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

:root {
  --bg-base: #0a0b0e;
  --bg-surface: #111318;
  --bg-card: #161920;
  --bg-card-hover: #1c2028;
  --bg-input: #0e1015;
  --border: rgba(255, 255, 255, 0.1);
  --border-accent: rgba(232, 54, 45, 0.15);
  --border-btn-secondary: rgba(255, 255, 255, 0.2);
  --text-primary: #e8eaf0;
  --text-secondary: #9aa0b0;
  --text-on-accent: #fff;
  --text-muted: #565b6b;
  --accent: #e8362d;
  --accent-soft: #d32f2f;
  --accent-dim: rgba(232, 54, 45, 0.08);
  --green: #68d391;
  --green-dim: rgba(104, 211, 145, 0.15);
  --orange: #f6ad55;
  --danger: #f87171;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

html {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

body {
  min-height: 100vh;
  background: #07080a;
  overflow-x: hidden;
}

/* ── Site Container ── */
.site-container {
  max-width: 85em;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--bg-base);
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  box-shadow: 0 0 100px rgba(0, 0, 0, 0.5);
}

/* ── Navigation ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 56px;
  background: rgba(10, 11, 14, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 7rem;
  height: auto;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── Language Switcher ── */
.lang-switcher {
  position: relative;
}

.lang-switcher > summary {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.3rem 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  transition: background 0.15s, border-color 0.15s;
}

.lang-switcher > summary::-webkit-details-marker {
  display: none;
}

.lang-switcher > summary:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
}

.lang-icon {
  width: 1em;
  height: 1em;
}

.lang-chevron {
  flex-shrink: 0;
  opacity: 0.75;
}

.lang-switcher-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 9rem;
  padding: 0.35rem 0;
  list-style: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  z-index: 200;
}

.lang-switcher-menu a {
  display: block;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}

.lang-switcher-menu a:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
}

.lang-switcher-menu a.is-current {
  color: var(--accent-soft);
  font-weight: 600;
  pointer-events: none;
}

/* ── Page Header ── */
.page-header {
  padding: 3rem 3rem 2.5rem;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(
    ellipse at 50% 0%,
    rgba(232, 54, 45, 0.06) 0%,
    transparent 60%
  );
  text-align: center;
}

.page-header h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 0.6rem;
}

.page-header p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* ── Status Bar ── */
.status-bar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0.9rem 1.5rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.status-bar.is-online {
  border-color: rgba(104, 211, 145, 0.22);
  background: linear-gradient(
    135deg,
    var(--bg-card) 0%,
    rgba(104, 211, 145, 0.025) 100%
  );
}

.status-info {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  font-weight: 500;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.status-badge.offline {
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}

.status-badge.online {
  color: var(--green);
  background: var(--green-dim);
  border: 1px solid rgba(104, 211, 145, 0.2);
}

.status-badge.online .status-dot {
  background: var(--green);
  animation: pulse 2s infinite;
}

.status-badge.offline .status-dot {
  background: var(--text-muted);
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.status-meta-sep {
  color: var(--border);
  font-size: 0.8rem;
  user-select: none;
}

.status-meta-item {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-weight: 600;
}

/* ── Main ── */
main {
  flex: 1;
  padding: 2rem 2rem 4rem;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

/* ── Main Content Card ── */
.main-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* ── Tabs ── */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  flex: 1;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: color 0.15s, border-color 0.15s;
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent-soft);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* ── Collapsible Config Sections ── */
.config-section {
  border-bottom: 1px solid var(--border);
}

.config-section:last-of-type {
  border-bottom: none;
}

.section-header {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  cursor: pointer;
  transition: background 0.15s;
  user-select: none;
}

.section-header::-webkit-details-marker {
  display: none;
}

.section-header:hover {
  background: rgba(255, 255, 255, 0.02);
}

.section-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-soft);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border-accent);
  min-width: 2rem;
}

.section-chevron {
  width: 1rem;
  height: 1rem;
  color: var(--text-muted);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.config-section[open] .section-chevron {
  transform: rotate(180deg);
}

.section-body {
  padding: 0 1.5rem 1.5rem;
}

.section-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

/* ── Advanced sub-section ── */
.advanced-section {
  margin-top: 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
}

.advanced-section > summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color 0.15s;
}

.advanced-section > summary::-webkit-details-marker {
  display: none;
}

.advanced-section > summary:hover {
  color: var(--text-primary);
}

.advanced-section .adv-chevron {
  width: 0.85rem;
  height: 0.85rem;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.advanced-section[open] .adv-chevron {
  transform: rotate(180deg);
}

.advanced-body {
  padding: 0 1rem 1rem;
}

/* ── Forms ── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.capabilities-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.capabilities-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.capability-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.capability-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.capability-item input[type="checkbox"] {
  width: auto;
  margin-top: 0.1rem;
  flex: 0 0 auto;
}

.capability-meta {
  min-width: 0;
  width: 100%;
}

.capability-title {
  font-weight: 700;
  color: var(--text-primary);
}

.capability-id {
  margin-top: 0.18rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  word-break: break-all;
}

.capability-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 0.7rem;
}

.capability-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.capability-toggle input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-hint {
  font-size: 0.72rem;
  color: var(--text-secondary);
  line-height: 1.35;
  opacity: 0.85;
}

label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

input,
select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.85rem;
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color 0.15s;
  width: 100%;
}

input:focus,
select:focus {
  outline: none;
  border-color: rgba(232, 54, 45, 0.4);
}

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

select option {
  background: #1c2028;
}

/* ── WeChat Login Sub-panel ── */
.wechat-login-panel {
  padding: 0;
}

.wechat-login-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.wechat-login-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

.wechat-login-actions {
  display: flex;
  gap: 0.5rem;
}

.wechat-qr {
  display: block;
  max-width: 200px;
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
  background: #ffffff;
  border-radius: 12px;
  padding: 10px;
  image-rendering: pixelated;
}

.wechat-login-note {
  margin-top: 0.75rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.wechat-login-link {
  display: table;
  margin: 0.35rem auto 0;
  color: var(--accent-soft);
  text-decoration: none;
  font-size: 0.82rem;
}

.wechat-login-link:hover {
  text-decoration: underline;
}

.config-banner-wrap {
  padding: 1.5rem 1.5rem 0;
}

.config-banner-wrap .banner {
  margin-bottom: 0;
}

/* ── Config Actions (Save) ── */
.config-actions {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.config-footer-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  flex: 1;
  min-width: 200px;
}

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: var(--text-on-accent);
  font-weight: 600;
  font-size: 0.9rem;
  font-family: inherit;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s, box-shadow 0.2s;
  box-shadow: 0 0 20px rgba(232, 54, 45, 0.1);
  white-space: nowrap;
}

.btn-primary:hover:not(:disabled) {
  opacity: 0.9;
  box-shadow: 0 0 28px rgba(232, 54, 45, 0.15);
}

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-family: inherit;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-btn-secondary);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.14);
  color: var(--text-primary);
}

.btn-secondary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-sm {
  padding: 0.3rem 0.75rem;
  font-size: 0.8rem;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.btn-danger-ghost {
  color: var(--text-muted);
}

.btn-danger-ghost:hover {
  color: var(--danger);
  background: rgba(248, 113, 113, 0.08);
}

/* ── Banners ── */
.banner {
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  display: none;
}

.banner.visible {
  display: block;
}

.banner.success {
  background: var(--green-dim);
  border: 1px solid rgba(104, 211, 145, 0.2);
  color: var(--green);
}

.banner.error {
  background: var(--accent-dim);
  border: 1px solid var(--border-accent);
  color: var(--danger);
}

/* ── File Manager ── */
.file-panel {
  padding: 1.5rem;
}

.memory-panel {
  padding: 1.5rem;
}

.memory-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.memory-toolbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.memory-title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.memory-note {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.memory-empty {
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.memory-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.memory-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  padding: 1rem;
}

.memory-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.memory-card-title {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.memory-card-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.memory-inline-empty {
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  padding: 0.85rem;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.memory-editor {
  width: 100%;
  min-height: 420px;
  resize: vertical;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  padding: 1rem;
  font-size: 0.88rem;
  line-height: 1.6;
  font-family: "JetBrains Mono", "Fira Code", monospace;
  box-sizing: border-box;
}

.memory-editor-sm {
  min-height: 220px;
}

.memory-editor:focus {
  outline: none;
  border-color: rgba(232, 54, 45, 0.4);
}

.memory-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 1rem;
}

.file-toolbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.file-toolbar-right {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.file-path {
  display: inline-flex;
  align-items: center;
  height: 2.15rem;
  padding: 0 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.file-create-row,
.file-upload-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.file-panel input,
.file-panel .btn-sm,
.file-panel .btn-ghost {
  font-size: 0.82rem;
  padding: 0.45rem 0.75rem;
  height: 2.15rem;
  box-sizing: border-box;
}

.file-create-row input,
.file-upload-row input[type="text"] {
  flex: 1;
  min-width: 150px;
}

.file-picker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 180px;
  height: 2.15rem;
  padding: 0 0.6rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
}

.file-picker .btn-ghost {
  height: auto;
  padding: 0;
}

.file-picker input[type="file"] {
  display: none;
}

.file-name {
  font-size: 0.82rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

/* ── File Table ── */
.table-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  background: var(--bg-card);
}

tr:last-child td {
  border-bottom: none;
}

td {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

td.actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, max-content));
  gap: 0.5rem;
  align-items: center;
}

.link-btn {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-soft);
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  transition: background 0.12s, color 0.12s;
  text-decoration: none;
}

.link-btn:disabled {
  color: var(--text-muted);
  cursor: not-allowed;
  opacity: 0.65;
}

.link-btn:disabled:hover {
  background: none;
  color: var(--text-muted);
}

.action-slot {
  display: inline-flex;
  align-items: center;
  min-width: 2.6rem;
}

.action-slot.placeholder {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  opacity: 0.75;
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
  cursor: default;
  user-select: none;
}

.link-btn:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

.link-btn.danger:hover {
  color: var(--danger);
  background: rgba(248, 113, 113, 0.08);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 16, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 1000;
}

.modal-dialog {
  width: min(960px, 100%);
  max-height: calc(100vh - 3rem);
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.25rem 0;
  flex-wrap: wrap;
}

.modal-title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-editor {
  width: calc(100% - 2.5rem);
  min-height: 420px;
  margin: 0 1.25rem 1.25rem;
  resize: vertical;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  padding: 1rem;
  font-size: 0.88rem;
  line-height: 1.6;
  font-family: "JetBrains Mono", "Fira Code", monospace;
  box-sizing: border-box;
}

.modal-editor:focus {
  outline: none;
  border-color: rgba(232, 54, 45, 0.4);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 0 1.25rem 1.25rem;
  flex-wrap: wrap;
}

/* ── Footer ── */
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-top: 1px solid var(--border);
}

.footer-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-text a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

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

.footer-highlight {
  font-weight: 600;
}

/* ── Utility ── */
.hidden {
  display: none !important;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 9px;
}

/* ── Responsive ── */
@media (max-width: 700px) {
  nav {
    padding: 0 1rem;
  }

  .page-header {
    padding: 2rem 1.5rem;
  }

  main {
    padding: 1.25rem 1rem 3rem;
  }

  .status-bar {
    padding: 0.75rem 1rem;
    flex-direction: column;
    align-items: flex-start;
  }

  .section-header {
    padding: 0.85rem 1rem;
  }

  .section-body {
    padding: 0 1rem 1rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .capabilities-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .capability-list {
    grid-template-columns: 1fr;
  }

  .form-group.full {
    grid-column: auto;
  }

  .config-banner-wrap {
    padding: 1rem 1rem 0;
  }

  .config-actions {
    padding: 1rem;
    flex-direction: column;
    align-items: stretch;
  }

  .file-panel {
    padding: 1rem;
  }

  .tab-btn {
    padding: 0.6rem 1rem;
    font-size: 0.82rem;
  }

  footer {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}