/* * 1. DESIGN STYLE & GLOBAL STYLES */

        :root {
            --color-primary: #1e1e2f;       /* Dark text/primary color */
            --color-accent: #4a7afe;        /* Blue accent color */
            --color-background-light: #f4f6fb; /* Main light background */
            --color-white: #fff;            /* White */
            --color-stats-bg: #f7f9ff;      /* Lighter background for stats */
            --shadow-soft: 0 8px 30px rgba(30, 30, 47, 0.08); /* Soft shadow */
            --shadow-card: 0 15px 40px rgba(74, 122, 254, 0.15); /* Accent shadow */
            --border-radius: 12px;
            --transition-speed: 0.3s;
        }

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

        body {
            font-family: 'Poppins', sans-serif;
            background-color: var(--color-background-light);
            color: var(--color-primary);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        /* * 2. NAVBAR (Modified Alignment & Links) */
        .navbar {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: var(--color-white);
            box-shadow: var(--shadow-soft);
            padding: 15px 30px;
            display: flex;
            justify-content: space-between;
            align-items: center; /* Ensures vertical alignment */
            opacity: 0; 
            animation: fadeIn 0.8s ease-out forwards;
        }

        .logo {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-speed);
        }

        .logo span {
            color: var(--color-accent);
        }

        .nav-links a {
            color: var(--color-primary);
            text-decoration: none;
            font-weight: 500;
            margin-left: 25px;
            padding: 5px 0;
            position: relative;
            transition: color var(--transition-speed);
        }

        .nav-links a:hover {
            color: var(--color-accent);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background-color: var(--color-accent);
            transition: width var(--transition-speed);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        /* * MAIN CONTENT & CONTAINER */
        .main-content {
            flex-grow: 1;
            padding: 40px 20px 60px;
            display: flex;
            justify-content: center;
            align-items: flex-start;
        }

        .tool-container {
            width: 100%;
            max-width: 900px;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInSlideUp 0.8s ease-out 0.2s forwards;
        }

        .tool-header {
            text-align: center;
            margin-bottom: 30px;
            animation: fadeIn 0.8s ease-out 0.4s forwards;
            opacity: 0;
        }

        .tool-header h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
        }

        .tool-header p {
            font-size: 1.1rem;
            color: rgba(30, 30, 47, 0.7);
        }

        /* * 3. MAIN TOOL UI */
        .tool-card {
            background-color: var(--color-white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-soft);
            padding: 30px;
            transition: all var(--transition-speed);
        }

        #text-input {
            width: 100%;
            height: 250px;
            padding: 20px;
            font-family: inherit;
            font-size: 1rem;
            line-height: 1.5;
            border: 2px solid var(--color-background-light);
            border-radius: var(--border-radius);
            resize: vertical;
            outline: none;
            color: var(--color-primary);
            transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
            
            &::placeholder {
                color: #b0b0c2;
            }
        }

        #text-input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 4px rgba(74, 122, 254, 0.2);
        }

        /* * 5. STATS SECTION */
        .stats-grid {
            margin-top: 30px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
        }

        .stat-box {
            background-color: var(--color-stats-bg);
            border-radius: var(--border-radius);
            padding: 25px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: transform 0.4s ease, box-shadow 0.4s ease;
            transform: scale(0.95);
            opacity: 0;
        }

        .stat-box:nth-child(1) { animation: fadeInSlideUp 0.6s ease-out 0.6s forwards; }
        .stat-box:nth-child(2) { animation: fadeInSlideUp 0.6s ease-out 0.7s forwards; }
        .stat-box:nth-child(3) { animation: fadeInSlideUp 0.6s ease-out 0.8s forwards; }
        .stat-box:nth-child(4) { animation: fadeInSlideUp 0.6s ease-out 0.9s forwards; }

        .stat-box:hover {
            transform: translateY(-5px) scale(1);
            box-shadow: 0 20px 50px rgba(74, 122, 254, 0.25);
        }

        .stat-value {
            font-size: 3rem;
            font-weight: 700;
            color: var(--color-accent);
            margin-bottom: 5px;
        }

        .stat-title {
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-primary);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .footer {
            text-align: center;
            padding: 20px;
            font-size: 0.9rem;
            color: rgba(30, 30, 47, 0.6);
            border-top: 1px solid rgba(30, 30, 47, 0.05);
            margin-top: 40px;
        }

        /* * Animations */
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        @keyframes fadeInSlideUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* * Responsiveness */
        @media (max-width: 768px) {
            .navbar {
                padding: 15px 20px;
            }

            .logo {
                font-size: 1.4rem;
            }


            .main-content {
                padding: 30px 15px 50px;
            }

            .tool-header h1 {
                font-size: 2rem;
            }
            
            .tool-header p {
                font-size: 0.95rem;
            }

            .tool-card {
                padding: 20px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
            }
            
            .stat-box {
                padding: 20px;
            }

            .stat-value {
                font-size: 2.5rem;
            }
        }