:root {
  color-scheme: light dark;
  --font-system: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Helvetica, Arial, sans-serif;
  --bg: #f7f8f2;
  --bg-accent: radial-gradient(circle at 12% 10%, #fffef7 0%, #f3f7ff 38%, #fff7d8 76%, #f5f8ff 100%);
  --card: rgba(255, 255, 255, 0.82);
  --card-strong: #fffef9;
  --text: #283248;
  --muted: #6d7891;
  --line: rgba(120, 132, 156, 0.24);
  --line-strong: rgba(120, 132, 156, 0.4);
  --chip: #edf3ff;
  --chip-warm: #fff4c9;
  --chip-active: #93abd4;
  --chip-active-text: #1f2b3f;
  --primary: #89a8d9;
  --primary-strong: #7d9fd3;
  --shadow-soft: 0 16px 40px rgba(73, 88, 120, 0.14);
  --shadow-card: 0 10px 26px rgba(73, 88, 120, 0.1);
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b2131;
    --bg-accent: radial-gradient(circle at 12% 8%, #2a3450 0%, #232c43 45%, #312f24 100%);
    --card: rgba(31, 39, 59, 0.84);
    --card-strong: #252f46;
    --text: #ecf1fc;
    --muted: #b6c1db;
    --line: rgba(178, 191, 222, 0.26);
    --line-strong: rgba(178, 191, 222, 0.42);
    --chip: rgba(65, 80, 113, 0.88);
    --chip-warm: rgba(96, 88, 61, 0.88);
    --chip-active: #9fb6df;
    --chip-active-text: #122039;
    --primary: #9ab3dd;
    --primary-strong: #a7bee5;
    --shadow-soft: 0 18px 44px rgba(0, 0, 0, 0.42);
    --shadow-card: 0 12px 30px rgba(0, 0, 0, 0.3);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-system);
  color: var(--text);
  background: var(--bg-accent);
  line-height: 1.45;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  width: min(1100px, 100% - 36px);
  margin: 34px auto 30px;
  animation: rise 320ms ease;
  position: relative;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.app-title {
  margin: 0;
  font-size: clamp(1.6rem, 2.4vw, 2.15rem);
  letter-spacing: -0.02em;
}

.app-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  max-width: 780px;
}

.shortcut-hints {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.kbd {
  font-size: 0.76rem;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 9px;
  padding: 5px 8px;
  backdrop-filter: blur(12px);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(18px);
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.tab-button {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  border-radius: 12px;
  padding: 9px 13px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 130ms ease, border-color 130ms ease, background 130ms ease;
}

.tab-button:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
}

.tab-button:focus-visible,
.chip:focus-visible,
.mode-btn:focus-visible,
.btn:focus-visible,
.note-button:focus-visible,
textarea:focus-visible,
.search-input:focus-visible,
input[type="range"]:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--chip-active) 70%, transparent);
  outline-offset: 2px;
}

.tab-button.active {
  background: var(--chip-active);
  color: var(--chip-active-text);
  border-color: transparent;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.layout-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 14px;
}

.panel {
  padding: 18px;
}

.input-label {
  font-size: 0.92rem;
  color: var(--muted);
  margin-bottom: 6px;
  display: block;
}

textarea {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card-strong);
  color: var(--text);
  padding: 13px 14px;
  font-size: 1rem;
  line-height: 1.45;
  outline: none;
}

textarea:focus,
input[type="search"]:focus,
input[type="text"]:focus {
  border-color: var(--chip-active);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--chip-active) 25%, transparent);
}

.search-input {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--card-strong);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 11px;
  margin-bottom: 10px;
}

.control-group {
  margin-top: 14px;
}

.control-title {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 650;
  color: var(--muted);
  margin-bottom: 8px;
}

.chips,
.mode-switch,
.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip,
.mode-btn,
.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--chip);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.92rem;
  min-height: 40px;
  cursor: pointer;
  transition: transform 130ms ease, border-color 130ms ease, background 130ms ease;
}

.chip:hover,
.mode-btn:hover,
.btn:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
}

.chip.active,
.mode-btn.active {
  background: var(--chip-active);
  color: var(--chip-active-text);
  border-color: transparent;
}

.range-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--chip-active);
}

.range-value {
  min-width: 34px;
  text-align: right;
  font-weight: 700;
}

.btn {
  background: var(--primary);
  border-color: transparent;
  color: #fff;
  font-weight: 650;
  min-height: 44px;
}

.btn.secondary {
  background: var(--chip-warm);
  color: var(--text);
  border-color: var(--line);
  font-weight: 600;
}

.output-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.block {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card-strong);
  padding: 13px;
  position: relative;
}

.block h3 {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
}

.block p {
  margin: 8px 0 0;
}

.micro-content {
  margin-top: 8px;
}

.micro-title {
  margin: 0 0 6px;
  font-size: 0.86rem;
  font-weight: 640;
  color: var(--muted);
}

.micro-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 6px;
}

.micro-list li {
  line-height: 1.38;
}

.immediate-actions {
  margin-top: 10px;
}

.library-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 14px;
}

.library-list {
  max-height: 580px;
  overflow: auto;
  display: grid;
  gap: 8px;
}

.note-button {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card-strong);
  color: var(--text);
  text-align: left;
  padding: 10px;
  font-size: 0.9rem;
  cursor: pointer;
}

.note-button.active {
  border-color: color-mix(in srgb, var(--chip-active) 65%, white);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--chip-active) 45%, transparent);
}

.note-body h1,
.note-body h2,
.note-body h3 {
  margin-top: 0;
}

.note-empty-title {
  margin-top: 0;
}

.note-body p {
  color: var(--text);
  margin: 0 0 12px;
}

.note-body ul {
  margin: 0 0 14px;
  padding-left: 20px;
}

.status-bar {
  min-height: 20px;
  margin: 14px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
}

.status-bar.is-success {
  color: color-mix(in srgb, #10b981 72%, var(--text));
}

.status-bar.is-warning {
  color: color-mix(in srgb, #f59e0b 74%, var(--text));
}

.palette {
  position: fixed;
  inset: 0;
  background: rgba(7, 10, 18, 0.35);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 80;
  backdrop-filter: blur(5px);
}

.palette.show {
  display: flex;
}

.palette-card {
  width: min(580px, calc(100% - 30px));
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow-soft);
}

.palette-title {
  margin: 0 0 10px;
  font-size: 0.95rem;
}

.palette-grid {
  display: grid;
  gap: 10px;
}

.hidden {
  display: none !important;
}

@media (max-width: 980px) {
  .layout-grid,
  .library-layout {
    grid-template-columns: 1fr;
  }

  .shortcut-hints {
    display: none;
  }
}

@media (max-width: 680px) {
  main {
    width: calc(100% - 20px);
    margin: 16px auto 24px;
  }

  .panel {
    padding: 14px;
  }

  textarea {
    min-height: 132px;
  }

  .app-header {
    flex-direction: column;
  }

  .chip,
  .mode-btn,
  .btn {
    min-height: 44px;
  }
}