/* ui.css — Grand Buffer Auto shell UI */

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

html, body {
  width: 100%; height: 100%; overflow: hidden;
  background: #05030d;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  -webkit-user-select: none; user-select: none;
  touch-action: none;
}

/* ── iframe fills everything ── */
#gameFrame {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  border: none; display: block;
  z-index: 0;
}

/* ── all overlay layers sit above the iframe ── */
#titleScreen, #settingsPanel, #mobileUI,
#fpsCounter, #fade {
  position: fixed;
  z-index: 10;
}

.hidden { display: none !important; }

/* ═══════════════════════════════════════════
   FADE
═══════════════════════════════════════════ */
#fade {
  inset: 0;
  background: #000;
  opacity: 1;
  transition: opacity 1.8s ease;
  pointer-events: none;
  z-index: 100;
}
#fade.clear { opacity: 0; }

/* ═══════════════════════════════════════════
   TITLE SCREEN
═══════════════════════════════════════════ */
#titleScreen {
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse 110% 80% at 50% 115%,
      rgba(6,2,18,.95) 0%, rgba(6,2,18,.5) 40%, transparent 72%),
    linear-gradient(180deg,
      rgba(8,3,22,.7) 0%, transparent 28%,
      transparent 62%, rgba(4,2,14,.85) 100%);
  transition: opacity 1.5s ease;
  pointer-events: all;
  cursor: pointer;
  z-index: 20;
}
#titleScreen.gone {
  opacity: 0;
  pointer-events: none;
}

#titleInner { text-align: center; padding: 0 24px; }

#titleAuthor {
  font-size: clamp(9px, 1.8vw, 13px);
  font-weight: 600;
  letter-spacing: .55em;
  color: rgba(255,200,150,.4);
  margin-bottom: 20px;
  text-transform: uppercase;
}

#titleName {
  font-size: clamp(56px, 10.5vw, 148px);
  font-weight: 900;
  letter-spacing: .1em;
  line-height: .9;
  margin: 0 0 20px 0;
  background: linear-gradient(
    180deg,
    #fff8ec 0%,
    #ffd9a0 22%,
    #ff9e6e 42%,
    #ff5f9e 62%,
    #b86bff 86%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter:
    drop-shadow(0 0 20px rgba(255,110,160,.6))
    drop-shadow(0 0 64px rgba(150,80,255,.38));
  animation: tGlow 4s ease-in-out infinite;
}
@keyframes tGlow {
  0%,100% {
    filter:
      drop-shadow(0 0 20px rgba(255,110,160,.6))
      drop-shadow(0 0 64px rgba(150,80,255,.38));
  }
  50% {
    filter:
      drop-shadow(0 0 32px rgba(255,140,180,.9))
      drop-shadow(0 0 90px rgba(175,100,255,.55));
  }
}

#titleRule {
  width: min(440px, 58vw);
  height: 2px;
  margin: 0 auto 20px;
  background: linear-gradient(90deg,
    transparent,
    rgba(255,170,120,.95),
    rgba(255,95,158,.95),
    rgba(184,107,255,.95),
    transparent);
  box-shadow: 0 0 16px rgba(255,120,170,.75);
}

#titleTagline {
  font-size: clamp(9px, 1.6vw, 12px);
  letter-spacing: .45em;
  color: rgba(255,210,170,.35);
  margin-bottom: 26px;
  text-transform: uppercase;
}

#titleStart {
  font-size: clamp(11px, 2vw, 15px);
  font-weight: 700;
  letter-spacing: .5em;
  color: #ffe9d6;
  text-shadow:
    0 0 14px rgba(255,180,130,.85),
    0 0 32px rgba(255,120,170,.5);
  animation: pulse 2.1s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:.95} 50%{opacity:.22} }

#titleVersion {
  font-size: 10px;
  color: rgba(255,200,150,.18);
  letter-spacing: .2em;
  margin-top: 38px;
}

/* ═══════════════════════════════════════════
   SETTINGS PANEL
═══════════════════════════════════════════ */
#settingsPanel {
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(3,2,10,.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  pointer-events: all;
  z-index: 50;
}

#settingsBox {
  width: min(540px, 95vw);
  max-height: 90vh;
  overflow-y: auto;
  background: rgba(10,6,26,.97);
  border: 1px solid rgba(255,120,170,.14);
  border-radius: 18px;
  padding: 0 0 24px 0;
  position: relative;
  box-shadow:
    0 0 80px rgba(180,90,255,.1),
    0 0 160px rgba(255,80,160,.06),
    inset 0 1px 0 rgba(255,200,160,.06);
}
#settingsBox::-webkit-scrollbar { width: 4px; }
#settingsBox::-webkit-scrollbar-track { background: transparent; }
#settingsBox::-webkit-scrollbar-thumb {
  background: rgba(255,120,170,.25);
  border-radius: 2px;
}

#settingsHeader {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 26px 24px 20px;
  position: sticky;
  top: 0;
  background: rgba(10,6,26,.98);
  border-bottom: 1px solid rgba(255,120,170,.08);
  border-radius: 18px 18px 0 0;
  z-index: 2;
}

#settingsTitle {
  font-size: 17px;
  font-weight: 900;
  letter-spacing: .3em;
  background: linear-gradient(90deg, #ff9e6e, #ff5f9e, #b86bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

#settingsClose {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: rgba(255,180,150,.45);
  font-size: 20px;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 6px;
  transition: color .18s, background .18s;
  pointer-events: all;
}
#settingsClose:hover {
  color: #ff5f9e;
  background: rgba(255,95,158,.08);
}

.sSection {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .4em;
  color: rgba(255,170,130,.35);
  text-transform: uppercase;
  padding: 18px 26px 8px;
  border-bottom: 1px solid rgba(255,120,170,.07);
}

.sRow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 26px;
  gap: 14px;
  border-bottom: 1px solid rgba(255,255,255,.025);
  transition: background .12s;
}
.sRow:last-of-type { border-bottom: none; }
.sRow:hover { background: rgba(255,255,255,.015); }

.sLabel {
  font-size: 13px;
  color: rgba(255,238,220,.7);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 190px;
}
.sValLabel {
  color: rgba(255,200,160,.9);
  font-weight: 700;
}

/* sliders */
.sSlider {
  flex: 1;
  min-width: 80px;
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  border-radius: 2px;
  background: rgba(255,120,170,.18);
  outline: none;
  cursor: pointer;
}
.sSlider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff9e6e, #ff5f9e);
  box-shadow: 0 0 8px rgba(255,100,160,.65);
  cursor: pointer;
  transition: transform .1s;
}
.sSlider::-webkit-slider-thumb:active { transform: scale(1.25); }
.sSlider::-moz-range-thumb {
  width: 15px; height: 15px; border-radius: 50%; border: none;
  background: linear-gradient(135deg, #ff9e6e, #ff5f9e);
  cursor: pointer;
}

/* button groups */
.sBtnGroup {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: flex-end;
}
.sBtn {
  padding: 5px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,120,170,.18);
  background: rgba(255,255,255,.03);
  color: rgba(255,230,210,.45);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  cursor: pointer;
  transition: all .15s;
  pointer-events: all;
}
.sBtn:hover {
  border-color: rgba(255,100,160,.45);
  color: rgba(255,240,225,.8);
  background: rgba(255,100,160,.06);
}
.sBtn.active {
  border-color: rgba(255,100,160,.7);
  background: linear-gradient(135deg, rgba(255,100,130,.22), rgba(180,90,255,.22));
  color: #fff;
  box-shadow: 0 0 12px rgba(255,80,140,.18);
}

/* toggles */
.sToggle {
  min-width: 52px;
  padding: 5px 13px;
  border-radius: 20px;
  border: 1px solid rgba(255,120,170,.18);
  background: rgba(255,255,255,.03);
  color: rgba(255,200,180,.4);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .15em;
  cursor: pointer;
  text-align: center;
  transition: all .18s;
  pointer-events: all;
}
.sToggle[data-on="true"] {
  border-color: rgba(255,100,160,.65);
  background: linear-gradient(135deg, rgba(255,100,130,.25), rgba(180,90,255,.25));
  color: #fff;
  box-shadow: 0 0 10px rgba(255,80,140,.18);
}

#settingsFooter {
  text-align: center;
  font-size: 9px;
  letter-spacing: .22em;
  color: rgba(255,180,140,.18);
  text-transform: uppercase;
  padding: 20px 24px 0;
}

/* ═══════════════════════════════════════════
   FPS COUNTER
═══════════════════════════════════════════ */
#fpsCounter {
  top: 12px;
  left: 12px;
  font-size: 12px;
  font-weight: 800;
  color: #7fff90;
  text-shadow: 0 0 8px rgba(80,255,120,.55);
  letter-spacing: .06em;
  pointer-events: none;
}

/* ═══════════════════════════════════════════
   MOBILE CONTROLS
═══════════════════════════════════════════ */
#mobileUI {
  inset: 0;
  pointer-events: none;
}

/* joystick */
#joystickZone {
  position: absolute;
  left: 18px;
  bottom: 180px;
  pointer-events: all;
}
#joystickBase {
  width: 110px; height: 110px;
  border-radius: 50%;
  background: rgba(255,255,255,.05);
  border: 2px solid rgba(255,180,140,.2);
  box-shadow: 0 0 18px rgba(255,120,160,.08);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
#joystickKnob {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(255,200,150,.9), rgba(255,80,140,.55));
  box-shadow: 0 0 16px rgba(255,110,150,.45);
  position: absolute;
  pointer-events: none;
  transition: box-shadow .1s;
}

/* action buttons (right side) */
#actionButtons {
  position: absolute;
  right: 14px;
  bottom: 110px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  pointer-events: none;
}

/* drive gas/brake (bottom right) */
#driveButtons {
  position: absolute;
  right: 130px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
  pointer-events: none;
}

/* look zone */
#lookZone {
  position: absolute;
  left: 150px;
  right: 190px;
  top: 0;
  bottom: 180px;
  pointer-events: all;
}

/* weapon bar */
#weaponBar {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 22px;
  display: flex;
  gap: 8px;
  pointer-events: none;
}
.wBtn {
  pointer-events: all;
  width: 50px; height: 50px;
  border-radius: 10px;
  border: 1px solid rgba(255,180,140,.22);
  background: rgba(255,255,255,.06);
  color: white;
  font-size: 20px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background .1s, border-color .1s;
}
.wBtn.active {
  border-color: rgba(255,100,160,.7);
  background: rgba(255,100,160,.18);
  box-shadow: 0 0 12px rgba(255,80,140,.25);
}
.wBtn:active { transform: scale(.88); }

/* mobile buttons */
.mBtn {
  pointer-events: all;
  width: 56px; height: 56px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,180,140,.25);
  background: rgba(255,255,255,.07);
  color: white;
  font-size: 21px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background .1s, transform .08s;
}
.mBtn:active {
  background: rgba(255,110,150,.28);
  transform: scale(.88);
}
.dBtn {
  width: 62px; height: 62px;
  font-size: 24px;
}
#mFire {
  background: rgba(255,40,60,.12);
  border-color: rgba(255,60,80,.45);
}
#mFire:active { background: rgba(255,40,60,.38); }
#mAim {
  background: rgba(80,200,255,.08);
  border-color: rgba(80,200,255,.35);
}
#mGas {
  background: rgba(80,255,120,.1);
  border-color: rgba(80,255,120,.35);
}
#mBrake {
  background: rgba(255,80,60,.1);
  border-color: rgba(255,80,60,.35);
}

/* landscape tweaks */
@media (max-height: 480px) {
  #joystickBase { width: 84px; height: 84px; }
  #joystickKnob { width: 34px; height: 34px; }
  .mBtn { width: 46px; height: 46px; font-size: 18px; }
  .dBtn { width: 52px; height: 52px; }
  #joystickZone { bottom: 120px; }
  #actionButtons { bottom: 70px; }
  #driveButtons { bottom: 18px; }
}