/* ================================================================
         1. Design tokens, reset and global typography
         ================================================================ */
      :root {
        --navy-950: #050b14;
        --navy-900: #07111f;
        --navy-850: #091626;
        --navy-800: #0a1930;
        --blue: #168bff;
        --blue-action: #0874d9;
        --cyan: #00d5ff;
        --violet: #6246ff;
        --white: #ffffff;
        --mist: #f3f6fa;
        --muted: #94a3b8;
        --muted-dark: #64748b;
        --line: rgba(148, 163, 184, 0.18);
        --line-bright: rgba(0, 213, 255, 0.27);
        --glass: rgba(10, 25, 48, 0.68);
        --radius-xl: 28px;
        --radius-lg: 20px;
        --radius-md: 14px;
        --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
        --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
        --shadow: 0 30px 90px rgba(0, 0, 0, 0.3);
        --shadow-card: 0 16px 50px rgba(0, 0, 0, 0.14);
        --shadow-lift: 0 24px 70px rgba(0, 0, 0, 0.22);
        --max: 1180px;
      }

      * {
        box-sizing: border-box;
      }

      html {
        scroll-behavior: smooth;
        scroll-padding-top: 92px;
      }

      body {
        margin: 0;
        color: var(--white);
        background:
          radial-gradient(circle at 11% 7%, rgba(22, 139, 255, 0.13), transparent 28rem),
          radial-gradient(circle at 92% 18%, rgba(98, 70, 255, 0.12), transparent 30rem),
          var(--navy-950);
        font-family:
          Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
          sans-serif;
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
        line-height: 1.6;
        overflow-x: hidden;
      }

      ::selection {
        color: var(--white);
        background: rgba(98, 70, 255, 0.72);
      }

      body::before {
        content: "";
        position: fixed;
        inset: 0;
        z-index: -2;
        pointer-events: none;
        background-image:
          linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
          linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
        background-size: 54px 54px;
        mask-image: linear-gradient(to bottom, black, transparent 78%);
      }

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

      button,
      input,
      select,
      textarea {
        font: inherit;
      }

      button,
      a {
        -webkit-tap-highlight-color: transparent;
      }

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

      :focus-visible {
        outline: 2px solid var(--cyan);
        outline-offset: 4px;
        box-shadow: 0 0 0 5px rgba(0, 213, 255, 0.13);
      }

      .skip-link {
        position: fixed;
        z-index: 2000;
        top: 12px;
        left: 12px;
        padding: 10px 16px;
        border-radius: 10px;
        background: var(--white);
        color: var(--navy-950);
        transform: translateY(-160%);
        transition: transform 0.2s ease;
      }

      .skip-link:focus {
        transform: translateY(0);
      }

      .container {
        width: min(calc(100% - 40px), var(--max));
        margin-inline: auto;
      }

      .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 9px;
        margin: 0 0 18px;
        color: var(--cyan);
        font-size: 0.77rem;
        font-weight: 800;
        letter-spacing: 0.16em;
        text-transform: uppercase;
      }

      .eyebrow::before {
        content: "";
        width: 28px;
        height: 1px;
        background: linear-gradient(90deg, var(--cyan), var(--violet));
        box-shadow: 0 0 10px rgba(0, 213, 255, 0.35);
      }

      h1,
      h2,
      h3,
      p {
        margin-top: 0;
      }

      h1,
      h2,
      h3 {
        line-height: 1.08;
        letter-spacing: -0.035em;
        text-wrap: balance;
      }

      h1 {
        margin-bottom: 24px;
        font-size: clamp(3rem, 5.8vw, 5rem);
        font-weight: 760;
        line-height: 1.02;
        max-width: 900px;
      }

      h2 {
        margin-bottom: 18px;
        font-size: clamp(2.2rem, 4.3vw, 4.25rem);
      }

      h3 {
        margin-bottom: 12px;
        font-size: 1.24rem;
      }

      .gradient-text {
        color: transparent;
        background: linear-gradient(100deg, var(--cyan) 0%, var(--blue) 48%, #8c76ff 100%);
        background-size: 160% auto;
        background-clip: text;
        -webkit-background-clip: text;
        animation: gradient-drift 9s ease-in-out infinite alternate;
      }

      .section {
        position: relative;
        padding: 124px 0;
      }

      .section-header {
        max-width: 800px;
        margin-bottom: 54px;
      }

      .section-header p,
      .lead {
        color: var(--muted);
        font-size: clamp(1.02rem, 1.8vw, 1.2rem);
        text-wrap: pretty;
      }

      .btn {
        position: relative;
        display: inline-flex;
        min-height: 52px;
        align-items: center;
        justify-content: center;
        gap: 10px;
        padding: 0 22px;
        border: 1px solid transparent;
        border-radius: 999px;
        cursor: pointer;
        font-weight: 750;
        isolation: isolate;
        overflow: hidden;
        transition:
          transform 0.32s var(--ease-out),
          border-color 0.32s ease,
          box-shadow 0.32s ease,
          background 0.32s ease;
      }

      .btn::before {
        content: "";
        position: absolute;
        inset: 0;
        pointer-events: none;
        background: linear-gradient(110deg, transparent 22%, rgba(255, 255, 255, 0.16) 48%, transparent 74%);
        transform: translateX(-125%);
        transition: transform 0.72s var(--ease-out);
      }

      .btn span {
        transition: transform 0.32s var(--ease-out);
      }

      .btn:active {
        transform: translateY(0) scale(0.985);
      }

      .btn-primary {
        color: var(--white);
        background: linear-gradient(115deg, var(--blue-action), var(--violet));
        box-shadow: 0 14px 34px rgba(22, 139, 255, 0.22);
      }

      .btn-primary:hover {
        box-shadow:
          0 20px 46px rgba(22, 139, 255, 0.32),
          0 0 0 1px rgba(255, 255, 255, 0.08);
      }

      .btn-secondary {
        color: var(--white);
        border-color: var(--line);
        background: rgba(255, 255, 255, 0.04);
        backdrop-filter: blur(12px);
      }

      .btn-secondary:hover {
        border-color: var(--line-bright);
        background: rgba(0, 213, 255, 0.06);
      }

      /* ================================================================
         2. Fixed navigation
         ================================================================ */
      .site-header {
        position: fixed;
        z-index: 1000;
        inset: 0 0 auto;
        padding: 13px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        background: rgba(5, 11, 20, 0.76);
        backdrop-filter: blur(22px) saturate(145%);
        transition:
          padding 0.32s var(--ease-out),
          background-color 0.32s ease,
          border-color 0.32s ease,
          box-shadow 0.32s ease;
      }

      .site-header.is-scrolled {
        padding-block: 9px;
        border-color: rgba(0, 213, 255, 0.13);
        background: rgba(5, 11, 20, 0.92);
        box-shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
      }

      .nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 28px;
      }

      .brand {
        flex: 0 0 auto;
      }

      .brand img {
        width: 182px;
        height: 52px;
        object-fit: cover;
        object-position: center;
        border-radius: 8px;
        transition:
          transform 0.4s var(--ease-out),
          filter 0.4s ease;
      }

      .nav-links {
        display: flex;
        align-items: center;
        gap: 22px;
        color: #cbd5e1;
        font-size: 0.88rem;
        font-weight: 650;
      }

      .nav-links a:not(.btn) {
        position: relative;
        display: inline-flex;
        min-height: 44px;
        align-items: center;
        transition: color 0.28s ease;
      }

      .nav-links a:not(.btn)::after {
        content: "";
        position: absolute;
        right: 0;
        bottom: 7px;
        left: 0;
        height: 1px;
        background: linear-gradient(90deg, var(--cyan), var(--violet));
        box-shadow: 0 0 9px rgba(0, 213, 255, 0.35);
        transform: scaleX(0);
        transform-origin: right;
        transition: transform 0.34s var(--ease-out);
      }

      .nav-links a:not(.btn):hover {
        color: var(--cyan);
      }

      .nav-links a:not(.btn).is-active {
        color: var(--cyan);
      }

      .nav-links a:not(.btn).is-active::after {
        transform: scaleX(1);
        transform-origin: left;
      }

      .nav-toggle {
        display: none;
        width: 46px;
        height: 46px;
        padding: 0;
        border: 1px solid var(--line);
        border-radius: 12px;
        color: var(--white);
        background: rgba(255, 255, 255, 0.04);
        cursor: pointer;
        transition:
          border-color 0.28s ease,
          background-color 0.28s ease,
          transform 0.28s var(--ease-out);
      }

      .nav-toggle span,
      .nav-toggle::before,
      .nav-toggle::after {
        content: "";
        display: block;
        width: 20px;
        height: 2px;
        margin: 4px auto;
        border-radius: 999px;
        background: currentColor;
        transition:
          transform 0.3s var(--ease-out),
          opacity 0.2s ease;
      }

      .nav-toggle[aria-expanded="true"] {
        border-color: rgba(0, 213, 255, 0.42);
        background: rgba(0, 213, 255, 0.08);
      }

      .nav-toggle[aria-expanded="true"]::before {
        transform: translateY(6px) rotate(45deg);
      }

      .nav-toggle[aria-expanded="true"] span {
        opacity: 0;
      }

      .nav-toggle[aria-expanded="true"]::after {
        transform: translateY(-6px) rotate(-45deg);
      }

      /* ================================================================
         3. Hero and automation map
         ================================================================ */
      .hero {
        position: relative;
        display: grid;
        min-height: 100svh;
        align-items: center;
        padding: 126px 0 72px;
        isolation: isolate;
      }

      .hero::before {
        content: "";
        position: absolute;
        z-index: -1;
        top: 6%;
        left: -24%;
        width: min(72vw, 900px);
        aspect-ratio: 1;
        pointer-events: none;
        background: radial-gradient(circle, rgba(22, 139, 255, 0.13), transparent 62%);
        filter: blur(16px);
        animation: ambient-drift 12s ease-in-out infinite alternate;
      }

      .hero-layout {
        display: grid;
        align-items: center;
        grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.72fr);
        gap: clamp(44px, 6vw, 86px);
      }

      .hero-copy .lead {
        max-width: 720px;
        margin-bottom: 32px;
        font-size: clamp(1.08rem, 2vw, 1.28rem);
      }

      .hero-copy > * {
        animation: hero-enter 0.82s var(--ease-out) both;
      }

      .hero-copy > :nth-child(2) {
        animation-delay: 0.06s;
      }

      .hero-copy > :nth-child(3) {
        animation-delay: 0.12s;
      }

      .hero-copy > :nth-child(4) {
        animation-delay: 0.18s;
      }

      .hero-copy > :nth-child(5) {
        animation-delay: 0.24s;
      }

      .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
      }

      .hero-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 9px;
        margin-top: 34px;
      }

      .tag {
        padding: 7px 11px;
        border: 1px solid rgba(148, 163, 184, 0.14);
        border-radius: 999px;
        color: #b9c6d8;
        background: rgba(255, 255, 255, 0.025);
        font-size: 0.76rem;
        font-weight: 700;
        backdrop-filter: blur(10px);
        transition:
          color 0.28s ease,
          border-color 0.28s ease,
          background-color 0.28s ease,
          transform 0.28s var(--ease-out);
      }

      .system-map {
        position: relative;
        min-height: 520px;
        border: 1px solid rgba(148, 163, 184, 0.18);
        border-radius: 36px;
        background:
          radial-gradient(circle at 50% 40%, rgba(22, 139, 255, 0.18), transparent 38%),
          linear-gradient(145deg, rgba(10, 25, 48, 0.78), rgba(5, 11, 20, 0.92));
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.045),
          0 34px 110px rgba(0, 0, 0, 0.34),
          0 0 70px rgba(22, 139, 255, 0.08);
        overflow: hidden;
        animation: hero-enter 1s 0.18s var(--ease-out) both;
      }

      .system-map::before,
      .system-map::after {
        content: "";
        position: absolute;
        border: 1px solid rgba(0, 213, 255, 0.12);
        border-radius: 50%;
      }

      .system-map::before {
        width: 320px;
        height: 320px;
        inset: 98px auto auto 50%;
        border-style: dashed;
        transform: translateX(-50%);
        animation: orbit-ring 24s linear infinite;
      }

      .system-map::after {
        width: 210px;
        height: 210px;
        inset: 153px auto auto 50%;
        transform: translateX(-50%);
        animation: orbit-ring-reverse 18s linear infinite;
      }

      .map-core {
        position: absolute;
        z-index: 3;
        top: 50%;
        left: 50%;
        display: grid;
        width: 132px;
        height: 132px;
        place-items: center;
        border: 1px solid rgba(0, 213, 255, 0.4);
        border-radius: 32px;
        background: linear-gradient(145deg, rgba(22, 139, 255, 0.22), rgba(98, 70, 255, 0.16));
        box-shadow:
          0 0 70px rgba(22, 139, 255, 0.22),
          inset 0 0 24px rgba(0, 213, 255, 0.08);
        transform: translate(-50%, -50%);
        animation: core-breathe 5s ease-in-out infinite;
      }

      .map-core::before {
        content: "";
        position: absolute;
        inset: -13px;
        border: 1px solid rgba(98, 70, 255, 0.2);
        border-radius: 40px;
        pointer-events: none;
      }

      .map-core strong {
        font-size: 1.8rem;
        letter-spacing: -0.08em;
      }

      .map-core span {
        display: block;
        color: var(--cyan);
        font-size: 0.66rem;
        letter-spacing: 0.18em;
        text-align: center;
        text-transform: uppercase;
      }

      .map-node {
        position: absolute;
        z-index: 4;
        min-width: 120px;
        padding: 12px 14px;
        border: 1px solid rgba(148, 163, 184, 0.16);
        border-radius: 14px;
        background: rgba(7, 17, 31, 0.9);
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
        color: #dbeafe;
        font-size: 0.75rem;
        font-weight: 760;
        backdrop-filter: blur(14px);
        animation: node-float 6s ease-in-out infinite;
      }

      .map-node::before {
        content: "";
        display: inline-block;
        width: 7px;
        height: 7px;
        margin-right: 8px;
        border-radius: 50%;
        background: var(--cyan);
        box-shadow: 0 0 14px var(--cyan);
      }

      .node-one {
        top: 62px;
        left: 28px;
      }

      .node-two {
        top: 106px;
        right: 24px;
        animation-delay: -1.6s;
      }

      .node-three {
        right: 31px;
        bottom: 86px;
        animation-delay: -3.2s;
      }

      .node-four {
        bottom: 58px;
        left: 31px;
        animation-delay: -4.5s;
      }

      .system-status {
        position: absolute;
        right: 24px;
        bottom: 22px;
        left: 24px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding-top: 17px;
        border-top: 1px solid var(--line);
        color: var(--muted);
        font-size: 0.72rem;
      }

      .status-live {
        color: #75f6c7;
        font-weight: 750;
      }

      .status-live::before {
        content: "";
        display: inline-block;
        width: 7px;
        height: 7px;
        margin-right: 7px;
        border-radius: 50%;
        background: #45e0a3;
        box-shadow: 0 0 12px #45e0a3;
        animation: signal-pulse 2.2s ease-in-out infinite;
      }

      /* ================================================================
         4. Shared sections, cards and content grids
         ================================================================ */
      .soft-section {
        color: var(--navy-900);
        background: linear-gradient(180deg, #f5f8fb 0%, #eef3f8 100%);
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.82),
          inset 0 -1px 0 rgba(7, 17, 31, 0.05);
      }

      .soft-section .eyebrow {
        color: #0869d3;
      }

      .soft-section .section-header p,
      .soft-section .lead {
        color: #56677e;
      }

      .intro-grid {
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 72px;
        align-items: start;
      }

      .intro-statement {
        font-size: clamp(1.65rem, 3.3vw, 3rem);
        line-height: 1.18;
        letter-spacing: -0.035em;
      }

      .check-list {
        display: grid;
        gap: 12px;
        margin: 28px 0 0;
        padding: 0;
        list-style: none;
      }

      .check-list li {
        position: relative;
        padding-left: 30px;
        color: #4a5d73;
      }

      .check-list li::before {
        content: "✓";
        position: absolute;
        left: 0;
        display: grid;
        width: 21px;
        height: 21px;
        place-items: center;
        border-radius: 50%;
        color: #0458b8;
        background: rgba(22, 139, 255, 0.1);
        font-size: 0.72rem;
        font-weight: 900;
      }

      .pillar-grid,
      .problem-grid,
      .solution-grid,
      .benefit-grid,
      .size-grid,
      .founder-grid {
        display: grid;
        gap: 16px;
      }

      .pillar-grid {
        grid-template-columns: repeat(3, 1fr);
        margin-top: 68px;
      }

      .pillar-card {
        min-height: 230px;
        padding: 28px;
        border: 1px solid #d9e1eb;
        border-radius: var(--radius-lg);
        background: var(--white);
        box-shadow:
          0 18px 45px rgba(7, 17, 31, 0.06),
          inset 0 1px 0 rgba(255, 255, 255, 0.9);
        transition:
          transform 0.4s var(--ease-out),
          border-color 0.4s ease,
          box-shadow 0.4s ease;
      }

      .number {
        display: inline-grid;
        width: 38px;
        height: 38px;
        margin-bottom: 34px;
        place-items: center;
        border: 1px solid rgba(22, 139, 255, 0.22);
        border-radius: 12px;
        color: #0869d3;
        background: rgba(22, 139, 255, 0.07);
        font-size: 0.72rem;
        font-weight: 850;
      }

      .pillar-card p {
        margin-bottom: 0;
        color: #5f6f82;
      }

      .problem-grid {
        grid-template-columns: repeat(3, 1fr);
      }

      .problem-card,
      .solution-card,
      .benefit-card,
      .size-card,
      .founder-card {
        position: relative;
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        background: linear-gradient(145deg, rgba(10, 25, 48, 0.66), rgba(7, 17, 31, 0.42));
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.035),
          0 16px 46px rgba(0, 0, 0, 0.1);
        overflow: hidden;
      }

      .problem-card {
        min-height: 210px;
        padding: 25px;
      }

      .problem-card::after,
      .solution-card::after {
        content: "";
        position: absolute;
        right: -54px;
        bottom: -54px;
        width: 115px;
        height: 115px;
        border: 1px solid rgba(0, 213, 255, 0.12);
        border-radius: 50%;
        transition:
          transform 0.55s var(--ease-out),
          border-color 0.4s ease;
      }

      .problem-card::before,
      .solution-card::before {
        content: "";
        position: absolute;
        z-index: 2;
        inset: 0 24px auto;
        height: 1px;
        pointer-events: none;
        background: linear-gradient(90deg, transparent, rgba(0, 213, 255, 0.5), transparent);
        opacity: 0;
        transform: scaleX(0.6);
        transition:
          opacity 0.4s ease,
          transform 0.5s var(--ease-out);
      }

      .card-kicker {
        display: block;
        margin-bottom: 34px;
        color: var(--cyan);
        font-size: 0.7rem;
        font-weight: 800;
        letter-spacing: 0.12em;
        text-transform: uppercase;
      }

      .problem-card p,
      .solution-card p,
      .benefit-card p,
      .size-card p,
      .founder-card p {
        margin-bottom: 0;
        color: var(--muted);
        font-size: 0.91rem;
      }

      .solution-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .solution-card {
        display: grid;
        min-height: 220px;
        grid-template-columns: auto 1fr;
        gap: 22px;
        padding: 27px;
      }

      .solution-icon {
        display: grid;
        width: 48px;
        height: 48px;
        place-items: center;
        border: 1px solid rgba(0, 213, 255, 0.28);
        border-radius: 15px;
        color: var(--cyan);
        background: rgba(0, 213, 255, 0.055);
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.06),
          0 12px 28px rgba(0, 213, 255, 0.08);
        font-size: 0.74rem;
        font-weight: 850;
        transition:
          color 0.35s ease,
          border-color 0.35s ease,
          background-color 0.35s ease,
          transform 0.4s var(--ease-out),
          box-shadow 0.35s ease;
      }

      .solution-card h3 {
        margin-top: 3px;
      }

      /* ================================================================
         5. Interactive challenge explorer
         ================================================================ */
      .challenge-shell {
        position: relative;
        padding: 34px;
        border: 1px solid var(--line);
        border-radius: var(--radius-xl);
        background:
          radial-gradient(circle at 80% 10%, rgba(98, 70, 255, 0.15), transparent 18rem),
          rgba(7, 17, 31, 0.65);
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.04),
          0 30px 90px rgba(0, 0, 0, 0.25);
        overflow: hidden;
      }

      .challenge-shell::before {
        content: "";
        position: absolute;
        inset: 0 8% auto;
        height: 1px;
        pointer-events: none;
        background: linear-gradient(90deg, transparent, rgba(0, 213, 255, 0.58), transparent);
      }

      .challenge-tabs {
        display: flex;
        flex-wrap: wrap;
        gap: 9px;
        margin-bottom: 30px;
      }

      .challenge-tab {
        padding: 10px 14px;
        border: 1px solid var(--line);
        border-radius: 999px;
        color: #cbd5e1;
        background: rgba(255, 255, 255, 0.025);
        cursor: pointer;
        font-size: 0.82rem;
        font-weight: 720;
        transition:
          color 0.3s ease,
          border-color 0.3s ease,
          background-color 0.3s ease,
          transform 0.3s var(--ease-out),
          box-shadow 0.3s ease;
      }

      .challenge-tab[aria-selected="true"] {
        color: var(--white);
        border-color: rgba(0, 213, 255, 0.42);
        background: linear-gradient(105deg, rgba(22, 139, 255, 0.24), rgba(98, 70, 255, 0.2));
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.08),
          0 10px 26px rgba(22, 139, 255, 0.12);
      }

      .challenge-panel {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 36px;
        align-items: center;
      }

      .challenge-panel h3 {
        font-size: clamp(1.65rem, 3vw, 2.6rem);
      }

      .challenge-panel p {
        color: var(--muted);
      }

      .flow-mini {
        display: grid;
        gap: 10px;
      }

      .flow-step {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
        padding: 15px 17px;
        border: 1px solid var(--line);
        border-radius: 14px;
        color: #dbeafe;
        background: rgba(255, 255, 255, 0.025);
        font-size: 0.83rem;
        font-weight: 700;
        transition:
          transform 0.35s var(--ease-out),
          border-color 0.35s ease,
          background-color 0.35s ease;
      }

      .flow-step span:last-child {
        color: var(--cyan);
      }

      /* ================================================================
         6. Process, benefits and company-size applications
         ================================================================ */
      .timeline {
        position: relative;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
      }

      .timeline-card {
        position: relative;
        min-height: 230px;
        padding: 26px;
        border: 1px solid #d9e1eb;
        border-radius: var(--radius-lg);
        background: var(--white);
        box-shadow:
          0 14px 38px rgba(7, 17, 31, 0.045),
          inset 0 1px 0 rgba(255, 255, 255, 0.92);
      }

      .timeline-card p {
        margin-bottom: 0;
        color: #607084;
      }

      .timeline-index {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 44px;
      }

      .timeline-index strong {
        color: #0869d3;
        font-size: 0.77rem;
        letter-spacing: 0.12em;
      }

      .timeline-index span {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--cyan);
        box-shadow: 0 0 14px rgba(0, 213, 255, 0.6);
      }

      .quote-band {
        margin-top: 18px;
        padding: 28px;
        border-radius: var(--radius-lg);
        color: var(--white);
        background: linear-gradient(110deg, #0759b3, #4132c9);
        background-size: 150% auto;
        box-shadow: 0 22px 60px rgba(43, 53, 186, 0.2);
        text-align: center;
        font-size: clamp(1.28rem, 2.6vw, 2rem);
        font-weight: 750;
        letter-spacing: -0.025em;
      }

      .comparison {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        gap: 24px;
        align-items: stretch;
        margin-bottom: 22px;
      }

      .compare-card {
        padding: 30px;
        border: 1px solid var(--line);
        border-radius: var(--radius-xl);
        background: rgba(10, 25, 48, 0.54);
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.035),
          0 18px 52px rgba(0, 0, 0, 0.12);
      }

      .compare-card.after {
        border-color: rgba(0, 213, 255, 0.3);
        background: linear-gradient(145deg, rgba(22, 139, 255, 0.13), rgba(98, 70, 255, 0.08));
      }

      .compare-card h3 {
        margin-bottom: 26px;
        font-size: 1.5rem;
      }

      .compare-list {
        display: grid;
        gap: 11px;
        margin: 0;
        padding: 0;
        list-style: none;
      }

      .compare-list li {
        padding-bottom: 11px;
        border-bottom: 1px solid var(--line);
        color: #c3cfdf;
      }

      .compare-arrow {
        align-self: center;
        color: var(--cyan);
        font-size: 1.7rem;
        filter: drop-shadow(0 0 9px rgba(0, 213, 255, 0.4));
        animation: arrow-breathe 2.4s ease-in-out infinite;
      }

      .benefit-grid {
        grid-template-columns: repeat(4, 1fr);
        margin-top: 18px;
      }

      .benefit-card {
        min-height: 150px;
        padding: 22px;
        transition:
          transform 0.4s var(--ease-out),
          border-color 0.4s ease,
          box-shadow 0.4s ease;
      }

      .benefit-card strong {
        display: block;
        margin-bottom: 8px;
        color: var(--white);
      }

      .disclaimer {
        margin-top: 26px;
        padding: 18px 20px;
        border-left: 3px solid var(--cyan);
        color: #aebdd0;
        background: rgba(0, 213, 255, 0.045);
        font-size: 0.85rem;
      }

      .size-grid {
        grid-template-columns: repeat(3, 1fr);
      }

      .size-card {
        padding: 30px;
        transition:
          transform 0.4s var(--ease-out),
          border-color 0.4s ease,
          box-shadow 0.4s ease;
      }

      .size-card.featured {
        border-color: rgba(0, 213, 255, 0.34);
        background:
          radial-gradient(circle at 80% 10%, rgba(22, 139, 255, 0.14), transparent 12rem),
          linear-gradient(145deg, rgba(10, 25, 48, 0.9), rgba(7, 17, 31, 0.72));
      }

      .size-card ul {
        display: grid;
        gap: 10px;
        margin: 24px 0 0;
        padding: 0;
        list-style: none;
      }

      .size-card li {
        position: relative;
        padding-left: 21px;
        color: #b5c2d4;
        font-size: 0.89rem;
      }

      .size-card li::before {
        content: "";
        position: absolute;
        top: 0.62em;
        left: 0;
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--cyan);
      }

      /* ================================================================
         7. Sectors, founders, FAQ and contact
         ================================================================ */
      .sector-cloud {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
      }

      .sector {
        padding: 12px 17px;
        border: 1px solid #d7e0eb;
        border-radius: 999px;
        color: #3d5169;
        background: var(--white);
        font-size: 0.87rem;
        font-weight: 700;
        box-shadow: 0 8px 24px rgba(7, 17, 31, 0.04);
        transition:
          color 0.32s ease,
          border-color 0.32s ease,
          box-shadow 0.32s ease,
          transform 0.32s var(--ease-out);
      }

      .mission-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 18px;
      }

      .mission-card {
        min-height: 300px;
        padding: 38px;
        border: 1px solid var(--line);
        border-radius: var(--radius-xl);
        background: linear-gradient(145deg, rgba(10, 25, 48, 0.75), rgba(7, 17, 31, 0.52));
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.04),
          0 20px 60px rgba(0, 0, 0, 0.12);
        transition:
          transform 0.4s var(--ease-out),
          border-color 0.4s ease,
          box-shadow 0.4s ease;
      }

      .mission-card p {
        color: #c0ccdc;
        font-size: clamp(1.08rem, 1.7vw, 1.28rem);
      }

      .founder-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .founder-card {
        display: grid;
        grid-template-columns: auto 1fr;
        gap: 24px;
        padding: 30px;
        transition:
          transform 0.4s var(--ease-out),
          border-color 0.4s ease,
          box-shadow 0.4s ease;
      }

      .founder-mark {
        display: grid;
        width: 74px;
        height: 74px;
        place-items: center;
        border: 1px solid rgba(0, 213, 255, 0.28);
        border-radius: 22px;
        color: var(--white);
        background: linear-gradient(145deg, rgba(22, 139, 255, 0.22), rgba(98, 70, 255, 0.18));
        font-size: 1.2rem;
        font-weight: 850;
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.08),
          0 16px 38px rgba(22, 139, 255, 0.12);
        transition:
          transform 0.4s var(--ease-out),
          box-shadow 0.4s ease;
      }

      .founder-role {
        display: inline-block;
        margin-bottom: 14px;
        color: var(--cyan);
        font-size: 0.75rem;
        font-weight: 820;
        letter-spacing: 0.11em;
        text-transform: uppercase;
      }

      .university-note {
        margin-top: 18px;
        padding: 26px;
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        color: #b8c5d5;
        background: rgba(255, 255, 255, 0.025);
      }

      .faq-list {
        display: grid;
        gap: 12px;
      }

      details {
        border: 1px solid #d8e0ea;
        border-radius: 16px;
        background: var(--white);
        box-shadow: 0 10px 28px rgba(7, 17, 31, 0.035);
        overflow: hidden;
        transition:
          border-color 0.32s ease,
          box-shadow 0.32s ease,
          transform 0.32s var(--ease-out);
      }

      summary {
        position: relative;
        padding: 22px 58px 22px 22px;
        cursor: pointer;
        font-weight: 760;
        list-style: none;
      }

      summary::-webkit-details-marker {
        display: none;
      }

      summary::after {
        content: "+";
        position: absolute;
        top: 50%;
        right: 22px;
        display: grid;
        width: 28px;
        height: 28px;
        place-items: center;
        border-radius: 50%;
        color: #0759b3;
        background: rgba(22, 139, 255, 0.08);
        transform: translateY(-50%);
        transition:
          color 0.3s ease,
          background-color 0.3s ease,
          transform 0.35s var(--ease-out);
      }

      details[open] summary::after {
        content: "−";
        color: #ffffff;
        background: linear-gradient(135deg, var(--blue-action), var(--violet));
        transform: translateY(-50%) rotate(180deg);
      }

      details p {
        margin: 0;
        padding: 0 22px 22px;
        color: #5b6c80;
      }

      .cta-band {
        position: relative;
        padding: 64px;
        border: 1px solid rgba(0, 213, 255, 0.22);
        border-radius: 34px;
        background:
          radial-gradient(circle at 85% 20%, rgba(98, 70, 255, 0.3), transparent 18rem),
          linear-gradient(120deg, rgba(11, 60, 117, 0.86), rgba(34, 30, 102, 0.86));
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.08),
          0 32px 90px rgba(0, 0, 0, 0.24),
          0 0 70px rgba(22, 139, 255, 0.08);
        overflow: hidden;
      }

      .cta-band::before {
        content: "";
        position: absolute;
        top: -55%;
        right: -8%;
        width: 390px;
        aspect-ratio: 1;
        pointer-events: none;
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 50%;
        box-shadow:
          0 0 0 46px rgba(0, 213, 255, 0.025),
          0 0 0 92px rgba(98, 70, 255, 0.025);
        animation: cta-orbit 14s linear infinite;
      }

      .cta-band > * {
        position: relative;
        z-index: 1;
      }

      .cta-band h2 {
        max-width: 780px;
      }

      .cta-band p {
        max-width: 680px;
        color: #d4deec;
        font-size: 1.1rem;
      }

      .contact-grid {
        display: grid;
        grid-template-columns: 0.78fr 1.22fr;
        gap: 52px;
        align-items: start;
      }

      .contact-direct {
        margin-top: 32px;
        padding: 22px;
        border: 1px solid var(--line);
        border-radius: var(--radius-lg);
        background: rgba(255, 255, 255, 0.025);
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.025);
        transition:
          border-color 0.35s ease,
          background-color 0.35s ease,
          transform 0.35s var(--ease-out);
      }

      .contact-direct small {
        display: block;
        margin-bottom: 7px;
        color: var(--muted);
      }

      .contact-direct strong {
        font-size: 1.2rem;
      }

      .contact-form {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
        padding: 30px;
        border: 1px solid var(--line);
        border-radius: var(--radius-xl);
        background: rgba(10, 25, 48, 0.64);
        backdrop-filter: blur(18px);
        box-shadow:
          inset 0 1px 0 rgba(255, 255, 255, 0.04),
          0 28px 86px rgba(0, 0, 0, 0.26);
      }

      .field {
        display: grid;
        gap: 8px;
      }

      .field.full {
        grid-column: 1 / -1;
      }

      label {
        color: #d2ddeb;
        font-size: 0.82rem;
        font-weight: 720;
      }

      input,
      select,
      textarea {
        width: 100%;
        border: 1px solid var(--line);
        border-radius: 12px;
        color: var(--white);
        background: rgba(255, 255, 255, 0.035);
        transition:
          border-color 0.3s ease,
          box-shadow 0.3s ease,
          background-color 0.3s ease,
          transform 0.3s var(--ease-out);
      }

      input:focus,
      select:focus,
      textarea:focus {
        border-color: rgba(0, 213, 255, 0.56);
        background: rgba(255, 255, 255, 0.05);
        box-shadow:
          0 0 0 4px rgba(0, 213, 255, 0.08),
          0 12px 28px rgba(0, 0, 0, 0.1);
      }

      input,
      select {
        height: 48px;
        padding: 0 14px;
      }

      textarea {
        min-height: 118px;
        padding: 13px 14px;
        resize: vertical;
      }

      select option {
        color: var(--navy-900);
      }

      input::placeholder,
      textarea::placeholder {
        color: #718197;
      }

      .contact-form .btn {
        width: fit-content;
        margin-top: 4px;
      }

      .required-mark {
        color: var(--cyan);
      }

      .field-error {
        min-height: 1.05rem;
        color: #ff9aaa;
        font-size: 0.73rem;
        line-height: 1.35;
      }

      footer {
        padding: 38px 0 30px;
        border-top: 1px solid var(--line);
        background: #040911;
      }

      .footer-grid {
        display: grid;
        grid-template-columns: 1.2fr 0.7fr 0.7fr;
        gap: 42px;
      }

      .footer-brand img {
        width: 190px;
        height: 55px;
        object-fit: cover;
        border-radius: 8px;
      }

      .footer-brand p,
      .footer-col a,
      .footer-bottom {
        color: var(--muted);
        font-size: 0.85rem;
      }

      .footer-brand p {
        max-width: 340px;
        margin-top: 18px;
      }

      .footer-col {
        display: grid;
        align-content: start;
        gap: 9px;
      }

      .footer-col strong {
        margin-bottom: 5px;
      }

      .footer-col a:hover {
        color: var(--cyan);
      }

      .footer-col a {
        display: inline-flex;
        min-height: 28px;
        align-items: center;
      }

      .footer-bottom {
        display: flex;
        justify-content: space-between;
        gap: 20px;
        margin-top: 34px;
        padding-top: 20px;
        border-top: 1px solid var(--line);
      }

      .whatsapp-float {
        position: fixed;
        z-index: 950;
        right: 20px;
        bottom: 20px;
        display: flex;
        min-height: 54px;
        align-items: center;
        gap: 10px;
        padding: 0 18px;
        border: 1px solid rgba(117, 246, 199, 0.25);
        border-radius: 999px;
        color: #e9fff7;
        background: linear-gradient(135deg, #078451, #0a9b61);
        box-shadow:
          0 17px 44px rgba(0, 0, 0, 0.34),
          inset 0 1px 0 rgba(255, 255, 255, 0.12);
        font-size: 0.86rem;
        font-weight: 800;
        transition:
          transform 0.34s var(--ease-out),
          box-shadow 0.34s ease,
          background 0.34s ease;
      }

      .whatsapp-float span:first-child {
        font-size: 1.2rem;
      }

      /* ================================================================
         8. Interaction states — preserve the existing visual system
         ================================================================ */
      .problem-card,
      .solution-card,
      .compare-card,
      .timeline-card {
        cursor: pointer;
        transition:
          transform 0.4s var(--ease-out),
          border-color 0.34s ease,
          background-color 0.34s ease,
          box-shadow 0.4s var(--ease-out),
          opacity 0.34s ease,
          filter 0.34s ease;
      }

      .problem-card.is-selected,
      .solution-card.is-selected,
      .solution-card.is-recommended,
      .compare-card.is-selected {
        border-color: rgba(0, 213, 255, 0.52);
        box-shadow:
          0 0 0 1px rgba(0, 213, 255, 0.12),
          0 24px 58px rgba(0, 125, 255, 0.16);
      }

      .problem-card.is-selected::before,
      .solution-card.is-selected::before {
        opacity: 1;
        transform: scaleX(1);
      }

      .problem-card.is-selected .problem-number {
        transform: scale(1.04);
        box-shadow: 0 12px 30px rgba(22, 139, 255, 0.18);
      }

      .solution-card.is-selected .solution-icon {
        transform: translateY(-2px) scale(1.04);
        box-shadow: 0 16px 34px rgba(0, 213, 255, 0.14);
      }

      .solution-card.is-recommended:not(.is-selected) {
        background: linear-gradient(145deg, rgba(22, 139, 255, 0.12), rgba(98, 70, 255, 0.08));
      }

      .compare-card.is-muted {
        opacity: 0.5;
        filter: saturate(0.72);
      }

      .timeline-card.is-current {
        border-color: rgba(22, 139, 255, 0.42);
        box-shadow:
          0 0 0 1px rgba(22, 139, 255, 0.08),
          0 22px 54px rgba(22, 139, 255, 0.13);
      }

      details[open] {
        border-color: rgba(22, 139, 255, 0.28);
        box-shadow:
          0 18px 42px rgba(7, 17, 31, 0.08),
          0 0 0 1px rgba(22, 139, 255, 0.04);
      }

      details[open] p {
        animation: faq-content-in 0.34s var(--ease-out) both;
      }

      .js .reveal-item {
        opacity: 0;
        transform: translateY(18px) scale(0.992);
      }

      .js .reveal-item.is-revealed {
        opacity: 1;
        transform: translateY(0) scale(1);
        transition:
          opacity 0.72s ease var(--reveal-delay, 0ms),
          transform 0.72s var(--ease-out) var(--reveal-delay, 0ms);
      }

      .js .timeline-card.reveal-item.is-revealed.is-current {
        transform: translateY(-4px) scale(1);
      }

      input[aria-invalid="true"],
      select[aria-invalid="true"],
      textarea[aria-invalid="true"] {
        border-color: #ff7a90;
        box-shadow: 0 0 0 4px rgba(255, 122, 144, 0.08);
      }

      .whatsapp-float.is-attention {
        animation: whatsapp-attention 1.5s ease;
      }

      .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;
      }

      @keyframes faq-content-in {
        from {
          opacity: 0;
          transform: translateY(-5px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }

      @keyframes whatsapp-attention {
        0%,
        100% {
          transform: translateY(0) scale(1);
        }
        45% {
          transform: translateY(-4px) scale(1.035);
          box-shadow: 0 18px 44px rgba(11, 143, 90, 0.42);
        }
      }

      @keyframes gradient-drift {
        from {
          background-position: 0% 50%;
        }
        to {
          background-position: 100% 50%;
        }
      }

      @keyframes ambient-drift {
        from {
          opacity: 0.68;
          transform: translate3d(0, 0, 0) scale(0.96);
        }
        to {
          opacity: 1;
          transform: translate3d(6%, 3%, 0) scale(1.05);
        }
      }

      @keyframes hero-enter {
        from {
          opacity: 0;
          transform: translateY(18px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }

      @keyframes orbit-ring {
        from {
          transform: translate(-50%, -50%) rotate(0deg);
        }
        to {
          transform: translate(-50%, -50%) rotate(360deg);
        }
      }

      @keyframes orbit-ring-reverse {
        from {
          transform: translate(-50%, -50%) rotate(360deg);
        }
        to {
          transform: translate(-50%, -50%) rotate(0deg);
        }
      }

      @keyframes core-breathe {
        0%,
        100% {
          transform: translate(-50%, -50%) scale(1);
          box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.12),
            0 0 34px rgba(0, 213, 255, 0.15);
        }
        50% {
          transform: translate(-50%, -50%) scale(1.025);
          box-shadow:
            inset 0 1px 0 rgba(255, 255, 255, 0.14),
            0 0 52px rgba(0, 213, 255, 0.24);
        }
      }

      @keyframes node-float {
        0%,
        100% {
          transform: translateY(0);
        }
        50% {
          transform: translateY(-6px);
        }
      }

      @keyframes signal-pulse {
        0%,
        100% {
          opacity: 0.65;
          transform: scale(0.88);
        }
        50% {
          opacity: 1;
          transform: scale(1.08);
        }
      }

      @keyframes arrow-breathe {
        0%,
        100% {
          opacity: 0.66;
          transform: translateX(-2px);
        }
        50% {
          opacity: 1;
          transform: translateX(3px);
        }
      }

      @keyframes cta-orbit {
        from {
          transform: rotate(0deg) scale(0.96);
        }
        to {
          transform: rotate(360deg) scale(1.04);
        }
      }

      @media (hover: hover) and (pointer: fine) {
        .btn:hover {
          transform: translateY(-3px) scale(1.008);
        }

        .btn:hover::before {
          transform: translateX(125%);
        }

        .btn:hover span {
          transform: translate(2px, -1px);
        }

        .brand:hover img {
          filter: brightness(1.08) drop-shadow(0 0 14px rgba(0, 213, 255, 0.12));
          transform: scale(1.025);
        }

        .nav-links a:not(.btn):hover::after {
          transform: scaleX(1);
          transform-origin: left;
        }

        .nav-toggle:hover {
          border-color: rgba(0, 213, 255, 0.34);
          background: rgba(0, 213, 255, 0.07);
        }

        .pillar-card:hover,
        .benefit-card:hover,
        .size-card:hover,
        .sector-card:hover,
        .mission-card:hover,
        .founder-card:hover,
        .contact-direct:hover,
        details:hover {
          border-color: rgba(22, 139, 255, 0.28);
          box-shadow: var(--shadow-lift);
          transform: translateY(-4px);
        }

        .founder-card:hover .founder-mark {
          transform: translateY(-2px) rotate(-2deg) scale(1.04);
        }

        .problem-card:hover,
        .solution-card:hover,
        .compare-card:hover,
        .timeline-card:hover {
          transform: translateY(-5px);
          border-color: rgba(0, 213, 255, 0.38);
          box-shadow: var(--shadow-lift);
        }

        .problem-card:hover::before,
        .solution-card:hover::before {
          opacity: 1;
          transform: scaleX(1);
        }

        .problem-card:hover .problem-number,
        .solution-card:hover .solution-icon {
          transform: translateY(-2px) scale(1.04);
        }

        .flow-step:hover {
          border-color: rgba(0, 213, 255, 0.3);
          background: rgba(0, 213, 255, 0.045);
          transform: translateX(4px);
        }

        .tag:hover {
          border-color: rgba(0, 213, 255, 0.3);
          color: #eafcff;
          background: rgba(0, 213, 255, 0.07);
          transform: translateY(-2px);
        }

        .map-node:hover {
          border-color: rgba(0, 213, 255, 0.48);
          box-shadow:
            0 18px 42px rgba(0, 0, 0, 0.26),
            0 0 24px rgba(0, 213, 255, 0.08);
        }

        .whatsapp-float:hover {
          background: linear-gradient(135deg, #07965b, #0cb36e);
          box-shadow:
            0 22px 50px rgba(0, 0, 0, 0.38),
            0 0 0 5px rgba(10, 155, 97, 0.08);
          transform: translateY(-4px) scale(1.015);
        }

        .js .problem-card.reveal-item.is-revealed:hover,
        .js .solution-card.reveal-item.is-revealed:hover,
        .js .compare-card.reveal-item.is-revealed:hover,
        .js .timeline-card.reveal-item.is-revealed:hover {
          transform: translateY(-5px) scale(1);
        }
      }

      /* ================================================================
         9. Responsive behavior
         ================================================================ */
      @media (max-width: 1060px) {
        .nav-toggle {
          display: block;
        }

        .nav-links {
          position: absolute;
          top: calc(100% + 1px);
          right: 20px;
          left: 20px;
          display: flex;
          visibility: hidden;
          align-items: stretch;
          gap: 4px;
          padding: 16px;
          border: 1px solid var(--line);
          border-radius: 18px;
          opacity: 0;
          background: rgba(5, 11, 20, 0.94);
          backdrop-filter: blur(22px) saturate(140%);
          box-shadow:
            0 28px 76px rgba(0, 0, 0, 0.4),
            inset 0 1px 0 rgba(255, 255, 255, 0.045);
          flex-direction: column;
          pointer-events: none;
          transform: translateY(-10px) scale(0.985);
          transform-origin: top center;
          transition:
            opacity 0.28s ease,
            visibility 0.28s ease,
            transform 0.38s var(--ease-out);
        }

        .nav-links.open {
          visibility: visible;
          opacity: 1;
          pointer-events: auto;
          transform: translateY(0) scale(1);
        }

        .nav-links a {
          padding: 10px 12px;
        }

        .nav-links .btn {
          margin-top: 6px;
        }

        .hero-layout {
          grid-template-columns: 1fr;
          gap: 54px;
        }

        .system-map {
          width: min(100%, 720px);
          min-height: 470px;
          margin-inline: auto;
        }

        .intro-grid {
          grid-template-columns: 1fr;
          gap: 30px;
        }

        .benefit-grid {
          grid-template-columns: repeat(2, 1fr);
        }
      }

      @media (max-width: 780px) {
        .container {
          width: min(calc(100% - 28px), var(--max));
        }

        .section {
          padding: 88px 0;
        }

        .section-header {
          margin-bottom: 42px;
        }

        .hero {
          padding-top: 126px;
        }

        .brand img {
          width: 154px;
          height: 44px;
        }

        .pillar-grid,
        .problem-grid,
        .solution-grid,
        .timeline,
        .size-grid,
        .mission-grid,
        .founder-grid,
        .footer-grid {
          grid-template-columns: 1fr;
        }

        .challenge-panel,
        .contact-grid {
          grid-template-columns: 1fr;
        }

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

        .compare-arrow {
          justify-self: center;
          animation: none;
          transform: rotate(90deg);
        }

        .challenge-tabs {
          flex-wrap: nowrap;
          overflow-x: auto;
          padding-bottom: 4px;
          scroll-snap-type: x proximity;
          scrollbar-width: none;
        }

        .challenge-tabs::-webkit-scrollbar {
          display: none;
        }

        .challenge-tab {
          flex: 0 0 auto;
          scroll-snap-align: start;
        }

        .cta-band {
          padding: 38px 26px;
        }

        .contact-form {
          grid-template-columns: 1fr;
          padding: 22px;
        }

        .field.full {
          grid-column: auto;
        }

        .contact-form .btn {
          width: 100%;
        }

        .footer-bottom {
          flex-direction: column;
        }
      }

      @media (max-width: 520px) {
        h1 {
          font-size: clamp(2.7rem, 14vw, 4rem);
        }

        .hero-layout {
          gap: 38px;
        }

        .hero-actions .btn {
          width: 100%;
        }

        .system-map {
          min-height: 420px;
          border-radius: 24px;
        }

        .map-core {
          width: 112px;
          height: 112px;
        }

        .map-node {
          min-width: 104px;
          padding: 10px;
          font-size: 0.66rem;
        }

        .node-one {
          top: 44px;
          left: 16px;
        }

        .node-two {
          top: 88px;
          right: 14px;
        }

        .node-three {
          right: 16px;
          bottom: 72px;
        }

        .node-four {
          bottom: 46px;
          left: 16px;
        }

        .solution-card,
        .founder-card {
          grid-template-columns: 1fr;
        }

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

        .challenge-shell {
          padding: 22px;
          border-radius: 22px;
        }

        .cta-band {
          border-radius: 24px;
        }

        .whatsapp-float {
          right: 16px;
          bottom: 16px;
          width: 54px;
          padding: 0;
          justify-content: center;
        }

        .whatsapp-float span:last-child {
          display: none;
        }
      }

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

        *,
        *::before,
        *::after {
          scroll-behavior: auto !important;
          transition-duration: 0.01ms !important;
          animation-duration: 0.01ms !important;
          animation-iteration-count: 1 !important;
        }

        .js .reveal-item {
          opacity: 1;
          transform: none;
        }
      }