:root { --tool: #0891b2; --tool-dark: #0e7490; --tool-light: #ecfeff; --tool-border: #a5f3fc; }
    .tool-hero {
      background: linear-gradient(160deg, #ecfeff 0%, #f0fdf4 100%);
      padding: 100px 0 60px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .tool-hero::before {
      content: '';
      position: absolute;
      top: -120px; right: -120px;
      width: 480px; height: 480px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(8,145,178,.16) 0%, transparent 70%);
      pointer-events: none;
    }
    .tool-hero::after {
      content: '';
      position: absolute;
      bottom: -60px; left: -100px;
      width: 380px; height: 380px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(22,163,74,.13) 0%, transparent 70%);
      pointer-events: none;
    }
    .tool-hero__inner { position: relative; z-index: 1; }
    .share-brand-mark { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 28px; }
    .share-brand-mark img { border-radius: 12px; box-shadow: 0 6px 16px rgba(8,145,178,0.28); }
    .share-brand-mark span { font-size: 20px; font-weight: 900; letter-spacing: -0.4px; color: var(--gray-900); }
    .tool-badge { display: inline-flex; align-items: center; gap: 6px; background: var(--tool-light); color: var(--tool-dark); border: 1px solid var(--tool-border); border-radius: 999px; padding: 6px 14px; font-size: 13px; font-weight: 600; margin-bottom: 20px; box-shadow: 0 2px 8px rgba(8,145,178,0.1); }
    .tool-badge__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green-500); }
    .tool-hero h1 { font-size: clamp(2rem, 5.5vw, 3.5rem); font-weight: 900; line-height: 1.1; color: var(--gray-900); letter-spacing: -1.5px; margin-bottom: 18px; }
    .text-gradient { color: var(--tool-dark); background: none; -webkit-background-clip: border-box; background-clip: border-box; -webkit-text-fill-color: var(--tool-dark); }
    .tool-hero p.subtitle { font-size: clamp(15px, 2.5vw, 18px); color: var(--gray-600); max-width: 620px; margin: 0 auto 28px; line-height: 1.65; }
    .trust-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 40px; }
    .trust-pill { display: inline-flex; align-items: center; gap: 6px; background: white; border: 1px solid var(--border); border-radius: var(--radius-pill); padding: 7px 14px; font-size: 13px; font-weight: 500; color: var(--gray-700); box-shadow: var(--shadow-sm); }
    .trust-pill svg { color: var(--tool); }

    .app-container { max-width: 720px; margin: 0 auto; background: white; border: 1px solid var(--border); border-radius: 24px; box-shadow: 0 20px 60px -12px rgba(8,145,178,0.18), 0 4px 16px rgba(15,23,42,0.06); overflow: hidden; margin-bottom: 40px; padding: 32px; text-align: left; position: relative; }
    .app-container::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--tool-dark); }

    .share-drop-zone { border: 2px dashed var(--tool-border); border-radius: 16px; padding: 44px 20px; text-align: center; cursor: pointer; background: var(--tool-light); transition: all .15s ease; }
    .share-drop-zone:hover, .share-drop-zone.is-dragover { border-color: var(--tool); background: #cffafe; }
    .share-drop-zone svg { color: var(--tool-dark); margin-bottom: 12px; }
    .share-drop-zone p { font-size: 15px; font-weight: 600; color: var(--gray-800); margin-bottom: 4px; }
    .share-drop-zone span { font-size: 13px; color: var(--gray-500); }

    .share-file-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; background: var(--gray-50); border: 1px solid var(--border); border-radius: 10px; font-size: 14px; color: var(--gray-800); margin-top: 8px; }
    .share-file-remove { background: none; border: none; color: var(--gray-400); cursor: pointer; font-size: 14px; padding: 2px 6px; }
    .share-file-remove:hover { color: #ef4444; }

    #create-link-btn { width: 100%; margin-top: 18px; padding: 14px; background: var(--tool-dark); color: white; border: none; border-radius: 12px; font-size: 15px; font-weight: 700; cursor: pointer; font-family: var(--font); }
    #create-link-btn:disabled { opacity: 0.45; cursor: not-allowed; }

    .team-toggle { display: flex; gap: 6px; background: var(--gray-50); border: 1px solid var(--border); border-radius: 12px; padding: 4px; margin-top: 16px; }
    .team-toggle-btn { flex: 1; padding: 9px; border: none; background: none; border-radius: 9px; font-size: 13.5px; font-weight: 700; color: var(--gray-500); cursor: pointer; font-family: var(--font); }
    .team-toggle-btn.active { background: white; color: var(--tool-dark); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }

    .team-code-hint { font-size: 13px; color: var(--gray-500); line-height: 1.6; margin: 16px 0 12px; text-align: center; }
    .team-code-row { display: flex; gap: 8px; }
    .team-code-row input { flex: 1; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; font-size: 14px; color: var(--gray-800); font-family: var(--font); }
    .team-code-generate { display: block; width: 100%; margin-top: 12px; background: none; border: none; color: var(--tool-dark); font-size: 13px; font-weight: 600; cursor: pointer; text-decoration: underline; }
    .team-code-current { font-size: 13px; color: var(--gray-600); text-align: center; margin-top: 4px; }
    .team-code-current strong { color: var(--gray-900); font-family: monospace; }
    .team-code-current button { background: none; border: none; color: var(--tool-dark); font-size: 12.5px; font-weight: 600; cursor: pointer; text-decoration: underline; margin-left: 6px; }
    .team-roster { display: flex; flex-direction: column; gap: 8px; margin-top: 18px; max-height: 280px; overflow-y: auto; }
    .team-member-card { display: flex; align-items: center; gap: 10px; width: 100%; padding: 12px 14px; background: white; border: 1px solid var(--border); border-radius: 12px; cursor: pointer; font-family: var(--font); text-align: left; transition: border-color .15s, background .15s; }
    .team-member-card:hover { border-color: var(--tool); background: var(--tool-light); }
    .team-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--green-500); flex-shrink: 0; box-shadow: 0 0 0 3px rgba(34,197,94,0.15); }
    .team-member-name { font-size: 14.5px; font-weight: 700; color: var(--gray-800); }
    .team-empty { text-align: center; font-size: 13.5px; color: var(--gray-500); padding: 24px 10px; line-height: 1.6; }
    .team-status { font-size: 14px; color: var(--gray-600); text-align: center; font-weight: 600; margin-top: 14px; }

    #team-incoming-banner { max-width: 720px; margin: 0 auto 16px; background: white; border: 1px solid var(--tool-border); border-radius: 16px; padding: 16px 20px; text-align: center; box-shadow: 0 8px 24px rgba(8,145,178,0.1); }
    #team-incoming-banner .team-incoming-title { font-size: 14px; font-weight: 700; color: var(--gray-800); margin-bottom: 10px; }

    .share-link-box { margin-top: 20px; text-align: center; }
    .share-link-row { display: flex; gap: 8px; margin-bottom: 20px; }
    .share-link-row input { flex: 1; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; font-size: 13.5px; color: var(--gray-700); background: var(--gray-50); font-family: monospace; }
    .btn-alt { padding: 12px 18px; background: white; color: var(--tool-dark); border: 1px solid var(--tool-border); border-radius: 10px; font-size: 14px; font-weight: 700; cursor: pointer; font-family: var(--font); white-space: nowrap; text-decoration: none; display: inline-block; }
    .btn-alt:hover { background: var(--tool-light); }
    .share-qr-wrap { display: flex; justify-content: center; margin-bottom: 18px; }
    .share-qr-wrap canvas { border-radius: 12px; box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
    #send-status, #receive-status { font-size: 14px; color: var(--gray-600); text-align: center; margin-bottom: 16px; font-weight: 600; }

    .share-social-row { display: flex; justify-content: center; gap: 10px; margin-bottom: 22px; flex-wrap: wrap; }
    .share-social-btn { width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center; text-decoration: none; color: white; transition: transform .15s ease, box-shadow .15s ease; box-shadow: 0 2px 6px rgba(0,0,0,0.12); }
    .share-social-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 16px rgba(0,0,0,0.18); }
    .share-social-btn svg { width: 19px; height: 19px; }
    .share-social-btn--whatsapp { background: #25d366; }
    .share-social-btn--facebook { background: #1877f2; }
    .share-social-btn--email { background: var(--gray-600); }
    .share-social-btn--linkedin { background: #0a66c2; }
    .share-social-btn--twitter { background: #000000; }

    .share-progress-row { margin-bottom: 14px; }
    .share-progress-label { display: flex; justify-content: space-between; font-size: 13px; color: var(--gray-700); margin-bottom: 6px; }
    .share-progress-name { font-weight: 600; }
    .share-progress-pct { color: var(--gray-500); }
    .share-progress-bar { height: 8px; background: var(--gray-100); border-radius: 999px; overflow: hidden; }
    .share-progress-fill { height: 100%; width: 0%; background: var(--tool-dark); transition: width .2s ease; }

    /* Receiving status: animated connection indicator */
    .receive-status-header { display: flex; flex-direction: column; align-items: center; margin-bottom: 4px; }
    .receive-status-icon { position: relative; width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
    .receive-status-icon svg { position: relative; z-index: 2; color: var(--tool-dark); }
    .receive-status-icon::before { content: ''; position: absolute; inset: 0; border-radius: 50%; background: var(--tool-light); z-index: 1; }
    .receive-status-ring { position: absolute; inset: 0; border-radius: 50%; border: 1.5px solid var(--tool-border); animation: receivePulse 2.2s cubic-bezier(.4,0,.6,1) infinite; }
    .receive-status-ring--delay { animation-delay: 1.1s; }
    @keyframes receivePulse { 0% { transform: scale(1); opacity: .7; } 100% { transform: scale(1.9); opacity: 0; } }
    #receive-status { font-size: 15.5px; font-weight: 700; color: var(--gray-800); }
    .receive-progress-list { margin-top: 22px; }

    .share-received-item { margin-top: 14px; }
    .share-received-card { display: flex; align-items: center; gap: 16px; padding: 18px 20px 18px 22px; background: linear-gradient(180deg, #ffffff, #fbfdff); border: 1px solid var(--border); border-radius: 18px; box-shadow: 0 10px 28px -12px rgba(15,23,42,0.16); text-align: left; position: relative; overflow: hidden; transition: box-shadow .2s ease, transform .2s ease; }
    .share-received-card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--tool-dark); }
    .share-received-card:hover { box-shadow: 0 16px 36px -12px rgba(15,23,42,0.22); transform: translateY(-2px); }
    .share-received-icon { width: 48px; height: 48px; border-radius: 14px; background: var(--tool-light); color: var(--tool-dark); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .share-received-info { flex: 1; min-width: 0; }
    .share-received-name { font-size: 14.5px; font-weight: 700; color: var(--gray-900); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .share-received-meta { display: flex; align-items: center; gap: 6px; margin-top: 3px; }
    .share-received-size { font-size: 12.5px; color: var(--gray-500); }
    .share-received-badge { display: inline-flex; align-items: center; gap: 3px; font-size: 11.5px; font-weight: 700; color: #16a34a; }
    .share-received-badge::before { content: '•'; color: var(--gray-300); margin-right: 3px; font-weight: 400; }
    .share-received-badge svg { width: 12px; height: 12px; }
    .share-download-btn { display: inline-flex; align-items: center; gap: 9px; padding: 13px 22px; background: var(--tool-dark); color: white; border: none; border-radius: 12px; font-size: 14px; font-weight: 700; cursor: pointer; font-family: var(--font); text-decoration: none; white-space: nowrap; flex-shrink: 0; box-shadow: 0 10px 22px -6px rgba(8,145,178,0.5); transition: transform .15s ease, box-shadow .15s ease; letter-spacing: .1px; }
    .share-download-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 28px -6px rgba(8,145,178,0.55); }
    .share-download-btn:active { transform: translateY(0); box-shadow: 0 6px 14px -4px rgba(8,145,178,0.5); }
    .share-download-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
    @media (max-width: 480px) { .share-received-card { flex-wrap: wrap; } .share-download-btn { width: 100%; justify-content: center; } }
    .share-cancel-btn { display: block; margin: 18px auto 0; background: none; border: none; color: var(--gray-400); font-size: 13px; cursor: pointer; text-decoration: underline; }
    .share-cancel-btn:hover { color: #ef4444; }
    .share-keep-open { margin-top: 16px; padding: 12px 14px; background: #fffbeb; border: 1px solid #fde68a; border-radius: 10px; font-size: 13px; color: #92400e; text-align: center; }

    .problem-section { padding: 80px 0; background: var(--gray-50); }
    .problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 900px; margin: 0 auto; }
    .problem-item { display: flex; gap: 16px; background: white; border: 1px solid var(--border); border-radius: 16px; padding: 22px; text-align: left; }
    .problem-item__icon { width: 40px; height: 40px; border-radius: 10px; background: #fef2f2; color: #dc2626; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .problem-item h4 { font-size: 15.5px; font-weight: 700; color: var(--gray-900); margin-bottom: 6px; }
    .problem-item p { font-size: 14px; color: var(--gray-600); line-height: 1.6; margin: 0; }
    .why-strip { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-top: 40px; }
    .why-pill { display: flex; align-items: center; gap: 8px; background: white; border: 1px solid var(--tool-border); color: var(--tool-dark); border-radius: 999px; padding: 10px 18px; font-size: 13.5px; font-weight: 700; }
    @media (max-width: 700px) { .problem-grid { grid-template-columns: 1fr; } }

    .comparison-wrap { overflow-x: auto; margin: 48px 0; border-radius: 20px; border: 1px solid var(--border); box-shadow: 0 24px 48px -24px rgba(15,23,42,0.18); background: #fff; }
    .comparison-table { width: 100%; border-collapse: separate; border-spacing: 0; min-width: 640px; font-size: 14.5px; }
    .comparison-table th, .comparison-table td { padding: 16px 20px; text-align: left; border-bottom: 1px solid var(--border); }
    .comparison-table thead th { background: var(--gray-50); font-weight: 800; color: var(--gray-500); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; vertical-align: bottom; }
    .comparison-table tbody td:first-child { color: var(--gray-800); font-weight: 600; }
    .comparison-table tbody td { color: var(--gray-500); }
    .comparison-table tbody tr:last-child td { border-bottom: none; }
    .comparison-table tbody tr:nth-child(even) td { background: var(--gray-50); }
    .comparison-table tbody tr:nth-child(even) td.comparison-highlight { background: var(--tool-light); }
    .comparison-table td.comparison-highlight, .comparison-table th.comparison-highlight { background: var(--tool-light); border-left: 1px solid var(--tool-border); border-right: 1px solid var(--tool-border); }
    .comparison-table thead th.comparison-highlight { background: var(--gray-900); border-color: var(--gray-900); padding-top: 18px; padding-bottom: 18px; }
    .cmp-badge { display: block; font-size: 10.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: rgba(255,255,255,0.85); margin-bottom: 4px; }
    .cmp-name { display: block; font-size: 15px; font-weight: 900; color: #fff; letter-spacing: -0.2px; text-transform: none; }
    .cmp { display: inline-flex; align-items: center; gap: 7px; font-weight: 700; }
    .cmp svg { width: 16px; height: 16px; flex-shrink: 0; }
    .cmp--good { color: #15803d; }
    .cmp--good svg { color: #16a34a; background: #dcfce7; border-radius: 50%; padding: 2px; box-sizing: content-box; }
    .cmp--bad { color: var(--gray-400); font-weight: 600; }
    .cmp--bad svg { color: var(--gray-400); }
    .cmp--neutral { color: var(--gray-500); font-weight: 600; }

    .usecase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 24px; }
    .usecase-card { background: white; border: 1px solid var(--border); border-radius: 16px; padding: 26px; text-align: left; }
    .usecase-card__icon { width: 42px; height: 42px; border-radius: 12px; background: var(--tool-light); color: var(--tool-dark); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
    .usecase-card h4 { font-size: 15.5px; font-weight: 700; color: var(--gray-900); margin-bottom: 8px; }
    .usecase-card p { font-size: 13.5px; color: var(--gray-600); line-height: 1.6; margin: 0; }
    @media (max-width: 900px) { .usecase-grid { grid-template-columns: 1fr; } }

    @media (max-width: 640px) { .app-container { padding: 22px; } .share-link-row { flex-direction: column; } }

    /* Shared editorial styles */
    .how-section { padding: 80px 0; background: white; border-top: 1px solid var(--border); }
    .section-label { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--tool-dark); margin-bottom: 12px; }
    .section-title { font-size: clamp(24px, 5vw, 36px); font-weight: 800; color: var(--gray-900); margin-bottom: 16px; letter-spacing: -.8px; }
    .section-desc { font-size: 16px; color: var(--gray-500); max-width: 580px; margin: 0 auto 56px; line-height: 1.65; }
    .steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
    .step-card { background: var(--gray-50); border: 1px solid var(--border); border-radius: 20px; padding: 36px 28px; transition: all .25s ease; text-align: left; }
    .step-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); background: white; border-color: var(--tool-border); }
    .step-num { width: 48px; height: 48px; border-radius: 14px; background: var(--tool-light); color: var(--tool-dark); font-size: 20px; font-weight: 800; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
    .step-card h3 { font-size: 18px; font-weight: 700; color: var(--gray-900); margin-bottom: 12px; }
    .step-card p { font-size: 14.5px; color: var(--gray-500); line-height: 1.6; }
    .seo-modern { background: #fff; padding: 100px 0; position: relative; border-top: 1px solid var(--border); }
    .seo-container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
    .seo-header { text-align: center; margin-bottom: 72px; }
    .seo-header h2 { font-size: clamp(28px, 5vw, 42px); font-weight: 900; color: var(--gray-900); letter-spacing: -1px; margin-bottom: 24px; }
    .seo-header p { font-size: clamp(16px, 2.5vw, 20px); color: var(--gray-500); line-height: 1.6; max-width: 760px; margin: 0 auto; }
    .seo-split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; margin-bottom: 80px; text-align: left; }
    .seo-split-content h3 { font-size: 26px; font-weight: 800; color: var(--gray-900); margin-bottom: 24px; letter-spacing: -0.5px; }
    .seo-split-content p { font-size: 16px; color: var(--gray-600); line-height: 1.8; margin-bottom: 20px; }
    .mobile-highlight-box { background: var(--gray-900); border-radius: 24px; padding: 48px; color: white; box-shadow: 0 24px 48px rgba(15,23,42,0.28); position: relative; overflow: hidden; }
    .mobile-highlight-box::after { content: ''; position: absolute; right: -50px; bottom: -50px; width: 200px; height: 200px; border-radius: 50%; background: radial-gradient(circle, rgba(255,255,255,0.15), transparent); }
    .mobile-highlight-box h3 { font-size: 26px; font-weight: 900; color: white; margin-bottom: 20px; }
    .mobile-highlight-box p { font-size: 17px; color: rgba(255,255,255,0.92); line-height: 1.7; margin-bottom: 0; }
    .faq-modern { background: white; border: 1px solid var(--border); border-radius: 24px; padding: 48px; text-align: left; }
    .faq-modern h3 { font-size: 22px; font-weight: 800; margin-bottom: 32px; border-bottom: 2px solid var(--gray-100); padding-bottom: 16px; color: var(--gray-900); }
    .bsc-faq__item { background: #fff; border: 1.5px solid var(--border); border-radius: 14px; padding: 20px 24px; margin-bottom: 12px; cursor: pointer; transition: border-color .2s; }
    .bsc-faq__item:last-child { margin-bottom: 0; }
    .bsc-faq__item[open] { border-color: var(--tool); }
    .bsc-faq__item summary { font-weight: 700; font-size: 16px; color: var(--gray-900); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
    .bsc-faq__item summary::-webkit-details-marker { display: none; }
    .bsc-faq__item summary::after { content: '▾'; font-size: 18px; color: var(--gray-400); transition: transform .2s; flex-shrink: 0; }
    .bsc-faq__item[open] summary::after { transform: rotate(180deg); color: var(--tool); }
    .bsc-faq__item p { margin-top: 12px; color: var(--gray-600); font-size: 15px; line-height: 1.7; }
    .features-strip { background: var(--gray-900); padding: 40px 0; }
    .features-strip__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
    .feature-item { display: flex; align-items: center; gap: 14px; padding: 12px 20px; border-right: 1px solid rgba(255,255,255,0.1); text-align: left; }
    .feature-item:nth-child(4n) { border-right: none; }
    .feature-item__icon { width: 40px; height: 40px; border-radius: 12px; background: rgba(8,145,178,0.22); display: flex; align-items: center; justify-content: center; color: #67e8f9; flex-shrink: 0; }
    .feature-item h4 { font-size: 15px; font-weight: 700; color: white; margin-bottom: 2px; }
    .feature-item p { font-size: 13px; color: rgba(255,255,255,0.6); margin-bottom: 0; line-height: 1.4; }
    .cta-band { background: var(--gray-900); padding: 80px 24px; text-align: center; color: white; position: relative; overflow: hidden; }
    .cta-band h2 { font-size: clamp(28px, 5vw, 42px); font-weight: 900; color: white; margin-bottom: 16px; letter-spacing: -1px; }
    .cta-band p { font-size: 18px; color: rgba(255,255,255,0.92); margin-bottom: 36px; max-width: 600px; margin-left: auto; margin-right: auto; }
    .btn--white { background: white; color: var(--tool-dark); border: none; font-weight: 700; box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
    .btn--white:hover { background: #f8fafc; transform: translateY(-2px); }
    @media (max-width: 1024px) { .features-strip__grid { grid-template-columns: repeat(2, 1fr); } .feature-item:nth-child(2n) { border-right: none; } }
    @media (max-width: 900px) { .steps-grid { grid-template-columns: 1fr; gap: 20px; } .seo-split { grid-template-columns: 1fr; gap: 40px; } .mobile-highlight-box { padding: 32px; } }
    @media (max-width: 640px) { .features-strip__grid { grid-template-columns: 1fr; } .feature-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); } .feature-item:last-child { border-bottom: none; } }