/* =========================================================
   kunoichi.quest  --  nostalgic-cyberpunk dossier
   sepia paper + muted-cyan HUD + futura-geometric (Jost)
   ========================================================= */

:root {
  --ink-deep:   #1a0e08;
  --ink-rust:   #3a1f0a;
  --sepia-mid:  #7a4a2a;
  --sepia-warm: #c89968;
  --paper-aged: #e8d4a8;
  --paper-light:#f4e8cc;
  --hud-cyan:   #52b3c4;
  --accent-rust:#8a3a1e;
  --desk-base:  #d9c08a;
  --rust-deep:  #4a2612;

  --shadow-stack: 0 18px 40px -12px rgba(101,67,33,0.35),
                  0 6px 12px -4px rgba(74,38,18,0.22);
  --shadow-stack-soft: 0 9px 22px -10px rgba(101,67,33,0.22),
                       0 3px 7px -3px rgba(74,38,18,0.14);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Special Elite', 'Courier New', monospace;
  color: var(--ink-deep);
  background:
    radial-gradient(ellipse at 30% 20%, var(--paper-light) 0%, transparent 60%),
    radial-gradient(ellipse at 75% 85%, var(--paper-aged) 0%, transparent 70%),
    var(--desk-base);
  background-attachment: fixed;
  text-rendering: geometricPrecision;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* --- paper grain --- */
.paper-grain {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.18;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 1;
}

/* --- HUD ticker (kanji tickertape) --- */
.hud-ticker {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 26px;
  background: rgba(26,14,8,0.82);
  border-bottom: 1px solid rgba(82,179,196,0.35);
  overflow: hidden;
  z-index: 60;
  display: flex;
  align-items: center;
  white-space: nowrap;
}
.hud-ticker span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--hud-cyan);
  padding: 0 2.4rem;
  opacity: 0.78;
  flex: 0 0 auto;
  animation: tickerScroll 38s linear infinite;
}
@keyframes tickerScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* =========================================================
   DESK / FOLDER STACK
   ========================================================= */
.desk {
  position: relative;
  z-index: 2;
  perspective: 1400px;
  padding: 4.5rem 0 5rem;
  max-width: 1280px;
  margin: 0 auto;
}

.folder {
  position: relative;
  margin: 0 auto 7.5vh;
  width: min(90%, 980px);
  background: var(--paper-aged);
  border: 1px solid var(--sepia-warm);
  box-shadow: var(--shadow-stack);
  padding: 3.2rem;
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.22,1,0.36,1);
  overflow: hidden;
}
.folder::after {
  /* darkened sepia vignette inside paper */
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 30%, transparent 40%, rgba(74,38,18,0.14) 100%);
  pointer-events: none;
}

/* folder rotations -- "tossed onto a desk" */
.folder[data-folder="0"] { transform: rotate(-1.2deg); z-index: 50; }
.folder[data-folder="1"] { transform: rotate(1.5deg);  z-index: 40; margin-left: calc(50% - 490px + 18px); }
.folder[data-folder="2"] { transform: rotate(-0.8deg); z-index: 30; }
.folder[data-folder="3"] { transform: rotate(2.4deg);  z-index: 20; margin-left: calc(50% - 490px - 14px); }
.folder[data-folder="4"] { transform: rotate(-1.6deg); z-index: 10; }

/* paper-light highlight panels for cover & signoff */
.folder--cover, .folder--signoff { background: var(--paper-light); }

/* manila tab */
.folder-tab {
  position: absolute;
  top: -1px; left: 2.8rem;
  transform: translateY(-100%);
  background: var(--paper-light);
  border: 1px solid var(--sepia-warm);
  border-bottom: none;
  padding: 0.42rem 1.5rem 0.3rem;
  box-shadow: 0 -6px 14px -8px rgba(74,38,18,0.3);
}
.tab-label {
  font-family: 'Jost', sans-serif;
  font-weight: 800;
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--ink-rust);
  text-transform: uppercase;
}

/* translucent cyan HUD grid inside each folder */
.hud-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(82,179,196,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(82,179,196,0.08) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 1;
}

.folder > *:not(.hud-grid):not(.folder-tab) { position: relative; z-index: 3; }

/* =========================================================
   COVER FOLDER
   ========================================================= */
.folder--cover { padding-top: 4rem; }

.cover-inner {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3rem;
  align-items: center;
}

.cover-figure { position: relative; }
.rooftop-svg {
  width: 100%; height: auto;
  border: 1px solid var(--sepia-warm);
  mix-blend-mode: multiply;
  box-shadow: var(--shadow-stack-soft);
}
.reticle {
  position: absolute;
  top: 46%; left: 56%;
  transform: translate(-50%,-50%);
  pointer-events: none;
}
.reticle-mark {
  display: block;
  width: 140px; height: 140px;
  border: 1px solid rgba(82,179,196,0.55);
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(82,179,196,0.18);
  position: relative;
  animation: reticlePulse 3.2s ease-in-out infinite;
}
.reticle-mark::before, .reticle-mark::after {
  content: ''; position: absolute; background: var(--hud-cyan);
}
.reticle-mark::before { left: 50%; top: -10px; width: 1px; height: 20px; transform: translateX(-50%); }
.reticle-mark::after  { top: 50%; left: -10px; height: 1px; width: 20px; transform: translateY(-50%); }
.reticle-tag {
  position: absolute;
  bottom: -26px; left: 50%;
  transform: translateX(-50%);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--hud-cyan);
  white-space: nowrap;
}
@keyframes reticlePulse {
  0%,100% { opacity: 0.5; transform: translate(-50%,-50%) scale(1); }
  50%     { opacity: 0.85; transform: translate(-50%,-50%) scale(1.04); }
}

.cover-text { display: flex; flex-direction: column; gap: 1.1rem; }

.kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--sepia-mid);
  display: flex; align-items: center; gap: 0.6rem;
  text-transform: uppercase;
}

.masthead {
  font-family: 'Jost', sans-serif;
  font-weight: 800;
  font-feature-settings: "ss01";
  font-size: clamp(3.4rem, 8.6vw, 7.6rem);
  letter-spacing: 0.04em;
  line-height: 0.95;
  color: var(--ink-rust);
  position: relative;
}
.dot-q { color: var(--accent-rust); }
.heartbeat-dot {
  display: inline-block;
  width: 0.42em; height: 0.42em;
  margin-left: -0.06em;
  background: var(--hud-cyan);
  border-radius: 50%;
  vertical-align: baseline;
  animation: heartbeat 2.4s ease-in-out infinite;
}
@keyframes heartbeat {
  0%,100% { opacity: 0.6; }
  18%     { opacity: 1; }
  30%     { opacity: 0.7; }
  44%     { opacity: 1; }
  60%     { opacity: 0.6; }
}

.pull-quote {
  font-family: 'Caveat', cursive;
  font-weight: 500;
  font-size: 1.85rem;
  color: var(--sepia-mid);
  line-height: 1.2;
}

.cover-blurb {
  font-size: 1.05rem;
  line-height: 1.85;
  max-width: 46ch;
  color: var(--ink-deep);
}

.scroll-hint {
  margin-top: 2.4rem;
  font-family: 'Caveat', cursive;
  font-size: 1.3rem;
  color: var(--sepia-mid);
  text-align: center;
}

/* =========================================================
   WAVE-FORM BLOCKS  (primary motif)
   ========================================================= */
.wave-block, .signature-block {
  margin: 1.6rem 0;
  padding: 1rem 0 0.4rem;
  border-top: 1px dashed rgba(200,153,104,0.6);
  border-bottom: 1px dashed rgba(200,153,104,0.6);
}
.wave-label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--hud-cyan);
  margin-bottom: 0.5rem;
}
.wave-form {
  display: block;
  width: 100%;
  height: 64px;
  overflow: visible;
}
.wave-form path {
  stroke: var(--hud-cyan);
  stroke-width: 1.6px;
  stroke-linecap: round;
  fill: none;
  stroke-dasharray: 1600;
  stroke-dashoffset: 1600;
  transition: stroke-dashoffset 3s cubic-bezier(0.65,0,0.35,1);
}
.wave-block.in-view .wave-form path,
.signature-block.in-view .wave-form path {
  stroke-dashoffset: 0;
}

/* signature */
.signature-block { text-align: left; }
.signature-svg { height: 110px; max-width: 420px; margin: 0.3rem 0; }
.signature-svg path { stroke-width: 2.2px; transition: stroke-dashoffset 2s cubic-bezier(0.5,0,0.2,1); }
.signature-name {
  font-family: 'Caveat', cursive;
  font-size: 1.5rem;
  color: var(--sepia-mid);
  display: block;
  margin-top: -0.4rem;
}

/* =========================================================
   CASE FILES / DOCUMENTS
   ========================================================= */
.case-stack { position: relative; }

.doc {
  background: var(--paper-light);
  border: 1px solid var(--sepia-warm);
  box-shadow: var(--shadow-stack-soft);
  padding: 2.6rem 2.8rem;
  position: relative;
}
.doc + .doc { margin-top: -1.4rem; }

.doc--a { transform: rotate(-0.6deg); z-index: 5; }
.doc--b { transform: rotate(1.4deg);  z-index: 4; margin-left: 6%; margin-right: -2%; }
.doc--c { transform: rotate(-1.8deg); z-index: 3; margin-left: -1%; margin-right: 7%; }
.doc--wide, .doc--portrait { transform: rotate(0.4deg); }

.doc-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 0.8rem;
}
.case-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--hud-cyan);
  background: rgba(26,14,8,0.06);
  padding: 0.2rem 0.6rem;
  border: 1px solid rgba(82,179,196,0.3);
}
.doc--b .case-id, .doc--c .case-id { display: inline-block; margin-bottom: 0.7rem; }

.case-title {
  font-family: 'Jost', sans-serif;
  font-weight: 800;
  font-feature-settings: "ss01";
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  letter-spacing: 0.02em;
  color: var(--ink-rust);
  line-height: 1.05;
  margin-bottom: 0.4rem;
}
.case-sub {
  font-family: 'Caveat', cursive;
  font-size: 1.35rem;
  color: var(--sepia-mid);
  margin-bottom: 1.2rem;
  line-height: 1.25;
}
.case-body {
  font-size: 1.05rem;
  line-height: 1.85;
  margin: 1rem 0;
  max-width: 64ch;
}
.margin-note {
  font-family: 'Caveat', cursive;
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--ink-rust);
  margin: 1.2rem 0 1.2rem 2.2rem;
  padding-left: 1rem;
  border-left: 2px solid var(--sepia-warm);
  max-width: 40ch;
}

/* annotated word w/ drawn-in underline (handled by JS adding svg) */
.annotated {
  position: relative;
  white-space: nowrap;
  color: var(--ink-rust);
  font-style: normal;
}
.annotated .pencil-strike {
  position: absolute;
  left: -4px; right: -4px; bottom: -6px;
  height: 12px;
  overflow: visible;
  pointer-events: none;
}
.annotated .pencil-strike path {
  stroke: var(--sepia-mid);
  stroke-width: 2px;
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
  transition: stroke-dashoffset 0.9s ease-out;
}
.annotated.in-view .pencil-strike path { stroke-dashoffset: 0; }

/* --- SVG illustration containers --- */
.still-life, .tatami-scene, .cover-figure { line-height: 0; }
.bonsai-svg, .tatami-svg {
  width: 100%; height: auto;
  border: 1px solid var(--sepia-warm);
  mix-blend-mode: multiply;
  margin: 1rem 0 1.4rem;
  box-shadow: var(--shadow-stack-soft);
}
.schematic { animation: schemFloat 7s ease-in-out infinite; transform-origin: center; }
@keyframes schemFloat {
  0%,100% { transform: translateY(0); opacity: 0.8; }
  50%     { transform: translateY(-6px); opacity: 1; }
}
.quiet-reticle { animation: reticlePulse 3.6s ease-in-out infinite; transform-origin: 330px 340px; }

/* heist agitation accent */
.folder--heist .wave-form path { stroke-width: 1.8px; }

/* =========================================================
   SEALS  (kanji wax-stamps)
   ========================================================= */
.seal {
  display: inline-flex;
  align-items: center; justify-content: center;
  font-family: 'Jost', sans-serif;
  font-weight: 800;
  border-radius: 50%;
  color: var(--paper-light);
  background: radial-gradient(circle at 35% 30%, var(--accent-rust), var(--rust-deep));
  box-shadow: inset 0 0 6px rgba(26,14,8,0.5), 0 1px 3px rgba(74,38,18,0.4);
  position: relative;
  filter: contrast(1.05);
}
.seal::after {
  content: '';
  position: absolute; inset: 0;
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='88' height='88'%3E%3Cfilter id='b'%3E%3CfeTurbulence type='turbulence' baseFrequency='0.6' numOctaves='2'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Ccircle cx='44' cy='44' r='44' filter='url(%23b)'/%3E%3C/svg%3E");
  mix-blend-mode: screen;
  opacity: 0.22;
}
.seal--small { width: 22px; height: 22px; font-size: 0.72rem; }
.seal--rust  { width: 44px; height: 44px; font-size: 1.4rem; flex: 0 0 auto; }

/* =========================================================
   SIGN-OFF
   ========================================================= */
.signoff-inner { display: flex; flex-direction: column; gap: 1.2rem; }
.signoff-line {
  font-size: 1.05rem;
  line-height: 1.85;
  max-width: 62ch;
}
.signoff-line--soft { color: var(--sepia-mid); }

.colophon {
  margin-top: 1.4rem;
  font-family: 'Jost', sans-serif;
  font-weight: 600;
  font-feature-settings: "ss01";
  font-size: 1rem;
  letter-spacing: 0.08em;
  color: var(--ink-rust);
}
.colophon .sep { color: var(--sepia-warm); margin: 0 0.5rem; }
.colophon--tiny {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--hud-cyan);
  margin-top: 0.4rem;
}

/* =========================================================
   POINTER-TILT (the only mouse interaction beyond scroll)
   handled in JS via CSS custom props
   ========================================================= */
.folder { will-change: transform; }

/* =========================================================
   RESPONSIVE  --  collapse to single column, halve shadows
   ========================================================= */
@media (max-width: 780px) {
  .desk { padding: 3.4rem 0 3rem; }
  .folder {
    width: 92%;
    padding: 1.8rem 1.4rem;
    margin-left: auto !important; margin-right: auto !important;
    box-shadow: 0 9px 20px -10px rgba(101,67,33,0.2), 0 3px 6px -3px rgba(74,38,18,0.12);
  }
  .folder[data-folder="0"],
  .folder[data-folder="1"],
  .folder[data-folder="2"],
  .folder[data-folder="3"],
  .folder[data-folder="4"] { transform: rotate(0.6deg); }
  .cover-inner { grid-template-columns: 1fr; gap: 1.6rem; }
  .doc { padding: 1.6rem 1.3rem; }
  .doc + .doc { margin-top: 1rem; }
  .doc--a, .doc--b, .doc--c, .doc--wide, .doc--portrait {
    transform: rotate(0.4deg);
    margin-left: 0; margin-right: 0;
  }
  .margin-note { margin-left: 0.8rem; }
  .reticle-mark { width: 96px; height: 96px; }
  .folder-tab { left: 1.2rem; }
}

@media (max-width: 460px) {
  .masthead { font-size: clamp(2.6rem, 14vw, 3.6rem); }
  .case-title { font-size: clamp(1.7rem, 8vw, 2.4rem); }
  .colophon { font-size: 0.86rem; }
  .colophon .sep { margin: 0 0.3rem; }
}