/* ============================================
   FESTIVALS CASE STUDY — Styles
   Dark, minimal, typographic
   ============================================ */


/* ── NAV ──────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-4) var(--space-8);
  background: linear-gradient(to bottom, rgba(10,10,10,0.85) 0%, transparent 100%);
  backdrop-filter: blur(0px);
  transition: background 0.4s ease, backdrop-filter 0.4s ease;
}

.site-nav.scrolled {
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
}

.nav-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav-back {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive);
}

.nav-back:hover {
  color: var(--color-text);
  opacity: 1;
}

.nav-title {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}


/* ── HERO ─────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--space-16);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg picture {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(10,10,10,0.9) 0%, rgba(10,10,10,0.28) 52%, transparent 100%),
    linear-gradient(to right, rgba(10,10,10,0.58) 0%, transparent 62%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--content-wide);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

.hero-eyebrow {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.68);
  margin-bottom: var(--space-2);
  letter-spacing: 0.04em;
}

.hero-title {
  font-size: clamp(2.5rem, 1rem + 5vw, 4.5rem);
  color: #ffffff;
  line-height: 1.05;
  margin-bottom: var(--space-4);
  max-width: 12ch;
}

.hero-desc {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.78);
  margin-bottom: var(--space-6);
  max-width: 56ch;
  line-height: 1.6;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.56);
}

.hero-scroll-cue {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: rgba(255,255,255,0.35);
  animation: bounce-down 2s ease-in-out infinite;
  transition: color var(--transition-interactive);
}

.hero-scroll-cue:hover {
  color: rgba(255,255,255,0.7);
  opacity: 1;
}

@keyframes bounce-down {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}


/* ── INTRO ────────────────────────────────── */
.case-intro {
  background: var(--color-bg);
  padding: clamp(var(--space-8), 4vw, var(--space-12)) var(--space-8);
  border-top: 1px solid var(--color-border);
}

.intro-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}

.intro-lead {
  font-size: clamp(1.1rem, 0.98rem + 0.35vw, 1.35rem);
  line-height: 1.45;
  color: var(--color-text);
  max-width: 64ch;
}


/* ── QUICK FACTS ──────────────────────────── */
.quick-facts {
  background: var(--color-bg);
  padding: 0 var(--space-8) clamp(var(--space-8), 4vw, var(--space-12));
}

.qf-grid {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.qf-card {
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.qf-card-label {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.2;
}

.qf-card-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.qf-card-body p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: none;
}


/* ── PROJECT BLOCKS ───────────────────────── */

.section-title {
  font-size: var(--text-xl);
  color: var(--color-text);
  width: 100%;
  max-width: 100%;
  margin: 0 0 var(--space-8);
}

.project-block {
  background: var(--color-bg);
  padding: clamp(var(--space-12), 6vw, var(--space-16)) var(--space-8) 0;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-14));
}

.project-block-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}

.project-copy {
  max-width: var(--content-wide);
}

.project-text {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.65;
  max-width: 88ch;
  margin-bottom: var(--space-4);
}

.project-text:last-child {
  margin-bottom: 0;
}


/* ── VIDEO SECTION ────────────────────────── */
.video-section {
  background: var(--color-bg);
  padding: var(--space-8) var(--space-8) 0;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-14));
}

.video-wrapper {
  max-width: var(--content-wide);
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16 / 9;
}

.project-video {
  width: 100%;
  height: 100%;
  display: block;
  background: #000;
}


/* ── DIVIDER AFTER VIDEO ──────────────────── */
.video-section::after {
  content: "";
  display: block;
  max-width: var(--content-wide);
  height: 1px;
  margin: clamp(var(--space-12), 6vw, var(--space-16)) auto 0;
  background: var(--color-border);
}

/* ── SCOPE ────────────────────────────────── */
.scope-section {
  background: var(--color-bg);
  padding: clamp(var(--space-12), 6vw, var(--space-16)) var(--space-8) clamp(var(--space-16), 8vw, var(--space-20));
}

.scope-header {
  max-width: var(--content-wide);
  margin: 0 auto var(--space-8);
}

.scope-card {
  max-width: var(--content-wide);
  margin: 0 auto;
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.scope-list {
  list-style: none;
  display: grid;
  gap: var(--space-5);
  margin: 0;
  padding: 0;
}

.scope-list > li {
  position: relative;
  padding-left: var(--space-5);
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-text-muted);
  max-width: 96ch;
}

.scope-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 1px;
  background: var(--color-text-faint);
}

.scope-list strong {
  display: block;
  font-size: var(--text-base);
  line-height: 1.35;
  color: var(--color-text);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.scope-list > li > p {
  margin: 0;
  max-width: 88ch;
  color: var(--color-text-muted);
}

.scope-sublist {
  margin: var(--space-2) 0 0;
  padding-left: var(--space-5);
  list-style: disc;
  display: grid;
  gap: var(--space-2);
}

.scope-sublist li {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.55;
  max-width: 88ch;
}

.scope-sublist li::marker {
  color: var(--color-text-faint);
}

/* ── FOOTER ───────────────────────────────── */
.site-footer {
  padding: var(--space-8);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.footer-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-label {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  max-width: none;
}

.footer-nav {
  display: flex;
  gap: var(--space-6);
}

.footer-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
}

.footer-nav a:hover {
  color: var(--color-text-muted);
  opacity: 1;
}


/* ── REVEAL HELPERS ───────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}

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

.reveal-delay-1 {
  transition-delay: 0.12s;
}


/* ══════════════════════════════════════
   RESPONSIVE — TABLET ≤ 900px
══════════════════════════════════════ */
@media (max-width: 900px) {
  .qf-grid {
    grid-template-columns: 1fr;
  }

  .project-copy {
    max-width: 100%;
  }

  .project-text,
  .intro-lead {
    max-width: 100%;
  }
}


/* ══════════════════════════════════════
   RESPONSIVE — MOBILE ≤ 600px
══════════════════════════════════════ */
@media (max-width: 600px) {
  .site-nav,
  .case-intro,
  .quick-facts,
  .project-block,
  .video-section,
  .scope-section,
  .site-footer {
    padding-left: var(--space-5);
    padding-right: var(--space-5);
  }

  .hero-content {
    padding-left: var(--space-5);
    padding-right: var(--space-5);
  }

  .hero {
    min-height: 92svh;
    padding-bottom: var(--space-12);
  }

  .hero-title {
    font-size: clamp(2rem, 8vw, 3rem);
    max-width: 10ch;
  }

  .hero-desc {
    max-width: 100%;
  }

  .section-title {
    font-size: var(--text-xl);
  }

  .video-wrapper {
    border-radius: var(--radius-md);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}