/* ============================================================
   Theme — dark-first charcoal/lime (matches original UI)
   ============================================================ */
:root {
  --color-bg:             #161616;
  --color-surface:        #1e1e1e;
  --color-surface-hover:  #2a2a2a;
  --color-sidebar-bg:     #1a1a1a;

  --color-text:           #f0f0ec;
  --color-text-secondary: #a0a09a;
  --color-text-muted:     #6a6a65;

  --color-border:         #2e2e2c;
  --color-border-light:   #252524;

  --color-primary:        #c8ee44;
  --color-primary-hover:  #b5d83e;
  --color-primary-light:  #2a3a10;
  --color-primary-text:   #1a1a1a;

  --color-danger:         #f87171;
  --color-danger-hover:   #ef4444;

  --sidebar-width:        280px;
  --transition-fast:      150ms ease;
  --transition-normal:    250ms ease;
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
button { cursor: pointer; border: none; background: none; color: inherit; font: inherit; }
input, button, select, textarea { font: inherit; color: inherit; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* ============================================================
   Auth pages (login / register)
   ============================================================ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 36px 32px;
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.auth-logo h1 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
}

.auth-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--color-text);
}

.auth-error {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: var(--color-danger);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 0.875rem;
  margin-bottom: 16px;
}

.auth-form { display: flex; flex-direction: column; gap: 16px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.form-group input {
  padding: 10px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.9375rem;
  color: var(--color-text);
  transition: border-color var(--transition-fast);
  outline: none;
}

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

.btn-primary {
  padding: 10px 16px;
  background: var(--color-primary);
  color: var(--color-primary-text);
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9375rem;
  transition: background var(--transition-fast);
  margin-top: 4px;
}
.btn-primary:hover { background: var(--color-primary-hover); }

.auth-switch {
  margin-top: 20px;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* ============================================================
   Dashboard layout
   ============================================================ */
.layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-sidebar-bg);
  border-right: 1px solid var(--color-border);
  flex-shrink: 0;
}

.sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

/* ---- Collection list ---- */
.sidebar-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

/* ---- Collection item (details/summary) ---- */
.collection-item {
  margin: 1px 4px;
}

.collection-item > summary { list-style: none; }
.collection-item > summary::-webkit-details-marker { display: none; }

.collection-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--transition-fast);
  user-select: none;
  position: relative;
}

.collection-header:hover { background: var(--color-surface-hover); }

.chevron {
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

details[open] > summary .chevron { transform: rotate(90deg); }

.collection-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.collection-count {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 400;
  flex-shrink: 0;
}

/* ---- Hover action buttons ---- */
.item-actions {
  display: none;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.collection-header:hover .item-actions,
.wiki-item:hover .item-actions { display: flex; }

/* Hide count when actions are shown */
.collection-header:hover .collection-count { display: none; }

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  color: var(--color-text-muted);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.action-btn:hover { background: var(--color-surface); color: var(--color-text); }
.action-btn-danger:hover { color: var(--color-danger); }

.upload-label { cursor: pointer; }

/* ---- Wiki list ---- */
.wiki-list { padding: 2px 0 4px 0; }

.wiki-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px 5px 26px;
  border-radius: 6px;
  margin: 1px 4px;
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
  position: relative;
}

.wiki-item:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.wiki-icon { flex-shrink: 0; color: var(--color-text-muted); }

.wiki-link {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: inherit;
  text-decoration: none;
}

.wiki-link:hover { text-decoration: none; }

/* ---- Add collection form ---- */
.add-collection-form {
  display: flex;
  gap: 6px;
  padding: 10px 12px;
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.add-collection-form input {
  flex: 1;
  padding: 7px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.8125rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition-fast);
}

.add-collection-form input:focus { border-color: var(--color-primary); }
.add-collection-form input::placeholder { color: var(--color-text-muted); }

.add-collection-form button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 6px;
  flex-shrink: 0;
  transition: background var(--transition-fast);
}

.add-collection-form button:hover { background: var(--color-primary); color: var(--color-primary-text); }

/* ---- Sidebar footer ---- */
.sidebar-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.footer-email {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-logout {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding: 5px 8px;
  border-radius: 5px;
  transition: background var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
}

.btn-logout:hover { background: var(--color-surface-hover); color: var(--color-text); }

/* ---- Main content area ---- */
.main-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
}

.welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  padding: 40px;
}

.welcome h2 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.welcome p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ---- Empty state ---- */
.empty-state {
  padding: 20px 16px;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.empty-hint { color: var(--color-text-muted); opacity: 0.6; margin-top: 4px; }

/* ---- HTMX indicator ---- */
.htmx-indicator { opacity: 0; transition: opacity 200ms ease; }
.htmx-request .htmx-indicator { opacity: 1; }