templates/client.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>EE Secure Client</title>
    <link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap" rel="stylesheet">
    <style>
        :root {
            --bg: #0d0f12;
            --surface: #161a20;
            --border: #252b34;
            --border-hover: #3a4452;
            --accent: #00d4aa;
            --accent-dim: rgba(0, 212, 170, 0.12);
            --text: #e2e8f0;
            --text-muted: #64748b;
            --text-dim: #94a3b8;
            --danger: #f87171;
            --danger-dim: rgba(248, 113, 113, 0.1);
            --mono: 'IBM Plex Mono', monospace;
            --sans: 'IBM Plex Sans', sans-serif;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }

        body {
            background: var(--bg);
            color: var(--text);
            font-family: var(--sans);
            min-height: 100vh;
            padding: 48px 24px;
        }

        .page {
            max-width: 620px;
            margin: 0 auto;
        }

        /* Header */
        .header {
            margin-bottom: 40px;
        }
        .header-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--accent-dim);
            border: 1px solid rgba(0,212,170,0.25);
            color: var(--accent);
            font-family: var(--mono);
            font-size: 11px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            padding: 5px 12px;
            border-radius: 4px;
            margin-bottom: 16px;
        }
        .lock-dot {
            width: 7px; height: 7px;
            background: var(--accent);
            border-radius: 50%;
            animation: blink 2.5s ease-in-out infinite;
        }
        @keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

        h1 {
            font-size: 26px;
            font-weight: 600;
            letter-spacing: -0.02em;
            color: var(--text);
            margin-bottom: 6px;
        }
        .subtitle {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* Card */
        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 28px;
            margin-bottom: 20px;
        }

        .section-label {
            font-family: var(--mono);
            font-size: 10px;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--text-muted);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border);
        }

        /* Form */
        .field { margin-bottom: 20px; }
        .field:last-child { margin-bottom: 0; }

        label {
            display: block;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-dim);
            margin-bottom: 7px;
        }
        label span {
            font-family: var(--mono);
            font-size: 11px;
            color: var(--text-muted);
            font-weight: 400;
        }

        input, textarea {
            width: 100%;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 10px 14px;
            color: var(--text);
            font-family: var(--sans);
            font-size: 14px;
            transition: border-color 0.15s;
            outline: none;
            -webkit-appearance: none;
        }
        input:focus, textarea:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(0,212,170,0.08);
        }
        input::placeholder, textarea::placeholder {
            color: var(--text-muted);
        }
        textarea {
            resize: vertical;
            min-height: 120px;
            line-height: 1.6;
            font-family: var(--mono);
            font-size: 13px;
        }

        /* Inline row */
        .field-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        /* Submit */
        .btn {
            width: 100%;
            padding: 13px;
            background: var(--accent);
            color: #0d0f12;
            border: none;
            border-radius: 6px;
            font-family: var(--sans);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            letter-spacing: 0.01em;
            transition: opacity 0.15s, transform 0.1s;
            margin-top: 4px;
        }
        .btn:hover { opacity: 0.88; }
        .btn:active { transform: scale(0.99); }
        .btn:disabled { opacity: 0.4; cursor: not-allowed; }

        /* Result */
        .result-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
        }
        .result-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            border-bottom: 1px solid var(--border);
            background: rgba(0,212,170,0.04);
        }
        .result-header-label {
            font-family: var(--mono);
            font-size: 11px;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
        }
        .result-body {
            padding: 20px;
            font-family: var(--mono);
            font-size: 13px;
            line-height: 1.7;
            color: var(--text);
            white-space: pre-wrap;
            word-break: break-word;
        }

        /* Error */
        .error-card {
            background: var(--danger-dim);
            border: 1px solid rgba(248,113,113,0.25);
            border-radius: 8px;
            padding: 14px 18px;
            font-size: 13px;
            color: var(--danger);
            font-family: var(--mono);
            line-height: 1.6;
            word-break: break-all;
        }
        .error-card::before {
            content: "ERROR — ";
            font-weight: 500;
        }

        /* Loading state */
        .btn.loading {
            position: relative;
            color: transparent;
        }
        .btn.loading::after {
            content: '';
            position: absolute;
            inset: 0;
            margin: auto;
            width: 18px; height: 18px;
            border: 2px solid rgba(13,15,18,0.3);
            border-top-color: #0d0f12;
            border-radius: 50%;
            animation: spin 0.7s linear infinite;
        }
        @keyframes spin { to { transform: rotate(360deg); } }

        .help-text {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 5px;
        }
    </style>
</head>
<body>
<div class="page">

    <div class="header">
        <div class="header-badge">
            <span class="lock-dot"></span>
            End-to-end encrypted
        </div>
        <h1>Equivariant Encryption Client</h1>
        <p class="subtitle">Prompts are encrypted locally before leaving this Space — the inference server only ever sees scrambled embeddings.</p>
    </div>

    <form method="POST" id="mainForm">

        <div class="card">
            <div class="section-label">Connection</div>

            <div class="field">
                <label>Server Space URL</label>
                <input type="url" name="server_url"
                    placeholder="https://your-ee-server.hf.space"
                    value="https://broadfield-dev-equivariant-encryption-server.hf.space"
                    required readonly>
            </div>

            <div class="field">
                <label>EE Model <span>— from Hugging Face Hub</span></label>
                <input type="text" name="ee_model_name"
                    placeholder="username/model-ee"
                    value="broadfield-dev/Qwen3-0.6B-dp-ee"
                    required readonly>
            </div>
        </div>

        <div class="card">
            <div class="section-label">Encryption Key</div>

            <div class="field">
                <label>Secret Seed <span>— never leaves this client</span></label>
                <input type="number" name="ee_seed"
                    value="{{ form.get('ee_seed', '424242') }}"
                    required>
                <p class="help-text">Use the same seed that was used when transforming the model.</p>
            </div>
        </div>

        <div class="card">
            <div class="section-label">Prompt</div>

            <div class="field">
                <label>Your message</label>
                <textarea name="prompt" required
                    placeholder="Enter your prompt here...">{{ form.get('prompt', '') }}</textarea>
            </div>

            <div class="field">
                <label>Max new tokens</label>
                <input type="number" name="max_tokens"
                    value="{{ form.get('max_tokens', '256') }}"
                    min="1" max="2048">
            </div>
        </div>

        <button type="submit" class="btn" id="submitBtn">
            Encrypt &amp; Send →
        </button>

    </form>

    {% if error %}
    <div style="margin-top:20px">
        <div class="error-card">{{ error }}</div>
    </div>
    {% endif %}

    {% if result %}
    <div style="margin-top:20px">
        <div class="result-card">
            <div class="result-header">
                <span class="result-header-label">Server response</span>
                <span style="font-size:12px; color: var(--text-muted); font-family: var(--mono);">decrypted locally</span>
            </div>
            <div class="result-body">{{ result }}</div>
        </div>
    </div>
    {% endif %}

</div>

<script>
    document.getElementById('mainForm').addEventListener('submit', function() {
        const btn = document.getElementById('submitBtn');
        btn.classList.add('loading');
        btn.disabled = true;
    });
</script>
</body>
</html>