/* Modern Login Page Styles */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --light-bg: #f8f9fa;
    --dark-bg: #2c3e50;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --border-radius: 12px;
    --box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

* {
    font-family: 'Prompt', sans-serif;
}

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

.login-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    width: 100%;
    max-width: 450px;
    position: relative;
    animation: slideUp 0.6s ease;
}

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

.login-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.login-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.login-header h1 {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0;
    position: relative;
    z-index: 1;
}

.login-header p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin: 0.5rem 0 0 0;
    position: relative;
    z-index: 1;
}

.login-body {
    padding: 2.5rem;
}

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

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 1rem 1rem 1rem 3rem;
    font-size: 1rem;
    transition: var(--transition);
    background: #f8f9fa;
    width: 100%;
    box-sizing: border-box;
}

.form-control:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
    background: white;
    outline: none;
}

.form-control::placeholder {
    color: var(--text-secondary);
}

.input-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    z-index: 2;
    transition: var(--transition);
}

.form-control:focus + .input-icon {
    color: var(--secondary-color);
}

.btn-login {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    border: none;
    border-radius: 10px;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    width: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
    color: white;
}

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

.btn-login:disabled {
    opacity: 0.7;
    transform: none;
    cursor: not-allowed;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-login:hover::before {
    left: 100%;
}

.error-alert {
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideIn 0.3s ease;
}

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

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

.footer-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #e9ecef;
}

.footer-text a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-text a:hover {
    color: var(--primary-color);
}

/* Form validation styles */
.form-group.has-value .form-control {
    border-color: var(--success-color);
}

.form-group.has-value .input-icon {
    color: var(--success-color);
}

.form-group.focused .form-control {
    border-color: var(--secondary-color);
}

.form-group.focused .input-icon {
    color: var(--secondary-color);
}

/* Success message styles */
.success-alert {
    background: linear-gradient(135deg, var(--success-color), #2ecc71);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideIn 0.3s ease;
}

/* Warning message styles */
.warning-alert {
    background: linear-gradient(135deg, var(--warning-color), #f1c40f);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideIn 0.3s ease;
}

/* Responsive Design */
@media (max-width: 576px) {
    .login-container {
        margin: 10px;
        max-width: 100%;
    }
    
    .login-header {
        padding: 1.5rem;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .login-body {
        padding: 2rem 1.5rem;
    }
    
    .form-control {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .login-header h1 {
        font-size: 1.3rem;
    }
    
    .login-body {
        padding: 1.5rem 1rem;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .login-container {
        background: rgba(44, 62, 80, 0.95);
        color: white;
    }
    
    .form-control {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.2);
        color: white;
    }
    
    .form-control:focus {
        background: rgba(255, 255, 255, 0.15);
    }
    
    .form-control::placeholder {
        color: rgba(255, 255, 255, 0.7);
    }
    
    .footer-text {
        border-top-color: rgba(255, 255, 255, 0.2);
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .form-control {
        border-width: 3px;
    }
    
    .btn-login {
        border: 2px solid white;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Password toggle button */
.password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
    z-index: 3;
}

.password-toggle:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--secondary-color);
}

.password-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

/* Field error styles */
.field-error {
    color: var(--accent-color);
    font-size: 0.8rem;
    margin-top: 0.25rem;
    animation: slideIn 0.3s ease;
}

.form-control.is-invalid {
    border-color: var(--accent-color);
}

.form-control.is-invalid + .input-icon {
    color: var(--accent-color);
}

/* Form text styles */
.form-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Skip link for accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.sr-only-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* Print styles */
@media print {
    .login-container {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .btn-login {
        background: #ccc !important;
        color: #000 !important;
    }
}