/* =====================================================================
   AI 튜터 플로팅 챗봇 스타일
   ===================================================================== */

:root {
	--tvf-blue: #1f75bb;
	--tvf-blue-dark: #1560a0;
	--tvf-blue-light: #52aaec;
	--tvf-blue-bg: #eff6ff;
	--tvf-border: #e8ecf5;
	--tvf-bg: #f5f7fb;
	--tvf-text: #0f172a;
	--tvf-text-muted: #64748b;
	--tvf-text-faint: #94a3b8;
	--tvf-white: #ffffff;
}

/* ── 플로팅 버튼 ─────────────────────────────────────────────────────── */
#aitutor-float-btn {
	position: fixed;
	bottom: 25px;
	right: 25px;
	width: 80px;
	border: none;
	background: transparent;
	padding: 0;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 9999;
	transition: transform 0.2s;
}
#aitutor-float-btn img {
	width: 100%;
	display: block;
}
#aitutor-float-btn:hover {
	transform: scale(1.08);
}

/* ── 팝업 컨테이너 ───────────────────────────────────────────────────── */
#aitutor-float-popup {
	position: fixed;
	bottom: 140px;
	right: 25px;
	width: 420px;
	height: 620px;
	border-radius: 20px;
	overflow: hidden;
	box-shadow: 0 8px 40px rgba(0,0,0,0.18);
	z-index: 9998;
	display: none;
	border: 1px solid var(--tvf-border);
	flex-direction: column;
	background: var(--tvf-bg);
	font-family: inherit;
	transition: width 0.25s ease, height 0.25s ease, bottom 0.25s ease;
}
#aitutor-float-popup.open {
	display: flex;
}
#aitutor-float-popup.maximized {
	width: 100vw;
	height: 100vh;
	bottom: 0;
	right: 0;
	border-radius: 0;
}

/* ── 최대화 랜딩 뷰 ──────────────────────────────────────────────────── */
#aitutor-f-landing {
	display: none;
}
#aitutor-float-popup.maximized:not(.has-messages) #aitutor-f-inputbar {
	display: none;
}
#aitutor-float-popup.maximized #aitutor-f-landing {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	flex: 1;
	padding: 24px;
	text-align: center;
	width: 100%;
	max-width: 860px;
	margin: 0 auto;
	box-sizing: border-box;
}
#aitutor-float-popup.maximized.has-messages #aitutor-f-landing {
	display: none;
}
.fl-sub {
	font-size: 14px;
	color: var(--tvf-text-muted);
	margin-bottom: 8px;
}
.fl-title {
	font-size: 28px;
	font-weight: 700;
	color: var(--tvf-text);
	letter-spacing: -0.5px;
	margin-bottom: 32px;
}
.fl-input-wrap {
	width: 100%;
	max-width: 620px;
	margin-bottom: 16px;
}
.fl-input-box {
	background: var(--tvf-white);
	border-radius: 16px;
	padding: 16px 20px;
	border: 1.5px solid var(--tvf-border);
	box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
#aitutor-f-landing-input {
	width: 100%;
	background: transparent;
	border: none;
	outline: none;
	resize: none;
	font-size: 15px;
	color: var(--tvf-text);
	font-family: inherit;
	line-height: 1.6;
	max-height: 128px;
	overflow-y: auto;
}
#aitutor-f-landing-input::placeholder { color: #b0bbc8; }
.fl-send-wrap {
	display: flex;
	justify-content: flex-end;
	margin-top: 8px;
}
.fl-send-btn {
	width: 36px; height: 36px;
	border-radius: 12px;
	border: none;
	background: #eef0f6;
	color: #c0c8d8;
	display: flex; align-items: center; justify-content: center;
	cursor: not-allowed;
	transition: all 0.15s;
}
.fl-send-btn.can-send {
	background: linear-gradient(135deg, var(--tvf-blue-light), var(--tvf-blue));
	box-shadow: 0 2px 8px rgba(31,117,187,0.3);
	cursor: pointer;
	color: white;
}
.fl-hint-row,
.f-hint-row {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-top: 8px;
}
.fl-hint {
	font-size: 11.5px;
	color: #b8c0d0;
}
.fl-hint-row .f-quota,
.f-hint-row .f-quota {
	margin-top: 0;
	text-align: right;
}
#aitutor-f-landing-chips {
	display: flex;
	gap: 8px;
	overflow-x: auto;
	padding-bottom: 4px;
	width: 100%;
	max-width: 620px;
	scrollbar-width: thin;
	scrollbar-color: #c8d4e8 transparent;
}
#aitutor-f-landing-chips::-webkit-scrollbar { height: 4px; }
#aitutor-f-landing-chips::-webkit-scrollbar-thumb { background: #c8d4e8; border-radius: 99px; }
#aitutor-f-landing-chips::-webkit-scrollbar-track { background: transparent; }
#aitutor-f-landing-chips .aitutor-f-chip {
	box-shadow: 0 1px 3px rgba(0,0,0,0.04);
	font-size: 13px;
	padding: 8px 16px;
}

/* ── 채팅 배경 ───────────────────────────────────────────────────────── */
#aitutor-f-scroll,
#aitutor-f-landing {
	background-color: #f7f9fc;
	background-image:
		linear-gradient(rgba(0,0,0,0.025) 1px, transparent 1px),
		linear-gradient(90deg, rgba(0,0,0,0.025) 1px, transparent 1px);
	background-size: 28px 28px;
}

/* ── 헤더 ────────────────────────────────────────────────────────────── */
#aitutor-f-header {
	flex-shrink: 0;
	display: flex;
	align-items: center;
	gap: 10px;
	padding: 0 16px;
	height: 52px;
	background: var(--tvf-white);
	border-bottom: 1px solid var(--tvf-border);
	box-shadow: 0 1px 8px rgba(0,0,0,0.05);
}
#aitutor-f-header .fh-icon {
	width: 30px;
	height: 30px;
	border-radius: 10px;
	background: linear-gradient(145deg, var(--tvf-blue-light), var(--tvf-blue));
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
}
#aitutor-f-header .fh-brand strong {
	display: block;
	font-size: 13px;
	font-weight: 600;
	color: var(--tvf-text);
	letter-spacing: -0.3px;
	line-height: 1;
}
#aitutor-f-header .fh-brand span {
	display: block;
	font-size: 11px;
	color: var(--tvf-text-faint);
	margin-top: 3px;
}
#aitutor-f-header .fh-divider {
	width: 1px;
	height: 18px;
	background: var(--tvf-border);
}
#aitutor-f-header .fh-badge {
	font-size: 11px;
	padding: 2px 9px;
	border-radius: 999px;
	font-weight: 500;
	background: var(--tvf-blue-bg);
	color: var(--tvf-blue);
	border: 1px solid #dbeafe;
}
#aitutor-f-header .fh-badge-beta {
	background: #fef3c7;
	color: #92400e;
	border-color: #fde68a;
}
#aitutor-f-sidebar-btn,
#aitutor-f-maximize-btn {
	width: 30px;
	height: 30px;
	border-radius: 8px;
	border: none;
	background: transparent;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--tvf-text-faint);
	transition: background 0.15s, color 0.15s;
	padding: 0;
}
#aitutor-f-sidebar-btn:hover,
#aitutor-f-maximize-btn:hover { background: var(--tvf-blue-bg); color: var(--tvf-blue); }
#aitutor-f-sidebar-btn.active,
#aitutor-f-maximize-btn.active { background: var(--tvf-blue-bg); color: var(--tvf-blue); }
#aitutor-f-maximize-btn { margin-left: auto; }
#aitutor-f-maximize-btn .icon-close { display: none; }
#aitutor-float-popup.maximized #aitutor-f-maximize-btn .icon-maximize { display: none; }
#aitutor-float-popup.maximized #aitutor-f-maximize-btn .icon-close { display: block; }
/* 모바일 전체화면(open + not mini-mode)에서도 닫기 아이콘 표시 */
@media (max-width: 768px) {
	#aitutor-float-popup.open:not(.mini-mode) #aitutor-f-maximize-btn .icon-maximize { display: none; }
	#aitutor-float-popup.open:not(.mini-mode) #aitutor-f-maximize-btn .icon-close { display: block; }
}

/* ── 바디 ────────────────────────────────────────────────────────────── */
#aitutor-f-body {
	flex: 1;
	display: flex;
	overflow: hidden;
	position: relative;
}

/* ── 사이드바 ────────────────────────────────────────────────────────── */
#aitutor-f-sidebar {
	position: absolute;
	top: 0; left: 0; right: 0; bottom: 0;
	z-index: 10;
	background: var(--tvf-white);
	border-right: 1px solid var(--tvf-border);
	display: flex;
	flex-direction: column;
	overflow: hidden;
}
#aitutor-f-sidebar.hidden { display: none; }

#aitutor-f-new-chat {
	margin: 12px;
	padding: 9px 16px;
	border-radius: 12px;
	border: none;
	background: linear-gradient(145deg, #2680c9, #1560a0);
	box-shadow: 0 2px 8px rgba(31,117,187,0.25);
	color: var(--tvf-white);
	font-size: 13px;
	font-weight: 500;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
}
#aitutor-f-conv-list {
	flex: 1;
	overflow-y: auto;
	padding: 0 8px 8px;
}
.f-conv-label {
	font-size: 10px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: #a0aabf;
	padding: 8px 8px 4px;
}
.f-conv-item {
	width: 100%;
	text-align: left;
	padding: 7px 12px;
	border-radius: 8px;
	border: none;
	background: transparent;
	font-size: 12.5px;
	color: #4b5563;
	cursor: pointer;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
	display: block;
	transition: background 0.1s;
}
.f-conv-item:hover { background: #f4f7fd; }
.f-conv-item.active { background: #e8f1fc; color: #1560a0; font-weight: 500; }

/* 이용안내 섹션 */
#aitutor-f-sidebar-tips {
	display: block;
	border-top: 1px solid #e4ecf6;
	padding: 12px 14px;
}
#aitutor-f-sidebar-tips .f-tips-label {
	font-size: 10px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: #a0aabf;
	margin-bottom: 6px;
}
#aitutor-f-sidebar-tips li {
	display: flex;
	align-items: flex-start;
	gap: 8px;
	font-size: 12px;
	color: #6b7280;
	line-height: 1.5;
	margin-bottom: 4px;
}
#aitutor-f-sidebar-tips li::before {
	content: '';
	display: inline-block;
	margin-top: 6px;
	width: 5px;
	height: 5px;
	border-radius: 50%;
	background: var(--tvf-blue);
	opacity: 0.5;
	flex-shrink: 0;
}

#aitutor-f-sidebar-copyright {
	display: block;
	text-align: center;
	font-size: 11px;
	color: #c0c8d8;
	padding-bottom: 12px;
}

/* ── 채팅 메인 ───────────────────────────────────────────────────────── */
#aitutor-f-main {
	flex: 1;
	display: flex;
	flex-direction: column;
	overflow: hidden;
}
#aitutor-f-scroll {
	flex: 1;
	overflow-y: auto;
	display: flex;
	flex-direction: column;
}

/* ── 웰컴 뷰 ─────────────────────────────────────────────────────────── */
#aitutor-f-welcome {
	padding: 24px 16px 0;
}
#aitutor-f-welcome-msg {
	display: flex;
	align-items: flex-start;
	gap: 10px;
}
#aitutor-f-welcome-msg .bot-icon {
	flex-shrink: 0;
	width: 30px;
	height: 30px;
	border-radius: 10px;
	background: linear-gradient(145deg, var(--tvf-blue-light), var(--tvf-blue));
	display: flex;
	align-items: center;
	justify-content: center;
}
#aitutor-f-welcome-msg .bubble {
	max-width: 78%;
	padding: 10px 14px;
	border-radius: 4px 14px 14px 14px;
	background: var(--tvf-white);
	word-break: keep-all;
	border: 1px solid var(--tvf-border);
	box-shadow: 0 1px 4px rgba(0,0,0,0.06);
	font-size: 14px;
	line-height: 1.6;
	color: var(--tvf-text);
}
#aitutor-f-chips {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin-top: 10px;
	margin-left: 40px;
}
.aitutor-f-chip {
	flex-shrink: 0;
	padding: 6px 12px;
	border-radius: 999px;
	background: var(--tvf-white);
	border: 1px solid var(--tvf-border);
	font-size: 12px;
	color: #374151;
	cursor: pointer;
	transition: all 0.15s;
	white-space: nowrap;
}
.aitutor-f-chip:hover {
	background: #f0f5ff;
	border-color: var(--tvf-blue-light);
	color: var(--tvf-blue);
}
.aitutor-f-chip:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── 메시지 영역 ─────────────────────────────────────────────────────── */
#aitutor-f-messages {
	padding: 16px;
	display: flex;
	flex-direction: column;
	gap: 16px;
}
.aitutor-f-msg-user {
	display: flex;
	justify-content: flex-end;
	animation: af-slide-up 0.2s ease;
}
.aitutor-f-msg-user .bubble {
	max-width: 72%;
	padding: 10px 14px;
	border-radius: 14px 14px 4px 14px;
	background: linear-gradient(135deg, #2680c9, #1560a0);
	color: var(--tvf-white);
	font-size: 14px;
	line-height: 1.6;
	box-shadow: 0 1px 4px rgba(0,0,0,0.12);
	word-break: keep-all;
	overflow-wrap: break-word;
	white-space: pre-wrap;
}
.aitutor-f-msg-bot {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	animation: af-slide-up 0.2s ease;
}
.aitutor-f-msg-bot .bot-icon {
	flex-shrink: 0;
	width: 30px;
	height: 30px;
	border-radius: 10px;
	background: linear-gradient(145deg, var(--tvf-blue-light), var(--tvf-blue));
	display: flex;
	align-items: center;
	justify-content: center;
}
.aitutor-f-msg-bot .bubble {
	max-width: 78%;
	padding: 10px 14px;
	border-radius: 4px 14px 14px 14px;
	background: var(--tvf-white);
	border: 1px solid var(--tvf-border);
	box-shadow: 0 1px 4px rgba(0,0,0,0.06);
	font-size: 14px;
	line-height: 1.6;
	color: var(--tvf-text);
}

/* ── 마크다운 prose (티처빌 전역 li{list-style:none} 리셋 덮어씀) ───────── */
.aitutor-f-prose p { margin: 0 0 6px; }
.aitutor-f-prose p:last-child { margin-bottom: 0; }
#aitutor-float-popup .aitutor-f-prose ul {
	list-style-type: disc;
	list-style-position: outside;
	padding-left: 1.25em;
	margin: 4px 0 6px;
}
#aitutor-float-popup .aitutor-f-prose ol {
	list-style-type: decimal;
	list-style-position: outside;
	padding-left: 1.25em;
	margin: 4px 0 6px;
}
#aitutor-float-popup .aitutor-f-prose ul > li,
#aitutor-float-popup .aitutor-f-prose ol > li {
	display: list-item;
	margin-bottom: 2px;
	list-style: inherit;
}
.aitutor-f-prose strong { font-weight: 700; }
.aitutor-f-prose em { font-style: italic; }
.aitutor-f-prose a { color: var(--tvf-blue); text-decoration: underline; }
.aitutor-f-prose h1, .aitutor-f-prose h2, .aitutor-f-prose h3,
.aitutor-f-prose h4, .aitutor-f-prose h5, .aitutor-f-prose h6 {
	font-weight: 700; line-height: 1.3; margin: 8px 0 4px;
}
.aitutor-f-prose h1 { font-size: 1.15em; }
.aitutor-f-prose h2 { font-size: 1.08em; }
.aitutor-f-prose h3 { font-size: 1.0em; }
.aitutor-f-prose blockquote {
	border-left: 3px solid var(--tvf-blue); margin: 6px 0;
	padding: 4px 10px; color: #64748b; background: #f8fafc;
}
.aitutor-f-prose hr { border: none; border-top: 1px solid var(--tvf-border); margin: 8px 0; }
.aitutor-f-prose pre {
	background: #1e293b; color: #e2e8f0; border-radius: 8px;
	padding: 10px 12px; margin: 6px 0; overflow-x: auto;
	font-size: 12px; line-height: 1.5;
}
.aitutor-f-prose pre code { background: none; padding: 0; font-size: inherit; color: inherit; }
.aitutor-f-prose code { background: #f1f5f9; padding: 1px 4px; border-radius: 4px; font-size: 12px; }
.aitutor-f-prose table { border-collapse: collapse; width: 100%; margin: 6px 0; font-size: 12px; }
.aitutor-f-prose th, .aitutor-f-prose td { border: 1px solid var(--tvf-border); padding: 5px 8px; text-align: left; }
.aitutor-f-prose th { background: var(--tvf-bg); font-weight: 600; }

/* ── 타이핑 인디케이터 ───────────────────────────────────────────────── */
.aitutor-f-typing {
	display: flex;
	align-items: center;
	gap: 4px;
	height: 18px;
}
.aitutor-f-typing span {
	width: 5px;
	height: 5px;
	border-radius: 50%;
	background: #b0bbc8;
	animation: af-bounce 1.2s infinite ease-in-out;
}
.aitutor-f-typing span:nth-child(2) { animation-delay: 0.2s; }
.aitutor-f-typing span:nth-child(3) { animation-delay: 0.4s; }

/* ── 입력바 ──────────────────────────────────────────────────────────── */
#aitutor-f-inputbar {
	flex-shrink: 0;
	padding: 12px 14px;
	background: var(--tvf-bg);
	border-top: 1px solid #eaecf4;
}
#aitutor-f-inputbox {
	display: flex;
	align-items: center;
	gap: 10px;
	background: var(--tvf-white);
	border-radius: 14px;
	padding: 10px 14px;
	border: 1.5px solid var(--tvf-border);
	box-shadow: 0 2px 8px rgba(0,0,0,0.04);
	transition: border-color 0.15s, box-shadow 0.15s;
}
#aitutor-f-inputbox.focused {
	border-color: var(--tvf-blue);
	box-shadow: 0 0 0 3px rgba(31,117,187,0.1), 0 2px 8px rgba(0,0,0,0.06);
}
#aitutor-f-input {
	flex: 1;
	background: transparent;
	border: none;
	outline: none;
	resize: none;
	padding: 0;
	font-size: 12pt;
	color: var(--tvf-text);
	font-family: inherit;
	letter-spacing: -0.01em;
	max-height: 100px;
	overflow-y: auto;
}
#aitutor-f-input::placeholder { color: #b0bbc8; font-size: 12pt; }
#aitutor-f-send {
	flex-shrink: 0;
	width: 34px;
	height: 34px;
	border-radius: 10px;
	border: none;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: all 0.15s;
	background: #eef0f6;
	color: #c0c8d8;
}
#aitutor-f-send.can-send {
	background: linear-gradient(135deg, var(--tvf-blue), var(--tvf-blue-dark));
	box-shadow: 0 2px 8px rgba(31,117,187,0.35);
	color: var(--tvf-white);
}
#aitutor-f-send:disabled { cursor: not-allowed; }
#aitutor-f-inputbar .f-hint {
	text-align: center;
	font-size: 11px;
	color: #b8c0d0;
	margin-top: 6px;
}
.f-quota {
	text-align: center;
	font-size: 12px;
	color: #5a6a7e;
	margin-top: 4px;
	font-weight: 500;
}
.f-limit-hint {
	text-align: center;
	font-size: 12px;
	color: #c0392b;
	margin-top: 6px;
	line-height: 1.4;
}

/* ── 애니메이션 ──────────────────────────────────────────────────────── */
@keyframes af-slide-up {
	from { opacity: 0; transform: translateY(6px); }
	to   { opacity: 1; transform: translateY(0); }
}
@keyframes af-bounce {
	0%, 80%, 100% { transform: scale(0.7); opacity: 0.5; }
	40%           { transform: scale(1);   opacity: 1; }
}

/* ── 최대화 오버라이드 ───────────────────────────────────────────────── */
#aitutor-float-popup.maximized #aitutor-f-header {
	height: 56px;
	padding: 0 24px;
	gap: 12px;
}
#aitutor-float-popup.maximized #aitutor-f-header .fh-icon {
	width: 32px; height: 32px; border-radius: 12px;
}
#aitutor-float-popup.maximized #aitutor-f-header .fh-brand strong { font-size: 14px; }
#aitutor-float-popup.maximized #aitutor-f-header .fh-brand span { font-size: 12px; }
#aitutor-float-popup.maximized #aitutor-f-scroll {
	padding: 0;
	align-items: center;
}
#aitutor-float-popup.maximized #aitutor-f-welcome {
	padding: 28px 24px 0;
}
#aitutor-float-popup.maximized #aitutor-f-welcome-msg .bot-icon {
	width: 32px; height: 32px; border-radius: 12px;
}
#aitutor-float-popup.maximized #aitutor-f-welcome-msg .bubble {
	font-size: 15px;
	padding: 12px 16px;
}
#aitutor-float-popup.maximized #aitutor-f-chips {
	margin-left: 44px;
	gap: 8px;
}
#aitutor-float-popup.maximized .aitutor-f-chip {
	font-size: 13px;
	padding: 8px 16px;
}
#aitutor-float-popup.maximized #aitutor-f-welcome,
#aitutor-float-popup.maximized #aitutor-f-messages {
	width: 100%;
	max-width: 860px;
	box-sizing: border-box;
}
#aitutor-float-popup.maximized #aitutor-f-messages {
	padding: 28px 24px;
	gap: 20px;
}
#aitutor-float-popup.maximized .aitutor-f-msg-user .bubble {
	font-size: 15px;
	padding: 12px 16px;
	border-radius: 16px 16px 4px 16px;
	max-width: 68%;
}
#aitutor-float-popup.maximized .aitutor-f-msg-bot {
	gap: 12px;
}
#aitutor-float-popup.maximized .aitutor-f-msg-bot .bot-icon {
	width: 32px; height: 32px; border-radius: 12px;
}
#aitutor-float-popup.maximized .aitutor-f-msg-bot .bubble {
	font-size: 15px;
	padding: 12px 16px;
	border-radius: 4px 16px 16px 16px;
	max-width: 75%;
}
#aitutor-float-popup.maximized .aitutor-f-prose p { margin: 0 0 8px; }
#aitutor-float-popup.maximized .aitutor-f-prose ul,
#aitutor-float-popup.maximized .aitutor-f-prose ol { padding-left: 1.35em; margin: 4px 0 8px; }
#aitutor-float-popup.maximized .aitutor-f-prose table { font-size: 13px; margin: 8px 0; }
#aitutor-float-popup.maximized .aitutor-f-prose th,
#aitutor-float-popup.maximized .aitutor-f-prose td { padding: 6px 10px; }
#aitutor-float-popup.maximized .aitutor-f-prose code { font-size: 13px; padding: 1px 5px; }
#aitutor-float-popup.maximized #aitutor-f-inputbar {
	padding: 16px 24px;
}
#aitutor-float-popup.maximized #aitutor-f-inputbox {
	max-width: 780px;
	margin: 0 auto;
	border-radius: 16px;
	padding: 12px 16px;
	gap: 12px;
}
#aitutor-float-popup.maximized .f-hint-row {
	max-width: 780px;
	margin-left: auto;
	margin-right: auto;
}
#aitutor-float-popup.maximized #aitutor-f-input {
	font-size: 15px;
	max-height: 128px;
}
#aitutor-float-popup.maximized #aitutor-f-send {
	width: 36px; height: 36px; border-radius: 12px;
}
#aitutor-float-popup.maximized .aitutor-f-typing span {
	width: 6px; height: 6px;
}

/* 최대화 — 사이드바 */
#aitutor-float-popup.maximized #aitutor-f-sidebar {
	position: relative;
	top: auto; left: auto; right: auto; bottom: auto;
	width: 280px;
	flex-shrink: 0;
	background: #ffffff;
}
#aitutor-float-popup.maximized #aitutor-f-sidebar.hidden {
	display: flex;
}
#aitutor-float-popup.maximized #aitutor-f-sidebar-btn {
	display: none;
}
#aitutor-float-popup.maximized #aitutor-f-new-chat {
	margin: 16px 20px 12px;
	padding: 10px 16px;
	font-size: 13px;
	border-radius: 12px;
}
#aitutor-float-popup.maximized #aitutor-f-conv-list {
	padding: 0 12px 8px;
}
#aitutor-float-popup.maximized .f-conv-label {
	font-size: 10px;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	color: #a0aabf;
	padding: 8px;
	display: block;
}
#aitutor-float-popup.maximized .f-conv-item {
	padding: 8px 12px;
	margin-bottom: 2px;
}
#aitutor-float-popup.maximized #aitutor-f-sidebar-tips {
	padding: 16px 24px;
}
#aitutor-float-popup.maximized #aitutor-f-sidebar-tips .f-tips-label {
	font-size: 10.5px;
	letter-spacing: 0.1em;
	margin-bottom: 8px;
}

/* ── 모바일 미니 모드 전용 요소 (기본 숨김) ─────────────────────────────── */
#aitutor-f-mini-handle,
#aitutor-f-mini-chips {
	display: none;
}

/* ── 모바일 ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
	#aitutor-float-btn {
		bottom: calc(80px + env(safe-area-inset-bottom));
		right: 10px;
	}

	/* 전체화면 모드 (질문 전송 후 또는 기존 maximize) */
	#aitutor-float-popup:not(.mini-mode) {
		bottom: 0 !important;
		right: 0 !important;
		width: 100vw !important;
		height: 100dvh !important;
		border-radius: 0 !important;
	}

	/* ── 미니 모드: 하단 입력바 + 칩만 ─────────────────────────────── */
	#aitutor-float-popup.mini-mode {
		bottom: calc(70px + env(safe-area-inset-bottom)) !important;
		right: 0 !important;
		top: auto !important;
		width: 100vw !important;
		height: auto !important;
		border-radius: 16px 16px 0 0 !important;
		box-shadow: 0 -4px 24px rgba(0,0,0,0.13);
	}
	/* 헤더·스크롤 영역 숨김 */
	#aitutor-float-popup.mini-mode #aitutor-f-header,
	#aitutor-float-popup.mini-mode #aitutor-f-scroll,
	#aitutor-float-popup.mini-mode #aitutor-f-sidebar { display: none !important; }
	/* 닫기 핸들 */
	#aitutor-float-popup.mini-mode #aitutor-f-mini-handle {
		display: flex;
		justify-content: center;
		align-items: center;
		padding: 10px 0 0;
		cursor: pointer;
	}
	#aitutor-f-mini-close-btn {
		display: flex;
		align-items: center;
		justify-content: center;
		width: 36px;
		height: 22px;
		border-radius: 999px;
		background: var(--tvf-border);
		color: var(--tvf-text-muted);
	}
	/* body가 flex: 1이 아닌 auto로 수축되도록 */
	#aitutor-float-popup.mini-mode #aitutor-f-body {
		flex: none;
		overflow: visible;
	}
	/* 미니 칩 표시 */
	#aitutor-float-popup.mini-mode #aitutor-f-mini-chips {
		display: flex;
		gap: 8px;
		padding: 10px 14px 14px;
		overflow-x: auto;
		overflow-y: hidden;
		scrollbar-width: none;
		-webkit-overflow-scrolling: touch;
	}
	#aitutor-float-popup.mini-mode #aitutor-f-mini-chips::-webkit-scrollbar { display: none; }
	#aitutor-float-popup.mini-mode #aitutor-f-mini-chips .aitutor-f-chip {
		flex-shrink: 0;
		white-space: nowrap;
	}
	/* 입력바 강제 표시 (block: 기존 수직 레이아웃 유지) */
	#aitutor-float-popup.mini-mode #aitutor-f-inputbar { display: block !important; }

	/* 전체화면/미니 모두: 플로팅 버튼 숨김 */
	body.aitutor-popup-open #aitutor-float-btn,
	body.aitutor-mini-open #aitutor-float-btn { display: none; }
}

/* 최대화 시 플로팅 버튼 숨김 (데스크탑 포함) */
body:has(#aitutor-float-popup.maximized) #aitutor-float-btn { display: none; }

/* ── 랜딩 배너 (최대화 화면 상단, 데스크탑 전용) ─────────────────────── */
@font-face {
	font-family: 'GMarketSans';
	src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2001@1.1/GmarketSansLight.woff') format('woff');
	font-weight: 300;
	font-display: swap;
}
@font-face {
	font-family: 'GMarketSans';
	src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2001@1.1/GmarketSansMedium.woff') format('woff');
	font-weight: 500;
	font-display: swap;
}
@font-face {
	font-family: 'GMarketSans';
	src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_2001@1.1/GmarketSansBold.woff') format('woff');
	font-weight: 700;
	font-display: swap;
}
.landing-banner { margin-bottom: 30px; width: 100%; display: flex; align-items: center; gap: 10px; }
.landing-banner .item { width: 100%; background: #fff; color: #0f172a; display: grid; grid-template-columns: 115px auto; align-items: center; gap: 10px; height: 85px; text-align: left; font-family: 'GMarketSans'; position: relative; font-size: 15px; pointer-events: none; cursor: default; }
.landing-banner .item img { margin: 0 auto; }
.landing-banner .item:nth-child(1) img { width: 75%; margin-top: -10px; }
.landing-banner .item:nth-child(2) img { width: 65%; margin-top: -10px; }
.landing-banner .item:nth-child(3) img { width: 90%; }
.landing-banner .item label { position: absolute; left: 0; bottom: calc(100% + 5px); background: #b461e4; color: #fff; padding: 2px 5px; font-weight: 300; font-size: 14px; cursor: default; }
.landing-banner .item label::after,
.landing-banner .item label::before { content: ''; width: 0; height: 0; border-style: solid; position: absolute; left: 100%; }
.landing-banner .item label::after  { border-width: 13px 6px 0 0; border-color: #b461e4 transparent transparent transparent; top: 0; }
.landing-banner .item label::before { border-width: 13px 0 0 6px; border-color: transparent transparent transparent #b461e4; bottom: 0; }
/* 모바일에서는 배너 숨김 */
@media (max-width: 768px) { .landing-banner { display: none; } }