:root {
  --bg: #0f1226;
  --panel: #171a36;
  --panel-2: #1f2247;
  --text: #f3f6ff;
  --muted: #b9c2ff;
  --accent: #7c9bff;
  --accent-2: #55d6be;
  --danger: #ff6b6b;
  --warning: #ffd166;
  --success: #50fa7b;
  --code: #0a0d24;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji",
    "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(
      1200px 600px at -10% -10%,
      #1b1f46 0%,
      transparent 60%
    ),
    radial-gradient(1200px 600px at 110% 0%, #1a264e 0%, transparent 60%),
    var(--bg);
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

header {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 12px;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: saturate(140%) blur(8px);
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.logo {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow);
}

.brand h1 {
  font-size: 18px;
  margin: 0;
}

.pill {
  background: var(--panel);
  padding: 10px 14px;
  border-radius: 999px;
  display: flex;
  gap: 10px;
  align-items: center;
  box-shadow: var(--shadow);
  border: 1px solid #2a2f64;
}

.pill b {
  color: var(--accent-2);
}

.pill small {
  opacity: 0.8;
}

.main {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}

@media (max-width: 900px) {
  .main {
    grid-template-columns: 1fr;
  }
}

.card {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid #2a2f64;
  border-radius: 20px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card .hd {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid #2a2f64;
}

.card .hd h2 {
  font-size: 16px;
  margin: 0;
  color: var(--muted);
}

.codebox {
  padding: 16px;
  background: linear-gradient(180deg, #0b0f2a, #0b102f);
  border-radius: 12px;
  overflow-x: auto;
}

pre {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 15px;
  line-height: 1.5;
}

code {
  color: #e6eafe;
}

.blank {
  display: inline-block;
  min-width: 72px;
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px dashed #5160c9;
  color: #c6ceff;
  background: #0c1440;
  font-weight: 500;
}

.options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 16px;
}

.btn {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid #2a2f64;
  background: #12163b;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.06s ease, box-shadow 0.2s;
  box-shadow: var(--shadow);
  text-align: left;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn.primary {
  background: linear-gradient(135deg, #2a3180, #283aa4);
  border-color: #3b49b8;
}

.btn.success {
  background: linear-gradient(135deg, #1f7a55, #108a78);
  font-size: large;
}

.btn.warn {
  background: linear-gradient(135deg, #755c22, #8a6f12);
}

.toolbar {
  display: flex;
  gap: 10px;
  padding: 0 16px 16px;
}

.console {
  padding: 14px 16px;
  background: var(--code);
  border-top: 1px solid #2a2f64;
  min-height: 84px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas;
  font-size: 14px;
  border-radius: 0 0 20px 20px;
}

.console .tag {
  display: inline-block;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #1a204f;
  color: #b4bfff;
  border: 1px solid #2a2f64;
  margin-bottom: 8px;
}

.bar {
  height: 10px;
  background: #0d1233;
  border-top: 1px solid #2a2f64;
  border-radius: 5px;
  overflow: hidden;
  margin: 0 16px;
}

.bar .fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.4s ease;
}

.side {
  display: grid;
  gap: 18px;
}

.list {
  padding: 10px 14px;
}

.row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px dashed #2a2f64;
}

.row:last-child {
  border-bottom: none;
}

.tag {
  font-size: 12px;
  opacity: 0.9;
}

.hint {
  background: #0d153f;
  border-left: 3px solid var(--accent-2);
  padding: 12px 14px;
  margin: 10px 16px;
  border-radius: 12px;
}

.glitch {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 20;
  background: repeating-linear-gradient(
    0deg,
    rgba(255, 0, 70, 0.12),
    rgba(255, 0, 70, 0.12) 2px,
    transparent 2px,
    transparent 4px
  );
  animation: none;
}

.glitch.on {
  opacity: 0.8;
  animation: shake 0.35s ease 0s 1;
}

@keyframes shake {
  0% {
    transform: translate(0, 0);
  }
  20% {
    transform: translate(-10px, 6px);
  }
  40% {
    transform: translate(9px, -4px);
  }
  60% {
    transform: translate(-6px, 8px);
  }
  80% {
    transform: translate(7px, -5px);
  }
  100% {
    transform: translate(0, 0);
  }
}

.footer {
  opacity: 0.7;
  font-size: 12px;
  text-align: center;
  padding: 20px;
}

.hearts {
  display: flex;
  gap: 6px;
  align-items: center;
}

.heart {
  width: 14px;
  height: 14px;
  background: var(--danger);
  clip-path: polygon(50% 83%, 100% 35%, 82% 12%, 50% 29%, 18% 12%, 0 35%);
  filter: drop-shadow(0 0 6px rgba(255, 80, 110, 0.35));
}

.heart.off {
  opacity: 0.25;
  filter: none;
}

.overlay {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  background: rgba(7, 10, 28, 0.7);
  backdrop-filter: blur(4px);
  z-index: 30;
}

.overlay .modal {
  max-width: 540px;
  background: var(--panel);
  border: 1px solid #2a2f64;
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 50px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 10px;
}

.modal h3 {
  margin: 0 0 10px;
  font-size: xx-large;
  text-align: center;
}

.modal p {
  margin: 6px 0 16px;
  font-size: large;
  color: var(--muted);
  text-align: center;
}

.kbd {
  font-family: ui-monospace, Menlo, Monaco, Consolas;
  font-size: 12px;
  background: #0f143a;
  border: 1px solid #2a2f64;
  padding: 2px 6px;
  border-radius: 6px;
}

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