/* ==========================================================================
   Server Settings — Full-screen overlay (Discord-style)

   Real structure (same as Discord):
   - Full-screen overlay with TWO background colors split vertically.
   - A single centered container (max-width ~1200px) holds nav + content.
   - Nav sits on the dark side, content on the lighter side.
   - The bg colors bleed out to the edges via pseudo-elements.
   ========================================================================== */

/* --- Full-screen overlay --- */
#server-settings {
  position: fixed;
  inset: 0;
  z-index: 600;
  animation: settingsFadeIn 0.2s ease;
  overflow: hidden;
}

#server-settings.hidden {
  display: none;
}

@keyframes settingsFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- Layout wrapper — centered box with bg bleed --- */
.server-settings-layout {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  /* Two-tone background: nav color covers everything,
     content pseudo-element paints over the right side */
  background: var(--sidebar-bg);
  position: relative;
}

/* Right-half background bleed */
.server-settings-layout::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 50%;
  background: var(--bg);
  z-index: 0;
  pointer-events: none;
}

/* --- Centered container: nav + content + close --- */
.server-settings-layout > * {
  position: relative;
  z-index: 1;
}

/* ==========  NAV  ========== */
.server-settings-nav {
  width: 232px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  justify-content: flex-end;
}

.server-settings-nav-inner {
  width: 200px;
  flex-shrink: 0;
  padding: calc(var(--safe-top) + 60px) 6px 40px 0;
}

/* --- Nav header --- */
.server-settings-nav-header {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  padding: 0 10px 10px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Nav dropdown (mobile only) --- */
.settings-nav-dropdown {
  display: none;
}

/* --- Nav items --- */
.server-settings-nav-items {
  display: flex;
  flex-direction: column;
}

.settings-nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 7px 10px;
  border: none;
  background: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
  text-align: left;
}

.settings-nav-item:hover {
  background: rgba(var(--overlay-rgb), 0.04);
  color: var(--text-secondary);
}

.settings-nav-item.active {
  background: rgba(var(--overlay-rgb), 0.08);
  color: var(--text);
}

.settings-nav-category {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-dimmer);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 8px 10px 4px;
}

.settings-nav-separator {
  height: 1px;
  background: var(--border-subtle);
  margin: 6px 10px;
}

/* ==========  CONTENT  ========== */
.server-settings-content {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 740px;
  background: var(--bg);
  overflow-y: auto;
  overflow-x: hidden;
}

.server-settings-content-inner {
  padding: calc(var(--safe-top) + 60px) 40px calc(var(--safe-bottom) + 60px) 40px;
}

/* ==========  CLOSE COLUMN  ========== */
.server-settings-close-col {
  position: fixed;
  top: calc(var(--safe-top) + 60px);
  right: 20px;
  z-index: 5;
}

.server-settings-close-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--text-dimmer);
  background: none;
  color: var(--text-dimmer);
  cursor: pointer;
  padding: 0;
  justify-content: center;
  transition: border-color 0.15s, color 0.15s;
  position: relative;
}

.server-settings-close-btn .lucide {
  width: 18px;
  height: 18px;
}

.server-settings-close-btn span {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  position: absolute;
  top: calc(100% + 6px);
  font-family: inherit;
}

.server-settings-close-btn:hover {
  border-color: var(--text-secondary);
  color: var(--text-secondary);
}

/* ==========  SECTIONS  ========== */
.server-settings-section {
  display: none;
}

.server-settings-section.active {
  display: block;
}

.server-settings-section h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
}

.server-settings-section h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 28px 0 12px;
}

/* ==========  SETTINGS CARDS  ========== */
.settings-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px 0;
  margin-bottom: 16px;
}
.settings-card:has(.layout-switcher) {
  padding: 14px 16px;
}

.settings-field {
  padding: 12px 16px;
}

.settings-field + .settings-field {
  border-top: 1px solid var(--border-subtle);
}

.settings-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 4px;
}

.settings-value {
  font-size: 14px;
  color: var(--text);
  word-break: break-all;
}

.settings-value.settings-mono {
  font-family: "Roboto Mono", monospace;
  font-size: 13px;
  color: var(--text-muted);
}

.settings-field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  gap: 12px;
}

.settings-field-row + .settings-field-row {
  border-top: 1px solid var(--border-subtle);
}

.settings-field-row .settings-label {
  margin-bottom: 0;
}

.settings-field-row .settings-value {
  flex-shrink: 0;
  text-align: right;
}

/* --- Toggle row --- */
.settings-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  gap: 16px;
  cursor: pointer;
  transition: background 0.15s;
}

.settings-toggle-row + .settings-toggle-row {
  border-top: 1px solid var(--border-subtle);
}

.settings-toggle-row:hover {
  background: rgba(var(--overlay-rgb), 0.02);
}

.settings-toggle-row input {
  display: none;
}

.settings-toggle-row .toggle-track {
  flex-shrink: 0;
}

.settings-toggle-row input:checked + .toggle-track {
  background: var(--accent);
  border-color: var(--accent);
}

.settings-toggle-row input:checked + .toggle-track .toggle-thumb {
  transform: translateX(14px);
  background: #fff;
}

.settings-hint {
  font-size: 12px;
  color: var(--text-dimmer);
  line-height: 1.5;
  margin-top: 2px;
}

.settings-copyable-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.settings-copyable {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 3px 6px 3px 10px;
  cursor: pointer;
}

.settings-copyable code {
  font-size: 12px;
  color: var(--text);
  user-select: all;
}

.settings-copy-btn {
  border: none;
  background: transparent;
  color: var(--text-dimmer);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 4px;
  border-radius: 4px;
  line-height: 1;
  transition: color 0.15s, background 0.15s;
}

.settings-copy-btn:hover {
  color: var(--text);
  background: var(--sidebar-hover);
}

.settings-badge {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 6px;
  background: rgba(var(--overlay-rgb), 0.06);
}

.settings-badge.settings-badge-on {
  background: var(--error-12);
  color: var(--error);
}

/* --- Model list --- */
.settings-model-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 8px;
}

.settings-model-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  position: relative;
  padding: 10px 36px 10px 12px;
  border-radius: 8px;
  background: rgba(var(--overlay-rgb), 0.03);
  font-size: 13px;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.settings-model-item:hover {
  background: rgba(var(--overlay-rgb), 0.06);
  border-color: var(--border);
}

.settings-model-item.active {
  border-color: var(--accent);
  color: var(--text);
}

.settings-model-item.active::after {
  content: "\2713";
  color: var(--accent);
  font-weight: 700;
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
}

.settings-model-name {
  font-size: 13px;
  font-weight: 500;
}

.settings-model-desc {
  font-size: 12px;
  color: var(--text-dimmer);
  line-height: 1.4;
  font-weight: 400;
}

.settings-model-item.active .settings-model-desc {
  color: var(--text-muted);
}

/* --- Button group --- */
.settings-btn-group {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-top: 8px;
  width: fit-content;
}

.settings-btn-option {
  padding: 6px 16px;
  border: none;
  background: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.settings-btn-option + .settings-btn-option {
  border-left: 1px solid var(--border);
}

.settings-btn-option:hover {
  background: rgba(var(--overlay-rgb), 0.04);
  color: var(--text-secondary);
}

.settings-btn-option.active {
  background: var(--accent);
  color: #fff;
}

.settings-budget-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}

.settings-budget-label {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

.settings-budget-input {
  width: 90px;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
}

.settings-budget-input:focus {
  border-color: var(--accent);
  outline: none;
}

/* --- PIN input --- */
.settings-pin-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

#settings-pin-input {
  width: 120px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-family: "Roboto Mono", monospace;
  font-size: 16px;
  letter-spacing: 0.15em;
  text-align: center;
  outline: none;
  transition: border-color 0.15s;
}

#settings-pin-input:focus {
  border-color: var(--accent);
}

#settings-pin-input::placeholder {
  color: var(--text-dimmer);
  letter-spacing: 0.15em;
}

.settings-pin-error {
  color: var(--error) !important;
  margin-top: 6px;
}

.settings-pin-btns {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

/* --- Small buttons --- */
.settings-btn-sm {
  padding: 5px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}

.settings-btn-sm:hover {
  background: rgba(var(--overlay-rgb), 0.06);
  border-color: var(--text-dimmer);
  color: var(--text);
}

.settings-btn-update {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.settings-btn-update .lucide {
  width: 14px;
  height: 14px;
}

.settings-btn-update:disabled {
  opacity: 0.6;
  cursor: default;
}

.settings-btn-update-available {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-bg);
}

.settings-btn-update-available:hover {
  background: var(--accent);
  color: #fff;
}

.settings-btn-ghost {
  background: none;
  border-color: transparent;
  color: var(--text-muted);
}

.settings-btn-ghost:hover {
  background: rgba(var(--overlay-rgb), 0.04);
  color: var(--text-secondary);
}

.settings-btn-danger {
  border-color: var(--error);
  color: var(--error);
}

.settings-btn-danger:hover {
  background: var(--error-12);
}

/* --- Badge variant: green for enabled --- */
.settings-badge.settings-badge-green {
  background: rgba(46, 160, 67, 0.12);
  color: #3fb950;
}

/* --- Nav danger item (Shutdown) --- */
.settings-nav-item.settings-nav-danger {
  color: var(--error);
}

.settings-nav-item.settings-nav-danger:hover {
  background: var(--error-12);
  color: var(--error);
}

.settings-nav-item.settings-nav-danger.active {
  background: var(--error-12);
  color: var(--error);
}

/* --- Danger zone banner --- */
.settings-danger-zone {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 12px;
  background: var(--error-12);
  border: 1px solid color-mix(in srgb, var(--error) 25%, transparent);
  margin-bottom: 20px;
}

.settings-danger-icon {
  flex-shrink: 0;
  color: var(--error);
  margin-top: 2px;
}

.settings-danger-icon .lucide {
  width: 22px;
  height: 22px;
}

.settings-danger-body {
  min-width: 0;
}

.settings-danger-title {
  font-size: 15px !important;
  font-weight: 600 !important;
  color: var(--error) !important;
  text-transform: none !important;
  letter-spacing: 0 !important;
  margin: 0 0 4px !important;
}

.settings-danger-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* --- Danger card variant --- */
.settings-card.settings-card-danger {
  border-color: color-mix(in srgb, var(--error) 25%, transparent);
}

/* --- Shutdown input row --- */
.settings-shutdown-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

#settings-shutdown-input {
  flex: 1;
  max-width: 260px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-family: "Roboto Mono", monospace;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}

#settings-shutdown-input:focus {
  border-color: var(--error);
}

#settings-shutdown-input::placeholder {
  color: var(--text-dimmer);
  font-family: inherit;
}

/* --- Shutdown button --- */
.settings-btn-shutdown {
  padding: 8px 20px !important;
  border-color: var(--error) !important;
  background: transparent !important;
  color: var(--error) !important;
  font-weight: 600 !important;
  transition: background 0.15s, color 0.15s, opacity 0.15s !important;
}

.settings-btn-shutdown:hover:not(:disabled) {
  background: var(--error) !important;
  color: #fff !important;
}

.settings-btn-shutdown:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.settings-shutdown-error {
  color: var(--error) !important;
  margin-top: 8px;
}


/* ==========  RESPONSIVE  ========== */
@media (max-width: 768px) {
  .server-settings-layout {
    flex-direction: column;
    background: var(--sidebar-bg);
  }

  .server-settings-layout::after {
    display: none;
  }

  .server-settings-nav {
    width: 100%;
    flex-shrink: 0;
    justify-content: flex-start;
    overflow-y: visible;
    border-bottom: 1px solid var(--border-subtle);
  }

  .server-settings-nav-inner {
    width: 100%;
    padding: var(--safe-top) 0 0;
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .server-settings-nav-header {
    padding: 10px 48px 8px 16px;
    line-height: 36px;  /* match close btn height for vertical align */
  }

  /* Hide desktop nav items on mobile, show dropdown instead */
  .server-settings-nav-items {
    display: none;
  }

  .settings-nav-dropdown {
    display: block;
    width: calc(100% - 32px);
    margin: 0 16px 12px;
    padding: 10px 12px;
    font-family: "Pretendard", system-ui, sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 10px;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    cursor: pointer;
  }

  .settings-nav-dropdown optgroup {
    font-weight: 700;
    color: var(--text-muted);
  }

  .settings-nav-dropdown option {
    font-weight: 500;
    color: var(--text);
  }

  .server-settings-content {
    flex: 1 1 auto;
    max-width: none;
  }

  .server-settings-content-inner {
    padding: 24px 16px calc(var(--safe-bottom) + 24px);
  }

  .server-settings-close-col {
    position: absolute;
    top: calc(var(--safe-top) + 6px);
    right: 8px;
    z-index: 10;
  }

  .server-settings-close-btn {
    width: 36px;
    height: 36px;
    background: none;
    border: none;
  }

  .server-settings-close-btn span {
    display: none;
  }
}

/* --- Select inside toggle rows --- */
.settings-select {
  flex-shrink: 0;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  outline: none;
  cursor: pointer;
}

/* --- Layout switcher (Bubble / Channel) --- */
.layout-switcher {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 4px 0;
}
.layout-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 22px 16px;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
  color: var(--text);
  font-family: inherit;
  text-align: center;
}
.layout-option:hover {
  border-color: var(--text-dimmer);
  background: var(--bg-alt);
}
.layout-option:active {
  transform: scale(0.97);
}
.layout-option.selected {
  border-color: var(--accent);
  background: var(--accent-8);
}
.layout-option-icon {
  font-size: 28px;
  line-height: 1;
  margin-bottom: 2px;
}
.layout-option-label {
  font-weight: 700;
  font-size: 14px;
  color: var(--text);
}
.layout-option-desc {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.45;
  margin-top: 2px;
}