@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;700&display=swap');

:root {
  --yama-dark: #0a0000;
  --yama-blood: #8b0000;
  --yama-blood-glow: rgba(139, 0, 0, 0.2);
  --yama-gold: #c9a84c;
  --yama-gold-dim: rgba(201, 168, 76, 0.2);
  --yama-gold-bright: #e8c55a;
  --yama-text: #ffffff;
  --yama-text-dim: rgba(255, 255, 255, 0.7);
  --yama-cyan: #00ffff;
  --yama-surface: rgba(8, 8, 8, 0.95);
}

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

body {
  min-height: 100vh;
  background: var(--yama-dark);
  color: var(--yama-text);
  font-family: 'Cinzel', serif;
  overflow-x: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ===== Blood particles ===== */
.blood-particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}

.blood-particle {
  position: absolute;
  border-radius: 50%;
  background: var(--yama-blood);
  filter: blur(1px);
  opacity: 0;
}

@keyframes particleRise {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  15% {
    opacity: 0.6;
  }
  85% {
    opacity: 0.3;
  }
  100% {
    opacity: 0;
    transform: translateY(-30vh);
  }
}

/* ===== Blood vignette ===== */
.blood-vignette {
  position: fixed;
  inset: 0;
  background: radial-gradient(
    circle at 50% 50%,
    var(--yama-blood-glow) 0%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 1;
}

/* ===== Main layout ===== */
.main {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 56rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

/* ===== Yama dialogue panel (RuneLeagues style) ===== */
.yama-panel {
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  background: var(--yama-surface);
  border: 1px solid var(--yama-gold-dim);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 1);
  overflow: hidden;
  min-height: 325px;
}

/* Yama image column */
.yama-image-col {
  position: relative;
  width: 16rem;
  min-width: 12rem;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  border-right: 1px solid var(--yama-gold-dim);
}

.yama-glow {
  position: absolute;
  inset: 0;
  background: var(--yama-blood-glow);
  filter: blur(40px);
  border-radius: 50%;
}

/* Two-layer split for talking animation */
.yama-layers {
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.yama-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: contrast(1.25) brightness(0.75);
  transition: filter 0.3s;
}

/* Upper face — everything above the jaw line (~62% from top) */
.yama-upper {
  clip-path: inset(0 0 38% 0);
  z-index: 3;
}

/* Lower jaw — everything below the jaw line */
.yama-lower {
  clip-path: inset(62% 0 0 0);
  z-index: 2;
  transform-origin: center 62%;
  transition: transform 0.08s ease;
}

/* Speaking state — jaw bounces open/closed */
.yama-panel.speaking .yama-lower {
  animation: jawTalk 0.28s ease-in-out infinite;
}

.yama-panel.speaking .yama-img {
  filter: contrast(1.4) brightness(0.9);
}

@keyframes jawTalk {
  0%, 100% {
    transform: translateY(0);
  }
  35% {
    transform: translateY(4px);
  }
  65% {
    transform: translateY(1px);
  }
}

/* Yama text column */
.yama-text-col {
  flex: 1;
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
}

.yama-label {
  display: block;
  font-size: 1.125rem;
  color: var(--yama-gold);
  text-transform: uppercase;
  letter-spacing: 0.3em;
  margin-bottom: 0.75rem;
  opacity: 0.9;
}

.yama-response {
  flex: 1;
}

#responseText {
  font-size: 1.5rem;
  line-height: 1.5;
  color: var(--yama-text);
  min-height: 4rem;
}

/* Per-character spans for typewriter */
#responseText .char {
  opacity: 0;
  transition: opacity 0.05s ease;
}

#responseText .char.visible {
  opacity: 1;
}

/* Action area */
.yama-action {
  margin-top: 2rem;
  height: 3rem;
  display: flex;
  align-items: center;
}

.continue-btn {
  background: none;
  border: none;
  color: var(--yama-cyan);
  font-family: 'Cinzel', serif;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: color 0.3s;
}

.continue-btn:hover {
  color: var(--yama-gold-bright);
}

.continue-btn .arrow {
  color: var(--yama-gold);
  font-weight: 400;
  transition: transform 0.3s, color 0.3s;
}

.continue-btn:hover .arrow {
  transform: translateX(8px);
  color: var(--yama-gold-bright);
}

/* ===== Controls ===== */
.controls {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mode-tabs {
  display: flex;
  border: 1px solid var(--yama-gold-dim);
  border-radius: 0;
  overflow: hidden;
}

.mode-tab {
  flex: 1;
  padding: 0.75rem 0.5rem;
  background: rgba(8, 8, 8, 0.8);
  color: var(--yama-gold);
  border: none;
  font-family: 'Cinzel', serif;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s;
  opacity: 0.6;
}

.mode-tab:not(:last-child) {
  border-right: 1px solid var(--yama-gold-dim);
}

.mode-tab:hover {
  opacity: 0.8;
  background: rgba(30, 10, 10, 0.8);
}

.mode-tab.active {
  opacity: 1;
  background: rgba(60, 10, 10, 0.6);
  color: var(--yama-gold-bright);
  text-shadow: 0 0 10px rgba(201, 168, 76, 0.3);
}

/* Input areas */
.input-area {
  display: flex;
  gap: 0.5rem;
}

.input-area.hidden {
  display: none;
}

input[type="text"] {
  flex: 1;
  padding: 0.875rem 1.25rem;
  background: rgba(8, 8, 8, 0.9);
  border: 1px solid var(--yama-gold-dim);
  color: var(--yama-text);
  font-family: 'Cinzel', serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
}

input[type="text"]:focus {
  border-color: var(--yama-gold);
  box-shadow: 0 0 15px rgba(201, 168, 76, 0.15);
}

input[type="text"]::placeholder {
  color: rgba(201, 168, 76, 0.35);
}

.ask-btn {
  padding: 0.875rem 1.5rem;
  background: rgba(60, 10, 10, 0.6);
  border: 1px solid var(--yama-gold-dim);
  color: var(--yama-gold);
  font-family: 'Cinzel', serif;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s;
  white-space: nowrap;
}

.ask-btn:hover {
  background: rgba(80, 15, 15, 0.8);
  border-color: var(--yama-gold);
  box-shadow: 0 0 20px rgba(201, 168, 76, 0.15);
}

.ask-btn:active {
  transform: translateY(1px);
}

.ask-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.ask-btn.full-width {
  width: 100%;
}

/* ===== Mobile ===== */
@media (max-width: 640px) {
  .yama-panel {
    flex-direction: column;
    min-height: auto;
  }

  .yama-image-col {
    width: 100%;
    min-width: unset;
    height: 12rem;
    border-right: none;
    border-bottom: 1px solid var(--yama-gold-dim);
  }

  .yama-text-col {
    padding: 1.5rem;
  }

  #responseText {
    font-size: 1.15rem;
  }

  .mode-tab {
    font-size: 0.7rem;
    padding: 0.6rem 0.4rem;
  }

  .input-area {
    flex-direction: column;
  }
}