@import url('./tokens.css');

@font-face {
	font-family: 'Inter Variable';
	font-style: normal;
	font-display: swap;
	font-weight: 100 900;
	src: url('/fonts/inter-latin-wght-normal.woff2') format('woff2-variations');
}
@font-face {
	font-family: 'JetBrains Mono Variable';
	font-style: normal;
	font-display: swap;
	font-weight: 100 800;
	src: url('/fonts/jetbrains-mono-latin-wght-normal.woff2') format('woff2-variations');
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

body {
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	background:
		radial-gradient(60rem 30rem at 85% -10%, var(--accent-soft), transparent 70%),
		var(--bg);
	color: var(--text);
	font-family: var(--font-sans);
	font-size: var(--step-0);
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}
main { flex: 1; display: flex; flex-direction: column; justify-content: center; }
svg { display: block; }
code { font-family: var(--font-mono); font-size: var(--step--1); overflow-wrap: anywhere; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container {
	width: 100%;
	max-width: var(--max-width);
	margin-inline: auto;
	padding-inline: var(--gutter);
}
.visually-hidden {
	position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
	overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Header */
.top { display: flex; align-items: center; justify-content: space-between; padding-block: var(--space-5); }
.logo { display: inline-flex; align-items: center; gap: var(--space-2); text-decoration: none; }
.logo .shield { fill: var(--surface); stroke: var(--accent); }
.logo .glyph { stroke: var(--text); }
.logo .link { stroke: var(--accent); }
.word { font-weight: 700; font-size: 1.25rem; letter-spacing: -0.02em; }
.sec { color: var(--accent); }
.beta {
	margin-left: var(--space-1);
	padding: 0.1rem 0.5rem;
	font-family: var(--font-mono);
	font-size: 0.75rem;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--accent);
	background: var(--accent-soft);
	border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
	border-radius: 999px;
}
.theme-toggle {
	display: grid; place-items: center;
	width: 2.5rem; height: 2.5rem;
	background: var(--surface); color: var(--text);
	border: 1px solid var(--border); border-radius: var(--radius-2);
	cursor: pointer;
	transition: border-color var(--dur-1) var(--ease);
}
.theme-toggle:hover { border-color: var(--border-strong); }
.theme-toggle[hidden] { display: none; }
.theme-toggle svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.theme-toggle .moon, .theme-toggle[data-current='dark'] .sun { display: none; }
.theme-toggle[data-current='dark'] .moon { display: block; }

/* Hero */
.hero {
	display: grid;
	gap: var(--space-7);
	align-items: center;
	padding-block: var(--space-7) var(--space-8);
}
@media (min-width: 60rem) {
	.hero { grid-template-columns: 1.05fr 1fr; gap: var(--space-8); }
}
.status {
	display: inline-flex; align-items: center; gap: var(--space-2);
	margin-bottom: var(--space-4);
	font-family: var(--font-mono); font-size: var(--step--1);
	text-transform: uppercase; letter-spacing: 0.08em;
	color: var(--accent);
}
.pulse {
	width: 0.55rem; height: 0.55rem; border-radius: 50%;
	background: var(--accent);
	box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 60%, transparent);
}
h1 {
	font-size: var(--step-5);
	line-height: 1.08;
	letter-spacing: -0.025em;
	font-weight: 700;
	text-wrap: balance;
}
.lead { margin-top: var(--space-5); max-width: 34rem; font-size: var(--step-1); color: var(--text-muted); }
.ctas { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }
.btn {
	display: inline-flex; align-items: center; justify-content: center;
	padding: 0.8rem 1.4rem;
	font-weight: 600; text-decoration: none;
	border-radius: var(--radius-2); border: 1px solid transparent;
	transition: background-color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.btn.primary { background: var(--accent); color: var(--accent-contrast); }
.btn.primary:hover { background: var(--accent-hover); }
.btn.secondary { background: var(--surface); border-color: var(--border-strong); }
.btn.secondary:hover { border-color: var(--accent); }

/* Flow card */
.flow {
	position: relative;
	display: grid; gap: var(--space-4);
	padding: clamp(var(--space-4), 3vw, var(--space-6));
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius-3);
	box-shadow: var(--shadow);
}
.row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); }
.k {
	font-family: var(--font-mono); font-size: 0.75rem;
	text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted);
}
.steps { list-style: none; padding: 0; display: grid; gap: var(--space-2); grid-template-columns: repeat(2, 1fr); }
@media (min-width: 30rem) { .steps { grid-template-columns: repeat(4, 1fr); } }
.steps li {
	display: grid; gap: var(--space-1); align-content: start;
	padding: var(--space-3);
	background: var(--surface-raised);
	border: 1px solid var(--border);
	border-radius: var(--radius-2);
	font-size: var(--step--1);
}
.steps strong { font-size: 0.95rem; }
.steps li > span:last-child { color: var(--text-muted); line-height: 1.4; }
.num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent); }
.rail { position: relative; height: 3px; border-radius: 3px; background: var(--border); overflow: hidden; }
.packet {
	position: absolute; inset-block: 0; left: 0; width: 18%;
	border-radius: inherit;
	background: linear-gradient(90deg, transparent, var(--accent));
}
.badge {
	padding: 0.15rem 0.6rem;
	font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600;
	text-transform: uppercase; letter-spacing: 0.05em;
	border-radius: 999px;
}
.badge.escalate { color: var(--escalate); background: var(--escalate-soft); }

/* Points */
.points { display: grid; gap: var(--space-4); padding-bottom: var(--space-8); }
@media (min-width: 48rem) { .points { grid-template-columns: repeat(3, 1fr); } }
.points article {
	padding: var(--space-5);
	border-top: 2px solid var(--accent);
	background: color-mix(in srgb, var(--surface) 70%, transparent);
	border-radius: 0 0 var(--radius-2) var(--radius-2);
}
.points h2 { font-size: var(--step-1); font-weight: 650; letter-spacing: -0.01em; }
.points p { margin-top: var(--space-2); color: var(--text-muted); font-size: var(--step--1); }

/* Footer */
.foot {
	display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3);
	padding-block: var(--space-5);
	border-top: 1px solid var(--border);
	font-size: var(--step--1); color: var(--text-muted);
}
.foot a { color: var(--text-muted); text-decoration-color: var(--border-strong); }
.foot a:hover { color: var(--accent); }

/* Motion (only when allowed; the static state is complete) */
@media (prefers-reduced-motion: no-preference) {
	.pulse { animation: pulse 2s var(--ease) infinite; }
	.packet { animation: travel 3.2s var(--ease) infinite; }
	.hero-text, .flow, .points article { animation: rise var(--dur-3) var(--ease) both; }
	.flow { animation-delay: 120ms; }
	.points article:nth-child(2) { animation-delay: 80ms; }
	.points article:nth-child(3) { animation-delay: 160ms; }
}
@keyframes pulse {
	70% { box-shadow: 0 0 0 0.6rem transparent; }
	100% { box-shadow: 0 0 0 0 transparent; }
}
@keyframes travel { from { left: -18%; } to { left: 100%; } }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } }