:root {
            --bg: #0f172a; --panel: #1e293b; --accent: #38bdf8; 
            --action: #22c55e; --text: #f8fafc; --text-muted: #94a3b8;
            --border: #334155; --terminal: #000000; --warn: #f59e0b; --critical: #ef4444;
        }

        body { 
            font-family: 'Inter', sans-serif; background-color: var(--bg); color: var(--text); 
            display: flex; justify-content: center; align-items: center; height: 100vh; margin: 0; 
            overflow: hidden; touch-action: none;
        }

        .app-container {
            width: 450px; height: 720px; background: var(--panel); border: 1px solid var(--border); border-radius: 16px;
            display: flex; flex-direction: column; overflow: hidden; position: relative; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
        }

        .view { padding: 30px; display: none; flex-direction: column; flex: 1; overflow-y: auto; overflow-x: hidden; }
        .view.active { display: flex; }

        .result-box { 
            background: var(--terminal); border: 1px solid var(--accent); color: var(--action); 
            padding: 15px; font-family: 'JetBrains Mono', monospace; border-radius: 8px; 
            margin-bottom: 15px; font-size: 0.82em; height: 100px; 
            overflow-y: auto; overflow-x: hidden; text-align: left;
        }

        .wrap-text { white-space: pre-wrap; word-wrap: break-word; word-break: break-all; }
        input, textarea, .result-box { user-select: text !important; }

        .navbar { padding: 20px; background: rgba(15, 23, 42, 0.5); border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; flex-shrink: 0; }
        .nav-brand { font-family: 'JetBrains Mono', monospace; font-weight: 700; color: var(--accent); font-size: 0.9em; }

        .lang-select { background: var(--bg); color: var(--accent); border: 1px solid var(--border); border-radius: 4px; font-size: 0.75em; padding: 4px; font-family: 'JetBrains Mono'; outline: none; cursor: pointer; }
        .menu-btn { background: var(--accent); border: none; color: var(--bg); padding: 6px 12px; border-radius: 4px; cursor: pointer; font-weight: 800; font-size: 0.8em; }

        h2 { font-family: 'JetBrains Mono', monospace; font-size: 1.2em; margin: 0 0 10px 0; border-left: 4px solid var(--accent); padding-left: 10px; }
        .description { font-size: 0.82em; color: var(--text-muted); margin-bottom: 25px; line-height: 1.4; height: 45px; }

        .legal-content { font-size: 0.75em; color: var(--text-muted); line-height: 1.6; text-align: left; user-select: text !important; }
        .legal-content h3 { font-size: 0.9em; color: var(--accent); margin: 20px 0 10px 0; text-transform: uppercase; border-bottom: 1px solid var(--border); padding-bottom: 5px; }
        .legal-content p { margin-bottom: 10px; }
        .legal-content b { color: var(--text); }

        .hash-controls { display: flex; flex-direction: column; gap: 10px; margin: 15px 0; }
        .hash-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
        .hash-btn { background: var(--border); color: var(--text); border: 1px solid transparent; padding: 12px; border-radius: 6px; font-family: 'JetBrains Mono'; font-size: 0.75em; cursor: pointer; transition: 0.2s; }
        
        /* HOVER EFFECTS */
        .hash-btn:hover, .btn-primary:hover, .btn-secondary:hover, .small-btn:hover { 
            border-color: var(--accent); 
            background: rgba(56, 189, 248, 0.1); 
            filter: brightness(1.1);
        }

        .hash-btn.full { width: 100%; border-color: var(--accent); color: var(--accent); font-weight: bold; }
        .hash-btn.clear { color: var(--critical); border-color: rgba(239, 68, 68, 0.3); }

        .checker-controls { display: flex; gap: 10px; margin-bottom: 15px; }
        .small-btn { flex: 1; padding: 8px; background: var(--border); color: var(--text); border: none; border-radius: 4px; font-family: 'JetBrains Mono'; font-size: 0.7em; cursor: pointer; }

        .meter-bg { height: 6px; background: var(--border); border-radius: 3px; margin-bottom: 10px; overflow: hidden; }
        #s-bar { height: 100%; width: 0%; transition: 0.4s ease; }

        .tips-area { background: rgba(0,0,0,0.2); padding: 12px; border-radius: 8px; flex: 1; min-height: 100px; overflow-y: auto; font-size: 0.72em; border: 1px solid var(--border); }
        .tip { margin-bottom: 6px; display: flex; align-items: center; gap: 8px; color: var(--text-muted); }
        .tip.active { color: var(--action); font-weight: 600; }

        .len-controls { display: flex; align-items: center; gap: 15px; margin-bottom: 10px; }
        .manual-input { width: 65px; background: var(--bg); border: 1px solid var(--accent); color: var(--accent); padding: 5px; border-radius: 4px; font-family: 'JetBrains Mono'; font-weight: bold; text-align: center; font-size: 0.9em; outline: none; }

        .settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 20px; min-height: 105px; }
        .setting-item { background: rgba(255,255,255,0.03); border: 1px solid var(--border); padding: 10px; border-radius: 6px; display: flex; align-items: center; font-size: 0.72em; cursor: pointer; }
        .setting-item input { margin-right: 10px; accent-color: var(--accent); flex-shrink: 0; }

        .btn-primary { background: var(--action); color: var(--bg); border: none; padding: 14px; border-radius: 8px; font-weight: 700; cursor: pointer; width: 100%; font-family: 'JetBrains Mono'; text-transform: uppercase; transition: 0.2s; }
        .btn-secondary { background: transparent; color: var(--text-muted); border: 1px solid var(--border); padding: 10px; border-radius: 8px; cursor: pointer; width: 100%; margin-top: 10px; font-size: 0.85em; transition: 0.2s; }

        /* SUCCESS STATE FOR COPY BUTTONS */
        .copy-success {
            background: var(--action) !important;
            color: var(--bg) !important;
            border-color: var(--action) !important;
            font-weight: bold;
        }

        .menu-overlay { position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: var(--bg); z-index: 1000; transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1); display: flex; flex-direction: column; justify-content: center; padding: 40px; box-sizing: border-box; }
        .menu-overlay.active { left: 0; }
        .menu-item { padding: 12px; font-family: 'JetBrains Mono'; font-size: 1.0em; color: var(--text-muted); cursor: pointer; border-bottom: 1px solid var(--border); }

        .p-input-field { background: var(--bg); border: 1px solid var(--border); color: var(--text); padding: 12px; border-radius: 6px; width: 100%; box-sizing: border-box; font-family: 'JetBrains Mono'; margin-bottom: 15px; outline: none; }

        input[type="range"] { width: 100%; margin-bottom: 25px; accent-color: var(--accent); cursor: pointer; }
        textarea { background: var(--bg); border: 1px solid var(--border); color: var(--text); padding: 12px; border-radius: 6px; width: 100%; box-sizing: border-box; font-family: 'JetBrains Mono'; outline: none; resize: none; }