/* prevent horizontal layout shift due to scrollbar */
html, body { overflow-y: scroll; }

:root{
  --bg: #fbfbfd;
  --surface: #ffffff;
  --surface-2: #f6f7fb;
  --text: #14151a;
  --muted: #5a5f6a;
  --border: rgba(20, 21, 26, 0.10);
  --shadow: 0 10px 30px rgba(20, 21, 26, 0.10);

  --primary: #ff6b4a;
  --primary-2: #ff9800;
  --primary-soft: rgba(255, 107, 74, 0.12);

  --app-sidebar-w: 240px;
  --file-sidebar-w: 260px;
  --file-sidebar-half: 130px;

  --radius: 16px;
}

*{ box-sizing: border-box; }

body{
  margin: 0;
  padding: 0;
  font-family: 'Noto Sans KR', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background:
    radial-gradient(1200px 600px at 15% 5%, rgba(255,152,0,.18), transparent 60%),
    radial-gradient(900px 500px at 85% 15%, rgba(255,107,74,.16), transparent 55%),
    var(--bg);
  color: var(--text);
}
.container {
    display: flex;
    height: 100dvh;
}
.sidebar {
    width: var(--app-sidebar-w);
    background:
      radial-gradient(600px 260px at 30% 0%, rgba(255,152,0,.22), transparent 60%),
      radial-gradient(600px 260px at 70% 0%, rgba(255,107,74,.18), transparent 60%),
      linear-gradient(180deg, rgba(255,255,255,.95) 0%, rgba(255,255,255,.82) 100%);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 20px 14px;
    backdrop-filter: blur(10px);
}
.logo {
    padding: 10px 12px 14px 12px;
    border-radius: calc(var(--radius) + 4px);
    border: 1px solid rgba(255, 152, 0, 0.18);
    background: rgba(255, 255, 255, 0.72);
    box-shadow: 0 10px 20px rgba(20, 21, 26, 0.06);
    margin-bottom: 16px;
}
.logo-mark{
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: .3px;
    color: var(--text);
    line-height: 1.1;
}
.logo-sub{
    margin-top: 4px;
    font-size: .9rem;
    color: var(--muted);
    letter-spacing: .2px;
}
.menu {
    width: 100%;
}
.menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.menu-item {
    padding: 12px 12px;
    text-align: left;
    cursor: pointer;
    color: var(--text);
    border-radius: 14px;
    transition: background 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
    border: 1px solid transparent;
}
.menu-item.active, .menu-item:hover {
    background: rgba(255, 255, 255, 0.65);
    border-color: rgba(255, 107, 74, 0.22);
    transform: translateY(-1px);
}
.menu-item-label{
    font-size: 1.02rem;
    font-weight: 800;
    letter-spacing: .2px;
}
.menu-item-sub{
    margin-top: 2px;
    font-size: .86rem;
    color: var(--muted);
}
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: transparent;
    min-width: 0;
}
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px 12px 24px;
    background: linear-gradient(180deg, rgba(251,251,253,.74) 0%, rgba(251,251,253,0) 100%);
    backdrop-filter: blur(8px);
}
.page-title {
    font-size: 1.3rem;
    font-weight: 900;
    letter-spacing: -.2px;
}
.login-btn {
    background: rgba(255,255,255,.72);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 8px 14px;
    color: var(--text);
    font-size: .95rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(20,21,26,.10);
    border-color: rgba(255, 107, 74, 0.24);
}
.page {
    flex: 1;
    min-height: 0;
}

/* ---------- shared UI primitives ---------- */
.btn{
  appearance: none;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.82);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 800;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
}
.btn:hover{ transform: translateY(-1px); box-shadow: 0 12px 24px rgba(20,21,26,.10); border-color: rgba(255,107,74,.24); }
.btn:active{ transform: translateY(0); box-shadow: none; }
.btn-primary{
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
  border-color: rgba(255,255,255,.0);
}
.btn-ghost{
  background: rgba(255,255,255,.72);
}
.btn-small{
  padding: 8px 12px;
  font-size: .92rem;
}

.pill-row{ display:flex; gap:10px; flex-wrap:wrap; }
.pill{
  font-size: .86rem;
  font-weight: 800;
  color: rgba(20,21,26,.78);
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(255,107,74,.18);
  padding: 7px 10px;
  border-radius: 999px;
}
.tag-row{ display:flex; gap:8px; flex-wrap:wrap; margin-top: 10px; }
.tag{
  font-size: .84rem;
  font-weight: 800;
  color: rgba(20,21,26,.76);
  background: rgba(255,255,255,.70);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 999px;
}
.link{ color: #1976d2; text-decoration: none; font-weight: 800; }
.link:hover{ text-decoration: underline; }

/* ---------- Home (marketing) ---------- */
.home-hero{
  padding: 30px 24px 10px 24px;
}
.home-hero-inner{
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 26px;
  border-radius: 24px;
  border: 1px solid rgba(255,107,74,.16);
  background:
    radial-gradient(900px 380px at 20% 0%, rgba(255,152,0,.20), transparent 60%),
    radial-gradient(900px 380px at 80% 0%, rgba(255,107,74,.18), transparent 60%),
    rgba(255,255,255,.78);
  box-shadow: var(--shadow);
}
.hero-title{
  margin: 14px 0 10px 0;
  font-size: clamp(2rem, 3.4vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.8px;
}
.hero-subtitle{
  margin: 0;
  max-width: 860px;
  color: rgba(20,21,26,.74);
  line-height: 1.6;
  font-size: 1.02rem;
}
.hero-cta{ margin-top: 16px; display:flex; gap: 10px; flex-wrap: wrap; }

.section{
  padding: 26px 24px;
}
.section-alt{
  background: rgba(255,255,255,.55);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head{
  max-width: 1100px;
  margin: 0 auto 14px auto;
}
.section-title{
  margin: 0;
  font-size: 1.55rem;
  font-weight: 950;
  letter-spacing: -.4px;
}
.section-desc{
  margin: 8px 0 0 0;
  color: rgba(20,21,26,.70);
  line-height: 1.6;
}
.section-desc-note{ color: rgba(90,95,106,.9); }

.cards{
  max-width: 1100px;
  margin: 14px auto 0 auto;
  display: grid;
  gap: 14px;
}
.grid-3{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card{
  background: rgba(255,255,255,.86);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px 16px 14px 16px;
  box-shadow: 0 10px 24px rgba(20,21,26,.06);
}
.card-kicker{
  font-size: .84rem;
  font-weight: 900;
  letter-spacing: .5px;
  color: rgba(20,21,26,.62);
  text-transform: uppercase;
}
.card-title{
  margin-top: 6px;
  font-weight: 950;
  font-size: 1.12rem;
  letter-spacing: -.2px;
}
.card-body{ margin-top: 10px; color: rgba(20,21,26,.74); line-height: 1.55; }
.list{ margin: 0; padding-left: 18px; }
.list li{ margin: 6px 0; }
.price-row{ margin-top: 10px; display:flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.price{ font-weight: 950; color: var(--text); }
.price-sub{ color: rgba(90,95,106,.9); font-weight: 800; }
.callout{
  margin-top: 10px;
  padding: 10px 12px;
  background: var(--primary-soft);
  border: 1px solid rgba(255,107,74,.20);
  border-radius: 14px;
  color: rgba(20,21,26,.78);
}
.mini-code{
  margin: 10px 0 0 0;
  padding: 12px 12px;
  border-radius: 14px;
  background: rgba(20,21,26,.92);
  color: #e9ecf4;
  overflow: auto;
  font-size: .88rem;
  line-height: 1.5;
}
.timeline{
  max-width: 1100px;
  margin: 14px auto 0 auto;
  display: grid;
  gap: 12px;
}
.timeline-item{
  background: rgba(255,255,255,.86);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 14px 16px;
}
.timeline-title{ font-weight: 950; }
.timeline-body{ margin-top: 6px; color: rgba(20,21,26,.72); }
.footer-note{
  max-width: 1100px;
  margin: 18px auto 0 auto;
  padding-bottom: 22px;
  color: rgba(90,95,106,.85);
  font-weight: 700;
}
.form-row{ display:flex; gap: 10px; }
.input, .textarea{
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 12px;
  background: rgba(255,255,255,.86);
  font-size: 1rem;
  outline: none;
}
.input:focus, .textarea:focus{ border-color: rgba(255,107,74,.35); box-shadow: 0 0 0 4px rgba(255,107,74,.10); }
.textarea{ margin-top: 10px; resize: vertical; }
.form-actions{ margin-top: 10px; display:flex; gap: 10px; flex-wrap: wrap; }
.info-row{ display:flex; gap: 12px; padding: 8px 0; border-bottom: 1px dashed rgba(20,21,26,.12); }
.info-row:last-child{ border-bottom: none; }
.info-k{ width: 80px; font-weight: 900; color: rgba(20,21,26,.70); }
.info-v{ flex: 1; color: rgba(20,21,26,.78); font-weight: 700; }
/* 채팅 화면 */
.page-chat {
    justify-content: center;
    align-items: center;
    position: relative;
}
.chat-center {
    position: absolute;
    top: 35%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-y: auto;
    max-height: calc(100vh - 200px);
    padding: 20px;
    width: 100%;
    max-width: 800px;
}
.chat-logo-wrapper {
    position: relative;
    width: 100px;
    height: 100px;
    margin-bottom: 10px;
}
.chat-logo {
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, #FF9800 70%, #FFE0B2 100%);
    border-radius: 50%;
    box-shadow: 0 0 16px #FFD180;
    position: relative;
    z-index: 1;
}
.chat-title {
    font-size: 2rem;
    font-weight: 700;
    color: #222;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    margin: 0;
    z-index: 2;
    pointer-events: none;
    writing-mode: initial;
    text-align: center;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.chat-subtitle {
    font-size: 0.9rem;
    color: #888;
    text-align: center;
    margin-top: 8px;
}
.chat-input-wrapper {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}
.chat-input-area {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,.90);
    border-radius: 24px;
    box-shadow: 0 10px 22px rgba(20,21,26,.08);
    padding: 8px 16px;
    width: 100%;
    max-width: 100%;
    border: 1px solid rgba(20,21,26,.10);
}
.chat-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1rem;
    padding: 8px 10px;
    background: #fff;
    color: #222;
    resize: none;
    min-height: 32px;
    max-height: 240px; /* 최대 약 10줄 */
    line-height: 1.5;
    box-sizing: border-box;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}
.chat-input:empty:before {
    content: attr(data-placeholder);
    color: #bbb;
    pointer-events: none;
}
.chat-plus, .chat-hash, .chat-send {
    background: none;
    border: none;
    font-size: 1.2rem;
    margin-left: 8px;
    cursor: pointer;
    color: var(--primary);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    transition: background 0.2s;
}
.chat-send:disabled {
    color: #FF9800;
    cursor: not-allowed;
}
.footer {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 18px;
    font-size: 0.95rem;
    color: #b2b2b2;
}
/* 도구 화면 */
.page-tools {
    padding: 24px 32px 0 32px;
    flex-direction: column;
    align-items: flex-start;
}
.tools-header {
    display: flex;
    align-items: center;
    width: 100%;
    margin-bottom: 18px;
}
.tools-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-right: 24px;
}
.tools-filters {
    display: flex;
    gap: 10px;
}
.filter-btn {
    background: rgba(255,255,255,.82);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 6px 16px;
    color: rgba(20,21,26,.78);
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}
.filter-btn.active, .filter-btn:hover {
    background: var(--primary-soft);
    color: var(--text);
    font-weight: bold;
    border-color: rgba(255,107,74,.22);
}
.tools-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 18px;
    width: 100%;
}
.tool-card {
    position: relative;
    background: rgba(255,255,255,.86);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: 0 10px 24px rgba(20,21,26,.06);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid var(--border);
}
.tool-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(20,21,26,.10);
    border-color: rgba(255,107,74,.22);
}
.tool-card.selected {
    border-color: rgba(255,107,74,.55);
    background: linear-gradient(135deg, rgba(255,107,74,.08) 0%, rgba(255,255,255,.88) 100%);
    box-shadow: 0 18px 44px rgba(255, 107, 74, 0.16);
}
.tool-card:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px #ffe0d3;
}
.tool-title {
    font-size: 1.1rem;
    font-weight: bold;
    color: #222;
}
.tool-desc {
    font-size: 0.98rem;
    color: #666;
}
.tool-fav {
    position: absolute;
    top: 14px;
    right: 14px;
    font-size: 1.2rem;
    color: #FFD6C2;
    cursor: pointer;
    transition: color 0.2s;
}
.tool-fav.active {
    color: var(--primary);
}
@media (max-width: 900px) {
    :root{ --app-sidebar-w: 96px; }
    .sidebar{ padding: 16px 10px; }
    .logo{ padding: 10px 10px 12px 10px; }
    .logo-sub{ display:none; }
    .menu-item{ text-align:center; padding: 12px 8px; }
    .menu-item-sub{ display:none; }
    .tools-list {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
    .grid-3{ grid-template-columns: 1fr; }
    .grid-2{ grid-template-columns: 1fr; }
    .home-hero{ padding: 18px 14px 6px 14px; }
    .home-hero-inner{ padding: 22px 16px; }
    .section{ padding: 18px 14px; }
    .chat-input-wrapper { width: calc(95vw - 0px); max-width: calc(95vw - 0px); }
    .chat-input-area {
        width: 100%;
        min-width: 0;
    }
    .image-preview-area {
        width: 100%;
        min-width: 0;
    }
}
/* 채팅 메시지 스타일 */
.chat-message {
    margin: 10px 0;
    padding: 10px 15px;
    border-radius: 15px;
    max-width: 80%;
    word-wrap: break-word;
    position: relative;
}

.user-message {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
    color: #fff;
    margin-left: auto;
    border-bottom-right-radius: 5px;
}

.bot-message {
    background-color: rgba(255,255,255,.88);
    color: rgba(20,21,26,.92);
    margin-right: auto;
    border-bottom-left-radius: 5px;
    border: 1px solid rgba(20,21,26,.10);
}
.bot-message img { display:block; max-width:100%; border-radius:12px; }

.message-content {
    margin-bottom: 5px;
    line-height: 1.4;
    white-space: pre-wrap; /* 입력 줄바꿈 그대로 표시 */
    word-break: break-word;
}

.message-time {
    font-size: 0.75rem;
    opacity: 0.7;
    text-align: right;
}

.user-message .message-time {
    text-align: left;
}

/* 로딩 애니메이션 */
@keyframes typing {
    0%, 20% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}

.bot-message.loading .message-content::after {
    content: '...';
    animation: typing 1.5s infinite;
}

/* 이미지 미리보기 영역 */
.image-preview-area {
    margin-bottom: 8px;
    width: 100%;
    max-width: 100%;
}
.image-preview-box {
    display: flex;
    align-items: center;
    background: #f8f9fa;
    border: 1px solid #eee;
    border-radius: 12px;
    padding: 8px 12px;
    position: relative;
    min-width: 120px;
    max-width: 220px;
    box-shadow: 0 2px 8px #ffe0d3;
}
.image-preview-thumb {
    width: 36px;
    height: 36px;
    object-fit: cover;
    border-radius: 8px;
    margin-right: 10px;
    background: #fff;
    border: 1px solid #eee;
}
.image-preview-info {
    display: flex;
    flex-direction: column;
    font-size: 0.95rem;
    color: #444;
}
.image-preview-name {
    font-weight: 500;
    margin-bottom: 2px;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.image-preview-size {
    font-size: 0.85rem;
    color: #888;
}
.image-preview-remove {
    position: absolute;
    top: 6px;
    right: 6px;
    background: #fff0ee;
    border: none;
    color: #FF9800;
    font-size: 1.1rem;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}
.image-preview-remove:hover {
    background: #FF9800;
    color: #fff;
}
/* 도구 채팅 헤더 */
.tool-chat-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.78);
    border-radius: 16px;
    box-shadow: 0 10px 24px rgba(20,21,26,.06);
    border: 1px solid rgba(20,21,26,.10);
}
.tool-chat-title {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 8px;
}
.tool-chat-desc {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.4;
}
.progress-bar {
    width: 60px;
    height: 6px;
    background: #eee;
    border-radius: 3px;
    margin-top: 6px;
    overflow: hidden;
}
.progress-bar-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #FF9800 0%, #FFD6C2 100%);
    animation: progressBarAnim 1s linear infinite;
}
@keyframes progressBarAnim {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
} 
.model-toggle-group {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-right: 8px;
}
.model-toggle-btn {
    background: #FFE0D3;
    border: 1.5px solid #FFD6C2;
    color: #FF9800;
    font-weight: 500;
    border-radius: 16px;
    padding: 4px 16px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border 0.2s;
    outline: none;
}
.model-toggle-btn.active,
.model-toggle-btn:focus {
    background: #FF9800;
    color: #fff;
    border: 1.5px solid #FF9800;
}
.model-toggle-btn:hover:not(.active) {
    background: #FFD6C2;
    color: #FF9800;
} 
.external-iframe {
    width: 100%;
    height: 100%;
    border: none;
} 

/* iframe 모드 시 채팅 영역 전체 확장 */
.chat-center.iframe-mode {
    position: absolute;
    top: 0;
    left: 0;
    transform: none;
    width: 100%;
    max-width: none;
    height: 100%;
    padding: 0;
} 

/* 파일 사이드바 */
.file-sidebar {
    position: absolute;
    left: 0;
    top: 0;
    width: var(--file-sidebar-w);
    height: 100%;
    background: rgba(255,255,255,.82);
    border-right: 1px solid rgba(20,21,26,.10);
    overflow-y: auto;
    z-index: 3;
}
.file-sidebar-header {
    padding: 12px;
    font-weight: bold;
    border-bottom: 1px solid #ffd6c2;
}
.file-list {
    list-style: none;
    margin: 0;
    padding: 0;
}
.file-list li {
    padding: 8px 12px;
    cursor: pointer;
    border-bottom: 1px solid #ffe8d5;
    display:flex;
    justify-content: space-between;
    align-items:center;
}
.file-del-btn{
    background:none;
    border:none;
    color:#ff6b4a;
    cursor:pointer;
    font-size:1rem;
}

/* (추가) 긴 파일명도 버튼이 가려지지 않도록 처리 */
.file-list li span{
    flex:1 1 auto;          /* 남는 공간을 차지하면서 필요하면 축소 */
    min-width:0;            /* flex-shrink 가 동작하도록 최소폭 0 */
    overflow:hidden;        /* 넘치는 텍스트 숨김 */
    text-overflow:ellipsis; /* 말줄임표 표시 */
    white-space:nowrap;     /* 한 줄 유지 */
}
.file-list li:hover { background: #fff1e6; }

/* 파일 슬라이드 팝업 */
.file-slide {
    position: fixed;
    left: 220px; /* 옆 사이드바 너비 */
    bottom: -60%;
    width: calc(100% - 220px);
    height: 60%;
    background: #ffffff;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    overflow-y: auto;
    transition: bottom 0.3s ease;
    z-index: 4;
    padding: 16px;
}
.file-slide.show { bottom: 0; } 
.file-progress {
    padding:8px 12px;
    color:#aaa;
    font-style:italic;
}
@keyframes pulseProgress {
    0% { opacity: 0.3; }
    50% { opacity: 1; }
    100% { opacity: 0.3; }
}
.file-progress {
    animation: pulseProgress 1.5s infinite;
} 
.file-slide-close {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 6px; /* 팝업 내부 상단 */
    width: 32px;
    height: 32px;
    background: #fff;
    border: 2px solid #ff6b4a;
    border-radius: 50%;
    font-size: 1.3rem;
    line-height: 28px;
    text-align: center;
    cursor: pointer;
    color: #ff6b4a;
    font-weight: bold;
    z-index: 5;
}
.file-slide-close:hover { background:#ff6b4a; color:#fff; }
.file-slide-content {
    white-space: pre-wrap;
    font-family: "Noto Sans KR", sans-serif;
} 

/* PDF 로딩 오버레이 */
.file-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #ff6b4a;
    font-style: italic;
    z-index: 4; /* iframe 위에 표시 */
    animation: pulseProgress 1.5s infinite;
} 

/* --- Sidebar fixed width to prevent layout shift --- */
.file-sidebar {
  width: var(--file-sidebar-w);
  flex: 0 0 var(--file-sidebar-w);
}
.file-sidebar .file-list li {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
} 

/* --- Community page adjustments --- */
.page-community {
    overflow-y: visible; /* use outer body scrollbar only */
    overflow-x: hidden;
}
.page-community.active {
    display: block !important; /* show only when active; override .page.active flex */
}
#community-img { display:none; }

/* 커뮤니티 내부 레이아웃 */
.community-container { display:flex; height:100%; }
.community-sidebar { width:180px; background:#fff8ef; border-right:1px solid #ffd6c2; }
.community-sidebar ul{ list-style:none; margin:0; padding:0; }
.community-menu-item{ padding:12px 18px; cursor:pointer; color:#333; font-size:1rem; }
.community-menu-item.active,.community-menu-item:hover{ background:#fff1e6; color:#ff9800; font-weight:bold; }
.community-content{ flex:1; overflow-y:auto; } 
.newsletter-list{ list-style:none; margin:0; padding:0 0 0 20px; }
.newsletter-list li{ padding:6px 0; }
.newsletter-list a{ color:#007acc; text-decoration:none; font-size:1rem; }
.newsletter-list a:hover{ text-decoration:underline; }
.newsletter-title{ margin:16px 0 8px 20px; font-size:1.4rem; }
.newsletter-content-area{ height: calc(100% - 56px); /* adapt below title */ }
.newsletter-pdf-wrapper{ position:relative; height:100%; }
.newsletter-iframe{ width:100%; height:100%; border:none; }
.newsletter-close{ position:absolute; top:-16px; left:50%; transform:translateX(-50%); width:32px; height:32px; background:#fff; border:2px solid #ff6b4a; border-radius:50%; font-size:1.3rem; line-height:26px; text-align:center; color:#ff6b4a; cursor:pointer; z-index:5; }
.newsletter-close:hover{ background:#ff6b4a; color:#fff; } 

/* Lecture styles */
.lecture-title{ margin:16px 0 8px 20px; font-size:1.4rem; }
.lecture-topic{ margin:8px 0 12px 20px; font-size:1.2rem; color:#555; }
.lecture-video-list{ display:flex; flex-wrap:wrap; gap:12px; padding:0 0 0 20px; }
.lecture-video{ width:140px; display:block; }
.lecture-video img{ width:100%; border-radius:8px; box-shadow:0 2px 6px rgba(0,0,0,0.1); }
.lecture-video:hover img{ transform:scale(1.03); transition:transform .2s; } 

/* QnA board */
.qna-title-head{ margin:16px 0 8px 20px; font-size:1.4rem; }
.qna-table{ width:calc(100% - 40px); margin:0 20px; border-collapse:collapse; }
.qna-table th,.qna-table td{ border-bottom:1px solid #eee; padding:10px; text-align:left; }
.qna-table th{ background:#fff8ef; font-weight:600; color:#333; }
.qna-table tr:hover td{ background:#fff1e6; }
.qna-title{ color:#007acc; cursor:pointer; }
.qna-title:hover{ text-decoration:underline; } 
 
/* Document Translation styles */
.download-original-link,
.download-result-link {
    color: #007acc;
    text-decoration: none;
    font-weight: bold;
    margin-right: 6px;
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid #007acc;
    font-size: 0.8rem;
    display: inline-block;
}
.download-original-link:hover,
.download-result-link:hover {
    background: #007acc;
    color: #fff;
    text-decoration: none;
}
.download-original-link {
    background-color: #f8f9fa;
    border-color: #6c757d;
    color: #6c757d;
}
.download-original-link:hover {
    background-color: #6c757d;
    color: #fff;
}
.translating {
    color: #ff6b4a;
    font-weight: bold;
    margin-right: 8px;
    font-size: 0.8rem;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.file-list li.translation-result-item {
    display: block !important;
    align-items: initial !important;
    justify-content: initial !important;
}
.file-item-content { width: 100%; }
.original-file {
    font-weight: bold;
    color: #333;
    margin-bottom: 2px;
    font-size: 0.9rem;
}
.result-file {
    color: #666;
    font-size: 0.85rem;
    margin-bottom: 4px;
    font-style: italic;
}

/* ------- Loading Overlay for AI뉴스 ------- */
.loading-overlay {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid #ffd6c2;
  border-radius: 16px;
  padding: 14px 18px;
  z-index: 2000;
  box-shadow: 0 8px 22px rgba(0,0,0,.12);
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}
.loading-text {
  color: #ff6b4a;
  font-weight: 700;
  letter-spacing: .4px;
  animation: textPulse 1.2s ease-in-out infinite;
}
.loading-dots {
  display: inline-flex;
  gap: 6px;
}
.loading-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ff6b4a;
  animation: loadingBlink 1s infinite ease-in-out;
}
.loading-dot:nth-child(2) { animation-delay: .2s; }
.loading-dot:nth-child(3) { animation-delay: .4s; }

@keyframes loadingBlink {
  0%, 80%, 100% { opacity: .25; transform: scale(.85); }
  40% { opacity: 1; transform: scale(1); }
}
@keyframes textPulse {
  0%, 100% { opacity: .7; }
  50% { opacity: 1; }
}

/* When file sidebar is visible, shift chat area and input to the right */
.page-chat.has-file-sidebar .chat-center {
    left: calc(50% + var(--file-sidebar-half));
    max-width: calc(100% - var(--file-sidebar-w) - 40px);
    transform: translate(-50%, -50%);
}

.page-chat.has-file-sidebar .chat-input-wrapper {
    left: calc(50% + var(--file-sidebar-half));
    max-width: calc(100% - var(--file-sidebar-w) - 40px);
    width: calc(100% - var(--file-sidebar-w));
    transform: translateX(-50%);
}

/* --- Chat History Panel & Toggle --- */
.chat-history-toggle {
  position: absolute;
  top: 18px;
  left: 18px;
  width: 32px;
  height: 32px;
  padding: 6px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 6;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.chat-history-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}
.chat-history-panel {
  position: absolute;
  top: 78px;
  left: 0;
  width: 360px;
  /* 상단 헤더(top)과 하단 입력 영역(bottom) 사이에 꽉 채움 */
  bottom: 0px; /* chat-input-wrapper 의 bottom 값과 동일 */
  background: #ffffff;
  border-right: 1px solid #ffd6c2;
  box-shadow: 2px 0 12px rgba(0,0,0,0.05);
  z-index: 5;
  overflow-y: auto;
  display: none;             /* 기본 숨김 */
}
.chat-history-panel.show { display: block; }
.chat-history-list { list-style: none; margin: 0; padding: 0; }
.history-item { padding: 10px 14px; border-bottom: 1px solid #ffe8d5; }
.history-content { font-size: 0.95rem; color: #333; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.history-time { font-size: 0.8rem; color: #aaa; }

/* 파일 사이드바가 있는 경우 히스토리 패널 위치 보정 */
.page-chat.has-file-sidebar .chat-history-panel { left: 260px; }
.page-chat.has-file-sidebar .chat-history-toggle { left: 278px; }