/* ===== 登入頁面專用樣式 ===== */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, #8b5cf6 100%);
    padding: 1rem;
}

[data-theme="dark"] .login-page {
    background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%);
}

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

.login-card {
    background-color: var(--bg-card);
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    overflow: hidden;
}

.login-header {
    text-align: center;
    padding: 2rem 2rem 1rem;
}

.login-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #8b5cf6 100%);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.3);
}

.login-logo i {
    font-size: 2.5rem;
    color: white;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.login-body {
    padding: 1.5rem 2rem 2rem;
}

.login-form .form-label {
    font-weight: 500;
    color: var(--text-primary);
}

.login-form .form-control {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 1rem;
}

.login-form .form-control:focus {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.login-form .input-group-text {
    background-color: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-muted);
}

.login-form .btn-login {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, #8b5cf6 100%);
    border: none;
    color: white;
    transition: all 0.3s ease;
}

.login-form .btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(99, 102, 241, 0.4);
}

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

.login-form .btn-login:disabled {
    opacity: 0.7;
    transform: none;
    box-shadow: none;
}

/* 記住我選項 */
.login-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.login-options .form-check-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.login-options .form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.login-options a {
    font-size: 0.875rem;
    color: var(--primary-color);
    text-decoration: none;
}

.login-options a:hover {
    text-decoration: underline;
}

/* 錯誤訊息 */
.login-error {
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: #dc3545;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

[data-theme="dark"] .login-error {
    background-color: rgba(220, 53, 69, 0.15);
}

/* 驗證碼區塊 */
.captcha-section {
    margin-bottom: 1rem;
}

.captcha-image {
    background-color: var(--bg-table-header);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.5rem;
    text-align: center;
    margin-bottom: 0.5rem;
}

.captcha-image img {
    max-width: 100%;
    height: auto;
}

.captcha-refresh {
    font-size: 0.875rem;
    color: var(--primary-color);
    cursor: pointer;
}

.captcha-refresh:hover {
    text-decoration: underline;
}

/* 登入頁主題切換按鈕位置 */
.login-theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
}

/* 頁尾資訊 */
.login-footer {
    text-align: center;
    padding: 1rem 2rem 1.5rem;
    border-top: 1px solid var(--border-light);
}

.login-footer p {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-bottom: 0;
}

/* 載入動畫 */
.login-loading {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.login-loading.show {
    display: flex;
}

.login-loading .spinner-border {
    width: 3rem;
    height: 3rem;
    color: white;
}

/* 密碼顯示/隱藏按鈕 */
.password-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0 0.75rem;
}

.password-toggle:hover {
    color: var(--primary-color);
}

/* 響應式調整 */
@media (max-width: 480px) {
    .login-header {
        padding: 1.5rem 1.5rem 1rem;
    }

    .login-body {
        padding: 1rem 1.5rem 1.5rem;
    }

    .login-logo {
        width: 64px;
        height: 64px;
    }

    .login-logo i {
        font-size: 2rem;
    }
}