:root {
  color-scheme: light dark;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: #f3f4f6;
  color: #111827;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
}

button,
input,
textarea {
  font: inherit;
}

.hidden {
  display: none !important;
}

.page {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 64px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.header h1 {
  margin: 0;
  font-size: 32px;
}

.header p {
  margin: 6px 0 0;
  color: #6b7280;
}

.search-box {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.search-box input {
  flex: 1;
  height: 48px;
  border: 1px solid #d1d5db;
  border-radius: 14px;
  padding: 0 16px;
  background: #ffffff;
  color: #111827;
  outline: none;
}

.search-box input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.btn {
  height: 42px;
  padding: 0 16px;
  border: 0;
  border-radius: 12px;
  background: #2563eb;
  color: #ffffff;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover {
  background: #1d4ed8;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.btn.secondary {
  background: #e5e7eb;
  color: #111827;
}

.btn.secondary:hover {
  background: #d1d5db;
}

.btn.danger {
  background: #dc2626;
}

.btn.danger:hover {
  background: #b91c1c;
}

.message {
  margin: 16px 0;
  padding: 12px 14px;
  border-radius: 12px;
  background: #ecfdf5;
  color: #047857;
}

.settings {
  margin: 20px 0 32px;
  padding: 20px;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.settings h2 {
  margin: 0 0 12px;
  font-size: 20px;
}

.label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  color: #374151;
}

.label input {
  height: 42px;
  border: 1px solid #d1d5db;
  border-radius: 12px;
  padding: 0 12px;
  outline: none;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.tip {
  color: #6b7280;
  line-height: 1.6;
}

textarea {
  width: 100%;
  min-height: 420px;
  resize: vertical;
  border: 1px solid #d1d5db;
  border-radius: 14px;
  padding: 14px;
  background: #0f172a;
  color: #e5e7eb;
  font-family:
    ui-monospace,
    SFMono-Regular,
    Menlo,
    Monaco,
    Consolas,
    "Liberation Mono",
    monospace;
  font-size: 14px;
  line-height: 1.6;
  outline: none;
}

.content {
  display: grid;
  gap: 28px;
}

.group h2 {
  margin: 0 0 14px;
  font-size: 22px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.card {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 86px;
  padding: 16px;
  border-radius: 18px;
  background: #ffffff;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(15, 23, 42, 0.1);
}

.icon,
.fake-icon {
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  border-radius: 12px;
}

.icon {
  object-fit: contain;
}

.fake-icon {
  display: grid;
  place-items: center;
  background: #dbeafe;
  color: #1d4ed8;
  font-weight: 700;
}

.card-body {
  min-width: 0;
}

.card h3 {
  margin: 0 0 4px;
  font-size: 16px;
}

.card p {
  margin: 0;
  color: #6b7280;
  font-size: 13px;
  line-height: 1.4;
  word-break: break-all;
}

.empty {
  padding: 40px 20px;
  text-align: center;
  color: #6b7280;
  background: #ffffff;
  border-radius: 18px;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .page {
    width: min(100% - 24px, 1180px);
    padding-top: 20px;
  }

  .header h1 {
    font-size: 26px;
  }

  .search-box {
    display: grid;
    grid-template-columns: 1fr;
  }

  .search-box input {
    height: 46px;
  }

  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .card {
    display: grid;
    justify-items: center;
    text-align: center;
    min-height: 120px;
  }

  .card p {
    display: none;
  }

  textarea {
    min-height: 360px;
    font-size: 13px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    background: #020617;
    color: #e5e7eb;
  }

  .header p,
  .tip,
  .card p,
  .empty {
    color: #9ca3af;
  }

  .search-box input,
  .settings,
  .card,
  .empty {
    background: #111827;
    color: #e5e7eb;
    border-color: #374151;
  }

  .label {
    color: #d1d5db;
  }

  .label input {
    background: #020617;
    color: #e5e7eb;
    border-color: #374151;
  }

  .btn.secondary {
    background: #374151;
    color: #e5e7eb;
  }

  .btn.secondary:hover {
    background: #4b5563;
  }

  .message {
    background: #064e3b;
    color: #d1fae5;
  }
}