*,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
 
    :root {
      --ink: #15233D;
      --ink-soft: #57667D;
      --blue: #2455A4;
      --blue-light: #4D78C4;
      --blue-deep: #0E2245;
      --blue-deep2: #091733;
      --red: #DC2227;
      --paper: #FFFFFF;
      --mist: #F4F6FB;
      --line: #E3E8F2;
      --line-dark: rgba(255, 255, 255, 0.10);
      --muted-dark: #93A2C2;
      --display: 'Space Grotesk', sans-serif;
      --body: 'Inter', sans-serif;
      --mono: 'IBM Plex Mono', monospace;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--body);
      background: var(--paper);
      color: var(--ink);
      overflow-x: hidden;
      line-height: 1.65;
      font-size: 16px;
    }

    h1,
    h2,
    h3,
    .stat-num,
    .step-num,
    .nav-logo-badge {
      font-family: var(--display);
    }

    a {
      color: inherit;
    }

    /* ── NAV ── */
    nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 5%;
      height: 76px;
      background: rgba(255, 255, 255, 0.88);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--line);
    }

    .nav-logo {
      display: flex;
      align-items: center;
      gap: 14px;
      text-decoration: none;
      color: var(--ink);
    }

    .nav-logo img {
      height: 34px;
      width: auto;
      display: block;
    }

    .nav-logo-badge {
      background: var(--mist);
      color: var(--blue);
      border: 1px solid var(--line);
      font-size: 0.62rem;
      font-weight: 600;
      padding: 5px 10px;
      border-radius: 100px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      gap: 36px;
      list-style: none;
    }

    .nav-links a {
      color: var(--ink-soft);
      text-decoration: none;
      font-size: 0.875rem;
      font-weight: 500;
      transition: color 0.2s;
      position: relative;
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -6px;
      width: 0;
      height: 2px;
      background: var(--red);
      transition: width 0.2s;
    }

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

    .nav-links a:hover::after {
      width: 100%;
    }

    .nav-cta {
      background: var(--ink);
      color: #fff;
      border: none;
      padding: 11px 24px;
      border-radius: 6px;
      font-size: 0.85rem;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s;
      text-decoration: none;
      white-space: nowrap;
    }

    .nav-cta:hover {
      background: var(--blue);
    }

    /* ── ICON ── */
    .icon {
      width: 1em;
      height: 1em;
      display: inline-block;
      vertical-align: -0.15em;
    }

    .arc-mark {
      width: 18px;
      height: 18px;
      color: var(--red);
      flex-shrink: 0;
    }

    /* ────────────────────────────────
       HERO — SLIDER
    ──────────────────────────────── */
    #hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      padding: 130px 5% 90px;
      position: relative;
      overflow: hidden;
      background: radial-gradient(ellipse 85% 70% at 78% 12%, #16315E 0%, var(--blue-deep) 48%, var(--blue-deep2) 100%);
      color: #fff;
    }

    .hero-arcs {
      position: absolute;
      top: -10%;
      right: -8%;
      width: 640px;
      height: 640px;
      z-index: 0;
      pointer-events: none;
    }

    .hero-arcs circle {
      fill: none;
      stroke-width: 1;
    }

    .hero-arcs .a1 {
      stroke: rgba(77, 120, 196, 0.35);
    }

    .hero-arcs .a2 {
      stroke: rgba(77, 120, 196, 0.22);
    }

    .hero-arcs .a3 {
      stroke: rgba(220, 34, 39, 0.28);
    }

    .hero-arcs .a4 {
      stroke: rgba(255, 255, 255, 0.08);
    }

    .hero-arcs .src {
      fill: var(--red);
      animation: pulse 2.6s infinite;
    }

    @keyframes pulse {

      0%,
      100% {
        opacity: 1;
        transform: scale(1);
      }

      50% {
        opacity: 0.45;
        transform: scale(1.6);
      }
    }

    .hero-grid {
      position: absolute;
      inset: 0;
      z-index: 0;
      opacity: 0.05;
      background-image: linear-gradient(#fff 1px, transparent 1px), linear-gradient(90deg, #fff 1px, transparent 1px);
      background-size: 64px 64px;
      -webkit-mask-image: linear-gradient(180deg, transparent, #000 35%, #000 70%, transparent);
      mask-image: linear-gradient(180deg, transparent, #000 35%, #000 70%, transparent);
    }

    /* Wrap everything inside hero */
    .hero-wrap {
      position: relative;
      z-index: 2;
      width: 100%;
    }

    /* ── STATIC ELEMENTS (logo + buttons) ── */
    .hero-static {
      max-width: 760px;
      width: 58%;
    }

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid var(--line-dark);
      color: #fff;
      font-size: 0.72rem;
      font-weight: 600;
      padding: 8px 16px 8px 12px;
      border-radius: 100px;
      margin-bottom: 30px;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      font-family: var(--mono);
    }

    /* ── SLIDER CONTENT ── */
    .hero-slider {
      position: relative;
      min-height: 220px;
      /* reserve space so buttons don't jump */
      margin-bottom: 44px;
    }

    .hero-slide {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.7s ease, transform 0.7s ease;
      pointer-events: none;
    }

    .hero-slide.active {
      opacity: 1;
      transform: translateY(0);
      position: relative;
      pointer-events: auto;
    }

    h1 {
      font-size: clamp(2.5rem, 5.2vw, 4rem);
      font-weight: 700;
      line-height: 1.12;
      letter-spacing: -0.025em;
      margin-bottom: 20px;
    }

    h1 em {
      font-style: normal;
      background: linear-gradient(120deg, #7CA8EE, #ADC6F2 55%, #fff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-sub {
      font-size: 1.05rem;
      color: var(--muted-dark);
      max-width: 560px;
      font-weight: 400;
      line-height: 1.75;
    }

    /* slide tag / label */
    .slide-tag {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      font-size: 0.68rem;
      font-weight: 600;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      font-family: var(--mono);
      color: var(--red);
      margin-bottom: 16px;
      background: rgba(220, 34, 39, 0.08);
      border: 1px solid rgba(220, 34, 39, 0.22);
      padding: 5px 12px;
      border-radius: 100px;
    }

    .slide-tag .dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--red);
    }

    /* ── STATIC BUTTONS (always visible below slider) ── */
    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .btn-primary {
      background: var(--red);
      color: #fff;
      padding: 14px 26px;
      border-radius: 6px;
      font-weight: 600;
      font-size: 0.92rem;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
    }

    .btn-primary:hover {
      background: #c91d22;
      transform: translateY(-1px);
      box-shadow: 0 10px 28px rgba(220, 34, 39, 0.35);
    }

    .btn-primary .icon {
      transition: transform 0.15s;
    }

    .btn-primary:hover .icon {
      transform: translateX(3px);
    }

    .btn-ghost {
      background: transparent;
      color: #fff;
      padding: 14px 26px;
      border-radius: 6px;
      font-weight: 600;
      font-size: 0.92rem;
      text-decoration: none;
      border: 1px solid rgba(255, 255, 255, 0.22);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: border-color 0.2s, background 0.2s;
    }

    .btn-ghost:hover {
      border-color: #fff;
      background: rgba(255, 255, 255, 0.06);
    }

    /* ── SLIDER DOTS ── */
    .hero-dots {
      display: flex;
      gap: 8px;
      margin-top: 28px;
      align-items: center;
    }

    .hero-dot {
      width: 28px;
      height: 3px;
      border-radius: 2px;
      background: rgba(255, 255, 255, 0.22);
      cursor: pointer;
      transition: background 0.3s, width 0.3s;
      border: none;
      padding: 0;
      flex-shrink: 0;
    }

    .hero-dot.active {
      background: #fff;
      width: 44px;
    }

    /* ── PROGRESS BAR ── */
    .hero-progress {
      position: absolute;
      bottom: 0;
      left: 0;
      height: 2px;
      background: var(--red);
      width: 0%;
      transition: none;
      border-radius: 0 2px 2px 0;
    }

    /* ── LOGO ASIDE ── */
    .hero-logo {
      position: absolute;
      top: 50%;
      right: 7%;
      transform: translateY(-50%);
      z-index: 1;
      width: 520px;
      max-width: 36%;
      display: flex;
      justify-content: center;
      align-items: center;
      opacity: 0.96;
    }

    .hero-logo img {
      width: 100%;
      height: auto;
      display: block;
      filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.28));
    }

    /* ── STATS ── */
    .hero-stats {
      display: flex;
      gap: 56px;
      margin-top: 76px;
      padding-top: 36px;
      border-top: 1px solid var(--line-dark);
      flex-wrap: wrap;
      position: relative;
      z-index: 2;
    }

    .stat-num {
      font-size: clamp(1.8rem, 3.5vw, 2.6rem);
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    .stat-label {
      font-size: 0.75rem;
      color: var(--muted-dark);
      margin-top: 4px;
      font-weight: 500;
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    /* ── HERO RESPONSIVE ── */
    @media (max-width:980px) {
      #hero {
        min-height: auto;
        padding: 120px 6% 80px;
        display: block;
      }

      .hero-static {
        width: 100%;
        max-width: 100%;
      }

      .hero-logo {
        position: relative;
        top: auto;
        right: auto;
        transform: none;
        width: 330px;
        max-width: 78%;
        margin: 38px auto 0;
        z-index: 2;
      }

      .hero-stats {
        margin-top: 54px;
        gap: 34px;
      }
    }

    @media (max-width:640px) {
      #hero {
        padding: 115px 5% 70px;
      }

      .hero-arcs {
        width: 520px;
        height: 520px;
        top: -80px;
        right: -260px;
      }

      .hero-eyebrow {
        font-size: 0.62rem;
        line-height: 1.4;
        letter-spacing: 0.1em;
        padding: 7px 12px;
        margin-bottom: 24px;
      }

      h1 {
        font-size: clamp(2.45rem, 11.5vw, 3.6rem);
        line-height: 1.1;
        letter-spacing: -0.04em;
        margin-bottom: 26px;
      }

      .hero-sub {
        font-size: 1.05rem;
        line-height: 1.58;
      }

      .hero-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
      }

      .hero-actions a {
        width: 100%;
        text-align: center;
      }

      .hero-logo {
        width: 230px;
        max-width: 68%;
        margin: 34px auto 0;
      }

      .hero-stats {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 28px 24px;
        margin-top: 50px;
        padding-top: 32px;
      }

      .stat-num {
        font-size: 1.9rem;
      }

      .stat-label {
        font-size: 0.65rem;
      }

      .hero-slider {
        min-height: 260px;
      }
    }

    /* ── SECTION BASE ── */
    section {
      padding: 110px 5%;
    }

    .section-label-row {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }

    .section-label {
      font-size: 0.74rem;
      font-weight: 600;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--red);
      font-family: var(--mono);
    }

    section.dark .section-label {
      color: #FF6166;
    }

    .section-title {
      font-size: clamp(1.7rem, 3.2vw, 2.6rem);
      font-weight: 700;
      letter-spacing: -0.025em;
      line-height: 1.18;
      margin-bottom: 16px;
    }

    .section-sub {
      color: var(--ink-soft);
      font-size: 1rem;
      max-width: 540px;
      line-height: 1.75;
    }

    section.dark .section-sub {
      color: var(--muted-dark);
    }

    .section-header {
      margin-bottom: 64px;
    }

    /* ── ABOUT ── */
    #about {
      background: var(--mist);
    }

    .about-logo-title {
      width: 420px;
      max-width: 100%;
      height: auto;
      display: block;
      margin: 12px 0 24px;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 0.95fr 1.05fr;
      gap: 80px;
      align-items: center;
    }

    .signal-map {
      position: relative;
      width: 520px;
      height: 520px;
      max-width: 100%;
      margin: 0 auto;
    }

    .signal-arcs {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      overflow: visible;
    }

    .signal-arcs circle {
      fill: none;
      stroke: rgba(0, 72, 160, 0.16);
      stroke-width: 1.2;
    }

    .signal-arcs circle.acc {
      stroke: rgba(0, 72, 160, 0.28);
      stroke-dasharray: 6 8;
    }

    .signal-arcs line {
      stroke: rgba(0, 72, 160, 0.18);
      stroke-width: 1.2;
    }

    .signal-center {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 170px;
      height: 170px;
      transform: translate(-50%, -50%);
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.85);
      box-shadow: 0 18px 45px rgba(15, 35, 70, 0.16);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 3;
    }

    .signal-center img {
      width: 130px;
      max-width: 78%;
      height: auto;
      display: block;
    }

    .signal-node {
      position: absolute;
      transform: translate(-50%, -50%);
      z-index: 4;
      padding: 12px 22px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.92);
      border: 1px solid rgba(0, 72, 160, 0.12);
      box-shadow: 0 14px 32px rgba(15, 35, 70, 0.12);
      color: #0048a0;
      font-weight: 700;
      font-size: 14px;
      white-space: nowrap;
    }

    .about-features {
      display: flex;
      flex-direction: column;
      gap: 26px;
      margin-top: 40px;
    }

    .feature-item {
      display: flex;
      gap: 18px;
      align-items: flex-start;
    }

    .feature-icon {
      width: 42px;
      height: 42px;
      border-radius: 10px;
      background: rgba(36, 85, 164, 0.08);
      border: 1px solid rgba(36, 85, 164, 0.16);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      font-size: 1.2rem;
      color: var(--blue);
    }

    .feature-title {
      font-weight: 600;
      font-size: 0.98rem;
      margin-bottom: 4px;
      letter-spacing: -0.01em;
    }

    .feature-desc {
      color: var(--ink-soft);
      font-size: 0.875rem;
      line-height: 1.65;
    }

    /* ── PRODUCTS ── */
    #products {
      position: relative;
      background: var(--paper);
    }

    .products-intro {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      margin-bottom: 60px;
      flex-wrap: wrap;
      gap: 24px;
    }

    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .product-card {
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 30px;
      transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
      position: relative;
    }

    .product-card:hover {
      transform: translateY(-4px);
      border-color: var(--blue);
      box-shadow: 0 16px 40px rgba(21, 35, 61, 0.08);
    }

    .product-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.66rem;
      font-weight: 600;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      padding: 5px 11px;
      border-radius: 100px;
      margin-bottom: 20px;
      font-family: var(--mono);
    }

    .badge-flag {
      background: rgba(220, 34, 39, 0.08);
      color: var(--red);
      border: 1px solid rgba(220, 34, 39, 0.2);
    }

    .badge-blue {
      background: rgba(36, 85, 164, 0.08);
      color: var(--blue);
      border: 1px solid rgba(36, 85, 164, 0.2);
    }

    .badge-slate {
      background: var(--mist);
      color: var(--ink-soft);
      border: 1px solid var(--line);
    }

    .product-icon {
      width: 46px;
      height: 46px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      margin-bottom: 18px;
      background: var(--mist);
      color: var(--blue);
      border: 1px solid var(--line);
    }

    .product-name {
      font-size: 1.08rem;
      font-weight: 700;
      margin-bottom: 10px;
      letter-spacing: -0.01em;
    }

    .product-desc {
      color: var(--ink-soft);
      font-size: 0.875rem;
      line-height: 1.7;
      margin-bottom: 22px;
    }

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

    .tag {
      font-size: 0.68rem;
      font-weight: 600;
      padding: 4px 11px;
      border-radius: 100px;
      background: var(--mist);
      border: 1px solid var(--line);
      color: var(--ink-soft);
      font-family: var(--mono);
    }

    .product-card.featured {
      grid-column: span 2;
      background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue-deep2) 100%);
      border-color: var(--blue-deep);
      color: #fff;
      overflow: hidden;
      position: relative;
    }

    .product-card.featured::before {
      content: '';
      position: absolute;
      inset: 0;
      background-image: radial-gradient(circle, rgba(255, 255, 255, 0.45) 1px, transparent 1px);
      background-size: 28px 28px;
      -webkit-mask-image: radial-gradient(ellipse 60% 80% at 100% 0%, #000 0%, transparent 70%);
      mask-image: radial-gradient(ellipse 60% 80% at 100% 0%, #000 0%, transparent 70%);
      opacity: 0.35;
    }

    .product-card.featured .product-icon {
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--line-dark);
      color: #fff;
    }

    .product-card.featured .product-desc {
      color: var(--muted-dark);
    }

    .product-card.featured .tag {
      background: rgba(255, 255, 255, 0.06);
      border-color: var(--line-dark);
      color: var(--muted-dark);
    }

    .product-card.featured:hover {
      border-color: rgba(255, 255, 255, 0.25);
    }

    .featured-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
      position: relative;
      z-index: 1;
    }

    .feat-box {
      border-radius: 10px;
      padding: 20px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--line-dark);
    }

    .feat-box+.feat-box {
      margin-top: 14px;
    }

    .feat-box-label {
      font-size: 0.68rem;
      text-transform: uppercase;
      letter-spacing: 0.14em;
      color: var(--muted-dark);
      margin-bottom: 10px;
      font-family: var(--mono);
      font-weight: 600;
    }

    .feat-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .feat-list li {
      font-size: 0.84rem;
      color: var(--muted-dark);
      display: flex;
      gap: 10px;
      align-items: flex-start;
    }

    .feat-list li .icon {
      color: var(--red);
      flex-shrink: 0;
      margin-top: 3px;
      width: 14px;
      height: 14px;
    }

    .feat-box.accent {
      background: rgba(220, 34, 39, 0.07);
      border-color: rgba(220, 34, 39, 0.18);
    }

    .feat-box.accent .feat-box-label {
      color: #FF8A8E;
    }

    .feat-box.accent p {
      font-size: 0.84rem;
      color: var(--muted-dark);
    }

    /* ── PROCESS ── */
    #process {
      background: var(--blue-deep2);
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    #process::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse 70% 50% at 15% 100%, rgba(220, 34, 39, 0.10), transparent 60%),
        radial-gradient(ellipse 60% 50% at 85% 0%, rgba(36, 85, 164, 0.25), transparent 60%);
    }

    #process>* {
      position: relative;
      z-index: 1;
    }

    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      margin-top: 64px;
      position: relative;
    }

    .process-steps::before {
      content: '';
      position: absolute;
      top: 27px;
      left: 0;
      right: 0;
      height: 1px;
      background: repeating-linear-gradient(90deg, var(--line-dark) 0 8px, transparent 8px 16px);
      z-index: 0;
    }

    .step {
      position: relative;
      z-index: 1;
    }

    .step-num {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: var(--blue-deep2);
      border: 1.5px solid var(--blue-light);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1rem;
      color: #fff;
      margin-bottom: 26px;
    }

    .step:last-child .step-num {
      border-color: var(--red);
    }

    .step-title {
      font-weight: 600;
      font-size: 1rem;
      margin-bottom: 10px;
      letter-spacing: -0.005em;
    }

    .step-desc {
      color: var(--muted-dark);
      font-size: 0.86rem;
      line-height: 1.7;
    }

    /* ── WHY ── */
    #why {
      background: var(--paper);
    }

    .why-grid {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 80px;
      align-items: center;
    }

    .why-cards {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .why-card {
      background: var(--mist);
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 26px;
      transition: border-color 0.2s, transform 0.2s;
    }

    .why-card:hover {
      border-color: var(--blue);
      transform: translateY(-3px);
    }

    .why-card-icon {
      width: 38px;
      height: 38px;
      border-radius: 9px;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(36, 85, 164, 0.08);
      color: var(--blue);
      font-size: 1.1rem;
    }

    .why-card-title {
      font-weight: 700;
      font-size: 0.95rem;
      margin-bottom: 6px;
      letter-spacing: -0.005em;
    }

    .why-card-desc {
      color: var(--ink-soft);
      font-size: 0.82rem;
      line-height: 1.65;
    }

    .why-text .section-sub {
      margin-bottom: 32px;
    }

    .why-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .why-list li {
      display: flex;
      align-items: center;
      gap: 14px;
      color: var(--ink);
      font-size: 0.92rem;
      font-weight: 500;
    }

    .why-list li .arc-mark {
      width: 26px;
      height: 26px;
      padding: 5px;
      border-radius: 50%;
      background: rgba(220, 34, 39, 0.08);
      color: var(--red);
    }

    /* ── CTA ── */
    #cta {
      background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue-deep2) 60%, #081020 100%);
      padding: 110px 5%;
      color: #fff;
      border-top: 1px solid var(--line-dark);
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-arcs {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 900px;
      height: 900px;
      pointer-events: none;
    }

    .cta-arcs circle {
      fill: none;
      stroke-width: 1;
      stroke: rgba(77, 120, 196, 0.16);
    }

    .cta-arcs .r {
      stroke: rgba(220, 34, 39, 0.16);
    }

    #cta .section-label-row {
      justify-content: center;
    }

    #cta .section-title {
      margin: 0 auto 16px;
      max-width: 620px;
      position: relative;
    }

    #cta .section-sub {
      margin: 0 auto 40px;
      text-align: center;
      position: relative;
    }

    .cta-actions {
      display: flex;
      gap: 14px;
      justify-content: center;
      flex-wrap: wrap;
      position: relative;
    }

    .cta-actions .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    /* ── FOOTER ── */
    footer {
      background: #081020;
      color: #fff;
      padding: 64px 5% 40px;
      border-top: 1px solid var(--line-dark);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1fr;
      gap: 60px;
      margin-bottom: 48px;
    }

    .footer-brand {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .footer-logo img {
      height: 36px;
      width: auto;
    }

    .footer-logo-text {
      font-family: var(--display);
      font-weight: 600;
      font-size: 1.05rem;
      line-height: 1.3;
      color: #fff;
    }

    .footer-brand p {
      color: var(--muted-dark);
      font-size: 0.85rem;
      line-height: 1.75;
      max-width: 280px;
    }

    .footer-col h4 {
      font-size: 0.74rem;
      font-weight: 600;
      letter-spacing: 0.16em;
      text-transform: uppercase;
      color: var(--muted-dark);
      margin-bottom: 18px;
      font-family: var(--mono);
    }

    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 11px;
    }

    .footer-col ul a {
      color: #D7DFEE;
      text-decoration: none;
      font-size: 0.875rem;
      transition: color 0.2s;
    }

    .footer-col ul a:hover {
      color: #fff;
    }

    .footer-bottom {
      border-top: 1px solid var(--line-dark);
      padding-top: 28px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }

    .footer-bottom p {
      color: var(--muted-dark);
      font-size: 0.8rem;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .social-btn {
      width: 38px;
      height: 38px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--line-dark);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--muted-dark);
      text-decoration: none;
      font-size: 1rem;
      transition: border-color 0.2s, color 0.2s;
    }

    .social-btn .icon {
      width: 16px;
      height: 16px;
    }

    .social-btn:hover {
      border-color: var(--blue-light);
      color: #fff;
    }

    .divider {
      height: 1px;
      background: var(--line);
      margin: 0 5%;
    }

    /* ── RESPONSIVE ── */
    @media (max-width:980px) {
      .products-grid {
        grid-template-columns: 1fr 1fr;
      }

      .product-card.featured {
        grid-column: span 2;
      }

      .about-grid,
      .why-grid {
        grid-template-columns: 1fr;
      }

      .signal-map {
        display: none;
      }

      .process-steps {
        grid-template-columns: 1fr 1fr;
      }

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

      nav .nav-links {
        display: none;
      }
    }

    @media (max-width:640px) {
      section {
        padding: 80px 6%;
      }

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

      .product-card.featured {
        grid-column: span 1;
      }

      .featured-inner {
        grid-template-columns: 1fr;
      }

      .process-steps {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .process-steps::before {
        display: none;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .why-cards {
        grid-template-columns: 1fr;
      }

      .nav-logo-badge {
        display: none;
      }
    }

    /* ── SCROLL REVEAL ── */
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .reveal.visible {
      opacity: 1;
      transform: none;
    }

    @media (prefers-reduced-motion:reduce) {
      html {
        scroll-behavior: auto;
      }

      .reveal {
        opacity: 1;
        transform: none;
        transition: none;
      }

      .hero-arcs .src {
        animation: none;
      }
    }