:root {
  --bg-1: #f6f9ff;
  --bg-2: #dcecff;
  --bg-3: #ffe6eb;
  --panel: #ffffffcc;
  --ink: #9ac1ea;
  --accent: #73b9ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  min-height: 100dvh;
  background: linear-gradient(-45deg, var(--bg-1), var(--bg-2), var(--bg-3), #fff7db);
  background-size: 400% 400%;
  animation: gradientBG 15s ease infinite;
  color: var(--ink);
  font-family: "Avenir Next", "Trebuchet MS", "Segoe UI", sans-serif;
}

@keyframes gradientBG {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

body {
  display: grid;
  place-items: center;
  width: 100vw;
  width: 100dvw;
  min-width: 100vw;
  min-width: 100dvw;
  padding: 0;
  overflow: hidden;
}

#app {
  width: 100vw;
  width: 100dvw;
  height: 100vh;
  height: 100dvh;
}

#start-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  overflow: hidden;
}

#start-overlay.hidden {
  display: none;
}

#opening-video {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

#mode-select-hint {
  position: absolute;
  left: 50%;
  top: 7.5%;
  bottom: auto;
  transform: translateX(-50%);
  z-index: 2;
  width: min(760px, 86vw);
  padding: 11px 16px;
  border: 1px solid rgba(255, 244, 225, 0.65);
  border-radius: 14px;
  background: rgba(65, 41, 24, 0.52);
  color: #fff7e9;
  text-align: center;
  font: 600 15px/1.35 "Avenir Next", "Trebuchet MS", sans-serif;
  letter-spacing: 0.2px;
  box-shadow: 0 10px 24px rgba(26, 15, 8, 0.28);
}

#cosmetic-panel {
  position: absolute;
  left: 50%;
  top: 17%;
  bottom: auto;
  transform: translateX(-50%);
  z-index: 2;
  width: min(760px, 88vw);
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 244, 225, 0.65);
  border-radius: 14px;
  background: rgba(65, 41, 24, 0.52);
  color: #fff7e9;
  box-shadow: 0 10px 24px rgba(26, 15, 8, 0.28);
}

.cosmetic-title {
  grid-column: 1 / -1;
  font: 700 14px/1.2 "Avenir Next", "Trebuchet MS", sans-serif;
  letter-spacing: 0.2px;
  margin-bottom: 2px;
}

#cosmetic-panel label {
  display: grid;
  gap: 4px;
  font: 600 12px/1.2 "Avenir Next", "Trebuchet MS", sans-serif;
}

#cosmetic-panel select {
  width: 100%;
  border: 1px solid rgba(255, 244, 225, 0.62);
  border-radius: 9px;
  background: rgba(255, 248, 236, 0.92);
  color: #6f4b2f;
  font: 600 13px/1.2 "Avenir Next", "Trebuchet MS", sans-serif;
  padding: 7px 8px;
}

@media (max-width: 820px) {
  #cosmetic-panel {
    grid-template-columns: repeat(2, minmax(120px, 1fr));
    top: 16.5%;
  }
  #mode-select-hint {
    top: 7%;
    bottom: auto;
  }
}

@media (max-height: 760px) {
  #mode-select-hint {
    top: 4.5%;
  }
  #cosmetic-panel {
    top: 13%;
  }
}

#start-actions {
  position: absolute;
  left: 50%;
  bottom: 8%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  gap: 14px;
  align-items: center;
}

#start-button,
#tutorial-button {
  padding: 14px 42px;
  border: 2px solid rgba(255, 244, 225, 0.88);
  border-radius: 999px;
  color: #fff7e9;
  font: 700 22px "Avenir Next", "Trebuchet MS", sans-serif;
  letter-spacing: 0.7px;
  cursor: pointer;
  box-shadow:
    0 14px 30px rgba(66, 42, 22, 0.35),
    inset 0 1px 0 rgba(255, 244, 225, 0.35);
  transition:
    transform 0.16s ease,
    filter 0.16s ease,
    box-shadow 0.16s ease;
}

#start-button {
  background: linear-gradient(145deg, #c88f5f 0%, #b77845 55%, #8e5c37 100%);
}

#tutorial-button {
  background: linear-gradient(145deg, #6ea7d5 0%, #4f84b3 55%, #345e88 100%);
}

#start-button:hover,
#tutorial-button:hover {
  filter: brightness(1.06);
  transform: translateY(-2px) scale(1.02);
}

#start-button:hover {
  filter: brightness(1.06);
}

#start-button:active,
#tutorial-button:active {
  transform: translateY(0) scale(0.99);
  box-shadow:
    0 8px 16px rgba(66, 42, 22, 0.3),
    inset 0 1px 0 rgba(255, 244, 225, 0.32);
}

@media (max-width: 680px) {
  #start-actions {
    flex-direction: column;
    width: min(320px, 78vw);
  }

  #start-button,
  #tutorial-button {
    width: 100%;
  }
}

canvas {
  display: block;
  width: 100vw !important;
  width: 100dvw !important;
  height: 100vh !important;
  height: 100dvh !important;
  border-radius: 0;
  box-shadow: none;
  position: relative;
  z-index: 1;
}