/* Shared page rules and game-wide colors. */

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

:root {
  --night:    #0b0d17;
  --deep:     #12141f;
  --panel:    rgba(8, 10, 22, 0.94);
  --border:   rgba(240, 200, 80, 0.40);
  --gold:     #f0c850;
  --gold-dim: rgba(240, 200, 80, 0.15);
  --red:      #e05050;
  --green:    #50d890;
  --text:     #ddd8c0;
  --text-dim: rgba(221, 216, 192, 0.55);
  --hud-h:    52px;
  --dlg-h:    140px;
  --panel-w:  210px;
  --world-w:  3400px;
  --font:     'Cinzel', 'Palatino Linotype', 'Book Antiqua', serif;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--night);
  font-family: var(--font);
  color: var(--text);
  user-select: none;
}

.screen { position: fixed; inset: 0; }
.hidden { display: none !important; }

/* Opening title screen before the map appears. */
#screen-start {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 70%, #0f1e30 0%, #06080f 100%);
  z-index: 900;
}

.title-deco-bg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
  letter-spacing: 30px;
  color: rgba(240,200,80,0.04);
  pointer-events: none;
  white-space: nowrap;
}

.start-box {
  position: relative;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  animation: fadeUp .8s ease-out;
}

@keyframes fadeUp {
  from { opacity:0; transform: translateY(30px); }
  to   { opacity:1; transform: translateY(0);    }
}

.start-eyebrow {
  font-size: 12px;
  letter-spacing: 6px;
  color: var(--gold);
  opacity: .7;
  text-transform: uppercase;
}

.title-main {
  font-size: 64px;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: 6px;
  line-height: 1;
  text-shadow: 0 0 60px rgba(240,200,80,.4), 0 3px 0 #000;
}

.title-sub {
  font-size: 16px;
  letter-spacing: 8px;
  color: var(--text-dim);
  font-style: italic;
}

.start-desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 2;
  letter-spacing: .5px;
}

.btn-gold {
  background: var(--gold-dim);
  border: 1px solid var(--gold);
  border-radius: 8px;
  color: var(--gold);
  font-size: 17px;
  font-family: var(--font);
  letter-spacing: 4px;
  padding: 13px 48px;
  cursor: pointer;
  transition: background .2s, box-shadow .2s, transform .12s;
  margin-top: 8px;
}
.btn-gold:hover {
  background: rgba(240,200,80,.28);
  box-shadow: 0 0 28px rgba(240,200,80,.35);
  transform: scale(1.04);
}
.btn-gold:active { transform: scale(.97); }

/* The land selection map and the opening letter. */
#screen-levels {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  background: radial-gradient(120% 100% at 50% 30%, #203b2e 0%, #0b1416 55%, #06080f 100%);
  z-index: 850;
  padding: 30px 20px 50px;
}

.levels-header {
  text-align: center;
}

.levels-title {
  font-size: 48px;
  font-weight: 900;
  color: var(--gold);
  letter-spacing: 4px;
  text-shadow: 0 0 40px rgba(240,200,80,.3);
  margin-bottom: 8px;
}

.levels-sub {
  font-size: 14px;
  color: var(--text-dim);
  letter-spacing: 2px;
}

#level-map {
  position: relative;
  width: min(1100px, 92vw);
  height: min(520px, 62vh);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(45, 76, 60, 0.18) 1px, transparent 1px),
    linear-gradient(0deg, rgba(45, 76, 60, 0.18) 1px, transparent 1px),
    radial-gradient(520px 260px at 18% 72%, rgba(62, 105, 70, 0.48), transparent 72%),
    radial-gradient(360px 220px at 72% 32%, rgba(98, 89, 58, 0.36), transparent 70%),
    linear-gradient(145deg, rgba(25, 35, 31, 0.98), rgba(9, 17, 21, 0.98));
  background-size: 54px 54px, 54px 54px, auto, auto, auto;
  border: 1px solid rgba(240, 200, 80, 0.30);
  box-shadow: inset 0 0 0 3px rgba(0,0,0,.22), inset 0 0 50px rgba(0, 0, 0, 0.45), 0 18px 50px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

#level-map::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(115deg, transparent 0 42%, rgba(240,200,80,.08) 42% 43%, transparent 43% 100%),
    repeating-linear-gradient(110deg, rgba(255,255,255,0.035) 0 3px, transparent 3px 14px),
    repeating-linear-gradient(20deg, rgba(0,0,0,0.07) 0 2px, transparent 2px 12px);
  opacity: 0.72;
  pointer-events: none;
}

#level-map::after {
  content: '';
  position: absolute;
  inset: 14px;
  border: 1px dashed rgba(240, 200, 80, 0.18);
  border-radius: 6px;
  pointer-events: none;
}

.map-trails {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.map-trail {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.map-trail.shadow {
  stroke: rgba(0,0,0,.58);
  stroke-width: 3.8;
  stroke-dasharray: 1.2 2.4;
}

.map-trail.main {
  stroke: rgba(217, 181, 88, .72);
  stroke-width: 1.4;
  stroke-dasharray: 1.1 2.5;
}

.map-label {
  position: absolute;
  z-index: 2;
  color: rgba(240,200,80,.48);
  font-size: 10px;
  letter-spacing: 3px;
  pointer-events: none;
}

.map-label-nw { top: 24px; left: 28px; }
.map-label-se { right: 26px; bottom: 24px; }

.letter-overlay {
  position: fixed;
  inset: 0;
  z-index: 900;
  display: grid;
  place-items: center;
  padding: 26px;
  background: radial-gradient(70% 62% at 50% 44%, rgba(18, 15, 9, 0.42), rgba(2, 4, 8, 0.78));
  cursor: pointer;
  animation: letterVeilIn .28s ease-out;
}

.letter-paper {
  width: min(820px, 92vw);
  max-height: min(78vh, 720px);
  overflow-y: auto;
  padding: clamp(26px, 4vw, 46px);
  color: #3c2a16;
  font-family: 'Palatino Linotype', 'Book Antiqua', Georgia, serif;
  font-size: clamp(15px, 1.55vw, 18px);
  line-height: 1.65;
  background:
    linear-gradient(100deg, rgba(255,255,255,.18), transparent 24%, rgba(120, 74, 28, .08) 68%, transparent),
    repeating-linear-gradient(0deg, rgba(100, 62, 24, .035) 0 1px, transparent 1px 28px),
    #ead6aa;
  border: 1px solid rgba(92, 55, 19, .72);
  border-radius: 6px;
  box-shadow: 0 28px 90px rgba(0,0,0,.62), inset 0 0 0 8px rgba(86, 48, 18, .07);
  transform-origin: center;
  animation: letterUnfold .62s cubic-bezier(.2,.9,.18,1.05);
  user-select: text;
}

.letter-paper p + p {
  margin-top: 16px;
}

.letter-paper strong {
  font-weight: 700;
}

.letter-paper em {
  font-style: italic;
}

.letter-paper hr {
  border: 0;
  border-top: 1px solid rgba(92, 55, 19, .28);
  margin: 22px 0;
}

.final-letter-paper {
  width: min(980px, 94vw);
  max-height: min(82vh, 780px);
  font-size: clamp(14px, 1.35vw, 17px);
}

.letter-hint {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(240, 200, 80, .82);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  pointer-events: none;
  animation: blink 1.3s ease-in-out infinite;
}

.letter-overlay.dismiss {
  animation: letterVeilOut .28s ease-in forwards;
}

.letter-overlay.dismiss .letter-paper {
  animation: letterFold .28s ease-in forwards;
}

@keyframes letterVeilIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes letterVeilOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes letterUnfold {
  from { opacity: 0; transform: translateY(22px) scaleY(.18) rotateX(24deg); }
  58% { opacity: 1; transform: translateY(0) scaleY(1.04) rotateX(0); }
  to { opacity: 1; transform: translateY(0) scaleY(1) rotateX(0); }
}

@keyframes letterFold {
  from { opacity: 1; transform: translateY(0) scaleY(1); }
  to { opacity: 0; transform: translateY(16px) scaleY(.72); }
}

.level-node {
  position: absolute;
  appearance: none;
  padding: 0;
  display: grid;
  place-items: center;
  border: 1px solid rgba(240, 200, 80, 0.58);
  color: var(--gold);
  font-family: var(--font);
  cursor: pointer;
  transform: translate(-50%, -50%) rotate(var(--tilt));
  box-shadow: 0 13px 24px rgba(0, 0, 0, 0.55), inset 0 0 0 3px rgba(255,255,255,.03);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, filter .2s ease;
  z-index: 3;
  overflow: visible;
}

.level-node:hover {
  border-color: rgba(240, 200, 80, 0.9);
  box-shadow: 0 18px 30px rgba(0, 0, 0, 0.62), 0 0 24px rgba(240, 200, 80, 0.24), inset 0 0 0 3px rgba(255,255,255,.05);
  filter: saturate(1.18) brightness(1.08);
  transform: translate(-50%, -50%) rotate(0deg) scale(1.06);
}

.level-node::before {
  content: '';
  position: absolute;
  inset: 7px;
  border: 1px dashed rgba(255,255,255,.16);
  border-radius: inherit;
  pointer-events: none;
}

.level-node::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(130deg, rgba(255,255,255,.14), transparent 34%),
    repeating-linear-gradient(150deg, transparent 0 9px, rgba(0,0,0,.11) 9px 12px);
  mix-blend-mode: screen;
  opacity: .55;
  pointer-events: none;
  clip-path: inherit;
}

.level-node.size-sm {
  width: 92px;
  height: 82px;
  border-radius: 35% 24% 31% 28%;
  clip-path: polygon(14% 7%, 86% 0, 100% 34%, 84% 92%, 30% 100%, 0 72%, 5% 24%);
}

.level-node.size-md {
  width: 122px;
  height: 108px;
  border-radius: 25% 36% 24% 31%;
  clip-path: polygon(10% 14%, 44% 0, 92% 10%, 100% 58%, 76% 100%, 22% 88%, 0 48%);
}

.level-node.size-lg {
  width: 152px;
  height: 126px;
  border-radius: 34% 22% 32% 26%;
  clip-path: polygon(8% 18%, 34% 0, 82% 7%, 100% 43%, 88% 88%, 48% 100%, 9% 82%, 0 40%);
}

.terrain-ruins { background: linear-gradient(145deg, #3b5145, #17231f 72%); }
.terrain-grove { background: linear-gradient(145deg, #466b4b, #182a23 74%); }
.terrain-rift  { background: linear-gradient(145deg, #5e5840, #20372c 70%); }
.terrain-tower { background: linear-gradient(145deg, #4d665d, #1d2630 72%); }
.terrain-gate  { background: linear-gradient(145deg, #6a5547, #202127 74%); }

.level-node-num {
  position: absolute;
  z-index: 4;
  top: 9px;
  left: 11px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid rgba(240,200,80,.42);
  border-radius: 999px;
  background: rgba(0,0,0,.32);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-shadow: 0 2px 0 #000, 0 0 18px rgba(240,200,80,.45);
}

.level-node-title {
  position: relative;
  z-index: 3;
  display: block;
  width: 82%;
  color: rgba(255, 234, 176, .96);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: .7px;
  text-align: center;
  text-shadow: 0 2px 0 #000, 0 0 10px rgba(0,0,0,.75);
  overflow-wrap: anywhere;
  transform: translateY(2px);
}

.level-node.size-lg .level-node-title {
  font-size: 12px;
  width: 76%;
}

.level-node-mark {
  position: absolute;
  width: 24px;
  height: 5px;
  bottom: 21%;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(240,200,80,.44);
  box-shadow: 18px -18px 0 rgba(240,200,80,.14), -15px -8px 0 rgba(255,255,255,.08);
}

/* Full-screen win and lose messages. */
.overlay-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6,8,15,.88);
  z-index: 800;
  backdrop-filter: blur(4px);
}

.overlay-box {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  animation: fadeUp .5s ease-out;
}

.overlay-icon { font-size: 72px; }
.overlay-title {
  font-size: 48px;
  font-weight: 900;
  letter-spacing: 4px;
  text-shadow: 0 2px 0 #000;
}
.overlay-title.gold { color: var(--gold); }
.overlay-title.red  { color: var(--red);  }
.overlay-sub { font-size: 15px; color: var(--text-dim); line-height: 2; }

/* Main game screen that contains the world, HUD, choices, and dialogue. */
#screen-game { z-index: 10; }

/* Health display at the top of the game. */
#hud {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--hud-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  background: linear-gradient(180deg, rgba(6,8,20,.98) 0%, rgba(6,8,20,.80) 100%);
  border-bottom: 1px solid var(--border);
  z-index: 500;
  gap: 12px;
}

#hud-hero, #hud-enemy {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 14px;
  min-width: 180px;
}

/* Sigma's health group. */
#hud-hero {
  order: 1;
}

#hud-hero-name {
  font-size: 14px;
  font-weight: bold;
  color: var(--green);
  letter-spacing: .5px;
}

/* Current enemy's health group. */
#hud-enemy {
  order: 2;
}

#hud-enemy-name {
  font-size: 14px;
  font-weight: bold;
  color: var(--red);
  white-space: nowrap;
  letter-spacing: .5px;
}

.heart {
  font-size: 17px;
  display: inline-block;
  transition: opacity .25s, transform .25s;
}
.heart.lost { opacity: .2; transform: scale(.7); }

/* The visible window into the larger side-scrolling world. */
#viewport {
  position: fixed;
  top: var(--hud-h);
  left: 0; right: 0;
  bottom: var(--dlg-h);
  overflow: hidden;
}

#world {
  position: absolute;
  width: var(--world-w);
  height: 100%;
  top: 0; left: 0;
  will-change: transform;
}

/* Smooth zoom used when a battle starts. */
#world.zoom {
  transition: transform .6s cubic-bezier(.25,.46,.45,.94),
              transform-origin .6s;
}

/* Forest background layers that move at different depths. */
.bg-layer {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-repeat: repeat-x;
  background-position: bottom left;
  background-size: auto 100%;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#bg0  { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_0.png'); }
#bg1  { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_1.png'); }
#bg2  { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_2.png'); }
#bg3  { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_3.png'); }
#bg4  { background-image: url('assets/animations/background/forest/layers/bg_forest_lights_4.png'); opacity: .75; }
#bg5  { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_5.png'); }
#bg6  { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_6.png'); }
#bg7  { background-image: url('assets/animations/background/forest/layers/bg_forest_lights_7.png'); opacity: .75; }
#bg8  { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_8.png'); }
#bg9  { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_9.png'); }
#bg10 { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_10.png'); }
#bg11 { background-image: url('assets/animations/background/forest/layers/bg_forest_layer_11.png'); }

#ground {
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 6px;
  background: linear-gradient(90deg, #152a18, #2a5430, #152a18);
  box-shadow: 0 -3px 16px rgba(50,200,90,.25);
  z-index: 50;
}

/* Sigma sprite placement. */
#hero {
  position: absolute;
  bottom: 6px;
  z-index: 30;
  image-rendering: pixelated;
}

#hero-canvas {
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  transform-origin: bottom center;
}

/* Enemy sprite placement and shadows. */
.enemy-slot {
  position: absolute;
  bottom: 6px;
  z-index: 28;
  display: flex;
  flex-direction: column;
  align-items: center;
  image-rendering: pixelated;
}

.enemy-canvas {
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  transform-origin: bottom center;
}

.enemy-shadow {
  width: 60px; height: 10px;
  background: radial-gradient(ellipse, rgba(0,0,0,.55) 0%, transparent 70%);
  margin-top: -4px;
}

/* Quick movement effects for Sigma during battle. */
#hero.anim-attack { animation: heroAttack .38s ease-out; }
#hero.anim-jump   { animation: heroJump   .44s ease-out; }
#hero.anim-hurt   { animation: heroHurt   .44s ease-out; }
#hero.anim-vjump  { animation: heroJump   .52s ease-out; }

@keyframes heroAttack {
  0%   { transform: translateX(0); }
  25%  { transform: translateX(44px); }
  65%  { transform: translateX(32px); }
  100% { transform: translateX(0); }
}
@keyframes heroJump {
  0%   { transform: translateY(0); }
  38%  { transform: translateY(-46px); }
  100% { transform: translateY(0); }
}
@keyframes heroHurt {
  0%   { transform: translateX(0);    filter: brightness(1); }
  15%  { transform: translateX(-10px); filter: brightness(3) saturate(0); }
  35%  { transform: translateX(8px);  filter: brightness(2) sepia(1) hue-rotate(-20deg); }
  55%  { transform: translateX(-5px); filter: brightness(1.5); }
  80%  { transform: translateX(3px);  filter: brightness(1); }
  100% { transform: translateX(0);    filter: brightness(1); }
}

/* Quick movement effects for enemies during battle. */
.enemy-slot.anim-hurt   .enemy-canvas { animation: enemyHurt   .40s ease-out; }
.enemy-slot.anim-attack .enemy-canvas { animation: enemyAttack .38s ease-out; }

@keyframes enemyHurt {
  0%   { filter: brightness(4) saturate(0); transform: translateX(0) scaleX(1); }
  20%  { filter: brightness(3) saturate(0); transform: translateX(10px) scaleX(.95); }
  55%  { filter: brightness(1.5);           transform: translateX(-6px); }
  100% { filter: brightness(1);             transform: translateX(0) scaleX(1); }
}
@keyframes enemyAttack {
  0%   { transform: translateX(0) scale(1); }
  28%  { transform: translateX(-36px) scale(1.14); }
  65%  { transform: translateX(-24px) scale(1.07); }
  100% { transform: translateX(0) scale(1); }
}

/* Floating damage, miss, and failure labels. */
.dmg-popup {
  position: absolute;
  font-size: 20px;
  font-weight: 900;
  font-family: var(--font);
  pointer-events: none;
  z-index: 100;
  animation: dmgFloat .95s ease-out forwards;
  text-shadow: 1px 1px 0 #000, -1px 1px 0 #000, 0 2px 0 #000;
}
.dmg-popup.crit   { color: #ffd700; font-size: 26px; }
.dmg-popup.normal { color: #ffffff; }
.dmg-popup.miss   { color: #60d0ff; }
.dmg-popup.fail   { color: #ff6060; }

@keyframes dmgFloat {
  0%   { transform: translateY(0)    scale(1);   opacity: 1; }
  55%  { transform: translateY(-54px) scale(1.1); opacity: 1; }
  100% { transform: translateY(-80px) scale(.8);  opacity: 0; }
}

.hint-toggle {
  position: fixed;
  top: calc(var(--hud-h) + 12px);
  right: 14px;
  z-index: 650;
  border: 1px solid rgba(240,200,80,.5);
  border-radius: 8px;
  background: rgba(24, 17, 9, .78);
  color: var(--gold);
  font-family: var(--font);
  font-size: 11px;
  padding: 8px 10px;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0,0,0,.42);
}

.hint-toggle:hover {
  background: rgba(240,200,80,.16);
  border-color: var(--gold);
}

/* The answer choice panel shown during a question. */
#move-panel {
  position: fixed;
  left: 0;
  top: 50%;
  transform: translate(-115%, -50%);
  width: var(--panel-w);
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: 0 14px 14px 0;
  padding: 14px 12px;
  z-index: 600;
  transition: transform .42s cubic-bezier(.34,1.56,.64,1);
  box-shadow: 6px 0 30px rgba(0,0,0,.7);
}

#move-panel.open {
  transform: translate(0, -50%);
}

#move-panel-header {
  text-align: center;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--gold);
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  margin-bottom: 10px;
}

#move-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.move-btn {
  background: rgba(240,200,80,.07);
  border: 1px solid rgba(240,200,80,.28);
  border-radius: 8px;
  color: var(--text);
  padding: 10px 12px;
  font-size: 12.5px;
  font-family: var(--font);
  cursor: pointer;
  text-align: left;
  line-height: 1.4;
  transition: background .15s, border-color .15s, transform .1s;
  word-break: keep-all;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  min-height: 44px;
}

.move-btn:hover:not(:disabled) {
  background: rgba(240,200,80,.18);
  border-color: var(--gold);
  transform: translateX(5px);
}
.move-btn:active:not(:disabled) { transform: translateX(3px) scale(.97); }
.move-btn:disabled { opacity: .45; cursor: default; }

.move-btn[data-effect="crit"]   { border-left: 3px solid #ffd700; }
.move-btn[data-effect="normal"] { border-left: 3px solid #88ccff; }
.move-btn[data-effect="dodge"]  { border-left: 3px solid #88ffcc; }
.move-btn[data-effect="fail"]   { border-left: 3px solid #ff8888; }

body.hint-colors-off .move-btn[data-effect] {
  border-left-color: #8a5d2e;
}

.move-num {
  flex: 0 0 auto;
  color: var(--gold);
  font-weight: 900;
}

.move-label {
  min-width: 0;
}

.move-math {
  color: rgba(255, 234, 176, .98);
  white-space: nowrap;
}

.move-btn .katex {
  font-size: 1.02em;
}

/* Bottom dialogue area for questions and feedback. */
#dialogue {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: var(--dlg-h);
  background: linear-gradient(0deg, rgba(4,6,16,.99) 0%, rgba(8,10,24,.93) 100%);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  z-index: 500;
  box-shadow: 0 -6px 30px rgba(0,0,0,.6);
}

.dlg-avatar {
  width: 88px;
  height: 88px;
  object-fit: contain;
  flex-shrink: 0;
  image-rendering: pixelated;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,255,255,.03);
}

#dlg-body {
  flex: 1;
  display: flex;
  align-items: center;
  min-height: 88px;
}

#dlg-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--text);
  max-height: 112px;
  overflow-y: auto;
  width: 100%;
}

.dlg-question {
  white-space: pre-line;
}

.dlg-formula {
  color: rgba(240, 200, 80, 0.95);
  display: block;
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 2px;
}

/* Keeps formulas compact inside the dialogue area. */
#dlg-text .katex { font-size: 1em; }
#dlg-text .katex-display {
  margin: 0;
  text-align: left;
}

#dlg-hint {
  position: absolute;
  bottom: 6px;
  right: 18px;
  font-size: 11px;
  color: rgba(240,200,80,.5);
  animation: blink 1.3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes blink {
  0%, 100% { opacity: .4; }
  50%       { opacity: 1;  }
}