/* =============================================================
   Saltwater Aquarium Guide — Magazine: shell
   Tokens, fonts, header, footer, buttons. Loaded on every page,
   including the parent theme's dark tool pages, so every rule
   here is scoped to .mg-* and sets its own colours.
   ============================================================= */

@font-face {
	font-family: "Inter";
	font-style: normal;
	font-weight: 400 700;
	font-display: swap;
	src: url("../fonts/inter-latin.woff2") format("woff2");
	unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
	font-family: "Source Serif 4";
	font-style: normal;
	font-weight: 600;
	font-display: swap;
	src: url("../fonts/source-serif-4-600-latin.woff2") format("woff2");
	unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
	--mg-navy: #092B40;
	--mg-marine: #10445C;
	--mg-teal: #087F8C;
	--mg-teal-ink: #066A75;      /* teal for text and links on light backgrounds (5.9:1 on white) */
	--mg-aqua: #46C6C5;
	--mg-bg: #F7FAFA;
	--mg-white: #FFFFFF;
	--mg-ink: #253746;
	--mg-muted: #586C7A;         /* #637786 nudged darker so small text passes AA on the off-white */
	--mg-line: #DCE7EA;
	--mg-amber: #F2A93B;         /* Amazon links only */
	--mg-amber-ink: #231600;
	--mg-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	--mg-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
	--mg-wrap: 1200px;
	--mg-radius: 12px;
	--mg-shadow: 0 1px 2px rgba(9, 43, 64, .06), 0 8px 24px -12px rgba(9, 43, 64, .18);
}

/* ---------- Tool pages: keep the parent stylesheet, align it with the palette ---------- */
body.swm-tool-view {
	--ocean-deep: #092B40;
	--ocean-mid: #10445C;
	--marine-green: #087F8C;
	--bg: #092B40;
	--bg-2: #10445C;
	--font-display: "Source Serif 4", Georgia, serif;
	background: #092B40;
	padding-bottom: 0;
}

/* ---------- Utilities used by the shell ---------- */
.mg-skip {
	position: absolute; left: 12px; top: -60px; z-index: 1000;
	background: var(--mg-white); color: var(--mg-navy);
	padding: 10px 16px; border-radius: 8px; font: 600 15px/1.2 var(--mg-sans);
	text-decoration: none; box-shadow: var(--mg-shadow);
}
.mg-skip:focus { top: 12px; color: var(--mg-navy); }

.mg-header .screen-reader-text,
.mg-footer .screen-reader-text,
.mg-btn .screen-reader-text {
	position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
	overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.mg-icon { flex: none; }

/* ---------- Buttons ---------- */
.mg-btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 8px;
	min-height: 44px; padding: 10px 20px; border-radius: 999px;
	border: 1.5px solid transparent;
	font: 600 15px/1.2 var(--mg-sans); letter-spacing: 0;
	text-decoration: none; cursor: pointer;
	transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.mg-btn--lg { min-height: 52px; padding: 14px 26px; font-size: 16px; }
.mg-btn--sm { min-height: 40px; padding: 8px 16px; font-size: 14px; }
.mg-btn--primary { background: var(--mg-teal); color: var(--mg-white); }
.mg-btn--primary:hover, .mg-btn--primary:focus-visible { background: var(--mg-teal-ink); color: var(--mg-white); }
.mg-btn--light { background: rgba(255, 255, 255, .96); color: var(--mg-navy); }
.mg-btn--light:hover, .mg-btn--light:focus-visible { background: var(--mg-white); color: var(--mg-teal-ink); }
.mg-btn--outline { background: transparent; color: var(--mg-teal-ink); border-color: var(--mg-teal); }
.mg-btn--outline:hover, .mg-btn--outline:focus-visible { background: var(--mg-teal); color: var(--mg-white); }
.mg-btn--amazon { background: var(--mg-amber); color: var(--mg-amber-ink); }
.mg-btn--amazon:hover, .mg-btn--amazon:focus-visible { background: #E79A22; color: var(--mg-amber-ink); }

.mg-header :focus-visible,
.mg-footer :focus-visible,
.mg-btn:focus-visible {
	outline: 3px solid var(--mg-aqua);
	outline-offset: 2px;
}

/* ---------- Header ---------- */
.mg-header {
	position: relative; z-index: 100;
	background: var(--mg-navy); color: var(--mg-white);
	font-family: var(--mg-sans);
}
.mg-header__bar {
	max-width: var(--mg-wrap); margin: 0 auto; padding: 10px 20px;
	display: flex; align-items: center; gap: 12px;
}
.mg-brand {
	display: inline-flex; align-items: center; gap: 10px;
	color: var(--mg-white); text-decoration: none; margin-right: auto; min-width: 0;
}
.mg-brand:hover { color: var(--mg-white); }
.mg-brand__mark { flex: none; display: block; }
.mg-brand__logo { display: block; width: auto; max-height: 44px; }
.mg-brand__text { display: flex; flex-direction: column; min-width: 0; }
.mg-brand__name {
	font: 600 19px/1.15 var(--mg-serif); color: var(--mg-white);
	white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.mg-brand__tag {
	font: 500 11px/1.3 var(--mg-sans); letter-spacing: .08em; text-transform: uppercase;
	color: #A9C7D3;
}

.mg-header__actions { display: flex; align-items: center; gap: 6px; }
@media (max-width: 480px) {
	.mg-brand__name { font-size: 16.5px; white-space: normal; overflow: visible; }
	.mg-brand__tag { display: none; }
	.mg-brand__mark { width: 30px; height: 30px; }
}
.mg-iconbtn {
	width: 44px; height: 44px; display: inline-grid; place-items: center;
	border: 1px solid rgba(255, 255, 255, .22); border-radius: 10px;
	background: transparent; color: var(--mg-white); cursor: pointer; padding: 0;
}
.mg-iconbtn:hover { background: rgba(255, 255, 255, .1); }
.mg-menu-toggle__close { display: none; }
.mg-menu-toggle[aria-expanded="true"] .mg-menu-toggle__open { display: none; }
.mg-menu-toggle[aria-expanded="true"] .mg-menu-toggle__close { display: block; }

/* Navigation — mobile first: a panel under the bar */
.mg-nav {
	display: none; position: absolute; left: 0; right: 0; top: 100%;
	background: var(--mg-navy); border-top: 1px solid rgba(255, 255, 255, .14);
	box-shadow: 0 18px 30px -12px rgba(0, 0, 0, .45);
	max-height: calc(100vh - 64px); overflow-y: auto;
}
.mg-nav.is-open { display: block; }
.mg-menu, .mg-menu .sub-menu { list-style: none; margin: 0; padding: 0; }
.mg-menu { padding: 6px 20px 18px; }
.mg-menu > li { position: relative; display: flex; flex-wrap: wrap; align-items: center; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.mg-menu > li > a {
	flex: 1; padding: 14px 0; color: var(--mg-white); text-decoration: none;
	font: 600 16px/1.3 var(--mg-sans);
}
.mg-menu a:hover { color: var(--mg-aqua); }
.mg-menu .mg-menu__accent > a, .mg-menu .mg-menu__accent > a:hover { color: var(--mg-aqua); }
.mg-sub-toggle {
	width: 44px; height: 44px; display: inline-grid; place-items: center;
	background: transparent; border: 0; color: var(--mg-white); cursor: pointer; padding: 0; border-radius: 8px;
}
.mg-sub-toggle svg { transition: transform .15s ease; }
.mg-sub-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
.mg-menu .sub-menu { display: none; flex-basis: 100%; padding: 0 0 10px 12px; }
.mg-menu li.is-open > .sub-menu { display: block; }
.mg-menu .sub-menu a {
	display: block; padding: 10px 0; color: #D5E6EC; text-decoration: none;
	font: 500 15px/1.3 var(--mg-sans);
}

/* Search panel */
.mg-search { background: var(--mg-marine); border-top: 1px solid rgba(255, 255, 255, .14); }
.mg-search[hidden] { display: none; }
.mg-search__form {
	max-width: var(--mg-wrap); margin: 0 auto; padding: 14px 20px;
	display: flex; gap: 8px;
}
.mg-search__form input[type="search"] {
	flex: 1; min-width: 0; min-height: 44px; padding: 10px 16px;
	border: 1.5px solid transparent; border-radius: 999px;
	background: var(--mg-white); color: var(--mg-ink);
	font: 400 16px/1.3 var(--mg-sans);
}
.mg-search__form input[type="search"]:focus-visible { outline: 3px solid var(--mg-aqua); outline-offset: 2px; }

@media (min-width: 1100px) {
	.mg-header__bar { flex-wrap: wrap; padding: 14px 20px 0; row-gap: 10px; }
	.mg-brand__name { font-size: 22px; }
	.mg-menu-toggle { display: none; }
	.mg-header__actions { order: 2; }
	.mg-nav {
		display: block; position: static; order: 3; flex-basis: 100%;
		background: transparent; border-top: 1px solid rgba(255, 255, 255, .14);
		box-shadow: none; max-height: none; overflow: visible;
	}
	.mg-menu { display: flex; align-items: stretch; gap: 2px; padding: 0; margin: 0 -12px; }
	.mg-menu > li { border-bottom: 0; flex-wrap: nowrap; }
	.mg-menu > li > a { flex: none; padding: 13px 12px; font-size: 14.5px; white-space: nowrap; }
	.mg-menu > li.menu-item-has-children > a { padding-right: 2px; }
	.mg-sub-toggle { width: 26px; height: 44px; margin-right: 4px; }
	.mg-menu .sub-menu {
		position: absolute; left: 0; top: 100%; z-index: 20; min-width: 250px;
		padding: 8px; background: var(--mg-white); border-radius: 0 0 var(--mg-radius) var(--mg-radius);
		box-shadow: 0 16px 32px -12px rgba(9, 43, 64, .4); border: 1px solid var(--mg-line); border-top: 3px solid var(--mg-teal);
	}
	.mg-menu li:hover > .sub-menu,
	.mg-menu li:focus-within > .sub-menu { display: block; }
	.mg-menu .sub-menu a { padding: 10px 12px; border-radius: 8px; color: var(--mg-ink); font-size: 14.5px; }
	.mg-menu .sub-menu a:hover, .mg-menu .sub-menu a:focus-visible { background: var(--mg-bg); color: var(--mg-teal-ink); }
	.mg-menu > li > a:hover, .mg-menu > li:focus-within > a { color: var(--mg-aqua); }
	.mg-menu > li > a[aria-current="page"], .mg-menu > .current-menu-item > a { box-shadow: inset 0 -3px 0 var(--mg-aqua); }
}

/* ---------- Footer ---------- */
.mg-footer {
	background: var(--mg-navy); color: #C9DCE4;
	font: 400 15px/1.6 var(--mg-sans);
	margin-top: 0;
}
.mg-footer__inner { max-width: var(--mg-wrap); margin: 0 auto; padding: 56px 20px 28px; }
.mg-footer__grid { display: grid; gap: 36px; grid-template-columns: 1fr; }
.mg-footer p { margin: 0 0 12px; }
.mg-footer__brand { font: 600 20px/1.2 var(--mg-serif); color: var(--mg-white); }
.mg-footer__aff { font-size: 14px; color: #A9C7D3; }
.mg-footer__title {
	margin: 0 0 14px; font: 600 13px/1.3 var(--mg-sans); letter-spacing: .08em; text-transform: uppercase; color: var(--mg-white);
}
.mg-footer ul { list-style: none; margin: 0; padding: 0; }
.mg-footer li { margin: 0; }
.mg-footer a { color: #C9DCE4; text-decoration: none; }
.mg-footer__col a { display: inline-block; padding: 6px 0; }
.mg-footer a:hover { color: var(--mg-white); text-decoration: underline; }
.mg-footer__newsletter {
	margin-top: 40px; padding: 24px; border: 1px solid rgba(255, 255, 255, .16); border-radius: var(--mg-radius);
	display: grid; gap: 14px;
}
.mg-footer__bottom {
	margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .16);
	display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between;
	font-size: 14px; color: #A9C7D3;
}
.mg-footer__bottom p { margin: 0; }
.mg-footer__bottom a { text-decoration: underline; }
@media (min-width: 640px) { .mg-footer__grid { grid-template-columns: 1fr 1fr; } .mg-footer__about { grid-column: 1 / -1; max-width: 520px; } }
@media (min-width: 960px) { .mg-footer__grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; } .mg-footer__about { grid-column: auto; } }

/* Newsletter form (only printed when a provider is connected) */
.mg-nlform { display: flex; flex-wrap: wrap; gap: 8px; }
.mg-nlform input[type="email"] {
	flex: 1 1 220px; min-height: 44px; padding: 10px 16px; border-radius: 999px;
	border: 1.5px solid var(--mg-line); background: var(--mg-white); color: var(--mg-ink); font: 400 16px/1.3 var(--mg-sans);
}
.mg-hp { position: absolute; left: -9999px; }
.mg-nlform .nl-status { flex-basis: 100%; margin: 0; font-size: 14px; }

@media (prefers-reduced-motion: reduce) {
	.mg-btn, .mg-sub-toggle svg { transition: none; }
}