/* design-system-v3.css — Vercel/AssetShare-style minimal SaaS */
:root{
  /* surface */
  --bg: #fafaf9;
  --bg-alt: #f4f4f2;
  --surface: #ffffff;
  --surface-2: #f7f7f5;

  /* ink */
  --ink: #0a0a0a;
  --ink-2: #1a1a1a;
  --text: #171717;
  --text-2: #525252;
  --text-3: #737373;
  --text-4: #a3a3a3;

  /* line */
  --line: #e7e5e4;
  --line-2: #d6d3d1;
  --line-strong: #0a0a0a;

  /* accent — restrained; single black CTA + one hue for live state */
  --accent: #0a0a0a;
  --accent-ink: #ffffff;
  --live: #16a34a;

  /* radii */
  --r-sm: 6px;
  --r: 8px;
  --r-lg: 12px;

  /* shadows */
  --shadow-card: 0 1px 2px rgba(10,10,10,.04), 0 1px 0 rgba(10,10,10,.02);
  --shadow-card-hover: 0 2px 6px rgba(10,10,10,.06), 0 1px 0 rgba(10,10,10,.03);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text)}
body{
  font-family:'Inter',ui-sans-serif,system-ui,-apple-system,sans-serif;
  font-feature-settings:"ss01","cv11";
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace;font-feature-settings:"zero","tnum"}
.tnum{font-variant-numeric:tabular-nums}
::selection{background:var(--ink);color:#fff}
a{color:inherit;text-decoration:none}
button{font-family:inherit}

/* bracketed mono label */
.bracket{
  font-family:'JetBrains Mono',ui-monospace,monospace;
  font-size:11px;letter-spacing:.04em;text-transform:uppercase;
  color:var(--text-3);
}
.bracket::before{content:"[ "}
.bracket::after{content:" ]"}

/* typography */
h1,h2,h3,h4{margin:0;letter-spacing:-0.035em;font-weight:500}
h1{font-size:clamp(44px, 6.5vw, 84px); line-height:1; letter-spacing:-0.04em}
h2{font-size:clamp(34px, 4.5vw, 56px); line-height:1.04; letter-spacing:-0.035em}
h3{font-size:20px;line-height:1.2;letter-spacing:-0.01em}
p{margin:0}

/* buttons */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:var(--r);
  font-size:13.5px;font-weight:500;letter-spacing:-0.005em;
  border:1px solid var(--line-2);
  background:var(--surface);color:var(--text);
  cursor:default;transition:background .15s, border-color .15s, transform .15s;
}
.btn:hover{background:var(--surface-2);border-color:var(--ink-2)}
.btn-primary{
  background:var(--ink);color:#fff;border-color:var(--ink);
}
.btn-primary:hover{background:#262626;border-color:#262626;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--text-2)}
.btn-ghost:hover{color:var(--text);background:var(--surface-2)}

/* card */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
}
.card:hover{box-shadow:var(--shadow-card-hover)}

/* hairline dotted */
.hr{height:1px;background:var(--line);border:0;margin:0}
.hr-dot{height:1px;background:repeating-linear-gradient(90deg, var(--line-2) 0 2px, transparent 2px 6px);border:0}