/* Login CSS - Komunalna Aplikacija */

/* Import Montserrat font */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700&display=swap');

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

body {
    font-family: 'Montserrat', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    width: 100%;
    max-width: 420px;
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    background: linear-gradient(135deg, #2c3e50, #34495e);
    color: white;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.login-header .logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 24px;
    margin: 0 auto 20px;
    box-shadow: 0 8px 25px rgba(0,123,255,0.4);
    position: relative;
    z-index: 1;
}

.login-header h1 {
    font-size: 24px;
    margin-bottom: 12px;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.login-header p {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 400;
    position: relative;
    z-index: 1;
}

.login-body {
    padding: 40px 30px;
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 14px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-control:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 4px rgba(0, 123, 255, 0.1);
    background: white;
    transform: translateY(-2px);
}

.form-control:hover {
    border-color: #ced4da;
    background: white;
}

.btn {
    width: 100%;
    padding: 16px 20px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    background: linear-gradient(135deg, #0056b3, #004494);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,123,255,0.4);
}

.btn:active {
    transform: translateY(0);
}

.btn i {
    font-size: 16px;
}

.alert {
    padding: 16px 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: fadeIn 0.3s ease;
}

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

.alert i {
    font-size: 18px;
}

.alert-error {
    background: linear-gradient(135deg, #f8d7da, #f5c6cb);
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-success {
    background: linear-gradient(135deg, #d4edda, #c3e6cb);
    color: #155724;
    border: 1px solid #c3e6cb;
}

.demo-info {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    font-size: 13px;
    border: 1px solid #90caf9;
    position: relative;
    overflow: hidden;
}

.demo-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #2196f3, #1976d2, #2196f3);
}

.demo-info strong {
    color: #1976d2;
    font-weight: 700;
}

.demo-info .demo-credentials {
    margin-top: 10px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.demo-credential {
    background: rgba(255,255,255,0.7);
    padding: 8px 12px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-weight: 600;
    color: #1976d2;
    text-align: center;
    border: 1px solid rgba(25,118,210,0.2);
}

.login-footer {
    background: linear-gradient(to right, #f8f9fa, #e9ecef);
    padding: 25px 30px;
    text-align: center;
    font-size: 12px;
    color: #6c757d;
    font-weight: 500;
    border-top: 1px solid #e9ecef;
}

.login-footer .footer-links {
    margin-top: 10px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.login-footer a {
    color: #007bff;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.login-footer a:hover {
    color: #0056b3;
}

/* Loading animation */
.btn.loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn.loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 8px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .login-container {
        max-width: 100%;
        margin: 0;
    }
    
    .login-header {
        padding: 30px 20px;
    }
    
    .login-header .logo {
        width: 70px;
        height: 70px;
        font-size: 20px;
    }
    
    .login-header h1 {
        font-size: 20px;
    }
    
    .login-body {
        padding: 30px 20px;
    }
    
    .form-control {
        padding: 14px 16px;
    }
    
    .btn {
        padding: 14px 16px;
        font-size: 14px;
    }
    
    .demo-credentials {
        grid-template-columns: 1fr;
    }
}