:root {
  --bg-deep: #090c1a;
  --bg-mid: #111632;
  --card: rgba(13, 19, 46, 0.74);
  --card-border: rgba(126, 214, 255, 0.35);
  --text-main: #ecf2ff;
  --text-soft: #9fb4ff;
  --accent-a: #89d6ff;
  --accent-b: #a35cf7;
  --danger: #ff6a7d;
  --shadow: 0 26px 60px rgba(4, 10, 31, 0.55);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at 20% 15%, #1d2451 0%, transparent 42%),
    radial-gradient(circle at 80% 85%, #2f1348 0%, transparent 35%),
    linear-gradient(145deg, var(--bg-deep), var(--bg-mid));
  color: var(--text-main);
  font-family: 'Trebuchet MS', 'Gill Sans', 'Segoe UI', 'Verdana', sans-serif;
  letter-spacing: 0.02em;
}

body {
  padding: 2rem;
}

.aurora {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 10%, rgba(135, 206, 255, 0.32), transparent 35%),
    radial-gradient(circle at 80% 90%, rgba(171, 79, 255, 0.26), transparent 35%),
    repeating-radial-gradient(circle at 40% 50%, rgba(255, 255, 255, 0.06) 0 2px, transparent 2px 80px);
  filter: blur(10px);
  animation: auroraPulse 14s linear infinite alternate;
  opacity: 0.75;
}

@keyframes auroraPulse {
  0% {
    transform: translateX(-2%) translateY(0);
  }
  50% {
    transform: translateX(2%) translateY(-1%);
  }
  100% {
    transform: translateX(-1.5%) translateY(1.5%);
  }
}

.shell {
  position: relative;
  z-index: 1;
  margin: 0 auto;
  max-width: 1200px;
  display: grid;
  gap: 1rem;
}

.title-card {
  padding: 1rem 1.25rem;
  border-radius: 16px;
  background: linear-gradient(140deg, rgba(14, 21, 51, 0.82), rgba(20, 27, 59, 0.5));
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.kicker {
  margin: 0;
  text-transform: uppercase;
  color: var(--accent-a);
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.7rem;
}

h1 {
  margin: 0.2rem 0 0.5rem;
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
}

.subtitle {
  margin: 0;
  color: var(--text-soft);
}

.layout {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.2fr 1fr 1fr 0.95fr;
  grid-template-areas:
    "primary primary primary primary"
    "generators upgrades achievements achievements";
}

.panel {
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  padding: 1rem;
  min-height: 130px;
  backdrop-filter: blur(5px);
}

.primary {
  grid-area: primary;
  display: grid;
  gap: 1rem;
}

.generators {
  grid-area: generators;
}

.upgrades {
  grid-area: upgrades;
}

.achievement-list {
  grid-area: achievements;
}

.stats-grid {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.stat {
  background: linear-gradient(150deg, rgba(15, 20, 44, 0.9), rgba(27, 34, 71, 0.45));
  border: 1px solid rgba(160, 188, 255, 0.18);
  padding: 0.75rem;
  border-radius: 12px;
}

.stat p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-soft);
}

.stat h2 {
  margin: 0.3rem 0 0;
  font-size: 1.2rem;
}

.click-zone {
  display: grid;
  justify-items: center;
  text-align: center;
}

.pulse-button {
  border: none;
  color: #09122f;
  background: linear-gradient(135deg, #8be3ff, #c4a3ff);
  border-radius: 999px;
  min-width: 210px;
  min-height: 210px;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-family: inherit;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.45),
    0 22px 55px rgba(136, 184, 255, 0.34),
    inset 0 -10px 20px rgba(8, 12, 26, 0.28);
  transition: transform 0.15s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.pulse-button:hover {
  transform: scale(1.01);
  filter: saturate(1.2);
}

.pulse-button:active {
  transform: scale(0.96);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.75),
    inset 0 8px 18px rgba(6, 13, 32, 0.42);
}

.hint,
.achievement-title {
  margin: 0.25rem 0 0;
  color: var(--text-soft);
  font-size: 0.85rem;
}

#pulseValue {
  font-size: 1.05rem;
}

#nextPulse {
  margin: 0.3rem 0 0;
}

#floatLayer {
  position: relative;
  height: 0;
  overflow: visible;
}

.floaty {
  position: absolute;
  left: 50%;
  transform: translate(-50%, 0);
  color: #9ff7c0;
  font-weight: 700;
  text-shadow: 0 0 10px rgba(155, 248, 191, 0.75);
  pointer-events: none;
  animation: floaty 1s ease-out forwards;
}

@keyframes floaty {
  0% {
    opacity: 1;
    transform: translate(-50%, 0) translateY(0) scale(0.9);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -60px) scale(1.05);
  }
}

.list {
  display: grid;
  gap: 0.8rem;
  max-height: 520px;
  overflow: auto;
}

.item {
  border: 1px solid rgba(154, 171, 255, 0.2);
  border-radius: 10px;
  padding: 0.75rem;
  background: linear-gradient(140deg, rgba(15, 21, 50, 0.78), rgba(13, 23, 55, 0.45));
}

.item button {
  margin-top: 0.5rem;
  width: 100%;
  color: #f2f8ff;
  font-family: inherit;
  border: 1px solid rgba(154, 202, 255, 0.45);
  background: linear-gradient(140deg, rgba(28, 40, 92, 0.7), rgba(45, 54, 130, 0.7));
  border-radius: 9px;
  padding: 0.45rem 0.75rem;
  cursor: pointer;
}

.item button:hover:not(:disabled) {
  transform: translateY(-2px);
}

.item button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.item h3 {
  margin: 0;
  font-size: 0.95rem;
}

.item p {
  margin: 0.33rem 0 0;
  color: var(--text-soft);
  font-size: 0.82rem;
  line-height: 1.4;
}

.action-row {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.action-button {
  border: 1px solid rgba(162, 197, 255, 0.4);
  padding: 0.6rem 0.9rem;
  border-radius: 9px;
  color: #f4f8ff;
  background: linear-gradient(135deg, rgba(22, 34, 77, 0.85), rgba(35, 42, 102, 0.78));
  font-family: inherit;
  cursor: pointer;
}

.danger {
  border-color: rgba(255, 126, 149, 0.6);
  background: linear-gradient(135deg, rgba(79, 26, 38, 0.85), rgba(106, 27, 37, 0.78));
}

.achievement-list .item {
  border-style: dashed;
}

.achievement-list .item.unlocked {
  background: linear-gradient(140deg, rgba(29, 66, 37, 0.75), rgba(19, 45, 25, 0.45));
}

#toastZone {
  position: fixed;
  right: 1rem;
  top: 1rem;
  display: grid;
  gap: 0.5rem;
  z-index: 5;
}

.toast {
  border: 1px solid rgba(141, 221, 162, 0.4);
  background: rgba(17, 33, 18, 0.9);
  color: #ddffe6;
  border-radius: 10px;
  padding: 0.65rem 0.85rem;
  font-size: 0.85rem;
  animation: toastIn 0.3s ease;
  max-width: 290px;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(15px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "primary primary"
      "generators upgrades"
      "achievements achievements";
  }
}

@media (max-width: 700px) {
  body {
    padding: 1rem;
  }

  .layout {
    grid-template-columns: 1fr;
    grid-template-areas:
      "primary"
      "generators"
      "upgrades"
      "achievements";
  }

  .pulse-button {
    min-width: 180px;
    min-height: 180px;
  }
}