid-template-columns: repeat(2, 1fr);
          padding: 16px;
          gap: 12px;
        }
        .key-facts-grid {
          grid-template-columns: repeat(2, 1fr);
        }

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

        .floating-cta {
          bottom: 0;
          right: 0;
          left: 0;
          border-radius: 0;
          width: 100%;
          height: 56px;
          animation: none;
        }
      }