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

:root {
  --bg:      #0d1117;
  --surface: #161b22;
  --card:    #1c2128;
  --border:  #30363d;
  --accent:  #f7df1e;
  --green:   #3fb950;
  --red:     #f85149;
  --text:    #e6edf3;
  --muted:   #8b949e;
  --radius:  12px;
}

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 48px 24px 80px;
}

.wrapper {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── HEADER ── */
.header .tag {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}
.header h1 { font-size: clamp(1.6rem, 4vw, 2rem); font-weight: 700; margin-bottom: 6px; }
.header p  { font-size: 0.82rem; color: var(--muted); }

/* ── FORM CARD ── */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.input-row { display: flex; gap: 10px; }

input[type="text"] {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 0.9rem;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(247,223,30,0.07); }
input.error { border-color: var(--red) !important; box-shadow: 0 0 0 3px rgba(248,81,73,0.08); }

.err-msg {
  font-size: 0.72rem;
  color: var(--red);
  min-height: 16px;
  display: block;
  margin-top: 6px;
}

/* ── BUTTONS ── */
.btn-add {
  padding: 10px 18px;
  border-radius: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background: var(--accent);
  color: #111;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-add:hover { filter: brightness(1.1); transform: translateY(-1px); }

.btn-clear {
  padding: 5px 12px;
  border-radius: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid rgba(248,81,73,0.3);
  background: transparent;
  color: var(--red);
  transition: all 0.2s;
}
.btn-clear:hover { background: rgba(248,81,73,0.08); }

/* ── TOOLBAR ── */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.stats { display: flex; gap: 8px; }

.pill {
  font-family: 'Space Mono', monospace;
  font-size: 0.65rem;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
  color: var(--muted);
}
.pill.active { border-color: var(--green); color: var(--green); background: rgba(63,185,80,0.07); }

.filters { display: flex; gap: 4px; }

.filter {
  padding: 4px 12px;
  border-radius: 20px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  transition: all 0.2s;
}
.filter.active {
  background: rgba(247,223,30,0.1);
  color: var(--accent);
  border-color: rgba(247,223,30,0.35);
}

/* ── LIST ── */
#list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ── LIST ITEM ── */
li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: border-color 0.2s, opacity 0.2s, transform 0.2s;
  animation: slideIn 0.22s ease both;
}

li:hover { border-color: rgba(247,223,30,0.25); transform: translateX(3px); }

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

/* Checkbox circle */
.check {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  transition: all 0.2s;
  pointer-events: none;
}

li:hover .check { border-color: var(--green); }

.todo-text {
  flex: 1;
  font-size: 0.9rem;
  color: var(--text);
  transition: color 0.2s;
  pointer-events: none;
}

.delete-btn {
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font-family: 'Outfit', sans-serif;
  transition: all 0.2s;
  opacity: 0;
}
li:hover .delete-btn { opacity: 1; }
.delete-btn:hover { color: var(--red); border-color: rgba(248,81,73,0.3); background: rgba(248,81,73,0.07); }

/* Done state */
li.done { opacity: 0.5; }
li.done .check { background: var(--green); border-color: var(--green); color: #111; }
li.done .todo-text { text-decoration: line-through; color: var(--muted); }

/* ── EMPTY STATE ── */
.empty {
  text-align: center;
  padding: 40px 0;
  color: var(--muted);
  font-size: 0.85rem;
  display: none;
  flex-direction: column;
  gap: 8px;
}
.empty.show { display: flex; }
.empty span { font-size: 2rem; }

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 28px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--green);
  color: #111;
  font-family: 'Space Mono', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 9px 20px;
  border-radius: 20px;
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
  z-index: 999;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }