:root {
  --bg: #040915;
  --bg-2: #0c1c32;
  --panel: rgba(8, 22, 45, 0.72);
  --panel-border: rgba(113, 196, 255, 0.32);
  --text: #e7f4ff;
  --muted: #95b8d3;
  --accent: #3cf2ff;
  --accent-2: #9af57a;
  --shadow: 0 14px 34px rgba(0, 0, 0, 0.38);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background:
    radial-gradient(1300px 800px at 15% -10%, rgba(60, 242, 255, 0.18), transparent 55%),
    radial-gradient(900px 700px at 90% 5%, rgba(154, 245, 122, 0.14), transparent 50%),
    linear-gradient(150deg, var(--bg), var(--bg-2));
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(117, 201, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(117, 201, 255, 0.08) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at 50% 30%, rgba(0, 0, 0, 0.92), transparent 78%);
  opacity: 0.6;
}

.container {
  width: min(900px, 92vw);
  margin: 0 auto;
  padding: 2.2rem 0 3rem;
  position: relative;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.2rem;
  margin-bottom: 1rem;
}

.hero {
  position: relative;
  background:
    radial-gradient(650px 220px at 5% 0%, rgba(60, 242, 255, 0.13), transparent 62%),
    radial-gradient(750px 260px at 100% 100%, rgba(154, 245, 122, 0.11), transparent 60%),
    rgba(10, 27, 51, 0.76);
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  color: var(--accent);
}

h1,
h2 {
  font-family: "Audiowide", sans-serif;
  margin: 0 0 0.5rem;
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.back {
  position: absolute;
  top: 1rem;
  right: 1rem;
  text-decoration: none;
  font-weight: 700;
  color: #c2ebff;
}

.back:hover { color: var(--accent-2); }

.toolbar {
  margin-top: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

#ctUnlockBtn,
#ctCitationAddBtn,
#ctThanksAddBtn,
.item-delete {
  border: 1px solid rgba(117, 225, 255, 0.62);
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(31, 72, 116, 0.95), rgba(18, 48, 80, 0.92));
  color: var(--text);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  cursor: pointer;
}

#ctUnlockBtn,
.item-delete {
  padding: 0.42rem 0.72rem;
}

#ctCitationAddBtn,
#ctThanksAddBtn {
  width: 44px;
  font-size: 1.25rem;
  font-weight: 700;
}

#ctUnlockBtn:hover,
#ctCitationAddBtn:hover,
#ctThanksAddBtn:hover,
.item-delete:hover {
  border-color: rgba(154, 245, 122, 0.74);
  box-shadow: 0 0 16px rgba(60, 242, 255, 0.24);
}

#ctStatus {
  font-size: 0.9rem;
  color: #d9ecff;
  font-weight: 600;
}

.sub {
  margin-bottom: 0.55rem;
  color: #bad5ec;
}

.add-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
}

#ctCitationInput,
#ctThanksInput {
  width: 100%;
  border: 1px solid rgba(144, 214, 255, 0.52);
  border-radius: 10px;
  padding: 0.56rem 0.66rem;
  background: rgba(13, 36, 64, 0.9);
  color: var(--text);
  font-size: 1rem;
}

#ctCitationInput:disabled,
#ctThanksInput:disabled,
#ctCitationAddBtn:disabled,
#ctThanksAddBtn:disabled {
  opacity: 0.62;
}

.item-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  border: 1px solid rgba(125, 208, 255, 0.46);
  border-radius: 12px;
  background: rgba(17, 41, 69, 0.8);
  padding: 0.44rem 0.55rem;
}

.item input[type="checkbox"] { transform: scale(1.12); }

.item-text {
  flex: 1;
  color: #dff1ff;
}

.item.done .item-text {
  text-decoration: line-through;
  opacity: 0.7;
}

.item-delete {
  font-size: 0.82rem;
  padding: 0.25rem 0.45rem;
}

.item-delete[hidden] { display: none; }

.empty {
  list-style: none;
  border: 1px dashed rgba(130, 203, 255, 0.45);
  border-radius: 12px;
  padding: 0.55rem 0.7rem;
  color: #b5d5ef;
  font-size: 0.92rem;
}

@media (max-width: 620px) {
  .container { width: 94vw; }
  .back {
    position: static;
    display: inline-block;
    margin-bottom: 0.65rem;
  }
}