/* Sterling Accounting — base.css */
:root {
  --bg: #0b0d12;
  --bg-elev: #11141b;
  --bg-elev-2: #161a22;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-strong: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e6e8ee;
  --text-muted: #8b94a7;
  --text-dim: #5a6477;
  --accent: #6366f1;
  --accent-2: #8b5cf6;
  --accent-soft: rgba(99, 102, 241, 0.14);
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow: 0 12px 32px -12px rgba(0,0,0,.55), 0 2px 6px rgba(0,0,0,.3);
  --shadow-lg: 0 30px 80px -20px rgba(0,0,0,.7), 0 10px 24px rgba(0,0,0,.35);

  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;

  --transition: 180ms cubic-bezier(.4,0,.2,1);
}

.theme-light {
  --bg: #f6f7fb;
  --bg-elev: #ffffff;
  --bg-elev-2: #f1f3f9;
  --surface: rgba(15, 23, 42, 0.03);
  --surface-strong: rgba(15, 23, 42, 0.06);
  --border: rgba(15, 23, 42, 0.10);
  --border-strong: rgba(15, 23, 42, 0.18);
  --text: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  --accent-soft: rgba(99, 102, 241, 0.12);
  --shadow-sm: 0 1px 2px rgba(15,23,42,.06);
  --shadow: 0 12px 32px -12px rgba(15,23,42,.18), 0 2px 6px rgba(15,23,42,.08);
  --shadow-lg: 0 30px 80px -20px rgba(15,23,42,.22), 0 10px 24px rgba(15,23,42,.12);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, var(--accent-soft), transparent 60%),
    radial-gradient(ellipse 60% 50% at 100% 0%, rgba(139, 92, 246, 0.08), transparent 60%),
    var(--bg);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--accent-2); }

h1, h2, h3, h4 { margin: 0 0 .5em; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: 2.4rem; line-height: 1.15; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; color: var(--text); }
small, .muted { color: var(--text-muted); }

::selection { background: var(--accent); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-strong); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }

.hidden { display: none !important; }

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulse-soft {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-soft); }
  50% { box-shadow: 0 0 0 12px transparent; }
}

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .7s, transform .7s; }
.reveal.is-visible { opacity: 1; transform: none; }