/* =========================================================
   STUDY FLOW — STYLE.CSS
   Aesthetic: Editorial Notebook × Utilitarian Precision
   Fonts: Instrument Serif (display) · Plus Jakarta Sans (UI)
           Geist Mono (timer)
   ========================================================= */

/* ── DESIGN TOKENS ──────────────────────────────────────── */
:root {
  /* Palette — warm off-white canvas */
  --canvas:       #f5f3ee;
  --surface:      #ffffff;
  --surface-alt:  #faf9f6;
  --surface-raised: #ffffff;
  --border:       #e8e4db;
  --border-strong:#d0cbc0;

  /* Ink scale */
  --ink-900: #1a1814;
  --ink-600: #5a5650;
  --ink-400: #918d87;
  --ink-200: #cbc6be;
  --ink-100: #e8e4db;

  /* Accent — warm amber */
  --accent:       #c9622f;
  --accent-dim:   #f0e0d6;
  --accent-hover: #b3571e;

  /* Status */
  --danger:       #c93030;
  --danger-dim:   #faeaea;
  --success:      #2a8a52;
  --success-dim:  #e2f5ec;
  --warning:      #c97c10;

  /* Priority dots */
  --p-high:   #c93030;
  --p-medium: #c97c10;
  --p-low:    #2a8a52;

  /* Layout */
  --sidebar-w:  230px;
  --radius:     10px;
  --radius-sm:  6px;
  --radius-lg:  14px;

  /* Shadow */
  --shadow-sm: 0 1px 3px rgba(26,24,20,0.07), 0 1px 2px rgba(26,24,20,0.04);
  --shadow-md: 0 4px 16px rgba(26,24,20,0.08), 0 1px 4px rgba(26,24,20,0.05);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur:  200ms;
}

/* Dark mode tokens */
body.dark {
  --canvas:       #131210;
  --surface:      #1e1c19;
  --surface-alt:  #252320;
  --surface-raised: #252320;
  --border:       #2e2b27;
  --border-strong:#3a3733;

  --ink-900: #f0ede8;
  --ink-600: #a09c96;
  --ink-400: #6b6760;
  --ink-200: #3a3733;
  --ink-100: #2e2b27;

  --accent:       #e07848;
  --accent-dim:   #2e1a10;
  --accent-hover: #f08858;

  --danger:       #e05050;
  --danger-dim:   #2a1212;
  --success:      #40b070;
  --success-dim:  #122214;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
}

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

html { font-size: 16px; height: 100%; scroll-behavior: smooth; }

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--canvas);
  color: var(--ink-900);
  height: 100%;
  line-height: 1.55;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
  -webkit-font-smoothing: antialiased;
}

button { cursor: pointer; font-family: inherit; }
input, select { font-family: inherit; }
ul { list-style: none; }
svg { display: block; }

/* ── APP SHELL ───────────────────────────────────────────── */
.app-shell {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ─────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 24px 20px 20px;
  border-bottom: 1px solid var(--border);
}

.brand-mark {
  width: 28px; height: 28px;
  background: var(--ink-900);
  border-radius: 7px;
  position: relative;
  flex-shrink: 0;
  transition: background var(--dur);
}
.brand-mark::after {
  content: '';
  position: absolute;
  bottom: 5px; right: 5px;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 2px;
}

.brand-name {
  font-family: 'Instrument Serif', serif;
  font-size: 1.15rem;
  color: var(--ink-900);
  letter-spacing: -0.3px;
}
.brand-name em { font-style: italic; }

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  border: none;
  background: transparent;
  color: var(--ink-600);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  text-align: left;
  transition: background var(--dur), color var(--dur);
  position: relative;
}

.nav-item:hover {
  background: var(--surface-alt);
  color: var(--ink-900);
}

.nav-item.active {
  background: var(--ink-900);
  color: var(--canvas);
}
body.dark .nav-item.active {
  background: var(--ink-900);
  color: var(--canvas);
}

.nav-icon {
  width: 18px; height: 18px;
  flex-shrink: 0;
}

.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: white;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 99px;
  line-height: 1.6;
  display: none;
}
.nav-badge.visible { display: inline; }

.sidebar-footer {
  padding: 12px 10px 20px;
  border-top: 1px solid var(--border);
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  background: transparent;
  border: none;
  color: var(--ink-400);
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  transition: background var(--dur), color var(--dur);
}
.theme-toggle:hover { background: var(--surface-alt); color: var(--ink-900); }

.theme-icon { width: 18px; height: 18px; flex-shrink: 0; }

.mobile-close {
  display: none;
  position: absolute;
  top: 16px; right: 16px;
  background: none; border: none;
  font-size: 1.1rem;
  color: var(--ink-400);
}

/* Overlay for mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 190;
  backdrop-filter: blur(2px);
}

/* ── MOBILE TOP BAR ──────────────────────────────────────── */
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 54px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 180;
  align-items: center;
  padding: 0 16px;
  justify-content: space-between;
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none; border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--ink-900);
  border-radius: 2px;
}

.mobile-brand {
  font-family: 'Instrument Serif', serif;
  font-size: 1.1rem;
  color: var(--ink-900);
}
.mobile-brand em { font-style: italic; }

.theme-toggle-mobile {
  background: none; border: none;
  color: var(--ink-400);
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
}
.theme-toggle-mobile svg { width: 18px; height: 18px; }

/* ── MAIN CONTENT ────────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  padding: 40px 44px 80px;
  max-width: 900px;
}

/* ── TAB PANELS ──────────────────────────────────────────── */
.tab-panel { display: none; animation: fadeIn 0.2s var(--ease); }
.tab-panel.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── PANEL HEADER ────────────────────────────────────────── */
.panel-header {
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.panel-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.panel-title {
  font-family: 'Instrument Serif', serif;
  font-size: 2.2rem;
  font-weight: 400;
  letter-spacing: -0.5px;
  color: var(--ink-900);
  line-height: 1.2;
}

/* ── KPI ROW ─────────────────────────────────────────────── */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 18px 16px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: border-color var(--dur), box-shadow var(--dur);
}
.kpi-card:hover { box-shadow: var(--shadow-md); }
.kpi-card.kpi-danger { border-color: var(--danger-dim); }

.kpi-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.4px;
  color: var(--ink-400);
  text-transform: uppercase;
}

.kpi-value {
  font-family: 'Instrument Serif', serif;
  font-size: 1.8rem;
  letter-spacing: -0.5px;
  color: var(--ink-900);
  line-height: 1.1;
  margin: 4px 0 10px;
}
.kpi-value.danger { color: var(--danger); }

.kpi-track {
  height: 3px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}
.kpi-fill {
  height: 100%;
  background: var(--ink-400);
  border-radius: 99px;
  width: 0%;
  transition: width 0.6s var(--ease);
}
.kpi-fill.accent { background: var(--accent); }
.kpi-fill.danger { background: var(--danger); }

/* ── PANEL BLOCK ─────────────────────────────────────────── */
.panel-block {
  margin-bottom: 28px;
}

.block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.block-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: 0.1px;
}

.title-urgent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--danger);
  color: white;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 50%;
  vertical-align: middle;
  margin-left: 6px;
}

.text-link {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0;
  transition: color var(--dur);
}
.text-link:hover { color: var(--accent-hover); }

/* ── TASK LIST ───────────────────────────────────────────── */
.task-list { display: flex; flex-direction: column; gap: 6px; }

.task-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 11px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--dur), opacity var(--dur), transform var(--dur);
  animation: slideIn 0.18s var(--ease) both;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.task-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.task-card.is-completed { opacity: 0.5; }
.task-card.is-completed .task-title { text-decoration: line-through; }

/* Priority indicator stripe on left edge */
.task-card { position: relative; padding-left: 18px; }
.task-card::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 3px;
  border-radius: 0 2px 2px 0;
}
.task-card.p-high::before   { background: var(--p-high); }
.task-card.p-medium::before { background: var(--p-medium); }
.task-card.p-low::before    { background: var(--p-low); }

/* Checkbox */
.task-check {
  width: 18px; height: 18px;
  border: 1.5px solid var(--border-strong);
  border-radius: 5px;
  flex-shrink: 0;
  background: var(--surface-alt);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background var(--dur), border-color var(--dur);
}
.task-check:hover { border-color: var(--accent); }
.task-check.checked {
  background: var(--accent);
  border-color: var(--accent);
}
.task-check.checked::after {
  content: '';
  display: block;
  width: 9px; height: 5px;
  border-left: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(-45deg) translateY(-1px);
}

.task-info { flex: 1; min-width: 0; }
.task-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--dur);
}
.task-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}
.task-deadline {
  font-size: 0.72rem;
  color: var(--ink-400);
}
.task-deadline.is-overdue { color: var(--danger); font-weight: 600; }

.task-priority-pill {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 99px;
  text-transform: capitalize;
}
.pill-high   { background: var(--danger-dim);  color: var(--danger); }
.pill-medium { background: #fef3e2;             color: var(--warning); }
.pill-low    { background: var(--success-dim); color: var(--success); }
body.dark .pill-medium { background: #2a1e08; }

.task-delete {
  background: none; border: none;
  color: var(--ink-200);
  font-size: 1rem;
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 5px;
  flex-shrink: 0;
  transition: color var(--dur), background var(--dur);
  line-height: 1;
}
.task-delete:hover { color: var(--danger); background: var(--danger-dim); }

/* Empty state */
.empty-state {
  font-size: 0.83rem;
  color: var(--ink-400);
  font-style: italic;
  padding: 6px 2px;
  display: none;
}
.empty-state.visible { display: block; }

/* ── FORM CARD ───────────────────────────────────────────── */
.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
}

.form-heading {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink-400);
  margin-bottom: 16px;
}

.task-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}
.span-full { grid-column: 1 / -1; }
.form-action { display: flex; align-items: flex-end; }

.form-field { display: flex; flex-direction: column; gap: 5px; }

.form-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: var(--ink-600);
  text-transform: uppercase;
}

.form-input {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-size: 0.875rem;
  color: var(--ink-900);
  outline: none;
  transition: border-color var(--dur), background var(--dur);
  width: 100%;
}
.form-input::placeholder { color: var(--ink-200); }
.form-input:focus {
  border-color: var(--accent);
  background: var(--surface);
}
.form-input:hover:not(:focus) { border-color: var(--border-strong); }

.form-select { appearance: none; cursor: pointer; }

/* ── TASK GROUPS ─────────────────────────────────────────── */
.task-groups { display: flex; flex-direction: column; gap: 28px; }

.group-header { margin-bottom: 10px; }

.group-label-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.group-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ink-900);
}

.group-pip {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.pip-danger { background: var(--danger); }
.pip-accent { background: var(--accent); }
.pip-muted  { background: var(--ink-200); }

.group-count {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ink-400);
  background: var(--surface-alt);
  border: 1px solid var(--border);
  padding: 1px 7px;
  border-radius: 99px;
}

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  transition: background var(--dur), transform var(--dur), box-shadow var(--dur), color var(--dur), opacity var(--dur);
  letter-spacing: 0.1px;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--ink-900);
  color: var(--canvas);
}
.btn-primary:hover:not(:disabled) {
  background: var(--ink-600);
  box-shadow: 0 4px 12px rgba(26,24,20,0.18);
}
body.dark .btn-primary { background: var(--ink-900); color: var(--canvas); }
body.dark .btn-primary:hover:not(:disabled) { background: var(--ink-600); }

.btn-secondary {
  background: var(--surface-alt);
  color: var(--ink-900);
  border: 1px solid var(--border);
}
.btn-secondary:hover:not(:disabled) { background: var(--border); }

.btn-ghost {
  background: transparent;
  color: var(--ink-600);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) { background: var(--surface-alt); color: var(--ink-900); }

/* ── FOCUS TIMER ─────────────────────────────────────────── */
.timer-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding-top: 12px;
}

.timer-face-wrap {
  position: relative;
  width: 220px; height: 220px;
}

.ring-svg {
  width: 100%; height: 100%;
  transform: rotate(-90deg);
}

.ring-track {
  fill: none;
  stroke: var(--border);
  stroke-width: 7;
}

.ring-progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 7;
  stroke-linecap: round;
  stroke-dasharray: 603;      /* 2π × 96 ≈ 603 */
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear, stroke var(--dur);
}
.ring-progress.finished { stroke: var(--success); }

.timer-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.timer-clock {
  font-family: 'Geist Mono', monospace;
  font-size: 3rem;
  font-weight: 600;
  color: var(--ink-900);
  letter-spacing: -1px;
  line-height: 1;
}

.timer-status-text {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--ink-400);
  margin-top: 5px;
}

.timer-controls {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.session-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-sm);
}

.session-total {
  font-family: 'Instrument Serif', serif;
  font-size: 1.1rem;
  color: var(--accent);
}

.session-list { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }

.session-empty-msg {
  font-size: 0.83rem;
  color: var(--ink-400);
  font-style: italic;
  padding: 4px 0;
}

.session-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  background: var(--surface-alt);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  animation: slideIn 0.2s var(--ease) both;
}
.session-item-label { color: var(--ink-600); }
.session-item-time  { font-family: 'Geist Mono', monospace; color: var(--accent); font-weight: 600; font-size: 0.78rem; }

/* ── ANALYTICS ───────────────────────────────────────────── */
.analytics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.an-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--dur);
}
.an-card:hover { box-shadow: var(--shadow-md); }
.an-card.wide { grid-column: 1 / -1; }
.an-card.danger { border-color: var(--danger-dim); }

.an-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink-400);
  margin-bottom: 8px;
}

.an-big {
  font-family: 'Instrument Serif', serif;
  font-size: 2.8rem;
  letter-spacing: -1px;
  color: var(--ink-900);
  line-height: 1;
  margin-bottom: 6px;
}
.an-big.danger { color: var(--danger); }

.an-sub { font-size: 0.8rem; color: var(--ink-400); }

/* Completion rate bar */
.rate-row { display: flex; align-items: center; gap: 12px; margin: 10px 0 8px; }
.rate-track {
  flex: 1; height: 6px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}
.rate-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 99px;
  width: 0%;
  transition: width 0.7s var(--ease);
}
.rate-pct {
  font-family: 'Geist Mono', monospace;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 36px;
}

/* Priority breakdown */
.priority-list { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; }
.priority-row { display: flex; align-items: center; gap: 10px; }
.p-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.p-high   { background: var(--p-high); }
.p-medium { background: var(--p-medium); }
.p-low    { background: var(--p-low); }
.p-name   { font-size: 0.8rem; font-weight: 500; color: var(--ink-600); width: 52px; }
.p-bar-track {
  flex: 1; height: 5px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}
.p-bar-fill {
  height: 100%; width: 0%;
  border-radius: 99px;
  transition: width 0.6s var(--ease);
}
.p-high-fill   { background: var(--p-high); }
.p-medium-fill { background: var(--p-medium); }
.p-low-fill    { background: var(--p-low); }
.p-count { font-family: 'Geist Mono', monospace; font-size: 0.8rem; font-weight: 600; color: var(--ink-600); min-width: 20px; text-align: right; }

/* ── POMODORO CYCLE — MODE TOKENS ───────────────────────────────────── */

/*
  Each mode gets its own accent applied via data-mode on #timerFaceWrap.
  The SVG ring colour is driven by the .ring-mode-* class on the circle.
  CSS variables cascade down into the badge, status text, etc.
*/

#timerFaceWrap[data-mode="focus"]      { --mode-color: var(--accent);     --mode-bg: var(--accent-dim); }
#timerFaceWrap[data-mode="shortBreak"] { --mode-color: #2a8a6e;           --mode-bg: #d8f5ee; }
#timerFaceWrap[data-mode="longBreak"]  { --mode-color: #2a6a8a;           --mode-bg: #d8eef5; }

body.dark #timerFaceWrap[data-mode="shortBreak"] { --mode-bg: #0e2820; }
body.dark #timerFaceWrap[data-mode="longBreak"]  { --mode-bg: #0e2028; }

/* ── RING COLOUR VARIANTS ────────────────────────────────────────────── */

.ring-progress.ring-mode-focus      { stroke: var(--accent); }
.ring-progress.ring-mode-short      { stroke: #2a8a6e; }
.ring-progress.ring-mode-long       { stroke: #2a6a8a; }

/* ── TIMER MODE BAR ──────────────────────────────────────────────────── */

.timer-mode-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 4px;
}

.mode-badge {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 99px;
  background: var(--mode-bg, var(--accent-dim));
  color: var(--mode-color, var(--accent));
  transition: background 0.35s var(--ease), color 0.35s var(--ease);
  border: 1px solid transparent;
}

.sessions-counter {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--ink-400);
  letter-spacing: 0.2px;
}

/* ── CYCLE DOTS ──────────────────────────────────────────────────────── */

.cycle-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.cycle-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  border: 1.5px solid var(--border-strong);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.cycle-dot.filled {
  background: var(--mode-color, var(--accent));
  border-color: var(--mode-color, var(--accent));
  transform: scale(1.15);
}

/* ── SESSION LOG — type variants ─────────────────────────────────────── */

.session-total-label {
  font-size: 0.75rem;
  color: var(--ink-400);
  margin-bottom: 10px;
  margin-top: -4px;
}

.session-item-icon {
  font-size: 0.85rem;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
}

.session-item { gap: 8px; }   /* override to make room for icon */

.session-item.session-type-focus      .session-item-time { color: var(--accent); }
.session-item.session-type-shortBreak .session-item-time { color: #2a8a6e; }
.session-item.session-type-longBreak  .session-item-time { color: #2a6a8a; }

/* ── TIMER CLOCK — mode colour tint ─────────────────────────────────── */

.timer-clock {
  transition: color 0.35s var(--ease);
}

#timerFaceWrap[data-mode="shortBreak"] .timer-clock { color: #2a8a6e; }
#timerFaceWrap[data-mode="longBreak"]  .timer-clock { color: #2a6a8a; }
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink-900);
  color: var(--canvas);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 9px 20px;
  border-radius: 99px;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  white-space: nowrap;
}
.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .main-content { padding: 32px 28px 60px; }
}

@media (max-width: 720px) {
  .sidebar {
    transform: translateX(-100%);
    box-shadow: none;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-md);
  }
  .sidebar-overlay.open { display: block; }
  .mobile-close { display: block; }
  .mobile-topbar { display: flex; }

  .main-content {
    margin-left: 0;
    padding: 74px 16px 60px;
    max-width: 100%;
  }

  .kpi-row { grid-template-columns: 1fr; }

  .task-form-grid {
    grid-template-columns: 1fr;
  }
  .span-full { grid-column: 1; }
  .form-action .btn { width: 100%; justify-content: center; }

  .timer-clock { font-size: 2.4rem; }

  .analytics-grid { grid-template-columns: 1fr; }
  .an-card.wide { grid-column: 1; }

  .panel-title { font-size: 1.7rem; }
}

@media (max-width: 400px) {
  .timer-face-wrap { width: 180px; height: 180px; }
  .ring-svg circle { r: 80; } /* override for tiny screens — handled inline in JS */
}