/* =========================================================
   SQLite DB Admin - single stylesheet
   Themes: light (default), dark, high-contrast
   Font-size steps: sm, md (default), lg, xl, xxl
   Mobile-first, no external CSS libs.
   ========================================================= */

:root {
  --font-body: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
  --font-mono: ui-monospace, 'JetBrains Mono', Menlo, Consolas, monospace;

  /* base font size, overridden by data-fs on <html> */
  --fs-base: 15px;

  /* Light theme */
  --bg:        #f5f6f8;
  --bg-elev:  #ffffff;
  --bg-alt:   #eef1f5;
  --border:   #d9dde3;
  --text:     #1a2130;
  --muted:    #5a6473;
  --primary:  #2f5cff;
  --primary-fg:#ffffff;
  --danger:   #d0342c;
  --success:  #1a8a4a;
  --shadow:   0 4px 16px rgba(20,30,60,.08);
  --focus:    #2f5cff;
  --row-hover:#f0f4ff;
}

html[data-theme="dark"] {
  --bg:        #0f141c;
  --bg-elev:  #17202b;
  --bg-alt:   #1c2732;
  --border:   #2b3846;
  --text:     #e6ecf3;
  --muted:    #9aa7b6;
  --primary:  #4c7dff;
  --primary-fg:#ffffff;
  --danger:   #ff6a5f;
  --success:  #4ecb8b;
  --shadow:   0 4px 20px rgba(0,0,0,.4);
  --focus:    #7aa0ff;
  --row-hover:#1f2b3a;
}

html[data-theme="hc"] {
  --bg:        #000000;
  --bg-elev:  #000000;
  --bg-alt:   #000000;
  --border:   #ffffff;
  --text:     #ffff00;
  --muted:    #ffffff;
  --primary:  #ffff00;
  --primary-fg:#000000;
  --danger:   #ff5555;
  --success:  #55ff55;
  --shadow:   none;
  --focus:    #ffff00;
  --row-hover:#222200;
}

/* Font-size scale */
html[data-fs="sm"]  { --fs-base: 13px; }
html[data-fs="md"]  { --fs-base: 15px; }
html[data-fs="lg"]  { --fs-base: 17px; }
html[data-fs="xl"]  { --fs-base: 19px; }
html[data-fs="xxl"] { --fs-base: 22px; }

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.45;
  min-height: 100vh;
}

html[data-theme="hc"] * { text-shadow: none !important; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: var(--primary-fg);
  padding: 8px 12px;
  z-index: 999;
}
.skip-link:focus { left: 8px; top: 8px; }

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .75rem 1.25rem;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: .6rem; }
.brand .logo {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  background: var(--primary); color: var(--primary-fg);
  border-radius: 8px; font-weight: 700;
}
.brand h1 { font-size: 1.15rem; margin: 0; letter-spacing: .2px; }

.a11y { display: flex; gap: .75rem; flex-wrap: wrap; }
.a11y .group {
  display: inline-flex; gap: .25rem;
  padding: .2rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
}

/* Buttons */
.icon-btn, .btn {
  font: inherit;
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border);
  padding: .45rem .75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, transform .05s ease;
}
.icon-btn { background: transparent; border-color: transparent; }
.icon-btn:hover, .btn:hover { background: var(--bg-alt); }
.btn.primary { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.danger  { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn:active, .icon-btn:active { transform: translateY(1px); }
button:focus-visible, select:focus-visible, input:focus-visible, .file-btn:focus-within {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}
.file-btn { position: relative; }

/* Layout */
.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1rem;
  padding: 1rem;
}
@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

.sidebar {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  height: fit-content;
  position: sticky;
  top: 72px;
}
.sidebar .lbl,
.sidebar .section-title {
  display: block;
  font-weight: 600;
  margin-bottom: .35rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  font-size: .8em;
}
.sidebar section + section { margin-top: 1rem; }

#db-select, #page-size, input[type="search"], .row-form input, .row-form select, .row-form textarea {
  width: 100%;
  padding: .55rem .7rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
}

.table-list { list-style: none; padding: 0; margin: 0; max-height: 60vh; overflow: auto; }
.table-list li {
  padding: .5rem .7rem;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
}
.table-list li:hover { background: var(--bg-alt); }
.table-list li.active {
  background: var(--primary);
  color: var(--primary-fg);
  border-color: var(--primary);
}
.table-list li.active .count { color: var(--primary-fg); opacity: .85; }
.table-list .count { color: var(--muted); font-size: .85em; margin-left: .35rem; }

/* Content panel */
.content { min-width: 0; }
.empty {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--muted);
  background: var(--bg-elev);
  border: 1px dashed var(--border);
  border-radius: 12px;
}
.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: .75rem;
}
.panel-head h2 { margin: 0 0 .15rem; }
.panel-head .actions {
  display: flex; gap: .5rem; flex-wrap: wrap; align-items: center;
}
.panel-head input[type="search"] { width: 180px; }
@media (max-width: 640px) {
  .panel-head input[type="search"] { width: 100%; }
  .panel-head .actions { width: 100%; }
}
.muted { color: var(--muted); }

/* Data table */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  font-variant-numeric: tabular-nums;
}
thead th {
  position: sticky; top: 0;
  text-align: left;
  padding: .55rem .65rem;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  font-size: .85em;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
thead th.pk::after { content: " ★"; color: var(--primary); }
thead th .sort { opacity: .5; margin-left: .25rem; }
tbody td {
  padding: .5rem .65rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  max-width: 380px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
tbody tr:hover { background: var(--row-hover); }
tbody td.actions-cell { white-space: nowrap; }
tbody td.actions-cell .btn { padding: .25rem .5rem; margin-right: .25rem; font-size: .9em; }

.pager {
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
  padding-top: .75rem;
}
.pager .page-size { margin-left: auto; display: flex; align-items: center; gap: .35rem; }
.pager .page-size select { width: auto; padding: .35rem .5rem; }

/* Modal */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.5);
  display: grid; place-items: center;
  padding: 1rem;
  z-index: 100;
}
.modal[hidden] { display: none; }
.modal-card {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  width: min(720px, 100%);
  max-height: 90vh;
  overflow: auto;
  box-shadow: var(--shadow);
}
.modal-card.small { width: min(420px, 100%); }
.modal-head { display: flex; justify-content: space-between; align-items: center; gap: .5rem; }
.modal-head h3 { margin: 0; }
.modal-foot { display: flex; justify-content: flex-end; gap: .5rem; margin-top: 1rem; }

.row-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: .75rem;
  margin-top: 1rem;
}
.row-form .field { display: flex; flex-direction: column; gap: .3rem; }
.row-form label { font-weight: 600; font-size: .9em; }
.row-form label .type { color: var(--muted); font-weight: 400; font-size: .85em; }
.row-form label .req { color: var(--danger); margin-left: .2rem; }
.row-form textarea { min-height: 80px; resize: vertical; }
.row-form .pk-lock { background: var(--bg-alt); }

/* Toast */
.toast {
  position: fixed; bottom: 1rem; left: 50%;
  transform: translateX(-50%);
  background: var(--text); color: var(--bg);
  padding: .6rem 1rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  z-index: 200;
  max-width: 90vw;
}
.toast.err { background: var(--danger); color: #fff; }
.toast.ok  { background: var(--success); color: #fff; }