/* Global Reset & Typography */
:root {
  --bg-color: #fcfcfc;
  --text-color: #111111;
  --text-secondary: #767676;
  --border-color: #e5e5e5;
  --accent-color: #111111;
  --hover-bg: #ebebeb;
  --card-bg: #fafafa;
  --font-display: 'Outfit', sans-serif;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  
  --specimen-font-size: 36px;
  --specimen-font-weight: 400;
  --specimen-font-style: normal;
  
  --plus-weight: 2.5px;
}

[data-theme="dark"] {
  --bg-color: #0c0c0c;
  --text-color: #f3f3f3;
  --text-secondary: #8c8c8c;
  --border-color: #222222;
  --accent-color: #ffffff;
  --hover-bg: #1c1c1c;
  --card-bg: #141414;
  --plus-weight: 2.5px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-ui);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
  overflow-x: hidden;
  overflow-y: scroll;
  min-height: 80vh; /* 80vh * 1.25 zoom = 100vh */
}

body {
  zoom: 1.25;
}

/* Custom Cursor */
.custom-cursor {
  width: 8px;
  height: 8px;
  background: var(--text-color);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width var(--transition-fast), height var(--transition-fast), background-color var(--transition-fast);
  mix-blend-mode: difference;
}

body:hover .custom-cursor {
  opacity: 1;
}

.custom-cursor.hovered {
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--text-color);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Header & Navigation */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2.5rem 3.5rem;
  border-bottom: 1px solid transparent;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(252, 252, 252, 0.7);
  transition: border-color var(--transition-smooth), background var(--transition-smooth);
}

[data-theme="dark"] .app-header {
  background: rgba(12, 12, 12, 0.7);
}

.app-header.scrolled {
  border-color: var(--border-color);
}

.header-left {
  display: flex;
  align-items: baseline;
  gap: 2.5rem;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.brand-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text-color);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: opacity var(--transition-fast);
}

.brand-link:hover {
  opacity: 0.7;
}

.nav-btn {
  background: none;
  border: none;
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.2rem 0;
  position: relative;
  text-decoration: none;
  transition: color var(--transition-fast), font-weight var(--transition-fast);
}

.nav-btn::after {
  content: '';
  position: absolute;
  bottom: 0.2rem;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--text-color);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.nav-btn:hover, .nav-btn.active {
  color: var(--text-color);
  font-weight: 500;
}

.nav-btn:hover::after, .nav-btn.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

#expand-drawer-btn::after {
  display: none !important;
}

.hover-link {
  position: relative;
  text-decoration: none;
  color: var(--text-color);
  display: inline-block;
  transition: color var(--transition-fast);
}

.hover-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: #0000ff;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.hover-link:hover {
  color: #0000ff;
}

.hover-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Weight Dropdown Selector */
.custom-select-wrapper {
  position: relative;
  user-select: none;
}

.select-trigger {
  background: none;
  border: none;
  font-size: 0.9rem;
  font-family: var(--font-ui);
  color: var(--text-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem;
  transition: opacity var(--transition-fast);
}

.select-trigger:hover {
  opacity: 0.7;
}

.dropdown-arrow {
  transition: transform var(--transition-fast);
}

.custom-select-wrapper.open .dropdown-arrow {
  transform: rotate(180deg);
}

.select-options {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  min-width: 120px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 101;
  overflow: hidden;
}

[data-theme="dark"] .select-options {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.custom-select-wrapper.open .select-options {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.option-item {
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.option-item:hover {
  background-color: var(--hover-bg);
  color: var(--text-color);
}

.option-item.active {
  color: var(--text-color);
  font-weight: 600;
  background-color: var(--hover-bg);
}

/* Oblique Button Styling (Minimal + oblique strike line) */
.oblique-toggle {
  background: none;
  border: none;
  font-size: 0.9rem;
  font-family: var(--font-display);
  font-style: italic;
  color: var(--text-color);
  cursor: pointer;
  padding: 0.5rem;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.oblique-toggle .btn-text {
  transition: transform var(--transition-fast);
}

.oblique-toggle .strike-line {
  position: absolute;
  width: 100%;
  height: 1.5px;
  background-color: var(--text-color);
  transform: rotate(-15deg);
  transform-origin: center;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  opacity: 0.65;
}

.oblique-toggle.active {
  font-style: italic;
}

.oblique-toggle.active .strike-line {
  transform: rotate(0deg) scaleX(0);
  opacity: 0;
}

/* Custom Range Slider Styling (8pt —————+————— 72pt) */
.slider-container {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.slider-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-ui);
}

.slider-track-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 150px;
}

.slider-track-wrapper input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 24px;
  background: transparent;
  cursor: pointer;
  position: relative;
  z-index: 2;
  margin: 0;
}

.slider-track-wrapper input[type="range"]:focus {
  outline: none;
}

/* The Line Track */
.slider-track-wrapper::before {
  content: '';
  position: absolute;
  left: 7px;
  right: 7px;
  top: 50%;
  transform: translateY(-50%);
  height: 1px;
  background-color: var(--text-color);
  opacity: 0.25;
  z-index: 1;
  pointer-events: none;
}

/* WebKit/Blink (Chrome/Safari/Edge) Thumb */
.slider-track-wrapper input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  /* Plus Sign drawn with CSS backgrounds */
  background: 
    linear-gradient(var(--text-color), var(--text-color)) no-repeat center/var(--plus-weight) 10px,
    linear-gradient(var(--text-color), var(--text-color)) no-repeat center/10px var(--plus-weight);
  background-color: transparent;
  box-shadow: none;
  -webkit-box-shadow: none;
  border-radius: 0;
  border: none;
  z-index: 3;
  transition: transform var(--transition-fast);
}

.slider-track-wrapper input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-track-wrapper input[type="range"]::-webkit-slider-thumb:active {
  transform: scale(1.3) rotate(90deg);
}

/* Firefox Thumb */
.slider-track-wrapper input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: 
    linear-gradient(var(--text-color), var(--text-color)) no-repeat center/var(--plus-weight) 10px,
    linear-gradient(var(--text-color), var(--text-color)) no-repeat center/10px var(--plus-weight);
  background-color: transparent;
  box-shadow: none;
  border-radius: 0;
  border: none;
  z-index: 3;
  transition: transform var(--transition-fast);
  cursor: pointer;
}

.slider-track-wrapper input[type="range"]::-moz-range-thumb:hover {
  transform: scale(1.2);
}

.slider-track-wrapper input[type="range"]::-moz-range-thumb:active {
  transform: scale(1.3) rotate(90deg);
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text-color);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover {
  background-color: var(--hover-bg);
}

.hero-section {
  height: 80vh; /* 80vh * 1.25 zoom = 100vh exact viewport height */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0 4rem;
  position: relative;
}

.main-display-container {
  width: 100%;
  max-width: 1200px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 0;
}

.specimen-text-wrapper {
  width: 100%;
  position: relative;
  text-align: center;
}

.specimen-text {
  font-family: var(--font-display);
  font-size: var(--specimen-font-size);
  font-weight: var(--specimen-font-weight);
  font-style: var(--specimen-font-style);
  line-height: 1.25;
  color: var(--text-color);
  outline: none;
  caret-color: var(--text-color);
  border: 1px solid transparent;
  padding: 1rem;
  border-radius: 8px;
  transition: border-color var(--transition-fast), font-size var(--transition-fast), font-weight var(--transition-fast), font-style var(--transition-fast);
  word-break: break-word;
}

.specimen-text:focus {
  border-color: var(--border-color);
  background: rgba(0, 0, 0, 0.01);
}

[data-theme="dark"] .specimen-text:focus {
  background: rgba(255, 255, 255, 0.01);
}

.interactive-helper {
  margin-top: 3rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  opacity: 0.7;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 500;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.specimen-text:focus ~ .interactive-helper {
  opacity: 0;
}

/* Details Section (Below the fold) */
.details-section {
  padding: 6rem 4rem;
  background-color: var(--bg-color);
  transition: background-color var(--transition-smooth);
  max-width: 1400px;
  margin: 0 auto;
}

.section-divider {
  width: 100%;
  height: 1px;
  background-color: var(--border-color);
  margin-bottom: 5rem;
}

.grid-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 6rem;
  margin-bottom: 6rem;
}

@media (max-width: 968px) {
  .custom-cursor {
    display: none !important;
  }
  .grid-layout {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .app-header {
    padding: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
  }
  .header-left, .header-right {
    gap: 1.2rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  .slider-track-wrapper {
    width: 100px;
  }
  .hero-section {
    padding: 8rem 1.5rem 3rem 1.5rem;
  }
  .details-section {
    padding: 3rem 1.5rem;
  }
}

@media (max-width: 768px) {
  .select-options {
    right: auto;
    left: 0;
  }
  body {
    zoom: 1; /* Normalize zoom for mobile viewports */
  }
  .app-header {
    padding: 1rem;
    flex-direction: column;
    gap: 1.5rem;
    backdrop-filter: blur(12px);
  }
  .header-left {
    width: 100%;
    justify-content: space-between;
  }
  .header-right {
    width: 100%;
    justify-content: space-between;
    gap: 0.8rem;
  }
  .slider-container {
    display: none; /* Simplify header controls for mobile */
  }
  .waterfall-row {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 2.5rem 0;
  }
  .waterfall-row > .wf-label {
    display: none;
  }
  .wf-text {
    font-size: min(var(--specimen-font-size), 2.5rem) !important;
    white-space: normal;
  }
  .wf-desc {
    font-size: 1rem !important;
  }
  .specimen-text {
    font-size: min(var(--specimen-font-size), 1.6rem) !important;
  }
  .hero-section {
    height: auto;
    min-height: 85vh;
  }
}

.grid-block {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.block-title {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.8rem;
}

/* Glyph Palette */
.glyph-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 0.5rem;
}

.glyph-card {
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: inherit;
  font-style: inherit;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.glyph-card:hover {
  background-color: var(--hover-bg);
  border-color: var(--text-color);
  transform: translateY(-2px);
}

/* Waterfall Container */
.waterfall-container {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-color);
}

.waterfall-row {
  display: grid;
  grid-template-columns: 40px 1fr 300px;
  align-items: center;
  gap: 3rem;
  border-bottom: 1px solid var(--border-color);
  padding: 3rem 1rem;
}

a.waterfall-row.project-link {
  text-decoration: none;
  color: inherit;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

a.waterfall-row.project-link:hover {
  background-color: #000000;
  color: #ffffff;
}

a.waterfall-row.project-link:hover .wf-desc,
a.waterfall-row.project-link:hover .wf-label {
  color: #ffffff;
  transition: color var(--transition-fast);
}

[data-theme="dark"] a.waterfall-row.project-link:hover {
  background-color: #ffffff;
  color: #000000;
}

[data-theme="dark"] a.waterfall-row.project-link:hover .wf-desc,
[data-theme="dark"] a.waterfall-row.project-link:hover .wf-label {
  color: #000000;
}

.waterfall-row.final-row {
  grid-template-columns: 1fr;
  text-align: center;
  padding: 4rem 1rem;
}

.wf-label {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-secondary);
}

.wf-text {
  font-family: var(--font-display);
  font-size: var(--specimen-font-size);
  font-weight: var(--specimen-font-weight);
  font-style: var(--specimen-font-style);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.wf-desc {
  font-family: var(--font-ui);
  font-size: calc(0.6rem + calc(var(--specimen-font-size) * 0.07));
  line-height: 1.5;
  color: var(--text-secondary);
  margin: 0;
}

/* Features Section */
.features-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-top: 4rem;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] .feature-card:hover {
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.feature-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Variable Axis Mini Slider */
.weight-mini-slider-container {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: 1rem;
}

.mini-slider {
  -webkit-appearance: none;
  appearance: none;
  flex-grow: 1;
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  outline: none;
}

.mini-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-color);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.mini-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.mini-slider-val {
  font-size: 0.8rem;
  font-weight: 600;
  min-width: 24px;
}

/* Proportion Demo */
.proportion-demo {
  margin-top: auto;
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  padding-top: 1rem;
}

.prop-letter {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 1;
  font-weight: 300;
  position: relative;
  display: inline-block;
  color: var(--text-color);
  opacity: 0.9;
}

.prop-letter::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 1px dashed rgba(0, 0, 0, 0.08);
  pointer-events: none;
}

[data-theme="dark"] .prop-letter::before {
  border-color: rgba(255, 255, 255, 0.08);
}

/* Stylistic Alternates Toggles */
.stylistic-toggles {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding-top: 1rem;
}

.style-toggle-btn {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.6rem 1rem;
  font-size: 0.8rem;
  font-family: var(--font-ui);
  text-align: left;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.style-toggle-btn:hover {
  border-color: var(--text-color);
  color: var(--text-color);
}

.style-toggle-btn.active {
  background-color: var(--text-color);
  color: var(--bg-color);
  border-color: var(--text-color);
}

/* Drawer Component */
.purchase-drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(4px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.purchase-drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.purchase-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 480px;
  max-width: 100%;
  height: 100%;
  background: var(--bg-color);
  box-shadow: -15px 0 50px rgba(0, 0, 0, 0.05);
  z-index: 1001;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  display: flex;
  flex-direction: column;
  padding: 3rem;
}

.purchase-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2.5rem;
}

.drawer-header h3 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.close-drawer-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast);
}

.close-drawer-btn:hover {
  color: var(--text-color);
}

.drawer-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex-grow: 1;
  overflow-y: auto;
}

.social-icon {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  transition: color var(--transition-fast);
}

.social-icon:hover {
  color: #0000ff;
}

.drawer-intro {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.license-card {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  position: relative;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.license-card:hover {
  border-color: var(--text-color);
  background-color: var(--hover-bg);
}

.license-card.popular {
  border-color: var(--text-color);
  background-color: rgba(0, 0, 0, 0.01);
}

[data-theme="dark"] .license-card.popular {
  background-color: rgba(255, 255, 255, 0.01);
}

.popular-badge {
  position: absolute;
  top: 0;
  right: 1.5rem;
  transform: translateY(-50%);
  background-color: var(--text-color);
  color: var(--bg-color);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 10px;
}

.license-info h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.license-info p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.license-price {
  font-size: 1.25rem;
  font-weight: 700;
}

.checkout-btn {
  background-color: var(--text-color);
  color: var(--bg-color);
  border: none;
  padding: 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  margin-top: auto;
  transition: opacity var(--transition-fast);
}

.checkout-btn:hover {
  opacity: 0.9;
}

/* Footer styling */
.app-footer {
  border-top: 1px solid var(--border-color);
  padding: calc(1rem + 2px) 3.5rem 1rem 3.5rem;
  margin-top: -2px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  background-color: var(--bg-color);
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
}

.footer-right {
  display: flex;
  gap: 2rem;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--text-color);
}

/* Article Navigation */
.article-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 4rem;
  padding-top: 0.5rem;
  border-top: 1px solid #cccccc;
}

[data-theme="dark"] .article-navigation {
  border-top-color: var(--border-color);
}

.article-nav-link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: #555555;
  transition: color var(--transition-fast);
  max-width: 45%;
}

[data-theme="dark"] .article-nav-link {
  color: var(--text-secondary);
}

.article-nav-link:hover {
  color: var(--text-color);
}

.article-nav-label {
  font-size: 0.85rem;
  font-style: oblique;
  text-transform: none;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  position: relative;
  display: inline-block;
}

.article-nav-label::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--text-color);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.article-nav-link:hover .article-nav-label::after {
  transform: scaleX(1);
  transform-origin: left;
}

.article-nav-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1.2;
}

.article-nav-next {
  text-align: right;
  margin-left: auto;
}


/* Scroll Reveal Animations */
.reveal-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-up.is-revealed {
  opacity: 1;
  transform: translateY(0);
}


/* Mobile Viewport for Waterfall Rows */
@media (max-width: 968px) {
  .waterfall-row {
    display: block;
    padding: 2.5rem 1.5rem;
  }
  a.waterfall-row.project-link {
    padding: 2.5rem 1.5rem;
  }
  .wf-label {
    display: inline-block;
    margin-right: 0.5rem;
    vertical-align: middle;
    font-size: 1.2rem;
  }
  .wf-text {
    display: inline;
    white-space: normal;
    vertical-align: middle;
    /* Use clamp to ensure it's not overwhelmingly large on mobile but still responsive to the slider */
    font-size: clamp(1.8rem, var(--specimen-font-size), 2.5rem);
  }
  .wf-desc {
    display: block;
    margin-top: 1.5rem;
    font-size: 1rem;
    line-height: 1.6;
  }
}




.store-link {
  color: #6666ff;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.store-link:hover {
  color: #0000ff;
}