:root {
  --md-sys-color-primary-light: #6750a4;
  --md-sys-color-on-primary-light: #ffffff;
  --md-sys-color-primary-container-light: #eaddff;
  --md-sys-color-on-primary-container-light: #21005d;
  --md-sys-color-secondary-container-light: #e8def8;
  --md-sys-color-on-secondary-container-light: #1d192b;
  --md-sys-color-tertiary-light: #7d5260;
  --md-sys-color-on-tertiary-light: #ffffff;
  --md-sys-color-background-light: #fffbfe;
  --md-sys-color-on-background-light: #1c1b1f;
  --md-sys-color-surface-light: #fffbfe;
  --md-sys-color-on-surface-light: #1c1b1f;
  --md-sys-color-surface-variant-light: #e7e0ec;
  --md-sys-color-on-surface-variant-light: #49454f;
  --md-sys-color-outline-light: #79747e;
  --md-sys-color-scrim-light: rgba(0, 0, 0, 0.5);
  --md-sys-color-error-light: #b3261e;
  --md-sys-color-error-container-light: #f9dedc;
  --md-sys-color-on-error-container-light: #410e0b;

  --md-sys-color-primary-dark: #d0bcff;
  --md-sys-color-on-primary-dark: #381e72;
  --md-sys-color-primary-container-dark: #4f378b;
  --md-sys-color-on-primary-container-dark: #eaddff;
  --md-sys-color-secondary-container-dark: #4a4458;
  --md-sys-color-on-secondary-container-dark: #e8def8;
  --md-sys-color-tertiary-dark: #efb8c8;
  --md-sys-color-on-tertiary-dark: #492532;
  --md-sys-color-background-dark: #1c1b1f;
  --md-sys-color-on-background-dark: #e6e1e5;
  --md-sys-color-surface-dark: #1c1b1f;
  --md-sys-color-on-surface-dark: #e6e1e5;
  --md-sys-color-surface-variant-dark: #49454f;
  --md-sys-color-on-surface-variant-dark: #cac4d0;
  --md-sys-color-outline-dark: #938f99;
  --md-sys-color-scrim-dark: rgba(0, 0, 0, 0.6);
  --md-sys-color-error-dark: #f2b8b5;
  --md-sys-color-error-container-dark: #8c1d18;
  --md-sys-color-on-error-container-dark: #f9dedc;

  --md-sys-font-family: "googlesans", "Roboto", sans-serif;
  --md-sys-motion-easing-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --md-sys-motion-duration-short: 150ms;
  --md-sys-motion-duration-medium: 300ms;
}

@font-face {
  font-family: "googlesans";
  src: url(fonts/googlesans.ttf);
}

body {
  --md-sys-color-primary: var(--md-sys-color-primary-light);
  --md-sys-color-primary-container: var(--md-sys-color-primary-container-light);
  --md-sys-color-on-primary-container: var(
    --md-sys-color-on-primary-container-light
  );
  --md-sys-color-secondary-container: var(
    --md-sys-color-secondary-container-light
  );
  --md-sys-color-on-secondary-container: var(
    --md-sys-color-on-secondary-container-light
  );
  --md-sys-color-tertiary: var(--md-sys-color-tertiary-light);
  --md-sys-color-background: var(--md-sys-color-background-light);
  --md-sys-color-on-background: var(--md-sys-color-on-background-light);
  --md-sys-color-surface: var(--md-sys-color-surface-light);
  --md-sys-color-on-surface: var(--md-sys-color-on-surface-light);
  --md-sys-color-surface-variant: var(--md-sys-color-surface-variant-light);
  --md-sys-color-on-surface-variant: var(
    --md-sys-color-on-surface-variant-light
  );
  --md-sys-color-outline: var(--md-sys-color-outline-light);
  --md-sys-color-scrim: var(--md-sys-color-scrim-light);
  --md-sys-color-error: var(--md-sys-color-error-light);
  --md-sys-color-error-container: var(--md-sys-color-error-container-light);
  --md-sys-color-on-error-container: var(
    --md-sys-color-on-error-container-light
  );
}

body.dark-theme {
  --md-sys-color-primary: var(--md-sys-color-primary-dark);
  --md-sys-color-primary-container: var(--md-sys-color-primary-container-dark);
  --md-sys-color-on-primary-container: var(
    --md-sys-color-on-primary-container-dark
  );
  --md-sys-color-secondary-container: var(
    --md-sys-color-secondary-container-dark
  );
  --md-sys-color-on-secondary-container: var(
    --md-sys-color-on-secondary-container-dark
  );
  --md-sys-color-tertiary: var(--md-sys-color-tertiary-dark);
  --md-sys-color-background: var(--md-sys-color-background-dark);
  --md-sys-color-on-background: var(--md-sys-color-on-background-dark);
  --md-sys-color-surface: var(--md-sys-color-surface-dark);
  --md-sys-color-on-surface: var(--md-sys-color-on-surface-dark);
  --md-sys-color-surface-variant: var(--md-sys-color-surface-variant-dark);
  --md-sys-color-on-surface-variant: var(
    --md-sys-color-on-surface-variant-dark
  );
  --md-sys-color-outline: var(--md-sys-color-outline-dark);
  --md-sys-color-scrim: var(--md-sys-color-scrim-dark);
  --md-sys-color-error: var(--md-sys-color-error-dark);
  --md-sys-color-error-container: var(--md-sys-color-error-container-dark);
  --md-sys-color-on-error-container: var(
    --md-sys-color-on-error-container-dark
  );
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  width: 100%;
  height: 100vh;
  overflow-x: hidden;
  font-family: var(--md-sys-font-family);
  background-color: var(--md-sys-color-background);
  color: var(--md-sys-color-on-background);
  transition: background-color var(--md-sys-motion-duration-medium);
  display: flex;
}
.navbar {
  width: 300px;
  height: 100vh;
  background-color: var(--md-sys-color-surface);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: fixed;
  top: 0;
  left: 0;
  flex-shrink: 0;
  transition: transform 0.3s ease,
    background-color var(--md-sys-motion-duration-medium);
  z-index: 100;
  overflow-y: auto;
}
.page-wrapper {
  display: flex;
  flex-grow: 1;
  margin-left: 300px;
  height: 100%;
  transition: margin-left 0.3s ease, transform 0.3s ease;
}
.main-content-wrapper {
  flex-grow: 1;
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.navbar-header {
  font-size: 1.5em;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
  padding: 12px 8px 0 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 1.1em;
  padding: 16px 24px;
  border-radius: 50px;
  margin: 0 12px 8px 12px;
  transition: all var(--md-sys-motion-duration-short)
    var(--md-sys-motion-easing-standard);
}
.nav-link.back-button {
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  font-weight: 700;
}
.nav-link:hover {
  background-color: var(--md-sys-color-secondary-container);
}
.main-header {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-bottom: 16px;
  gap: 8px;
}
.content-card {
  background-color: var(--md-sys-color-surface-variant);
  padding: 32px;
  border-radius: 28px;
  flex-grow: 1;
  transition: background-color var(--md-sys-motion-duration-medium);
  overflow-y: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.game-window {
  width: 100%;
  max-width: 800px;
  background-color: var(--md-sys-color-surface);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
}
.game-window h1 {
  font-size: 2.5em;
  margin-bottom: 8px;
  color: var(--md-sys-color-primary);
}
.game-window p {
  font-size: 1.1em;
  margin-bottom: 24px;
  color: var(--md-sys-color-on-surface-variant);
  max-width: 60ch;
  margin-left: auto;
  margin-right: auto;
}
.primary-btn {
  display: inline-block;
  padding: 16px 32px;
  font-size: 1.2em;
  font-weight: 700;
  border-radius: 50px;
  border: none;
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  cursor: pointer;
  text-decoration: none;
}
.status-bar {
  display: flex;
  justify-content: space-around;
  background-color: var(--md-sys-color-surface-variant);
  padding: 16px;
  border-radius: 12px;
  margin-bottom: 24px;
  text-align: center;
}
.status-item {
  font-size: 1.1em;
}
.status-item span {
  display: block;
  font-weight: 700;
  font-size: 1.3em;
  color: var(--md-sys-color-primary);
}
#scenario-text {
  font-size: 1.4em;
  min-height: 100px;
  margin-bottom: 24px;
}
.game-options {
  display: grid;
  gap: 12px;
}
.option-btn {
  width: 100%;
  padding: 16px;
  font-size: 1.1em;
  border-radius: 12px;
  border: 2px solid var(--md-sys-color-outline);
  background-color: transparent;
  color: var(--md-sys-color-on-surface);
  cursor: pointer;
  text-align: left;
}
.option-btn:hover {
  border-color: var(--md-sys-color-primary);
  background-color: var(--md-sys-color-secondary-container);
}
#decision-result {
  margin-top: 24px;
  font-size: 1.1em;
  font-style: italic;
  color: var(--md-sys-color-on-surface-variant);
}
#next-turn-btn {
  margin-top: 16px;
}
#game-main-screen,
#game-end-screen {
  display: none;
}
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: none;
  background: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--md-sys-color-on-surface-variant);
}
.theme-switcher {
  display: flex;
  border-radius: 50px;
  border: 1px solid var(--md-sys-color-outline);
  overflow: hidden;
  background-color: var(--md-sys-color-surface-variant);
}
.theme-switcher .icon-btn {
  width: 56px;
  height: 40px;
  border-radius: 0;
  background-color: transparent;
  color: var(--md-sys-color-on-surface-variant);
}
.theme-switcher .icon-btn:first-child {
  border-right: 1px solid var(--md-sys-color-outline);
}
.theme-switcher .icon-btn.active {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}
.menu-btn,
.navbar-overlay {
  display: none;
}
body.navbar-open .navbar-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--md-sys-color-scrim);
  z-index: 99;
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 992px) {
  .menu-btn {
    display: flex;
  }
  .main-header {
    justify-content: space-between;
  }
  .navbar {
    transform: translateX(-100%);
  }
  body.navbar-open .navbar {
    transform: translateX(0);
  }
  body.navbar-open .page-wrapper {
    transform: translateX(280px);
  }
  .page-wrapper {
    margin-left: 0;
  }
  .main-content-wrapper {
    padding: 16px;
  }
  .content-card {
    padding: 16px;
  }
  .game-window {
    padding: 16px;
  }
  .game-window h1 {
    font-size: 2em;
  }
  .status-bar {
    flex-wrap: wrap;
    gap: 16px;
  }
  .status-item {
    flex-basis: 40%;
  }
}