/* ==========================================================
   HTML Online Compiler — Premium Theme
   ========================================================== */

:root {
	--hoc-primary: #0d6efd;
	--hoc-primary-600: #0b5ed7;
	--hoc-secondary: #6f42c1;
	--hoc-success: #198754;
	--hoc-warning: #ffc107;
	--hoc-danger:  #dc3545;
	--hoc-dark:    #1e1e1e;
	--hoc-bg:      #f8f9fa;
	--hoc-surface: #ffffff;
	--hoc-fg:      #0f172a;
	--hoc-muted:   #64748b;
	--hoc-border:  #e5e7eb;
	--hoc-radius:  14px;
	--hoc-radius-lg: 20px;
	--hoc-shadow-sm: 0 1px 2px rgba(15,23,42,.06);
	--hoc-shadow:    0 8px 24px -12px rgba(15,23,42,.14), 0 2px 6px -2px rgba(15,23,42,.06);
	--hoc-shadow-lg: 0 24px 60px -24px rgba(13,110,253,.35);
	--hoc-gradient:  linear-gradient(135deg, #0d6efd 0%, #6f42c1 100%);
	--hoc-gradient-soft: linear-gradient(135deg, rgba(13,110,253,.08), rgba(111,66,193,.08));
	--font-sans: 'Inter','Poppins','Roboto', system-ui, -apple-system, 'Segoe UI', sans-serif;
	--font-display: 'Poppins','Inter', system-ui, sans-serif;
	--font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	--container: 1200px;
}

body.dark {
	--hoc-bg: #0b1220;
	--hoc-surface: #101a2f;
	--hoc-fg: #e6edf7;
	--hoc-muted: #94a3b8;
	--hoc-border: #1f2a44;
	--hoc-shadow: 0 8px 24px -12px rgba(0,0,0,.5);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
	margin: 0;
	font-family: var(--font-sans);
	background: var(--hoc-bg);
	color: var(--hoc-fg);
	-webkit-font-smoothing: antialiased;
	line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--hoc-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1,h2,h3,h4 { font-family: var(--font-display); line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
.muted { color: var(--hoc-muted); }
.small { font-size: .85rem; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }

.screen-reader-text { position: absolute !important; clip: rect(1px,1px,1px,1px); width:1px; height:1px; overflow:hidden; }
.skip-link { position: absolute; left: -9999px; top: 8px; background: var(--hoc-primary); color: #fff; padding: 8px 12px; border-radius: 8px; z-index:9999; }
.skip-link:focus { left: 8px; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 999px; font-weight: 600; font-size: .95rem; border: 1px solid transparent; background: var(--hoc-surface); color: var(--hoc-fg); cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease; text-decoration: none; }
.btn:hover { transform: translateY(-1px); box-shadow: var(--hoc-shadow); text-decoration:none; }
.btn-primary { background: var(--hoc-gradient); color: #fff; box-shadow: 0 8px 24px -10px rgba(13,110,253,.55); }
.btn-primary:hover { box-shadow: var(--hoc-shadow-lg); }
.btn-outline { background: transparent; border-color: var(--hoc-border); color: var(--hoc-fg); }
.btn-outline:hover { border-color: var(--hoc-primary); color: var(--hoc-primary); }
.btn-sm { padding: 7px 12px; font-size: .85rem; }
.btn-lg { padding: 14px 26px; font-size: 1rem; }

.icon-btn { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; border: 1px solid var(--hoc-border); background: var(--hoc-surface); color: var(--hoc-fg); cursor: pointer; transition: all .2s ease; }
.icon-btn:hover { border-color: var(--hoc-primary); color: var(--hoc-primary); }

/* ---------- Cards ---------- */
.card { background: var(--hoc-surface); border: 1px solid var(--hoc-border); border-radius: var(--hoc-radius); box-shadow: var(--hoc-shadow-sm); }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 100; background: color-mix(in oklab, var(--hoc-surface) 85%, transparent); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid var(--hoc-border); }
.header-inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 24px; padding: 12px 20px; }
.site-logo-text { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 800; color: var(--hoc-fg); text-decoration: none; font-size: 1.05rem; }
.logo-mark { display: inline-flex; width: 34px; height: 34px; border-radius: 10px; background: var(--hoc-gradient); color: #fff; align-items: center; justify-content: center; font-family: var(--font-mono); font-weight: 700; font-size: .9rem; box-shadow: 0 6px 18px -6px rgba(13,110,253,.5); }
.main-navigation ul { list-style: none; padding: 0; margin: 0; display: flex; gap: 6px; justify-content: center; }
.main-navigation a { display: inline-block; padding: 8px 14px; border-radius: 10px; color: var(--hoc-fg); font-weight: 500; text-decoration: none; }
.main-navigation a:hover, .main-navigation .current-menu-item > a { background: var(--hoc-gradient-soft); color: var(--hoc-primary); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.menu-toggle { display: none; flex-direction: column; gap: 4px; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--hoc-border); background: var(--hoc-surface); align-items: center; justify-content: center; cursor: pointer; }
.menu-toggle .bar { width: 18px; height: 2px; background: var(--hoc-fg); border-radius: 2px; }
.header-search { border-top: 1px solid var(--hoc-border); padding: 12px 0; background: var(--hoc-surface); }
.search-form { display: flex; gap: 8px; }
.search-form .search-field { flex: 1; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--hoc-border); background: var(--hoc-bg); color: var(--hoc-fg); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 80px 0 60px; background: radial-gradient(1200px 480px at 80% -10%, rgba(111,66,193,.15), transparent 60%), radial-gradient(900px 400px at 0% 20%, rgba(13,110,253,.14), transparent 60%); overflow: hidden; }
.hero-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: .8rem; font-weight: 600; padding: 6px 12px; border-radius: 999px; background: var(--hoc-gradient-soft); color: var(--hoc-primary); border: 1px solid color-mix(in oklab, var(--hoc-primary) 20%, transparent); text-transform: uppercase; letter-spacing: .08em; }
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--hoc-success); box-shadow: 0 0 0 4px color-mix(in oklab, var(--hoc-success) 20%, transparent); }
.hero-title { font-size: clamp(2.2rem, 4.5vw, 3.6rem); font-weight: 800; margin: 18px 0 12px; background: linear-gradient(135deg, var(--hoc-fg), color-mix(in oklab, var(--hoc-fg) 65%, var(--hoc-primary))); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-desc { color: var(--hoc-muted); font-size: 1.1rem; max-width: 560px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 26px 0 18px; }
.hero-badges { list-style: none; padding: 0; margin: 0; display: flex; gap: 16px; flex-wrap: wrap; font-size: .9rem; }

.hero-illustration { position: relative; }
.mock-window { border-radius: var(--hoc-radius-lg); overflow: hidden; box-shadow: 0 30px 80px -30px rgba(13,110,253,.4); }
.glass { background: color-mix(in oklab, var(--hoc-surface) 70%, transparent); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid color-mix(in oklab, var(--hoc-border) 60%, transparent); }
.mock-titlebar { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--hoc-border); background: color-mix(in oklab, var(--hoc-bg) 50%, transparent); }
.mock-titlebar .dot { width: 12px; height: 12px; border-radius: 50%; }
.mock-titlebar .red { background: #ff5f56; } .yellow { background: #ffbd2e; } .green { background: #27c93f; }
.mock-filename { margin-left: 12px; font-family: var(--font-mono); font-size: .8rem; color: var(--hoc-muted); }
.mock-code { padding: 22px; margin: 0; font-family: var(--font-mono); font-size: .88rem; line-height: 1.7; overflow-x: auto; color: var(--hoc-fg); }
.mock-code .tag { color: #6f42c1; } .mock-code .str { color: var(--hoc-success); } .emoji { font-family: inherit; }
.floating-badge { position: absolute; bottom: -20px; left: -20px; padding: 10px 18px; border-radius: 999px; font-weight: 600; font-size: .9rem; box-shadow: var(--hoc-shadow); }

/* ---------- Sections ---------- */
section { padding: 70px 0; }
.section-head { text-align: center; margin-bottom: 40px; }
.section-title { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 800; }
.section-sub { max-width: 640px; margin: 8px auto 0; }

/* ---------- Compiler ---------- */
.compiler-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 14px; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tb-label { font-size: .85rem; color: var(--hoc-muted); }
.tb-select { padding: 7px 12px; border-radius: 10px; border: 1px solid var(--hoc-border); background: var(--hoc-bg); color: var(--hoc-fg); font-family: inherit; font-size: .9rem; }
.compiler-split { display: grid; grid-template-columns: 1fr 6px 1fr; height: 560px; overflow: hidden; padding: 0; }
.editor-pane, .preview-pane { display: flex; flex-direction: column; min-width: 0; }
.pane-head { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--hoc-border); background: color-mix(in oklab, var(--hoc-bg) 50%, transparent); font-size: .85rem; }
.pane-title { font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--hoc-muted); }
.ace-editor { flex: 1; min-height: 300px; font-size: 14px !important; }
.splitter { background: var(--hoc-border); cursor: col-resize; transition: background .2s; }
.splitter:hover { background: var(--hoc-primary); }
.iframe-wrap { flex: 1; background: #fff; overflow: auto; display: flex; justify-content: center; padding: 12px; }
.iframe-wrap iframe { width: 100%; height: 100%; border: 0; background: #fff; border-radius: 8px; box-shadow: var(--hoc-shadow-sm); }
.iframe-wrap.mobile iframe { max-width: 390px; }
.iframe-wrap.tablet iframe { max-width: 820px; }
.viewport-buttons button { background: transparent; border: 1px solid transparent; padding: 4px 8px; border-radius: 8px; cursor: pointer; font-size: 1rem; }
.viewport-buttons button.is-active { border-color: var(--hoc-primary); background: var(--hoc-gradient-soft); }

.compiler-split.fullscreen { position: fixed; inset: 0; z-index: 200; height: 100vh; border-radius: 0; }

/* ---------- Feature grid ---------- */
.feature-grid, .why-grid, .tools-grid, .blog-grid, .posts-grid { display: grid; gap: 20px; }
.feature-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.feature-card { padding: 24px; transition: transform .2s ease, box-shadow .2s ease, border-color .2s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--hoc-shadow); border-color: color-mix(in oklab, var(--hoc-primary) 30%, var(--hoc-border)); }
.feature-icon { width: 46px; height: 46px; border-radius: 12px; background: var(--hoc-gradient-soft); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: 14px; }
.feature-title { font-size: 1.1rem; margin: 0 0 6px; }

/* ---------- Why ---------- */
.why-grid { grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); }
.why-card { padding: 24px; text-align: center; }
.why-icon { font-size: 2rem; margin-bottom: 10px; }

/* ---------- How ---------- */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: hoc-step; }
.step { padding: 28px; position: relative; }
.step-num { display: inline-flex; width: 40px; height: 40px; border-radius: 12px; background: var(--hoc-gradient); color: #fff; align-items: center; justify-content: center; font-weight: 700; margin-bottom: 12px; }

/* ---------- Tools ---------- */
.tools-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.tool-card { padding: 24px; text-align: left; color: var(--hoc-fg); text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--hoc-shadow); text-decoration:none; }
.tool-icon { font-size: 1.6rem; margin-bottom: 10px; }
.tool-link { display: inline-block; margin-top: 8px; color: var(--hoc-primary); font-weight: 600; font-size: .9rem; }

/* ---------- Blog ---------- */
.blog-grid, .posts-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.blog-card, .post-card { overflow: hidden; display: flex; flex-direction: column; }
.blog-thumb img, .post-card-thumb img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.blog-body, .post-card-body { padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.blog-card h3 a, .post-card-title a { color: var(--hoc-fg); text-decoration: none; }
.blog-card h3 a:hover, .post-card-title a:hover { color: var(--hoc-primary); }
.read-more { color: var(--hoc-primary); font-weight: 600; margin-top: 6px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 10px; }
.faq-item { padding: 0; }
.faq-item summary { list-style: none; cursor: pointer; padding: 18px 22px; display: flex; justify-content: space-between; align-items: center; font-weight: 600; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item .chev { transition: transform .2s; font-size: 1.4rem; color: var(--hoc-primary); }
.faq-item[open] .chev { transform: rotate(45deg); }
.faq-answer { padding: 0 22px 20px; color: var(--hoc-muted); }

/* ---------- Content pages ---------- */
.page-header { padding: 60px 0 30px; text-align: center; }
.page-title { font-size: clamp(1.8rem, 3.5vw, 2.4rem); }
.content-with-sidebar { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 40px; padding-bottom: 60px; }
.no-sidebar .content-with-sidebar { grid-template-columns: 1fr; }
.widget-area .widget { padding: 20px; background: var(--hoc-surface); border: 1px solid var(--hoc-border); border-radius: var(--hoc-radius); margin-bottom: 20px; }
.widget-title { margin: 0 0 12px; font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; color: var(--hoc-muted); }
.single-post, .page-article { padding: 32px; }
.entry-title { font-size: clamp(1.8rem, 3.5vw, 2.4rem); }
.entry-meta { margin-bottom: 20px; }
.entry-thumbnail img { border-radius: 12px; margin-bottom: 20px; }
.entry-content > * + * { margin-top: 1em; }
.entry-content h2, .entry-content h3 { margin-top: 1.6em; }
.entry-content pre { background: var(--hoc-dark); color: #e6edf7; padding: 18px; border-radius: 10px; overflow-x: auto; font-family: var(--font-mono); font-size: .9rem; }
.entry-content code { font-family: var(--font-mono); background: color-mix(in oklab, var(--hoc-primary) 10%, transparent); padding: 2px 6px; border-radius: 6px; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs ol { list-style:none; padding:0; margin:0 0 12px; display:flex; gap:6px; flex-wrap: wrap; font-size:.85rem; color: var(--hoc-muted); }
.breadcrumbs .sep { color: var(--hoc-muted); }
.breadcrumbs a { color: var(--hoc-primary); }

/* ---------- Comments ---------- */
.comments-area { padding: 28px; margin-top: 24px; }
.comment-list { list-style: none; padding: 0; }
.comment-list li { padding: 16px 0; border-top: 1px solid var(--hoc-border); }

/* ---------- Pagination ---------- */
.navigation.pagination { margin: 30px 0; display: flex; justify-content: center; }
.nav-links { display: flex; gap: 6px; }
.page-numbers { padding: 8px 14px; border-radius: 10px; border: 1px solid var(--hoc-border); color: var(--hoc-fg); text-decoration: none; }
.page-numbers.current, .page-numbers:hover { background: var(--hoc-gradient); color: #fff; border-color: transparent; }

/* ---------- Footer ---------- */
.site-footer { background: var(--hoc-surface); border-top: 1px solid var(--hoc-border); margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 40px; padding: 60px 20px 40px; }
.footer-menu, .footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-menu a, .footer-col a { color: var(--hoc-fg); text-decoration: none; }
.footer-menu a:hover, .footer-col a:hover { color: var(--hoc-primary); }
.social-icons { display: flex; gap: 8px; margin-top: 14px; }
.social-icon { width: 40px; height: 40px; border-radius: 12px; background: var(--hoc-gradient-soft); color: var(--hoc-primary); display: inline-flex; align-items: center; justify-content: center; font-weight: 700; font-size: .75rem; text-decoration: none; border: 1px solid var(--hoc-border); }
.social-icon:hover { background: var(--hoc-gradient); color: #fff; }
.newsletter-form { display: grid; gap: 8px; }
.newsletter-form input { padding: 10px 14px; border-radius: 10px; border: 1px solid var(--hoc-border); background: var(--hoc-bg); color: var(--hoc-fg); font-family: inherit; }
.site-info { border-top: 1px solid var(--hoc-border); padding: 18px 0; text-align: center; color: var(--hoc-muted); font-size: .9rem; }

/* ---------- 404 ---------- */
.error-404 { padding: 100px 20px; text-align: center; }
.error-inner { padding: 60px 30px; max-width: 640px; margin: 0 auto; }
.huge-title { font-size: clamp(4rem, 12vw, 8rem); background: var(--hoc-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; margin: 0; }
.error-actions { display: flex; gap: 12px; justify-content: center; margin: 20px 0; flex-wrap: wrap; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
	.hero-inner { grid-template-columns: 1fr; gap: 40px; }
	.steps { grid-template-columns: 1fr; }
	.content-with-sidebar { grid-template-columns: 1fr; }
	.footer-grid { grid-template-columns: 1fr 1fr; }
	.compiler-split { grid-template-columns: 1fr; grid-template-rows: 400px 6px 400px; height: auto; }
	.splitter { cursor: row-resize; }
}
@media (max-width: 720px) {
	.header-inner { grid-template-columns: auto auto; }
	.main-navigation { order: 3; grid-column: 1 / -1; display: none; }
	.main-navigation.is-open { display: block; }
	.main-navigation ul { flex-direction: column; align-items: stretch; }
	.menu-toggle { display: inline-flex; }
	.btn-cta { display: none; }
	.footer-grid { grid-template-columns: 1fr; }
	section { padding: 50px 0; }
}