/* Moiboo Academy · Support home */
:root {
	--brand: #00AFEB;
	--brand-dark: #0090C2;
	--brand-tint: #E8F8FE;
	--brand-tint-2: #F4FBFE;
	--brand-soft: #CDEFFB;
	--ink: #0B1B2B;
	--ink-2: #3D4B5C;
	--muted: #6B7785;
	--line: #E3E8EE;
	--white: #FFFFFF;
	--radius: 14px;
	--shadow: 0 6px 24px rgba(11, 27, 43, .07);
	--shadow-lg: 0 18px 40px rgba(0, 144, 194, .16);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body {
	font-family: "Urbanist", system-ui, sans-serif;
	color: var(--ink);
	background: linear-gradient(180deg, var(--brand-tint-2) 0%, #F7FCFF 55%, var(--white) 100%);
	font-size: 16px;
	line-height: 1.55;
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
.wrap { max-width: 1000px; margin: 0 auto; padding: 0 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--ink); color: var(--white); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }
.muted { color: var(--muted); }
.link { color: var(--brand); font-weight: 700; }
.link:hover { text-decoration: underline; }
:focus-visible { outline: 3px solid rgba(0, 175, 235, .45); outline-offset: 2px; }

/* ---------- Buttons ---------- */
.btn {
	display: inline-flex; align-items: center; gap: 8px;
	background: var(--brand); color: var(--white);
	font-weight: 700; font-size: 16px; white-space: nowrap;
	padding: 12px 26px; border-radius: 12px; border: 0;
	transition: background .2s, box-shadow .2s, transform .2s;
}
.btn:hover { background: var(--brand-dark); box-shadow: 0 8px 20px rgba(0, 175, 235, .32); transform: translateY(-1px); }
.btn .icon-arrow { transition: transform .2s; }
.btn:hover .icon-arrow { transform: translateX(3px); }
.btn-pill { border-radius: 999px; padding: 10px 18px; font-size: 14px; }

/* ---------- Top bar ---------- */
.topbar { position: sticky; top: 14px; z-index: 50; padding: 0 16px; margin-top: 14px; }
.topbar-in {
	max-width: 860px; margin: 0 auto;
	display: flex; align-items: center; gap: 16px;
	background: rgba(255, 255, 255, .92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
	border: 1px solid var(--line); border-radius: 999px;
	padding: 8px 8px 8px 18px; box-shadow: var(--shadow);
}
.logo { display: flex; align-items: center; gap: 12px; flex: none; }
.logo { gap: 10px; }
.logo img { width: 44px; height: auto; }
.logo-text { font-size: 21px; font-weight: 800; letter-spacing: -.01em; line-height: 1; color: var(--ink); white-space: nowrap; }
.logo-text b { color: var(--brand); font-weight: 800; }
.main-nav { margin-left: auto; display: flex; align-items: center; gap: 26px; font-size: 14px; font-weight: 600; color: var(--ink-2); }
.main-nav > a:not(.btn) { position: relative; padding: 6px 0; display: inline-flex; align-items: center; gap: 4px; }
.main-nav > a:not(.btn):hover, .main-nav > a.active { color: var(--brand); }
.main-nav > a.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; border-radius: 2px; background: var(--brand); }
.nav-ext { color: var(--muted); }
.menu-btn { display: none; margin-left: auto; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: var(--white); flex-direction: column; align-items: center; justify-content: center; gap: 4px; }
.menu-btn span { width: 18px; height: 2px; border-radius: 2px; background: var(--ink); transition: transform .2s, opacity .2s; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; margin-top: -84px; padding: 150px 24px 110px; overflow: hidden; }
.hero::before, .hero::after {
	content: ""; position: absolute; top: 40px; width: 460px; height: 380px; border-radius: 50%;
	background: radial-gradient(closest-side, rgba(0, 175, 235, .26), rgba(0, 175, 235, 0));
	filter: blur(6px); pointer-events: none;
}
.hero::before { left: -140px; }
.hero::after { right: -140px; }
.hero-grid {
	position: absolute; inset: 0; pointer-events: none;
	background-image: linear-gradient(rgba(0, 175, 235, .12) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 175, 235, .12) 1px, transparent 1px);
	background-size: 44px 44px;
	-webkit-mask-image: radial-gradient(ellipse 30% 70% at 0% 30%, #000 0%, transparent 100%), radial-gradient(ellipse 30% 70% at 100% 30%, #000 0%, transparent 100%);
	mask-image: radial-gradient(ellipse 30% 70% at 0% 30%, #000 0%, transparent 100%), radial-gradient(ellipse 30% 70% at 100% 30%, #000 0%, transparent 100%);
}
.hero-copy { position: relative; z-index: 2; max-width: 560px; margin: 0 auto; text-align: center; }
.eyebrow { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .32em; text-transform: uppercase; color: var(--brand); }
.hero h1 { font-size: clamp(40px, 6.4vw, 62px); font-weight: 800; line-height: 1.04; letter-spacing: -.03em; margin: 18px 0 18px; }
.hero h1 span { color: var(--brand); }
.lead { font-size: 18px; color: var(--ink-2); }
.hero-art { position: absolute; bottom: 0; z-index: 1; width: clamp(240px, 26vw, 340px); height: auto; pointer-events: none; }
.hero-art-left { left: max(-20px, calc(50% - 640px)); }
.hero-art-right { right: max(-20px, calc(50% - 640px)); }
.hero::selection { background: var(--brand-soft); }

.hero-search { position: relative; margin: 30px auto 0; max-width: 460px; }
.hero-search input {
	width: 100%; font: inherit; font-size: 15px; color: var(--ink);
	padding: 15px 60px 15px 26px; border-radius: 999px;
	border: 1px solid var(--line); background: var(--white);
	box-shadow: 0 8px 24px rgba(11, 27, 43, .06); outline: 0;
	transition: border-color .2s, box-shadow .2s;
	-webkit-appearance: none; appearance: none;
}
.hero-search input::placeholder { color: #8A95A3; }
.hero-search input:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(0, 175, 235, .14), 0 8px 24px rgba(11, 27, 43, .06); }
.hero-search input::-webkit-search-cancel-button { display: none; }
.hero-search button { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); width: 42px; height: 42px; border-radius: 50%; border: 0; background: transparent; color: var(--ink-2); display: grid; place-items: center; transition: background .2s, color .2s; }
.hero-search button:hover { background: var(--brand); color: var(--white); }

.suggest {
	position: absolute; left: 0; right: 0; top: calc(100% + 8px); z-index: 30; text-align: left;
	background: var(--white); border: 1px solid var(--line); border-radius: 16px;
	box-shadow: 0 18px 48px rgba(11, 27, 43, .14); padding: 8px; max-height: 360px; overflow-y: auto;
}
.suggest a { display: block; padding: 10px 12px; border-radius: 10px; }
.suggest a:hover, .suggest a.on { background: var(--brand-tint); }
.suggest b { display: block; font-size: 15px; font-weight: 700; line-height: 1.3; }
.suggest small { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }
.suggest mark { background: transparent; color: var(--brand-dark); }
.suggest .s-soon { display: inline-block; margin-left: 6px; font-size: 11px; font-weight: 700; color: #5B6878; background: #EEF2F6; padding: 1px 7px; border-radius: 999px; vertical-align: 1px; }
.suggest .s-empty { padding: 12px; font-size: 14px; color: var(--muted); }
.suggest .s-all { display: block; text-align: center; font-size: 14px; font-weight: 700; color: var(--brand); border-top: 1px solid var(--line); margin-top: 6px; padding-top: 10px; border-radius: 0; }

.popular { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 16px; font-size: 13px; color: var(--muted); align-items: center; }
.popular a { padding: 4px 12px; border-radius: 999px; background: rgba(255, 255, 255, .8); border: 1px solid var(--line); font-weight: 600; color: var(--ink-2); transition: border-color .2s, color .2s; }
.popular a:hover { border-color: var(--brand); color: var(--brand); }

/* ---------- Search results ---------- */
.results { padding-top: 34px; }
.results-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.results-head h2 { font-size: 24px; font-weight: 800; }
.result-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.result { display: block; background: var(--white); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; transition: border-color .2s, box-shadow .2s; }
.result:hover { border-color: var(--brand); box-shadow: var(--shadow); }
.result .r-tag { display: block; font-size: 12px; font-weight: 700; color: var(--brand); letter-spacing: .04em; }
.result b { display: block; font-size: 16px; margin: 4px 0; }
.result em { font-style: normal; color: var(--muted); font-weight: 700; }
.result .r-desc { display: block; font-size: 14px; color: var(--ink-2); }
.result .r-soon { display: inline-block; margin-top: 8px; font-size: 12px; font-weight: 700; color: #5B6878; background: #EEF2F6; padding: 2px 9px; border-radius: 999px; }
.result.is-soon b { color: var(--ink-2); }

/* ---------- Modules ---------- */
.modules { padding-top: 46px; }
.sec-head { text-align: center; margin-bottom: 28px; }
.sec-head h2, .faq h2 { font-size: 32px; font-weight: 800; letter-spacing: -.02em; line-height: 1.15; }
.sec-head p { color: var(--ink-2); margin-top: 6px; }
.module-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.module-card {
	position: relative; flex: 0 1 calc((100% - 32px) / 3); min-width: 240px;
	display: flex; flex-direction: column; align-items: center; text-align: center;
	background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
	padding: 22px 26px 26px; box-shadow: 0 2px 10px rgba(11, 27, 43, .03);
	transition: transform .25s, box-shadow .25s, border-color .25s;
}
a.module-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--brand-soft); }
.m-icon {
	width: 88px; height: 88px; margin-bottom: 14px; object-fit: contain;
	filter: drop-shadow(0 10px 16px rgba(0, 175, 235, .26));
	transition: transform .3s;
}
a.module-card:hover .m-icon { transform: scale(1.07) rotate(-3deg); }
.module-card h3 { font-size: 22px; font-weight: 700; letter-spacing: -.01em; }
.module-card p { font-size: 15px; color: var(--ink-2); margin-top: 6px; max-width: 220px; }
.m-meta { font-size: 12px; font-weight: 700; color: var(--muted); margin-top: 10px; letter-spacing: .02em; }
.m-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 10px; color: var(--brand); font-weight: 700; font-size: 16px; }
.m-link .icon-arrow { transition: transform .2s; }
a.module-card:hover .m-link .icon-arrow { transform: translateX(4px); }
.m-soon { margin-top: 14px; font-size: 12px; font-weight: 700; color: #5B6878; background: #EEF2F6; padding: 3px 12px; border-radius: 999px; }
.module-card.is-soon .m-icon { filter: drop-shadow(0 8px 12px rgba(0, 175, 235, .16)); }

/* ---------- FAQ ---------- */
.faq { padding-top: 56px; }
.faq h2 { margin-bottom: 24px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; align-items: start; }
.faq-item { background: var(--white); border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 2px 10px rgba(11, 27, 43, .03); transition: border-color .2s, box-shadow .2s; }
.faq-item[open], .faq-item:hover { border-color: var(--brand-soft); box-shadow: var(--shadow); }
.faq-item summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 15px 22px; font-weight: 700; font-size: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .icon { flex: none; transition: transform .25s; }
.faq-item[open] summary .icon { transform: rotate(90deg); color: var(--brand); }
.faq-a { padding: 0 22px 18px; color: var(--ink-2); font-size: 15px; }
.faq-a p + p { margin-top: 8px; }
.faq-a a { color: var(--brand); font-weight: 700; }

/* ---------- Help banner ---------- */
#help { padding-top: 34px; padding-bottom: 20px; max-width: 1048px; }
.help {
	position: relative; overflow: hidden;
	display: grid; grid-template-columns: 1fr minmax(0, 400px); align-items: end; gap: 20px;
	background: linear-gradient(100deg, var(--brand-tint) 0%, #DDF4FD 100%);
	border-radius: 18px; padding: 26px 30px 0 54px; min-height: 168px;
}
.help-copy { padding-bottom: 22px; align-self: center; }
.help h2 { font-size: 32px; font-weight: 800; letter-spacing: -.02em; line-height: 1.15; }
.help p { color: var(--ink-2); margin: 6px 0 16px; }
.help-ways { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 14px; font-size: 14px; font-weight: 600; color: var(--ink-2); }
.help-ways a { display: inline-flex; align-items: center; gap: 6px; }
.help-ways a:hover { color: var(--brand-dark); }
.help-ways .icon { color: var(--brand); }
.help-art { width: 100%; max-width: 300px; height: auto; justify-self: end; margin-right: 30px; }

/* ---------- Footer ---------- */
.site-footer { margin-top: 18px; border-top: 1px solid var(--line); background: var(--white); }
.footer-in { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 18px; padding-bottom: 18px; font-size: 12px; color: var(--muted); max-width: 1048px; }
.footer-in a:hover { color: var(--brand); }

/* ---------- Scroll reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
	.hero-art { width: 230px; }
	.hero-art-left { left: -40px; }
	.hero-art-right { right: -40px; }
}
@media (max-width: 960px) {
	.hero { padding-bottom: 250px; }
	.hero-art { width: 250px; }
	.hero-art-left { left: calc(50% - 250px); }
	.hero-art-right { right: calc(50% - 250px); }
	.module-card { flex-basis: calc((100% - 16px) / 2); }
}
@media (max-width: 780px) {
	.topbar-in { padding: 8px 8px 8px 22px; flex-wrap: wrap; border-radius: 26px; }
	.menu-btn { display: flex; }
	.main-nav { display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 2px; padding: 6px 6px 8px; }
	.main-nav.open { display: flex; }
	.main-nav > a:not(.btn) { padding: 12px 10px; border-radius: 10px; }
	.main-nav > a:not(.btn):hover { background: var(--brand-tint); }
	.main-nav > a.active::after { display: none; }
	.main-nav .btn { justify-content: center; margin-top: 6px; padding: 12px 18px; }
	.faq-grid, .result-list { grid-template-columns: 1fr; }
	.help { grid-template-columns: 1fr; padding: 28px 24px 0; text-align: left; }
	.help-art { max-width: 360px; justify-self: end; }
}
@media (max-width: 560px) {
	.wrap { padding: 0 16px; }
	.topbar { padding: 0 12px; }
	.logo img { width: 38px; }
	.logo-text { font-size: 19px; }
	.hero { padding: 132px 16px 200px; }
	.hero-art { width: 190px; }
	.hero-art-left { left: calc(50% - 186px); }
	.hero-art-right { right: calc(50% - 186px); }
	.lead { font-size: 16px; }
	.module-card { flex-basis: 100%; }
	.sec-head h2, .faq h2, .help h2 { font-size: 26px; }
	.faq-item summary { padding: 14px 16px; }
	.faq-a { padding: 0 16px 16px; }
}
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after { animation: none !important; transition: none !important; }
	.js .reveal { opacity: 1; transform: none; }
}