/* =========================================================
   BEOMONNURI v5 — NEXTGEN
   Builds on v4 (ai-frontier.css). Adds:
   - GPU neural activation viz layer
   - 3D cylinder partner marquee
   - Live LLM hero terminal
   - Mouse trail particle layer
   - Chromatic aberration SVG filter
   - Sound toggle
   - Advanced scroll-linked transforms
   ========================================================= */

/* ===== Chromatic aberration filter wrapper ===== */
.chroma-shift {
  filter: url(#chroma);
  transition: filter 0.2s;
}

/* ============================================================
   CROSS-DOCUMENT VIEW TRANSITIONS (Chrome 126+)
   When the browser navigates between pages on the same origin,
   the browser automatically snapshots the old page and animates
   into the new page. Shared elements (matching view-transition-name)
   morph from one position/size to the other.
   ============================================================ */
@view-transition {
  navigation: auto;
}

/* Default root transition — soft crossfade + scale */
::view-transition-old(root) {
  animation: vt-out 0.45s cubic-bezier(.7, 0, .2, 1) both;
}
::view-transition-new(root) {
  animation: vt-in 0.55s cubic-bezier(.4, 0, .1, 1) both;
}
@keyframes vt-out {
  0%   { opacity: 1; transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-12px) scale(0.985); filter: blur(3px); }
}
@keyframes vt-in {
  0%   { opacity: 0; transform: translateY(16px) scale(0.99); filter: blur(4px); }
  100% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

/* Named shared elements — these morph from page to page */
.brand               { view-transition-name: brand; }
.partner-marquee     { view-transition-name: partner-marquee; }
nav.top              { view-transition-name: nav-top; }
footer               { view-transition-name: footer; }
.ai-widget           { view-transition-name: ai-widget; }
.status-orb          { view-transition-name: status-orb; }
.scroll-progress     { view-transition-name: scroll-progress; }

/* Smooth morph for shared elements */
::view-transition-old(brand),
::view-transition-new(brand),
::view-transition-old(nav-top),
::view-transition-new(nav-top),
::view-transition-old(partner-marquee),
::view-transition-new(partner-marquee),
::view-transition-old(footer),
::view-transition-new(footer),
::view-transition-old(ai-widget),
::view-transition-new(ai-widget),
::view-transition-old(status-orb),
::view-transition-new(status-orb),
::view-transition-old(scroll-progress),
::view-transition-new(scroll-progress) {
  animation: none;
  mix-blend-mode: normal;
}

/* Make the morphing extra smooth */
@media all {
  ::view-transition-group(brand),
  ::view-transition-group(nav-top),
  ::view-transition-group(partner-marquee),
  ::view-transition-group(footer),
  ::view-transition-group(ai-widget),
  ::view-transition-group(status-orb) {
    animation-duration: 0.55s;
    animation-timing-function: cubic-bezier(.4, 0, .1, 1);
  }
}

/* Reduced motion: instant */
@media not all and (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root) { animation: none; }
}

/* ===== Sound + theme toggle bar (floating top-left of hero, mono pills) ===== */
.system-bar {
  position: absolute; top: 24px; right: 50%; transform: translateX(50%);
  z-index: 50;
  display: flex; gap: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.system-bar button {
  background: rgba(246, 244, 239, 0.5);
  backdrop-filter: blur(12px);
  border: 1px solid var(--mute-line);
  padding: 7px 12px;
  display: flex; align-items: center; gap: 7px;
  cursor: pointer;
  transition: all 0.2s;
}
.system-bar button:hover {
  background: var(--paper); color: var(--bg);
  border-color: var(--paper);
}
.system-bar button .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--mute);
}
.system-bar button.active .dot {
  background: var(--acid); animation: blink 1.4s ease-in-out infinite;
  box-shadow: 0 0 0 3px rgba(146,18,48,0.2);
}
@media (max-width: 700px) { .system-bar { display: none; } }

/* ===== Hero LLM Terminal ===== */
.llm-terminal {
  position: relative;
  margin-top: 36px;
  max-width: 580px;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(146, 18, 48, 0.4);
  color: var(--bg);
  font-family: var(--mono);
  z-index: 5;
}
.llm-terminal .lt-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(246, 244, 239, 0.1);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.llm-terminal .lt-bar .left {
  display: flex; align-items: center; gap: 8px;
  color: var(--acid-bright);
}
.llm-terminal .lt-bar .left::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--acid-bright);
  box-shadow: 0 0 0 3px rgba(196,26,63,0.25);
  animation: blink 1.4s ease-in-out infinite;
}
.llm-terminal .lt-bar .right {
  color: rgba(246,244,239,0.5);
}
.llm-terminal .lt-input {
  display: flex; align-items: center;
  padding: 0;
}
.llm-terminal .lt-input::before {
  content: '>'; padding: 0 14px;
  color: var(--acid-bright); font-weight: 700;
  font-size: 14px;
}
.llm-terminal .lt-input input {
  flex: 1; background: transparent; border: none;
  color: var(--bg);
  font: inherit; font-size: 13px;
  padding: 14px 4px;
  letter-spacing: 0;
  outline: none;
  caret-color: var(--acid-bright);
}
.llm-terminal .lt-input input::placeholder { color: rgba(246,244,239,0.4); }
.llm-terminal .lt-input button {
  background: var(--acid);
  color: #fff;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 12px 18px;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}
.llm-terminal .lt-input button:hover { background: var(--acid-bright); }
.llm-terminal .lt-input button:disabled {
  opacity: 0.5; cursor: wait;
}
.llm-terminal .lt-output {
  padding: 12px 18px 16px;
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.llm-terminal.has-output .lt-output {
  max-height: 320px;
  padding: 16px 18px 20px;
  border-top: 1px solid rgba(246, 244, 239, 0.1);
  overflow-y: auto;
}
.llm-terminal .lt-output .meta {
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--acid-bright);
  margin-bottom: 8px;
}
.llm-terminal .lt-output .stream::after {
  content: '▋';
  color: var(--acid-bright);
  margin-left: 2px;
  animation: blink 0.6s steps(2) infinite;
}
.llm-terminal .lt-output.done .stream::after { content: ''; }
.llm-terminal .lt-suggest {
  display: flex; gap: 6px; flex-wrap: wrap;
  padding: 0 14px 12px;
}
.llm-terminal .lt-suggest button {
  background: transparent;
  border: 1px solid rgba(246,244,239,0.18);
  color: rgba(246,244,239,0.7);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 10px;
  cursor: pointer;
  transition: all 0.2s;
}
.llm-terminal .lt-suggest button:hover {
  background: var(--acid); color: #fff; border-color: var(--acid);
}

/* ===== Neural activation overlay (canvas) — disabled per user feedback ===== */
#neural-grid {
  display: none;
}

/* ===== Global GPU particles (covers full viewport on all pages) ===== */
#gpu-particles {
  opacity: 0.85;          /* default — appropriate over hero */
  transition: opacity 0.6s ease;
}
/* On non-home pages, particles are subtler */
body:not(.has-hero) #gpu-particles {
  opacity: 0.55;
}
/* Mobile: turn down */
@media (max-width: 700px) {
  #gpu-particles { opacity: 0.4; }
}
@media (hover: none) {
  /* On touch devices, particles only react to taps — keep them visible but subtle */
  #gpu-particles { opacity: 0.35; }
}

/* ===== GLSL Liquid Hero Layer ===== */
#liquid-hero {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 2;
  pointer-events: none;
  opacity: 0.8;
  mix-blend-mode: multiply;
  display: block;
}

/* ===== Three.js Refraction Glass Orbs ===== */
#glass-orbs {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 2;
  pointer-events: none;
}
#glass-orbs canvas { width: 100%; height: 100%; display: block; }

/* ===== Mouse trail canvas ===== */
#mouse-trail {
  position: fixed; inset: 0;
  width: 100vw; height: 100vh;
  pointer-events: none;
  z-index: 9998;
  mix-blend-mode: multiply;
  display: none !important;
}
@media (hover: none) { #mouse-trail { display: none; } }

/* ===== 3D Cylinder Partner Marquee ===== */
.partner-cylinder {
  position: relative;
  height: 260px;
  background:
    radial-gradient(ellipse 60% 80% at 50% 50%, rgba(146,18,48,0.04), transparent 70%),
    var(--bg);
  border-top: 1px solid var(--paper);
  border-bottom: 1px solid var(--paper);
  overflow: hidden;
  perspective: 900px;
  perspective-origin: 50% 50%;
}
.partner-cylinder::before,
.partner-cylinder::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 180px;
  z-index: 4; pointer-events: none;
}
.partner-cylinder::before { left: 0; background: linear-gradient(90deg, var(--bg) 25%, transparent); }
.partner-cylinder::after  { right: 0; background: linear-gradient(-90deg, var(--bg) 25%, transparent); }

.partner-cylinder-head {
  position: absolute; left: 32px; top: 50%; transform: translateY(-50%);
  z-index: 5;
  background: var(--bg);
  padding: 8px 14px 8px 0;
  border-right: 1px solid var(--mute-line);
  font-family: var(--mono); font-size: 10.5px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--acid);
  display: flex; align-items: center; gap: 10px;
}
.partner-cylinder-head::before {
  content: ''; width: 7px; height: 7px; background: var(--acid); border-radius: 50%;
  animation: pulse-dot 1.6s ease-in-out infinite;
}

.cylinder-stage {
  position: absolute; left: 50%; top: 50%;
  transform-style: preserve-3d;
  animation: rotateCylinder 40s linear infinite;
  will-change: transform;
}
.partner-cylinder:hover .cylinder-stage {
  animation-play-state: paused;
}
.cylinder-face {
  position: absolute;
  width: 260px; height: 140px;
  left: -130px; top: -70px;
  transform-style: preserve-3d;
  backface-visibility: hidden;
  display: flex; align-items: center; justify-content: center;
  padding: 0 22px;
  background: linear-gradient(180deg, rgba(246,244,239,0.95), rgba(236,232,223,0.85));
  border: 1px solid var(--paper);
  box-shadow:
    0 20px 40px -10px rgba(13,13,13,0.18),
    inset 0 1px 0 rgba(255,255,255,0.5);
  transition: box-shadow 0.3s;
}
.cylinder-face::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.4) 50%, transparent 60%);
  pointer-events: none;
  opacity: 0.6;
}
.cylinder-face .logo-mark {
  width: 200px;
  height: 56px;
  max-width: none;
  max-height: none;
  object-fit: contain;
  object-position: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.cylinder-face .logo-mark.logo-edu-dku,
.cylinder-face .logo-mark.logo-lab-knl,
.cylinder-face .logo-mark.logo-youth-foundation,
.cylinder-face .logo-mark.logo-moel,
.cylinder-face .logo-mark.logo-korcham {
  transform: scale(1.34);
  transform-origin: center;
}

/* two-logo rework: youth-foundation + localmotive */
.cylinder-face .logo-mark.logo-youth-foundation {
  transform: scale(1.42);
}
.cylinder-face .logo-mark.logo-localmotive {
  width: 220px;
  height: 60px;
  transform: scale(1.12);
  transform-origin: center;
}

.cylinder-face .meta,
.cylinder-face .meta .cat,
.cylinder-face .meta .name {
  display: none;
}

@keyframes rotateCylinder {
  from { transform: translate(-50%, -50%) rotateY(0deg); }
  to   { transform: translate(-50%, -50%) rotateY(-360deg); }
}
@media (max-width: 700px) {
  .partner-cylinder { height: 140px; perspective: 900px; }
  .cylinder-face { width: 160px; height: 70px; left: -80px; top: -35px; padding: 0 12px; }
  .cylinder-face .logo-mark { width: 120px; height: 34px; max-width: none; max-height: none; object-fit: contain; object-position: center; }
  .cylinder-face .logo-mark.logo-edu-dku,
  .cylinder-face .logo-mark.logo-lab-knl,
  .cylinder-face .logo-mark.logo-youth-foundation,
  .cylinder-face .logo-mark.logo-moel,
  .cylinder-face .logo-mark.logo-korcham {
    transform: scale(1.2);
  }

  /* two-logo rework: youth-foundation + localmotive */
  .cylinder-face .logo-mark.logo-youth-foundation {
    transform: scale(1.28);
  }
  .cylinder-face .logo-mark.logo-localmotive {
    width: 132px;
    height: 38px;
    transform: scale(1.08);
    transform-origin: center;
  }
  .partner-cylinder-head { display: none; }
}

/* ===== System status orb (bottom-left floating live indicator) ===== */
.status-orb {
  position: fixed;
  bottom: 24px; left: 24px;
  z-index: 80;
  background: rgba(13,13,13,0.85);
  backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid rgba(146,18,48,0.4);
  padding: 10px 14px;
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bg);
}
.status-orb::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 3px rgba(16,185,129,0.3), 0 0 12px rgba(16,185,129,0.6);
  animation: pulse-orb 2s ease-in-out infinite;
}
@keyframes pulse-orb {
  0%, 100% { box-shadow: 0 0 0 3px rgba(16,185,129,0.3), 0 0 12px rgba(16,185,129,0.6); }
  50% { box-shadow: 0 0 0 6px rgba(16,185,129,0.1), 0 0 20px rgba(16,185,129,0.8); }
}
.status-orb .v { color: #10b981; font-weight: 700; }
@media (max-width: 700px) {
  .status-orb { bottom: 16px; left: 16px; padding: 8px 11px; font-size: 9.5px; }
}

/* ===== Section transition slabs ===== */
.slab-divider {
  height: 80px;
  background:
    linear-gradient(180deg, var(--bg), var(--bg-deep)),
    repeating-linear-gradient(90deg, transparent 0, transparent 60px, rgba(146,18,48,0.05) 60px, rgba(146,18,48,0.05) 61px);
  position: relative;
  overflow: hidden;
}
.slab-divider::before {
  content: '';
  position: absolute; left: 0; right: 0; top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--acid), transparent);
  transform: translateY(-50%);
  animation: slab-shine 4s ease-in-out infinite;
}
@keyframes slab-shine {
  0%, 100% { transform: translateY(-50%) translateX(-100%); }
  50% { transform: translateY(-50%) translateX(100%); }
}

/* ===== Tilt / parallax cards ===== */
.tilt {
  transform-style: preserve-3d;
  transition: transform 0.4s cubic-bezier(.2,.7,.2,1);
}

/* ===== Live "thinking" log ticker (subtle, top of intel section) ===== */
.thinking-strip {
  background: rgba(13,13,13,0.95);
  color: var(--bg);
  padding: 10px 0;
  overflow: hidden;
  border-top: 1px solid rgba(246,244,239,0.1);
  border-bottom: 1px solid rgba(246,244,239,0.1);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  position: relative;
}
.thinking-strip-track {
  display: flex; gap: 32px;
  animation: thinking-scroll 60s linear infinite;
  width: max-content;
  white-space: nowrap;
}
.thinking-strip-track span {
  color: rgba(246,244,239,0.8);
  display: inline-flex; align-items: center; gap: 8px;
}
.thinking-strip-track .acid { color: var(--acid-bright); font-weight: 600; }
.thinking-strip-track .ok { color: #10b981; }
.thinking-strip-track::before {
  content: '◉ THINKING'; color: var(--acid-bright); font-weight: 700;
}
@keyframes thinking-scroll {
  to { transform: translateX(-50%); }
}

/* ===== Container quary based fluid sizing ===== */
@container (max-width: 700px) {
  .svc h3 { font-size: 22px; }
}
.svc, .prod-detail .pd-cell { container-type: inline-size; }

/* ===== Animated CSS variable accent for sections ===== */
@property --acc-x { syntax: '<percentage>'; initial-value: 50%; inherits: false; }
@property --acc-y { syntax: '<percentage>'; initial-value: 50%; inherits: false; }

.svc {
  background:
    radial-gradient(circle at var(--acc-x) var(--acc-y), rgba(146,18,48,0.02), transparent 60%),
    var(--bg);
  transition: --acc-x 0.6s ease, --acc-y 0.6s ease, background 0.4s;
}

/* ===== Scroll progress bar at the very top ===== */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 2px;
  background: transparent;
  z-index: 200;
  pointer-events: none;
}
.scroll-progress > div {
  height: 100%;
  background: linear-gradient(90deg, var(--acid), var(--acid-bright), var(--plasma));
  transform-origin: left;
  transform: scaleX(var(--p, 0));
  transition: transform 0.06s linear;
  box-shadow: 0 0 12px rgba(146,18,48,0.6);
}