/* ===== LOGIN PAGE STYLES ===== */
:root {
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --accent-blue: #2196F3;
    --accent-green: #4CAF50;
    --accent-red: #f44336;
    --border-color: #e2e8f0;
    --shadow: rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Background Overlay */
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/background.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -1;
    opacity: 0.2;
}

/* Login Container */
.login-container {
    width: 100%;
    max-width: 450px;
    padding: 2rem;
    animation: fadeIn 0.6s ease;
}

.login-box {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 3rem;
    box-shadow: 0 8px 32px var(--shadow);
    backdrop-filter: blur(10px);
}

/* Login Header */
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

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

/* Login Form */
.login-form {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-primary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.form-actions {
    margin-top: 2rem;
}

.btn-login {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.4);
}

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

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Form Message */
.form-message {
    margin-top: 1rem;
    padding: 0.875rem;
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #4caf50;
}

.form-message.error {
    display: block;
    background: #ffebee;
    color: #c62828;
    border: 1px solid #f44336;
}

/* Login Footer */
.login-footer {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.link-home {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.link-home:hover {
    color: var(--accent-green);
}

/* Demo Credentials */
.demo-credentials {
    margin-top: 1.5rem;
    padding: 1rem;
    background: #fff3e0;
    border-radius: 8px;
    border-left: 4px solid #ff9800;
}

.demo-title {
    font-weight: 600;
    color: #e65100;
    margin-bottom: 0.5rem;
}

.demo-info {
    color: #5d4037;
    font-size: 0.9rem;
    margin: 0.25rem 0;
}

.demo-info strong {
    color: #bf360c;
    font-family: monospace;
    background: #ffe0b2;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
}

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

/* Responsive */
@media (max-width: 768px) {
    .login-container {
        padding: 1rem;
    }
    
    .login-box {
        padding: 2rem 1.5rem;
    }
    
    .login-header h1 {
        font-size: 2rem;
    }
}