/* ============================================
   ARVIO.UNO — Predictive Intelligence System
   ============================================ */

:root {
  --void-black: #0B0F1A;
  --predictive-cyan: #6EE7FF;
  --bg-deep: #05070D;
  --text-primary: #E6F0FF;
  --forecast-violet: #A78BFA;
  --cyan-dim: rgba(110, 231, 255, 0.15);
  --cyan-glow: rgba(110, 231, 255, 0.4);
  --violet-dim: rgba(167, 139, 250, 0.15);
  --violet-glow: rgba(167, 139, 250, 0.5);
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', 'IBM Plex Sans', system-ui, sans-serif;
  --section-min-h: 100vh;
  --section-min-h-mobile: 100svh;
  --transition-compute: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.5;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.5rem 1rem;
  background: var(--void-black);
  color: var(--predictive-cyan);
  z-index: 10000;
  text-decoration: none;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
}

.skip-link:focus {
  top: 0.5rem;
}

/* ---- Lens Header ---- */
.lens-header {
  position: fixed;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lens-trigger {
  position: relative;
  width: 48px;
  height: 48px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-compute);
}

.lens-trigger:hover,
.lens-trigger[aria-expanded="true"] {
  transform: scale(1.1);
}

.lens-core {
  width: 12px;
  height: 12px;
  background: var(--predictive-cyan);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--cyan-glow), 0 0 40px var(--cyan-dim);
  z-index: 3;
  transition: box-shadow 0.4s ease;
}

.lens-trigger[aria-expanded="true"] .lens-core {
  box-shadow: 0 0 30px var(--cyan-glow), 0 0 60px var(--violet-glow);
}

.lens-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--cyan-dim);
  animation: lensPulse 4s ease-in-out infinite;
}

.lens-ring--1 { width: 28px; height: 28px; animation-delay: 0s; }
.lens-ring--2 { width: 38px; height: 38px; animation-delay: 0.5s; opacity: 0.6; }
.lens-ring--3 { width: 48px; height: 48px; animation-delay: 1s; opacity: 0.3; }

@keyframes lensPulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.05); opacity: 1; }
}

.radial-menu {
  position: absolute;
  top: 24px;
  width: 280px;
  height: 280px;
  pointer-events: none;
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.radial-menu:not([hidden]) {
  pointer-events: auto;
  opacity: 1;
  transform: scale(1);
}

.radial-menu__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--cyan-dim);
  background: radial-gradient(circle, rgba(11, 15, 26, 0.9) 30%, rgba(11, 15, 26, 0.4) 70%);
  backdrop-filter: blur(12px);
  animation: radialRingSpin 60s linear infinite;
}

.radial-menu__ring::before,
.radial-menu__ring::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--cyan-dim);
  opacity: 0.3;
}

.radial-menu__ring::before { inset: 20px; }
.radial-menu__ring::after { inset: 50px; opacity: 0.15; }

@keyframes radialRingSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.radial-menu__list {
  list-style: none;
  position: absolute;
  inset: 0;
}

.radial-menu__item {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: rotate(calc(var(--angle) * 1deg)) translateY(-110px) rotate(calc(var(--angle) * -1deg));
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.radial-menu:not([hidden]) .radial-menu__item {
  opacity: 1;
}

.radial-menu__item:nth-child(1) { transition-delay: 0.05s; }
.radial-menu__item:nth-child(2) { transition-delay: 0.1s; }
.radial-menu__item:nth-child(3) { transition-delay: 0.15s; }
.radial-menu__item:nth-child(4) { transition-delay: 0.2s; }
.radial-menu__item:nth-child(5) { transition-delay: 0.25s; }
.radial-menu__item:nth-child(6) { transition-delay: 0.3s; }

.radial-menu__item[data-angle="270"] { --angle: 270; }
.radial-menu__item[data-angle="330"] { --angle: 330; }
.radial-menu__item[data-angle="30"]  { --angle: 30; }
.radial-menu__item[data-angle="90"]  { --angle: 90; }
.radial-menu__item[data-angle="150"] { --angle: 150; }
.radial-menu__item[data-angle="210"] { --angle: 210; }

.radial-menu__list a {
  display: block;
  padding: 0.4rem 0.75rem;
  font-family: var(--font-heading);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-primary);
  text-decoration: none;
  text-align: center;
  border: 1px solid var(--cyan-dim);
  background: rgba(11, 15, 26, 0.8);
  transition: all 0.3s ease;
  white-space: nowrap;
}

.radial-menu__list a::before {
  content: '◆ ';
  color: var(--predictive-cyan);
  font-size: 0.45rem;
}

.radial-menu__list a:hover {
  border-color: var(--predictive-cyan);
  color: var(--predictive-cyan);
  box-shadow: 0 0 15px var(--cyan-dim);
  transform: scale(1.08);
}

/* ---- Contact Interface ---- */
.contact-interface {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5, 7, 13, 0.85);
  backdrop-filter: blur(8px);
  border: none;
  padding: 1.5rem;
  max-width: none;
  max-height: none;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.contact-interface[open] {
  opacity: 1;
}

.contact-interface::backdrop {
  background: rgba(5, 7, 13, 0.7);
}

.contact-interface__frame {
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--cyan-dim);
  background: rgba(11, 15, 26, 0.95);
  padding: 1.5rem;
  position: relative;
}

.contact-interface__frame::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--predictive-cyan), transparent);
  animation: contactScan 3s linear infinite;
}

@keyframes contactScan {
  0% { opacity: 0.3; }
  50% { opacity: 1; }
  100% { opacity: 0.3; }
}

.contact-interface__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--cyan-dim);
}

.contact-interface__label {
  font-family: var(--font-heading);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--predictive-cyan);
}

.contact-interface__close {
  background: none;
  border: 1px solid var(--cyan-dim);
  color: var(--text-primary);
  width: 28px;
  height: 28px;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  transition: all 0.3s ease;
}

.contact-interface__close:hover {
  border-color: var(--predictive-cyan);
  color: var(--predictive-cyan);
}

.contact-field {
  margin-bottom: 1rem;
}

.contact-field__label {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  opacity: 0.5;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.contact-field__input {
  width: 100%;
  background: rgba(5, 7, 13, 0.8);
  border: 1px solid var(--cyan-dim);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 0.65rem 0.75rem;
  outline: none;
  transition: border-color 0.3s ease;
}

.contact-field__input:focus {
  border-color: var(--predictive-cyan);
  box-shadow: 0 0 12px var(--cyan-dim);
}

.contact-field__input--area {
  resize: vertical;
  min-height: 80px;
}

.contact-transmit {
  width: 100%;
  padding: 0.75rem;
  background: transparent;
  border: 1px solid var(--predictive-cyan);
  cursor: pointer;
  transition: all 0.4s ease;
  margin-top: 0.5rem;
}

.contact-transmit:hover {
  background: var(--cyan-dim);
  box-shadow: 0 0 20px var(--cyan-dim);
}

.contact-transmit__text {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--predictive-cyan);
}

.contact-interface__status {
  margin-top: 1rem;
  font-size: 0.7rem;
  color: var(--forecast-violet);
  text-align: center;
  min-height: 1.2em;
  letter-spacing: 0.1em;
}

/* ---- Sections Base ---- */
.section {
  position: relative;
  min-height: var(--section-min-h-mobile);
  overflow: hidden;
  background: var(--bg-deep);
}

@media (min-width: 768px) {
  .section { min-height: var(--section-min-h); }
}

.section-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.section-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.section-overlay--minimal {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 2rem;
}

.data-label {
  font-family: var(--font-heading);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--predictive-cyan);
  opacity: 0.5;
  text-transform: uppercase;
}

/* ---- Section 1: Probability Field ---- */
.section--field {
  background: radial-gradient(ellipse at center, var(--void-black) 0%, var(--bg-deep) 100%);
}

/* ---- Section 2: Forecast Stream ---- */
.section--stream {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--void-black) 50%, var(--bg-deep) 100%);
}

.stream-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 1rem;
  width: 100%;
  max-width: 1200px;
  height: 80vh;
  padding: 2rem 1rem;
  overflow: hidden;
  mask-image: linear-gradient(180deg, transparent 0%, black 10%, black 90%, transparent 100%);
}

.stream-column {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  animation: streamFlow linear infinite;
}

.stream-column--left { animation-duration: 28s; }
.stream-column--center { animation-duration: 22s; animation-direction: reverse; }
.stream-column--right { animation-duration: 32s; }

.stream-container.paused .stream-column {
  animation-play-state: paused;
}

@keyframes streamFlow {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

.stream-fragment {
  padding: 0.75rem 1rem;
  border-left: 2px solid var(--cyan-dim);
  background: rgba(11, 15, 26, 0.6);
  cursor: pointer;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.stream-fragment:hover {
  border-left-color: var(--predictive-cyan);
  background: rgba(110, 231, 255, 0.05);
  box-shadow: 0 0 20px var(--cyan-dim);
}

.stream-fragment__type {
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--forecast-violet);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.stream-fragment__text {
  font-size: 0.75rem;
  color: var(--text-primary);
  opacity: 0.8;
  line-height: 1.4;
}

.stream-fragment__prob {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  color: var(--predictive-cyan);
  margin-top: 0.35rem;
  opacity: 0.6;
}

.stream-pause-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.stream-pause-indicator.active {
  opacity: 1;
}

.pause-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: var(--predictive-cyan);
  margin-bottom: 0.5rem;
}

.pause-path {
  font-size: 0.7rem;
  color: var(--text-primary);
  opacity: 0.7;
}

/* ---- Section 3: Timeline Brancher ---- */
.section--timeline {
  background: var(--void-black);
}

.timeline-controls {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  right: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  z-index: 3;
  pointer-events: none;
}

.timeline-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.legend-item {
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--cyan-dim);
  color: var(--text-primary);
  opacity: 0.5;
  cursor: pointer;
  pointer-events: auto;
  transition: all 0.3s ease;
}

.legend-item:hover,
.legend-item.active {
  opacity: 1;
  border-color: var(--predictive-cyan);
  color: var(--predictive-cyan);
}

.legend-item[data-branch="economic"] { border-color: rgba(110, 231, 255, 0.3); }
.legend-item[data-branch="social"] { border-color: rgba(167, 139, 250, 0.3); }
.legend-item[data-branch="technological"] { border-color: rgba(52, 211, 153, 0.3); }
.legend-item[data-branch="environmental"] { border-color: rgba(251, 191, 36, 0.3); }

.timeline-depth {
  text-align: right;
}

.depth-label {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--predictive-cyan);
  opacity: 0.5;
}

.depth-value {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--forecast-violet);
}

.branch-detail {
  position: absolute;
  top: 50%;
  right: 2rem;
  transform: translateY(-50%);
  max-width: 280px;
  padding: 1.5rem;
  background: rgba(11, 15, 26, 0.9);
  border: 1px solid var(--violet-dim);
  z-index: 4;
  backdrop-filter: blur(8px);
}

.branch-detail__title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  color: var(--predictive-cyan);
  margin-bottom: 0.5rem;
}

.branch-detail__desc {
  font-size: 0.75rem;
  opacity: 0.7;
  line-height: 1.6;
}

/* ---- Section 4: Scenario Matrix ---- */
.section--matrix {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 50%, var(--void-black) 0%, var(--bg-deep) 70%);
  padding: 3rem 1rem;
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
  width: 100%;
  max-width: 1100px;
  perspective: 1000px;
}

.matrix-frame {
  aspect-ratio: 4/3;
  background: rgba(11, 15, 26, 0.7);
  border: 1px solid var(--cyan-dim);
  padding: 1rem;
  cursor: pointer;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.matrix-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--cyan-dim) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.matrix-frame:hover {
  transform: scale(1.08) translateZ(20px);
  border-color: var(--predictive-cyan);
  z-index: 2;
}

.matrix-frame:hover::before { opacity: 1; }

.matrix-frame.collapsed {
  transform: scale(0.6);
  opacity: 0.3;
}

.matrix-frame.expanded {
  grid-column: span 2;
  grid-row: span 2;
  transform: scale(1);
  border-color: var(--forecast-violet);
}

.matrix-frame__id {
  font-size: 0.5rem;
  letter-spacing: 0.15em;
  color: var(--predictive-cyan);
  opacity: 0.5;
}

.matrix-frame__state {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  margin-top: 0.5rem;
  color: var(--text-primary);
}

.matrix-frame__prob {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  font-size: 0.6rem;
  color: var(--forecast-violet);
}

.matrix-status {
  position: absolute;
  top: 2rem;
  left: 2rem;
}

/* ---- Section 5: Signal Corridor ---- */
.section--corridor {
  background: linear-gradient(90deg, var(--bg-deep) 0%, var(--void-black) 50%, var(--bg-deep) 100%);
}

.corridor-hud {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  right: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  z-index: 3;
}

.signal-types {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.signal-type {
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--cyan-dim);
  opacity: 0.4;
  transition: all 0.3s ease;
}

.signal-type.active {
  opacity: 1;
  border-color: var(--predictive-cyan);
  color: var(--predictive-cyan);
  box-shadow: 0 0 15px var(--cyan-dim);
}

.corridor-position {
  width: 200px;
}

.position-label {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--predictive-cyan);
  opacity: 0.5;
  margin-bottom: 0.35rem;
}

.position-bar {
  height: 2px;
  background: var(--cyan-dim);
  position: relative;
}

.position-fill {
  height: 100%;
  background: var(--predictive-cyan);
  width: 0%;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px var(--cyan-glow);
}

/* ---- Section 6: Prediction Core ---- */
.section--core {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(167, 139, 250, 0.05) 0%, var(--bg-deep) 60%);
}

.core-container {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.core-layers {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 3rem;
  z-index: 3;
}

.core-layer {
  text-align: center;
}

.layer-label {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--predictive-cyan);
  opacity: 0.5;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.layer-value {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--forecast-violet);
}

/* ---- Section 7: Outcome Lab ---- */
.section--lab {
  background: var(--void-black);
  padding: 3rem 1.5rem;
  position: relative;
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.lab-experiment {
  border: 1px solid var(--cyan-dim);
  padding: 1.25rem;
  background: rgba(5, 7, 13, 0.8);
  position: relative;
  transition: border-color 0.4s ease;
}

.lab-experiment:hover {
  border-color: var(--forecast-violet);
}

.lab-experiment__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--cyan-dim);
}

.lab-experiment__id {
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--predictive-cyan);
}

.lab-experiment__status {
  font-size: 0.5rem;
  letter-spacing: 0.1em;
  color: var(--forecast-violet);
  animation: statusBlink 2s ease-in-out infinite;
}

@keyframes statusBlink {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.lab-field {
  margin-bottom: 0.75rem;
}

.lab-field__label {
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  opacity: 0.4;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}

.lab-field__value {
  font-size: 0.8rem;
  color: var(--text-primary);
}

.lab-field__value--result {
  color: var(--predictive-cyan);
  font-family: var(--font-heading);
}

.lab-scanline {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(110, 231, 255, 0.02) 2px,
    rgba(110, 231, 255, 0.02) 4px
  );
  pointer-events: none;
  animation: scanMove 8s linear infinite;
}

@keyframes scanMove {
  0% { transform: translateY(0); }
  100% { transform: translateY(100px); }
}

/* ---- Section 8: Future Map ---- */
.section--map {
  background: var(--bg-deep);
}

.map-hud {
  position: absolute;
  top: 2rem;
  left: 2rem;
  z-index: 3;
}

.map-region {
  margin-bottom: 1rem;
}

.region-label {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--predictive-cyan);
  opacity: 0.5;
}

.region-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text-primary);
}

.influence-label {
  display: block;
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--forecast-violet);
  opacity: 0.5;
}

.influence-count {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--predictive-cyan);
}

/* ---- Section 9: Uncertainty Zone ---- */
.section--uncertainty {
  background: var(--void-black);
}

.uncertainty-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.uncertainty-field--blur {
  position: absolute;
  width: 30%;
  height: 40%;
  top: 20%;
  left: 10%;
  background: radial-gradient(ellipse, rgba(167, 139, 250, 0.1) 0%, transparent 70%);
  filter: blur(40px);
  animation: uncertaintyDrift 12s ease-in-out infinite;
}

.uncertainty-field--flicker {
  position: absolute;
  width: 25%;
  height: 35%;
  bottom: 15%;
  right: 15%;
  background: radial-gradient(ellipse, rgba(110, 231, 255, 0.08) 0%, transparent 70%);
  animation: uncertaintyFlicker 3s ease-in-out infinite;
}

@keyframes uncertaintyDrift {
  0%, 100% { transform: translate(0, 0); opacity: 0.5; }
  50% { transform: translate(50px, -30px); opacity: 0.8; }
}

@keyframes uncertaintyFlicker {
  0%, 100% { opacity: 0.2; filter: blur(30px); }
  25% { opacity: 0.9; filter: blur(10px); }
  50% { opacity: 0.3; filter: blur(50px); }
  75% { opacity: 0.7; filter: blur(20px); }
}

.uncertainty-predictions {
  position: absolute;
  inset: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 3rem;
}

.uncertainty-pred {
  font-family: var(--font-heading);
  font-size: clamp(0.7rem, 2vw, 1rem);
  color: var(--text-primary);
  opacity: 0;
  animation: predFade var(--fade-duration, 4s) ease-in-out infinite;
  animation-delay: var(--fade-delay, 0s);
  text-align: center;
  max-width: 200px;
}

@keyframes predFade {
  0%, 100% { opacity: 0; transform: scale(0.95); filter: blur(4px); }
  30%, 70% { opacity: var(--fade-peak, 0.7); transform: scale(1); filter: blur(0); }
}

/* ---- Section 10: Final Projection ---- */
.section--projection {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at center, rgba(11, 15, 26, 0.5) 0%, var(--bg-deep) 70%);
  min-height: 100vh;
}

.projection-container {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.projection-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 2rem;
}

.projection-title {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 4vw, 2rem);
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 3rem;
  line-height: 1.4;
  max-width: 600px;
}

.enter-arvio {
  position: relative;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 1px solid var(--cyan-dim);
  background: rgba(11, 15, 26, 0.6);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.enter-arvio:hover {
  border-color: var(--predictive-cyan);
  box-shadow: 0 0 40px var(--cyan-glow), 0 0 80px var(--violet-dim);
  transform: scale(1.05);
}

.enter-arvio__ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--predictive-cyan);
  opacity: 0.3;
  animation: enterRing 3s ease-in-out infinite;
}

.enter-arvio__ring { width: 120px; height: 120px; }
.enter-arvio__ring--2 { width: 140px; height: 140px; animation-delay: 0.5s; opacity: 0.15; }

@keyframes enterRing {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.1); opacity: 0.6; }
}

.enter-arvio__text {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--predictive-cyan);
  z-index: 1;
}

.probability-waves {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

.prob-wave {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--predictive-cyan);
  opacity: 0;
  animation: waveExpand 2s ease-out forwards;
}

@keyframes waveExpand {
  0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0.6; }
  100% { transform: translate(-50%, -50%) scale(3); opacity: 0; }
}

/* ---- Footer ---- */
.site-footer {
  padding: 1.5rem 2rem;
  text-align: center;
  border-top: 1px solid var(--cyan-dim);
}

.footer-signal {
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--predictive-cyan);
  opacity: 0.3;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .stream-container {
    grid-template-columns: 1fr;
    height: 70vh;
  }

  .stream-column--left,
  .stream-column--right {
    display: none;
  }

  .core-layers {
    flex-direction: column;
    gap: 1rem;
    bottom: 2rem;
  }

  .timeline-controls {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .branch-detail {
    right: 1rem;
    left: 1rem;
    max-width: none;
    top: auto;
    bottom: 8rem;
    transform: none;
  }

  .corridor-hud {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .radial-menu {
    width: 240px;
    height: 240px;
  }

  .radial-menu__item {
    transform: rotate(calc(var(--angle) * 1deg)) translateY(-90px) rotate(calc(var(--angle) * -1deg));
  }

  .radial-menu__list a {
    font-size: 0.5rem;
    padding: 0.3rem 0.5rem;
  }

  .matrix-frame.expanded {
    grid-column: span 1;
    grid-row: span 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .stream-column { animation: none; }
}