:root {
            --bg-color: #f9fafb;
            --surface: #ffffff;
            --text-main: #1f2937;
            --text-muted: #6b7280;
            --border: #e5e7eb;
            --teal: #14b8a6;
            --orange: #f97316;
            --pink: #ec4899;
            --gradient-accent: linear-gradient(135deg, var(--teal), var(--orange), var(--pink));
            --radius: 16px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            -webkit-font-smoothing: antialiased;
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-main);
            display: flex;
            flex-direction: column;
            align-items: center;
            min-height: 100vh;
        }

        /* Navbar */
        header {
            width: 100%;
            max-width: 600px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.5px;
        }

        .header-actions button {
            background: none;
            border: none;
            color: var(--text-muted);
            font-weight: 600;
            cursor: pointer;
            margin-left: 15px;
            transition: color 0.2s;
            font-size: 16px;
        }

        .header-actions button:hover {
            color: var(--text-main);
        }

        /* Main Container */
        main {
            width: 100%;
            max-width: 600px;
            padding: 0 20px 40px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        /* Persistent Tip */
        .persistent-tip {
            background: #fff0f6;
            color: #be185d;
            padding: 10px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
            align-self: flex-start;
            border: 1px solid #fbcfe8;
            box-shadow: 0 2px 4px rgba(0,0,0,0.02);
        }

        /* Cards */
        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
        }

        .scenario-text {
            font-size: 1.1rem;
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .binary-trap {
            background: #f3f4f6;
            border-left: 4px solid var(--orange);
            padding: 16px;
            border-radius: 0 var(--radius) var(--radius) 0;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .binary-trap span {
            background: var(--orange);
            color: white;
            padding: 2px 8px;
            border-radius: 12px;
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        /* Inputs */
        .input-group {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 24px;
        }

        .option-wrapper {
            position: relative;
        }

        /* 16px font-size prevents iOS zoom on focus */
        textarea, input {
            font-size: 16px !important; 
        }

        textarea {
            width: 100%;
            padding: 16px;
            border: 2px solid var(--border);
            border-radius: 12px;
            resize: none;
            outline: none;
            transition: all 0.2s;
            height: 100px;
            color: var(--text-main);
        }

        textarea:focus {
            border-color: var(--teal);
        }

        textarea:disabled {
            background-color: #f9fafb;
            color: var(--text-muted);
            border-color: var(--border);
            opacity: 0.7;
        }

        .char-count {
            position: absolute;
            bottom: 12px;
            right: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .btn-add {
            background: none;
            border: 2px dashed var(--border);
            color: var(--text-muted);
            padding: 12px;
            border-radius: 12px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.2s;
            width: 100%;
            margin-top: 8px;
        }

        .btn-add:hover {
            border-color: var(--teal);
            color: var(--teal);
        }

        /* Main Call to Action */
        .action-area {
            margin-top: 30px;
            border-top: 1px solid var(--border);
            padding-top: 20px;
        }

        .btn-submit {
            color: white;
            border: none;
            padding: 16px;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 700;
            cursor: pointer;
            width: 100%;
            transition: transform 0.1s;
            
            /* Playful animated gradient */
            background: linear-gradient(270deg, var(--teal), var(--orange), var(--pink), var(--teal));
            background-size: 300% 300%;
            animation: gradient-shift 4s ease infinite;
            box-shadow: 0 4px 15px rgba(249, 115, 22, 0.2);
        }

        @keyframes gradient-shift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .btn-submit:active {
            transform: scale(0.98);
        }

        /* Loading State (Inline) */
        .loading-container {
            display: none; /* Hidden default */
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 30px 0 10px;
            text-align: center;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .timer {
            font-size: 2.5rem;
            font-weight: 800;
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 10px;
        }

        .micro-tip {
            font-size: 1rem;
            color: var(--text-muted);
            min-height: 40px;
            animation: pulse 3.5s infinite;
        }

        @keyframes pulse {
            0% { opacity: 0.5; }
            50% { opacity: 1; }
            100% { opacity: 0.5; }
        }

        /* Results State */
        .results-container {
            display: none;
            margin-top: 10px;
        }

        .result-item {
            border: 2px solid transparent;
            background: linear-gradient(var(--surface), var(--surface)) padding-box, 
                        var(--gradient-accent) border-box;
            border-radius: var(--radius);
            padding: 24px;
            margin-bottom: 20px;
            animation: fadeIn 0.4s ease;
        }

        .result-title {
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            font-size: 0.8rem;
            letter-spacing: 1px;
            margin-bottom: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .overall-score-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }

        .overall-score {
            font-size: 3.5rem;
            font-weight: 800;
            line-height: 1;
            background: var(--gradient-accent);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .dimensions {
            display: flex;
            justify-content: space-between;
            background: #f9fafb;
            border-radius: 12px;
            padding: 16px;
            margin-bottom: 20px;
        }

        .dimension {
            display: flex;
            flex-direction: column;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            text-align: center;
        }

        .dimension-label {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .info-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 14px;
            height: 14px;
            background: #e5e7eb;
            color: #6b7280;
            border-radius: 50%;
            font-size: 10px;
            font-weight: bold;
            cursor: pointer;
        }

        .dimension-score {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-main);
            margin-top: 4px;
        }

        .rationale {
            font-style: italic;
            color: var(--text-main);
            line-height: 1.5;
        }

        /* Modals */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.5);
            align-items: center;
            justify-content: center;
            z-index: 100;
        }

        .modal {
            background: var(--surface);
            padding: 30px;
            border-radius: var(--radius);
            width: 90%;
            max-width: 400px;
        }

        .modal h2 { margin-bottom: 15px; }
        .modal h3 { margin-top: 15px; margin-bottom: 5px; font-size: 1rem; color: var(--text-main); }
        
        .modal input {
            width: 100%;
            padding: 12px;
            border: 1px solid var(--border);
            border-radius: 8px;
            margin-bottom: 10px;
        }

        .modal-btn {
            background: var(--text-main);
            color: white;
            border: none;
            padding: 12px 20px;
            border-radius: 8px;
            cursor: pointer;
            width: 100%;
            font-size: 16px;
        }

        .close-modal {
            background: none;
            border: none;
            color: var(--text-muted);
            margin-top: 15px;
            width: 100%;
            cursor: pointer;
            font-size: 16px;
        }