/* ═══════════════════════════════════════════════════
   filmstrip.css v2
   Layout: [left strips] [centre text] [right strips]
   ═══════════════════════════════════════════════════ */

/* ── Main 3-column layout ─────────────────────────── */
.fs-layout {
  position: relative;
  z-index: 5;
  width: 100%;
  min-height: 90vh;
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  justify-content: center;
  gap: clamp(10px, 1.5vw, 22px);
  padding: 1.5rem 0.75rem;
}

/* Strip groups */
.fs-group {
  display: flex;
  flex-direction: row;
  gap: clamp(8px, 1vw, 16px);
  flex-shrink: 0;
  align-items: flex-start;
}

/* Top+bottom mask so strips fade into page background */
.fs-group {
  -webkit-mask-image: linear-gradient(
    to bottom, transparent 0%, black 5%, black 95%, transparent 100%
  );
  mask-image: linear-gradient(
    to bottom, transparent 0%, black 5%, black 95%, transparent 100%
  );
}

/* ── Centre column ────────────────────────────────── */
.fs-centre {
  flex: 1;
  min-width: 220px;
  max-width: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 0.5rem;
  align-self: center;
  position: sticky;
  top: 20vh;
}

.fs-centre-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

/* ── Note (handwritten style) ─────────────────────── */
.fs-note {
  font-family: var(--font-display, 'Cormorant Garamond', Georgia, serif);
  font-style: italic;
  font-size: clamp(0.9rem, 1.4vw, 1.1rem);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.82);
  letter-spacing: 0.01em;
  position: relative;
  padding: 1.25rem 1rem;
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.07);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  max-width: 360px;
}

.fs-note::before {
  content: '"';
  position: absolute;
  top: -0.6rem;
  left: 0.75rem;
  font-size: 3.5rem;
  color: var(--accent, #67e8f9);
  opacity: 0.25;
  font-style: normal;
  line-height: 1;
}

/* ── Quote ────────────────────────────────────────── */
.fs-quote {
  border: none;
  margin: 0;
  padding: 1rem 1.25rem;
  background: rgba(255,255,255,0.03);
  border-left: 2px solid var(--accent, #67e8f9);
  border-radius: 0 10px 10px 0;
  max-width: 340px;
}

.fs-quote-text {
  font-family: var(--font-display, 'Cormorant Garamond', Georgia, serif);
  font-style: italic;
  font-size: clamp(0.85rem, 1.2vw, 1rem);
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin: 0 0 0.5rem;
  max-width: 100%;
}

.fs-quote-author {
  font-size: 0.78rem;
  color: var(--accent, #67e8f9);
  opacity: 0.7;
  font-style: normal;
  letter-spacing: 0.04em;
}

/* ── Next Chapter Button ──────────────────────────── */
.fs-next-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  background: transparent;
  border: 1.5px solid var(--accent, #67e8f9);
  border-radius: 999px;
  color: var(--accent, #67e8f9);
  font-family: var(--font-body, 'DM Sans', sans-serif);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.22s ease, color 0.22s ease, transform 0.18s ease,
              box-shadow 0.22s ease;
  box-shadow: 0 0 0 0 var(--accent, #67e8f9);
  white-space: nowrap;
}

.fs-next-btn:hover {
  background: var(--accent, #67e8f9);
  color: #0a0a14;
  box-shadow: 0 0 18px rgba(103,232,249,0.35);
  transform: translateY(-1px);
}

.fs-next-btn:active {
  transform: translateY(0px);
}

.fs-next-btn svg {
  flex-shrink: 0;
  transition: transform 0.18s ease;
}

.fs-next-btn:hover svg {
  transform: translateX(3px);
}

/* ── Grain overlay on each strip ─────────────────── */
.fs-strip {
  position: relative;
}
.fs-strip::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  opacity: 0.022;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  border-radius: 4px;
}

/* Subtle tint per strip */
.fs-strip-0::before { content:''; position:absolute;inset:0;background:rgba(103,232,249,0.025);pointer-events:none;z-index:2;border-radius:4px; }
.fs-strip-1::before { content:''; position:absolute;inset:0;background:rgba(249,168,212,0.025);pointer-events:none;z-index:2;border-radius:4px; }
.fs-strip-2::before { content:''; position:absolute;inset:0;background:rgba(192,132,252,0.025);pointer-events:none;z-index:2;border-radius:4px; }
.fs-strip-3::before { content:''; position:absolute;inset:0;background:rgba(110,231,183,0.025);pointer-events:none;z-index:2;border-radius:4px; }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 1024px) {
  .fs-layout { gap: 8px; }
  .fs-group  { gap: 6px; }
}

@media (max-width: 768px) {
  /* Tablet: 1 strip each side */
  .fs-group .fs-strip:nth-child(2) { display: none; }
  .fs-centre { min-width: 160px; max-width: 260px; }
  .fs-note   { font-size: 0.82rem; padding: 1rem 0.75rem; }
}

@media (max-width: 520px) {
  /* Phone: hide strips entirely, show just text + button */
  .fs-group { display: none; }
  .fs-layout {
    justify-content: center;
    padding: 2rem 1.5rem;
  }
  .fs-centre {
    max-width: 100%;
    position: static;
  }
}