:root {
        --bg: #071a2d;
        --bg2: #0b2440;
        --card: #102846;
        --card2: #152f52;
        --text: #f7fbff;
        --muted: #aebbd0;
        --blue: #38b9ff;
        --blue2: #4076ff;
        --green: #23d187;
        --purple: #9b5cff;
        --stroke: rgba(255, 255, 255, 0.12);
        --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
        --radius: 28px;
      }
      * {
        box-sizing: border-box;
      }
      html {
        scroll-behavior: smooth;
        overflow-x: hidden;
      }
      body {
        margin: 0;
        font-family:
          Inter,
          system-ui,
          -apple-system,
          BlinkMacSystemFont,
          "Segoe UI",
          Arial,
          sans-serif;
        background: radial-gradient(
          circle at 20% 0%,
          #102d50 0,
          #071a2d 42%,
          #061525 100%
        );
        color: var(--text);
        line-height: 1.45;
        overflow-x: hidden;
      }
      a {
        color: inherit;
        text-decoration: none;
      }
      img {
        max-width: 100%;
        display: block;
      }
      .container {
        width: min(1140px, calc(100% - 32px));
        margin: 0 auto;
      }
      .nav {
        position: sticky;
        top: 0;
        z-index: 20;
        background: transparent;
        backdrop-filter: none;
        border-bottom: none;
      }
      .nav-inner {
        height: 72px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
      }
      .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 900;
        font-size: 22px;
      }
      .nav-lang {
        border: 1px solid rgba(56, 185, 255, 0.3);
        background: rgba(7, 26, 45, 0.62);
        color: #d7f2ff;
        border-radius: 12px;
        padding: 8px 12px;
        font-weight: 700;
        font-size: 14px;
        outline: none;
      }
      .logo-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
        background: linear-gradient(135deg, var(--blue), var(--blue2));
        display: grid;
        place-items: center;
        box-shadow: 0 10px 30px rgba(56, 185, 255, 0.32);
      }
      .nav .store-badge img {
        height: 30px;
        width: auto;
      }
      .store-buttons {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
      }
      .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        border-radius: 999px;
        padding: 14px 20px;
        font-weight: 900;
        border: 1px solid var(--stroke);
        transition:
          0.2s transform,
          0.2s opacity;
        white-space: nowrap;
      }
      .btn:hover {
        transform: translateY(-2px);
      }
      .btn-primary {
        background: linear-gradient(135deg, var(--blue), #2f7dff);
        color: #fff;
        box-shadow: 0 16px 34px rgba(56, 185, 255, 0.26);
      }
      .btn-ghost {
        background: rgba(255, 255, 255, 0.06);
        color: #fff;
      }
      .hero {
        padding: 74px 0 54px;
        position: relative;
      }
      .hero:before {
        content: "";
        position: absolute;
        inset: -120px -80px auto auto;
        width: 520px;
        height: 520px;
        border-radius: 50%;
        background: radial-gradient(
          circle,
          rgba(56, 185, 255, 0.22),
          transparent 60%
        );
        pointer-events: none;
      }
      .hero-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 54px;
        align-items: center;
        position: relative;
      }
      .badge {
        display: inline-flex;
        gap: 8px;
        align-items: center;
        border: 1px solid rgba(56, 185, 255, 0.35);
        background: rgba(56, 185, 255, 0.1);
        color: #cbeeff;
        border-radius: 999px;
        padding: 9px 13px;
        font-weight: 800;
      }
      .hero h1 {
        font-size: clamp(46px, 3.8vw, 84px);
        line-height: 1.3;
        margin: 18px 0 18px;
        text-transform: uppercase;
      }
      .hero p {
        font-size: clamp(19px, 2.2vw, 25px);
        color: #d3e5fb;
        margin: 0 0 28px;
        max-width: 650px;
        font-weight: 100;
      }
      .gradient {
        background: linear-gradient(135deg, #fff, #9bdcff 55%, #77ffbf);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
      }
      .stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
        margin-top: 28px;
      }
      .stat {
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid var(--stroke);
        border-radius: 20px;
        padding: 16px;
      }
      .stat b {
        font-size: 26px;
      }
      .stat span {
        display: block;
        color: var(--muted);
        font-weight: 700;
        font-size: 14px;
      }
      .hero-phones {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 18px;
        align-items: center;
        justify-items: center;
        isolation: isolate;
      }
      .hero-phone {
        border-radius: 42px;
        overflow: hidden;
        border: 7px solid #07101f;
        background: #07101f;
        box-shadow: var(--shadow);
        max-width: 285px;
        width: 100%;
      }
      .hero-phone.big {
        grid-row: span 2;
        transform: rotate(-4deg);
      }
      .hero-phone.small {
        max-width: 245px;
        transform: rotate(5deg);
      }
      .hero-phone.small:last-child {
        transform: rotate(-2deg);
      }
      .section {
        padding: 72px 0;
      }
      section#exercises {
        padding: 0;
      }
      .section h2 {
        font-size: clamp(32px, 4.5vw, 54px);
        line-height: 1.05;
        margin: 0 0 18px;
        letter-spacing: -0.04em;
      }
      .section-lead {
        font-size: 20px;
        color: var(--muted);
        max-width: 790px;
        margin: 0 0 34px;
      }
      .problem-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
      }
      .card {
        background: linear-gradient(
          180deg,
          rgba(255, 255, 255, 0.07),
          rgba(255, 255, 255, 0.035)
        );
        border: 1px solid var(--stroke);
        border-radius: var(--radius);
        padding: 26px;
        box-shadow: 0 14px 50px rgba(0, 0, 0, 0.18);
      }
      .card h3 {
        margin: 8px 0 10px;
        font-size: 24px;
      }
      .card p {
        margin: 0;
        color: var(--muted);
        font-size: 17px;
      }
      .icon {
        width: 48px;
        height: 48px;
        border-radius: 16px;
        background: rgba(56, 185, 255, 0.13);
        display: grid;
        place-items: center;
        font-size: 26px;
      }
      .steps {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
      }
      .step {
        padding: 24px;
        background: var(--card);
        border: 1px solid rgba(56, 185, 255, 0.18);
        border-radius: 24px;
      }
      .step-num {
        width: 34px;
        height: 34px;
        border-radius: 50%;
        background: var(--blue);
        display: grid;
        place-items: center;
        font-weight: 900;
        margin-bottom: 18px;
      }
      .exercise-showcase {
        display: grid;
        gap: 28px;
      }
      .exercise-detail {
        display: grid;
        grid-template-columns: 0.92fr 1.08fr;
        gap: 30px;
        align-items: center;
        background: linear-gradient(
          180deg,
          rgba(255, 255, 255, 0.07),
          rgba(255, 255, 255, 0.035)
        );
        border: 1px solid var(--stroke);
        border-radius: 34px;
        padding: 22px;
      }

      .exercise-detail:nth-child(even) {
        grid-template-columns: 1.08fr 0.92fr;
      }
      .exercise-detail:nth-child(even) .exercise-text {
        order: -1;
      }
      .exercise-shot {
        border-radius: 30px;
        overflow: hidden;
        border: 1px solid rgba(56, 185, 255, 0.22);
        background: #07101f;
        box-shadow: 0 18px 55px rgba(0, 0, 0, 0.28);
        max-width: 340px;
        margin: auto;
      }
      .exercise-text h3 {
        font-size: 34px;
        margin: 0 0 12px;
        text-align: center;
        text-transform: uppercase;
      }
      .exercise-text p {
        color: var(--muted);
        font-size: 18px;
        margin: 0 0 16px;
      }
      .chips {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
      }
      .chip {
        border: 1px solid rgba(56, 185, 255, 0.28);
        background: rgba(56, 185, 255, 0.1);
        border-radius: 999px;
        padding: 8px 12px;
        color: #d7f2ff;
        font-weight: 400;
        font-size: 14px;
      }
      .battle-card {
        position: relative;
        overflow: hidden;
        background:
          radial-gradient(
            circle at 15% 12%,
            rgba(153, 215, 255, 0.42),
            transparent 36%
          ),
          radial-gradient(
            circle at 88% 20%,
            rgba(147, 167, 255, 0.3),
            transparent 33%
          ),
          linear-gradient(145deg, #b9dcfb 0%, #93c5ef 52%, #7db2e0 100%);
        padding-bottom: 0;
        align-items: stretch;
        gap: 22px;
      }
      .feature-card {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
      }
      .feature-card:nth-child(even) {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
      }
      .feature-card > * {
        min-width: 0;
      }
      .feature-card .exercise-text,
      .feature-card .battle-media {
        width: 100%;
      }
      .feature-card .feature-media {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: flex-start;
      }
      .feature-card .device-frame {
        width: 86%;
        max-width: 360px;
        margin-left: auto;
        margin-right: auto;
      }
      .battle-card:before {
        display: none;
      }
      .battle-card > * {
        position: relative;
        z-index: 1;
      }
      .battle-arena {
        position: relative;
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        align-items: center;
        gap: 18px;
        margin: 16px 0 20px;
        overflow: hidden;
      }
      .battle-option {
        min-height: 70px;
        border-radius: 26px;
        display: grid;
        place-items: center;
        text-align: center;
        text-transform: uppercase;
        font-weight: 1000;
        letter-spacing: 0.02em;
        font-size: clamp(18px, 2.2vw, 30px);
        line-height: 1.5;
        background: linear-gradient(
          180deg,
          rgba(15, 48, 82, 0.96),
          rgba(5, 18, 35, 0.96)
        );
        box-shadow:
          inset 0 0 28px rgba(56, 185, 255, 0.12),
          0 0 34px rgba(56, 185, 255, 0.2);
        border: 2px solid rgba(56, 185, 255, 0.82);
        text-shadow: 0 0 16px rgba(56, 185, 255, 0.45);
        padding: 20px 0;
      }
      .battle-option span {
        display: block;
        color: #29bfff;
      }
      .battle-option.past {
        border-color: rgba(116, 104, 255, 0.88);
        box-shadow:
          inset 0 0 28px rgba(116, 104, 255, 0.14),
          0 0 34px rgba(116, 104, 255, 0.24);
      }
      .battle-option.past span {
        color: #857bff;
      }
      .battle-center {
        font-size: clamp(44px, 6vw, 76px);
        font-weight: 1000;
        color: #fff;
        text-shadow:
          0 0 16px #fff,
          0 0 34px #38b9ff,
          0 0 60px #7468ff;
        animation: pulse 1.5s infinite;
        z-index: 2;
      }
      .device-frame {
        border-radius: 30px;
        overflow: hidden;
        border: 5px solid #dadada;
        background: #0a1f39;
        box-shadow:
          0 26px 45px rgba(5, 16, 32, 0.5),
          0 0 0 1px rgba(170, 215, 255, 0.3);
        max-width: 390px;
        margin: 0 auto 0;
        line-height: 0;
      }
      .device-frame img {
        width: 100%;
        height: auto;
      }
      .battle-phone-crop {
        border-radius: 30px 30px 0 0;
        border-bottom: none;
      }

      .battle-label {
        display: block;
        margin: 0 0 8px;
        color: #9bd9ff;
        font-weight: 800;
        letter-spacing: 0.08em;
        font-size: 18px;
      }
      .battle-card .exercise-text p {
        margin: 0 0 14px;
        line-height: 1.62;
        color: #163555;
      }
      .battle-card .exercise-text p:last-of-type {
        margin-bottom: 0;
      }
      .battle-card .chips {
        margin-top: 18px;
        margin-bottom: 14px;
        gap: 12px;
      }
      .speed-card .exercise-text p:last-of-type {
        margin-bottom: 14px;
      }
      .speed-card {
        padding-bottom: 22px;
      }
      .battle-card .chip {
        border: 1px solid rgba(210, 236, 255, 0.52);
        background: linear-gradient(
          160deg,
          rgba(25, 68, 112, 0.96),
          rgba(19, 52, 89, 0.92)
        );
        color: #e8f5ff;
        padding: 9px 14px;
        box-shadow:
          inset 0 0 0 1px rgba(177, 224, 255, 0.18),
          0 7px 18px rgba(5, 16, 32, 0.35);
      }

      .battle-card .exercise-text h3 {
        color: #0e2a46;
      }
      .battle-label {
        color: #245377;
      }
      .battle-card .battle-center {
        color: #123557;
        text-shadow: 0 0 12px rgba(255, 255, 255, 0.6);
      }
      @keyframes shine {
        55%,
        100% {
          transform: translateX(120%);
        }
      }
      @keyframes pulse {
        0%,
        100% {
          transform: scale(1);
        }
        50% {
          transform: scale(1.07);
        }
      }
      .speed-graphic {
        background: linear-gradient(
          135deg,
          rgba(56, 185, 255, 0.14),
          rgba(35, 209, 135, 0.09)
        );
        border: 1px solid rgba(56, 185, 255, 0.25);
        border-radius: 34px;
        padding: 34px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 28px;
        align-items: center;
      }
      .speed-track {
        background: rgba(33, 147, 219, 0.28);
        border: 1px solid rgba(46, 131, 191, 0.45);
        border-radius: 28px;
        padding: 18px;
        max-width: 500px;
      }
      .speed-chart {
        position: relative;
        height: 180px;
        margin-top: 10px;
        padding: 10px 10px 24px 34px;
        border-radius: 18px;
        background: rgba(20, 110, 168, 0.22);
        border: 1px solid rgba(36, 108, 161, 0.42);
      }
      .speed-axis-x,
      .speed-axis-y {
        position: absolute;
        background: rgba(19, 53, 87, 0.7);
      }
      .speed-axis-x {
        left: 34px;
        right: 14px;
        bottom: 24px;
        height: 2px;
      }
      .speed-axis-y {
        left: 34px;
        top: 18px;
        bottom: 24px;
        width: 2px;
      }
      .speed-line {
        position: absolute;
        left: 48px;
        right: 24px;
        top: 30px;
        bottom: 40px;
      }
      .speed-line svg {
        width: 100%;
        height: 100%;
      }
      .speed-label {
        position: absolute;
        font-size: 11px;
        font-weight: 800;
        color: #224d71;
      }
      .speed-label.x {
        bottom: 4px;
      }
      .speed-label.y {
        left: -50px;
        top: 50%;
        transform: translateY(-50%) rotate(-90deg);
        transform-origin: center;
        white-space: nowrap;
        display: inline-block;
      }
      .speed-label.start {
        left: 14%;
        transform: translateX(-50%);
      }
      .speed-label.mid-1 {
        left: 39%;
        transform: translateX(-50%);
      }
      .speed-label.mid-2 {
        left: 62%;
        transform: translateX(-50%);
      }
      .speed-label.end {
        left: 87%;
        transform: translateX(-50%);
      }
      .speed-big {
        font-size: 52px;
        line-height: 1;
        font-weight: 1000;
        color: #ff3c3c;
      }
      .speed-note {
        color: #08263f;
        font-weight: 500;
      }
      .slider {
        display: flex;
        gap: 16px;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        padding: 4px 4px 14px;
        max-width: 720px;
        margin: auto;
      }
      .slider::-webkit-scrollbar {
        height: 8px;
      }
      .slider::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.22);
        border-radius: 999px;
      }
      .slide {
        min-width: min(330px, 86vw);
        scroll-snap-align: center;
        border-radius: 30px;
        overflow: hidden;
        border: 1px solid rgba(56, 185, 255, 0.22);
        background: #07101f;
        box-shadow: 0 18px 55px rgba(0, 0, 0, 0.28);
      }
      .slide-caption {
        text-align: center;
        color: #d7f2ff;
        font-weight: 900;
        margin-top: 8px;
      }
      .audio-slider {
        position: relative;
        width: 86%;
        max-width: 360px;
        margin: 0 auto;
      }
      .audio-slider input {
        display: none;
      }
      .audio-viewport {
        overflow: hidden;
        border-radius: 30px 30px 0 0;
        border: 5px solid #dadada;
        border-bottom: none;
        background: #0a1f39;
        box-shadow:
          0 26px 45px rgba(5, 16, 32, 0.5),
          0 0 0 1px rgba(170, 215, 255, 0.3);
        line-height: 0;
      }
      .audio-track {
        display: flex;
        width: 200%;
        transition: transform 0.35s ease;
      }
      .audio-slide {
        width: 50%;
      }
      .audio-slide .slide {
        min-width: 100%;
        border: none;
        border-radius: 0;
        box-shadow: none;
      }
      .audio-slide .slide-caption {
        display: none;
      }
      .audio-nav {
        position: absolute;
        top: 50%;
        left: 8px;
        right: 8px;
        transform: translateY(-50%);
        display: flex;
        justify-content: space-between;
        pointer-events: none;
      }
      .audio-arrow {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        border: 1px solid rgba(210, 236, 255, 0.52);
        background: rgba(19, 52, 89, 0.92);
        color: #e8f5ff;
        display: grid;
        place-items: center;
        font-size: 22px;
        line-height: 1;
        cursor: pointer;
        pointer-events: auto;
      }
      .audio-card .feature-media {
        align-self: end;
      }
      .speed-card .feature-media {
        align-self: start;
      }
      .audio-arrow {
        display: none;
      }
      #audio-slide-1:checked ~ .audio-viewport .audio-track {
        transform: translateX(0);
      }
      #audio-slide-2:checked ~ .audio-viewport .audio-track {
        transform: translateX(-50%);
      }
      #audio-slide-1:checked ~ .audio-nav .from-1,
      #audio-slide-2:checked ~ .audio-nav .from-2 {
        display: grid;
      }
      .reviews-section {
        overflow: hidden;
      }
      .reviews-strip {
        display: flex;
        gap: 14px;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        padding: 6px 4px 18px;
      }
      .reviews-strip::-webkit-scrollbar {
        height: 8px;
      }
      .reviews-strip::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.22);
        border-radius: 999px;
      }
      .review-img {
        scroll-snap-align: start;
        flex: 0 0 280px;
        background: white;
        border-radius: 18px;
        border: 1px solid rgba(255, 255, 255, 0.18);
        box-shadow: 0 18px 55px rgba(0, 0, 0, 0.25);
        overflow: hidden;
      }
      .review-img img {
        width: 100%;
        height: auto;
      }
      .cta {
        padding: 80px 0 100px;
        text-align: center;
      }
      .cta-box {
        background: linear-gradient(135deg, #12375e, #0c2542);
        border: 1px solid rgba(56, 185, 255, 0.28);
        border-radius: 38px;
        padding: 44px;
        box-shadow: var(--shadow);
      }
      .cta h2 {
        margin: 0 0 14px;
      }
      .footer {
        border-top: 1px solid var(--stroke);
        color: var(--muted);
        padding: 28px 0;
        text-align: center;
      }
      @media (max-width: 940px) {
        .hero-grid,
        .speed-graphic {
          grid-template-columns: 1fr;
        }
        .hero {
          text-align: center;
          padding-top: 46px;
        }
        .hero p {
          text-align: center;
        }
        .hero-actions {
          justify-content: center;
        }
        .hero-phones {
          max-width: 680px;
          margin: 20px auto 0;
        }
        .exercise-detail,
        .exercise-detail:nth-child(even) {
          grid-template-columns: 1fr;
        }
        .exercise-detail:nth-child(even) .exercise-text {
          order: 0;
        }
        .exercise-detail > .exercise-text {
          order: 1;
        }
        .exercise-detail > :not(.exercise-text) {
          order: 2;
        }
        .feature-card .device-frame {
          max-width: 360px;
        }
        .problem-grid,
        .steps {
          grid-template-columns: 1fr 1fr;
        }
      }
      @media (max-width: 620px) {
        .container {
          width: min(100% - 24px, 1140px);
        }
        .nav-inner {
          height: auto;
          padding: 12px 0;
          align-items: flex-start;
        }
        .logo {
          font-size: 20px;
        }
        .store-buttons .btn {
          padding: 10px 12px;
          font-size: 13px;
        }
        .hero h1 {
          font-size: 35px;
          text-align: center;
        }
        .hero p {
          font-size: 20px;
          text-align: center;
        }
        .stats,
        .problem-grid,
        .steps {
          grid-template-columns: 1fr;
        }
        .hero-phones {
          grid-template-columns: 1fr 1fr;
          gap: 12px;
        }
        .hero-phone {
          border-radius: 28px;
          border-width: 5px;
        }
        .hero-phone.big {
          grid-row: auto;
          transform: rotate(-2deg);
          grid-column: 1 / -1;
          max-width: 330px;
        }
        .hero-phone.small {
          max-width: 100%;
          transform: none;
        }
        .section {
          padding: 54px 0;
        }
        .battle-vs {
          flex-direction: column;
        }
        .speed-graphic {
          padding: 22px;
        }
        .speed-row {
          grid-template-columns: 58px 1fr 46px;
          font-size: 14px;
        }
        .speed-big {
          font-size: 42px;
        }
        .exercise-detail {
          padding: 16px;
          border-radius: 28px;
        }
        .exercise-text h3 {
          font-size: 29px;
        }
        .cta-box {
          padding: 30px 18px;
          border-radius: 28px;
        }
        .review-img {
          flex-basis: 255px;
        }
      }

      .app-logo {
        width: 65px;
      }
      .store-badge {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        transition:
          0.2s transform,
          0.2s opacity;
      }
      .store-badge:hover {
        transform: translateY(-2px);
        opacity: 0.92;
      }
      .store-badge img {
        height: 52px;
        width: auto;
      }
      .hero-actions {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
        align-items: center;
      }
      .hero-phones.overlap {
        display: flex;
        align-items: flex-end;
        justify-content: center;
        gap: 0;
        min-height: 510px;
      }
      .hero-phones.overlap .hero-phone {
        width: 31%;
        max-width: 245px;
        margin-left: -42px;
        transition: 0.2s transform;
      }
      .hero-phones.overlap .hero-phone:first-child {
        margin-left: 0;
        transform: rotate(-6deg) translateY(18px);
        z-index: 1;
      }
      .hero-phones.overlap .hero-phone:nth-child(2) {
        transform: rotate(0deg) translateY(-8px);
        z-index: 3;
        max-width: 275px;
        width: 36%;
      }
      .hero-phones.overlap .hero-phone:nth-child(3) {
        transform: rotate(6deg) translateY(18px);
        z-index: 2;
      }
      .problem-visual {
        margin-top: 28px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 28px;
        align-items: center;
      }
      .problem-ad {
        position: relative;
        min-height: 320px;
        border-radius: 30px;
        background: linear-gradient(135deg, #102846, #071a2d);
        border: 1px solid rgba(56, 185, 255, 0.24);
        overflow: hidden;
        padding: 28px;
        display: grid;
        place-items: center;
        text-align: center;
      }
      .problem-ad:before {
        content: "";
        position: absolute;
        width: 280px;
        height: 280px;
        border-radius: 50%;
        background: radial-gradient(
          circle,
          rgba(56, 185, 255, 0.28),
          transparent 65%
        );
        right: -90px;
        top: -80px;
      }
      .problem-ad:after {
        content: "";
        position: absolute;
        width: 220px;
        height: 220px;
        border-radius: 50%;
        background: radial-gradient(
          circle,
          rgba(35, 209, 135, 0.2),
          transparent 65%
        );
        left: -80px;
        bottom: -80px;
      }
      .thought-bubble {
        position: relative;
        z-index: 1;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.14);
        border-radius: 26px;
        padding: 20px;
        box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
      }
      .thought-bubble b {
        display: block;
        font-size: 26px;
        line-height: 1.12;
        margin-bottom: 12px;
      }
      .thought-bubble span {
        color: #cfe3fb;
        font-weight: 800;
      }
      .problem-arrow {
        font-size: 44px;
        font-weight: 1000;
        color: #8bd4ff;
        text-shadow: 0 0 24px rgba(56, 185, 255, 0.7);
        margin: 18px 0;
      }
      .mini-phrase {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        border-radius: 999px;
        padding: 10px 14px;
        background: rgba(35, 209, 135, 0.14);
        border: 1px solid rgba(35, 209, 135, 0.38);
        color: #ddfff1;
        font-weight: 900;
      }
      @media (max-width: 940px) {
        .hero-phones.overlap {
          min-height: auto;
          margin-top: 22px;
        }
        .problem-visual {
          grid-template-columns: 1fr;
        }
        .store-badge img {
          height: 48px;
        }
      }
      @media (max-width: 640px) {
        .hero-phones.overlap {
          min-height: 360px;
        }
        .hero-phones.overlap .hero-phone {
          width: 40%;
          margin-left: -54px;
          border-radius: 26px;
          border-width: 4px;
        }
        .hero-phones.overlap .hero-phone:nth-child(2) {
          width: 48%;
          max-width: 230px;
        }
        .store-badge img {
          height: 46px;
        }
        .problem-ad {
          min-height: 260px;
          padding: 18px;
        }
        .thought-bubble b {
          font-size: 22px;
        }
      }

      .problem-section {
        padding-top: 54px;
      }
      .problem-with-image {
        display: grid;
        grid-template-columns: 0.86fr 1.14fr;
        gap: 34px;
        align-items: center;
        overflow: hidden;
      }
      .problem-copy {
        padding: 28px 0 42px;
      }
      .problem-copy h2 {
        font-size: clamp(32px, 4.2vw, 58px);
        line-height: 1.06;
        margin: 0 0 18px;
        letter-spacing: -0.04em;
      }
      .problem-copy p {
        color: var(--muted);
        font-size: clamp(18px, 2vw, 23px);
        margin: 0;
        max-width: 590px;
      }
      .problem-image-wrap {
        align-self: end;
        justify-self: center;
        width: min(620px, 100%);
      }
      .problem-image-wrap img {
        width: 100%;
        filter: drop-shadow(0 28px 42px rgba(0, 0, 0, 0.35));
      }
      @media (max-width: 940px) {
        .problem-with-image {
          grid-template-columns: 1fr;
          padding: 26px 24px 0;
        }
        .problem-copy {
          padding: 8px 0 8px;
        }
        .problem-image-wrap {
          width: min(560px, 100%);
        }
      }
      @media (max-width: 640px) {
        .problem-with-image {
          padding: 22px 18px 0;
          border-radius: 28px;
        }
        .problem-image-wrap {
          width: 100%;
          margin-left: 0;
          margin-right: 0;
        }
        .problem-copy h2 {
          font-size: 30px;
        }
        .problem-copy p {
          font-size: 18px;
        }
      }

      @media (max-width: 620px) {
        .battle-arena {
          grid-template-columns: 1fr;
          gap: 12px;
          padding: 16px;
        }
        .battle-option {
          min-height: 96px;
        }
        .battle-center {
          font-size: 42px;
        }
        .battle-phone-crop {
          max-width: 330px;
        }
        .feature-card .device-frame {
          max-width: 330px;
        }
        .battle-card .exercise-text {
          padding: 0;
        }
        .battle-card .chips {
          margin-bottom: 10px;
        }
      }