/* AI Alarm — design system. Tokens lifted from sister project AI Notes
 * for visual continuity. Plain CSS — no Tailwind, no preprocessor. Every
 * page on the app links this file before its inline page styles, so the
 * variables and component classes are available everywhere.
 *
 * Theming: dark by default; <html class="light"> flips it. The user's
 * preference lands in localStorage as `aialarm-theme`.
 */

:root {
  color-scheme: dark;

  --bg-page:       #030712;
  --bg-page-90:    rgba(3, 7, 18, 0.9);
  --bg-card:       #111827;
  --bg-input:      #1f2937;
  --bg-badge:      #1e293b;

  --border:        #1f2937;
  --border-light:  #374151;

  --text-primary:   #f3f4f6;
  --text-heading:   #f9fafb;
  --text-secondary: #d1d5db;
  --text-tertiary:  #9ca3af;
  --text-dim:       #6b7280;
  --text-muted:     #4b5563;

  --accent:        #6366f1;
  --accent-hover:  #818cf8;

  --success-fg:    #6ee7a8;
  --success-bg:    #064e3b;
  --warn-fg:       #fbbf24;
  --warn-bg:       #422006;
  --danger-fg:     #f87171;
  --danger-bg:     #450a0a;

  --comp-bg:       #064e3b;
  --comp-fg:       #6ee7a8;

  --hover-bg:      rgba(31, 41, 55, 0.5);
  --shadow-card:   0 1px 2px rgba(0,0,0,0.3);
  --radius-card:   1rem;
  --radius-input:  0.75rem;
  --radius-pill:   999px;
}

html.light {
  color-scheme: light;

  --bg-page:       #f8fafc;
  --bg-page-90:    rgba(248, 250, 252, 0.9);
  --bg-card:       #ffffff;
  --bg-input:      #f1f5f9;
  --bg-badge:      #e2e8f0;

  --border:        #e2e8f0;
  --border-light:  #cbd5e1;

  --text-primary:   #0f172a;
  --text-heading:   #0f172a;
  --text-secondary: #1e293b;
  --text-tertiary:  #475569;
  --text-dim:       #64748b;
  --text-muted:     #94a3b8;

  --accent:        #6366f1;
  --accent-hover:  #4f46e5;

  --success-fg:    #047857;
  --success-bg:    #d1fae5;
  --warn-fg:       #b45309;
  --warn-bg:       #fef3c7;
  --danger-fg:     #b91c1c;
  --danger-bg:     #fee2e2;

  --comp-bg:       #d1fae5;
  --comp-fg:       #065f46;

  --hover-bg:      rgba(226, 232, 240, 0.6);
  --shadow-card:   0 1px 2px rgba(15,23,42,0.04);
}

* { box-sizing: border-box; }

html, body {
  background: var(--bg-page);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
               Ubuntu, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  min-height: 100vh;
}

body {
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ─────────── App-bar ─────────── */
.appbar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: var(--bg-page-90);
  border-bottom: 1px solid var(--border);
}
.appbar-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .85rem .9rem;
}
.appbar h1 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
  color: var(--text-heading);
  flex: 1;
  min-width: 0;
}
.appbar .icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem; height: 2.2rem;
  border-radius: .65rem;
  background: transparent;
  color: var(--text-tertiary);
  border: 0;
  cursor: pointer;
  transition: background-color .15s, color .15s;
}
.appbar .icon-btn:hover { background: var(--hover-bg); color: var(--text-primary); }
.appbar .icon-btn svg { width: 1.25rem; height: 1.25rem; }

/* ─────────── Page container ─────────── */
.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem .9rem 4rem;
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

/* ─────────── Section card ─────────── */
.section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 1rem;
  display: grid;
  gap: .75rem;
  box-shadow: var(--shadow-card);
}
.section-title {
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-tertiary);
  margin: 0;
}
.section-sub {
  font-size: .78rem;
  color: var(--text-dim);
  line-height: 1.45;
  margin: 0;
}

/* Row: label on left, control on right */
.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.row-label { flex: 1; min-width: 0; }
.row-label .lbl-title  { font-size: .82rem; font-weight: 500; color: var(--text-secondary); margin: 0 0 .15rem; }
.row-label .lbl-sub    { font-size: .72rem; color: var(--text-dim); margin: 0; line-height: 1.4; }

.divider {
  height: 1px;
  background: var(--border);
  margin: .25rem 0;
}

/* ─────────── Inputs ─────────── */
input[type="text"], input[type="email"], input[type="password"],
input[type="time"], input[type="number"], input[type="search"],
select, textarea {
  font: inherit;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-input);
  padding: .6rem .75rem;
  width: 100%;
  outline: none;
  transition: border-color .15s, background-color .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 3.5rem; line-height: 1.4; }

label.field {
  display: grid;
  gap: .35rem;
  font-size: .72rem;
  color: var(--text-tertiary);
}

.field-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .7rem;
}
@media (max-width: 420px) {
  .field-grid-2 { grid-template-columns: 1fr; }
}

/* ─────────── Buttons ─────────── */
.btn {
  font: inherit;
  font-weight: 600;
  font-size: .85rem;
  background: var(--accent);
  color: #fff;
  border: 0;
  padding: .65rem 1rem;
  border-radius: var(--radius-input);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  justify-content: center;
  transition: background-color .15s, transform .05s;
}
.btn:hover { background: var(--accent-hover); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .55; cursor: progress; }

.btn-ghost {
  background: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}
.btn-ghost:hover {
  background: var(--bg-input);
  border-color: var(--accent);
  color: var(--text-primary);
}
.btn-warn {
  background: var(--warn-bg);
  color: var(--warn-fg);
  border: 1px solid var(--warn-fg);
}
.btn-warn:hover { background: var(--warn-fg); color: var(--warn-bg); }
.btn-danger {
  background: var(--danger-bg);
  color: var(--danger-fg);
  border: 1px solid var(--danger-fg);
}
.btn-danger:hover { background: var(--danger-fg); color: #fff; }

.btn-sm { padding: .35rem .65rem; font-size: .75rem; }

/* ─────────── Toggle switch (iOS-style) ─────────── */
/* Native <input type="checkbox" class="toggle"> styled to look like a
 * pill with a sliding knob. Using a real checkbox dodges every quirk
 * of fake button-toggles on WebView (pointer-events, custom click
 * handlers that throw silently, etc.) — the change event always fires.
 */
.toggle {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex-shrink: 0;
  width: 2.6rem; height: 1.5rem;
  border-radius: var(--radius-pill);
  background: var(--border-light);
  border: 0;
  margin: 0;
  cursor: pointer;
  transition: background-color .2s;
  display: inline-block;
  vertical-align: middle;
}
.toggle::after {
  content: "";
  position: absolute;
  top: 0.15rem; left: 0.15rem;
  width: 1.2rem; height: 1.2rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.3);
  transition: transform .2s;
}
.toggle:checked          { background: var(--accent); }
.toggle:checked::after   { transform: translateX(1.1rem); }
.toggle:disabled         { opacity: .55; cursor: not-allowed; }

/* ─────────── Pills / badges ─────────── */
.pill {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .15rem .55rem;
  border-radius: var(--radius-pill);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .03em;
  background: var(--bg-badge);
  color: var(--text-tertiary);
  border: 1px solid var(--border);
}
.pill-accent     { background: var(--bg-input); color: var(--accent); border-color: var(--accent); }
.pill-warn       { background: var(--warn-bg);  color: var(--warn-fg); border-color: var(--warn-fg); }
.pill-success    { background: var(--success-bg); color: var(--success-fg); border-color: var(--success-fg); }
.pill-danger     { background: var(--danger-bg); color: var(--danger-fg); border-color: var(--danger-fg); }
.pill-comp       { background: var(--comp-bg);  color: var(--comp-fg); border-color: transparent; }

/* ─────────── Status text under inputs ─────────── */
.status {
  font-size: .8rem;
  min-height: 1.1rem;
  color: var(--text-dim);
  white-space: pre-wrap;
  word-break: break-word;
}
.status.ok  { color: var(--success-fg); }
.status.err { color: var(--danger-fg); }

/* ─────────── Toast ─────────── */
.toast {
  position: fixed;
  bottom: calc(env(safe-area-inset-bottom) + 1.5rem);
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  padding: .55rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  font-size: .82rem;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
  cursor: pointer;
  animation: toast-in .2s ease-out;
}
@keyframes toast-in {
  from { opacity: 0; transform: translate(-50%, .5rem); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ─────────── Stat card (admin) ─────────── */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: .65rem;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: .75rem;
  padding: .85rem;
}
.stat-card .lbl {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-dim);
  margin: 0 0 .3rem;
}
.stat-card .val {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1;
}
.stat-card .sub {
  font-size: .7rem;
  color: var(--text-dim);
  margin: .35rem 0 0;
}

/* ─────────── Table (admin) ─────────── */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: .75rem;
}
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: .82rem;
}
table.data th, table.data td {
  padding: .65rem .7rem;
  text-align: left;
  white-space: nowrap;
}
table.data thead th {
  font-size: .65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-tertiary);
  background: var(--bg-page);
  position: sticky;
  top: 0;
}
table.data tbody tr { border-top: 1px solid var(--border); }
table.data tbody tr:hover { background: var(--hover-bg); }
table.data .num { text-align: right; font-variant-numeric: tabular-nums; }
table.data .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .76rem; color: var(--text-secondary); }

/* ─────────── Empty / loading ─────────── */
.empty {
  text-align: center;
  color: var(--text-dim);
  padding: 2rem .5rem;
  font-size: .85rem;
}
.spinner {
  width: 1.6rem; height: 1.6rem;
  border-radius: 50%;
  border: 3px solid var(--border-light);
  border-top-color: var(--accent);
  animation: spin .9s linear infinite;
  margin: 1rem auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─────────── Helpers ─────────── */
.flex          { display: flex; }
.flex-col      { display: flex; flex-direction: column; }
.flex-center   { display: flex; align-items: center; justify-content: center; }
.gap-2         { gap: .5rem; }
.gap-3         { gap: .75rem; }
.mt-2          { margin-top: .5rem; }
.mt-3          { margin-top: .75rem; }
.muted         { color: var(--text-dim); }
.text-sm       { font-size: .82rem; }
.text-xs       { font-size: .72rem; }
.text-center   { text-align: center; }
.truncate      { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hide          { display: none !important; }
