:root {
            --bg-dark: #0f172a;
            --card-bg: #1e293b;
            --primary: #f59e0b; /* Amber/Gold */
            --secondary: #d97706;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
        }

        body {
            background-color: var(--bg-dark);
            color: var(--text-main);
            font-family: 'Segoe UI', system-ui, sans-serif;
            margin: 0;
            padding: 0;
            min-height: 100vh;
        }

        /* --- NAVIGATION --- */
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 40px;
            background: rgba(30, 41, 59, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #334155;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links a {
            background: transparent;
            border: 1px solid #334155;
            color: var(--text-muted);
            padding: 8px 16px;
            border-radius: 8px;
            margin-left: 10px;
            cursor: pointer;
            transition: all 0.3s;
            text-decoration: none;
            display: inline-block;
            font-size: 0.9rem;
        }

        .nav-links a:hover { background: #334155; color: white; border-color: var(--primary); }
        .nav-links a.active { background: var(--primary); color: white; border: none; }

        @media (max-width: 600px) {
            .navbar { flex-direction: column; gap: 15px; padding: 15px 20px; }
            .nav-links { width: 100%; display: flex; justify-content: center; gap: 10px; }
            .nav-links a { margin: 0; flex: 1; text-align: center; }
        }

        /* --- MAIN LAYOUT --- */
        .main-container {
            display: grid;
            grid-template-columns: 1fr 1fr; 
            gap: 2rem;
            max-width: 1000px;
            margin: 40px auto;
            padding: 0 20px;
        }

        @media (max-width: 800px) {
            .main-container { grid-template-columns: 1fr; }
        }

        /* --- LEFT COLUMN: INPUT --- */
        .input-card {
            background: var(--card-bg);
            border-radius: 20px;
            padding: 2rem;
            border: 1px solid #334155;
            box-shadow: 0 10px 40px rgba(0,0,0,0.2);
            height: fit-content;
            /* Sticky on Desktop */
            position: sticky;
            top: 100px;
        }
        
        /* Mobile Fix: Disable sticky on small screens so it doesn't block view */
        @media (max-width: 800px) {
            .input-card { position: static; } 
        }

        textarea {
            width: 100%;
            background: #0f172a;
            border: 2px solid #334155;
            border-radius: 12px;
            padding: 15px;
            color: white;
            font-size: 1.1rem;
            height: 120px;
            box-sizing: border-box;
            outline: none;
            margin: 15px 0;
            resize: none;
            transition: border-color 0.3s;
        }
        textarea:focus { border-color: var(--primary); }

        /* --- NEW: INFO CARDS (How it helps) --- */
        .info-card {
            display: flex; gap: 15px; margin-top: 15px;
            background: rgba(255,255,255,0.03); padding: 15px; border-radius: 12px;
            border: 1px solid rgba(255,255,255,0.05);
        }
        .info-icon { 
            font-size: 1.5rem; background: #334155; width: 40px; height: 40px; 
            display: flex; align-items: center; justify-content: center; border-radius: 8px; flex-shrink: 0; 
        }
        .info-content h4 { margin: 0 0 5px 0; font-size: 0.95rem; color: #fff; }
        .info-content p { margin: 0; font-size: 0.85rem; color: #94a3b8; line-height: 1.4; }

        /* --- RIGHT COLUMN: FONTS LIST --- */
        .fonts-list {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .font-card {
            background: #252e42;
            padding: 15px 20px;
            border-radius: 12px;
            border: 1px solid #334155;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: all 0.2s;
            position: relative;
        }

        .font-card:hover {
            background: #334155;
            transform: translateX(5px);
            border-color: var(--primary);
        }

        .font-preview {
            font-size: 1.1rem;
            color: white;
            word-break: break-word;
            margin-right: 15px;
        }

        .copy-btn {
            background: rgba(245, 158, 11, 0.1);
            color: var(--primary);
            border: 1px solid var(--primary);
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 0.8rem;
            font-weight: bold;
            white-space: nowrap;
        }

        /* Toast Notification */
        .toast {
            position: fixed;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: white;
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: bold;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            opacity: 0;
            transition: opacity 0.3s;
            pointer-events: none;
            z-index: 1000;
        }
        .toast.show { opacity: 1; }