:root {
  --bg: #12221d;
  --panel: rgba(255, 255, 255, 0.07);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --paper: #fffaf1;
  --muted: rgba(255, 250, 241, 0.64);
  --mint: #44b98b;
  --gold: #e8a83a;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--paper);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px) 0 0 / 18px 18px,
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px) 0 0 / 18px 18px,
    radial-gradient(circle at 18% 18%, rgba(68, 185, 139, 0.16), transparent 34%),
    var(--bg);
  font-family: Arial, Helvetica, sans-serif;
}

.toast-notice {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 20;
  max-width: min(320px, calc(100vw - 36px));
  padding: 12px 14px;
  border: 1px solid rgba(232, 168, 58, 0.68);
  border-radius: 8px;
  color: #fffaf1;
  background: rgba(36, 23, 10, 0.92);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  font-size: 13px;
  font-weight: 900;
}

button,
input {
  font: inherit;
}

.start-screen {
  width: min(980px, calc(100vw - 28px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  place-items: center;
  padding: 28px 0;
}

.start-panel {
  width: min(720px, 100%);
  display: grid;
  gap: 22px;
  padding: clamp(22px, 5vw, 42px);
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035)),
    var(--panel);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(3px);
}

.brand-block {
  display: grid;
  gap: 8px;
}

.brand-kicker {
  margin: 0;
  color: var(--mint);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(42px, 8vw, 72px);
  line-height: 0.92;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 span {
  color: var(--gold);
}

.start-form {
  display: grid;
  gap: 14px;
}

.lobby-error {
  padding: 12px 14px;
  border: 1px solid rgba(228, 92, 109, 0.55);
  border-radius: 6px;
  color: #fffaf1;
  background: rgba(228, 92, 109, 0.2);
  font-size: 13px;
  font-weight: 900;
}

.field-label,
.section-heading {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.name-input {
  width: 100%;
  height: 54px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  outline: none;
  color: var(--paper);
  background: rgba(0, 0, 0, 0.26);
  font-size: 18px;
  font-weight: 800;
}

.name-input:focus {
  border-color: rgba(68, 185, 139, 0.85);
  box-shadow: 0 0 0 3px rgba(68, 185, 139, 0.18);
}

.name-input::placeholder {
  color: rgba(255, 250, 241, 0.36);
}

.avatar-picker {
  display: grid;
  grid-template-columns: minmax(160px, 220px);
  gap: 10px;
}

.avatar-option {
  min-height: 116px;
  display: grid;
  place-items: center;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  background: var(--panel-strong);
  cursor: pointer;
}

.avatar-option img {
  width: 78px;
  height: 78px;
  display: block;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.16);
}

.avatar-option.is-selected {
  border-color: rgba(232, 168, 58, 0.95);
  box-shadow: inset 0 0 0 1px rgba(232, 168, 58, 0.35), 0 12px 26px rgba(0, 0, 0, 0.18);
}

.avatar-option.is-selected img {
  border-color: var(--gold);
}

.upload-avatar {
  position: relative;
  color: var(--paper);
  font-size: 11px;
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
  text-transform: uppercase;
}

.upload-avatar input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.upload-avatar img {
  display: none;
}

.upload-avatar.has-image img {
  display: block;
}

.upload-avatar.has-image .upload-placeholder {
  display: none;
}

.upload-placeholder {
  width: 78px;
  height: 78px;
  display: grid;
  place-items: center;
  padding: 8px;
  border: 2px dashed rgba(255, 250, 241, 0.38);
  border-radius: 50%;
}

.color-picker {
  display: grid;
  grid-template-columns: repeat(6, 48px);
  gap: 10px;
}

.color-option {
  width: 48px;
  height: 48px;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: transparent;
  cursor: pointer;
}

.color-option::before {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 4px;
  background: var(--swatch);
}

.color-option.is-selected {
  border-color: rgba(255, 250, 241, 0.9);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--swatch) 34%, transparent);
}

.start-actions {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 10px;
  margin-top: 8px;
}

.lobby-button {
  min-height: 54px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  color: var(--paper);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
  cursor: pointer;
}

.create-button {
  background: rgba(255, 255, 255, 0.1);
}

.join-button {
  background: linear-gradient(135deg, var(--mint), #2f9f79);
  color: #07110f;
}

.lobby-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.2);
}

@media (max-width: 560px) {
  .start-screen {
    width: min(100% - 20px, 420px);
    padding: 18px 0;
  }

  .start-panel {
    padding: 20px;
  }

  .avatar-picker {
    grid-template-columns: 1fr;
  }

  .avatar-option {
    min-height: 104px;
  }

  .color-picker {
    grid-template-columns: repeat(5, 1fr);
  }

  .color-option {
    width: 100%;
  }

  .start-actions {
    grid-template-columns: 1fr;
  }
}