/* Public marketing surface. Depends on base.css for tokens. */

/* ------------------------------------------------------------------- header */

.site-header {
	position: sticky;
	top: 0;
	z-index: 50;
	background: rgba(8, 9, 13, .82);
	backdrop-filter: saturate(160%) blur(12px);
	border-bottom: 1px solid var(--border-soft);
}

.site-header .wrap {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 20px;
	height: 62px;
}

.brand { display: flex; align-items: center; gap: 9px; font-weight: 680; font-size: 17px; letter-spacing: -0.02em; }
.brand-mark {
	width: 22px; height: 22px; border-radius: 6px; flex-shrink: 0;
	background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
	box-shadow: 0 0 16px -2px var(--accent-glow);
}

.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a.nav-link { color: var(--text-muted); font-size: 15px; transition: color .16s ease; }
.site-nav a.nav-link:hover { color: var(--text); }
.header-cta { display: flex; align-items: center; gap: 10px; }

@media (max-width: 780px) {
	.site-nav .nav-link { display: none; }
}

/* --------------------------------------------------------------------- hero */

.hero { position: relative; padding: 92px 0 76px; overflow: hidden; }

/* Light source behind the headline, pulling the eye toward the CTA beneath it. */
.hero::before {
	content: "";
	position: absolute;
	top: -320px; left: 50%;
	transform: translateX(-50%);
	width: 900px; height: 620px;
	background: radial-gradient(closest-side, rgba(52, 229, 139, .14), transparent 72%);
	pointer-events: none;
}

/* Dot field behind the headline. Masked to a soft ellipse so it never reads as
   a hard-edged texture block, and kept under the glow above. */
.hero-canvas {
	position: absolute;
	inset: 0;
	width: 100%; height: 100%;
	color: var(--surface-3);
	opacity: .5;
	pointer-events: none;
}

.hero .wrap { position: relative; }

.hero-badge {
	display: inline-flex; align-items: center; gap: 8px;
	padding: 5px 13px 5px 6px;
	border-radius: 999px;
	background: var(--surface);
	border: 1px solid var(--border);
	font-size: 13px;
	color: var(--text-muted);
	margin-bottom: 26px;
}
.hero-badge .tag {
	background: rgba(52, 229, 139, .14); color: var(--accent);
	padding: 2px 9px; border-radius: 999px; font-size: 11px; font-weight: 640;
	letter-spacing: .03em; text-transform: uppercase;
}

.hero h1 {
	font-size: clamp(2.4rem, 5.6vw, 4rem);
	max-width: 15ch;
	margin-bottom: 20px;
	font-weight: 680;
	letter-spacing: -0.035em;
}
.hero h1 .grad {
	background: linear-gradient(100deg, var(--accent) 10%, #7ef2c0 55%, var(--info) 130%);
	-webkit-background-clip: text; background-clip: text;
	-webkit-text-fill-color: transparent;
}

.hero-sub { font-size: clamp(1.05rem, 1.9vw, 1.24rem); color: var(--text-muted); max-width: 60ch; margin: 0 0 34px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-reassure { margin: 16px 0 0; font-size: 13.5px; color: var(--text-dim); }
.hero-reassure strong { color: var(--text-muted); font-weight: 550; }

/* --------------------------------------------------------------- code panel */

.code-split {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 18px;
	margin-top: 58px;
}

@media (max-width: 900px) { .code-split { grid-template-columns: 1fr; } }

.code-card {
	background: var(--bg-raised);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow-lg);
}

.code-head {
	display: flex; align-items: center; gap: 10px;
	padding: 11px 16px;
	border-bottom: 1px solid var(--border-soft);
	background: var(--surface);
}
.code-dots { display: flex; gap: 6px; }
.code-dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--surface-3); display: block; }
.code-title { font-size: 12.5px; color: var(--text-dim); font-family: var(--font-mono); }

.code-card pre {
	margin: 0;
	padding: 18px 20px;
	font-size: 13px;
	line-height: 1.75;
	overflow-x: auto;
	color: #cdd4e3;
}

.tok-key { color: #8ab4ff; }
.tok-str { color: var(--accent); }
.tok-fn  { color: #ffd479; }
.tok-com { color: var(--text-dim); font-style: italic; }

/* ----------------------------------------------------------------- sections */

.section { padding: 84px 0; }
.section-alt { background: var(--bg-raised); border-block: 1px solid var(--border-soft); }

.section-head { max-width: 62ch; margin-bottom: 44px; }
.eyebrow {
	display: block; font-size: 12px; font-weight: 640; letter-spacing: .1em;
	text-transform: uppercase; color: var(--accent); margin-bottom: 14px;
}
.section-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.35rem); margin-bottom: 14px; }
.section-head p { color: var(--text-muted); font-size: 1.05rem; margin: 0; }

/* ------------------------------------------------------- architecture figure */

.arch-figure { margin: 0 0 48px; }

.arch-svg {
	display: block;
	width: 100%;
	height: auto;
	max-width: 980px;
	margin: 0 auto;
	overflow: visible;
}

.arch-node { fill: var(--surface); stroke: var(--border); stroke-width: 1; }
.arch-node.is-accent {
	fill: var(--bg-raised);
	stroke: rgba(52, 229, 139, .38);
}

.arch-label {
	fill: var(--text);
	font-family: var(--font-sans);
	font-size: 15px;
	font-weight: 620;
	letter-spacing: -0.01em;
}
.arch-label.is-sm { font-size: 13.5px; }

.arch-sub {
	fill: var(--text-dim);
	font-family: var(--font-mono);
	font-size: 11.5px;
}

.arch-wire { fill: none; stroke: var(--surface-3); stroke-width: 1.5; }
.arch-head { fill: none; stroke: var(--surface-3); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.arch-rule { stroke: var(--border-soft); stroke-width: 1; }
.arch-dot  { fill: var(--accent); opacity: .75; }
.arch-live { fill: var(--accent); }

/* The event itself, travelling backend -> broker -> every subscriber. The fan
   legs start a beat later so the hop reads as causal rather than simultaneous. */
.arch-packet {
	fill: var(--accent);
	opacity: 0;
	offset-rotate: 0deg;
}
.arch-packet:not(.is-fan1):not(.is-fan2):not(.is-fan3) {
	offset-path: path("M190 158 H378");
	animation: arch-travel 2.8s cubic-bezier(.4, 0, .5, 1) infinite;
}
.arch-packet.is-fan1 {
	offset-path: path("M592 158 C 670 158, 680 78, 752 78");
	animation: arch-travel 2.8s cubic-bezier(.4, 0, .5, 1) .55s infinite;
}
.arch-packet.is-fan2 {
	offset-path: path("M592 158 H752");
	animation: arch-travel 2.8s cubic-bezier(.4, 0, .5, 1) .55s infinite;
}
.arch-packet.is-fan3 {
	offset-path: path("M592 158 C 670 158, 680 238, 752 238");
	animation: arch-travel 2.8s cubic-bezier(.4, 0, .5, 1) .55s infinite;
}

@keyframes arch-travel {
	0%        { offset-distance: 0%;   opacity: 0; }
	12%       { opacity: 1; }
	38%       { offset-distance: 100%; opacity: 1; }
	46%, 100% { offset-distance: 100%; opacity: 0; }
}

.arch-figure figcaption {
	max-width: 62ch;
	margin: 20px auto 0;
	text-align: center;
	font-size: 14px;
	color: var(--text-dim);
}

/* Below this the boxes and 11px mono labels stop being legible, and the diagram
   is decorative — the walkthrough beneath carries the same content in prose. */
@media (max-width: 720px) {
	.arch-figure { display: none; }
}

@media (prefers-reduced-motion: reduce) {
	.arch-packet { animation: none; opacity: 0; }
}

/* ----------------------------------------------------------------- features */

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }

.feature {
	position: relative;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	padding: 26px;
	transition: border-color .18s ease, transform .18s ease;
}
.feature:hover { border-color: var(--surface-3); transform: translateY(-2px); }

.feature.is-highlight { border-color: rgba(52, 229, 139, .34); background: linear-gradient(180deg, rgba(52, 229, 139, .05), var(--surface) 55%); }

.feature-icon {
	width: 38px; height: 38px; border-radius: 10px;
	display: grid; place-items: center;
	background: rgba(52, 229, 139, .1);
	border: 1px solid rgba(52, 229, 139, .2);
	margin-bottom: 16px;
	color: var(--accent);
}
.feature-icon svg { width: 19px; height: 19px; display: block; }

.feature h3 { font-size: 1.03rem; margin-bottom: 8px; }
.feature p { color: var(--text-muted); font-size: 14.5px; margin: 0; }
.feature code { background: var(--bg-raised); padding: 1px 5px; border-radius: 4px; font-size: 12.5px; }

/* Corner badge so the highlighted card's title stays on the row's baseline. */
.feature-flag {
	position: absolute; top: 18px; right: 18px;
	font-size: 10px; font-weight: 680; letter-spacing: .06em; text-transform: uppercase;
	color: var(--accent);
	background: rgba(52, 229, 139, .12);
	border: 1px solid rgba(52, 229, 139, .25);
	padding: 3px 9px; border-radius: 999px;
}

/* --------------------------------------------------------- how it works */

.tablist {
	display: flex;
	gap: 6px;
	margin-bottom: 22px;
	overflow-x: auto;
	scrollbar-width: none;
	padding-bottom: 2px;
}
.tablist::-webkit-scrollbar { display: none; }

.tab {
	display: inline-flex; align-items: center; gap: 9px;
	flex-shrink: 0;
	background: transparent;
	border: 1px solid var(--border);
	border-radius: 999px;
	color: var(--text-muted);
	padding: 8px 16px 8px 9px;
	font: inherit; font-size: 14.5px; font-weight: 540;
	cursor: pointer;
	transition: color .16s ease, border-color .16s ease, background .16s ease;
}
.tab:hover { color: var(--text); border-color: var(--surface-3); }

.tab-num {
	width: 22px; height: 22px; border-radius: 50%;
	display: grid; place-items: center;
	background: var(--surface-2);
	color: var(--text-dim);
	font-family: var(--font-mono); font-size: 12px; font-weight: 620;
	transition: background .16s ease, color .16s ease;
}

.tab[aria-selected="true"] {
	color: var(--text);
	border-color: rgba(52, 229, 139, .4);
	background: rgba(52, 229, 139, .07);
}
.tab[aria-selected="true"] .tab-num {
	background: linear-gradient(180deg, var(--accent) 0%, var(--accent-2) 100%);
	color: var(--accent-ink);
}

.panel {
	display: grid;
	grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
	gap: 26px;
	align-items: start;
}
.panel[hidden] { display: none; }

@media (max-width: 900px) { .panel { grid-template-columns: 1fr; } }

.panel-copy h3 { font-size: 1.22rem; margin-bottom: 12px; }
.panel-copy > p { color: var(--text-muted); font-size: 15px; margin: 0 0 18px; }
.panel-copy code { background: var(--bg-raised); padding: 1px 5px; border-radius: 4px; font-size: 12.5px; color: var(--accent); }

.panel-list { list-style: none; margin: 0 0 18px; padding: 0; display: grid; gap: 10px; }
.panel-list li {
	position: relative;
	padding-left: 22px;
	color: var(--text-muted);
	font-size: 14.5px;
}
.panel-list li::before {
	content: "";
	position: absolute; left: 4px; top: .62em;
	width: 6px; height: 6px; border-radius: 50%;
	background: var(--accent);
}
.panel-list strong { color: var(--text); font-weight: 600; }

.panel-note {
	margin: 0;
	padding: 13px 15px;
	border-left: 2px solid rgba(52, 229, 139, .45);
	background: rgba(52, 229, 139, .05);
	border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
	color: var(--text-muted);
	font-size: 13.5px;
}

.panel .code-card { min-width: 0; }
.panel .code-card pre { font-size: 12.5px; }

.walkthrough-cta {
	display: flex; align-items: center; gap: 16px;
	margin-top: 34px; flex-wrap: wrap;
}

/* Without JS the tabs cannot switch, so show every step stacked instead of
   stranding the reader on step one with dead controls. */
.no-js .tablist { display: none; }
.no-js .panel[hidden] { display: grid; }
.no-js .panel { margin-bottom: 40px; }

/* ------------------------------------------------------------------ pricing */

.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(272px, 1fr)); gap: 18px; align-items: start; }

.price-card {
	position: relative;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	padding: 28px 26px;
	display: flex; flex-direction: column;
	height: 100%;
}

.price-card.featured {
	border-color: rgba(52, 229, 139, .42);
	background: linear-gradient(180deg, rgba(52, 229, 139, .06) 0%, var(--surface) 46%);
	box-shadow: 0 0 0 1px rgba(52, 229, 139, .1), var(--shadow-lg);
}

.price-tag {
	position: absolute; top: -11px; left: 26px;
	background: linear-gradient(180deg, var(--accent) 0%, var(--accent-2) 100%);
	color: var(--accent-ink);
	font-size: 11px; font-weight: 680; letter-spacing: .05em; text-transform: uppercase;
	padding: 4px 11px; border-radius: 999px;
}

.price-name { font-size: 1.05rem; font-weight: 620; margin-bottom: 6px; }
.price-amount { display: flex; align-items: baseline; gap: 6px; margin: 12px 0 4px; }
.price-amount .amount { font-size: 2.5rem; font-weight: 680; letter-spacing: -0.04em; }
.price-amount .per { color: var(--text-dim); font-size: 14px; }
.price-note { color: var(--text-dim); font-size: 13px; margin: 0 0 22px; }

.price-list { list-style: none; margin: 0 0 26px; padding: 0; display: grid; gap: 11px; flex: 1; }
.price-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: var(--text-muted); }
.price-list .check { color: var(--accent); flex-shrink: 0; font-weight: 700; line-height: 1.45; }
.price-list .cross { color: var(--text-dim); flex-shrink: 0; line-height: 1.45; }
.price-list li.off { color: var(--text-dim); }
.price-list strong { color: var(--text); font-weight: 600; }

/* --------------------------------------------------------------- final band */

.cta-band { padding: 92px 0; position: relative; overflow: hidden; text-align: center; }
.cta-band::before {
	content: "";
	position: absolute; inset: 0;
	background: radial-gradient(60% 130% at 50% 0%, rgba(52, 229, 139, .12), transparent 70%);
	pointer-events: none;
}
/* Concentric broadcast rings, echoing the fan-out in the diagram above. */
.cta-rings {
	position: absolute;
	top: 50%; left: 50%;
	width: 760px; height: 760px;
	transform: translate(-50%, -50%);
	fill: none;
	stroke: var(--accent);
	stroke-width: 1;
	opacity: .1;
	pointer-events: none;
}
.cta-rings circle { transform-origin: 200px 200px; animation: cta-ring 4.5s ease-out infinite; }
.cta-rings circle:nth-child(2) { animation-delay: 1.1s; }
.cta-rings circle:nth-child(3) { animation-delay: 2.2s; }
.cta-rings circle:nth-child(4) { animation-delay: 3.3s; }

@keyframes cta-ring {
	0%   { transform: scale(.35); opacity: 0; }
	22%  { opacity: 1; }
	100% { transform: scale(1.15); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
	.cta-rings circle { animation: none; }
}

.cta-band .wrap { position: relative; }
.cta-band h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); margin-bottom: 16px; }
.cta-band p { color: var(--text-muted); font-size: 1.08rem; max-width: 52ch; margin: 0 auto 30px; }
.cta-band .hero-actions { justify-content: center; }

/* ------------------------------------------------------------------- footer */

.site-footer { border-top: 1px solid var(--border-soft); padding: 34px 0; }
.site-footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.site-footer p { margin: 0; color: var(--text-dim); font-size: 13.5px; }
.footer-links { display: flex; gap: 22px; }
.footer-links a { color: var(--text-muted); font-size: 13.5px; }
.footer-links a:hover { color: var(--text); }

/* -------------------------------------------------------------------- auth */

.auth-shell { min-height: 100vh; display: flex; flex-direction: column; }
.auth-body { flex: 1; display: grid; place-items: center; padding: 48px 24px; position: relative; }
.auth-body::before {
	content: "";
	position: absolute; top: -260px; left: 50%; transform: translateX(-50%);
	width: 720px; height: 520px;
	background: radial-gradient(closest-side, rgba(52, 229, 139, .1), transparent 72%);
	pointer-events: none;
}

.auth-card {
	position: relative;
	width: 100%; max-width: 396px;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
	padding: 34px 32px;
	box-shadow: var(--shadow-lg);
}

.auth-brand { display: flex; align-items: center; justify-content: center; gap: 9px; margin-bottom: 20px; font-weight: 680; font-size: 17px; }
.auth-title { text-align: center; font-size: 1.42rem; margin-bottom: 6px; }
.auth-sub { text-align: center; color: var(--text-muted); font-size: 14.5px; margin: 0 0 26px; }

.auth-card label { display: block; font-size: 13px; color: var(--text-muted); margin: 15px 0 6px; font-weight: 520; }
.auth-card input { width: 100%; }
.auth-card .btn-block { margin-top: 22px; }
.auth-card .hint { display: block; margin-top: 6px; font-size: 12.5px; color: var(--text-dim); }

.auth-alt { text-align: center; font-size: 14px; color: var(--text-muted); margin: 20px 0 0; }
.auth-alt a { color: var(--accent); font-weight: 550; }
.auth-alt a:hover { text-decoration: underline; }

.auth-perks { list-style: none; margin: 24px 0 0; padding: 22px 0 0; border-top: 1px solid var(--border-soft); display: grid; gap: 9px; }
.auth-perks li { display: flex; gap: 9px; font-size: 13.5px; color: var(--text-muted); }
.auth-perks .check { color: var(--accent); font-weight: 700; }

.alert {
	background: rgba(255, 107, 107, .1);
	border: 1px solid rgba(255, 107, 107, .3);
	color: #ffb4b4;
	padding: 10px 13px;
	border-radius: var(--radius-sm);
	font-size: 13.5px;
	margin-bottom: 4px;
}

/* -------------------------------------------------------------------- docs */

.docs-hero { padding: 56px 0 8px; }
.docs-hero h1 { font-size: clamp(2rem, 4vw, 2.7rem); max-width: 22ch; margin-bottom: 14px; }
.docs-hero p { color: var(--text-muted); font-size: 1.05rem; max-width: 62ch; margin: 0; }

.docs-shell {
	display: grid;
	grid-template-columns: 220px minmax(0, 1fr);
	gap: 48px;
	align-items: start;
	padding: 40px 0 100px;
}

@media (max-width: 900px) {
	.docs-shell { grid-template-columns: 1fr; }
}

.docs-toc {
	position: sticky;
	top: 82px;
	display: grid;
	gap: 2px;
	max-height: calc(100vh - 100px);
	overflow-y: auto;
}

.docs-toc-group { margin: 18px 0 4px; padding: 0 12px; font-size: 11px; font-weight: 640; letter-spacing: .05em; text-transform: uppercase; color: var(--text-dim); }
.docs-toc-group:first-child { margin-top: 0; }

.docs-toc a {
	padding: 6px 12px;
	border-radius: var(--radius-sm);
	font-size: 14px;
	color: var(--text-muted);
	transition: color .16s ease, background .16s ease;
}
.docs-toc a:hover { color: var(--text); background: var(--surface); }

@media (max-width: 900px) {
	.docs-toc { position: static; max-height: none; display: flex; flex-wrap: wrap; gap: 6px; }
	.docs-toc-group { display: none; }
	.docs-toc a { border: 1px solid var(--border); }
}

.docs-content { min-width: 0; max-width: 74ch; }

.docs-section { padding-top: 46px; margin-top: 46px; border-top: 1px solid var(--border-soft); scroll-margin-top: 82px; }
.docs-section:first-child { padding-top: 0; margin-top: 0; border-top: none; }

.docs-section h2 { font-size: 1.55rem; margin-bottom: 14px; }
.docs-section h3 { font-size: 1.15rem; margin: 30px 0 10px; }
.docs-section > p, .docs-section li { color: var(--text-muted); font-size: 15px; line-height: 1.75; }
.docs-section > p { margin: 0 0 16px; }
.docs-section code { background: var(--bg-raised); padding: 1px 6px; border-radius: 4px; font-size: 12.8px; color: var(--accent); }
.docs-section pre code { background: none; padding: 0; color: inherit; }

.docs-section ul, .docs-section ol { margin: 0 0 16px; padding-left: 22px; display: grid; gap: 6px; }

.docs-note {
	margin: 0 0 20px;
	padding: 13px 15px;
	border-left: 2px solid rgba(52, 229, 139, .45);
	background: rgba(52, 229, 139, .05);
	border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
	color: var(--text-muted);
	font-size: 13.5px;
}
.docs-note strong { color: var(--text); }

.docs-warn {
	margin: 0 0 20px;
	padding: 13px 15px;
	border-left: 2px solid rgba(255, 107, 107, .5);
	background: rgba(255, 107, 107, .06);
	border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
	color: var(--text-muted);
	font-size: 13.5px;
}
.docs-warn strong { color: var(--text); }

.docs-table-wrap { overflow-x: auto; margin: 0 0 24px; }
.docs-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.docs-table th, .docs-table td { text-align: left; padding: 9px 14px; border-bottom: 1px solid var(--border-soft); }
.docs-table th { color: var(--text-dim); font-weight: 560; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
.docs-table td { color: var(--text-muted); }
.docs-table td:first-child, .docs-table td code { color: var(--text); }
.docs-table tr:last-child td { border-bottom: none; }

/* A single code-card behind a language tablist, as opposed to .panel's
   two-column copy+code layout — used for every multi-language example. */
.docs-lang-panel[hidden] { display: none; }
.docs-lang-panel .code-card { min-width: 0; }
.docs-lang-panel .code-card pre { font-size: 12.8px; }

.no-js .docs-lang-panel[hidden] { display: block; }
.no-js [data-tabgroup] .tablist { display: none; }
.no-js [data-tabgroup] .docs-lang-panel { margin-bottom: 14px; }
.no-js [data-tabgroup] .docs-lang-panel .code-title::after { content: " — shown without JS tabs"; }