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

:root {
  --color-background-primary: #ffffff;
  --color-background-secondary: #f5f5f3;
  --color-text-primary: #1a1a18;
  --color-text-secondary: #5f5e5a;
  --color-text-tertiary: #b4b2a9;
  --color-border-tertiary: rgba(0, 0, 0, 0.12);
  --color-border-secondary: rgba(0, 0, 0, 0.22);
  --color-border-primary: rgba(0, 0, 0, 0.35);
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --font-sans: system-ui, -apple-system, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background-primary: #1e1e1c;
    --color-background-secondary: #2a2a28;
    --color-text-primary: #f0ede8;
    --color-text-secondary: #a8a59e;
    --color-text-tertiary: #5f5e5a;
    --color-border-tertiary: rgba(255, 255, 255, 0.1);
    --color-border-secondary: rgba(255, 255, 255, 0.18);
    --color-border-primary: rgba(255, 255, 255, 0.28);
  }
}

/* Utility */

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

/* Page layout */

body {
  margin: 0;
  padding: 2rem 1rem;
  font-family: var(--font-sans);
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
}

/* Card */

article[data-testid="test-todo-card"] {
  background: var(--color-background-primary);
  border: 0.5px solid var(--color-border-secondary);
  border-radius: var(--border-radius-lg);
  padding: 1.25rem 1.5rem;
  width: 100%;
  max-width: 480px;
  transition: border-color 0.2s;
}

article[data-testid="test-todo-card"]:focus-within {
  border-color: var(--color-border-primary);
}

/* Card top row */

.card-top {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 1rem;
}

.checkbox-wrap {
  flex-shrink: 0;
  margin-top: 3px;
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: #534ab7;
}

input[type="checkbox"]:focus {
  outline: 2px solid #534ab7;
  outline-offset: 2px;
}

.title-group {
  flex: 1;
  min-width: 0;
}

/* Title */

h2[data-testid="test-todo-title"] {
  font-size: 17px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin: 0 0 6px;
  line-height: 1.4;
  transition: text-decoration 0.2s;
}

h2.done {
  text-decoration: line-through;
  color: var(--color-text-tertiary);
}

/* Badges */

.badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

span[data-testid="test-todo-priority"],
span[data-testid="test-todo-status"] {
  font-size: 12px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 999px;
  border: 0.5px solid;
}

.priority-high   { background: #faece7; color: #712b13; border-color: #f0997b; }
.priority-medium { background: #faeeda; color: #633806; border-color: #ef9f27; }
.priority-low    { background: #eaf3de; color: #3b6d11; border-color: #97c459; }

.status-pending     { background: #e6f1fb; color: #0c447c; border-color: #85b7eb; }
.status-in-progress { background: #eeedfe; color: #3c3489; border-color: #afa9ec; }
.status-done        { background: #eaf3de; color: #3b6d11; border-color: #97c459; }

/* Description */

p[data-testid="test-todo-description"] {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0 0 1rem;
  line-height: 1.6;
}

/* Meta row (due date + time remaining) */

.meta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  align-items: center;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.meta-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  opacity: 0.55;
  color: var(--color-text-secondary);
}

time {
  font-size: 13px;
  color: var(--color-text-secondary);
}

[data-testid="test-todo-time-remaining"] {
  font-size: 13px;
  font-weight: 500;
}

.overdue { color: #a32d2d; }
.soon    { color: #854f0b; }
.fine    { color: #3b6d11; }
.neutral { color: var(--color-text-secondary); }

/* Divider */

.divider {
  height: 0.5px;
  background: var(--color-border-tertiary);
  margin: 0.75rem 0;
}

/* Tags */

ul[data-testid="test-todo-tags"] {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

li[data-testid^="test-todo-tag-"] {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--color-background-secondary);
  border: 0.5px solid var(--color-border-tertiary);
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* Actions*/

.card-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

button {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  border: 0.5px solid var(--color-border-secondary);
  background: transparent;
  color: var(--color-text-primary);
  transition: background 0.15s, border-color 0.15s;
}

button:hover {
  background: var(--color-background-secondary);
  border-color: var(--color-border-primary);
}

button:focus {
  outline: 2px solid #534ab7;
  outline-offset: 2px;
}

button:active {
  transform: scale(0.98);
}

button[data-testid="test-todo-delete-button"] {
  color: #a32d2d;
  border-color: #f0997b;
}

button[data-testid="test-todo-delete-button"]:hover {
  background: #faece7;
}

/* Responsive*/

@media (max-width: 480px) {
  body {
    padding: 1rem 0.75rem;
  }

  article[data-testid="test-todo-card"] {
    padding: 1rem 1.125rem;
  }

  .meta {
    flex-direction: column;
    gap: 0.5rem;
  }

  .card-actions {
    justify-content: stretch;
  }

  .card-actions button {
    flex: 1;
    text-align: center;
  }
}