/* Reset and base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0a0a0a;
  --text: #fafafa;
  --text-dim: #666;
  --accent: #ff4d4d;
  --accent-glow: rgba(255, 77, 77, 0.3);
  --reclaim: #4dff88;
  --reclaim-glow: rgba(77, 255, 136, 0.3);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  /* --vh is set via JS to handle mobile browser nav bar resizing */
  --vh: 1vh;
}

body {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Sections */
.section {
  min-height: 100vh; /* Fallback */
  min-height: calc(var(--vh, 1vh) * 100);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  position: relative;
}

@media (max-width: 600px) {
  .section {
    padding: 3rem 1rem;
  }
}

.content {
  max-width: 800px;
  width: 100%;
  text-align: center;
}

/* Typography */
.headline {
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
}

.stat-text {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 600;
  margin-bottom: 1rem;
}

.stat-text.big {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.stat-text span,
.stat-subtext span {
  color: var(--accent);
}

.stat-subtext {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--text-dim);
}

.stat-subtext.big {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  color: var(--accent);
  font-weight: 600;
}

/* Knob */
.knob-container {
  max-width: 400px;
  margin: 0 auto 2rem;
  position: relative;
}

#clock {
  width: 100%;
  cursor: grab;
  overflow: visible;
}

#clock:active {
  cursor: grabbing;
}

/* Tick marks */
.tick-marks .tick {
  stroke: #333;
  stroke-width: 2;
  stroke-linecap: round;
  transition: stroke 0.2s ease;
}

.tick-marks .tick.major {
  stroke: #444;
  stroke-width: 2.5;
}

.tick-marks .tick.active {
  stroke: var(--accent);
}

/* Knob face - inner circle with depth */
.knob-face {
  fill: #0d0d0d;
  stroke: #1a1a1a;
  stroke-width: 2;
}

/* Center text */
.clock-text {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4.5rem;
  font-weight: 700;
  fill: var(--text);
  letter-spacing: -0.02em;
}

.clock-subtext {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  fill: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Handle - refined orb */
.handle {
  cursor: grab;
  transition: filter 0.2s ease, transform 0.15s ease;
}

.handle:hover {
  filter: url(#handle-glow) !important;
}

#clock:active .handle {
  cursor: grabbing;
}

/* Larger touch target on mobile */
@media (max-width: 600px) {
  .handle {
    r: 28; /* Larger radius for easier touch */
  }
}

/* Mobile fallback input for clock */
.clock-fallback {
  display: none;
  margin-top: 1.5rem;
}

@media (max-width: 600px) {
  .clock-fallback {
    display: block;
  }
}

.clock-fallback-label {
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
  display: block;
}

.clock-fallback-input {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  width: 120px;
  text-align: center;
  background: #1a1a1a;
  border: 2px solid #333;
  border-radius: 8px;
  color: var(--text);
  padding: 0.75rem;
  transition: border-color 0.3s ease;
}

.clock-fallback-input:focus {
  outline: none;
  border-color: var(--accent);
}

/* Touch-friendly slider styling */
@media (max-width: 600px) {
  #reclaim-slider::-webkit-slider-thumb {
    width: 40px;
    height: 40px;
  }

  #reclaim-slider::-moz-range-thumb {
    width: 40px;
    height: 40px;
  }
}

/* Scroll prompt */
.scroll-prompt {
  color: var(--text-dim);
  font-size: 1rem;
  animation: pulse 2s ease-in-out infinite;
  margin-top: 2rem;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Mini clocks */
.mini-clock-container {
  max-width: 150px;
  margin: 0 auto 2rem;
}

.mini-clock {
  width: 100%;
}

.week-clocks {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.week-clocks .mini-clock {
  width: 60px;
  height: 60px;
}

@media (min-width: 600px) {
  .week-clocks .mini-clock {
    width: 80px;
    height: 80px;
  }
}

/* Calendar grid */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  max-width: 400px;
  margin: 0 auto 2rem;
}

.calendar-day {
  aspect-ratio: 1;
  background: #1a1a1a;
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}

.calendar-day::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0%;
  background: var(--accent);
  transition: height 0.3s ease;
}

.calendar-day.filled::after {
  height: var(--fill, 25%);
}

/* Year bar */
.year-bar-container {
  max-width: 600px;
  margin: 0 auto 3rem;
}

.year-bar {
  height: 60px;
  background: #1a1a1a;
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.year-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #ff6b6b);
  transition: width 0.5s ease;
  box-shadow: 0 0 40px var(--accent-glow);
}

.year-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  color: var(--text-dim);
  font-size: 0.875rem;
}

/* Age input */
.age-input-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

#age-input {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 4rem;
  font-weight: 700;
  width: 200px;
  text-align: center;
  background: transparent;
  border: none;
  border-bottom: 4px solid var(--text-dim);
  color: var(--text);
  padding: 0.5rem;
  transition: border-color 0.3s ease;
}

#age-input:focus {
  outline: none;
  border-color: var(--accent);
}

#age-input::placeholder {
  color: var(--text-dim);
}

/* Hide number input spinners */
#age-input::-webkit-outer-spin-button,
#age-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

#age-input[type=number] {
  -moz-appearance: textfield;
}

#age-submit {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  padding: 1rem 3rem;
  background: var(--accent);
  color: var(--bg);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
  min-width: 140px;
}

#age-submit:hover:not(:disabled) {
  transform: scale(1.05);
  box-shadow: 0 0 30px var(--accent-glow);
}

#age-submit:disabled {
  cursor: wait;
  transform: none;
}

/* Silhouette */
.silhouette-container {
  margin-bottom: 2rem;
}

.silhouette-wrapper {
  display: inline-block;
  text-align: center;
}

.silhouette {
  width: 150px;
  height: 375px;
}

@media (min-width: 600px) {
  .silhouette {
    width: 200px;
    height: 500px;
  }
}

.silhouette-label {
  margin-top: 1rem;
  font-size: 1rem;
  color: var(--text-dim);
}

/* Reclaim section */
.reclaim-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

/* Mobile: reorganize reclaim layout */
@media (max-width: 600px) {
  .reclaim-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 1rem;
    justify-items: center;
    align-items: end;
  }

  /* Silhouettes side by side in first row */
  .reclaim-container .silhouette-wrapper:first-child {
    grid-column: 1;
    grid-row: 1;
  }

  .reclaim-container .silhouette-wrapper.reclaimed {
    grid-column: 2;
    grid-row: 1;
  }

  /* Slider spans full width in second row */
  .reclaim-container .reclaim-slider-container {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  /* Smaller silhouettes on mobile */
  .reclaim-container .silhouette {
    width: 120px;
    height: 300px;
  }
}

.reclaim-slider-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem;
}

@media (max-width: 600px) {
  .reclaim-slider-container {
    padding: 1rem;
    width: 100%;
  }
}

#reclaim-slider {
  -webkit-appearance: none;
  width: 200px;
  height: 8px;
  border-radius: 4px;
  background: #1a1a1a;
  outline: none;
  transform: rotate(90deg);
  margin: 4rem 0;
}

/* Mobile: horizontal slider */
@media (max-width: 600px) {
  #reclaim-slider {
    transform: none;
    width: 100%;
    max-width: 250px;
    margin: 1.5rem 0;
  }
}

#reclaim-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent);
  cursor: grab;
  box-shadow: 0 0 20px var(--accent-glow);
  transition: transform 0.15s ease;
}

#reclaim-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

#reclaim-slider::-moz-range-thumb {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent);
  cursor: grab;
  border: none;
  box-shadow: 0 0 20px var(--accent-glow);
}

.reclaim-stats {
  text-align: center;
}

.reclaim-stats p {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.reclaim-highlight {
  color: var(--reclaim);
  font-weight: 600;
  font-size: 1.5rem !important;
}

.silhouette-wrapper.reclaimed {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.silhouette-wrapper.reclaimed.visible {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 600px) {
  .silhouette-wrapper.reclaimed {
    transform: translateY(20px);
  }

  .silhouette-wrapper.reclaimed.visible {
    transform: translateY(0);
  }
}

/* Final section */
.headline.final {
  font-size: clamp(2.5rem, 7vw, 5rem);
  color: var(--text);
}

/* Utility classes */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* Hidden sections (before interaction) */
#remaining,
#silhouette,
#reclaim,
#final {
  display: none;
}

#remaining.active,
#silhouette.active,
#reclaim.active,
#final.active {
  display: flex;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: #333;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #444;
}

/* Opportunity Cost */
.opportunity-cost-container {
  margin-top: 4rem;
  text-align: left;
  opacity: 0;
  transform: translateY(20px);
}

.opportunity-cost-container.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.scrolly-text {
  font-size: 1.5rem;
  color: var(--text-dim);
  margin-bottom: 2rem;
  font-weight: 500;
}

.alternatives-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.alternative-item {
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--text);
  padding-left: 1.5rem;
  border-left: 3px solid var(--accent);
  opacity: 0.5;
  transition: opacity 0.3s ease, padding-left 0.3s ease;
}

.alternative-item:hover,
.alternative-item.active {
  opacity: 1;
  padding-left: 2rem;
}

.alternative-item .highlight {
  color: var(--accent);
  font-size: 1.2em;
}

/* Life Grid */
#life-grid-section {
    display: none; /* Initially hidden until age input */
    flex-direction: column;
    overflow-x: hidden;
}

#life-grid-section.active {
    display: flex;
}

#life-grid-section .content {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

/* Desktop: Week-based grid (4160 dots) */
.life-grid {
    display: flex;
    flex-wrap: wrap-reverse;
    gap: 3px;
    justify-content: center;
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
    box-sizing: border-box;
}

.life-week {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #333;
}

.life-week.lived {
    background-color: #555;
    opacity: 0.3;
}

.life-week.scroll {
    background-color: var(--accent);
    box-shadow: 0 0 2px var(--accent);
}

.life-week.free {
    background-color: #fafafa;
    opacity: 0.8;
}

/* Mobile: Year-based grid (80 boxes for better performance) */
@media (max-width: 768px) {
    .life-grid {
        display: grid;
        grid-template-columns: repeat(10, 1fr);
        gap: 6px;
        max-width: 350px;
        flex-wrap: unset;
    }

    .life-grid.years-grid {
        /* Ensure grid layout for years */
    }
}

.life-year {
    aspect-ratio: 1;
    border-radius: 4px;
    background-color: #333;
}

.life-year.lived {
    background-color: #555;
    opacity: 0.4;
}

.life-year.scroll {
    background-color: var(--accent);
    box-shadow: 0 0 4px var(--accent-glow);
}

.life-year.free {
    background-color: #fafafa;
    opacity: 0.9;
}

@media (max-width: 600px) {
    .life-grid {
        gap: 5px;
        max-width: 320px;
        padding: 0 0.5rem;
    }
}

@media (max-width: 380px) {
    .life-grid {
        gap: 4px;
        max-width: 280px;
    }
}

.grid-subtext {
    color: var(--text-dim);
    margin-bottom: 2rem;
    font-size: 1.2rem;
}

.grid-legend {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: var(--text-dim);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.dot.lived { background-color: #555; }
.dot.scroll { background-color: var(--accent); }
.dot.free { background-color: #fafafa; }

.grid-stats {
    font-size: 1.5rem;
    font-weight: 500;
}

.highlight-red {
    color: var(--accent);
    font-weight: 700;
}

/* Restart Button */
.restart-btn {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  padding: 1rem 2rem;
  background: transparent;
  color: var(--text-dim);
  border: 2px solid var(--text-dim);
  border-radius: 50px;
  cursor: pointer;
  margin-top: 3rem;
  transition: all 0.3s ease;
}

.restart-btn:hover {
  color: var(--text);
  border-color: var(--text);
  background: rgba(255, 255, 255, 0.1);
}

/* ============================================
   SCROLLYTELLING SECTION (Pudding-style)
   ============================================ */

.scrolly-section {
  position: relative;
  display: flex;
  padding: 0;
  min-height: auto;
}

/* Sticky graphic container - left side on desktop */
.scrolly-graphic {
  position: sticky;
  top: 0;
  width: 50%;
  height: 100vh;
  height: calc(var(--vh, 1vh) * 100);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 1;
}

.scrolly-viz {
  text-align: center;
  padding: 2rem;
}

.scrolly-counter {
  margin-bottom: 2rem;
}

#scrolly-number {
  font-size: clamp(4rem, 10vw, 8rem);
  font-weight: 700;
  color: var(--accent);
  display: block;
  line-height: 1;
}

#scrolly-unit {
  font-size: clamp(1rem, 2vw, 1.5rem);
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Visualization states - only one visible at a time */
.scrolly-visual {
  position: relative;
  min-height: 200px;
}

.viz-state {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.viz-state.active {
  opacity: 1;
  pointer-events: auto;
  position: relative;
  left: 0;
  transform: none;
}

.viz-label {
  margin-top: 1rem;
  color: var(--text-dim);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Scrolly clock (daily) */
.scrolly-clock {
  width: 150px;
  height: 150px;
}

/* Week clocks grid */
.week-clocks-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
  max-width: 240px;
  margin: 0 auto;
}

.week-clocks-grid .mini-clock {
  width: 50px;
  height: 50px;
}

.week-clocks-grid .mini-clock:last-child {
  grid-column: 2 / 4;
  justify-self: center;
}

/* Scrolling steps container - right side */
.scrolly-steps {
  width: 50%;
  padding: 0 4rem;
}

.scrolly-step {
  min-height: 100vh;
  min-height: calc(var(--vh, 1vh) * 100);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 0;
  opacity: 0.3;
  transition: opacity 0.5s ease;
}

.scrolly-step.active {
  opacity: 1;
}

.step-context {
  color: var(--text-dim);
  font-size: 1.1rem;
  margin-top: 0.5rem;
}

.methodology-note {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.methodology-note a {
  color: var(--accent);
  text-decoration: none;
}

.methodology-note a:hover {
  text-decoration: underline;
}

/* Mobile: stack vertically */
@media (max-width: 768px) {
  .scrolly-section {
    flex-direction: column;
  }

  .scrolly-graphic {
    position: sticky;
    top: 0;
    width: 100%;
    height: 50vh;
    height: calc(var(--vh, 1vh) * 50);
    border-bottom: 1px solid #1a1a1a;
  }

  .scrolly-steps {
    width: 100%;
    padding: 0 1.5rem;
  }

  .scrolly-step {
    min-height: 60vh;
    min-height: calc(var(--vh, 1vh) * 60);
    padding: 2rem 0;
  }

  #scrolly-number {
    font-size: clamp(3rem, 15vw, 5rem);
  }

  .scrolly-clock {
    width: 100px;
    height: 100px;
  }

  .week-clocks-grid {
    max-width: 180px;
  }

  .week-clocks-grid .mini-clock {
    width: 35px;
    height: 35px;
  }
}

/* ============================================
   METHODOLOGY SECTION
   ============================================ */

.methodology-section {
  min-height: auto;
  padding: 6rem 2rem;
  background: #0d0d0d;
}

.methodology-section .content {
  max-width: 700px;
  text-align: left;
}

.methodology-section .headline {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: 3rem;
  text-align: center;
}

.methodology-content {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.method-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.method-item p {
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.method-item strong {
  color: var(--accent);
}

.method-item cite {
  font-size: 0.85rem;
  font-style: normal;
  color: #555;
}

.method-item cite a {
  color: #666;
  text-decoration: none;
}

.method-item cite a:hover {
  color: var(--accent);
  text-decoration: underline;
}