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

body {
    font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #061f57 0%, #0b347f 50%, #1769ff 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
    animation: fadeIn 0.6s ease;
}

.login-box {
    background: #ffffff;
    border-radius: 20px;
    padding: 40px 35px;
    box-shadow: 0 20px 60px rgba(6, 31, 87, 0.4);
    transition: transform 0.3s ease;
}

.login-box:hover {
    transform: translateY(-2px);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.login-header h1 {
    font-size: 26px;
    color: #061f57;
    margin: 0;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.login-header p {
    color: #6d7892;
    font-size: 14px;
    margin-top: 5px;
}

.login-message {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    display: none;
    animation: slideDown 0.3s ease;
}

.login-message.error {
    display: block;
    background: #fee9e9;
    color: #c0392b;
    border: 1px solid #f5c6c6;
}

.login-message.success {
    display: block;
    background: #e8f5e9;
    color: #27ae60;
    border: 1px solid #c8e6c9;
}

.login-message.warning {
    display: block;
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

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

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #17213d;
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #dfe5ef;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #f8f9fc;
    color: #17213d;
}

.form-group input:focus {
    outline: none;
    border-color: #1769ff;
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(23, 105, 255, 0.1);
}

.form-group input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-group input.error {
    border-color: #e74c3c;
    background: #fff5f5;
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #1769ff, #0b347f);
    color: #ffffff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 8px;
    letter-spacing: 0.3px;
}

.login-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(23, 105, 255, 0.35);
}

.login-btn:active:not(:disabled) {
    transform: translateY(0);
}

.login-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.login-footer {
    margin-top: 25px;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #edf0f5;
}

.login-footer p {
    font-size: 13px;
    color: #6d7892;
    margin-bottom: 5px;
}

.login-footer small {
    color: #a0aab8;
    font-size: 12px;
}

.login-footer span {
    font-weight: 700;
    color: #1769ff;
}

.login-footer span.danger {
    color: #e74c3c;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* Estado de bloqueo */
.locked .login-btn {
    background: #95a5a6;
    cursor: not-allowed;
}

.locked .login-btn:hover {
    transform: none;
    box-shadow: none;
}

/* Responsive */
@media (max-width: 480px) {
    .login-box {
        padding: 30px 20px;
    }
    
    .login-header h1 {
        font-size: 22px;
    }
    
    .login-icon {
        font-size: 38px;
    }
}