/* DJ's to-do — one stylesheet for auth, board and settings pages.
   Dark by default; [data-theme="light"] overrides below.
   Animation rule: only transform/opacity animate on interaction-critical
   paths (checks, drags, toasts). grid-template-rows handles collapsibles so
   nothing ever animates `height` directly. */

:root {
  --bg: #0a0e13;
  --bg-2: #0d1218;
  --card: #131a22;
  --card-hover: #17202a;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #eef3f7;
  --text-dim: #93a2b1;
  --text-faint: #5c6b7a;
  --accent: #7ef7d0;
  --accent-strong: #4be3ac;
  --accent-2: #9b8cff;
  --danger: #ff6b6b;
  --warn: #ffb84d;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.6);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 9px;
  --font-display: "Outfit", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.22, 0.8, 0.32, 1);
  color-scheme: dark;
}

html[data-theme="light"] {
  --bg: #f3f5f8;
  --bg-2: #eceef2;
  --card: #ffffff;
  --card-hover: #fbfbfd;
  --border: rgba(16, 24, 32, 0.09);
  --border-strong: rgba(16, 24, 32, 0.18);
  --text: #10161d;
  --text-dim: #55636f;
  --text-faint: #8b97a3;
  --accent: #0f9d75;
  --accent-strong: #0c8563;
  --accent-2: #6a56e0;
  --danger: #d92626;
  --warn: #b5750a;
  --shadow: 0 20px 50px -24px rgba(20, 30, 40, 0.25);
  color-scheme: light;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
}

body {
  font-family: var(--font-display);
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  padding: 0 16px;
}

a { color: inherit; }

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

svg { display: block; }

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(600px 400px at 15% -5%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    radial-gradient(500px 380px at 100% 0%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 55%);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--card);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s var(--ease-spring), background-color 0.15s var(--ease-smooth), border-color 0.15s var(--ease-smooth), box-shadow 0.15s var(--ease-smooth);
}
.btn:hover { transform: translateY(-1px); background: var(--card-hover); }
.btn:active { transform: translateY(0) scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #06110d;
  border-color: transparent;
  box-shadow: 0 8px 24px -10px color-mix(in srgb, var(--accent) 60%, transparent);
}
.btn-primary:hover { box-shadow: 0 10px 28px -8px color-mix(in srgb, var(--accent) 70%, transparent); }

.btn-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, var(--border-strong)); }
.btn-danger:hover { background: color-mix(in srgb, var(--danger) 10%, var(--card)); }

.btn-block { width: 100%; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: transform 0.15s var(--ease-spring), background-color 0.15s var(--ease-smooth), color 0.15s var(--ease-smooth);
}
.icon-btn:hover { background: var(--card); color: var(--text); transform: translateY(-1px); }
.icon-btn:active { transform: scale(0.92); }

/* ---------- auth pages ---------- */

.auth-page { padding: 0; }

.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow);
}

.auth-card.enter { animation: card-in 0.5s var(--ease-smooth) both; }

@keyframes card-in {
  from { opacity: 0; transform: translateY(14px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-mark { margin-bottom: 18px; }

.auth-card h1 { font-size: 22px; margin: 0 0 8px; letter-spacing: -0.01em; }
.auth-sub { color: var(--text-dim); margin: 0 0 24px; font-size: 14px; }
.auth-error {
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  color: var(--danger);
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 13px;
  margin: 0 0 16px;
}

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

.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-dim); font-weight: 600; }
.field input, .field textarea, .field select {
  border: 1px solid var(--border-strong);
  background: var(--bg-2);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 11px 13px;
  font-size: 15px;
  transition: border-color 0.15s var(--ease-smooth), box-shadow 0.15s var(--ease-smooth);
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
  outline: none;
}

.hint-row { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-faint); margin-top: -6px; }
.hint { transition: color 0.2s var(--ease-smooth); }
.hint.ok { color: var(--accent); }
.hint.bad { color: var(--danger); }

/* ---------- app shell ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 4px;
  max-width: 760px;
  margin: 0 auto;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 75%, transparent);
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06110d;
  font-weight: 800;
}

.stats { display: flex; align-items: center; gap: 10px; margin-left: auto; }

.ring-wrap { position: relative; width: 40px; height: 40px; flex: none; }
.ring { width: 40px; height: 40px; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: var(--border); stroke-width: 4; }
.ring-fg {
  fill: none;
  stroke: url(#ring-gradient);
  stroke: var(--accent);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 113;
  stroke-dashoffset: 113;
  transition: stroke-dashoffset 0.6s var(--ease-spring);
}
.ring-count {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

.stat-text { display: none; flex-direction: column; line-height: 1.2; }
.stat-sub { font-size: 11px; color: var(--text-faint); }

@media (min-width: 520px) {
  .stat-text { display: flex; }
}

.topbar-actions { display: flex; align-items: center; gap: 4px; }
#logout-form { display: contents; }

.search-bar {
  max-width: 760px;
  margin: 0 auto 8px;
  animation: drop-in 0.25s var(--ease-smooth) both;
}
@keyframes drop-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}
.search-bar input {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: var(--card);
  color: var(--text);
}
.search-bar input:focus { border-color: var(--accent); outline: none; }

.board {
  max-width: 760px;
  margin: 0 auto;
  padding: 8px 4px 120px;
}

/* ---------- quick add ---------- */

.quick-add {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: var(--shadow);
  transition: border-color 0.2s var(--ease-smooth), box-shadow 0.2s var(--ease-smooth);
}
.quick-add:focus-within { border-color: var(--accent); }
.quick-add input[type="text"] {
  flex: 1;
  min-width: 0;
  border: none;
  background: transparent;
  padding: 10px 12px;
  font-size: 15px;
}
.quick-add input[type="text"]:focus { outline: none; }
.quick-add select {
  border: 1px solid var(--border);
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  padding: 0 10px;
  max-width: 40%;
}

/* ---------- groups ---------- */

.group {
  margin-bottom: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--card);
  overflow: hidden;
  transition: border-color 0.2s var(--ease-smooth);
}

.group-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  color: var(--text);
}
.group-header:hover { background: var(--card-hover); }

.chevron { transition: transform 0.3s var(--ease-spring); color: var(--text-faint); flex: none; }
.group.open .chevron { transform: rotate(90deg); }

.group-title { margin: 0; font-size: 15px; font-weight: 600; flex: 1; }
.group-count {
  font-size: 12px;
  color: var(--text-faint);
  background: var(--bg-2);
  padding: 3px 9px;
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
}

.group-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.38s var(--ease-smooth);
}
.group.open .group-body { grid-template-rows: 1fr; }
.group-body-inner { overflow: hidden; }

.item-list { list-style: none; margin: 0; padding: 0 8px 8px; }

/* ---------- item rows ---------- */

.item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 8px;
  border-radius: var(--radius-sm);
  transition: background-color 0.15s var(--ease-smooth), opacity 0.35s var(--ease-smooth), transform 0.35s var(--ease-smooth);
}
.item:hover { background: var(--bg-2); }
.item.dragging {
  opacity: 0.85;
  box-shadow: var(--shadow);
  background: var(--card-hover);
  z-index: 5;
  position: relative;
}
.item.entering { animation: item-in 0.32s var(--ease-smooth) both; }
@keyframes item-in {
  from { opacity: 0; transform: translateY(-6px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.item.leaving { opacity: 0; transform: scale(0.96); }
.item.kbd-focused { outline: 2px solid var(--accent); outline-offset: -2px; background: var(--bg-2); }

.drag-handle {
  flex: none;
  width: 20px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: var(--text-faint);
  cursor: grab;
  opacity: 0;
  transition: opacity 0.15s var(--ease-smooth);
  touch-action: none;
}
.item:hover .drag-handle, .item:focus-within .drag-handle { opacity: 1; }
.drag-handle:active { cursor: grabbing; }

.check {
  flex: none;
  width: 24px;
  height: 24px;
  margin-top: 1px;
  border-radius: 8px;
  border: 2px solid var(--border-strong);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: transparent;
  transition: transform 0.25s var(--ease-spring), border-color 0.2s var(--ease-smooth), background-color 0.2s var(--ease-smooth);
}
.check:hover { transform: scale(1.08); border-color: var(--accent); }
.check:active { transform: scale(0.9); }
.check .check-mark { stroke-dasharray: 24; stroke-dashoffset: 24; transition: stroke-dashoffset 0.3s var(--ease-smooth) 0.05s; }
.item.done .check {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
  color: #06110d;
  transform: scale(1);
}
.item.done .check .check-mark { stroke-dashoffset: 0; }
.item.just-checked .check { animation: pop 0.42s var(--ease-spring); }
@keyframes pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.28); }
  100% { transform: scale(1); }
}

.item-main {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 2px;
  cursor: pointer;
}

.item-title {
  position: relative;
  word-break: break-word;
}
.item-title::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  height: 1.5px;
  width: 100%;
  background: var(--text-faint);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-smooth);
}
.item.done .item-title { color: var(--text-faint); }
.item.done .item-title::after { transform: scaleX(1); }

.gate-badge {
  font-size: 11px;
  font-weight: 700;
  color: #06110d;
  background: linear-gradient(135deg, var(--warn), #ff9d4d);
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.empty-state { text-align: center; color: var(--text-faint); padding: 40px 0; }

/* ---------- undo toast ---------- */

.undo-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%) translateY(0);
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--card);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow);
  border-radius: var(--radius-md);
  padding: 12px 12px 12px 18px;
  z-index: 40;
  overflow: hidden;
  animation: toast-in 0.35s var(--ease-spring) both;
}
@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(16px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.undo-toast.leaving { animation: toast-out 0.25s var(--ease-smooth) both; }
@keyframes toast-out {
  to { opacity: 0; transform: translateX(-50%) translateY(10px); }
}
.undo-toast::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 100%;
  background: var(--accent);
  transform-origin: left;
  animation: toast-progress 8s linear forwards;
}
@keyframes toast-progress {
  from { transform: scaleX(1); }
  to { transform: scaleX(0); }
}
.undo-btn {
  border: none;
  background: transparent;
  color: var(--accent);
  font-weight: 700;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
  transition: background-color 0.15s var(--ease-smooth);
}
.undo-btn:hover { background: color-mix(in srgb, var(--accent) 14%, transparent); }

/* ---------- keyboard hint ---------- */

.kbd-hint {
  position: fixed;
  right: 18px;
  bottom: 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 34px 10px 14px;
  font-size: 12px;
  color: var(--text-dim);
  box-shadow: var(--shadow);
  z-index: 15;
  animation: card-in 0.4s var(--ease-smooth) 0.4s both;
}
.kbd-hint[hidden] { display: none; }
.kbd-row { margin-top: 4px; display: flex; gap: 10px; flex-wrap: wrap; }
kbd {
  background: var(--bg-2);
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  padding: 1px 6px;
  font-size: 11px;
  font-family: inherit;
}
.kbd-hint-close {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 22px;
  height: 22px;
  border: none;
  background: transparent;
  color: var(--text-faint);
  cursor: pointer;
  border-radius: 6px;
  font-size: 14px;
}
.kbd-hint-close:hover { background: var(--bg-2); }

/* ---------- item detail modal ---------- */

.item-detail { position: fixed; inset: 0; z-index: 50; display: flex; align-items: flex-end; justify-content: center; }
@media (min-width: 640px) { .item-detail { align-items: center; } }
.item-detail[hidden] { display: none; }
.item-detail-backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, black 55%, transparent);
  backdrop-filter: blur(2px);
  animation: fade-in 0.2s var(--ease-smooth) both;
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.item-detail-panel {
  position: relative;
  width: 100%;
  max-width: 520px;
  max-height: 88vh;
  overflow-y: auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: var(--shadow);
  padding: 28px 22px 22px;
  animation: sheet-in 0.32s var(--ease-smooth) both;
}
@media (min-width: 640px) {
  .item-detail-panel { border-radius: var(--radius-lg); }
}
@keyframes sheet-in {
  from { opacity: 0; transform: translateY(24px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.detail-close { position: absolute; top: 12px; right: 12px; }
.detail-title-input {
  width: 100%;
  border: none;
  background: transparent;
  font-size: 20px;
  font-weight: 700;
  padding: 4px 30px 12px 0;
  border-bottom: 1px solid var(--border);
}
.detail-title-input:focus { outline: none; border-color: var(--accent); }
.detail-meta { display: flex; gap: 18px; align-items: center; margin: 16px 0; flex-wrap: wrap; }
.detail-select-label, .detail-gate-toggle, .detail-gate-note-wrap, .detail-notes-label {
  display: flex; flex-direction: column; gap: 6px; font-size: 12px; color: var(--text-dim); font-weight: 600;
}
.detail-gate-toggle { flex-direction: row; align-items: center; gap: 8px; }
.detail-gate-note-wrap { margin-bottom: 14px; }
.detail-meta select, .detail-gate-note-wrap input, .detail-notes-label textarea {
  border: 1px solid var(--border-strong);
  background: var(--bg-2);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  color: var(--text);
}
.detail-notes-label textarea { resize: vertical; font-family: inherit; }
.detail-actions { display: flex; justify-content: space-between; margin-top: 18px; }

/* ---------- settings page ---------- */

.settings-board { display: flex; flex-direction: column; gap: 16px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
}
.card h2 { margin: 0 0 6px; font-size: 16px; }
.card-sub { color: var(--text-dim); font-size: 13px; margin: 0 0 14px; }
.settings-form { display: flex; flex-direction: column; gap: 14px; max-width: 360px; }
.form-note { font-size: 13px; margin: 4px 0 0; min-height: 18px; }
.form-note.ok { color: var(--accent); }
.form-note.bad { color: var(--danger); }
.token-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.token-row input { flex: 1; min-width: 200px; border: 1px solid var(--border-strong); background: var(--bg-2); border-radius: var(--radius-sm); padding: 10px 12px; color: var(--text); font-family: monospace; }
.file-btn { position: relative; }
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; max-width: 360px; }
.switch-row input { width: 40px; height: 24px; }

/* ---------- misc ---------- */

.item-title code, .detail-notes-label code { background: var(--bg-2); padding: 1px 5px; border-radius: 5px; font-size: 0.9em; }

@media (max-width: 480px) {
  .topbar { padding: 14px 2px; gap: 10px; }
  .brand-name { display: none; }
  .quick-add { flex-wrap: wrap; }
  .quick-add select { max-width: none; flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    transition-duration: 0.001s !important;
    scroll-behavior: auto !important;
  }
}