/* ============================================================
   layout.css — page chrome: header, nav, sections shell, footer.
   ============================================================ */

/* ------------------------------------------------------------------
   Section flags (see spec §1.1)
   Written out explicitly, one block per section. Do not generate.
   ------------------------------------------------------------------ */
html[data-section-hero="off"]      #hero,
html[data-section-hero="off"]      [data-nav="hero"]      { display: none; }

html[data-section-listening="off"] #listening,
html[data-section-listening="off"] [data-nav="listening"] { display: none; }

html[data-section-gigs="off"]      #gigs,
html[data-section-gigs="off"]      [data-nav="gigs"]      { display: none; }

html[data-section-booking="off"]   #booking,
html[data-section-booking="off"]   [data-nav="booking"],
html[data-section-booking="off"]   .press-contact-cta     { display: none; }

html[data-section-press="off"]     #press,
html[data-section-press="off"]     [data-nav="press"]     { display: none; }

html[data-section-members="off"]   #members,
html[data-section-members="off"]   [data-nav="members"]   { display: none; }

/* ------------------------------------------------------------------
   Containers and the one grid
   ------------------------------------------------------------------ */

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* All section spacing lives here and is never overridden per section. */
.section {
  position: relative;
  padding-block: clamp(5rem, 12vh, 9rem);
  scroll-margin-top: var(--header-h);
}

/* A barely-there scanline wash. 2% opacity, never interactive. */
.section::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.022) 0 1px,
    transparent 1px 3px
  );
  z-index: 0;
}

.section > * { position: relative; z-index: 1; }

/* Header block shared by every section: sticker eyebrow + neon heading. */
.section-head { margin-bottom: var(--sp-6); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #000;
  background: var(--accent);
  padding: 0.3em 0.7em;
  margin-bottom: var(--sp-3);
  transform: rotate(-2deg);
  box-shadow: 4px 4px 0 #000;
  border: 2px solid #000;
}

.section-lede {
  margin-top: var(--sp-3);
  color: var(--text-muted);
  max-width: 55ch;
}

/* ------------------------------------------------------------------
   The neon-tube heading treatment — the signature (spec §8.3)
   Concentric outline strokes over black, in the live accent colour.
   ------------------------------------------------------------------ */

.neon {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 0.92;
  color: #0A0A0F;
  -webkit-text-stroke: 2px var(--accent);
  text-shadow:
    0 0 2px color-mix(in srgb, var(--accent) 90%, white),
    0 0 12px color-mix(in srgb, var(--accent) 60%, transparent),
    0 0 34px color-mix(in srgb, var(--accent) 34%, transparent);
  position: relative;
}

/* The inner tube: a second, thinner stroke sitting inside the first. */
.neon::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  color: transparent;
  -webkit-text-stroke: 0.5px color-mix(in srgb, var(--accent) 55%, white);
  pointer-events: none;
}

.neon--display { font-size: var(--fs-display); }

/* ------------------------------------------------------------------
   Header
   ------------------------------------------------------------------ */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
}

/* The blur lives on a pseudo-element, not on .site-header itself.
   `backdrop-filter` makes an element the containing block for any
   position:fixed descendant — with it on the header, the mobile nav
   panel sized itself against the 68px header instead of the viewport
   and only the first link was reachable. */
.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: var(--accent);
  transition: background 250ms linear;
}

/* HERO carries the whole spectrum, so the hairline does too. */
html[data-current="hero"] .site-header::after {
  background: linear-gradient(90deg,
    var(--neon-red), var(--neon-orange), var(--neon-yellow), var(--neon-green),
    var(--neon-cyan), var(--neon-blue), var(--neon-magenta), var(--neon-pink));
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  min-height: 68px;
  padding-block: 0.75rem;
}

.brand { display: block; line-height: 0; }
.brand img { width: 132px; height: auto; }

/* ------------------------------------------------------------------
   Navigation
   ------------------------------------------------------------------ */

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.4vw, 2rem);
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-muted);
  padding-block: 0.5rem;
  position: relative;
  transition: color 180ms ease;
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 200ms ease;
}

.nav__link:hover { color: var(--text); }
.nav__link.is-current { color: var(--text); }
.nav__link.is-current::after,
.nav__link:hover::after { transform: scaleX(1); }

/* Hamburger */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 120;
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  transition: transform 220ms ease, opacity 160ms ease;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: '';
  position: absolute;
  left: 10px;
}
.nav-toggle__bars::before { transform: translateY(-7px); }
.nav-toggle__bars::after  { transform: translateY(7px); }

html.nav-open .nav-toggle__bars { background: transparent; }
html.nav-open .nav-toggle__bars::before { transform: rotate(45deg); }
html.nav-open .nav-toggle__bars::after  { transform: rotate(-45deg); }

.nav-scrim {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  z-index: 90;
}

html.nav-open .nav-scrim { opacity: 1; pointer-events: auto; }

@media (max-width: 767px) {
  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(360px, 85vw);
    background: #050508;
    border-left: 2px solid var(--accent);
    padding: calc(var(--header-h) + var(--sp-4)) var(--sp-4) var(--sp-4);
    transform: translateX(100%);
    transition: transform 260ms cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 110;
    overflow-y: auto;
  }

  html.nav-open .site-nav { transform: translateX(0); }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-2);
  }

  .nav__link {
    font-size: 1.125rem;
    padding-block: 0.75rem;
    width: 100%;
  }
}

/* ------------------------------------------------------------------
   Buttons
   ------------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
  background: var(--surface);
  border: 2px solid var(--accent);
  padding: 0.9em 1.4em;
  min-height: 48px;
  box-shadow: 4px 4px 0 var(--accent);
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.btn:hover { background: var(--surface-2); }

.btn:active {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 var(--accent);
}

/* ------------------------------------------------------------------
   Footer
   ------------------------------------------------------------------ */

.site-footer {
  border-top: 1px solid var(--hairline);
  padding-block: var(--sp-6);
  background: var(--bg);
  position: relative;
  z-index: 1;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}

.socials {
  display: flex;
  gap: var(--sp-2);
  align-items: center;
}

.social {
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  border: 1px solid var(--hairline);
  color: var(--text-muted);
  transition: color 160ms ease, border-color 160ms ease;
}

.social svg { width: 20px; height: 20px; fill: currentColor; }

.social:hover { color: var(--accent); border-color: var(--accent); }

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1) var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
}

.footer-contact a {
  text-decoration: none;
  border-bottom: 1px solid var(--hairline);
  padding-block: 0.25rem;
}

.footer-contact a:hover { border-bottom-color: var(--accent); color: var(--accent); }

.footer-legal {
  width: 100%;
  color: var(--text-muted);
  font-size: var(--fs-small);
  font-family: var(--font-mono);
}

/* ------------------------------------------------------------------
   Scroll progress rail (progressive enhancement)
   ------------------------------------------------------------------ */

.scroll-rail {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 100%;
  transform-origin: left;
  transform: scaleX(0);
  background: var(--accent);
  z-index: 101;
  pointer-events: none;
}

@supports (animation-timeline: scroll()) {
  .scroll-rail {
    animation: rail-grow linear both;
    animation-timeline: scroll(root block);
  }
}

@keyframes rail-grow {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

/* ------------------------------------------------------------------
   Breakpoints — mobile-first additions
   ------------------------------------------------------------------ */

@media (min-width: 768px) {
  .site-nav { display: block !important; }
}