/* ============================================
   TaskHub — design tokens
   ============================================ */
:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color-scheme: light;

  --bg: #fafafd;
  --surface: #ffffff;
  --sidebar: #f6f5fa;
  --subtle: #f4f3f9;
  --text: #2a2a38;
  --muted: #8f8ea0;
  --soft: #5f5e72;
  --line: #e9e8f1;
  --line-strong: #d9d7e6;

  --accent: #5d50d6;
  --accent-strong: #4a3fc4;
  --accent-soft: #efedfc;
  --accent-ring: rgba(93, 80, 214, .16);
  --red: #c4546f;
  --green: #2f8a6d;
  --amber: #b8862f;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;

  --shadow-xs: 0 1px 2px rgba(24, 20, 48, .05);
  --shadow-sm: 0 1px 2px rgba(24, 20, 48, .04), 0 2px 8px rgba(24, 20, 48, .05);
  --shadow-md: 0 2px 8px rgba(24, 20, 48, .06), 0 12px 32px rgba(24, 20, 48, .08);
  --shadow-lg: 0 8px 24px rgba(24, 20, 48, .10), 0 32px 80px rgba(24, 20, 48, .16);

  /* motion */
  --e-out: cubic-bezier(.16, 1, .3, 1);
  --e-in-out: cubic-bezier(.65, 0, .35, 1);
  --e-spring: cubic-bezier(.34, 1.42, .44, 1);
  --d-fast: .15s;
  --d-med: .3s;
  --d-slow: .5s;
}

/* ============================================
   Base
   ============================================ */
* { box-sizing: border-box }
body { margin: 0; background: var(--bg); color: var(--text) }
button, input, select, textarea { font: inherit }
button { cursor: pointer }
button:disabled { opacity: .5; cursor: wait }
button, a, input, select, textarea { outline: none }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
button { color: inherit }
a { color: var(--accent); text-decoration: none }
h1, h2, h3, p { margin: 0 }
::selection { background: color-mix(in srgb, var(--accent) 18%, transparent) }

::-webkit-scrollbar { width: 10px; height: 10px }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 8px; border: 2px solid transparent; background-clip: content-box }
::-webkit-scrollbar-thumb:hover { background: var(--muted); border: 2px solid transparent; background-clip: content-box }
::-webkit-scrollbar-track { background: transparent }
::-webkit-scrollbar-corner { background: transparent }

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--d-fast) var(--e-out), box-shadow var(--d-fast) var(--e-out);
}
input:hover, select:hover, textarea:hover { border-color: var(--line-strong) }
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-ring);
}
textarea { resize: vertical; min-height: 95px; line-height: 1.6 }
input[type=checkbox] { width: 15px; height: 15px; accent-color: var(--accent); transition: transform var(--d-fast) var(--e-spring) }
input[type=checkbox]:active { transform: scale(.85) }
input[type=color] { height: 40px; padding: 4px }
small { color: var(--muted); line-height: 1.6 }
.muted { color: var(--muted) }
.soft { color: var(--soft) }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace }
.boot { display: grid; place-items: center; min-height: 100vh; color: var(--muted); animation: fade-in var(--d-med) var(--e-out) }

/* ============================================
   Primitives
   ============================================ */
.button {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  gap: 7px;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  box-shadow: var(--shadow-xs);
  transition: background var(--d-fast) var(--e-out), border-color var(--d-fast) var(--e-out),
              box-shadow var(--d-fast) var(--e-out), transform var(--d-fast) var(--e-out),
              color var(--d-fast) var(--e-out), filter var(--d-fast) var(--e-out);
}
.button:hover { background: var(--subtle); border-color: var(--line-strong) }
.button:active { transform: scale(.96); transition-duration: .06s }
.button.primary {
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 96%, #fff) 0%, var(--accent) 100%);
  color: #fff;
  border-color: var(--accent-strong);
  box-shadow: 0 1px 2px rgba(52, 40, 160, .35), 0 4px 14px rgba(93, 80, 214, .28);
}
.button.primary:hover { filter: brightness(1.07); box-shadow: 0 2px 4px rgba(52, 40, 160, .35), 0 8px 22px rgba(93, 80, 214, .36); transform: translateY(-1px) }
.button.primary:active { transform: scale(.96); filter: brightness(.98) }
.button.ghost { border-color: transparent; background: transparent; color: var(--soft); box-shadow: none }
.button.ghost:hover { background: var(--subtle); color: var(--text) }
.button.danger { color: var(--red) }
.button.danger:hover { background: color-mix(in srgb, var(--red) 8%, var(--surface)); border-color: color-mix(in srgb, var(--red) 30%, var(--line)) }

.icon-button {
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: 0; border-radius: 7px;
  color: var(--soft); flex-shrink: 0;
  transition: background var(--d-fast) var(--e-out), color var(--d-fast) var(--e-out), transform var(--d-fast) var(--e-spring);
}
.icon-button:hover { background: var(--line); color: var(--text) }
.icon-button:active { transform: scale(.88) }

.button-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap }
.spacer { flex: 1 }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--dot, var(--accent)); display: inline-block; flex-shrink: 0 }
.badge { padding: 3px 7px; border-radius: 6px; background: var(--subtle); color: var(--soft); font-size: 11px }
.chip {
  display: inline-flex; align-items: center; gap: 5px;
  max-width: 150px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  padding: 3px 8px; border-radius: 6px; font-size: 11px;
  background: color-mix(in srgb, var(--chip, var(--accent)) 9%, var(--surface));
  color: var(--chip, var(--accent));
  border: 1px solid color-mix(in srgb, var(--chip, var(--accent)) 14%, var(--surface));
}
.error-inline { color: var(--red); font-size: 12px; line-height: 1.7; min-height: 18px }
.error-inline:not(:empty) { animation: shake .35s var(--e-in-out) }
.field { display: flex; flex-direction: column; gap: 7px; min-width: 0 }
.field-label { font-size: 12px; font-weight: 550; color: var(--soft) }
.form-stack { display: flex; flex-direction: column; gap: 18px }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--soft); cursor: pointer }
.check-tags { display: flex; flex-wrap: wrap; gap: 8px }
.check-tags label {
  display: flex; align-items: center; gap: 6px;
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 9px; font-size: 12px;
  cursor: pointer;
  transition: border-color var(--d-fast) var(--e-out), background var(--d-fast) var(--e-out), transform var(--d-fast) var(--e-out);
}
.check-tags label:hover { border-color: var(--accent); background: var(--accent-soft) }
.check-tags label:has(:checked) { border-color: var(--accent); background: var(--accent-soft); color: var(--accent) }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 5px }
.divider { height: 1px; background: var(--line); margin: 5px 0 }

/* ============================================
   Motion
   ============================================ */
@keyframes fade-in { from { opacity: 0 } to { opacity: 1 } }
@keyframes rise-in { from { opacity: 0; transform: translateY(14px) } to { opacity: 1; transform: none } }
@keyframes pop-in { 0% { transform: scale(.4); opacity: 0 } 70% { transform: scale(1.15) } 100% { transform: scale(1); opacity: 1 } }
@keyframes shake { 0%, 100% { transform: translateX(0) } 25% { transform: translateX(-5px) } 50% { transform: translateX(4px) } 75% { transform: translateX(-2px) } }
@keyframes modal-in { from { opacity: 0; transform: translateY(14px) scale(.965) } to { opacity: 1; transform: none } }
@keyframes modal-out { from { opacity: 1; transform: none } to { opacity: 0; transform: translateY(8px) scale(.975) } }
@keyframes backdrop-in { from { opacity: 0 } to { opacity: 1 } }
@keyframes toast-in { from { opacity: 0; transform: translateY(16px) scale(.94) } to { opacity: 1; transform: none } }
@keyframes toast-out { from { opacity: 1; transform: none } to { opacity: 0; transform: translateY(10px) scale(.96) } }
@keyframes check-draw { from { stroke-dashoffset: 14 } to { stroke-dashoffset: 0 } }
@keyframes pulse-soft { 0%, 100% { opacity: 1 } 50% { opacity: .45 } }
@keyframes flash-soft { from { background: var(--accent-soft) } to { background: var(--surface) } }

/* staggered entrance — .animate-in on the content container, --i set per element */
.animate-in > .task-row,
.animate-in .task-group,
.animate-in .board-column,
.animate-in .day,
.animate-in .empty,
.animate-in .notice {
  animation: rise-in .45s var(--e-out) backwards;
  animation-delay: calc(var(--i, 0) * 28ms);
}
.task-row.just-added, .task-card.just-added { animation: rise-in .5s var(--e-out) backwards, flash-soft 1.5s var(--e-out) .35s }

/* ============================================
   Authentication
   ============================================ */
.auth-page { min-height: 100vh; display: grid; grid-template-columns: 1.08fr 1fr; background: var(--surface) }
.auth-story {
  padding: 58px 64px;
  background:
    radial-gradient(120% 90% at 15% 0%, color-mix(in srgb, var(--accent) 14%, transparent) 0%, transparent 55%),
    radial-gradient(90% 80% at 90% 95%, color-mix(in srgb, var(--accent) 10%, transparent) 0%, transparent 50%),
    #f4f1fb;
  display: flex; flex-direction: column; justify-content: space-between;
  position: relative; overflow: hidden; color: #3b3452;
}
.auth-story::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 40% at 70% 30%, rgba(255,255,255,.5), transparent 70%);
  animation: auth-glow 9s var(--e-in-out) infinite alternate;
}
@keyframes auth-glow { from { transform: translate(-6%, -4%) scale(1) } to { transform: translate(4%, 5%) scale(1.12) } }
.brand { font-weight: 690; font-size: 20px; letter-spacing: -.5px; display: flex; align-items: center; gap: 10px }
.brand img { width: 33px; height: 33px }
.auth-copy h1 { font-size: 44px; line-height: 1.38; letter-spacing: -1.4px; font-weight: 620 }
.auth-copy p { font-size: 15px; line-height: 1.9; color: #8a809e; margin-top: 20px; max-width: 340px }
.auth-copy { position: relative; z-index: 1; animation: rise-in .7s var(--e-out) backwards .1s }
.auth-graphic {
  margin: 40px 0 20px; background: rgba(255,255,255,.72); border: 1px solid rgba(255,255,255,.9);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md); backdrop-filter: blur(8px);
  max-width: 365px; padding: 22px; transform: rotate(-3deg);
  transition: transform .6s var(--e-out), box-shadow .6s var(--e-out);
}
.auth-graphic:hover { transform: rotate(-1deg) translateY(-4px); box-shadow: var(--shadow-lg) }
.auth-graphic .mock-row { display: flex; align-items: center; gap: 10px; padding: 13px 0; border-bottom: 1px solid #eae5f2; font-size: 13px }
.auth-graphic .mock-row:last-child { border: 0 }
.mock-check { width: 15px; height: 15px; border: 1.5px solid #aa9acb; border-radius: 5px }
.auth-foot { font-size: 11px; color: #9b90ac; letter-spacing: .6px; position: relative; z-index: 1 }
.auth-form-wrap { display: flex; align-items: center; justify-content: center; padding: 56px; animation: fade-in .6s var(--e-out) }
.auth-form { width: 100%; max-width: 350px }
.auth-form h2 { font-size: 25px; font-weight: 600; margin-bottom: 10px; letter-spacing: -.4px }
.auth-form > .soft { font-size: 13px; margin-bottom: 32px }
.auth-switch { margin-top: 24px; text-align: center; color: var(--muted); font-size: 12px }
.auth-form .primary { width: 100%; padding: 11px }
.kbd-note { font-size: 11px; color: var(--muted); margin-top: 24px }

/* ============================================
   App shell
   ============================================ */
.shell { display: flex; min-height: 100vh }
.sidebar {
  width: 232px; flex-shrink: 0;
  background: var(--sidebar);
  border-right: 1px solid var(--line);
  padding: 24px 13px 15px;
  display: flex; flex-direction: column;
  position: fixed; inset: 0 auto 0 0; z-index: 20; overflow-y: auto;
}
.sidebar .brand { font-size: 18px; padding: 0 12px 26px }
.sidebar .brand img { width: 29px; height: 29px; transition: transform var(--d-med) var(--e-spring) }
.sidebar .brand:hover img { transform: rotate(-8deg) scale(1.06) }
.workspace-label { font-size: 10px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); padding: 0 12px 13px }
.nav-item {
  width: 100%; border: 0; background: transparent;
  display: flex; align-items: center; gap: 11px; text-align: left;
  padding: 10px 12px; border-radius: 8px; color: var(--soft); font-size: 12px;
  margin-bottom: 3px; min-height: 36px; position: relative;
  transition: background var(--d-fast) var(--e-out), color var(--d-fast) var(--e-out), transform var(--d-fast) var(--e-out);
}
.nav-item:hover { background: var(--line); color: var(--text) }
.nav-item:active { transform: scale(.985) }
.nav-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600 }
.nav-item.active::before {
  content: ""; position: absolute; left: -13px; top: 8px; bottom: 8px; width: 3px;
  border-radius: 0 3px 3px 0; background: var(--accent);
}
.nav-item .count { margin-left: auto; color: var(--muted); font-size: 11px; min-width: 16px; text-align: right; font-weight: 400; font-variant-numeric: tabular-nums }
.nav-item.active .count { color: var(--accent) }
.nav-section-head {
  display: flex; justify-content: space-between; align-items: center;
  margin: 27px 6px 8px 12px;
  color: var(--muted); font-size: 10px; letter-spacing: 1.2px; text-transform: uppercase;
}
.nav-section-head .icon-button { width: 22px; height: 22px }
.sidebar-bottom { margin-top: auto; padding-top: 30px }
.storage-indicator {
  border: 1px solid var(--line); border-radius: 10px; padding: 11px; margin: 0 2px 15px;
  font-size: 11px; color: var(--soft); display: flex; gap: 10px; align-items: center;
  background: var(--surface); box-shadow: var(--shadow-xs);
}
.storage-indicator strong { font-size: 11px; display: block; font-weight: 500 }
.storage-indicator small { font-size: 10px }
.profile { display: flex; gap: 10px; align-items: center; padding: 6px 7px; border-radius: 10px; transition: background var(--d-fast) var(--e-out) }
.profile:hover { background: var(--subtle) }
.avatar {
  width: 31px; height: 31px; border-radius: 9px;
  background: linear-gradient(135deg, #ece7fa, #ddd3f3);
  color: #6a56b5; display: grid; place-items: center;
  font-size: 13px; font-weight: 600; flex-shrink: 0;
}
.profile-name { font-size: 12px; font-weight: 550; max-width: 116px; overflow: hidden; text-overflow: ellipsis }
.profile small { font-size: 10px; display: block; max-width: 128px; overflow: hidden; text-overflow: ellipsis }
.workspace { margin-left: 232px; flex: 1; min-width: 0; min-height: 100vh }
.topbar {
  height: 64px; display: flex; align-items: center; padding: 0 36px; gap: 12px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 10;
}
.breadcrumb { font-size: 12px; color: var(--muted); display: flex; gap: 11px; align-items: center }
.breadcrumb strong { color: var(--soft); font-weight: 500 }
.top-search {
  display: flex; align-items: center; gap: 7px; color: var(--muted); width: 220px;
  border: 1px solid transparent; border-radius: 9px; padding: 3px 10px;
  transition: width var(--d-med) var(--e-out), background var(--d-fast) var(--e-out), border-color var(--d-fast) var(--e-out), box-shadow var(--d-fast) var(--e-out);
}
.top-search:hover { background: var(--subtle) }
.top-search:focus-within {
  width: 300px; background: var(--surface);
  border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-ring);
  color: var(--accent);
}
.top-search input { background: transparent; border: 0; padding: 6px 0; width: 100%; font-size: 12px; box-shadow: none }
.top-search input:focus { box-shadow: none }
.keycap {
  border: 1px solid var(--line); padding: 1px 5px; border-radius: 5px;
  font-size: 10px; color: var(--muted); white-space: nowrap;
  background: var(--surface); box-shadow: 0 1px 0 var(--line);
  transition: opacity var(--d-fast) var(--e-out);
}
.top-search:focus-within .keycap { opacity: 0 }
.mobile-menu { display: none }
.page-intro { padding: 38px 38px 26px; display: flex; align-items: center; gap: 14px }
.page-intro h1 { font-size: 27px; letter-spacing: -.7px; font-weight: 640 }
.page-intro p { font-size: 12px; color: var(--muted); margin-top: 9px; line-height: 1.7 }
.page-intro .button-row { margin-left: auto }
.toolbar { padding: 0 38px 18px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--line) }
.segmented { display: flex; gap: 2px; background: var(--sidebar); padding: 3px; border: 1px solid var(--line); border-radius: 9px }
.segment {
  background: transparent; border: 0; display: flex; align-items: center; gap: 6px;
  color: var(--soft); padding: 6px 11px; border-radius: 6px; font-size: 11px; white-space: nowrap;
  transition: background var(--d-fast) var(--e-out), color var(--d-fast) var(--e-out), box-shadow var(--d-fast) var(--e-out), transform var(--d-fast) var(--e-out);
}
.segment:hover { color: var(--text) }
.segment:active { transform: scale(.95) }
.segment.active { background: var(--surface); color: var(--accent); box-shadow: var(--shadow-xs), 0 1px 4px rgba(39, 35, 49, .07) }
.toolbar .select-filter { width: 118px; font-size: 11px; padding: 7px 9px; background: var(--surface) }
.toolbar .checkbox-row { font-size: 11px }
.content { padding: 24px 38px 48px }
.section-heading { display: flex; align-items: center; gap: 8px; margin: 11px 0 12px; font-size: 12px; font-weight: 600 }
.section-heading .counter { color: var(--muted); font-size: 11px; font-weight: 400; font-variant-numeric: tabular-nums }
.empty { padding: 80px 24px; text-align: center; color: var(--muted); animation: rise-in .5s var(--e-out) backwards }
.empty-icon {
  display: flex; justify-content: center; color: #b4a5d5; margin-bottom: 18px;
  animation: float-soft 3.5s var(--e-in-out) infinite;
}
@keyframes float-soft { 0%, 100% { transform: translateY(0) } 50% { transform: translateY(-5px) } }
.empty h2 { color: var(--soft); font-size: 17px; font-weight: 550; margin-bottom: 10px }
.empty p { font-size: 12px; line-height: 1.8; margin-bottom: 22px }
.notice {
  border: 1px solid #e7dfbb; background: #fbf8ed; border-radius: 10px;
  padding: 11px 14px; color: #8c7845; font-size: 12px; line-height: 1.6; margin-bottom: 18px;
}
.loading { opacity: .55; pointer-events: none; transition: opacity var(--d-fast) var(--e-out) }

/* ============================================
   Tasks
   ============================================ */
.task-group { margin-bottom: 26px }
.task-row {
  display: flex; align-items: center; gap: 13px;
  min-height: 56px; border-bottom: 1px solid var(--line);
  padding: 11px 10px; background: var(--surface);
  border-radius: 8px;
  transition: background var(--d-fast) var(--e-out), opacity var(--d-med) var(--e-out),
              transform var(--d-med) var(--e-out), box-shadow var(--d-fast) var(--e-out);
}
.task-row:hover { background: var(--subtle); box-shadow: var(--shadow-xs) }
.task-row.drag-over { box-shadow: inset 0 2px 0 var(--accent) }
.task-row.leaving { opacity: 0; transform: translateX(18px); pointer-events: none }
.task-row.dragging { opacity: .5; transform: rotate(.6deg) scale(.985); box-shadow: var(--shadow-md) }

.complete-button {
  width: 18px; height: 18px;
  border: 1.5px solid var(--status, #a8a4b4); border-radius: 50%;
  background: transparent; flex-shrink: 0; padding: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--status, var(--accent));
  transition: box-shadow var(--d-fast) var(--e-out), border-color var(--d-fast) var(--e-out),
              background var(--d-fast) var(--e-out), transform var(--d-fast) var(--e-spring);
}
.complete-button:hover { box-shadow: 0 0 0 4px var(--accent-ring); transform: scale(1.08) }
.complete-button:active { transform: scale(.9) }
.complete-button.done { background: var(--status, var(--green)); border-color: var(--status, var(--green)); color: #fff }
.complete-button.done svg { animation: pop-in .4s var(--e-spring) }
.complete-button svg { transition: transform var(--d-fast) var(--e-spring) }
.completing .complete-button { animation: pop-in .4s var(--e-spring); background: var(--status, var(--green)); border-color: var(--status, var(--green)); color: #fff }

.task-title-button {
  border: 0; background: none; padding: 0; text-align: left;
  color: var(--text); line-height: 1.55; font-size: 13px;
  max-width: 100%; overflow: hidden; text-overflow: ellipsis;
  transition: color var(--d-fast) var(--e-out), opacity var(--d-med) var(--e-out);
}
.task-title-button:hover { color: var(--accent) }
.task-title-button.done { text-decoration: line-through; text-decoration-color: var(--muted); color: var(--muted) }
.task-title-wrap { flex: 1; min-width: 110px; display: flex; align-items: center; gap: 9px }
.task-meta { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 10px; flex-shrink: 0 }
.priority { display: flex; align-items: flex-end; gap: 2px; width: 15px; height: 12px; flex-shrink: 0; color: var(--muted) }
.priority i { width: 3px; border-radius: 1px; background: currentColor; opacity: .18; transition: opacity var(--d-fast) var(--e-out) }
.priority i.lit { opacity: 1 }
.priority.level-4 { color: #d56e61 }
.priority.level-3 { color: #be954b }
.priority.level-2 { color: #8791a2 }
.due { font-size: 10px; color: var(--muted); white-space: nowrap; display: flex; gap: 5px; align-items: center }
.due.overdue { color: var(--red) }
.quick-add {
  display: flex; align-items: center; gap: 11px; margin-top: 15px;
  color: var(--muted); padding: 10px; border-radius: 8px;
  transition: background var(--d-fast) var(--e-out), color var(--d-fast) var(--e-out);
}
.quick-add:hover, .quick-add:focus-within { background: var(--subtle); color: var(--soft) }
.quick-add input { border: 0; padding: 5px; background: transparent; font-size: 12px; flex: 1; box-shadow: none }
.quick-add input:focus-visible { outline: 0 }
.quick-add .keycap { margin-left: auto }

/* Board */
.board { display: flex; gap: 16px; overflow-x: auto; padding: 4px 2px 20px; min-height: 460px }
.board-column {
  min-width: 256px; flex: 1; border-radius: var(--radius);
  background: var(--subtle); padding: 12px;
  align-self: flex-start; min-height: 380px;
  border: 1px solid transparent;
  transition: background var(--d-med) var(--e-out), border-color var(--d-med) var(--e-out), box-shadow var(--d-med) var(--e-out);
}
.board-column.drag-over {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent), var(--shadow-sm);
}
.column-heading { display: flex; gap: 8px; align-items: center; margin: 3px 2px 15px; font-size: 11px; font-weight: 550 }
.column-heading .counter { font-size: 10px; font-weight: 400; color: var(--muted); background: var(--line); border-radius: 5px; padding: 2px 6px; font-variant-numeric: tabular-nums }
.column-heading .icon-button { width: 22px; height: 22px }
.task-card {
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--surface); padding: 15px; margin-bottom: 10px;
  box-shadow: var(--shadow-xs); cursor: pointer;
  transition: transform var(--d-fast) var(--e-out), box-shadow var(--d-fast) var(--e-out),
              border-color var(--d-fast) var(--e-out), opacity var(--d-med) var(--e-out);
}
.task-card:hover { border-color: #cfc5e8; transform: translateY(-2px); box-shadow: var(--shadow-sm) }
.task-card:active { transform: translateY(0) scale(.99) }
.task-card.drag-over { border-top: 2px solid var(--accent) }
.task-card.dragging { opacity: .5; transform: rotate(1.2deg) scale(.98); box-shadow: var(--shadow-md) }
.task-card.leaving { opacity: 0; transform: scale(.94); pointer-events: none }
.card-id { color: var(--muted); font-size: 9px; letter-spacing: .8px; margin-bottom: 10px; display: flex; gap: 5px; align-items: center }
.task-card h3 { font-size: 12.5px; font-weight: 540; line-height: 1.65; margin-bottom: 12px; overflow-wrap: anywhere }
.card-tags { display: flex; flex-wrap: wrap; gap: 5px; margin: 9px 0 14px }
.card-footer { display: flex; align-items: center; gap: 7px; font-size: 10px; color: var(--muted) }
.card-footer .avatar { height: 19px; width: 19px; font-size: 8px; border-radius: 50%; margin-left: auto }
.column-add {
  border: 0; background: transparent; display: flex; align-items: center; gap: 6px;
  color: var(--muted); font-size: 11px; padding: 8px 4px; width: 100%;
  border-radius: 7px;
  transition: color var(--d-fast) var(--e-out), background var(--d-fast) var(--e-out);
}
.column-add:hover { color: var(--accent); background: color-mix(in srgb, var(--accent) 6%, transparent) }
.board-empty {
  font-size: 11px; text-align: center; color: var(--muted); padding: 25px 0;
  border: 1px dashed var(--line-strong); border-radius: 9px; margin-bottom: 8px;
  transition: border-color var(--d-fast) var(--e-out), color var(--d-fast) var(--e-out);
}

/* ============================================
   Schedule
   ============================================ */
.calendar-controls { display: flex; gap: 9px; align-items: center; margin-bottom: 22px }
.calendar-controls h3 { font-size: 13px; font-weight: 550 }
.week {
  display: grid; grid-template-columns: repeat(7, minmax(120px, 1fr));
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: auto; min-height: 395px; background: var(--surface);
  box-shadow: var(--shadow-xs);
}
.day { border-right: 1px solid var(--line); min-width: 120px; background: var(--surface); transition: background var(--d-med) var(--e-out) }
.day:last-child { border: 0 }
.day.today { background: color-mix(in srgb, var(--accent-soft) 38%, var(--surface)) }
.day-heading { text-align: center; padding: 17px 0; border-bottom: 1px solid var(--line); font-size: 10px; color: var(--muted) }
.day-number {
  font-size: 19px; font-weight: 550; color: var(--soft);
  margin: 8px auto 0; border-radius: 50%; width: 32px; height: 32px;
  display: grid; place-items: center;
  transition: transform var(--d-med) var(--e-spring), background var(--d-med) var(--e-out);
}
.today .day-number { background: var(--accent); color: #fff; box-shadow: 0 3px 10px var(--accent-ring) }
.day-blocks { padding: 10px 6px }
.time-block {
  width: 100%; text-align: left;
  border: 1px solid #ddd2f1; border-left: 3px solid #9b86c8;
  border-radius: 7px; background: #f5f1fb; padding: 9px; margin-bottom: 9px; color: #675879;
  transition: transform var(--d-fast) var(--e-out), box-shadow var(--d-fast) var(--e-out), border-color var(--d-fast) var(--e-out);
}
.time-block:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); border-color: #c9b8e8 }
.time-block small { color: #9b8dac; font-size: 9px }
.time-block strong { display: block; font-size: 11px; font-weight: 500; line-height: 1.6; margin: 6px 0 }
.day-add {
  width: 100%; color: var(--muted); font-size: 10px; border: 0; background: transparent;
  padding: 8px; border-radius: 7px; opacity: .55;
  transition: opacity var(--d-fast) var(--e-out), color var(--d-fast) var(--e-out), background var(--d-fast) var(--e-out);
}
.day:hover .day-add, .day-add:focus-visible { opacity: 1 }
.day-add:hover { color: var(--accent); background: color-mix(in srgb, var(--accent) 7%, transparent) }
.calendar-note { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; margin-top: 17px }

/* ============================================
   Detail drawer & dialogs
   ============================================ */
.drawer-backdrop {
  position: fixed; inset: 0; z-index: 30;
  background: rgba(27, 23, 57, .16);
  backdrop-filter: blur(2px); -webkit-backdrop-filter: blur(2px);
  opacity: 0; transition: opacity .28s var(--e-out);
}
.drawer-backdrop.open { opacity: 1 }
.drawer-backdrop.closing { opacity: 0 }
.drawer {
  position: fixed; inset: 0 0 0 auto; width: 420px; max-width: 100vw;
  background: var(--surface); z-index: 31;
  box-shadow: var(--shadow-lg); border-left: 1px solid var(--line);
  display: flex; flex-direction: column;
  transform: translateX(48px); opacity: 0;
  transition: transform .38s var(--e-out), opacity .28s var(--e-out);
}
.drawer.open { transform: none; opacity: 1 }
.drawer.closing { transform: translateX(48px); opacity: 0; transition-duration: .22s }
.drawer-header {
  height: 62px; padding: 0 22px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 8px;
  font-size: 10px; color: var(--muted); flex-shrink: 0;
}
.drawer-body { padding: 24px; overflow-y: auto }
.drawer-title {
  font-size: 21px; font-weight: 560; letter-spacing: -.3px;
  border: 0; padding: 0; border-radius: 0; line-height: 1.55;
  min-height: 60px; resize: none; background: transparent; box-shadow: none;
}
.drawer-title:focus { box-shadow: none }
.drawer .form-stack { gap: 19px }
.drawer-section { padding-top: 25px }
.drawer-section h3 {
  font-size: 11px; text-transform: uppercase; color: var(--soft); font-weight: 600;
  display: flex; align-items: center; gap: 7px; margin-bottom: 12px; letter-spacing: .4px;
}
.drawer .field-label { font-size: 11px }
.drawer input, .drawer select { font-size: 12px; padding: 8px 10px }
.drawer textarea { font-size: 12px }
.subtask-row { display: flex; gap: 8px; align-items: center; margin: 12px 0; font-size: 12px }
.activity { display: flex; gap: 9px; margin: 15px 0; font-size: 11px; color: var(--soft); line-height: 1.65 }
.activity-mark { width: 6px; height: 6px; border-radius: 50%; background: #c1b7d6; margin-top: 6px; flex-shrink: 0 }
.activity small { display: block; font-size: 10px }

.modal {
  border: 1px solid var(--line); padding: 0; border-radius: var(--radius-lg);
  background: var(--surface); color: var(--text);
  width: min(510px, calc(100vw - 32px)); max-height: 90vh;
  box-shadow: var(--shadow-lg);
}
.modal.wide { width: min(690px, calc(100vw - 32px)) }
.modal[open] { animation: modal-in .34s var(--e-out) }
.modal.closing { animation: modal-out .16s ease-in forwards }
.modal::backdrop {
  background: rgba(24, 18, 39, .3);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  transition: opacity .16s ease;
}
.modal[open]::backdrop { animation: backdrop-in .3s var(--e-out) }
.modal.closing::backdrop { opacity: 0 }
.modal-header { display: flex; align-items: center; padding: 20px 24px 16px; border-bottom: 1px solid var(--line) }
.modal-header h2 { font-size: 15px; font-weight: 600; flex: 1; letter-spacing: -.2px }
.modal-body { padding: 24px; overflow-y: auto; max-height: calc(90vh - 72px) }
.settings-section { margin-bottom: 28px }
.settings-section h3 { font-size: 13px; margin-bottom: 12px; font-weight: 550; display: flex; gap: 8px; align-items: center }
.settings-section p { font-size: 12px; line-height: 1.8; color: var(--soft); margin: 9px 0 14px }
.token-row {
  border: 1px solid var(--line); border-radius: 10px; padding: 12px;
  display: flex; gap: 9px; align-items: center; margin: 10px 0;
  transition: border-color var(--d-fast) var(--e-out), box-shadow var(--d-fast) var(--e-out);
}
.token-row:hover { border-color: var(--line-strong); box-shadow: var(--shadow-xs) }
.token-row strong { font-size: 12px; font-weight: 500 }
.token-row small { font-size: 10px; display: block }
.token-reveal {
  background: var(--accent-soft); padding: 13px; border-radius: 9px;
  overflow-wrap: anywhere; font-family: ui-monospace, monospace; font-size: 11px; margin: 10px 0;
}
.settings-tabs { margin-bottom: 22px }
.caldav-copy-field { display: flex; align-items: flex-end; gap: 9px; margin: 12px 0 }
.caldav-copy-field .field { flex: 1; min-width: 0; margin: 0 }
.caldav-copy-field input { width: 100%; font-family: ui-monospace, monospace; font-size: 12px }
.caldav-copy-field .button { flex-shrink: 0 }
.caldav-details { margin: 18px 0; font-size: 12px; line-height: 1.8 }
.caldav-details summary { cursor: pointer; font-weight: 500 }
.caldav-details ol { margin: 12px 0; padding-left: 20px; color: var(--soft) }
.caldav-details li { margin: 8px 0 }
.caldav-parameters { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px 20px; margin: 12px 0 }
.caldav-parameters dt { color: var(--soft) }
.caldav-parameters dd { margin: 0; overflow-wrap: anywhere; font-family: ui-monospace, monospace }
.caldav-reveal { background: var(--accent-soft); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin-top: 18px }
.caldav-reveal .button-row { flex-wrap: wrap }
.caldav-feedback:not(:empty) { margin: 12px 0 20px; color: var(--soft); font-size: 12px; line-height: 1.8 }
.caldav-credential { justify-content: space-between }
.caldav-credential-info { min-width: 0; overflow-wrap: anywhere }
.caldav-credential .button { flex-shrink: 0 }
@media (max-width: 420px) {
  .settings-tabs { display: flex; width: 100%; flex-wrap: wrap }
  .settings-tabs .segment { flex: 1; padding-left: 8px; padding-right: 8px }
  .caldav-reveal { padding: 12px }
}
.db-note { background: var(--subtle); padding: 12px; border: 1px solid var(--line); border-radius: 9px; font-size: 11px; color: var(--soft); line-height: 1.8 }

/* ============================================
   Toasts
   ============================================ */
#toasts {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  z-index: 100; display: flex; flex-direction: column; gap: 8px;
  max-width: 90vw; align-items: center;
}
.toast {
  display: flex; align-items: center; gap: 9px;
  background: color-mix(in srgb, var(--text) 94%, #000); color: var(--bg);
  padding: 12px 18px; border-radius: 11px; font-size: 12px;
  box-shadow: var(--shadow-md);
  animation: toast-in .4s var(--e-spring);
  cursor: default;
}
.toast.leaving { animation: toast-out .24s ease-in forwards }
.toast.error { background: #8f4257; color: #fff }

/* ============================================
   Dark theme
   ============================================ */
:root[data-theme=dark] {
  color-scheme: dark;
  --bg: #15151b;
  --surface: #1d1d25;
  --sidebar: #17171f;
  --subtle: #23232e;
  --text: #e6e4f0;
  --muted: #83829a;
  --soft: #adaabf;
  --line: #2c2a3a;
  --line-strong: #3c3a4e;
  --accent: #a494ed;
  --accent-strong: #8f7ee8;
  --accent-soft: #2b2443;
  --accent-ring: rgba(164, 148, 237, .18);
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, .25);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .2), 0 2px 8px rgba(0, 0, 0, .25);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .35);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, .4), 0 32px 80px rgba(0, 0, 0, .5);
}
:root[data-theme=dark] .time-block { background: #2c2440; color: #c9b6e0; border-color: #4c3b63 }
:root[data-theme=dark] .notice { background: #322d20; border-color: #514a2d; color: #cebb82 }
:root[data-theme=dark] .button.primary { color: #221b3c }
:root[data-theme=dark] .auth-page { background: var(--surface) }
:root[data-theme=dark] .auth-story {
  background:
    radial-gradient(120% 90% at 15% 0%, color-mix(in srgb, var(--accent) 16%, transparent) 0%, transparent 55%),
    radial-gradient(90% 80% at 90% 95%, color-mix(in srgb, var(--accent) 10%, transparent) 0%, transparent 50%),
    #1c1830;
  color: #d9d4ec;
}
:root[data-theme=dark] .auth-copy p { color: #9a93b5 }
:root[data-theme=dark] .auth-graphic { background: rgba(35, 30, 56, .72); border-color: rgba(255,255,255,.08) }
:root[data-theme=dark] .auth-graphic .mock-row { border-color: #352d50; color: #cfc8e6 }
:root[data-theme=dark] .auth-foot { color: #6f668c }
:root[data-theme=dark] .avatar { background: linear-gradient(135deg, #3a3158, #2d2547); color: #c3b6ee }
:root[data-theme=dark] .mock-check { border-color: #6d5fa0 }
:root[data-theme=dark] .keycap { background: var(--subtle); box-shadow: 0 1px 0 rgba(0,0,0,.3) }
:root[data-theme=dark] .toast { background: #e8e6f2; color: #221d35 }
:root[data-theme=dark] .toast.error { background: #8f4257; color: #fff }
:root[data-theme=dark] .empty-icon { color: #6d5fa0 }
:root[data-theme=dark] .task-card:hover { border-color: #4c3b63 }
:root[data-theme=dark] .drawer-backdrop { background: rgba(8, 6, 18, .4) }

/* ============================================
   Responsive
   ============================================ */
@media (min-width: 1450px) {
  .content, .page-intro { padding-left: 48px; padding-right: 48px }
  .toolbar { padding-left: 48px; padding-right: 48px }
  .board-column { min-width: 265px }
  .task-row { min-height: 60px }
}
@media (max-width: 1100px) {
  .sidebar { width: 200px }
  .workspace { margin-left: 200px }
  .content { padding: 20px 24px }
  .page-intro { padding: 30px 24px 22px }
  .toolbar { padding-left: 24px; padding-right: 24px }
  .topbar { padding: 0 24px }
  .task-meta .row-tag { display: none }
  .top-search { width: 170px }
  .top-search:focus-within { width: 220px }
  .board-column { min-width: 230px }
}
@media (max-width: 760px) {
  .sidebar { transform: translateX(-100%); transition: transform .3s var(--e-out); width: 232px }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg) }
  .workspace { margin-left: 0 }
  .mobile-menu { display: inline-flex }
  .topbar { padding: 0 15px; height: 57px }
  .top-search { width: 140px }
  .top-search:focus-within { width: 180px }
  .breadcrumb > span:first-child, .breadcrumb > svg { display: none }
  .page-intro { padding: 26px 18px 20px; align-items: flex-start }
  .page-intro h1 { font-size: 23px }
  .page-intro .button-row .secondary { display: none }
  .toolbar { padding: 0 18px 15px; gap: 8px; flex-wrap: wrap }
  .toolbar .spacer { display: none }
  .toolbar .checkbox-row { margin-left: auto }
  .toolbar .save-view { display: none }
  .content { padding: 17px }
  .task-row { gap: 10px; padding-left: 4px; padding-right: 4px }
  .task-meta .project-label, .task-meta .estimate { display: none }
  .task-title-wrap { min-width: 60px }
  .task-title-button { font-size: 12px }
  .task-meta { gap: 6px }
  .task-group { margin-bottom: 17px }
  .auth-page { grid-template-columns: 1fr }
  .auth-story { display: none }
  .auth-form-wrap { padding: 45px 26px }
  .auth-form { max-width: 350px }
  .week { grid-template-columns: repeat(7, 140px) }
  .calendar-controls { flex-wrap: wrap }
  .calendar-controls .spacer { display: none }
  .calendar-controls h3 { width: calc(100% - 110px) }
  .drawer { width: 100vw }
  .page-intro .button.primary { font-size: 12px; padding: 8px 10px }
  .topbar .keycap { display: none }
  .form-grid { gap: 11px }
  .modal-body { padding: 19px }
  .page-intro .button-row { gap: 5px }
  .task-meta .due svg { display: none }
}

/* ============================================
   Reduced motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .auth-story::after { animation: none }
  .empty-icon { animation: none }
}