/* Responsive styles for the public pages of kremenaya.com.
   Keeps the original look (wood background, glossy menu, leaves, framed photos);
   the admin panel still uses style.css/admin.css. */

:root {
	color-scheme: light;
	--wood: #8a6a48;
	--sheet: #eeeff1;
	--panel: #fff;
	--text: #303030;
	--muted: #63676a;
	--link: #36424a;
	--accent: #4f8a2b;
	--accent-soft: #e6f2da;
	--line: #d6d8d2;
	--radius: 14px;
	--shadow: 0 1px 2px rgba(0, 0, 0, .14), 0 6px 18px rgba(0, 0, 0, .08);
	--button: linear-gradient(#fefefe, #ececea 55%, #dcdcd8);
	--button-active: linear-gradient(#f8fcf6, #c7e3b6);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }

body {
	margin: 0;
	background: var(--wood) url(../images/bg.jpg) repeat center top;
	background-image: image-set(url(../images/bg.webp) type("image/webp"), url(../images/bg.jpg) type("image/jpeg"));
	color: var(--text);
	font: 16px/1.6 "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

img { max-width: 100%; height: auto; border: 0; }

a { color: var(--link); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .15em; }
a:hover { color: var(--accent); }

:focus-visible { outline: 3px solid #24520f; outline-offset: 2px; }

h1, h2, h3 { line-height: 1.3; }

.visually-hidden {
	position: absolute !important;
	width: 1px; height: 1px;
	overflow: hidden;
	clip: rect(0 0 0 0);
	white-space: nowrap;
}

.skip-link { position: absolute; top: -100px; left: 12px; z-index: 100; padding: 8px 14px; border-radius: 8px; background: #fff; }
.skip-link:focus { top: 12px; }

/* Page frame ----------------------------------------------------------------------------- */

.page {
	display: flex;
	flex-direction: column;
	max-width: 1000px;
	min-height: 100vh;
	margin: 0 auto;
	background: var(--sheet);
	box-shadow: 0 0 22px rgba(0, 0, 0, .45);
}

@media (min-width: 1040px) {
	.page { min-height: 0; margin: 16px auto 24px; border-radius: 18px; overflow: hidden; }
}

.site-header { position: relative; }
.site-header__home { display: block; }
.site-header__home img {
	display: block;
	width: 100%;
	height: auto;
	aspect-ratio: 1000 / 292;
	min-height: 140px;
	object-fit: cover;
	object-position: 50% 0;
}

.nav-toggle { display: none; }

.layout {
	flex: 1;
	display: grid;
	grid-template-columns: 240px minmax(0, 1fr);
	gap: 24px;
	padding: 24px 20px 36px;
}

.main { min-width: 0; }
.main:focus { outline: none; }

.panel {
	padding: 24px 40px 32px;
	border-radius: var(--radius);
	background: var(--panel);
	box-shadow: var(--shadow);
}

/* Sidebar menu ---------------------------------------------------------------------------- */

.sidebar { position: relative; }
.sidebar::before {
	content: "";
	position: absolute;
	z-index: 0;
	top: -14px;
	left: -38px;
	width: 302px;
	height: 412px;
	background: url(../images/bg_menu_leaves.png) no-repeat left top;
	background-image: image-set(url(../images/bg_menu_leaves.webp) type("image/webp"), url(../images/bg_menu_leaves.png) type("image/png"));
	pointer-events: none;
}

.menu { position: relative; z-index: 2; margin: 0; padding: 0; list-style: none; }
.menu__item { position: relative; margin: 0 0 6px; }
.menu__link {
	display: block;
	width: 100%;
	padding: 7px 14px;
	border: 1px solid #c4c6c0;
	border-radius: 6px;
	background: var(--button);
	box-shadow: inset 0 1px 0 #fff, 0 2px 3px rgba(0, 0, 0, .18);
	color: #1b232a;
	font: inherit;
	font-size: 16px;
	text-align: left;
	text-decoration: none;
	cursor: pointer;
}
.menu__link:hover,
.menu__item.is-active > .menu__link,
.menu__item.is-open > .menu__link { background: var(--button-active); color: #1b232a; }
.menu__link--parent { position: relative; padding-right: 32px; }
.menu__link--parent::after {
	content: "";
	position: absolute;
	top: 50%;
	right: 14px;
	width: 7px;
	height: 7px;
	margin-top: -5px;
	border-right: 2px solid #5b6157;
	border-bottom: 2px solid #5b6157;
	transform: rotate(-45deg);
}

.submenu { display: none; position: absolute; z-index: 30; top: -6px; left: 100%; width: 250px; padding-left: 10px; }
.submenu__list {
	margin: 0;
	padding: 12px 14px 8px 30px;
	border-radius: 10px;
	background: #fff;
	box-shadow: 0 4px 18px rgba(0, 0, 0, .22);
	font-size: 13px;
	line-height: 1.35;
	text-transform: uppercase;
}
.submenu__list li { margin: 0 0 8px; }
.menu__item.is-open > .submenu { display: block; }
@media (hover: hover) and (min-width: 900px) {
	.menu__item:hover > .submenu { display: block; }
}
html:not(.js) .menu__item:focus-within > .submenu { display: block; }

.slogan {
	position: relative;
	z-index: 1;
	margin: 110px 0 0;
	color: #333a33;
	font: italic 18px/1.65 Calibri, "Myriad Pro", Arial, sans-serif;
}
.slogan p { margin: 0 0 6px; }
.slogan__author { display: block; text-align: right; font-style: normal; }

/* Shared content blocks ------------------------------------------------------------------- */

.page-title {
	margin: 0 0 22px;
	color: #2c3530;
	font-size: 17px;
	font-weight: 700;
	letter-spacing: .03em;
	text-align: center;
	text-transform: uppercase;
}
.page-title a { color: inherit; }
.section-title { margin: 30px 0 18px; font-size: 17px; text-align: center; }

.breadcrumbs { margin: 0 0 14px; font-size: 15px; text-align: center; }
.breadcrumbs ol { display: inline-flex; flex-wrap: wrap; justify-content: center; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li + li::before { content: "→"; padding: 0 8px; color: var(--muted); }
.breadcrumbs a { color: #1b232a; }

.prose { overflow-wrap: break-word; }
.prose p { margin: 0 0 15px; }
.prose img { max-width: 100%; height: auto; }
.prose table { display: block; max-width: 100%; overflow-x: auto; }
.prose iframe, .prose video, .prose audio { max-width: 100%; }
.prose img.expando, .prose a.thickbox img { cursor: zoom-in; }

.more-link { margin: 26px 0 0; font-size: 17px; font-weight: 600; text-align: center; }

.link-list { margin: 0; padding-left: 1.5em; }
.link-list li { margin: 0 0 14px; }

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	min-height: 42px;
	padding: 8px 16px;
	border: 1px solid #c4c6c0;
	border-radius: 8px;
	background: var(--button);
	box-shadow: inset 0 1px 0 #fff, 0 1px 2px rgba(0, 0, 0, .15);
	color: #1b232a;
	font-weight: 600;
	text-decoration: none;
}
.btn:hover { background: var(--button-active); color: #1b232a; }

.notice { padding: 10px 14px; border-radius: 8px; background: var(--accent-soft); text-align: center; }

/* Home ----------------------------------------------------------------------------------- */

.tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 270px)); justify-content: center; gap: 24px 40px; margin: 0 0 28px; padding: 0; list-style: none; }
.tiles a {
	display: block;
	padding: 9px;
	border-radius: 12px;
	background: #fff;
	box-shadow: var(--shadow);
}
.tiles img { display: block; width: 100%; height: auto; aspect-ratio: 237 / 150; object-fit: cover; border-radius: 8px; transition: transform .25s; }
.tiles a:hover img { transform: scale(1.02); }

.home-text { position: relative; }
.home-text p { margin: 0 0 12px; text-indent: 2em; }
.epigraph {
	display: table;
	margin: 0 auto 22px;
	padding: 0 0 18px;
	border-bottom: 1px solid var(--line);
	font: italic 19px/1.55 Calibri, "Myriad Pro", Arial, sans-serif;
}
.epigraph p { margin: 0; text-indent: 0; }
.epigraph .epigraph__author { margin-top: 6px; text-align: right; font-style: normal; }

/* Galleries ------------------------------------------------------------------------------ */

.thumbs {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
	gap: 22px 16px;
	margin: 0 0 8px;
	padding: 0;
	list-style: none;
	font-size: 13px;
	line-height: 1.35;
	text-align: center;
}
.thumbs__img { display: block; margin: 0 0 8px; border-radius: 6px; overflow: hidden; background: #e7e8e4; box-shadow: 0 0 0 2px #b5b7b4; }
.thumbs__img img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .25s; }
.thumbs__img:hover img { transform: scale(1.05); }
.thumbs__date { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }

.pager { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin: 26px 0 0; font-size: 15px; }
.pager a, .pager__current {
	min-width: 42px;
	padding: 8px 12px;
	border: 1px solid var(--line);
	border-radius: 8px;
	background: #fff;
	text-align: center;
	text-decoration: none;
}
.pager a:hover { background: var(--accent-soft); }
.pager__current { border-color: #b9d79f; background: var(--accent-soft); font-weight: 700; }

.media-list { margin: 0; padding: 0; list-style: none; }
.media-list li { display: flex; align-items: center; gap: 20px; margin: 0 0 18px; }
.media-list img { display: block; width: 140px; height: auto; border: 2px solid #b5b7b4; border-radius: 6px; }

/* Photo page ----------------------------------------------------------------------------- */

.photo { text-align: center; }
.photo__title { margin: 0 0 16px; color: var(--link); font-size: 24px; font-weight: 400; }
.photo__figure { position: relative; max-width: 520px; margin: 0 auto 14px; }
.photo__zoom { display: block; padding: 10px; border-radius: 12px; background: #fff; box-shadow: var(--shadow); cursor: zoom-in; }
.photo__zoom img { display: block; width: 100%; height: auto; margin: 0 auto; border-radius: 6px; }
.photo__nav { display: flex; align-items: center; justify-content: space-between; gap: 12px; max-width: 520px; margin: 0 auto 22px; }
.photo__nav .btn { flex: 0 0 auto; }
.photo__nav .is-placeholder { visibility: hidden; }
.photo__counter { color: var(--muted); font-size: 14px; white-space: nowrap; }
.photo__body { max-width: 600px; margin: 0 auto; text-align: left; }
.photo__audio { margin: 0 0 16px; }
.photo__audio audio { display: block; width: 100%; }
.photo__more { text-align: right; font-weight: 600; }
.photo__admin { margin: 18px 0 0; text-align: center; font-weight: 700; }
.photo__admin a { color: #c00; }

.lightbox { position: fixed; inset: 0; width: auto; max-width: none; height: auto; max-height: none; margin: 0; padding: 0; border: 0; background: rgba(12, 14, 12, .94); }
.lightbox[open] { display: flex; align-items: center; justify-content: center; }
.lightbox::backdrop { background: rgba(0, 0, 0, .6); }
.lightbox__img { max-width: 96%; max-height: 92vh; max-height: 92dvh; object-fit: contain; }
.lightbox__close {
	position: absolute;
	top: 12px;
	right: 12px;
	width: 46px;
	height: 46px;
	border: 0;
	border-radius: 50%;
	background: rgba(255, 255, 255, .92);
	color: #1b232a;
	font-size: 30px;
	line-height: 1;
	cursor: pointer;
}

/* Info, albums, literature --------------------------------------------------------------- */

.dated-list { margin: 0; padding: 0; list-style: none; }
.dated-list li { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 16px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.dated-list time { color: var(--muted); font-size: 14px; white-space: nowrap; }

.album-cover { margin: 10px 0 24px; text-align: center; }
.album-cover img { display: inline-block; padding: 10px; border-radius: 10px; background: #fff; box-shadow: var(--shadow); }

.links-group { margin: 0 0 26px; }
.links-group h2 { margin: 0 0 12px; font-size: 18px; text-align: center; }
.links-group li { margin: 0 0 12px; }
.links-group p { margin: 2px 0 0; color: var(--muted); font-size: 14px; }

.author { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; margin: 0 0 10px; }
.author__photo { flex: 0 0 auto; max-width: 260px; border-radius: 10px; box-shadow: var(--shadow); }
.author__side { flex: 1 1 240px; }
.author__quote { margin: 0 0 16px; font-size: 16px; font-style: italic; font-weight: 700; text-align: justify; }
.author__sections { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }

.banners { margin: 26px 0 0; }
.banners__intro { margin: 0 0 18px; font-size: 18px; font-weight: 700; text-align: center; }
.banner { margin: 0 0 22px; text-align: center; }
.banner h2 { margin: 0 0 8px; font-size: 16px; }
.banner__code {
	margin: 10px 0 0;
	padding: 10px;
	border: 1px dotted #0f5c54;
	border-radius: 6px;
	background: #fafbf8;
	font: 13px/1.45 Menlo, Consolas, monospace;
	text-align: left;
	white-space: pre-wrap;
	word-break: break-all;
	-webkit-user-select: all;
	user-select: all;
}

/* Animal kingdom diagram: the original absolute layout on wide screens, a plain tree below. */

.ierarchy_list, .ierarchy_list ul { margin: 0; padding: 0; list-style: none; }
.ierarchy_list a { text-decoration: none; }
.ierarchy_list a:hover { text-decoration: underline; }
.ierarchy_list .species_list_top, .ierarchy_list .species_list_bottom { display: none; }

@media (min-width: 1000px) {
	.ierarchy_list { position: relative; width: 618px; height: 740px; margin: 0 auto; background: url(../images/bg_ierarchcy.png) no-repeat left top; }
	.ierarchy_list li { position: absolute; width: 105px; height: 66px; text-align: left; font-size: 13px; line-height: 16px; }
	.ierarchy_list li .in { position: relative; height: 57px; padding: 9px 16px 0; }
	.ierarchy_list li.level_animal_kingdom { top: 0; left: 217px; width: 182px; height: 38px; background: url(../images/bg_level_animal_kingdom.png) no-repeat left top; font-size: 14px; text-align: center; }
	.ierarchy_list li.level_animal_kingdom .in { padding: 9px 0 0; }
	.ierarchy_list li.level_under_kingdom { top: 54px; left: -58px; width: 298px; background: url(../images/bg_level_under_kingdom.png) no-repeat left top; text-align: center; }
	.ierarchy_list li.level_under_kingdom .in { padding: 9px 0 0; }
	.ierarchy_list li.level_type { background: url(../images/bg_level_type.png) no-repeat left top; }
	.ierarchy_list li.level_type .in { padding: 8px 16px 0; }
	.ierarchy_list li.level_subtype { background: url(../images/bg_level_subtype.png) no-repeat left top; }
	.ierarchy_list li.level_class { background: url(../images/bg_level_class.png) no-repeat left top; }
	.ierarchy_list li.level_detachment { background: url(../images/bg_level_detachment.png) no-repeat left top; }
	.ierarchy_list li.type_segmented_worms { top: 88px; left: -163px; }
	.ierarchy_list li.type_clams { top: 88px; left: -34px; }
	.ierarchy_list li.type_arthropoda { top: 88px; left: 162px; }
	.ierarchy_list li.type_chordates { top: -12px; left: 357px; }
	.ierarchy_list li.subtype_tracheal { top: 100px; left: -66px; }
	.ierarchy_list li.subtype_helitser { top: 100px; left: 66px; }
	.ierarchy_list li.subtype_helitser .in { padding: 9px 7px 0; }
	.ierarchy_list li.subtype_helitser ul .in { padding: 9px 16px 0; }
	.ierarchy_list li.subtype_vertebrates { top: 100px; left: 0; }
	.ierarchy_list li.subtype_vertebrates .in { padding: 9px 7px 0; }
	.ierarchy_list li.class_oligochaetes, .ierarchy_list li.class_gastropoda, .ierarchy_list li.class_insects,
	.ierarchy_list li.class_arachnids, .ierarchy_list li.class_birds { top: 100px; left: 0; }
	.ierarchy_list li.class_gastropoda .in { padding: 9px 12px 0; }
	.ierarchy_list li.class_birds .in { padding: 9px 30px 0; }
	.ierarchy_list li.class_reptiles { top: 300px; left: 0; }
	.ierarchy_list li.class_amphibia { top: 400px; left: 0; }
	.ierarchy_list li.class_amphibia ul .in { padding: 9px 16px 0; }
	.ierarchy_list li.class_mammalia { top: 500px; left: 0; }
	.ierarchy_list li.class_mammalia ul .in { padding: 9px 16px 0; }
	.ierarchy_list li.detachment_beetles { top: 0; left: -130px; }
	.ierarchy_list li.detachment_butterflies { top: 0; left: -262px; }
	.ierarchy_list li.detachment_bellydance { top: 100px; left: -130px; }
	.ierarchy_list li.detachment_dragonflies { top: 100px; left: -262px; }
	.ierarchy_list li.detachment_hymenoptera { top: 200px; left: -262px; }
	.ierarchy_list li.detachment_turtles { top: 0; left: -130px; }
	.ierarchy_list li.detachment_scale { top: 0; left: -262px; }
	.ierarchy_list li.detachment_tailed { top: 0; left: -130px; }
	.ierarchy_list li.detachment_frogs { top: 0; left: -262px; }
	.ierarchy_list li.detachment_artiodactyla { top: 0; left: -130px; }
	.ierarchy_list li.detachment_prey { top: 0; left: -262px; }
	.ierarchy_list li.detachment_prey .in { padding: 9px 22px 0 !important; }
	.ierarchy_list li.detachment_rodents { top: 0; left: -392px; }
	.ierarchy_list li.detachment_rodents .in { padding: 9px 22px 0 !important; }
	.ierarchy_list li.detachment_insectivores { top: -100px; left: -392px; }
	.ierarchy_list li.detachment_cheiroptera { top: 0; left: -524px; }
	.ierarchy_list li.detachment_cheiroptera .in { padding: 9px 10px 0 !important; }

	.ierarchy_list .species_list { position: absolute; z-index: 5; display: none; bottom: 54px; left: -28px; width: 174px; }
	.ierarchy_list .species_list_content { padding: 8px 6px 4px 14px; border-radius: 8px; background: #fff; box-shadow: 0 4px 16px rgba(0, 0, 0, .25); }
	.ierarchy_list .species_list_content li { position: relative; width: auto; height: auto; padding: 2px 0 6px; background: transparent; font-size: 11px; }
	.ierarchy_list .species_list a { text-decoration: underline; }
	.ierarchy_list .in:hover .species_list,
	.ierarchy_list .in:focus-within .species_list { display: block; }
}

@media (max-width: 999px) {
	.ierarchy_list { overflow-wrap: anywhere; }
}

@media (max-width: 400px) {
	.ierarchy_list ul { padding-left: 10px; margin-left: 4px; }
	.ierarchy_list ul { padding-left: 16px; border-left: 2px solid #cfe3bf; margin-left: 8px; }
	.ierarchy_list li { margin: 6px 0; }
	.ierarchy_list .in { display: block; padding: 6px 10px; border-radius: 6px; background: #f4f7f0; }
	.ierarchy_list .species_list { margin: 6px 0 0; }
	.ierarchy_list .species_list_content { padding-left: 18px; list-style: disc; }
	.ierarchy_list .species_list_content li { margin: 2px 0; background: none; }
}

/* Footer --------------------------------------------------------------------------------- */

.site-footer { position: relative; margin-top: auto; color: #fff; font-size: 13px; line-height: 1.5; text-align: center; }
.site-footer__img { display: block; width: 100%; height: auto; aspect-ratio: 1000 / 198; min-height: 110px; object-fit: cover; object-position: 50% 100%; }
.site-footer__text { position: absolute; right: 0; bottom: 14px; left: 0; margin: 0; padding: 0 16px; text-shadow: 0 1px 3px rgba(0, 0, 0, .8); }
.site-footer a { color: #fff; }

/* Narrow screens ------------------------------------------------------------------------- */

@media (max-width: 899px) {
	.layout { grid-template-columns: minmax(0, 1fr); gap: 14px; padding: 12px 12px 24px; }
	.panel { padding: 18px 16px 24px; border-radius: 10px; }

	.nav-toggle {
		display: flex;
		align-items: center;
		justify-content: center;
		gap: 10px;
		width: 100%;
		padding: 12px 16px;
		border: 0;
		border-bottom: 1px solid #c4c6c0;
		background: var(--button);
		color: #1b232a;
		font: inherit;
		font-weight: 700;
		cursor: pointer;
	}
	.nav-toggle[aria-expanded="true"] { background: var(--button-active); }
	.nav-toggle__bars, .nav-toggle__bars::before, .nav-toggle__bars::after {
		display: block;
		width: 20px;
		height: 2px;
		border-radius: 1px;
		background: currentColor;
	}
	.nav-toggle__bars { position: relative; }
	.nav-toggle__bars::before, .nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
	.nav-toggle__bars::before { top: -6px; }
	.nav-toggle__bars::after { top: 6px; }

	.sidebar::before, .slogan { display: none; }
	.js .sidebar { display: none; }
	.js .sidebar.is-open { display: block; }
	.menu__link { padding: 10px 14px; }
	.menu__link--parent::after { margin-top: -6px; transform: rotate(45deg); }
	.menu__item.is-open > .menu__link--parent::after { margin-top: -2px; transform: rotate(-135deg); }
	.submenu { position: static; width: auto; padding: 6px 0 4px; }
	.submenu__list { box-shadow: none; border: 1px solid var(--line); font-size: 14px; }
	.submenu__list a { display: inline-block; padding: 4px 0; }
	html:not(.js) .submenu { display: block; }

	.tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin-bottom: 18px; }
	.tiles a { padding: 6px; }
}

@media (max-width: 640px) {
	/* Justified text from stored articles leaves huge gaps in a narrow column. */
	.prose [style*="justify"], .prose [align="justify"] { text-align: left !important; }
	.epigraph { font-size: 18px; }
	.thumbs { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 12px; }
	.photo__title { font-size: 21px; }
	.photo__nav .btn { min-width: 64px; padding: 8px 14px; font-size: 20px; }
	.photo__nav .btn__text { display: none; }
	.media-list li { align-items: flex-start; gap: 14px; }
	.media-list img { width: 110px; }
	.site-footer__text { position: static; padding: 10px 16px 14px; background: #2f4a2c; text-shadow: none; }
}

@media print {
	body { background: #fff; }
	.page { max-width: none; margin: 0; border-radius: 0; box-shadow: none; background: #fff; }
	.nav-toggle, .sidebar, .skip-link, .photo__nav, .pager, .site-footer picture { display: none !important; }
	.layout { display: block; padding: 0; }
	.panel, .tiles a, .photo__zoom { box-shadow: none; }
	.site-footer { color: #000; }
	.site-footer__text { position: static; text-shadow: none; }
	.site-footer a { color: #000; }
}