/* --- 全局与变量定义 --- */
:root {
    --bg-color: #f8f9fa;
    --surface-color: #ffffff;
    --primary-color: #4f46e5;
    --primary-color-hover: #4338ca;
    --danger-color: #e11d48;
    --danger-color-hover: #be123c;
    --success-color: #22c55e;
    --success-color-hover: #16a34a;
    --warning-color: #f59e0b;
    --warning-color-hover: #d97706;
    --checking-color: #f59e0b;
    --text-color: #1f2937;
    --text-color-secondary: #6b7280;
    --border-color: #e5e7eb;
    --border-radius-large: 12px;
    --border-radius-small: 8px;
    --font-family: 'Inter', sans-serif;
    --sidebar-width: 260px;
    --transition-speed: 0.3s;
}
[data-theme="dark"] {
    --bg-color: #111827;
    --surface-color: #1f2937;
    --text-color: #f9fafb;
    --text-color-secondary: #9ca3af;
    --border-color: #374151;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow: hidden;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}
.hidden { display: none !important; }

/* --- 登录页 --- */
.login-page-body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.login-container {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    background-color: var(--surface-color);
    border-radius: var(--border-radius-large);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    text-align: center;
}
.login-header { margin-bottom: 32px; }
.login-header .fa-rocket {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 16px;
}
.login-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.login-header p { color: var(--text-color-secondary); }
#login-form .form-group {
    text-align: left;
    margin-bottom: 20px;
}
#init-form .form-group {
    text-align: left;
    margin-bottom: 20px;
}
.btn-login {
    margin-top: 16px;
    width: 100%;
    justify-content: space-between;
    padding-left: 24px;
    padding-right: 24px;
}
.error-text {
    color: var(--danger-color);
    font-size: 0.875rem;
    text-align: left;
    margin-top: -12px;
    margin-bottom: 16px;
    min-height: 1.2em;
}

/* --- Toast 通知 --- */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    width: 320px;
    opacity: 0;
    transform: translateX(100%);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.toast.show { opacity: 1; transform: translateX(0); }
.toast-icon { font-size: 1.25rem; }
.toast-message { flex-grow: 1; font-size: 0.9rem; font-weight: 500; }
.toast-close {
    background: none; border: none; color: var(--text-color-secondary);
    cursor: pointer; font-size: 1.1rem; padding: 4px;
}
.toast.success .toast-icon { color: var(--success-color); }
.toast.error .toast-icon { color: var(--danger-color); }
.toast.info .toast-icon { color: var(--primary-color); }

/* --- 交互式对话框/Modal --- */
#dialog-container {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1000; display: flex; align-items: center; justify-content: center;
    background-color: rgba(0,0,0,0.3);
    opacity: 0; visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s;
}
#dialog-container.active {
    opacity: 1; visibility: visible;
}
.dialog-box {
    background-color: var(--surface-color); border-radius: var(--border-radius-large);
    padding: 24px; width: 90%; max-width: 400px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1); text-align: center;
    transform: scale(0.95);
    transition: transform 0.2s ease;
}
#dialog-container.active .dialog-box {
    transform: scale(1);
}
.dialog-message { margin: 16px 0 24px; font-size: 1rem; color: var(--text-color-secondary); }
.dialog-actions { display: flex; justify-content: center; gap: 12px; }
.dialog-actions .btn { width: auto; }

/* --- 主应用布局 --- */
.app-container { display: flex; height: 100vh; }
.main-content { flex-grow: 1; padding: 24px 32px; overflow-y: auto; }
#view-container { position: relative; }
.view { animation: fadeIn 0.5s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--surface-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    flex-shrink: 0;
    transition: transform var(--transition-speed) ease, background-color var(--transition-speed), border-color var(--transition-speed);
}
.sidebar-header {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 32px; font-size: 1.5rem; color: var(--primary-color);
}
.sidebar-header h1 { font-size: 1.25rem; font-weight: 600; color: var(--text-color); }
.sidebar-nav { flex-grow: 1; }
.sidebar-nav ul li a {
    display: flex; align-items: center; gap: 16px; padding: 12px;
    border-radius: var(--border-radius-small); color: var(--text-color-secondary);
    font-weight: 500; transition: all 0.2s ease;
}
.sidebar-nav ul li a:hover { background-color: var(--bg-color); color: var(--text-color); }
.sidebar-nav ul li a.active { background-color: var(--primary-color); color: white; }
.sidebar-nav ul li a.active i { color: white; }
.sidebar-bottom { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--border-color); transition: border-color var(--transition-speed); }
.theme-switcher {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 12px;
    background-color: var(--bg-color);
    border-radius: var(--border-radius-small);
    margin-bottom: 16px;
    transition: background-color var(--transition-speed);
}
.theme-switcher i { color: var(--text-color-secondary); }
.switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
    background-color: #ccc; border-radius: 24px;
    transition: var(--transition-speed);
}
.slider:before {
    position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px;
    background-color: white; border-radius: 50%;
    transition: var(--transition-speed);
}
input:checked + .slider { background-color: var(--primary-color); }
input:checked + .slider:before { transform: translateX(20px); }
.caddy-control-panel {
    margin-top: 16px;
    padding: 12px;
    background-color: var(--bg-color);
    border-radius: var(--border-radius-small);
    transition: background-color var(--transition-speed);
}
#caddy-action-button-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.caddy-status {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}
.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    transition: background-color var(--transition-speed);
}
.status-dot.running { background-color: var(--success-color); }
.status-dot.stopped { background-color: var(--danger-color); }
.status-dot.checking { background-color: var(--checking-color); }
.status-dot.error { background-color: var(--text-color-secondary); }
.status-text {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-color-secondary);
}
.logout-section {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    transition: border-color var(--transition-speed);
}
.main-header {
    display: flex; align-items: center; margin-bottom: 24px;
}
.main-header h2 { font-size: 1.75rem; font-weight: 700; flex-grow: 1; }
#menu-toggle-btn { display: none; margin-right: 16px; }
.card-panel {
    background-color: var(--surface-color);
    border-radius: var(--border-radius-large);
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}
.form-panel-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}
.form-panel-header h3 {
    flex-grow: 1;
}
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 18px; border: 1px solid transparent;
    border-radius: var(--border-radius-small); font-weight: 600;
    cursor: pointer; transition: all 0.2s ease;
    width: 100%;
}
.btn:active { transform: scale(0.97); }
.btn:disabled {
    background-color: #e5e7eb;
    color: #9ca3af;
    cursor: not-allowed;
    border-color: transparent;
    transform: none;
}
[data-theme="dark"] .btn:disabled {
    background-color: #374151;
    color: #6b7280;
}
.btn-primary { background-color: var(--primary-color); color: white; }
.btn-primary:hover:not(:disabled) { background-color: var(--primary-color-hover); }
.btn-secondary { background-color: var(--surface-color); color: var(--text-color); border-color: var(--border-color); }
.btn-secondary:hover:not(:disabled) { border-color: #ced4da; background-color: var(--bg-color); }
.btn-danger { background-color: var(--danger-color); color: white; }
.btn-danger:hover:not(:disabled) { background-color: var(--danger-color-hover); }
.btn-success { background-color: var(--success-color); color: white; }
.btn-success:hover:not(:disabled) { background-color: var(--success-color-hover); }
.btn-warning { background-color: var(--warning-color); color: white; }
.btn-warning:hover:not(:disabled) { background-color: var(--warning-color-hover); }
.btn-small { padding: 6px 12px; font-size: 0.875rem; width: auto; }
.btn-icon {
    background: none; border: none; color: var(--text-color-secondary); cursor: pointer;
    width: 40px; height: 40px; font-size: 1.1rem; border-radius: 50%;
    width: auto;
}
.btn-icon:hover { background-color: var(--bg-color); color: var(--text-color); }
.main-header .btn-primary { width: auto; }
.form-actions .btn { width: auto; }
.config-list-container { display: flex; flex-direction: column; gap: 12px; }
.config-item {
    display: flex; align-items: center; padding: 12px 16px; background-color: var(--bg-color);
    border: 1px solid var(--border-color); border-radius: var(--border-radius-small);
    transition: all 0.2s ease;
}
.config-item:hover { transform: translateY(-2px); box-shadow: 0 4px 8px rgba(0,0,0,0.05); }
.config-item-name { font-weight: 500; flex-grow: 1; }
.config-item-actions { display: flex; gap: 8px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; margin-bottom: 24px; }
.form-group label, fieldset legend {
    display: block; font-weight: 500; margin-bottom: 8px; color: var(--text-color-secondary); font-size: 0.875rem;
}
.form-group input {
    width: 100%; padding: 12px; background-color: var(--surface-color); border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small); color: var(--text-color); font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s, background-color var(--transition-speed);
}
.form-group input:focus {
    outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}
fieldset { border: none; padding: 0; margin: 0 0 24px 0; }
.sub-fieldset {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    padding: 16px;
    margin-top: 20px;
}
.sub-legend {
    font-weight: 500;
    color: var(--text-color-secondary);
    font-size: 0.875rem;
    margin-bottom: 12px;
}
.checkbox-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-top: 8px; }
.custom-checkbox {
    position: relative; display: inline-flex; align-items: center; cursor: pointer; gap: 12px;
}
.custom-checkbox input { display: none; }
.custom-checkbox .checkmark {
    width: 20px; height: 20px; border: 2px solid var(--border-color);
    border-radius: 6px; transition: all 0.2s;
}
.custom-checkbox input:checked + .checkmark { background-color: var(--primary-color); border-color: var(--primary-color); }
.custom-checkbox .checkmark::after {
    content: "\f00c"; font-family: "Font Awesome 6 Free"; font-weight: 900;
    font-size: 12px; color: white; position: absolute; top: 3px; left: 3px;
    transform: scale(0); transition: transform 0.2s;
}
.custom-checkbox input:checked + .checkmark::after { transform: scale(1); }
.header-entry {
    display: grid; grid-template-columns: 1fr 1fr auto; gap: 12px; margin-bottom: 12px;
}
.header-entry input {
    width: 100%; padding: 10px; background-color: var(--bg-color); border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small); color: var(--text-color);
}
.custom-select { position: relative; }
.select-selected {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px; background-color: var(--surface-color); border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small); cursor: pointer; user-select: none;
    transition: border-color 0.2s, box-shadow 0.2s, background-color var(--transition-speed);
}
.select-selected.select-arrow-active {
    border-color: var(--primary-color); box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}
.select-selected::after {
    content: '\f078'; font-family: 'Font Awesome 6 Free'; font-weight: 900;
    transition: transform var(--transition-speed) ease;
}
.select-selected.select-arrow-active::after { transform: rotate(180deg); }
.select-items {
    position: absolute; background-color: var(--surface-color); top: 100%; left: 0; right: 0;
    border: 1px solid var(--border-color); border-radius: var(--border-radius-small);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1); z-index: 99;
    margin-top: 8px; max-height: 200px; overflow-y: auto;
    opacity: 0; transform: translateY(-10px); visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}
.select-items.select-show { opacity: 1; transform: translateY(0); visibility: visible; }
.select-items div {
    padding: 12px 16px; cursor: pointer; transition: background-color 0.2s;
}
.select-items div:hover, .same-as-selected { background-color: var(--bg-color); }
#rendered-output-panel pre {
    background-color: var(--bg-color); padding: 16px; border-radius: var(--border-radius-small);
    overflow-x: auto; white-space: pre-wrap; word-break: break-all;
    border: 1px solid var(--border-color); transition: background-color var(--transition-speed);
}
@media (max-width: 992px) {
    .sidebar {
        position: fixed; z-index: 200; height: 100%;
        transform: translateX(-100%);
        box-shadow: 0 0 20px rgba(0,0,0,0.1);
    }
    .sidebar.is-open { transform: translateX(0); }
    #menu-toggle-btn { display: inline-flex; }
    .main-header .btn-text { display: none; }
    .sidebar-nav span, .sidebar-footer span { display: inline; }
    .main-content { padding: 16px; }
}