/* Основные стили */
body {
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
	line-height: 1.6;
	margin: 0;
	padding: 0;
	background-color: #f4f4f4;
	color: #333;
}

header {
	background-color: #3a5a78;
	color: #fff;
	padding: 1.5rem 1rem;
	text-align: center;
	border-bottom: 4px solid #2c4a63; 
	/*position: sticky;*/ /* Для "липкой" шапки */
	top: 0;
	z-index: 1000;
	width: 100%;
	box-sizing: border-box;
	/*transition: top 0.3s ease-in-out;*/ /* Для анимации скрытия/показа */
}

/* Класс для скрытия шапки (если будете использовать JS для этого) */
header.header-hidden {
	top: -250px; /* Примерное значение, должно быть больше высоты шапки */
}


header h1 {
	margin: 0 0 0.5rem 0;
	font-size: 2.2rem;
}

header p {
	margin-bottom: 1.5rem;
	font-size: 1.1rem;
}

.search-container {
	max-width: 600px;
	margin: 0 auto;
	position: relative;
}

#searchInput {
	width: 100%;
	padding: 0.8rem 1rem;
	padding-right: 2.8rem;
	font-size: 1.1rem;
	border: 1px solid #ccc;
	border-radius: 25px; 
	box-sizing: border-box; 
	outline: none; 
	transition: border-color 0.3s ease;
}

#searchInput:focus {
	border-color: #a9c1d8; 
}

.clear-search-btn {
	position: absolute;
	top: 50%;
	right: 0.8rem;
	transform: translateY(-50%);
	font-size: 1.6rem;
	color: #aaa;
	cursor: pointer;
	user-select: none; 
	transition: color 0.2s ease;
	line-height: 1;
}

.clear-search-btn:hover {
	color: #333;
}

.filters-container {
	max-width: 900px;
	margin: 1rem auto 0 auto;
	padding: 0.5rem 1rem;
	text-align: right; 
	background-color: #fff;
	border-radius: 8px 8px 0 0;
	box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

#markerFilter {
	padding: 0.6rem 0.8rem;
	font-size: 0.95rem;
	border-radius: 5px;
	border: 1px solid #ccc;
	background-color: #fff;
	min-width: 200px;
}


main {
	max-width: 900px;
	margin: 0 auto 2rem auto;
	padding: 1rem;
	background-color: #fff;
	box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
	border-radius: 0 0 8px 8px;
}


.loading-message {
	text-align: center;
	font-style: italic;
	color: #777;
	padding: 2rem 0;
}
.loading-message.error {
	color: #d9534f;
	font-weight: bold;
}

/* Стили для словарной статьи */
.entry {
	border: 1px solid #e0e0e0;
	background-color: #ffffff;
	padding: 1.5rem;
	margin-bottom: 1.5rem;
	border-radius: 8px;
	box-shadow: 0 1px 3px rgba(0,0,0,0.05);
	transition: box-shadow 0.3s ease;
}

.entry:hover {
	 box-shadow: 0 4px 8px rgba(0,0,0,0.08);
}

.term-ru {
	font-size: 1.5rem;
	font-weight: 600;
	color: #2c4a63; 
	margin: 0 0 0.3rem 0;
}

.term-en {
	font-style: italic;
	color: #555;
	margin-right: 1rem;
	font-size: 0.95rem;
}

.pronunciation {
	color: #777;
	font-size: 0.95rem;
	margin-right: 1rem; 
}

.definition {
	margin: 0.8rem 0;
}

.definition strong {
	font-weight: 600;
	color: #444;
}

.example {
	font-style: italic;
	color: #666;
	margin: 0.5rem 0;
	padding-left: 1rem;
	border-left: 3px solid #a9c1d8; 
}

.example strong {
	font-style: normal;
}

.marker {
	display: inline-block;
	background-color: #e7f0f7; 
	color: #3a5a78; 
	padding: 0.2rem 0.6rem;
	border-radius: 12px;
	font-size: 0.85rem;
	margin-top: 0.5rem;
	font-weight: 500;
	margin-right: 0.5rem;
}

.period-marker {
	 background-color: #f0f0f0;
	 color: #666;
	 display: inline-block;
	 padding: 0.2rem 0.6rem;
	 border-radius: 12px;
	 font-size: 0.85rem;
	 margin-top: 0.5rem;
	 margin-left: 0.5rem;
	 font-weight: 500;
}

/* Подсветка совпадений */
.highlight {
	background-color: #ffe082;
	/* font-weight: bold; убрал, может быть слишком навязчиво */
	padding: 0.1em 0;
	border-radius: 3px;
}


footer {
	text-align: center;
	margin-top: 2rem;
	padding: 1rem;
	font-size: 0.9rem;
	color: #777;
}

/* Стили для заголовков периодов */
.period-heading {
	font-size: 1.6rem; 
	font-weight: 600;
	color: #3a5a78; 
	margin-top: 2.5rem; 
	margin-bottom: 1rem;
	padding-bottom: 0.5rem;
	border-bottom: 2px solid #a9c1d8; 
	text-transform: uppercase; 
	letter-spacing: 1px; 
}

main > .period-heading:first-of-type {
	margin-top: 0;
}

/* Кнопка "Наверх" */
#scrollToTopBtn {
	position: fixed;
	bottom: 20px;
	right: 20px;
	z-index: 999;
	border: none;
	outline: none;
	background-color: #3a5a78;
	color: white;
	cursor: pointer;
	width: 48px; 
	height: 48px;
	border-radius: 50%;
	font-size: 20px; 
	line-height: 48px;
	text-align: center;
	padding: 0; 

	box-shadow: 0 2px 5px rgba(0,0,0,0.2);
	transition: opacity 0.3s, visibility 0.3s, background-color 0.3s;
}

#scrollToTopBtn:hover {
	background-color: #2c4a63;
}

/* Адаптивность */
@media (max-width: 768px) {
	header {
		padding: 1rem;
	}
	header h1 {
		font-size: 1.8rem;
	}
	header p {
		font-size: 0.95rem;
		margin-bottom: 1rem;
	}
	#searchInput {
		font-size: 1rem;
		padding-right: 2.5rem; 
	}
	.clear-search-btn {
		font-size: 1.4rem;
		right: 0.7rem;
	}

	.filters-container {
		text-align: left;
		margin: 0.5rem auto;
	}
	#markerFilter {
		width: 100%;
		margin-top: 0.5rem;
	}

	main {
		margin: 0 auto 1rem auto;
		padding: 0.5rem;
		border-radius: 8px;
	}
	.entry {
		padding: 1rem;
	}
	.term-ru {
		font-size: 1.3rem;
	}
	.period-heading {
		font-size: 1.3rem;
		margin-top: 2rem;
	}
	#scrollToTopBtn {
		width: 40px;
		height: 40px;
		font-size: 18px;
		line-height: 40px;
		bottom: 15px;
		right: 15px;
	}
}