:root {
  /* DDM Reference Colors */
  --color-primary: #655E48;
  --color-surface-tint: #655E48;
  --color-on-primary: #FFFFFF;
  --color-primary-container: #FBF1D4;
  --color-on-primary-container: #746D56;
  --color-secondary: #9E4214;
  --color-secondary-70: #FF8C59;
  --color-on-secondary: #FFFFFF;
  --color-secondary-container: #EA7B49;
  --color-on-secondary-container: #5B1E00;
  --color-tertiary: #512E2C;
  --color-on-tertiary: #FFFFFF;
  --color-tertiary-container: #6B4442;
  --color-on-tertiary-container: #E8B3B0;
  --color-error: #BA1A1A;
  --color-on-error: #FFFFFF;
  --color-error-container: #FFDAD6;
  --color-on-error-container: #93000A;
  --color-background: #FDF8F5;
  --color-on-background: #1C1B19;
  --color-surface: #FFF8F4;
  --color-on-surface: #1D1B19;
  --color-surface-variant: #ECE1D3;
  --color-on-surface-variant: #4D463B;
  --color-outline: #7E766A;
  --color-outline-variant: #CFC5B7;
  --color-shadow: #000000;
  --color-scrim: #000000;
  --color-inverse-surface: #32302D;
  --color-inverse-on-surface: #F6F0EB;
  --color-inverse-primary: #CFC6AB;
  
  --color-paper-base: var(--color-background);
  --color-ink-black: var(--color-on-background);
  --effect-letterpress: 0 1px 0 rgba(255, 255, 255, 0.7);

  --font-sans: 'Funnel Sans', sans-serif;
  --font-display: 'Funnel Display', sans-serif;
}

:root.dark {
  --color-primary: #FFFFFF;
  --color-surface-tint: #CFC6AB;
  --color-on-primary: #35301D;
  --color-primary-container: #ECE2C6;
  --color-on-primary-container: #6B644E;
  --color-secondary: #FFB597;
  --color-secondary-70: #FF8C59;
  --color-on-secondary: #591D00;
  --color-secondary-container: #EA7B49;
  --color-on-secondary-container: #5B1E00;
  --color-tertiary: #EFBAB6;
  --color-on-tertiary: #492725;
  --color-tertiary-container: #6B4442;
  --color-on-tertiary-container: #E8B3B0;
  --color-error: #FFB4AB;
  --color-on-error: #690005;
  --color-error-container: #93000A;
  --color-on-error-container: #FFDAD6;
  --color-background: #141311;
  --color-on-background: #E6E2DE;
  --color-surface: #151311;
  --color-on-surface: #E7E1DD;
  --color-surface-variant: #4D463B;
  --color-on-surface-variant: #CFC5B7;
  --color-outline: #988F83;
  --color-outline-variant: #4D463B;
  --color-shadow: #000000;
  --color-scrim: #000000;
  --color-inverse-surface: #E7E1DD;
  --color-inverse-on-surface: #32302D;
  --color-inverse-primary: #655E48;
  
  --color-paper-base: var(--color-background);
  --color-ink-black: var(--color-on-background);
  --effect-letterpress: 0 -1px 0 rgba(0, 0, 0, 0.6), 0 1px 0 rgba(255, 255, 255, 0.05);
}

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  font-family: var(--font-sans);
  background-color: transparent;
  color: var(--color-ink-black);
  overflow: hidden;
}

::selection {
  background-color: var(--color-secondary);
  color: #ffffff;
}
/* Background Canvas */
.bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

/* Layout */
.portfolio-container {
  display: grid;
  grid-template-columns: 1fr 1.618fr 2.618fr;
  width: 100%;
  max-width: 1500px;
  margin: 0 auto;
  height: 100vh;
  position: relative;
  z-index: 1;
}

.pane {
  position: relative;
  padding: 40px;
  overflow-y: auto;
  box-sizing: border-box;
}

.pane-nav {
  display: flex;
  flex-direction: column;
}

.pane-list {
  max-width: 480px;
}

/* Logo */
.site-logo {
  display: block;
  width: 92px;
  height: 18px;
  background-color: var(--color-primary);
  -webkit-mask: url('iamliam.svg') no-repeat left center / contain;
  mask: url('iamliam.svg') no-repeat left center / contain;
  margin-bottom: 62px;
}

/* Nav Styles */
.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.nav-item {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  text-shadow: var(--effect-letterpress);
}

.nav-item a {
  display: block;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.3s ease, font-weight 0.3s ease, font-variation-settings 0.3s ease;
}

.nav-item:hover {
  color: var(--color-secondary);
}

.nav-item.active,
.project-item.active {
  font-family: var(--font-display);
  font-weight: 800;
}

/* List Styles */
.project-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 80px;
}

.project-item {
  cursor: pointer;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  transition: color 0.3s ease, font-weight 0.3s ease, font-variation-settings 0.3s ease;
  text-shadow: var(--effect-letterpress);
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  gap: 4px;
}

.project-item > span:first-child,
.project-item a > span:first-child {
  margin-right: auto;
}

.project-item:hover {
  color: var(--color-secondary);
}

/* Metadata Chips */
.meta-chip {
  font-size: 11px;
  font-family: var(--font-sans);
  font-weight: 300;
  background-color: color-mix(in srgb, var(--color-surface-variant) 40%, transparent);
  color: var(--color-on-surface-variant);
  padding: 2px 8px;
  border-radius: 999px;
  text-shadow: none;
  text-transform: lowercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.meta-chip.icon {
  font-family: 'Material Symbols Outlined';
  font-size: 14px;
  padding: 2px 6px;
  text-transform: none;
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 14;
}

/* Detail Styles */
.detail-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 80px;
  max-width: 600px;
}

.detail-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
  margin: 0;
  line-height: 1.5;
  text-shadow: var(--effect-letterpress);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
}

.project-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
  margin-top: 2px;
}

.project-body {
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-on-surface-variant);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.project-body p {
  margin: 0;
}
.project-subtitle {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 16px;
  margin: 32px 0 0 0;
  color: var(--color-ink-black);
  text-shadow: var(--effect-letterpress);
}
.project-body a {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--color-secondary);
  text-decoration: none;
}
.project-body a:hover {
  text-decoration: underline;
}
.project-hero {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 12px;
}

.detail-description, .detail-content p {
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-on-surface-variant);
  margin: 0;
  text-align: justify;
  hyphens: auto;
  word-spacing: 64% 100% 103%;
  /* Provide a subtle variance for letter spacing as well to prevent rivers */
  letter-spacing: -0.02em 0em 0.02em;
}

.external-link {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-secondary);
  text-decoration: none;
  display: inline-block;
  margin-top: 16px;
  font-size: 16px;
}

.external-link:hover {
  text-decoration: underline;
}

/* Theme Toggle */
.theme-toggle-container {
  display: flex;
  justify-content: flex-start;
}

.theme-toggle {
  display: grid;
  place-items: center;
  border-radius: 50%;
  padding: 0.5rem;
  border: none;
  background: none;
  color: var(--color-ink-black);
  transition: color 0.3s ease;
  cursor: pointer;
}

.theme-toggle .moon-icon,
.theme-toggle .sun-icon {
  grid-area: 1 / 1;
}

.theme-toggle .moon-icon {
  transition: opacity 0.3s ease;
}

.theme-toggle .sun-icon {
  opacity: 0;
  transition: opacity 0.3s ease;
}

:root.dark .theme-toggle .moon-icon {
  opacity: 0;
}

:root.dark .theme-toggle .sun-icon {
  opacity: 1;
}

/* Mobile Navigation */
.mobile-back-btn {
  display: none;
  background: none;
  border: none;
  padding: 0 0 16px 0;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 800;
  color: var(--color-ink-black);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-shadow: var(--effect-letterpress);
  transition: opacity 0.2s ease;
}

.mobile-back-btn:hover {
  opacity: 0.7;
}

@media (min-width: 601px) and (max-width: 1150px) {
  .portfolio-container {
    grid-template-columns: 1fr 2.618fr;
  }
  
  /* Force panes into specific grid cells so they overlap during crossfade transitions */
  .pane-nav {
    grid-column: 1;
    grid-row: 1;
  }
  .pane-list, .pane-detail {
    grid-column: 2;
    grid-row: 1;
  }

  /* Hide the right-side panes by default */
  .pane-list, .pane-detail {
    display: none;
  }

  /* Nav is always visible in tablet */
  .pane-nav {
    display: flex;
  }

  /* Show list pane when no project is selected */
  .portfolio-container.state-nav .pane-list,
  .portfolio-container.state-list .pane-list {
    display: block;
  }

  /* Show detail pane (and hide list pane) when a project is selected */
  .portfolio-container.state-detail .pane-detail {
    display: block;
  }

  

  /* Show back button ONLY in pane-detail to return to the list */
  .portfolio-container.state-detail .pane-detail .mobile-back-btn {
    display: flex;
    align-items: center;
  }
}

@media (max-width: 600px) {
  

  .portfolio-container {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    overflow: hidden;
  }
  
  .pane {
    width: 100%;
    flex-shrink: 0;
    display: none; /* JS toggles display via container classes */
    grid-column: 1;
    grid-row: 1;
  }

  .portfolio-container.state-nav .pane-nav {
    display: flex;
  }
  .portfolio-container.state-list .pane-list {
    display: block;
  }
  .portfolio-container.state-detail .pane-detail {
    display: block;
  }

  

  .mobile-back-btn {
    display: flex;
    align-items: center;
    position: absolute;
    top: 33px;
    left: 40px;
    z-index: 100;
  }
}

/* Baseline Guide */
.baseline-guide {
  position: absolute;
  top: 138px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-outline-variant);
  pointer-events: none;
  z-index: 50;
}

/* Material Symbols */
.material-symbols-outlined {
  font-family: 'Material Symbols Outlined';
  font-weight: 400;
  font-style: normal;
  font-size: 24px;
  display: inline-block;
  line-height: 1;
  text-transform: none;
  letter-spacing: normal;
  word-wrap: normal;
  white-space: nowrap;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -moz-osx-font-smoothing: grayscale;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  transition: font-variation-settings 0.3s ease, font-weight 0.3s ease;
}

.material-symbols-outlined:hover {
  font-variation-settings: 'FILL' 0, 'wght' 700, 'GRAD' 0, 'opsz' 24;
}

/* --- Mobile Fixes --- */
@media (max-width: 600px) {
  /* Hide desktop toggle, show and position mobile toggle */
  .desktop-toggle {
    display: none !important;
  }
  .mobile-toggle {
    display: flex !important;
    position: fixed;
    top: 33px; /* align with logo center visually */
    right: 32px;
    z-index: 100;
  }
  
  /* Add padding to panes to account for system navigation bar */
  .pane {
    padding-bottom: 120px !important;
  }
}

@media (min-width: 601px) {
  /* Hide mobile toggle on desktop */
  .mobile-toggle {
    display: none !important;
  }
}