:root {
        --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
        --ink: #17203b;
        --muted: #66728d;
        --soft: #f5f6ff;
        --line: #e5e8f5;
        --purple: #7049f5;
        --purple-2: #8c59ff;
        --purple-3: #4b2eea;
        --success: #23b26d;
        --danger: #e84d57;
        --warning: #ff6a3d;
        --card: rgba(255, 255, 255, 0.86);
        --shadow: 0 24px 70px rgba(75, 46, 234, 0.14);
      }

      * { box-sizing: border-box; }
      html { scroll-behavior: smooth; }
      body {
        margin: 0;
        display: block !important;
        width: 100%;
        min-width: 0;
        min-height: 100vh;
        color: var(--ink);
        font-family: var(--font-main) !important;
        background:
          radial-gradient(circle at 8% 4%, rgba(112, 73, 245, 0.12), transparent 34%),
          radial-gradient(circle at 90% 14%, rgba(140, 89, 255, 0.16), transparent 34%),
          linear-gradient(180deg, #ffffff 0%, #fbfbff 44%, #f8f9ff 100%);
        overflow-x: hidden;
      }

      body::before {
        content: '';
        position: fixed;
        inset: 0;
        pointer-events: none;
        background-image:
          linear-gradient(rgba(112, 73, 245, 0.03) 1px, transparent 1px),
          linear-gradient(90deg, rgba(112, 73, 245, 0.03) 1px, transparent 1px);
        background-size: 28px 28px;
        mask-image: linear-gradient(180deg, transparent, #000 15%, #000 70%, transparent);
        z-index: 0;
      }

      a { color: inherit; }
      button, input { font-family: var(--font-main) !important; }

      .gg-top-shell {
        position: relative;
        width: 100%;
        min-width: 0;
        z-index: 10;
        background: rgba(255, 255, 255, 0.78);
        backdrop-filter: blur(24px) saturate(180%);
        -webkit-backdrop-filter: blur(24px) saturate(180%);
        border-bottom: 1px solid rgba(229, 232, 245, 0.88);
        box-shadow: 0 8px 24px rgba(24, 32, 59, 0.04);
      }

      .ios-statusbar {
        max-width: 820px;
        height: 42px;
        margin: 0 auto;
        padding: 0 24px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        color: #050816;
        font-weight: 900;
        font-size: 18px;
        letter-spacing: -0.03em;
      }

      .ios-icons { display: flex; align-items: center; gap: 10px; }
      .signal { display: inline-flex; align-items: end; gap: 3px; height: 18px; }
      .signal i { display: block; width: 4px; border-radius: 5px; background: #050816; }
      .signal i:nth-child(1) { height: 6px; }
      .signal i:nth-child(2) { height: 9px; }
      .signal i:nth-child(3) { height: 12px; }
      .signal i:nth-child(4) { height: 15px; }
      .wifi { width: 20px; height: 15px; position: relative; }
      .wifi::before,
      .wifi::after {
        content: '';
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        border: 3px solid #050816;
        border-color: #050816 transparent transparent transparent;
        border-radius: 50%;
      }
      .wifi::before { width: 22px; height: 22px; top: 0; }
      .wifi::after { width: 12px; height: 12px; top: 7px; }
      .battery {
        width: 30px;
        height: 16px;
        border: 2px solid #050816;
        border-radius: 4px;
        position: relative;
      }
      .battery::before { content: ''; position: absolute; right: -5px; top: 4px; width: 3px; height: 6px; border-radius: 2px; background: #050816; }
      .battery::after { content: ''; position: absolute; inset: 2px; width: 19px; border-radius: 2px; background: #050816; }

      .gg-nav {
        max-width: 820px;
        margin: 0 auto;
        padding: 18px 24px 22px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
      }

      .brand { display: flex; align-items: center; gap: 16px; min-width: 0; }
      .brand-icon-wrap { position: relative; flex: 0 0 auto; }
      .brand-icon {
        width: 72px;
        height: 72px;
        border-radius: 22px;
        object-fit: contain;
        padding: 6px;
        background: rgba(255, 255, 255, 0.9);
        display: block;
        box-shadow: 0 16px 36px rgba(23, 32, 59, 0.14);
      }
      .online-dot {
        position: absolute;
        right: -2px;
        bottom: -2px;
        width: 15px;
        height: 15px;
        border: 3px solid #fff;
        border-radius: 50%;
        background: var(--success);
        box-shadow: 0 0 0 5px rgba(35, 178, 109, 0.12);
      }
      .brand-name {
        margin: 0;
        font-size: clamp(25px, 5vw, 34px);
        line-height: 1;
        letter-spacing: -0.055em;
        font-weight: 900;
        color: #16213f;
      }
      .brand-online { display: flex; align-items: center; gap: 8px; margin-top: 10px; color: #7a849c; font-size: 16px; font-weight: 800; }
      .brand-online::before { content: ''; width: 12px; height: 12px; border-radius: 99px; background: var(--success); }

      .nav-actions { display: flex; align-items: center; gap: 14px; }
      .telegram-pill {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        min-height: 56px;
        padding: 0 22px;
        border-radius: 15px;
        text-decoration: none;
        color: #fff;
        font-weight: 900;
        font-size: 17px;
        letter-spacing: -0.02em;
        background: linear-gradient(135deg, #643df0 0%, #8c59ff 100%);
        box-shadow: 0 16px 28px rgba(100, 61, 240, 0.28);
      }
      .telegram-pill svg { width: 22px; height: 22px; }
      .menu-button {
        width: 50px;
        height: 50px;
        display: grid;
        place-items: center;
        border: 0;
        color: #36405d;
        background: transparent;
        cursor: pointer;
      }
      .hamburger { width: 28px; height: 22px; display: grid; gap: 5px; }
      .hamburger span { display: block; height: 3px; border-radius: 9px; background: #36405d; }

      #root { position: relative; z-index: 2; width: 100%; min-width: 0; }
      #root > div { background: transparent !important; color: var(--ink) !important; min-height: auto !important; }
      #root header, #root footer { display: none !important; }
      #root main {
        display: block !important;
        padding: 0 18px 34px !important;
        background: transparent !important;
      }
      #root main > div {
        max-width: 820px !important;
        width: 100% !important;
        margin: 0 auto !important;
        padding: 0 !important;
        background: transparent !important;
        border: 0 !important;
        box-shadow: none !important;
        color: var(--ink) !important;
      }
      #root main > div > .gg-hidden-default { display: none !important; }
      #root main div.border-dashed,
      #root main input[type="file"],
      #root main div:has(> input[placeholder*="Mật khẩu P12"]),
      #root main div.mb-6:has(input[placeholder*="Mật khẩu P12"]) {
        position: absolute !important;
        width: 1px !important;
        height: 1px !important;
        padding: 0 !important;
        margin: 0 !important;
        overflow: hidden !important;
        clip: rect(0, 0, 0, 0) !important;
        border: 0 !important;
        opacity: 0 !important;
        pointer-events: none !important;
      }
      #root main > div > button.gg-react-sign-button {
        display: none;
        width: min(100%, 780px) !important;
        margin: 18px auto 30px !important;
        min-height: 66px !important;
        border: 0 !important;
        border-radius: 24px !important;
        color: #fff !important;
        font-weight: 900 !important;
        font-size: 18px !important;
        background: linear-gradient(135deg, #4b2eea 0%, #8c59ff 100%) !important;
        box-shadow: 0 18px 42px rgba(100, 61, 240, 0.30) !important;
      }
      body:not(.tab-activate) #root main > div > button.gg-react-sign-button { display: flex !important; align-items: center; justify-content: center; }

      .gg-landing { width: 100%; }
      .hero {
        position: relative;
        padding: 48px 0 28px;
        display: grid;
        grid-template-columns: 1.08fr 0.92fr;
        align-items: center;
        gap: 28px;
      }
      .hero::after {
        content: '';
        position: absolute;
        right: -70px;
        top: 20px;
        width: 320px;
        height: 320px;
        border-radius: 999px;
        background: radial-gradient(circle, rgba(140, 89, 255, 0.14), transparent 62%);
        z-index: -1;
      }
      .hero-title {
        margin: 0;
        font-size: clamp(31px, 7vw, 46px);
        line-height: 1.15;
        letter-spacing: -0.055em;
        font-weight: 900;
        color: #18213d;
        text-transform: uppercase;
      }
      .hero-title .accent { color: var(--purple); }
      .hero-subtitle {
        margin: 20px 0 0;
        color: #59647d;
        font-size: clamp(17px, 3vw, 21px);
        line-height: 1.65;
        font-weight: 600;
      }
      .feature-row {
        margin-top: 42px;
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 20px;
      }
      .mini-feature { display: flex; align-items: center; gap: 12px; min-width: 0; }
      .mini-icon {
        width: 56px;
        height: 56px;
        flex: 0 0 auto;
        display: grid;
        place-items: center;
        border-radius: 50%;
        color: var(--purple);
        background: #f0ecff;
        box-shadow: inset 0 0 0 1px rgba(112, 73, 245, 0.08);
      }
      .mini-icon svg { width: 26px; height: 26px; }
      .mini-feature b { display: block; color: #17203b; font-size: 14px; line-height: 1.35; font-weight: 900; }

      .cert-art { position: relative; min-height: 280px; display: grid; place-items: center; }
      .cert-reference-art { position: relative; z-index: 2; width: min(100%, 350px); height: auto; display: block; mix-blend-mode: multiply; }
      .cert-art > :not(.cert-reference-art) { display: none !important; }
      .orbital {
        position: absolute;
        width: 312px;
        height: 150px;
        border: 1px solid rgba(112, 73, 245, 0.10);
        border-radius: 50%;
        transform: rotate(-15deg);
      }
      .cert-card {
        position: relative;
        width: 172px;
        height: 236px;
        padding: 26px 20px;
        border-radius: 22px;
        background: linear-gradient(160deg, #ffffff 0%, #f6f1ff 100%);
        border: 10px solid rgba(140, 89, 255, 0.62);
        box-shadow: 0 28px 60px rgba(100, 61, 240, 0.22);
        transform: rotate(7deg);
      }
      .cert-card::after { content: ''; position: absolute; inset: -10px; border-radius: 22px; border: 1px solid rgba(255, 255, 255, 0.9); pointer-events: none; }
      .cert-title { color: #8b60ff; font-weight: 900; text-align: center; font-size: 20px; line-height: 1.05; transform: rotate(5deg); }
      .cert-lines { margin-top: 30px; display: grid; gap: 9px; }
      .cert-lines i { height: 6px; border-radius: 99px; background: linear-gradient(90deg, #c8b8ff, #b79cfb); }
      .cert-lines i:nth-child(2) { width: 88%; }
      .cert-lines i:nth-child(3) { width: 72%; }
      .medal {
        position: absolute;
        right: -23px;
        bottom: 16px;
        width: 68px;
        height: 68px;
        border-radius: 50%;
        display: grid;
        place-items: center;
        color: #fff;
        background: linear-gradient(135deg, #7049f5, #9b6dff);
        border: 8px solid rgba(122, 82, 255, 0.24);
        box-shadow: 0 16px 34px rgba(100, 61, 240, 0.32);
      }
      .medal::before,
      .medal::after { content: ''; position: absolute; top: 54px; width: 18px; height: 44px; background: #8d64ff; clip-path: polygon(0 0, 100% 0, 70% 100%, 50% 78%, 28% 100%); }
      .medal::before { left: 15px; transform: rotate(10deg); }
      .medal::after { right: 13px; transform: rotate(-14deg); }
      .medal svg { position: relative; z-index: 2; width: 30px; height: 30px; }
      .floating-lock, .floating-dot {
        position: absolute;
        color: var(--purple);
        background: rgba(255, 255, 255, 0.82);
        border: 1px solid rgba(112, 73, 245, 0.12);
        box-shadow: 0 12px 32px rgba(100, 61, 240, 0.12);
      }
      .floating-lock { left: 22px; top: 128px; width: 50px; height: 50px; border-radius: 18px; display: grid; place-items: center; }
      .floating-lock svg { width: 28px; height: 28px; }
      .floating-dot { width: 10px; height: 10px; border-radius: 999px; right: 20px; top: 58px; }
      .floating-dot.d2 { width: 8px; height: 8px; right: 76px; top: 180px; background: #d7c7ff; }
      .floating-dot.d3 { width: 7px; height: 7px; left: 70px; top: 38px; background: #d7c7ff; }

      .hero-cta {
        width: 100%;
        min-height: 98px;
        margin: 4px 0 24px;
        padding: 18px 26px;
        border: 0;
        border-radius: 23px;
        color: #fff;
        cursor: pointer;
        display: grid;
        grid-template-columns: 1fr auto;
        align-items: center;
        text-align: center;
        background: linear-gradient(135deg, #4b2eea 0%, #7b4dff 50%, #8f61ff 100%);
        box-shadow: 0 20px 44px rgba(100, 61, 240, 0.28);
        position: relative;
        overflow: hidden;
      }
      .hero-cta::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.28) 45%, transparent 70%);
        transform: translateX(-110%) skewX(-16deg);
        animation: shimmer 3.6s ease-in-out infinite;
      }
      .hero-cta-main { position: relative; z-index: 1; display: block; font-size: clamp(22px, 4vw, 30px); font-weight: 900; letter-spacing: -0.04em; }
      .hero-cta-sub { position: relative; z-index: 1; display: block; margin-top: 10px; font-size: clamp(15px, 3vw, 20px); opacity: 0.78; font-weight: 600; }
      .hero-cta-arrow { position: relative; z-index: 1; font-size: 42px; line-height: 1; padding-left: 18px; }
      @keyframes shimmer { 0%, 40% { transform: translateX(-115%) skewX(-16deg); } 70%, 100% { transform: translateX(115%) skewX(-16deg); } }

      .notice {
        margin: 0 0 22px;
        padding: 17px 22px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        text-align: center;
        color: #68728b;
        font-size: 16px;
        font-weight: 600;
        line-height: 1.55;
        border: 1px solid var(--line);
        border-radius: 20px;
        background: rgba(255, 255, 255, 0.78);
        box-shadow: 0 12px 38px rgba(23, 32, 59, 0.04);
      }
      .notice strong { color: var(--warning); }

      .activation-card,
      .why-card,
      .footer-card {
        background: var(--card);
        border: 1px solid var(--line);
        border-radius: 28px;
        box-shadow: 0 18px 55px rgba(23, 32, 59, 0.06);
        backdrop-filter: blur(22px) saturate(180%);
        -webkit-backdrop-filter: blur(22px) saturate(180%);
      }
      .activation-card { overflow: hidden; }
      .tab-bar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        border-bottom: 1px solid rgba(229, 232, 245, 0.95);
        background: rgba(255, 255, 255, 0.6);
      }
      .tab-btn {
        min-height: 80px;
        border: 0;
        background: transparent;
        cursor: pointer;
        color: #7c859b;
        font-size: clamp(17px, 3vw, 22px);
        font-weight: 900;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        position: relative;
      }
      .tab-btn svg { width: 26px; height: 26px; }
      .tab-btn.active { color: var(--purple); }
      .tab-btn.active::after { content: ''; position: absolute; left: 22px; right: 0; bottom: -1px; height: 4px; border-radius: 99px 99px 0 0; background: var(--purple); }
      .tab-btn + .tab-btn { border-left: 1px solid rgba(229, 232, 245, 0.9); }
      .tab-panel { padding: 34px 32px 28px; }

      .form-step { display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 16px; margin-bottom: 14px; }
      .step-badge {
        width: 34px;
        height: 34px;
        border-radius: 50%;
        display: grid;
        place-items: center;
        color: #fff;
        font-size: 18px;
        font-weight: 900;
        background: linear-gradient(135deg, #4b2eea, #8c59ff);
        box-shadow: 0 10px 20px rgba(100, 61, 240, 0.24);
      }
      .form-label { color: #18213d; font-size: clamp(18px, 3vw, 22px); line-height: 1.3; font-weight: 900; letter-spacing: -0.025em; }
      .paste-btn, .outline-btn, .status-action {
        min-height: 44px;
        border-radius: 14px;
        border: 1px solid var(--line);
        background: linear-gradient(180deg, #ffffff, #f7f8fd);
        color: #3f4965;
        padding: 0 16px;
        font-size: 16px;
        font-weight: 800;
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        text-decoration: none;
        box-shadow: 0 8px 20px rgba(23, 32, 59, 0.05);
      }
      .outline-btn {
        min-height: 52px;
        color: var(--purple);
        background: linear-gradient(180deg, #ffffff, #f7f3ff);
        border-color: #ddd5ff;
      }
      .field-row { margin: 12px 0 26px; padding-left: 50px; }
      .input-control {
        width: 100%;
        min-height: 58px;
        border-radius: 14px;
        border: 1px solid #dbe0ee;
        background: rgba(255, 255, 255, 0.92);
        padding: 0 18px;
        outline: none;
        color: #18213d;
        font-size: clamp(16px, 3vw, 20px);
        font-family: var(--font-mono) !important;
        font-weight: 700;
        letter-spacing: 0.02em;
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
        transition: border-color .2s, box-shadow .2s;
      }
      .input-control::placeholder { color: #9ba4ba; }
      .input-control:focus { border-color: var(--purple); box-shadow: 0 0 0 4px rgba(112, 73, 245, 0.12); }
      .auto-link-wrap { margin-bottom: 18px; }

      .secure-box {
        margin: 8px 0 0 50px;
        padding: 18px 20px;
        border-radius: 22px;
        background: linear-gradient(135deg, rgba(112, 73, 245, 0.10), rgba(140, 89, 255, 0.04));
        display: flex;
        align-items: center;
        gap: 16px;
        color: #6d4cf0;
        font-size: 16px;
        line-height: 1.5;
      }
      .secure-box svg { width: 36px; height: 36px; flex: 0 0 auto; }
      .secure-box b { display: block; color: var(--purple); font-size: 17px; font-weight: 900; }
      .secure-box span { color: #66728d; font-weight: 600; }

      .status-box {
        display: none;
        margin: 20px 0 0;
        padding: 16px 18px;
        border-radius: 18px;
        font-size: 15px;
        line-height: 1.55;
        font-weight: 700;
      }
      .status-box.info { display: block; color: #4b2eea; background: rgba(112, 73, 245, 0.09); border: 1px solid rgba(112, 73, 245, 0.18); }
      .status-box.success { display: block; color: #087a4b; background: rgba(35, 178, 109, 0.10); border: 1px solid rgba(35, 178, 109, 0.22); }
      .status-box.error { display: block; color: #b91c1c; background: rgba(232, 77, 87, 0.10); border: 1px solid rgba(232, 77, 87, 0.20); }
      .status-box.warning { display: block; color: #9a4b00; background: rgba(255, 166, 0, 0.12); border: 1px solid rgba(255, 166, 0, 0.25); }
      .spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid currentColor; border-top-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -3px; margin-right: 8px; }
      @keyframes spin { to { transform: rotate(360deg); } }

      .primary-form-btn {
        width: 100%;
        min-height: 64px;
        margin-top: 6px;
        border: 0;
        border-radius: 20px;
        color: #fff;
        cursor: pointer;
        font-size: clamp(17px, 3vw, 21px);
        font-weight: 900;
        letter-spacing: -0.02em;
        background: linear-gradient(135deg, #4b2eea 0%, #7049f5 52%, #8c59ff 100%);
        box-shadow: 0 16px 38px rgba(100, 61, 240, 0.28);
      }
      .primary-form-btn:disabled { opacity: .7; cursor: wait; }

      .lookup-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; }
      .status-action { width: 100%; min-height: 54px; }
      .status-action.purple { color: #fff; border: 0; background: linear-gradient(135deg, #4b2eea, #8c59ff); }

      .why-card { margin-top: 18px; padding: 22px 34px; }
      .why-card h2 { margin: 0 0 20px; font-size: 24px; line-height: 1.2; color: #18213d; letter-spacing: -0.04em; }
      .why-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; }
      .why-item { display: flex; align-items: center; gap: 13px; color: #18213d; font-size: 15px; line-height: 1.35; font-weight: 800; }
      .why-ico { width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; flex: 0 0 auto; color: #fff; background: linear-gradient(135deg, #4b2eea, #8c59ff); box-shadow: 0 12px 26px rgba(100, 61, 240, 0.24); }
      .why-ico svg { width: 24px; height: 24px; }

      .stats-band {
        margin: 24px 10px 34px;
        padding: 24px 20px;
        border-radius: 24px;
        color: #fff;
        background: linear-gradient(135deg, #4b2eea 0%, #7049f5 48%, #8c59ff 100%);
        box-shadow: 0 20px 45px rgba(100, 61, 240, 0.28);
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        overflow: hidden;
      }
      .stat { min-height: 112px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 6px; padding: 0 14px; position: relative; }
      .stat + .stat::before { content: ''; position: absolute; left: 0; top: 12px; bottom: 12px; width: 1px; background: rgba(255, 255, 255, 0.24); }
      .stat svg { width: 30px; height: 30px; opacity: .95; }
      .stat b { font-size: 26px; line-height: 1; font-weight: 900; }
      .stat span { font-size: 16px; line-height: 1.35; opacity: .9; font-weight: 600; }

      .footer-card { margin: 0 18px 14px; padding: 28px 20px; display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 20px; align-items: center; }
      .footer-brand { display: flex; gap: 15px; align-items: flex-start; }
      .footer-brand img, .footer-brand video { width: 46px; height: 46px; border-radius: 14px; object-fit: cover; box-shadow: 0 10px 22px rgba(23, 32, 59, 0.10); }
      .footer-brand b { display: block; color: #17203b; font-size: 28px; line-height: 1; font-weight: 900; letter-spacing: -0.05em; margin-bottom: 10px; }
      .footer-brand span { color: #66728d; font-size: 16px; line-height: 1.45; font-weight: 600; }
      .contact-tile { min-height: 76px; padding: 14px 18px; border-radius: 20px; border: 1px solid var(--line); display: flex; align-items: center; gap: 14px; background: rgba(255, 255, 255, 0.72); text-decoration: none; }
      .contact-ico { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; color: var(--purple); background: #f0ecff; }
      .contact-ico svg { width: 25px; height: 25px; }
      .contact-tile b { display: block; color: #3f4965; font-size: 16px; margin-bottom: 4px; }
      .contact-tile span { color: var(--purple); font-size: 16px; font-weight: 900; }
      .browser-pill { margin: 0 auto 10px; width: fit-content; display: flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 999px; color: #656d80; background: rgba(244, 246, 252, .9); font-weight: 800; }
      .home-indicator { width: 132px; height: 5px; border-radius: 99px; background: #060710; margin: 0 auto 12px; }

      @media (max-width: 760px) {
        .ios-statusbar { padding: 0 18px; }
        .gg-nav { padding: 15px 18px 18px; }
        .brand-icon { width: 58px; height: 58px; border-radius: 18px; }
        .telegram-pill { min-height: 48px; padding: 0 16px; font-size: 15px; }
        .menu-button { width: 42px; }
        .hero { grid-template-columns: 1fr; padding-top: 38px; gap: 6px; }
        .cert-art { min-height: 245px; margin-top: -8px; }
        .feature-row { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 30px; gap: 16px; }
        .tab-panel { padding: 28px 24px 24px; }
        .form-step { grid-template-columns: 34px 1fr auto; gap: 12px; }
        .field-row, .secure-box { padding-left: 0; margin-left: 0; }
        .why-card { padding: 20px; }
        .why-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
        .stats-band { grid-template-columns: repeat(2, 1fr); margin-left: 0; margin-right: 0; }
        .stat + .stat::before { display: none; }
        .stat:nth-child(odd)::after { content: ''; position: absolute; right: 0; top: 12px; bottom: 12px; width: 1px; background: rgba(255,255,255,.22); }
        .footer-card { grid-template-columns: 1fr; margin-left: 0; margin-right: 0; }
      }

      @media (max-width: 480px) {
        #root main { padding-left: 14px !important; padding-right: 14px !important; }
        .ios-statusbar { font-size: 16px; height: 36px; }
        .brand { gap: 12px; }
        .brand-name { font-size: 28px; }
        .brand-online { font-size: 14px; margin-top: 7px; }
        .telegram-pill { font-size: 0; width: 48px; padding: 0; border-radius: 14px; }
        .telegram-pill svg { width: 23px; height: 23px; }
        .hero-title { font-size: 32px; }
        .hero-subtitle { font-size: 17px; }
        .mini-feature b { font-size: 13px; }
        .mini-icon { width: 50px; height: 50px; }
        .cert-card { width: 150px; height: 212px; }
        .hero-cta { min-height: 88px; padding: 16px 20px; }
        .hero-cta-arrow { font-size: 34px; }
        .tab-btn { min-height: 70px; font-size: 15px; gap: 8px; }
        .tab-btn svg { width: 22px; height: 22px; }
        .tab-panel { padding: 24px 18px 20px; }
        .form-step { grid-template-columns: 34px 1fr; }
        .form-step .paste-btn { grid-column: 2; justify-self: start; margin-top: 4px; }
        .form-label { font-size: 18px; }
        .lookup-actions { grid-template-columns: 1fr; }
        .stats-band { padding: 20px 12px; }
        .stat b { font-size: 22px; }
        .stat span { font-size: 14px; }
      }

      /* Mobile layout hardening: keep every section inside the device viewport. */
      @media (max-width: 760px) {
        html, body { width: 100%; max-width: 100%; overflow-x: hidden; }
        .gg-top-shell, #root, #root main, #root main > div, .gg-landing { width: 100%; max-width: 100%; min-width: 0; }
        .ios-statusbar, .gg-nav { width: 100%; max-width: none; }
        #root main { padding-left: 12px !important; padding-right: 12px !important; }
        .gg-nav { gap: 8px; padding: 12px 12px 16px; }
        .brand { gap: 10px; min-width: 0; }
        .brand-icon { width: 52px; height: 52px; border-radius: 16px; }
        .brand-name { font-size: 26px; }
        .brand-online { margin-top: 5px; font-size: 13px; }
        .nav-actions { gap: 4px; flex: 0 0 auto; }
        .telegram-pill { width: 44px; min-height: 44px; padding: 0; border-radius: 13px; font-size: 0; }
        .telegram-pill svg { width: 21px; height: 21px; }
        .menu-button { width: 40px; height: 44px; }

        .hero { min-height: 330px; padding: 38px 0 12px; }
        .hero > div:first-child { position: relative; z-index: 2; width: 64%; }
        .hero-title { max-width: 100%; font-size: clamp(24px, 7.6vw, 34px); line-height: 1.12; }
        .hero-subtitle { margin-top: 14px; font-size: 15px; line-height: 1.45; }
        .cert-art { display: grid; position: absolute; z-index: 1; top: 14px; right: -16px; width: 48%; min-height: 250px; margin: 0; transform: scale(.82); transform-origin: top right; }
        .cert-card { width: 142px; height: 196px; }
        .orbital { width: 250px; }
        .feature-row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 8px; margin-top: 24px; }
        .mini-feature { gap: 8px; }
        .mini-icon { width: 42px; height: 42px; }
        .mini-icon svg { width: 21px; height: 21px; }
        .mini-feature b { font-size: 12px; }

        .hero-cta { grid-template-columns: 1fr auto; min-height: 78px; margin: 2px 0 14px; padding: 14px 16px; border-radius: 18px; text-align: left; }
        .hero-cta-main { font-size: clamp(16px, 4.8vw, 21px); line-height: 1.1; }
        .hero-cta-sub { margin-top: 5px; font-size: 12px; line-height: 1.25; }
        .hero-cta-arrow { padding-left: 8px; font-size: 30px; }
        .notice { align-items: flex-start; justify-content: flex-start; gap: 7px; margin-bottom: 14px; padding: 12px 13px; border-radius: 15px; text-align: left; font-size: 13px; line-height: 1.4; }

        .activation-card, .why-card, .footer-card { border-radius: 20px; }
        .tab-btn { min-height: 64px; padding: 8px 5px; gap: 4px; font-size: 13px; line-height: 1.15; }
        .tab-btn svg { width: 20px; height: 20px; flex: 0 0 auto; }
        .tab-btn span { max-width: 100%; text-align: center; white-space: normal; }
        .tab-btn.active::after { left: 8px; height: 3px; }
        .tab-panel { padding: 20px 14px 18px; }
        .form-step { grid-template-columns: 32px minmax(0, 1fr); gap: 9px; align-items: start; margin-bottom: 8px; }
        .step-badge { width: 30px; height: 30px; font-size: 16px; }
        .form-label { padding-top: 4px; font-size: 16px; line-height: 1.25; }
        .form-step .paste-btn { grid-column: 2; justify-self: start; min-height: 36px; margin-top: 1px; padding: 0 11px; border-radius: 10px; font-size: 13px; }
        .field-row { margin: 8px 0 18px; padding: 0; }
        .input-control { min-height: 52px; padding: 0 12px; border-radius: 12px; font-size: 13px; letter-spacing: 0; }
        .outline-btn { width: 100%; min-height: 46px; font-size: 14px; }
        .auto-link-wrap { margin-bottom: 12px; }
        .secure-box { margin: 8px 0 0; padding: 12px; gap: 9px; border-radius: 15px; font-size: 12px; line-height: 1.35; }
        .secure-box svg { width: 27px; height: 27px; }
        .secure-box b { font-size: 13px; }
        .primary-form-btn { min-height: 56px; margin-top: 14px; border-radius: 15px; font-size: 16px; }
        .lookup-actions { grid-template-columns: 1fr; gap: 8px; margin-top: 12px; }
        .status-action { min-height: 48px; font-size: 14px; }

        .why-card { margin-top: 14px; padding: 16px 13px; }
        .why-card h2 { margin-bottom: 14px; font-size: 20px; }
        .why-grid { gap: 10px; }
        .why-item { gap: 8px; font-size: 12px; }
        .why-ico { width: 38px; height: 38px; }
        .why-ico svg { width: 19px; height: 19px; }
        .stats-band { margin: 14px 0 20px; padding: 12px 6px; border-radius: 18px; }
        .stat { min-height: 92px; padding: 0 4px; gap: 4px; }
        .stat svg { width: 23px; height: 23px; }
        .stat b { font-size: 19px; }
        .stat span { font-size: 11px; }
        .footer-card { margin: 0 0 10px; padding: 18px 14px; gap: 10px; }
        .footer-brand span, .contact-tile span { font-size: 13px; }
        .contact-tile { min-height: 62px; padding: 10px 12px; }
        .contact-ico { width: 36px; height: 36px; }
        .browser-pill { margin-bottom: 8px; font-size: 12px; }
      }

      @media (max-width: 360px) {
        .brand-online { font-size: 12px; }
        .hero-title { font-size: 26px; }
        .mini-icon { width: 38px; height: 38px; }
        .mini-feature b { font-size: 11px; }
        .tab-btn { font-size: 12px; }
      }

      /* Compact centered frame matching the requested reference layout. */
      .companion-section { margin-top: 44px; display: flex; align-items: center; justify-content: space-between; gap: 18px; color: #34405b; font-size: 16px; letter-spacing: .02em; }
      .esign-pill { display: inline-flex; align-items: center; justify-content: center; min-width: 116px; min-height: 58px; border-radius: 18px; color: #34405b; background: #f3f6fb; box-shadow: 0 12px 28px rgba(112,73,245,.18); font-weight: 900; }
      .app-banner { margin: 22px 26px 0; padding: 14px 18px; display: flex; align-items: center; gap: 14px; border: 1px solid #dfe7ff; border-radius: 22px; background: linear-gradient(135deg,#f7f8ff,#eef3ff); }
      .app-banner img, .app-banner video { width: 58px; height: 58px; flex: 0 0 auto; object-fit: contain; padding: 5px; border-radius: 15px; background: #fff; box-shadow: 0 8px 18px rgba(23,32,59,.14); }
      .app-banner div { min-width: 0; flex: 1; }
      .app-banner b { display: block; color: #17203b; font-size: 19px; }
      .app-banner span { display: block; margin-top: 4px; color: #7a849c; font-size: 14px; }
      .app-banner a { padding: 12px 18px; border-radius: 16px; color: #fff; background: #0788c7; text-decoration: none; font-weight: 900; white-space: nowrap; box-shadow: 0 10px 20px rgba(0,128,196,.22); }

      @media (min-width: 761px) {
        .ios-statusbar { display: none; }
        .gg-nav { max-width: 1040px; padding: 14px 0 16px; }
        .brand-icon { width: 54px; height: 54px; border-radius: 16px; }
        .brand-name { font-size: 27px; }
        .brand-online { margin-top: 4px; font-size: 14px; }
        .telegram-pill { min-height: 48px; padding: 0 18px; background: #0788c7; }
        #root main { padding: 34px 18px 60px !important; }
        #root main > div { max-width: 860px !important; }
        .gg-landing { max-width: 860px; margin: 0 auto; }
        .frame-hero { min-height: 310px; padding: 40px 42px 30px; display: block; background: rgba(255,255,255,.94); border: 1px solid #e1e6f2; border-radius: 28px; box-shadow: 0 22px 58px rgba(36,55,96,.08); }
        .frame-hero > div:first-child { width: 100%; }
        .frame-hero .hero-title { text-align: center; font-size: 34px; }
        .frame-hero .hero-subtitle { text-align: center; font-size: 18px; }
        .frame-hero .companion-section { margin-top: 46px; }
        .feature-row, .cert-art, .hero-cta, .notice { display: none !important; }
        .activation-card { margin-top: 22px; padding-bottom: 12px; }
        .activation-card .tab-bar { margin: 0 26px; border-radius: 16px; overflow: hidden; border: 1px solid #dfe7f4; }
        .activation-card .tab-panel { padding: 28px 34px 24px; }
        .form-step { grid-template-columns: 1fr auto; gap: 12px; }
        .step-badge { display: none; }
        .form-label { text-transform: uppercase; font-size: 16px; letter-spacing: .02em; }
        .auto-link-wrap { margin-top: -64px; margin-left: auto; width: 190px; padding-left: 0; }
        .auto-link-wrap .outline-btn { min-height: 40px; padding: 0 10px; font-size: 13px; }
        .field-row { padding-left: 0; }
        .why-card { margin-top: 18px; }
        .stats-band, .footer-card { display: none; }
      }

      @media (max-width: 760px) {
        .frame-hero { min-height: 220px; padding-top: 28px; }
        .frame-hero > div:first-child { width: 100%; }
        .frame-hero .hero-title, .frame-hero .hero-subtitle { text-align: center; }
        .companion-section { margin-top: 26px; font-size: 12px; }
        .esign-pill { min-width: 78px; min-height: 42px; border-radius: 13px; }
        .app-banner { margin: 14px 12px 0; padding: 10px; gap: 9px; border-radius: 16px; }
        .app-banner img, .app-banner video { width: 44px; height: 44px; }
        .app-banner b { font-size: 16px; }
        .app-banner span { font-size: 11px; }
        .app-banner a { padding: 9px 10px; border-radius: 11px; font-size: 12px; }
      }

      /* Final reference layout: wide hero, split activation workspace, guide and footer. */
      .nav-links { display: none; align-items: center; gap: 28px; margin-left: auto; margin-right: 22px; }
      .nav-links a { color: #24304e; text-decoration: none; font-size: 14px; font-weight: 800; }
      .nav-links a:hover { color: var(--purple); }
      .gg-landing > #btnHeroActivate { display: none !important; }
      .frame-side { min-width: 0; }
      .activation-main { min-width: 0; }
      .activation-heading { margin: 0 0 16px; color: #18213d; font-size: 18px; letter-spacing: .02em; }
      .side-tabs { display: grid; gap: 10px; margin-top: 16px; }
      .side-tab { min-height: 56px; padding: 0 16px; display: flex; align-items: center; gap: 10px; border: 1px solid #e1e6f2; border-radius: 15px; background: #f8faff; color: #5a6780; font: 800 15px var(--font-main); text-align: left; cursor: pointer; }
      .side-tab svg { width: 20px; height: 20px; color: var(--purple); }
      .side-tab.active { color: var(--purple); border-color: #cfc2ff; background: #fff; box-shadow: 0 8px 22px rgba(112,73,245,.12); }
      .side-why { display: grid; gap: 10px; margin: 28px 2px 0; color: #60708b; font-size: 13px; line-height: 1.35; }
      .side-why b { color: #34405b; font-size: 15px; }
      .side-why span::first-letter { color: var(--purple); }
      .side-support { position: relative; display: block; margin-top: 26px; padding: 16px; border-radius: 16px; color: #6c55dc; background: #f2efff; text-decoration: none; }
      .side-support b, .side-support span { display: block; }
      .side-support b { font-size: 14px; }
      .side-support span { margin-top: 5px; font-size: 12px; line-height: 1.45; }
      .side-support strong { position: absolute; right: 14px; top: 25px; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: #8b6cff; }
      .guide-card { margin-top: 24px; padding: 24px 18px; border: 1px solid #e6e9f4; border-radius: 20px; background: rgba(255,255,255,.76); box-shadow: 0 14px 34px rgba(23,32,59,.04); }
      .guide-card h2 { margin: 0 0 18px; color: var(--purple); text-align: center; font-size: 17px; letter-spacing: .02em; }
      .guide-grid { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: center; gap: 10px; }
      .guide-step { min-height: 94px; padding: 13px; display: grid; grid-template-columns: 42px 1fr; column-gap: 10px; align-items: center; border-radius: 15px; background: #fff; box-shadow: 0 10px 24px rgba(23,32,59,.05); }
      .guide-step > span { grid-row: 1 / span 2; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: linear-gradient(135deg,#7049f5,#9b6dff); }
      .guide-step svg { width: 22px; height: 22px; }
      .guide-step b { color: #34405b; font-size: 13px; }
      .guide-step small { color: #78859c; font-size: 11px; line-height: 1.35; }
      .guide-grid > i { color: var(--purple); font-size: 24px; font-style: normal; }

      @media (min-width: 761px) {
        .nav-links { display: flex; }
        .menu-button { display: none; }
        .gg-nav { max-width: 1120px; }
        #root main { padding: 34px 0 60px !important; }
        #root main > div { max-width: 1120px !important; }
        .gg-landing { max-width: 1120px; }
        .frame-hero { min-height: 410px; padding: 54px 0 28px; display: grid; grid-template-columns: 1.12fr .88fr; gap: 34px; align-items: center; background: transparent; border: 0; box-shadow: none; }
        .frame-hero > div:first-child { width: auto; }
        .frame-hero .hero-title { text-align: left; font-size: clamp(36px,4vw,54px); }
        .frame-hero .hero-subtitle { text-align: left; font-size: 18px; }
        .frame-hero .feature-row { display: grid !important; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-top: 34px; }
        .frame-hero .mini-feature { min-height: 58px; padding: 10px; border: 1px solid #e1ddff; border-radius: 14px; background: rgba(255,255,255,.72); gap: 8px; }
        .frame-hero .mini-icon { width: 30px; height: 30px; }
        .frame-hero .mini-icon svg { width: 17px; height: 17px; }
        .frame-hero .mini-feature b { font-size: 12px; }
        .frame-hero .mini-feature small { display: block; margin-top: 3px; color: #7a849c; font-size: 9px; font-weight: 600; }
        .frame-hero .hero-inline-cta { display: inline-grid !important; width: 245px; min-height: 66px; margin-top: 34px; text-align: center; }
        .frame-hero .hero-inline-cta .hero-cta-main { font-size: 18px; }
        .frame-hero .hero-inline-cta .hero-cta-sub { margin-top: 6px; font-size: 12px; }
        .frame-hero .cert-art { display: grid !important; position: relative; inset: auto; width: 100%; min-height: 340px; margin: 0; transform: none; }
        .frame-hero .cert-reference-art { width: min(100%, 480px); margin: 0 auto; }
        .activation-card { display: grid; grid-template-columns: 290px minmax(0,1fr); gap: 28px; padding: 26px; overflow: visible; border-radius: 24px; }
        .app-banner { margin: 0; display: block; padding: 18px; }
        .app-banner img, .app-banner video { width: 62px; height: 62px; margin-bottom: 10px; }
        .app-banner a { display: inline-block; margin-top: 15px; }
        .app-banner span { line-height: 1.35; }
        .activation-main .tab-bar { margin: 0 0 22px; border: 1px solid #dfe7f4; border-radius: 15px; overflow: hidden; }
        .activation-main .tab-bar { display: none; }
        .activation-main .tab-btn { min-height: 60px; font-size: 16px; }
        .activation-main .tab-panel { padding: 0 0 12px; }
        .activation-main .form-step { grid-template-columns: 34px 1fr auto; }
        .activation-main .form-label { text-transform: none; font-size: 16px; }
        .activation-main .step-badge { display: grid; }
        .activation-main .field-row { padding-left: 46px; }
        .activation-main .secure-box { margin-left: 46px; }
        .stats-band { display: grid !important; margin-left: 0; margin-right: 0; }
        .footer-card { display: grid !important; margin-left: 0; margin-right: 0; }
        .gg-landing > .notice { display: flex !important; }
      }

      @media (max-width: 760px) {
        .nav-links { display: none; }
        .frame-hero .feature-row { display: grid; }
        .frame-hero .cert-art { display: none !important; }
        .activation-card { display: block; }
        .activation-main { margin-top: 18px; }
        .guide-grid { grid-template-columns: 1fr 1fr; }
        .guide-grid > i { display: none; }
      }
    
      /* Use the transparent Good Game artwork for standalone brand wordmarks. */
      .brand-name .brand-wordmark,
      .app-banner .brand-wordmark,
      .footer-brand .brand-wordmark {
        display: block;
        width: 72px;
        max-width: 100%;
        height: auto;
        aspect-ratio: 1672 / 941;
        object-fit: contain;
        margin: 0;
        padding: 0;
        border: 0;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
      }
      .footer-brand .brand-wordmark {
        width: 72px;
        margin-bottom: 6px;
      }
      .app-banner .brand-wordmark {
        width: 72px;
        margin-bottom: 4px;
      }

      /* Compact branding and readable content; keep the existing page sections. */
      .gg-nav { padding: 12px 18px; }
      .brand > div:last-child { min-width: 0; }
      .brand-online { margin-top: 2px; font-size: 12px; line-height: 1.25; }
      .notice > strong { flex: 0 0 auto; white-space: nowrap; }
      .notice > span { flex: 1 1 0; min-width: 0; overflow-wrap: break-word; }

      @media (max-width: 760px) {
        .gg-nav { padding: 10px 12px; gap: 8px; }
        .brand { gap: 8px; }
        .brand-icon { width: 44px; height: 44px; padding: 4px; border-radius: 14px; }
        .brand-name .brand-wordmark { width: 58px; }
        .app-banner .brand-wordmark { width: 52px; }
        .footer-brand .brand-wordmark { width: 64px; }
        .brand-online { margin-top: 1px; font-size: 11px; line-height: 1.25; white-space: nowrap; }
        .brand-online::before { display: none; }
        .online-dot { width: 12px; height: 12px; border-width: 2px; box-shadow: 0 0 0 3px rgba(35, 178, 109, 0.12); }

        .frame-hero { min-height: 0; padding: 24px 0 20px; }
        .frame-hero .hero-title { font-size: clamp(24px, 6.2vw, 30px); line-height: 1.2; letter-spacing: -0.03em; word-spacing: 0.06em; }
        .frame-hero .hero-subtitle { margin-top: 12px; font-size: 14px; line-height: 1.5; }
        .frame-hero .feature-row { gap: 14px 12px; margin-top: 20px; }
        .frame-hero .mini-feature { align-items: flex-start; gap: 8px; }
        .frame-hero .mini-icon { width: 34px; height: 34px; }
        .frame-hero .mini-icon svg { width: 19px; height: 19px; }
        .frame-hero .mini-feature b { min-width: 0; font-size: 12px; line-height: 1.35; text-align: left; }
        .frame-hero .mini-feature small {
          display: block;
          margin-top: 3px;
          color: #66728d;
          font-size: 11px;
          line-height: 1.4;
          font-weight: 500;
        }
        .frame-hero .hero-inline-cta { min-height: 68px; margin: 18px 0 0; padding: 12px 16px; }
        .notice { gap: 8px; padding: 12px; font-size: 12px; line-height: 1.5; }

        .app-banner { display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; gap: 8px; align-items: center; }
        .app-banner > video { width: 44px; height: 44px; margin: 0; }
        .app-banner > div { min-width: 0; }
        .app-banner > div > span { font-size: 11px; line-height: 1.4; overflow-wrap: break-word; }
        .app-banner > a { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; white-space: nowrap; }
        .side-tabs { display: none; }
        .activation-card { display: flex; flex-direction: column; }
        .activation-card > .frame-side { display: contents; }
        .activation-card .app-banner { order: 0; }
        .activation-main { order: 1; margin: 18px 14px 0; }
        .activation-card .side-why { order: 2; margin: 18px 16px 0; }
        .activation-card .side-support { order: 3; margin: 16px; }
        .input-control { font-size: 16px; }
      }

      @media (max-width: 360px) {
        .brand-name .brand-wordmark { width: 52px; }
        .footer-brand .brand-wordmark { width: 58px; }
        .frame-hero .feature-row { grid-template-columns: 1fr; gap: 12px; }
        .app-banner { grid-template-columns: 44px minmax(0, 1fr); }
        .app-banner > a { grid-column: 2; justify-self: start; }
      }

      @media (min-width: 761px) and (max-width: 1023px) {
        .nav-links { display: none; }
        .menu-button { display: grid; }
        #root main { padding: 28px 20px 48px !important; }
        .frame-hero { grid-template-columns: 1fr; min-height: 0; padding: 28px 0; }
        .frame-hero .hero-title, .frame-hero .hero-subtitle { text-align: center; }
        .frame-hero .cert-art { display: none !important; }
        .frame-hero .feature-row { max-width: 640px; margin: 24px auto 0; }
        .frame-hero .hero-inline-cta { margin: 24px auto 0; }
        .activation-card { grid-template-columns: 230px minmax(0, 1fr); gap: 20px; padding: 20px; }
      }