/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
               Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  background: #f7f8fb;
  color: #0f172a;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
button { font-family: inherit; cursor: pointer; }

:root {
  --primary:        #2563eb;
  --primary-hover:  #1d4ed8;
  --primary-light:  #dbeafe;
  --text:           #0f172a;
  --text-muted:     #64748b;
  --border:         #e2e8f0;
  --bg:             #f7f8fb;
  --card-bg:        #ffffff;
  --success:        #16a34a;
  --danger:         #dc2626;
  --warning:        #d97706;
  --radius:         12px;
  --radius-sm:      8px;
  --shadow-sm:      0 1px 2px rgba(15,23,42,0.04);
  --shadow-md:      0 4px 12px rgba(15,23,42,0.08);
  --shadow-lg:      0 10px 30px rgba(15,23,42,0.12);
}

/* ---------- Layout ---------- */
.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}
.brand-icon { font-size: 32px; line-height: 1; }
.brand h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand-sub {
  margin: 0;
  font-size: 12px;
  color: var(--text-muted);
}
.nav { display: flex; gap: 4px; }
.nav-btn {
  background: none;
  border: none;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-weight: 500;
  font-size: 14px;
}
.nav-btn:hover { background: #f1f5f9; color: var(--text); }
.nav-btn.active { background: var(--primary-light); color: var(--primary); }
.nav-btn#btn-add-task {
  background: var(--primary);
  color: white;
}
.nav-btn#btn-add-task:hover { background: var(--primary-hover); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  width: 100%;
  flex: 1;
}
.view.hidden { display: none; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  color: white;
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}
.hero h2 {
  margin: 4px 0 0;
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.hero .eyebrow {
  margin: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.85;
}
.hero-sub {
  margin: 8px 0 0;
  opacity: 0.9;
  font-size: 15px;
}
.hero-stats {
  display: flex;
  gap: 16px;
}
.stat {
  background: rgba(255,255,255,0.15);
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  text-align: center;
  min-width: 88px;
}
.stat-value {
  font-size: 28px;
  font-weight: 700;
  display: block;
  line-height: 1.1;
}
.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

/* ---------- Cards & grid ---------- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 12px;
}
.card-head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
}
.card-head p.muted { margin: 0; font-size: 13px; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

/* ---------- Task list ---------- */
.task-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.task-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 4px;
  border-top: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.1s;
}
.task-item:first-child { border-top: none; }
.task-item:hover { background: #f8fafc; }
.task-item .check {
  margin-top: 2px;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border-radius: 4px;
  border: 2px solid #cbd5e1;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.task-item.completed .check {
  background: var(--success);
  border-color: var(--success);
}
.task-item.completed .check::after {
  content: "✓";
  color: white;
  font-size: 13px;
  font-weight: 700;
}
.task-body { flex: 1; min-width: 0; }
.task-title {
  font-size: 14px;
  font-weight: 500;
  margin: 0;
  color: var(--text);
}
.task-item.completed .task-title {
  text-decoration: line-through;
  color: var(--text-muted);
}
.task-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  flex-wrap: wrap;
}
.chip {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: white;
}
.chip.priority-high { background: var(--danger); }
.chip.priority-medium { background: var(--warning); }
.chip.priority-low { background: #94a3b8; }
.chip.overdue { background: #991b1b; }
.task-meta .muted { font-size: 12px; color: var(--text-muted); }

.task-list.detailed .task-item {
  padding: 14px 8px;
}
.task-list.detailed .task-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin: 4px 0 0;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.empty {
  text-align: center;
  padding: 24px 16px;
  color: var(--text-muted);
  font-size: 14px;
}

/* ---------- Year grid ---------- */
.year-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.month-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
}
.month-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.month-card.current {
  border-color: var(--primary);
  background: var(--primary-light);
}
.month-card-name {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 8px;
}
.month-card-progress {
  height: 6px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 6px;
}
.month-card-progress-fill {
  height: 100%;
  background: var(--primary);
  transition: width 0.3s;
}
.month-card-count {
  font-size: 11px;
  color: var(--text-muted);
}

/* ---------- Month header ---------- */
.month-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 16px;
}
.month-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}
.month-nav h2 {
  margin: 0;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  min-width: 180px;
  text-align: center;
}
.icon-btn {
  background: #fff;
  border: 1px solid var(--border);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 16px;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
}

/* ---------- Drawer / modal ---------- */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  justify-content: flex-end;
}
.drawer.hidden { display: none; }
.drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15,23,42,0.4);
  animation: fadeIn 0.15s ease-out;
}
.drawer-panel {
  position: relative;
  background: #fff;
  width: 480px;
  max-width: 100%;
  height: 100%;
  overflow-y: auto;
  padding: 32px 28px;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.2s ease-out;
}
@keyframes slideIn {
  from { transform: translateX(16px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 26px;
  line-height: 1;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}
.close-btn:hover { background: #f1f5f9; color: var(--text); }
.drawer-panel h2 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.drawer-panel p { margin: 0 0 16px; }
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 8px;
}
.detail-meta {
  margin-top: 20px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.meta-row {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid #f1f5f9;
  font-size: 14px;
}
.meta-row:last-child {
  align-items: flex-start;
  border-bottom: none;
}
.meta-label { color: var(--text-muted); font-weight: 500; }

.drawer-actions {
  margin-top: 24px;
  display: flex;
  gap: 8px;
}
.btn {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  flex: 1;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: #fff; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: #f1f5f9; }

/* ---------- Form ---------- */
.form label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 14px;
}
.form input,
.form select,
.form textarea,
.date-input,
.textarea {
  display: block;
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  margin-top: 4px;
}
.form textarea { resize: vertical; }
.form input:focus,
.form select:focus,
.form textarea:focus,
.date-input:focus,
.textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}
.row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ---------- Misc ---------- */
.link-btn {
  background: none;
  border: none;
  color: var(--primary);
  padding: 0;
  font: inherit;
  cursor: pointer;
}
.link-btn:hover { text-decoration: underline; }
.muted { color: var(--text-muted); font-size: 13px; }
.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: #f1f5f9;
  color: var(--text);
}
.pill-danger { background: #fee2e2; color: var(--danger); }

.footer {
  text-align: center;
  padding: 20px;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  background: #fff;
}

/* ---------- Feedback promo card ---------- */
.feedback-promo {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 1px solid #fcd34d;
  border-radius: var(--radius);
  padding: 18px 20px;
  cursor: pointer;
  transition: box-shadow 0.15s, transform 0.15s;
  margin-bottom: 24px;
}
.feedback-promo:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.feedback-promo:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }
.feedback-promo-icon {
  font-size: 32px;
  line-height: 1;
  flex-shrink: 0;
}
.feedback-promo-body h3 {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 600;
  color: #78350f;
}
.feedback-promo-body p {
  margin: 0;
  font-size: 13px;
  color: #92400e;
}
.feedback-promo .btn { flex: 0 0 auto; min-width: 140px; }

/* ---------- Feature checklist (inside feedback modal) ---------- */
.feature-checklist {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  margin: 8px 0 18px;
}
.feature-option {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid #f1f5f9;
  cursor: pointer;
  align-items: flex-start;
}
.feature-option:first-child { border-top: none; }
.feature-option input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 1px 0 0;
  accent-color: var(--primary);
  cursor: pointer;
}
.feature-option-body { display: flex; flex-direction: column; gap: 2px; }
.feature-option-label { font-weight: 500; font-size: 14px; color: var(--text); }
.feature-option-desc { font-size: 12px; color: var(--text-muted); }

/* ---------- Feedback thanks state ---------- */
.feedback-thanks {
  text-align: center;
  padding: 16px 8px;
}
.feedback-thanks.hidden { display: none; }
.feedback-thanks-icon {
  font-size: 44px;
  line-height: 1;
  margin-bottom: 8px;
}
.feedback-thanks h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 700;
}
.feedback-thanks p { max-width: 360px; margin: 0 auto 20px; }
.feedback-thanks .btn { max-width: 200px; margin: 0 auto; }

/* ---------- Responsive ---------- */
@media (max-width: 780px) {
  .hero { grid-template-columns: 1fr; text-align: left; }
  .hero-stats { justify-content: flex-start; }
  .grid-2 { grid-template-columns: 1fr; }
  .year-grid { grid-template-columns: repeat(3, 1fr); }
  .brand h1 { font-size: 16px; }
  .brand-sub { display: none; }
}
@media (max-width: 520px) {
  .year-grid { grid-template-columns: repeat(2, 1fr); }
  .topbar-inner { flex-direction: column; align-items: stretch; gap: 8px; }
  .nav { justify-content: space-between; }
  .drawer-panel { width: 100%; padding: 24px 20px; }
  .meta-row { grid-template-columns: 1fr; gap: 4px; }
  .hero h2 { font-size: 26px; }
  .feedback-promo {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .feedback-promo .btn { width: 100%; }
}