:root {
	--sc-ink: #0f172a;
	--sc-muted: #64748b;
	--sc-line: #e2e8f0;
	--sc-soft: #f8fafc;
	--sc-accent: #0f766e;
	--sc-accent-2: #0e7490;
	--sc-ebay: #0064d2;
	--sc-ok: #15803d;
	--sc-bad: #b91c1c;
	--sc-radius: 12px;
	--sidebar: 240px;
}
* { box-sizing: border-box; }
body {
	margin: 0;
	font-family: "Segoe UI", system-ui, sans-serif;
	color: var(--sc-ink);
	background: linear-gradient(180deg, #f0fdfa 0%, var(--sc-soft) 28%, #fff 100%);
	min-height: 100vh;
}
a { color: var(--sc-accent); }
.sc-shell { display: grid; grid-template-columns: var(--sidebar) 1fr; min-height: 100vh; }
.sc-side {
	background: linear-gradient(180deg, #0f766e 0%, #134e4a 100%);
	color: #ecfeff;
	padding: 20px 14px;
}
.sc-side__brand { font-weight: 800; letter-spacing: -0.02em; margin: 0 0 18px; padding: 0 8px; }
.sc-side__brand span { opacity: 0.85; font-weight: 600; font-size: 12px; display: block; }
.sc-side a {
	display: block;
	color: #ecfeff;
	text-decoration: none;
	padding: 10px 12px;
	border-radius: 8px;
	margin-bottom: 4px;
	font-size: 14px;
	font-weight: 600;
}
.sc-side a:hover, .sc-side a.is-active { background: rgba(255,255,255,0.14); }
.sc-main { padding: 24px 28px 48px; }
.sc-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; gap: 12px; }
.sc-top h1 { margin: 0; font-size: 1.45rem; letter-spacing: -0.02em; }
.sc-card {
	background: #fff;
	border: 1px solid var(--sc-line);
	border-radius: var(--sc-radius);
	padding: 18px;
	box-shadow: 0 1px 2px rgba(15,23,42,0.04);
	margin-bottom: 14px;
}
.sc-muted { color: var(--sc-muted); font-size: 13px; }
.sc-btn {
	display: inline-flex; align-items: center; justify-content: center;
	min-height: 38px; padding: 0 14px; border-radius: 8px; border: 1px solid transparent;
	font-weight: 700; font-size: 13px; cursor: pointer; text-decoration: none;
}
.sc-btn--primary { background: linear-gradient(135deg, var(--sc-accent), var(--sc-accent-2)); color: #fff; }
.sc-btn--ebay { background: var(--sc-ebay); color: #fff; }
.sc-btn--ghost { background: #fff; border-color: var(--sc-line); color: var(--sc-ink); }
.sc-btn--danger { background: #fff1f2; border-color: #fecdd3; color: var(--sc-bad); }
.sc-field { margin-bottom: 12px; }
.sc-field label { display: block; font-size: 12px; font-weight: 700; color: var(--sc-muted); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.04em; }
.sc-field input, .sc-field select {
	width: 100%; height: 42px; border: 1px solid var(--sc-line); border-radius: 8px; padding: 0 12px; background: var(--sc-soft);
}
.sc-alert { padding: 10px 12px; border-radius: 8px; margin-bottom: 12px; font-size: 13px; }
.sc-alert--err { background: #fff1f2; color: var(--sc-bad); border: 1px solid #fecdd3; }
.sc-alert--ok { background: #f0fdf4; color: var(--sc-ok); border: 1px solid #bbf7d0; }
.sc-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.sc-table th, .sc-table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--sc-line); vertical-align: top; }
.sc-pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.sc-pill--ok { background: #f0fdf4; color: var(--sc-ok); }
.sc-pill--bad { background: #fff1f2; color: var(--sc-bad); }
.sc-pill--muted { background: var(--sc-soft); color: var(--sc-muted); }
.sc-auth {
	min-height: 100vh; display: grid; place-items: center; padding: 24px;
	background:
		radial-gradient(600px 220px at 10% 0%, rgba(15,118,110,0.2), transparent 60%),
		radial-gradient(500px 200px at 90% 10%, rgba(0,100,210,0.12), transparent 55%),
		var(--sc-soft);
}
.sc-auth__card { width: min(420px, 100%); background: #fff; border: 1px solid var(--sc-line); border-radius: 14px; padding: 28px; box-shadow: 0 16px 40px rgba(15,23,42,0.08); }
.sc-auth__card h1 { margin: 0 0 8px; font-size: 1.35rem; }
.sc-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 860px) {
	.sc-shell { grid-template-columns: 1fr; }
	.sc-side { display: flex; flex-wrap: wrap; gap: 4px; }
	.sc-grid-2 { grid-template-columns: 1fr; }
}