/* =================================
   CLEANED & CONSOLIDATED STYLES.CSS
   ================================= */

/* ========== BASE ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

canvas { display: block; }

/* ========== TOGGLE UI BUTTON (upper right) ========== */
.toggle-button {
  position: fixed;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 8px;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  pointer-events: auto !important;
}

.toggle-button:hover { background: rgba(255,255,255,0.2); transform: scale(1.05); }
.toggle-button:active { transform: scale(0.95); }

.toggle-subtitles { top: 60px; }
.toggle-subtitles.off { opacity: 0.4; }

/* ========== HIDE UI STATE ========== */
.ui-hidden .ui-container { opacity: 0; transform: translateX(-50%) translateY(20px); pointer-events: none !important; visibility: hidden; }
.ui-hidden .ui-container * { pointer-events: none !important; }

/* ========== VRM CLICK EFFECTS ========== */
.vrm-click-effect {
  position: fixed;
  width: 60px;
  height: 60px;
  border: 2px solid rgba(255,255,255,0.8);
  border-radius: 50%;
  pointer-events: none;
  z-index: 500;
  opacity: 0;
  transform: translate(-50%,-50%) scale(0.3);
  transition: all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
}
.vrm-click-effect.animate { opacity: 1; transform: translate(-50%,-50%) scale(1.2); }
.vrm-click-effect.fade-out { opacity: 0; transform: translate(-50%,-50%) scale(1.5); }

.vrm-click-effect-pulse {
  position: fixed;
  width: 40px;
  height: 40px;
  background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0) 70%);
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 50%;
  pointer-events: none;
  z-index: 500;
  opacity: 0;
  transform: translate(-50%,-50%) scale(0.5);
  animation: vrmClickPulse 0.5s cubic-bezier(0.25,0.46,0.45,0.94) forwards;
}
@keyframes vrmClickPulse { 0%{opacity:0;transform:translate(-50%,-50%)scale(0.5)}50%{opacity:1;transform:translate(-50%,-50%)scale(1.1)}100%{opacity:0;transform:translate(-50%,-50%)scale(1.4)} }

/* ========== SUBTITLE ========== */
#subtitle-container {
  position: absolute;
  bottom: 8%;
  left: 15%;
  right: 15%;
  max-width: 95%;
  transform: translateY(5%);
  text-align: center;
  font-size: 30px;
  color: whitesmoke;
  background: rgba(0,0,0,0);
  -webkit-text-stroke: 2px rgba(197,40,34,0.651);
  pointer-events: none;
  font-family: 'Coiny Regular', sans-serif;
  z-index: 10;
  opacity: 0;
  transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
}
#subtitle-container.visible { opacity: 1; }

/* ========== UI CONTAINER ========== */
.ui-container {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  padding: 0;
  max-width: 600px;
  width: 90vw;
  background: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
  pointer-events: auto !important;
  z-index: 999;
}

/* ========== IMAGE PREVIEW ========== */
.image-preview-section {
  width: 100%;
  display: none;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 24px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  z-index: 1001;
  position: relative;
}
.image-preview-section.visible { display:flex; }

.image-thumbnail { width:60px; height:60px; object-fit:cover; border-radius:8px; border:1px solid rgba(255,255,255,0.2); z-index:1002; }
.image-info { flex:1; color: rgba(255,255,255,0.8); font-size:0.9rem; z-index:1003; }
.remove-image-btn {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: white;
  border-radius: 6px;
  width: 24px;
  height: 24px;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer; font-size:14px; transition: all 0.18s; z-index:1004; pointer-events:auto !important;
}
.remove-image-btn:hover { background: rgba(255,100,100,0.3); border-color: rgba(255,100,100,0.5); }

/* ========== INPUT SECTION (single-line by default) ========== */
.input-section {
  width: 100%;
  display: flex;
  align-items: center;    /* center vertically in single-line mode */
  gap: 0;
  z-index: 1000;
  position: relative;
  min-height: 50px;      /* single line baseline */
  height: auto;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 25px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  transition: padding 150ms cubic-bezier(0.2,0,0.2,1), border-radius 150ms cubic-bezier(0.2,0,0.2,1), background 150ms cubic-bezier(0.2,0,0.2,1);
  padding-left: 8px;
  padding-right: 8px;
}

/* multiline state: grid that places text on top row and buttons on bottom row */
.input-section.multiline {
  display: grid;
  grid-template-columns: auto 1fr auto;  /* left | text | right */
  grid-template-rows: auto auto;          /* text row | buttons row */
  grid-template-areas:
    "text text text"
    "left . right";
  align-items: end;                       /* bottom align buttons row */
  padding: 8px 12px;                      /* stable padding to avoid reflow delta */
}

/* text area wrapper (middle area) */
.text-input-wrapper { flex: 1; display:flex; align-items:center; order:1; grid-area: text; }

/* left and right button containers */
.left-buttons { display:flex; gap:4px; align-items:center; padding: 0 8px; transition: transform 180ms cubic-bezier(0.2,0,0.2,1); will-change: transform; }
.input-section.multiline .left-buttons { grid-area: left; align-self: end; padding: 8px 12px; transform: translateY(0); }

.right-buttons { display:flex; gap:4px; align-items:center; padding: 0 8px; order:2; transition: transform 180ms cubic-bezier(0.2,0,0.2,1); will-change: transform; }
.input-section.multiline .right-buttons { grid-area: right; align-self:end; padding: 8px 12px; margin-left:0; transform: translateY(0); }

/* ========== TEXTAREA / INPUT ========== */
/* Keep padding and line-height constant between single and multiline to avoid clipping */
#text-input {
  width: 100%;
  border: none;
  background: transparent;
  color: white;
  font-size: 1rem;
  font-family: inherit;
  line-height: 1.2;                   /* explicit, stable */
  padding: 8px 12px;                  /* kept constant across modes */
  border-radius: 0;
  outline: none;
  resize: none;
  min-height: 22px;                   /* safety floor */
  max-height: 120px;
  overflow-y: hidden;                 /* toggled by JS when needed */
  overflow-x: hidden;                 /* prevent horizontal scroll */
  overflow-wrap: break-word;          /* allow safe breaking of long runs */
  word-break: normal;
  white-space: pre-wrap;              /* preserve newlines but allow wrapping */
  transition: height 150ms cubic-bezier(0.2,0,0.2,1);
  pointer-events: auto !important;
  box-sizing: border-box;
  max-width: 100%;
}

#text-input::placeholder { color: rgba(255,255,255,0.6); }

/* scrollbar styling */
#text-input::-webkit-scrollbar { width: 6px; }
#text-input::-webkit-scrollbar-track { background: rgba(255,255,255,0.05); border-radius: 3px; }
#text-input::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 3px; }
#text-input::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.4); }

/* ========== BUTTONS ========== */
button, .plus-upload {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: 12px;
  transition: transform 0.12s ease, background 0.12s ease;
  display:flex; align-items:center; justify-content:center;
  min-width: 32px; min-height: 32px; pointer-events: auto !important;
}

button:hover, .plus-upload:hover { background: rgba(255,255,255,0.15); transform: scale(1.05); }
button:active, .plus-upload:active { transform: scale(0.95); }

.send-button {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
}
.send-button:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.3); }
.send-button:disabled { opacity: 0.4; cursor: not-allowed; }
.send-button:disabled:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.15); transform:none; }

/* plus upload label behaves like the other buttons but slightly tighter */
.plus-upload {
  padding: 4px;
  min-width: auto;
  min-height: auto;
  border-radius: 12px;
  margin-right: 2px;
}
.input-section.multiline .plus-upload { margin-right: 0; }

/* hidden file input */
#image-input { pointer-events: none; }

/* ========== ICONS ========== */
.icon { width: 16px; height: 16px; filter: brightness(0) saturate(100%) invert(100%) opacity(0.8); transition: filter 0.12s ease; pointer-events:none; }
button:hover .icon, .plus-upload:hover .icon { filter: brightness(0) saturate(100%) invert(100%) opacity(1); }

/* ========== COOL-ONS ========== */
.vrm-click-cooldown { pointer-events: none !important; opacity: 0.6; transition: opacity 0.1s ease; }
.vrm-click-active { opacity: 1; }

/* ========== MOBILE ========== */
@media (max-width: 768px) {
  .ui-container { width: 95vw; bottom: 20px; }
  #text-input { font-size: 16px; padding: 12px 16px; transition-duration: 160ms; }
  .left-buttons, .right-buttons { gap: 6px; padding: 6px 10px; }
  button, .plus-upload { min-width: 36px; min-height: 36px; padding: 8px; }
  .icon { width: 16px; height: 16px; }
}

/* ========== ENHANCED FONT SMOOTHING ========== */
.input-section, #text-input {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== IMPROVED INPUT SECTION ========== */
.input-section {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0;
  z-index: 1000;
  position: relative;
  min-height: 50px;
  height: auto;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 25px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  padding-left: 8px;
  padding-right: 8px;
  /* Smooth transition only for visual properties */
  transition: border-radius 150ms ease, background 150ms ease;
}

/* Multiline state */
.input-section.multiline {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-rows: auto auto;
  grid-template-areas:
    "text text text"
    "left . right";
  align-items: end;
  padding: 8px 12px;
  border-radius: 20px; /* Slightly less rounded when multiline */
}

/* ========== TEXTAREA WITH PROPER NO-WRAP HANDLING ========== */
#text-input {
  width: 100%;
  border: none;
  background: transparent;
  color: white;
  font-size: 1rem;
  font-family: inherit;
  line-height: 1.2;
  padding: 8px 12px;
  border-radius: 0;
  outline: none;
  resize: none;
  min-height: 22px;
  max-height: 120px;
  overflow-y: hidden;
  overflow-x: hidden; /* Always hidden - no horizontal scrolling */
  overflow-wrap: break-word;
  word-break: normal;
  /* Default to nowrap - JS will change this */
  white-space: nowrap;
  /* Smooth height transition */
  transition: height 120ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
  pointer-events: auto !important;
  box-sizing: border-box;
  max-width: 100%;
  /* Performance optimizations */
  will-change: height;
  contain: layout style;
}

/* When in multiline mode, allow wrapping */
.input-section.multiline #text-input {
  white-space: pre-wrap;
  overflow-x: hidden;
}

/* ========== BUTTON CONTAINERS ========== */
.left-buttons { 
  display: flex; 
  gap: 4px; 
  align-items: center; 
  padding: 0 8px;
  /* Smooth transition for position changes */
  transition: padding 150ms ease;
}
.input-section.multiline .left-buttons { 
  grid-area: left; 
  align-self: end; 
  padding: 8px 12px;
}

.right-buttons { 
  display: flex; 
  gap: 4px; 
  align-items: center; 
  padding: 0 8px; 
  order: 2;
  transition: padding 150ms ease;
}
.input-section.multiline .right-buttons { 
  grid-area: right; 
  align-self: end; 
  padding: 8px 12px; 
  margin-left: 0;
}

/* ========== VISUAL FEEDBACK FOR TRANSITIONS ========== */
.input-section {
  /* Add a subtle scale effect during transition */
  transform-origin: bottom center;
}

.input-section.multiline {
  /* Slightly different background to indicate mode change */
  background: rgba(255,255,255,0.1);
}