:root {
  --bg: #10121a;
  --surface: #1a1d29;
  --surface-2: #22263a;
  --border: #2d3147;
  --text: #f0f2fa;
  --muted: #9aa0b8;
  --primary: #6d5dfc;
  --danger: #f43f5e;
}

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

body {
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.app {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: 1.9rem;
}

.search {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.7rem 1rem;
  color: var(--text);
  width: 260px;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.search:focus {
  border-color: var(--primary);
}

.note-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.row {
  display: flex;
  gap: 0.9rem;
}

.note-form input[type="text"],
.note-form textarea {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 0.9rem;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  width: 100%;
  outline: none;
  resize: vertical;
  transition: border-color 0.2s ease;
}

.note-form input[type="text"]:focus,
.note-form textarea:focus {
  border-color: var(--primary);
}

.note-form select {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem;
  color: var(--text);
  outline: none;
  cursor: pointer;
}

.actions {
  justify-content: flex-end;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 0.65rem 1.3rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.15s ease;
}

.btn:hover {
  filter: brightness(1.15);
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.1rem;
}

.note {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 6px solid var(--note-color, var(--primary));
  border-radius: 14px;
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  animation: fadeIn 0.25s ease;
}

.note:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

.note h3 {
  font-size: 1.05rem;
  word-break: break-word;
}

.note p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
  word-break: break-word;
  flex: 1;
}

.note .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--muted);
}

.note .controls {
  display: flex;
  gap: 0.5rem;
}

.icon-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: filter 0.15s ease;
}

.icon-btn:hover {
  filter: brightness(1.25);
}

.icon-btn.delete {
  color: var(--danger);
}

.empty-state {
  text-align: center;
  color: var(--muted);
  padding: 3rem 0;
}

.hidden {
  display: none;
}

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

@media (max-width: 480px) {
  .search {
    width: 100%;
  }
}