@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

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

:root {
	--primary: #7c3aed;
	--primary-light: #a78bfa;
	--primary-dark: #5b21b6;
	--secondary: #f59e0b;
	--bg-deep: #0f0a1e;
	--bg-card: rgba(26, 17, 52, 0.85);
	--bg-message: rgba(49, 32, 95, 0.7);
	--border: rgba(167, 139, 250, 0.15);
	--text-primary: #f5f3ff;
	--text-muted: #a78bfa;
	--user-gradient: linear-gradient(135deg, #7c3aed, #a855f7);
	--accent-glow: rgba(124, 58, 237, 0.4);
}

body, html {
	height: 100%;
	font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
	background: var(--bg-deep);
	color: var(--text-primary);
	overflow: hidden;
}

/* Animated background */
body::before {
	content: '';
	position: fixed;
	top: -50%;
	left: -50%;
	width: 200%;
	height: 200%;
	background:
		radial-gradient(ellipse at 20% 20%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
		radial-gradient(ellipse at 80% 80%, rgba(168, 85, 247, 0.1) 0%, transparent 50%),
		radial-gradient(ellipse at 50% 50%, rgba(245, 158, 11, 0.05) 0%, transparent 60%);
	z-index: -1;
	animation: bgPulse 8s ease-in-out infinite alternate;
}

@keyframes bgPulse {
	0% { transform: scale(1) rotate(0deg); }
	100% { transform: scale(1.05) rotate(2deg); }
}

/* Floating particles */
body::after {
	content: '🎓 📚 ✏️ 🏫 📝';
	position: fixed;
	top: 5%;
	right: 3%;
	font-size: 1.2rem;
	opacity: 0.08;
	letter-spacing: 8px;
	writing-mode: vertical-rl;
	z-index: -1;
}

.chat-container {
	display: flex;
	flex-direction: column;
	max-width: 820px;
	height: 92vh;
	margin: 4vh auto;
	background: var(--bg-card);
	border-radius: 24px;
	box-shadow:
		0 32px 64px -12px rgba(0, 0, 0, 0.6),
		0 0 0 1px var(--border),
		inset 0 1px 0 rgba(167, 139, 250, 0.1);
	backdrop-filter: blur(20px);
	overflow: hidden;
}

/* ─── HEADER ─────────────────────────────── */
.chat-header {
	padding: 18px 28px;
	background: linear-gradient(135deg, rgba(91, 33, 182, 0.6), rgba(124, 58, 237, 0.4));
	border-bottom: 1px solid var(--border);
	display: flex;
	align-items: center;
	justify-content: space-between;
	position: relative;
	overflow: hidden;
}

.chat-header::before {
	content: '';
	position: absolute;
	top: 0; left: 0; right: 0; bottom: 0;
	background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23a78bfa' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
	opacity: 0.5;
}

.bot-info {
	display: flex;
	align-items: center;
	gap: 14px;
	position: relative;
}

.avatar-container {
	position: relative;
}

.bot-avatar {
	width: 52px;
	height: 52px;
	border-radius: 16px;
	object-fit: cover;
	background: linear-gradient(135deg, #7c3aed, #a855f7);
	padding: 6px;
	box-shadow: 0 0 20px var(--accent-glow), 0 0 0 2px rgba(167, 139, 250, 0.3);
}

.avatar {
	width: 38px;
	height: 38px;
	border-radius: 12px;
	object-fit: cover;
	background: linear-gradient(135deg, #7c3aed, #a855f7);
	padding: 4px;
	flex-shrink: 0;
}

.user-message .avatar {
	background: linear-gradient(135deg, #f59e0b, #fbbf24);
	padding: 3px;
}

.status-indicator {
	position: absolute;
	bottom: -2px;
	right: -2px;
	width: 14px;
	height: 14px;
	background: #10b981;
	border-radius: 50%;
	border: 2px solid #0f0a1e;
	box-shadow: 0 0 8px rgba(16, 185, 129, 0.7);
	animation: pulse-status 2s ease-in-out infinite;
}

@keyframes pulse-status {
	0%, 100% { box-shadow: 0 0 8px rgba(16, 185, 129, 0.7); }
	50% { box-shadow: 0 0 16px rgba(16, 185, 129, 1); }
}

.text-info h1 {
	font-size: 1.2rem;
	font-weight: 700;
	color: #f5f3ff;
	letter-spacing: 0.3px;
	margin-bottom: 3px;
}

.text-info p {
	font-size: 0.8rem;
	color: var(--text-muted);
	font-weight: 500;
}

/* Header badge */
.header-badge {
	background: rgba(245, 158, 11, 0.15);
	border: 1px solid rgba(245, 158, 11, 0.3);
	color: #fbbf24;
	font-size: 0.72rem;
	font-weight: 600;
	padding: 5px 12px;
	border-radius: 20px;
	letter-spacing: 0.5px;
	text-transform: uppercase;
}

/* ─── CHAT BOX ─────────────────────────────── */
.chat-box {
	flex: 1;
	overflow-y: auto;
	padding: 28px;
	display: flex;
	flex-direction: column;
	gap: 18px;
	scroll-behavior: smooth;
}

.chat-box::-webkit-scrollbar { width: 6px; }
.chat-box::-webkit-scrollbar-track { background: transparent; }
.chat-box::-webkit-scrollbar-thumb {
	background: rgba(167, 139, 250, 0.2);
	border-radius: 4px;
}
.chat-box::-webkit-scrollbar-thumb:hover {
	background: rgba(167, 139, 250, 0.4);
}

/* ─── MESSAGES ─────────────────────────────── */
.message {
	display: flex;
	gap: 12px;
	max-width: 82%;
	align-items: flex-end;
}

.user-message { align-self: flex-end; }
.bot-message  { align-self: flex-start; }

.message-content {
	padding: 14px 18px;
	border-radius: 18px;
	font-size: 0.93rem;
	line-height: 1.6;
	position: relative;
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.bot-message .message-content {
	background: var(--bg-message);
	color: #ede9fe;
	border-bottom-left-radius: 4px;
	border: 1px solid var(--border);
}

.user-message .message-content {
	background: var(--user-gradient);
	color: #ffffff;
	border-bottom-right-radius: 4px;
	box-shadow: 0 4px 20px var(--accent-glow);
}

.error-message .message-content {
	background: rgba(239, 68, 68, 0.15);
	border: 1px solid rgba(239, 68, 68, 0.35);
	color: #fca5a5;
}

.time {
	display: block;
	font-size: 0.68rem;
	margin-top: 7px;
	opacity: 0.6;
	text-align: right;
	font-weight: 500;
}

/* ─── FOOTER / INPUT ─────────────────────────── */
.chat-footer {
	padding: 18px 28px 22px;
	background: rgba(91, 33, 182, 0.12);
	border-top: 1px solid var(--border);
}

.input-form {
	display: flex;
	gap: 12px;
	background: rgba(167, 139, 250, 0.07);
	border: 1.5px solid rgba(167, 139, 250, 0.2);
	border-radius: 32px;
	padding: 8px 8px 8px 22px;
	transition: all 0.3s ease;
}

.input-form:focus-within {
	border-color: rgba(167, 139, 250, 0.6);
	background: rgba(167, 139, 250, 0.1);
	box-shadow: 0 0 0 4px rgba(124, 58, 237, 0.12);
}

.input-form input {
	flex: 1;
	background: transparent;
	border: none;
	color: #f5f3ff;
	font-size: 0.95rem;
	outline: none;
	font-family: inherit;
	font-weight: 500;
}

.input-form input::placeholder { color: #6d5cae; }

.input-form button {
	background: var(--user-gradient);
	border: none;
	border-radius: 50%;
	width: 46px;
	height: 46px;
	color: white;
	font-size: 1rem;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
	flex-shrink: 0;
	box-shadow: 0 4px 12px var(--accent-glow);
}

.input-form button:hover {
	transform: scale(1.08);
	box-shadow: 0 6px 20px var(--accent-glow);
}

.input-form button:active { transform: scale(0.94); }

/* ─── ANIMATIONS ─────────────────────────────── */
@keyframes slideIn {
	from { opacity: 0; transform: translateY(16px); }
	to   { opacity: 1; transform: translateY(0); }
}

.slide-in { animation: slideIn 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards; }

.intro-animation {
	animation: slideIn 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
	animation-delay: 0.2s;
}

/* ─── TYPING INDICATOR ─────────────────────────── */
.typing-dots {
	display: flex;
	gap: 5px;
	padding: 4px 6px;
}

.typing-dots span {
	width: 8px;
	height: 8px;
	background: var(--primary-light);
	border-radius: 50%;
	animation: blink 1.4s infinite both;
}

.typing-dots span:nth-child(1) { animation-delay: 0.2s; }
.typing-dots span:nth-child(2) { animation-delay: 0.4s; }
.typing-dots span:nth-child(3) { animation-delay: 0.6s; }

@keyframes blink {
	0%   { opacity: 0.2; transform: scale(0.8) translateY(0); }
	40%  { opacity: 1;   transform: scale(1.1) translateY(-3px); }
	100% { opacity: 0.2; transform: scale(0.8) translateY(0); }
}

/* ─── RESPONSIVE ─────────────────────────────── */
@media (max-width: 768px) {
	.chat-container {
		margin: 0;
		height: 100vh;
		border-radius: 0;
		max-width: 100%;
	}
	.header-badge { display: none; }
}