:root {
  --bg: #fafaff;
  --bg-elev: #ffffff;
  --bg-soft: #f4f4f9;
  --bg-glass: rgba(255, 255, 255, 0.7);
  --text: #0f0f1e;
  --text-soft: #6b6b85;
  --text-muted: #9a9ab0;
  --border: #e8e8f0;
  --border-soft: #f0f0f7;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-soft: #eef2ff;
  --primary-glow: rgba(99, 102, 241, 0.12);
  --success: #10b981;
  --success-soft: #d1fae5;
  --warning: #f59e0b;
  --warning-soft: #fef3c7;
  --danger: #ef4444;
  --danger-soft: #fee2e2;
  --tiu: #6366f1;
  --twk: #10b981;
  --tkp: #f59e0b;
  --shadow-xs: 0 1px 2px rgba(15, 15, 30, 0.04);
  --shadow-sm: 0 1px 3px rgba(15, 15, 30, 0.06), 0 1px 2px rgba(15, 15, 30, 0.04);
  --shadow-md: 0 4px 12px rgba(15, 15, 30, 0.06), 0 2px 4px rgba(15, 15, 30, 0.04);
  --shadow-lg: 0 12px 32px rgba(15, 15, 30, 0.08), 0 4px 12px rgba(15, 15, 30, 0.04);
  --shadow-xl: 0 24px 48px rgba(15, 15, 30, 0.10), 0 8px 16px rgba(15, 15, 30, 0.06);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --bg: #0a0a14;
  --bg-elev: #14142a;
  --bg-soft: #1c1c38;
  --bg-glass: rgba(20, 20, 42, 0.7);
  --text: #f5f5fa;
  --text-soft: #9999b8;
  --text-muted: #6b6b85;
  --border: #2a2a48;
  --border-soft: #1f1f3a;
  --primary: #818cf8;
  --primary-hover: #a5b4fc;
  --primary-soft: #1e1e3f;
  --primary-glow: rgba(129, 140, 248, 0.18);
  --success: #34d399;
  --success-soft: #064e3b;
  --warning: #fbbf24;
  --warning-soft: #78350f;
  --danger: #f87171;
  --danger-soft: #7f1d1d;
  --tiu: #818cf8;
  --twk: #34d399;
  --tkp: #fbbf24;
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.35), 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45), 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.55), 0 8px 16px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  letter-spacing: -0.011em;
}

button { font-family: inherit; }
input, textarea, select { font-family: inherit; letter-spacing: inherit; }

.app {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px;
  min-height: 100vh;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding: 18px 24px;
  background: var(--bg-elev);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  backdrop-filter: blur(12px);
}

.header h1 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.025em;
  background: linear-gradient(135deg, var(--primary) 0%, var(--twk) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header > div:last-child { display: flex; align-items: center; gap: 14px; }

.clock-widget {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6px 18px;
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
  min-width: 180px;
  font-variant-numeric: tabular-nums;
}

.clock-time {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  line-height: 1.1;
  font-family: "SF Mono", "Cascadia Code", "Consolas", "Menlo", monospace;
}

.clock-date {
  font-size: 11px;
  color: var(--text-soft);
  font-weight: 500;
  margin-top: 2px;
  line-height: 1.2;
}

[data-theme="dark"] .clock-widget {
  background: var(--bg-soft);
  border-color: var(--border-soft);
}

.status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  color: var(--text-soft);
  font-weight: 500;
  padding: 5px 10px;
  background: var(--bg-soft);
  border-radius: 999px;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px var(--success-soft);
  animation: pulse 2.5s ease-in-out infinite;
}

.dot.local {
  background: var(--text-muted);
  box-shadow: 0 0 0 3px var(--bg-soft);
  animation: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(0.92); }
}

.tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  background: var(--bg-elev);
  padding: 5px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
  border: 1px solid var(--border-soft);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar { display: none; }

.tab {
  flex: 1;
  min-width: max-content;
  padding: 10px 16px;
  background: transparent;
  border: none;
  color: var(--text-soft);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s var(--ease);
  white-space: nowrap;
  position: relative;
}

.tab:hover {
  background: var(--bg-soft);
  color: var(--text);
}

.tab.active {
  background: var(--primary);
  color: white;
  font-weight: 600;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.content {
  background: var(--bg-elev);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  animation: fadeIn 0.3s var(--ease-out);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.content h2 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
  color: var(--text);
}

.content > p {
  color: var(--text-soft);
  font-size: 13.5px;
  margin-bottom: 18px;
}

.card {
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-bottom: 12px;
  border: 1px solid var(--border-soft);
  transition: all 0.2s var(--ease);
}

.card:hover {
  border-color: var(--border);
}

.card h3, .card h4 {
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--text);
}

.card h3 { font-size: 15px; margin-bottom: 12px; }
.card h4 { font-size: 13.5px; margin-bottom: 10px; }

.slot {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  border-radius: var(--radius-lg);
  margin-bottom: 8px;
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-left: 4px solid var(--primary);
  transition: all 0.2s var(--ease);
  position: relative;
  overflow: hidden;
}

.slot::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--primary-glow) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.2s var(--ease);
  pointer-events: none;
}

.slot:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-xs);
  transform: translateX(2px);
}

.slot:hover::before { opacity: 1; }

.slot.active {
  background: var(--primary-soft);
  border-color: var(--primary);
  box-shadow: 0 4px 16px var(--primary-glow);
  transform: translateX(0);
}

.slot.active::before { opacity: 1; }

.slot.done {
  opacity: 0.5;
  background: var(--bg-soft);
}

.slot.done .title {
  text-decoration: line-through;
  text-decoration-color: var(--text-muted);
  text-decoration-thickness: 1.5px;
}

.slot.fixed {
  border-left-color: var(--text-muted);
  background: var(--bg-soft);
}

.slot.important {
  border-left-color: var(--warning);
  background: linear-gradient(90deg, var(--warning-soft) 0%, var(--bg-elev) 30%);
}

.slot .time {
  font-weight: 700;
  font-size: 12.5px;
  min-width: 110px;
  color: var(--text-soft);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.slot .time-end {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.slot .title {
  flex: 1;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -0.01em;
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.slot .topic {
  font-size: 12px;
  color: var(--text-soft);
  margin-top: 4px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  padding-left: 2px;
}

.slot .topic::before {
  content: "";
  width: 3px;
  height: 3px;
  background: var(--primary);
  border-radius: 50%;
  display: inline-block;
}

.slot .skipped-label {
  font-size: 11px;
  color: var(--danger);
  margin-top: 3px;
  font-weight: 500;
}

.day-cell .day-topic {
  font-size: 10.5px;
  margin-top: 4px;
  color: var(--text);
  font-weight: 500;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.day-cell .day-topic.muted {
  color: var(--text-soft);
  font-weight: 400;
}

.weakness-chip {
  padding: 4px 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s var(--ease);
}

.weakness-chip:hover {
  border-color: var(--primary);
}

.weakness-remove {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--danger);
  font-size: 14px;
  padding: 0;
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.15s var(--ease);
}

.weakness-remove:hover {
  background: var(--danger-soft);
}

.journal-history {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.journal-item {
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  transition: all 0.2s var(--ease);
  position: relative;
}

.journal-item:hover {
  border-color: var(--border);
  transform: translateX(2px);
  box-shadow: var(--shadow-xs);
}

.journal-item.active {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.journal-item.today {
  border-left: 3px solid var(--primary);
}

.journal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.journal-info {
  flex: 1;
  min-width: 0;
}

.journal-date {
  font-weight: 600;
  font-size: 13.5px;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
  text-transform: capitalize;
}

.journal-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-soft);
  flex-wrap: wrap;
}

.journal-mood {
  font-size: 18px;
  line-height: 1;
}

.journal-rating {
  color: var(--warning);
  font-size: 13px;
  letter-spacing: 1px;
}

.journal-weak-count {
  font-size: 11px;
  color: var(--danger);
  background: var(--danger-soft);
  padding: 1px 6px;
  border-radius: 999px;
  font-weight: 500;
}

.journal-preview {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.5;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--border-soft);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.journal-edit,
.journal-del {
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 6px;
}

.journal-del {
  color: var(--danger);
  font-size: 16px;
  padding: 2px 8px;
}

.today-badge {
  display: inline-block;
  background: var(--primary);
  color: white;
  font-size: 9px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  margin-right: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  vertical-align: middle;
}

.editing-badge {
  display: inline-block;
  background: var(--warning);
  color: white;
  font-size: 9px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  margin-right: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  vertical-align: middle;
  animation: pulse 2s ease-in-out infinite;
}

.edit-mode-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--warning) 0%, #f59e0b 100%);
  color: white;
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
  font-size: 13.5px;
}

.edit-mode-icon {
  font-size: 24px;
}

.edit-mode-banner > div {
  flex: 1;
}

.edit-mode-banner strong {
  display: block;
  font-size: 14px;
  margin-bottom: 2px;
}

.auto-fallback-hint {
  font-size: 11px;
  color: var(--text-soft);
  background: var(--bg-elev);
  border: 1px solid var(--border-soft);
  border-left: 3px solid var(--primary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  line-height: 1.5;
}

.auto-fallback-hint span {
  display: inline-block;
  font-size: 14px;
  color: var(--primary);
  margin-right: 4px;
  animation: spinIcon 2s linear infinite;
}

@keyframes spinIcon {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.auto-fallback-hint strong {
  color: var(--text);
  font-weight: 500;
}

.journal-item.editing {
  border-color: var(--warning);
  background: linear-gradient(90deg, var(--warning-soft) 0%, var(--bg-elev) 20%);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.15);
}

.journal-edit-btn {
  background: var(--primary) !important;
  color: white !important;
  border: none !important;
  padding: 6px 12px !important;
  font-size: 12px !important;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s var(--ease);
}

.journal-edit-btn:hover {
  background: var(--primary-hover) !important;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px var(--primary-glow);
}

.slot .meta {
  font-size: 12px;
  color: var(--text-soft);
}

.slot .actions { display: flex; gap: 6px; }

.btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 9px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s var(--ease);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  white-space: nowrap;
  letter-spacing: -0.005em;
}

.btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.btn:active { transform: translateY(0); }

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn.secondary {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}

.btn.secondary:hover {
  background: var(--bg-soft);
  border-color: var(--text-muted);
  box-shadow: var(--shadow-sm);
}

.btn.ghost {
  background: transparent;
  color: var(--text-soft);
}

.btn.ghost:hover {
  background: var(--bg-soft);
  color: var(--text);
  box-shadow: none;
}

.btn.danger {
  background: var(--danger);
}

.btn.danger:hover {
  background: #dc2626;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

.btn.success {
  background: var(--success);
}

.btn.success:hover {
  background: #059669;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn.icon {
  padding: 7px 10px;
  font-size: 13px;
}

input, textarea, select {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  font-size: 14px;
  transition: all 0.15s var(--ease);
  box-shadow: var(--shadow-xs);
}

input:hover, textarea:hover, select:hover {
  border-color: var(--text-muted);
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
}

textarea { min-height: 88px; resize: vertical; font-family: inherit; }

label {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-soft);
  margin-bottom: 6px;
  letter-spacing: 0.005em;
}

.row { display: flex; gap: 10px; align-items: center; }
.row > * { flex: 1; }
.row > button { flex: 0 0 auto; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.3;
}

.tag.tiu { background: var(--primary-soft); color: var(--tiu); }
.tag.twk { background: var(--success-soft); color: var(--twk); }
.tag.tkp { background: var(--warning-soft); color: var(--tkp); }
.tag.fixed {
  background: var(--bg-elev);
  color: var(--text-soft);
  border: 1px solid var(--border);
}

.stat {
  background: var(--bg-elev);
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  transition: all 0.2s var(--ease);
}

.stat:hover {
  border-color: var(--border);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.stat .label {
  font-size: 11.5px;
  color: var(--text-soft);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.stat .value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text);
  line-height: 1.1;
}

.progress-bar {
  background: var(--bg-soft);
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border-soft);
}

.progress-bar > div {
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--twk) 100%);
  border-radius: 999px;
  transition: width 0.4s var(--ease-out);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 15, 30, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
  animation: fadeIn 0.2s var(--ease-out);
}

.modal {
  background: var(--bg-elev);
  border-radius: var(--radius-xl);
  padding: 28px;
  max-width: 560px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-soft);
  animation: modalIn 0.25s var(--ease-out);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal h2 { margin-bottom: 18px; font-size: 19px; }

.empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--text-soft);
  font-size: 13.5px;
}

.empty-icon {
  font-size: 36px;
  margin-bottom: 12px;
  opacity: 0.5;
}

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg-elev);
  padding: 12px 22px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 500;
  z-index: 200;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s var(--ease-out);
  letter-spacing: -0.005em;
}

@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

.heatmap {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.heatmap .cell {
  aspect-ratio: 1;
  border-radius: 6px;
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  position: relative;
  transition: transform 0.15s var(--ease);
}

.heatmap .cell:hover { transform: scale(1.1); }

.heatmap .cell.lv1 { background: #dbeafe; border-color: #bfdbfe; }
.heatmap .cell.lv2 { background: #93c5fd; border-color: #60a5fa; }
.heatmap .cell.lv3 { background: #3b82f6; border-color: #2563eb; }
.heatmap .cell.lv4 { background: #1d4ed8; border-color: #1e40af; }

[data-theme="dark"] .heatmap .cell.lv1 { background: #1e3a8a; border-color: #1e40af; }
[data-theme="dark"] .heatmap .cell.lv2 { background: #1d4ed8; border-color: #2563eb; }
[data-theme="dark"] .heatmap .cell.lv3 { background: #3b82f6; border-color: #60a5fa; }
[data-theme="dark"] .heatmap .cell.lv4 { background: #93c5fd; border-color: #bfdbfe; }

.day-cell {
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  padding: 10px;
  min-height: 88px;
  font-size: 12.5px;
  border: 1px solid var(--border-soft);
  transition: all 0.2s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.day-cell:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: var(--border);
}

.day-cell.today {
  background: var(--primary-soft);
  border-color: var(--primary);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.day-cell .date {
  font-weight: 700;
  font-size: 13px;
}

.calendar-week {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 10px;
}

.calendar-week .dow {
  text-align: center;
  font-size: 11px;
  color: var(--text-soft);
  font-weight: 600;
  padding: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.compare-grid > div {
  background: var(--bg-soft);
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-soft);
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 999px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

::selection {
  background: var(--primary-glow);
  color: var(--primary-hover);
}

@media (max-width: 720px) {
  .app { padding: 12px; }
  .header { padding: 14px 16px; flex-wrap: wrap; gap: 10px; }
  .header h1 { font-size: 17px; }
  .clock-widget { min-width: 140px; padding: 5px 12px; }
  .clock-time { font-size: 17px; }
  .clock-date { font-size: 10px; }
  .content { padding: 18px; }
  .grid2, .grid3, .grid4 { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .slot { padding: 12px 14px; gap: 10px; }
  .slot .time { min-width: 80px; font-size: 11.5px; }
  .slot .title { font-size: 13.5px; }
  .stat .value { font-size: 22px; }
  .modal { padding: 20px; border-radius: var(--radius-lg); }
  .row { flex-direction: column; align-items: stretch; }
  .row > * { width: 100%; }
}

@media (max-width: 480px) {
  .tab { padding: 9px 12px; font-size: 12.5px; }
  .content h2 { font-size: 18px; }
}