:root {
            --primary-color: #1e293b;
            --button-bg: #1e293b;
            --button-hover: #64748b;
            --accent-color: #10b981;
            --background-color-primary: #f1f5f9;
            --background-color: #1e293b; /* Coerente com style.css */
            --surface-color: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #64748b;
            --border-color: #cbd5e1;
            --shadow-lg: 0 10px 30px rgba(0,0,0,0.25);
            --border-radius: 12px;
            --input-radius: 8px;
            --transition: .3s;
        }

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

        body {
            font-family: 'Inter', Arial, Helvetica, sans-serif;
            background-color: #f1f5f9;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .login-container {
            background: var(--surface-color);
            width: 100%;
            max-width: 400px;
            padding: 40px;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-lg);
            animation: fadeIn 0.6s ease-out;
        }

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

        .login-header {
            text-align: center;
            margin-bottom: 35px;
        }

        .login-header i {
            font-size: 3rem;
            color: var(--accent-color);
            margin-bottom: 15px;
        }

        .login-header h1 {
            font-size: 1.75rem;
            color: var(--text-primary);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .login-header p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .form-group {
            margin-bottom: 20px;
            position: relative;
        }

        .form-group i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            font-size: 1.1rem;
        }

        input {
            width: 100%;
            padding: 14px 14px 14px 45px;
            border: 1px solid var(--border-color);
            border-radius: var(--input-radius);
            font-size: 1rem;
            color: var(--text-primary);
            transition: var(--transition);
            outline: none;
        }

        input:focus {
            border-color: var(--button-bg);
            box-shadow: 0 0 0 3px rgba(73, 101, 146, 0.1);
        }

        button {
            width: 100%;
            padding: 14px;
            background: var(--button-bg);
            color: white;
            border: none;
            border-radius: var(--input-radius);
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: var(--transition);
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
        }

        button:hover {
            background: var(--button-hover);
            transform: translateY(-1px);
        }

        button:active {
            transform: translateY(0);
        }

        #mensagem {
            margin-top: 20px;
            text-align: center;
            font-size: 0.9rem;
            font-weight: 600;
            min-height: 20px;
        }

        .msg-erro { color: #dc2626; }
        .msg-sucesso { color: var(--accent-color); }

        .footer-links {
            margin-top: 30px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .footer-links a {
            color: var(--button-bg);
            text-decoration: none;
            font-weight: 600;
        }

        .footer-links a:hover {
            text-decoration: underline;
        }

        /* Responsividade */
        @media (max-width: 480px) {
            .login-container {
                padding: 30px 20px;
            }
            
            .login-header h1 {
                font-size: 1.5rem;
            }
        }
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