/* Equline Group — shared design system
   Dark, glassmorphism, neon-purple accent. Used by index.html and invoice.html chrome
   (the printable invoice document itself stays light/print-friendly — see invoice.html). */

:root {
  --bg: #09090b;           /* zinc-950 */
  --bg-elev: #131316;      /* slightly lifted panel base, before glass */
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f4f5;         /* zinc-100 */
  --text-dim: #a1a1aa;     /* zinc-400 */
  --text-faint: #71717a;   /* zinc-500 */
  --accent: #a855f7;       /* purple-500 */
  --accent-bright: #c084fc;/* purple-400 */
  --accent-dim: #7e22ce;   /* purple-700 */
  --radius: 12px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
}

body {
  position: relative;
  overflow-x: hidden;
}

/* Ambient neon-purple glow blobs, placed per-page via .glow-a / .glow-b on a wrapper */
.glow-a, .glow-b {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}
.glow-a {
  width: 560px; height: 560px;
  top: -180px; left: -160px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.35), transparent 70%);
}
.glow-b {
  width: 480px; height: 480px;
  bottom: -200px; right: -140px;
  background: radial-gradient(circle, rgba(192, 132, 252, 0.22), transparent 70%);
}

/* Glassmorphism container */
.glass {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.045);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.06) inset,
    0 20px 60px rgba(0, 0, 0, 0.5);
}

.glass-tight {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

a { color: var(--accent-bright); text-decoration: none; }
a:hover { text-decoration: underline; }

button, .btn {
  font-family: var(--font);
  font-weight: 600;
  font-size: 14px;
  border-radius: 9px;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 11px 18px;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}
button:hover, .btn:hover { border-color: var(--accent); }
button:active, .btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent-dim), var(--accent));
  border: 1px solid var(--accent-bright);
  box-shadow: 0 0 0 1px rgba(168, 85, 247, 0.15), 0 8px 24px rgba(168, 85, 247, 0.35);
}
.btn-primary:hover {
  box-shadow: 0 0 0 1px rgba(192, 132, 252, 0.35), 0 8px 30px rgba(192, 132, 252, 0.5);
}

input, textarea, select {
  font-family: var(--font);
  font-size: 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  width: 100%;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.18);
}
input::placeholder, textarea::placeholder { color: var(--text-faint); }

label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.text-dim { color: var(--text-dim); }
.text-faint { color: var(--text-faint); }