/* Night Shift: cinematic layer on top of the night-drive world. Imported last. */

:root {
  --ns-grain: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)' opacity='.55'/></svg>");
}

/* Film stock: grain + vignette above the world, below the UI. */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: var(--z-atmosphere);
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% 45%, transparent 55%, rgb(2 4 12 / 55%) 100%),
    var(--ns-grain);
  background-size: auto, 160px 160px;
  mix-blend-mode: soft-light;
  opacity: 0.5;
}

/* Operations strip */
.ops-strip {
  position: fixed;
  inset-block-end: 22px;
  inset-inline: 0;
  margin-inline: auto;
  width: max-content;
  max-width: calc(100vw - 32px);
  z-index: var(--z-hud);
  display: none;
  align-items: center;
  gap: 0.7rem;
  padding: 0.5rem 1rem;
  border: var(--panel-border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-muted);
  font: 500 0.72rem/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  pointer-events: none;
}
.ops-strip__item::before { content: attr(data-label) ' '; }
.ops-strip__item::after { content: attr(data-value); color: var(--text); font-weight: 600; }
.ops-strip__sep { opacity: 0.4; }
.ops-strip__sep::before { content: '/'; }
.ops-strip__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #6ee7a8;
  box-shadow: 0 0 10px #6ee7a8;
}
@media (min-width: 1100px) {
  .ops-strip { display: inline-flex; }
}
@media (prefers-reduced-motion: no-preference) {
  .ops-strip__dot { animation: ns-pulse 2.4s ease-in-out infinite; }
}
@keyframes ns-pulse { 50% { opacity: 0.35; } }

/* Boot sequence */
.boot-sequence {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 2rem;
  padding: clamp(1.5rem, 8vw, 8rem);
  background: #02040c;
  color: var(--accent);
  font: 500 clamp(0.8rem, 0.7rem + 0.5vw, 1.05rem)/1.8 var(--mono);
  cursor: pointer;
  transition: opacity 600ms ease, filter 600ms ease;
}
.boot-sequence[data-leaving] { opacity: 0; filter: blur(6px); pointer-events: none; }
.boot-sequence__log { list-style: none; margin: 0; padding: 0; }
.boot-sequence__log li::before { content: '> '; color: var(--world-magenta); }
.boot-sequence__log li:last-child::after {
  content: '_';
  margin-inline-start: 0.2em;
  animation: ns-blink 700ms steps(1) infinite;
}
.boot-sequence__skip { color: var(--text-muted); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; }
@keyframes ns-blink { 50% { opacity: 0; } }

/* Headlight: soft beam that follows a fine pointer. */
html[data-headlight='on'] .reading-viewport::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(420px circle at var(--hx, 50%) var(--hy, 50%), rgb(255 214 147 / 10%), transparent 70%);
  mix-blend-mode: screen;
}

/* Spotlight borders on interactive surfaces. */
.project-case-study,
.project-card,
.contact-destination,
.infrastructure-flow-figure {
  position: relative;
  isolation: isolate;
}
html[data-headlight='on'] :is(.project-case-study, .project-card, .contact-destination, .infrastructure-flow-figure)::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgb(120 216 229 / 14%), transparent 65%);
  opacity: 0;
  transition: opacity 240ms ease;
}
html[data-headlight='on'] :is(.project-case-study, .project-card, .contact-destination, .infrastructure-flow-figure):hover::after {
  opacity: 1;
}

/* Chapter numerals: outlined, drifting section numbers. */
.reading-stage { counter-reset: chapter; }
.portfolio-section > h2,
.project-stage__lead > h2 { position: relative; }
.portfolio-section { counter-increment: chapter; }
.portfolio-section > h2::before,
.project-stage__lead > h2::before {
  content: '0' counter(chapter) / '';
  position: absolute;
  inset-block-start: 50%;
  inset-inline-end: 0;
  translate: 0 -50%;
  font: 700 var(--step-4)/0.85 var(--mono);
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgb(120 216 229 / 38%);
  pointer-events: none;
  user-select: none;
}
@media (max-width: 720px) {
  .portfolio-section > h2::before,
  .project-stage__lead > h2::before { font-size: var(--step-3); }
}
@media (forced-colors: active) {
  .portfolio-section > h2::before,
  .project-stage__lead > h2::before,
  body::after,
  .reading-viewport::before,
  :is(.project-case-study, .project-card, .contact-destination, .infrastructure-flow-figure)::after { display: none !important; }
}

/* Kinetic type + scroll-linked reveals (progressive enhancement). */
@media (prefers-reduced-motion: no-preference) {
  .hero-name__text {
    font-variation-settings: 'wght' 800;
    transition: font-variation-settings 400ms ease, letter-spacing 400ms ease;
  }
  .hero-name:hover .hero-name__text {
    font-variation-settings: 'wght' 520;
    letter-spacing: 0.02em;
  }
  @supports (animation-timeline: view()) {
    .reading-stage:not([data-reading-stage='live']) .project-card {
      animation: ns-rise linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 40%;
    }
  }
}
@keyframes ns-rise {
  from { transform: translateY(28px); }
  to { transform: none; }
}

@media print {
  body::after, .ops-strip, .boot-sequence { display: none !important; }
  .portfolio-section > h2::before,
  .project-stage__lead > h2::before,
  .reading-viewport::before,
  :is(.project-case-study, .project-card, .contact-destination, .infrastructure-flow-figure)::after { display: none !important; }
}