:root {
  color-scheme: light;
  --bg-top: #f6efe4;
  --bg-bottom: #d9e7f5;
  --panel: rgba(255, 250, 245, 0.88);
  --panel-strong: #fff8f0;
  --ink: #1d2430;
  --muted: #6b7280;
  --accent: #d46a4c;
  --accent-strong: #b94d34;
  --border: rgba(29, 36, 48, 0.1);
  --shadow: 0 20px 60px rgba(43, 50, 67, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  background: linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
}

button,
input {
  font: inherit;
}

.app-shell {
  width: min(1080px, calc(100vw - 32px));
  margin: 0 auto;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 24px;
  align-items: center;
  padding: 32px 0;
}

.hero-panel,
.todo-panel {
  background: var(--panel);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 36px;
}

.eyebrow {
  margin: 0 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--accent-strong);
}

h1 {
  margin: 0;
  font-size: clamp(2.3rem, 5vw, 4rem);
  line-height: 0.95;
}

.hero-copy {
  margin: 18px 0 0;
  max-width: 28rem;
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--muted);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.stats article {
  padding: 18px;
  border-radius: 20px;
  background: var(--panel-strong);
}

.stats span {
  display: block;
  font-size: 2rem;
  font-weight: 700;
}

.stats p {
  margin: 8px 0 0;
  color: var(--muted);
}

.todo-panel {
  padding: 24px;
}

.todo-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.todo-form input {
  width: 100%;
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
}

.todo-form button,
.ghost-button,
.filter,
.delete-button {
  border: 0;
  border-radius: 14px;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease, color 140ms ease;
}

.todo-form button {
  padding: 0 18px;
  background: var(--accent);
  color: #fff;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin: 18px 0;
}

.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter,
.ghost-button {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.6);
  color: var(--ink);
}

.filter.active {
  background: var(--ink);
  color: #fff;
}

.todo-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.todo-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--border);
  border-radius: 18px;
}

.todo-row {
  display: flex;
  gap: 12px;
  align-items: center;
  min-width: 0;
  flex: 1;
}

.todo-text {
  overflow-wrap: anywhere;
}

.todo-item.done .todo-text {
  text-decoration: line-through;
  color: var(--muted);
}

.delete-button {
  padding: 10px 12px;
  background: rgba(212, 106, 76, 0.14);
  color: var(--accent-strong);
}

.todo-form button:hover,
.ghost-button:hover,
.filter:hover,
.delete-button:hover {
  transform: translateY(-1px);
}

.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: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .hero-panel,
  .todo-panel {
    padding: 22px;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .todo-form {
    grid-template-columns: 1fr;
  }
}