:root {
    --bg: #0a0a0f;
    --surface: #12121a;
    --card: #1a1a28;
    --accent1: #7c6aff;
    --accent2: #ff6ab0;
    --accent3: #6affda;
    --text: #e8e8f0;
    --sub: #7a7a9a;
    --glow1: rgba(124,106,255,0.4);
    --glow2: rgba(255,106,176,0.4);
    --glow3: rgba(106,255,218,0.3);
  }

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

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Noto Sans KR', sans-serif;
    min-height: 100vh;
  }

  /* 배경 파티클 */
  .bg-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
  }

  .select-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: 0.15em;
    background: linear-gradient(135deg, var(--accent1), var(--accent2), var(--accent3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.3em;
  }

  .select-sub {
    color: var(--sub);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    margin-bottom: 3rem;
  }

  .characters-grid {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
    justify-content: center;
    padding: 0 1rem;
  }

  .char-card {
    width: 150px;
    cursor: pointer;
    position: relative;
    transition: transform 0.3s ease;
  }

  .char-card:hover { transform: translateY(-8px); }
  .char-card:hover .char-glow { opacity: 1; }
  .char-card:hover .char-frame { border-color: var(--card-accent); }

  .char-glow {
    position: absolute;
    inset: -2px;
    border-radius: 20px;
    opacity: 0;
    transition: opacity 0.3s;
    filter: blur(12px);
    z-index: -1;
  }

  .char-frame {
    background: var(--card);
    border-radius: 18px;
    border: 1.5px solid #2a2a3e;
    overflow: hidden;
    transition: border-color 0.3s;
    position: relative;
  }

  .char-avatar {
    width: 100%;
    height: 180px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    font-size: 5rem;
    position: relative;
    overflow: hidden;
  }

  .char-avatar img {
    height: 100%;
    width: auto;
    object-fit: contain;
    object-position: bottom center;
  }

  /* 캐릭터별 배경 */
  .char-avatar::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.15;
  }

  .char-info {
    padding: 0.8rem;
    text-align: center;
    border-top: 1px solid #2a2a3e;
  }

  .char-name {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
  }

  .char-type {
    font-size: 0.72rem;
    color: var(--sub);
  }

  /* 카드별 색상 */
  .card-0 { --card-accent: var(--accent1); }
  .card-0 .char-glow { background: var(--glow1); }
  .card-0 .char-avatar::before { background: var(--accent1); }
  .card-0 .char-name { color: #a89fff; }

  .card-1 { --card-accent: #ff8c42; }
  .card-1 .char-glow { background: rgba(255,140,66,0.4); }
  .card-1 .char-avatar::before { background: #ff8c42; }
  .card-1 .char-name { color: #ffb480; }

  .card-2 { --card-accent: var(--accent2); }
  .card-2 .char-glow { background: var(--glow2); }
  .card-2 .char-avatar::before { background: var(--accent2); }
  .card-2 .char-name { color: #ff9fd0; }

  .card-3 { --card-accent: var(--accent3); }
  .card-3 .char-glow { background: var(--glow3); }
  .card-3 .char-avatar::before { background: var(--accent3); }
  .card-3 .char-name { color: #9fffe8; }

  .card-4 { --card-accent: #ffd700; }
  .card-4 .char-glow { background: rgba(255,215,0,0.35); }
  .card-4 .char-avatar::before { background: #ffd700; }
  .card-4 .char-name { color: #ffe566; }

  .card-5 { --card-accent: #cc44ff; }
  .card-5 .char-glow { background: rgba(204,68,255,0.4); }
  .card-5 .char-avatar::before { background: #cc44ff; }
  .card-5 .char-name { color: #e499ff; }

  /* ===== 캐릭터 등장 오버레이 ===== */
  #char-intro {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0);
    pointer-events: none;
    transition: background 0.4s;
  }

  #char-intro.active {
    display: flex;
    pointer-events: all;
    background: rgba(0,0,0,0.85);
  }

  .intro-char {
    font-size: 10rem;
    opacity: 0;
    transform: scale(0.3) translateY(100px);
    transition: all 0.6s cubic-bezier(0.34,1.56,0.64,1);
    filter: drop-shadow(0 0 40px var(--intro-color));
    position: relative;
  }

  .intro-char.show {
    opacity: 1;
    transform: scale(1) translateY(0);
  }

  .intro-char.suck {
    transition: all 0.7s cubic-bezier(0.55,0,1,0.45);
    opacity: 0;
    transform: scale(0.05) translate(calc(var(--tx) * 1px), calc(var(--ty) * 1px));
    filter: blur(8px);
  }

  .intro-speech {
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    color: #111;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.4s 0.5s;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  }

  .intro-speech::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: white;
    border-bottom: none;
  }

  .intro-char.show .intro-speech { opacity: 1; }
  .intro-char.suck .intro-speech { opacity: 0; transition-delay: 0s; }

  /* ===== 챗봇 UI ===== */

  /* 배경 흐린 효과 */
  .chat-bg {
    position: absolute;
    inset: 0;
    background: 
      radial-gradient(ellipse at 20% 50%, rgba(124,106,255,0.06) 0%, transparent 60%),
      radial-gradient(ellipse at 80% 30%, rgba(255,106,176,0.05) 0%, transparent 60%);
  }

  /* 상단 헤더 */
  .chat-header {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 64px;
    background: rgba(18,18,26,0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid #2a2a3e;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    gap: 1rem;
    z-index: 5;
  }

  .header-logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.4rem;
    letter-spacing: 0.1em;
    background: linear-gradient(135deg, var(--accent1), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .header-sep { flex: 1; }

  .change-char-btn {
    background: none;
    border: 1px solid #3a3a55;
    color: var(--sub);
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 0.78rem;
    cursor: pointer;
    font-family: 'Noto Sans KR', sans-serif;
    transition: all 0.2s;
  }

  .change-char-btn:hover {
    border-color: var(--accent1);
    color: var(--accent1);
  }

  /* 챗봇 위젯 */
  #chat-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 360px;
    height: 520px;
    z-index: 30;
    display: none;
    flex-direction: column;
    border-radius: 24px;
    overflow: visible;
    background: transparent;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.34,1.56,0.64,1);
  }

  /* 실제 위젯 내용 클리핑용 내부 래퍼 */
  .widget-inner {
    display: flex;
    flex-direction: column;
    flex: 1;
    border-radius: 24px;
    overflow: hidden;
    background: var(--surface);
    border: 1px solid #2a2a3e;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.03);
  }

  #chat-widget.appear {
    transform: translateY(0);
    opacity: 1;
  }

  .widget-header {
    background: var(--card);
    border-bottom: 1px solid #2a2a3e;
    display: grid;
    grid-template-columns: 140px 1fr;
    height: 110px;
    position: relative;
    overflow: visible;
  }

  /* 좌측: 캐릭터 영역 */
  .header-char-col {
    position: relative;
    overflow: visible;
  }

  /* 우측: 텍스트 영역 */
  .header-info-col {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 1rem 0 2.5rem;
    gap: 0.25rem;
  }

  .widget-char-popup {
    position: absolute;
    left: 8px;
    bottom: 410px;
    top: auto;
    width: 140px;
    height: 320px;
    z-index: 40;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    pointer-events: none;
  }

  .widget-char-popup img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: bottom center;
    filter: drop-shadow(0 8px 24px var(--char-shadow));
    animation: charBob 3s ease-in-out infinite;
    background: transparent;
    mix-blend-mode: screen;
  }

  .widget-char-popup img.white-bg {
    border-radius: 12px;
    background: rgba(255,255,255,0.08);
    mix-blend-mode: normal;
  }

  .widget-char-popup .char-emoji-fallback {
    font-size: 4.5rem;
    animation: charBob 3s ease-in-out infinite;
    filter: drop-shadow(0 4px 16px var(--char-shadow));
    line-height: 1;
    align-self: flex-end;
  }

  @keyframes charBob {
    0%,100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
  }

  .widget-name { font-weight: 700; font-size: 0.95rem; }
  .widget-status {
    font-size: 0.72rem;
    color: var(--sub);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    margin-top: 0.1rem;
  }

  .status-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #4eff91;
    box-shadow: 0 0 6px #4eff91;
    animation: pulse 2s infinite;
  }

  @keyframes pulse {
    0%,100% { opacity: 1; }
    50% { opacity: 0.4; }
  }

  .chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 0.8rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    scrollbar-width: thin;
    scrollbar-color: #2a2a3e transparent;
  }

  .msg {
    max-width: 85%;
    padding: 0.65rem 0.9rem;
    border-radius: 16px;
    font-size: 0.85rem;
    line-height: 1.5;
    animation: msgIn 0.3s ease;
  }

  @keyframes msgIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .msg.bot {
    background: var(--card);
    border-bottom-left-radius: 4px;
    align-self: flex-start;
  }

  .msg.user {
    background: var(--accent1);
    border-bottom-right-radius: 4px;
    align-self: flex-end;
    color: white;
  }

  .msg-time {
    font-size: 0.65rem;
    color: var(--sub);
    margin-top: 0.2rem;
    text-align: right;
  }

  .typing-indicator {
    display: flex;
    gap: 4px;
    padding: 0.7rem 1rem;
    background: var(--card);
    border-radius: 16px;
    border-bottom-left-radius: 4px;
    align-self: flex-start;
    width: fit-content;
  }

  .typing-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--sub);
    animation: typing 1.2s infinite;
  }

  .typing-dot:nth-child(2) { animation-delay: 0.2s; }
  .typing-dot:nth-child(3) { animation-delay: 0.4s; }

  @keyframes typing {
    0%,100% { transform: translateY(0); opacity: 0.4; }
    50% { transform: translateY(-5px); opacity: 1; }
  }

  .chat-input-area {
    padding: 0.8rem;
    background: var(--card);
    border-top: 1px solid #2a2a3e;
    display: flex;
    gap: 0.6rem;
    align-items: flex-end;
  }

  .chat-input {
    flex: 1;
    background: var(--surface);
    border: 1px solid #2a2a3e;
    border-radius: 14px;
    padding: 0.6rem 0.9rem;
    color: var(--text);
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 0.85rem;
    resize: none;
    outline: none;
    max-height: 80px;
    transition: border-color 0.2s;
  }

  .chat-input:focus { border-color: var(--accent1); }
  .chat-input::placeholder { color: var(--sub); }

  .send-btn {
    width: 38px; height: 38px;
    border-radius: 12px;
    border: none;
    background: var(--accent1);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s;
    font-size: 1rem;
  }

  .send-btn:hover { background: #6a58ee; transform: scale(1.05); }
  .send-btn:active { transform: scale(0.95); }

  /* 좌측 캐릭터 디스플레이 */
  #char-display {
    position: fixed;
    left: 3rem;
    bottom: 0;
    width: 280px;
    height: 380px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease 0.3s;
    pointer-events: none;
  }

  #char-display.show {
    opacity: 1;
    transform: translateY(0);
  }

  .display-emoji {
    font-size: 9rem;
    animation: float 3s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px var(--char-color));
  }

  @keyframes float {
    0%,100% { transform: translateY(0) rotate(-2deg); }
    50% { transform: translateY(-12px) rotate(2deg); }
  }

  .display-name {
    font-weight: 900;
    font-size: 1.1rem;
    color: var(--char-color);
    margin-top: 0.5rem;
    letter-spacing: 0.05em;
  }

  .display-bar {
    width: 60px;
    height: 3px;
    background: var(--char-color);
    border-radius: 2px;
    margin-top: 0.4rem;
    opacity: 0.5;
  }

  /* 파티클 캔버스 */
  canvas { display: block; }