/* ==========================================================================
   VØID++  —  design tokens
   ---------------------------------------------------------------------
   Black #050506  Graphite #101214 / #1a1d20  White #eef1ee
   Terminal green #3dffa0   Alert red #ff2d46   Dim #5b6360
   Type: JetBrains Mono — one voice, technical, throughout.
   ========================================================================== */

:root{
  --black:      #050506;
  --graphite:   #101214;
  --graphite-2: #1a1d20;
  --white:      #eef1ee;
  --green:      #3dffa0;
  --green-dim:  #1c8a56;
  --red:        #ff2d46;
  --red-dim:    #7a1522;
  --dim:        #5b6360;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', 'Cascadia Code', monospace;

  --fs-base: clamp(13px, 1.5vw, 16px);
  --line-h: 1.55;
}

*,*::before,*::after{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background:var(--black);
  color:var(--green);
  font-family:var(--mono);
  font-size:var(--fs-base);
  overflow:hidden;
  -webkit-font-smoothing:antialiased;
  cursor:default;
  user-select:none;
  overscroll-behavior:none;
}

::selection{ background:var(--green); color:var(--black); }

/* Reduced motion: keep the experience, cut the aggressive parts.
   effects.js also reads this flag to skip glitch/flash calls entirely. */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001s !important; transition-duration:.001s !important; }
}

/* ---------------------------------------------------------------------
   Atmosphere layers (scanlines / grain / vignette / rgb split)
   --------------------------------------------------------------------- */
#crt{ position:fixed; inset:0; pointer-events:none; z-index:50; }

#scanlines{
  position:absolute; inset:0;
  background:repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.03) 0px, rgba(255,255,255,0.03) 1px,
    transparent 1px, transparent 3px
  );
  mix-blend-mode:overlay;
  opacity:.45;
}

#noise{
  position:absolute; inset:-50%;
  width:200%; height:200%;
  opacity:.03;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  animation:noise-shift 1s steps(2) infinite;
}
@keyframes noise-shift{
  0%{ transform:translate(0,0); } 50%{ transform:translate(-2%,-1%); } 100%{ transform:translate(1%,2%); }
}

#vignette{
  position:absolute; inset:0;
  background:radial-gradient(ellipse at center, rgba(0,0,0,0) 45%, rgba(0,0,0,.55) 100%);
}

#rgbsplit{
  position:absolute; inset:0; opacity:0;
  background:linear-gradient(90deg, rgba(255,0,60,.15), transparent 2%, transparent 98%, rgba(0,255,180,.15));
}
body.glitch #rgbsplit{ opacity:1; animation:glitch-flicker .35s steps(2); }
body.glitch #app{ animation:glitch-shift .35s steps(2); }
@keyframes glitch-flicker{ 0%,100%{ opacity:0; } 20%,60%{ opacity:1; } }
@keyframes glitch-shift{
  0%,100%{ transform:translate(0,0); }
  20%{ transform:translate(-3px,1px); } 40%{ transform:translate(3px,-1px); }
  60%{ transform:translate(-2px,0); } 80%{ transform:translate(2px,1px); }
}
body.flash::after{
  content:''; position:fixed; inset:0; background:var(--red);
  opacity:.18; z-index:55; pointer-events:none; animation:flash-out .18s ease-out forwards;
}
@keyframes flash-out{ from{ opacity:.28; } to{ opacity:0; } }

/* ---------------------------------------------------------------------
   Top HUD (session id / clock / connection / audio)
   --------------------------------------------------------------------- */
#hud{
  position:fixed; top:0; left:0; right:0;
  display:flex; justify-content:space-between; align-items:center;
  padding:10px clamp(14px,3vw,28px);
  font-size:11px; letter-spacing:.06em; color:var(--dim);
  z-index:40; opacity:0; transition:opacity .6s ease;
}
#hud.visible{ opacity:1; }
#hud-left, #hud-right{ display:flex; gap:16px; align-items:center; }
#hud-conn.online{ color:var(--green); }
#hud-conn.offline{ color:var(--red); }

#audio-toggle{
  background:transparent; border:1px solid var(--graphite-2); color:var(--dim);
  font-family:var(--mono); font-size:10px; letter-spacing:.08em;
  padding:5px 9px; border-radius:2px; cursor:pointer; pointer-events:auto;
  transition:border-color .2s, color .2s;
}
#audio-toggle:hover{ border-color:var(--green-dim); color:var(--green); }
#audio-toggle.on{ color:var(--green); border-color:var(--green-dim); }

/* ---------------------------------------------------------------------
   App shell — desktop: terminal + side panel. mobile: single column.
   --------------------------------------------------------------------- */
#app{
  position:relative; height:100%; width:100%;
  display:grid;
  grid-template-columns:1fr;
  place-items:center;
  padding:clamp(16px,5vw,48px);
}

.stage-inner{
  width:100%;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:20px;
}

/* Desktop: reserve a technical side panel with live signature/HUD data */
body.device-desktop #app{
  grid-template-columns:minmax(0,880px) 240px;
  column-gap:32px;
  align-items:center;
  justify-content:center;
}
body.device-desktop .stage-inner{ align-items:flex-start; }

#sidepanel{
  display:none;
  border-left:1px solid var(--graphite-2);
  padding-left:20px;
  align-self:stretch;
  align-items:center;
}
body.device-desktop #sidepanel.visible{ display:flex; }
#sidepanel-inner{ font-size:11px; color:var(--dim); line-height:2; }
#sidepanel-inner .sp-title{ color:var(--white); letter-spacing:.12em; margin-bottom:10px; }
#sidepanel-inner .sp-row{ display:flex; justify-content:space-between; gap:10px; white-space:nowrap; }
#sidepanel-inner .sp-row b{ color:var(--green); font-weight:500; }
#sidepanel-inner .sp-rule{ color:var(--graphite-2); margin:10px 0; }

/* ---------------------------------------------------------------------
   Terminal
   --------------------------------------------------------------------- */
#terminal{
  width:min(820px, 92vw);
  max-height:66vh;
  overflow:hidden;
  line-height:var(--line-h);
  white-space:pre-wrap;
  word-break:break-word;
}
body.device-mobile #terminal{ width:94vw; max-height:70vh; font-size:.92em; }

#terminal .line{ display:block; min-height:1em; }
#terminal .line.dim{ color:var(--dim); }
#terminal .line.white{ color:var(--white); }
#terminal .line.red{ color:var(--red); }
#terminal .line.ok::after{ content:' [ OK ]'; color:var(--green); font-weight:700; }
#terminal .line.fail::after{ content:' [ FAIL ]'; color:var(--red); font-weight:700; }
#terminal .line.code{ color:var(--dim); font-size:.85em; letter-spacing:.03em; }
#terminal .line.center{ text-align:center; }
#terminal .line.big{ font-size:1.3em; font-weight:800; }

.cursor{
  display:inline-block; width:.55em; background:var(--green);
  margin-left:2px; animation:blink 1s steps(1) infinite;
}
body.alert .cursor{ background:var(--red); }
@keyframes blink{ 0%,49%{ opacity:1; } 50%,100%{ opacity:0; } }

/* ---------------------------------------------------------------------
   Progress bar
   --------------------------------------------------------------------- */
#progress-wrap{ width:min(600px, 90vw); text-align:center; }
#progress-label{ font-size:12px; letter-spacing:.18em; color:var(--dim); margin-bottom:10px; }
#progress-track{
  height:14px; border:1px solid var(--graphite-2); background:var(--graphite);
  position:relative; overflow:hidden;
}
#progress-fill{
  height:100%; width:0%;
  background:linear-gradient(90deg, var(--green-dim), var(--green));
  transition:width .5s cubic-bezier(.2,.8,.2,1);
  box-shadow:0 0 12px rgba(61,255,160,.5);
}
body.alert #progress-fill{
  background:linear-gradient(90deg, var(--red-dim), var(--red));
  box-shadow:0 0 14px rgba(255,45,70,.55);
}
#progress-pct{ margin-top:8px; font-size:13px; color:var(--white); letter-spacing:.08em; }

/* ---------------------------------------------------------------------
   Big center text moments
   --------------------------------------------------------------------- */
#bigtext{ text-align:center; font-weight:800; letter-spacing:.04em; line-height:1.25; }
#bigtext .t1{ font-size:clamp(22px,5.5vw,44px); }
#bigtext .t2{ font-size:clamp(30px,7vw,64px); color:var(--red); text-shadow:0 0 26px rgba(255,45,70,.55); }
#bigtext .sub{ font-size:clamp(12px,2vw,15px); color:var(--dim); font-weight:400; letter-spacing:.1em; margin-top:12px; }
#bigtext .op-name{ color:var(--white); font-size:clamp(20px,4vw,32px); font-weight:800; margin-top:4px; }
#bigtext .warn-note{
  margin-top:22px; color:var(--red); font-size:clamp(11px,1.8vw,13px);
  letter-spacing:.14em; animation:pulse-red 1.6s ease-in-out infinite;
}
@keyframes pulse-red{ 0%,100%{ opacity:.55; } 50%{ opacity:1; } }

/* ---------------------------------------------------------------------
   Report card
   --------------------------------------------------------------------- */
#report{
  width:min(560px, 90vw); border:1px solid var(--graphite-2);
  background:rgba(16,18,20,.6); padding:22px clamp(16px,4vw,28px);
}
.report-title{ color:var(--white); font-weight:700; letter-spacing:.08em; margin-bottom:6px; }
.report-rule{ color:var(--graphite-2); margin-bottom:10px; }
.report-row{ display:flex; align-items:baseline; gap:8px; font-size:13px; padding:3px 0; }
.report-row.spacer{ height:6px; padding:0; }
.report-row .dots{ flex:1; border-bottom:1px dotted var(--graphite-2); transform:translateY(-4px); }
.report-val.ok{ color:var(--green); font-weight:700; }
.report-val.warn{ color:var(--red); font-weight:700; }
.report-status{ margin-top:14px; font-size:13px; color:var(--white); }
.report-status span{ color:var(--green); font-weight:700; }

/* ---------------------------------------------------------------------
   Achievement
   --------------------------------------------------------------------- */
#achievement{
  width:min(480px, 90vw); border:1px solid var(--green-dim);
  background:linear-gradient(180deg, rgba(61,255,160,.08), transparent);
  padding:16px 20px; text-align:center; animation:ach-in .5s cubic-bezier(.2,.8,.2,1);
}
@keyframes ach-in{ 0%{ transform:translateY(14px) scale(.96); opacity:0; } 100%{ transform:translateY(0) scale(1); opacity:1; } }
.ach-eyebrow{ font-size:11px; letter-spacing:.2em; color:var(--dim); margin-bottom:6px; }
.ach-title{ font-size:clamp(16px,3vw,20px); font-weight:800; color:var(--white); }
.ach-desc{ font-size:12px; color:var(--dim); margin-top:6px; line-height:1.5; }

/* ---------------------------------------------------------------------
   Buttons / final actions
   --------------------------------------------------------------------- */
#final-actions{ display:flex; gap:14px; flex-wrap:wrap; justify-content:center; }
.void-btn{
  font-family:var(--mono); font-size:13px; letter-spacing:.08em; font-weight:700;
  color:var(--black); background:var(--green); border:1px solid var(--green);
  padding:13px 22px; cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.void-btn:hover{ transform:translateY(-2px); box-shadow:0 6px 20px rgba(61,255,160,.25); }
.void-btn:active{ transform:translateY(0); }
.void-btn.ghost{ background:transparent; color:var(--green); }
.void-btn.ghost:hover{ background:rgba(61,255,160,.08); }
.void-btn:focus-visible{ outline:2px solid var(--white); outline-offset:3px; }

/* ---------------------------------------------------------------------
   Easter egg toast
   --------------------------------------------------------------------- */
#easter-toast{
  position:fixed; bottom:26px; left:50%; transform:translateX(-50%) translateY(10px);
  z-index:70; background:var(--graphite); border:1px solid var(--green-dim); color:var(--green);
  padding:12px 18px; font-size:12px; letter-spacing:.06em; text-align:center;
  opacity:0; transition:opacity .25s ease, transform .25s ease; pointer-events:none; white-space:pre-line;
}
#easter-toast.visible{ opacity:1; transform:translateX(-50%) translateY(0); }

/* ---------------------------------------------------------------------
   utility
   --------------------------------------------------------------------- */
.hidden{ display:none !important; }

/* ---------------------------------------------------------------------
   Mobile refinements — vertical, full-width terminal, touch-sized buttons
   --------------------------------------------------------------------- */
@media (max-width:720px){
  #app{ grid-template-columns:1fr; padding:14px; }
  #sidepanel{ display:none !important; }
  #hud{ font-size:9.5px; padding:8px 12px; }
  #final-actions{ flex-direction:column; width:min(320px,88vw); }
  .void-btn{ width:100%; text-align:center; padding:15px 22px; }
}

/* ---------------------------------------------------------------------
   404 page
   --------------------------------------------------------------------- */
.notfound-wrap{
  height:100%; display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; gap:18px; padding:24px;
}
.notfound-wrap .brand{ color:var(--green); font-weight:800; font-size:clamp(20px,4vw,30px); letter-spacing:.06em; }
.notfound-wrap .code{ color:var(--red); font-weight:800; font-size:clamp(48px,12vw,120px); line-height:1; text-shadow:0 0 30px rgba(255,45,70,.4); }
.notfound-wrap .msg1{ color:var(--white); letter-spacing:.1em; font-size:clamp(14px,2.4vw,18px); }
.notfound-wrap .msg2{ color:var(--dim); font-size:clamp(12px,2vw,14px); max-width:440px; }