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

:root {
  --bg: #0b1220;
  --card: rgba(255, 255, 255, 0.06);
  --card-border: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --muted-2: rgba(255, 255, 255, 0.5);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);

  --radius: 16px;
  --radius-sm: 12px;

  --gap: 12px;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(
      900px circle at 10% 10%,
      #1b2a55 0%,
      transparent 55%
    ),
    radial-gradient(900px circle at 90% 20%, #3a1e66 0%, transparent 55%),
    var(--bg);
}

/* ===== Layout ===== */
.wrapper {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(720px, 100%);
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  backdrop-filter: blur(10px);
}

h1 {
  margin: 0 0 14px;
  font-size: 1.4rem;
  letter-spacing: 0.2px;
}

/* ===== Filters ===== */
.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 10px 0 14px;
}

.filters .js-filter {
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.06s ease, background 0.2s ease, border-color 0.2s ease;
}

.filters .js-filter:hover {
  background: rgba(255, 255, 255, 0.08);
}

.filters .js-filter:active {
  transform: translateY(1px);
}

.filters .js-filter.is-active {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.26);
}

/* ===== Top input row ===== */
.top {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  margin-bottom: 14px;
}

.top input[type="text"],
.top input[type="date"] {
  width: 100%;
  border: 1px solid var(--card-border);
  background: rgba(0, 0, 0, 0.18);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  outline: none;
}

.top input::placeholder {
  color: var(--muted-2);
}

.top input:focus {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(0, 0, 0, 0.25);
}

.top .js-add-button {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.06s ease, background 0.2s ease;
  white-space: nowrap;
}

.top .js-add-button:hover {
  background: rgba(255, 255, 255, 0.18);
}

.top .js-add-button:active {
  transform: translateY(1px);
}

/* ===== Empty state ===== */
.js-empty {
  margin: 12px 4px 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ===== Todo list ===== */
.js-todo-list {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
  display: grid;
  gap: 10px;
}

/* Each item row */
.js-todo-list li {
  display: grid;
  grid-template-columns: 18px 1fr auto auto;
  align-items: center;
  gap: 10px;
  padding: 12px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
  background: rgba(0, 0, 0, 0.18);
}

/* Checkbox */
.js-todo-list input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin: 0;
  cursor: pointer;
}

.js-todo-list input[type="checkbox"]:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Todo text */
.js-todo-list span {
  color: var(--text);
  line-height: 1.35;
  word-break: break-word;
}

.completed {
  text-decoration: line-through;
  opacity: 0.65;
}

/* ===== Edit mode layout ===== */
/* When editing, li contains: checkbox + input + save + cancel (no edit/delete) */
.js-edit-input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  outline: none;
}

.js-edit-input:focus {
  border-color: rgba(255, 255, 255, 0.28);
}

/* Buttons */
.js-todo-list button {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.06s ease, background 0.2s ease;
}

.js-todo-list button:hover {
  background: rgba(255, 255, 255, 0.14);
}

.js-todo-list button:active {
  transform: translateY(1px);
}

/* Make Save slightly more prominent */
.js-save {
  background: rgba(255, 255, 255, 0.14);
}

/* Cancel slightly muted */
.js-cancel {
  color: var(--muted);
}

/* ===== Responsive ===== */
@media (max-width: 560px) {
  .top {
    grid-template-columns: 1fr;
  }

  .js-todo-list li {
    grid-template-columns: 18px 1fr;
    grid-auto-rows: auto;
  }

  /* push buttons to new line on small screens */
  .js-todo-list button {
    justify-self: start;
  }
}