/* Login Page Styles */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #1B3A5C 0%, #0F2440 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 1rem;
}

.login-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, #1B3A5C 0%, #0F2440 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.login-header p {
    opacity: 0.85;
    font-size: 0.9rem;
}

#login-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #475569;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: #1B3A5C;
    box-shadow: 0 0 0 3px rgba(27, 58, 92, 0.15);
}

.error-message {
    background: #fee2e2;
    color: #991b1b;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border-left: 3px solid #dc2626;
}

.login-btn {
    width: 100%;
    padding: 0.85rem;
    background: linear-gradient(135deg, #1B3A5C 0%, #2563EB 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    position: relative;
}

.login-btn:hover {
    opacity: 0.95;
}

.login-btn:active {
    transform: scale(0.99);
}

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.login-btn .btn-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

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

.login-footer {
    text-align: center;
    padding: 1rem 2rem;
    border-top: 1px solid #e2e8f0;
    color: #94a3b8;
    font-size: 0.8rem;
}