/* css/auth.css */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: var(--bg-primary);
    position: relative;
}

.auth-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-2xl);
    padding: 36px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

.auth-card .auth-logo {
    text-align: center;
    margin-bottom: 24px;
}

.auth-card .auth-logo .brand-icon {
    width: 52px;
    height: 52px;
    background: var(--accent-yellow);
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.6rem;
    color: #fff;
    margin-bottom: 10px;
    box-shadow: 0 4px 10px rgba(245, 158, 11, 0.3);
}

.auth-card .auth-logo h1 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.auth-card .auth-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    border: 2px solid var(--border);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.auth-submit-btn {
    width: 100%;
    padding: 14px;
    background: var(--accent-blue);
    color: #fff;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 1rem;
    transition: var(--transition);
    margin-top: 6px;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.auth-submit-btn:hover {
    background: #2563eb;
    transform: translateY(-1px);
}

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

.auth-divider {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 20px 0;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

.google-btn {
    width: 100%;
    padding: 12px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
}

.google-btn:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-1px);
}

.google-btn svg {
    width: 20px;
    height: 20px;
}

.auth-switch {
    text-align: center;
    margin-top: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.auth-switch a {
    color: var(--accent-blue);
    font-weight: 700;
}

.auth-switch a:hover {
    text-decoration: underline;
}

.auth-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 16px;
    display: none;
}

.auth-error.visible {
    display: block;
}

.back-home {
    position: absolute;
    top: 20px;
    left: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
    z-index: 2;
}

.back-home:hover {
    color: var(--text-primary);
}