/* ── Reset & Base ─────────────────────────────────────────── */
        *{margin:0;padding:0;box-sizing:border-box}
        body{font-family:'Google Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:#fff;color:#202124;min-height:100vh;display:flex;flex-direction:column;line-height:1.5}

        /* ── Header ───────────────────────────────────────────────── */
        .header{padding:16px 40px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #dadce0}
        .logo{font-size:22px;font-weight:600;color:#1a73e8;text-decoration:none}
        .logo span{color:#5f6368;font-weight:400;font-size:14px;margin-left:6px}
        .header-links a{color:#5f6368;text-decoration:none;font-size:13px;margin-left:18px;transition:color .2s}
        .header-links a:hover{color:#1a73e8}

        /* ── Main Container ───────────────────────────────────────── */
        .main-container{flex:1;display:flex;flex-direction:column;align-items:center;padding:30px 20px;max-width:760px;margin:0 auto;width:100%}

        /* ── Step Indicator ────────────────────────────────────────── */
        .steps-indicator{display:flex;align-items:center;gap:0;margin-bottom:32px;width:100%;max-width:520px}
        .step-dot{width:32px;height:32px;border-radius:50%;background:#e8eaed;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:500;color:#5f6368;transition:all .3s;flex-shrink:0}
        .step-dot.active{background:#1a73e8;color:#fff}
        .step-dot.done{background:#34a853;color:#fff}
        .step-line{flex:1;height:2px;background:#e8eaed;transition:background .3s}
        .step-line.active{background:#1a73e8}
        .step-line.done{background:#34a853}

        /* ── Cards / Sections ─────────────────────────────────────── */
        .step-section{display:none;width:100%;animation:fadeIn .35s ease}
        .step-section.active{display:block}
        @keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

        .card{background:#fff;border:1px solid #dadce0;border-radius:12px;padding:28px;margin-bottom:20px}
        .card h2{font-size:20px;font-weight:500;margin-bottom:4px}
        .card .subtitle{font-size:14px;color:#5f6368;margin-bottom:20px}

        /* ── Input ────────────────────────────────────────────────── */
        .input-wrapper{position:relative;display:flex;align-items:center;background:#fff;border:1px solid #dfe1e5;border-radius:24px;height:48px;box-shadow:0 2px 5px 1px rgba(64,60,67,.12);transition:box-shadow .2s}
        .input-wrapper:hover,.input-wrapper.focused{box-shadow:0 2px 8px 1px rgba(64,60,67,.2);border-color:transparent}
        .domain-input{flex:1;border:none;outline:none;font-size:16px;padding:0 18px;height:100%;border-radius:24px;background:transparent}
        .validation-icon{width:36px;height:36px;margin-right:6px;display:flex;align-items:center;justify-content:center;font-size:18px}
        .btn-identify{background:#1a73e8;color:#fff;border:none;border-radius:0 24px 24px 0;padding:0 20px;font-size:14px;font-weight:600;cursor:pointer;height:100%;white-space:nowrap;transition:background .2s}
        .btn-identify:hover{background:#1557b0}
        .btn-identify:disabled{background:#94bef7;cursor:not-allowed}

        /* ── Buttons ──────────────────────────────────────────────── */
        .btn{display:inline-flex;align-items:center;gap:6px;padding:10px 28px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;border:none;transition:all .2s}
        .btn-primary{background:#1a73e8;color:#fff}
        .btn-primary:hover{background:#1557b0;box-shadow:0 2px 6px rgba(26,115,232,.3)}
        .btn-primary:disabled{background:#c4d7f2;cursor:not-allowed;box-shadow:none}
        .btn-secondary{background:#fff;color:#1a73e8;border:1px solid #dadce0}
        .btn-secondary:hover{background:#f8f9fa}
        .btn-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}

        /* ── Company Info Card (Step 1 Result) ────────────────────── */
        .company-card{border-left:4px solid #1a73e8;padding:18px 22px;background:#f8f9fa;border-radius:0 8px 8px 0;margin:16px 0}
        .company-card h3{font-size:16px;font-weight:500;margin-bottom:6px}
        .company-card .industry-badge{display:inline-block;background:#e8f0fe;color:#1a73e8;padding:3px 12px;border-radius:12px;font-size:12px;font-weight:500;margin-top:6px}

        /* ── Technology Grid (Step 2) ─────────────────────────────── */
        .tech-category{margin-bottom:22px}
        .tech-category h3{font-size:15px;font-weight:500;color:#202124;margin-bottom:10px;padding-bottom:6px;border-bottom:1px solid #e8eaed}
        .tech-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px}
        .tech-chip{display:flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid #dadce0;border-radius:8px;cursor:pointer;font-size:13px;transition:all .2s;user-select:none}
        .tech-chip:hover{border-color:#1a73e8;background:#f0f6ff}
        .tech-chip.selected{border-color:#1a73e8;background:#e8f0fe;color:#1a73e8;font-weight:500}
        .tech-chip.likely{border-color:#fbbc04;background:#fef7e0}
        .tech-chip.likely.selected{border-color:#1a73e8;background:#e8f0fe;color:#1a73e8}
        .tech-checkbox{width:16px;height:16px;border-radius:3px;border:2px solid #dadce0;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0}
        .tech-chip.selected .tech-checkbox{background:#1a73e8;border-color:#1a73e8;color:#fff}

        /* ── Free Text ────────────────────────────────────────────── */
        .free-text{width:100%;min-height:100px;border:1px solid #dadce0;border-radius:8px;padding:12px;font-size:14px;font-family:inherit;resize:vertical;outline:none;transition:border-color .2s}
        .free-text:focus{border-color:#1a73e8}

        /* ── Use Case Results (Step 3) ────────────────────────────── */
        .usecase-card{border:1px solid #dadce0;border-radius:12px;padding:24px;margin-bottom:16px;transition:box-shadow .2s}
        .usecase-card:hover{box-shadow:0 2px 12px rgba(0,0,0,.08)}
        .uc-header{display:flex;align-items:flex-start;gap:14px;margin-bottom:12px}
        .uc-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
        .uc-icon.money{background:#e6f4ea;color:#137333}
        .uc-icon.time{background:#e8f0fe;color:#1a73e8}
        .uc-icon.risk{background:#fce8e6;color:#c5221f}
        .uc-title{font-size:17px;font-weight:500}
        .uc-badge{display:inline-block;padding:2px 10px;border-radius:10px;font-size:11px;font-weight:500;margin-top:4px}
        .uc-badge.money{background:#e6f4ea;color:#137333}
        .uc-badge.time{background:#e8f0fe;color:#1a73e8}
        .uc-badge.risk{background:#fce8e6;color:#c5221f}
        .uc-description{font-size:14px;color:#3c4043;line-height:1.6;margin-bottom:12px}
        .uc-detail{font-size:13px;color:#5f6368;margin-bottom:6px}
        .uc-detail strong{color:#202124}
        .uc-impact{background:#f8f9fa;border-radius:8px;padding:12px;margin-top:10px;font-size:13px;line-height:1.7}
        .uc-leverages{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px}
        .uc-leverages .tag{background:#e8eaed;padding:2px 8px;border-radius:4px;font-size:11px;color:#3c4043}

        /* ── Spinner / Loading ────────────────────────────────────── */
        .spinner{display:inline-block;width:18px;height:18px;border:2px solid #dadce0;border-top-color:#1a73e8;border-radius:50%;animation:spin .8s linear infinite}
        @keyframes spin{to{transform:rotate(360deg)}}
        .loading-state{display:flex;align-items:center;gap:10px;padding:20px;color:#5f6368;font-size:14px}

        /* ── Diagram Tabs & Display ───────────────────────────────── */
        .diagram-section{margin-top:16px;border-top:1px solid #e8eaed;padding-top:14px}
        .diagram-tabs{display:flex;gap:0;margin-bottom:12px}
        .diagram-tab{flex:1;padding:10px 16px;font-size:13px;font-weight:500;cursor:pointer;border:1px solid #dadce0;background:#fff;color:#5f6368;text-align:center;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:6px}
        .diagram-tab:first-child{border-radius:8px 0 0 8px}
        .diagram-tab:last-child{border-radius:0 8px 8px 0}
        .diagram-tab:not(:first-child){border-left:none}
        .diagram-tab:hover{background:#f8f9fa;color:#202124}
        .diagram-tab.active{background:#1a73e8;color:#fff;border-color:#1a73e8}
        .diagram-tab.active + .diagram-tab{border-left-color:#1a73e8}
        .diagram-tab .tab-icon{font-size:14px}
        .diagram-display{background:#1e1e1e;color:#d4d4d4;border-radius:8px;padding:16px;font-family:'Cascadia Code','Fira Code','Courier New',monospace;font-size:11.5px;line-height:1.45;white-space:pre;overflow-x:auto;position:relative;min-height:60px;max-height:600px;overflow-y:auto}
        .diagram-display.loading{display:flex;align-items:center;justify-content:center;min-height:80px;white-space:normal}
        .diagram-display .copy-btn{position:absolute;top:8px;right:8px;background:rgba(255,255,255,.12);color:#d4d4d4;border:none;border-radius:4px;padding:4px 10px;font-size:11px;cursor:pointer;opacity:0;transition:opacity .2s}
        .diagram-display:hover .copy-btn{opacity:1}
        .diagram-display .copy-btn:hover{background:rgba(255,255,255,.22)}
        .diagram-workflow{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:8px;font-size:11px;color:#5f6368}
        .diagram-workflow .wf-step{background:#e8f0fe;color:#1a73e8;padding:2px 10px;border-radius:10px;font-weight:500}
        .diagram-workflow .wf-arrow{color:#dadce0}

        /* ── Privacy Banner ───────────────────────────────────────── */
        .privacy-banner{background:#f8f9fa;border:1px solid #e8eaed;border-radius:8px;padding:12px 18px;font-size:12px;color:#5f6368;display:flex;align-items:center;gap:10px;margin-bottom:20px}
        .privacy-banner .icon{font-size:18px}

        /* ── Footer ───────────────────────────────────────────────── */
        .footer{padding:16px 40px;border-top:1px solid #dadce0;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#70757a;flex-wrap:wrap;gap:8px}
        .footer a{color:#70757a;text-decoration:none}
        .footer a:hover{color:#202124}

        /* ── Responsive ───────────────────────────────────────────── */
        @media(max-width:640px){
            .header{padding:12px 16px}
            .main-container{padding:16px}
            .card{padding:18px}
            .tech-grid{grid-template-columns:1fr 1fr}
            .btn-actions{flex-direction:column}
            .btn{width:100%;justify-content:center}
        }