*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --accent: #2563eb;
  --accent-rgb: 37, 99, 235;
  --accent-2: #7c3aed;
  --accent-2-rgb: 124, 58, 237;
  --radius: 12px;
  --max-width: 800px;
  --gap: 1rem;
  --transition: 200ms;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --surface: #071029;
    --text: #e6eef8;
    --muted: #9fb0c9;
    --accent: #60a5fa;
    --accent-rgb: 96, 165, 250;
    --accent-2: #a78bfa;
    --accent-2-rgb: 167, 139, 250;
  }
}

html {
  height: 100%;
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color-scheme: light dark;
}

body {
  margin: 0 auto;
  min-height: 100%;
  max-width: var(--max-width);
  padding: clamp(18px, 4vw, 36px);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  background: transparent;
  -webkit-font-smoothing: antialiased;
}

h1 {
  margin: 0 0 0.5rem 0;
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  letter-spacing: -0.02em;
  background-image: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  position: relative;
}

h1::after {
  content: "";
  display: block;
  height: 4px;
  width: 56px;
  margin-top: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0.9;
}

p {
  margin: 0 0 1rem 0;
  font-size: clamp(0.95rem, 2.2vw, 1.06rem);
  color: var(--muted);
  max-width: 60ch;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
}

a:hover,
a:focus {
  color: var(--accent-2);
  border-bottom-color: var(--accent-2);
  transform: translateY(-1px);
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 3px solid rgba(var(--accent-rgb), 0.18);
  outline-offset: 3px;
  border-radius: 6px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 480px) {
  body {
    padding: 16px;
  }
  h1 {
    font-size: clamp(1.25rem, 6.5vw, 1.75rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  html,
  body {
    background: #fff;
    color: #000;
  }
  h1 {
    -webkit-text-fill-color: initial;
    background-image: none;
    color: #000;
  }
  a {
    text-decoration: underline;
  }
}

body.av-dark {
  --bg: #071029;
  --surface: #071029;
  --text: #e6eef8;
  --muted: #9fb0c9;
  --accent: #60a5fa;
  --accent-rgb: 96, 165, 250;
  --accent-2: #a78bfa;
  --accent-2-rgb: 167, 139, 250;
}

main {
  margin-top: 18px;
}

#note-app {
  background: var(--surface);
  padding: clamp(12px, 3vw, 20px);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.06);
  border: 1px solid rgba(15, 23, 42, 0.04);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

#note-app h2 {
  margin: 0 0 0.5rem 0;
  font-size: clamp(1rem, 2.8vw, 1.25rem);
  color: var(--text);
}

#note-form {
  display: flex;
  gap: var(--gap);
  align-items: center;
  flex-wrap: wrap;
  margin: 0;
}

#note-form label {
  font-size: 0.95rem;
  color: var(--muted);
}

#note-input,
#search-input,
.editor {
  flex: 1 1 auto;
  min-width: 160px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.06);
  background: transparent;
  font-size: 1rem;
  color: var(--text);
  transition: box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

#note-input::placeholder,
#search-input::placeholder {
  color: rgba(71, 85, 105, 0.5);
}

#note-input:focus,
#search-input:focus,
.editor:focus {
  outline: none;
  border-color: rgba(var(--accent-rgb), 0.45);
  box-shadow: 0 8px 30px rgba(var(--accent-rgb), 0.06);
}

button,
#add-button,
#clear-button,
.note-actions button,
.av-controls button {
  font: inherit;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
  transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition), background var(--transition);
  -webkit-tap-highlight-color: transparent;
}

button:hover,
#add-button:hover,
#clear-button:hover,
.note-actions button:hover,
.av-controls button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(var(--accent-rgb), 0.08);
}

#clear-button {
  background: transparent;
  color: var(--muted);
  border-color: rgba(15, 23, 42, 0.06);
}

#add-button {
  white-space: nowrap;
}

.toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

#stats {
  color: var(--muted);
  font-size: 0.95rem;
}

#notes {
  margin-top: 12px;
  padding-left: 0;
  list-style: none;
}

.note-item {
  padding: 12px !important;
  margin: 8px 0 !important;
  border-radius: 8px !important;
  border: 1px solid rgba(15, 23, 42, 0.06) !important;
  background: var(--surface);
  box-shadow: 0 6px 18px rgba(2, 6, 23, 0.03);
  display: flex !important;
  justify-content: space-between !important;
  align-items: flex-start !important;
  gap: 12px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.note-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(2, 6, 23, 0.06);
}

.note-text {
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  font-size: 1rem;
}

.note-meta {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}

.note-actions {
  margin-left: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

.note-actions button {
  padding: 6px 10px;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: none;
}

.note-actions .edit {
  background: transparent;
  color: var(--accent);
  border-color: rgba(var(--accent-rgb), 0.12);
}

.note-actions .delete {
  background: linear-gradient(90deg, #ff7a7a, #ff5252);
  color: #fff;
  border: none;
}

.save {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
  border: none;
}

.cancel {
  background: transparent;
  color: var(--muted);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.editor {
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.empty {
  font-style: italic;
  color: var(--muted);
  padding: 8px 0;
}

#status {
  min-height: 1em;
  margin-top: 8px;
  color: var(--accent-2);
  font-weight: 600;
  transition: color var(--transition), opacity var(--transition);
}

@media (max-width: 680px) {
  #note-form {
    flex-direction: column;
    align-items: stretch;
  }
  #note-form label {
    margin-bottom: 6px;
  }
  #add-button,
  #clear-button {
    width: 100%;
  }
  .note-actions {
    flex-direction: row;
    align-items: center;
  }
  .note-actions button {
    padding: 8px 10px;
  }
}

@media (max-width: 420px) {
  body {
    padding: 12px;
  }
  #note-input,
  #search-input {
    font-size: 0.95rem;
  }
}

.av-controls {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.av-controls button {
  font: inherit;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid rgba(15, 23, 42, 0.06);
  cursor: pointer;
  background: var(--surface);
  color: var(--text);
  transition: transform var(--transition), opacity var(--transition), box-shadow var(--transition), background var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.av-controls button:focus {
  outline: 3px solid rgba(var(--accent-rgb, 37, 99, 235), 0.18);
  outline-offset: 3px;
  border-radius: 6px;
}

.av-controls button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(var(--accent-rgb, 37, 99, 235), 0.08);
}

.av-info {
  margin-top: 12px;
  font-size: 0.95rem;
  color: var(--muted);
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.av-counter {
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(15, 23, 42, 0.04);
  color: var(--text);
}

.av-clock {
  font-weight: 600;
  color: var(--muted);
}

.av-message {
  margin-left: 8px;
  color: var(--muted);
}

.av-dark .av-controls button {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.06);
}