/* UNDR design: black + white, minimalist, undr.zone aesthetic */
:root {
  --bg: #000000;
  --text: #ffffff;
  --text-muted: rgba(255,255,255,0.65);
  --error: #f88;
  --font: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --letter-spacing: 0.12em;
  --letter-spacing-tight: 0.05em;
  --line-height: 1.4;
  --space: 1.5rem;
  --space-lg: 2.5rem;
  --tap-min: 44px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
}

.brand-line {
  width: 100%;
  max-width: 12rem;
  height: 2px;
  background: var(--text);
  margin: 0 auto var(--space);
}

h1, h2, .heading {
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing);
  font-weight: 700;
}

h1 { font-size: 1.75rem; margin: 0 0 var(--space); }
h2 { font-size: 1.25rem; margin: 0 0 var(--space); }

.layout-center {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space);
  text-align: center;
}

.layout-center.text-left { text-align: left; }

a {
  color: var(--text);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

input, button, select, textarea {
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--text);
  padding: 0.75rem 1rem;
  min-height: var(--tap-min);
}

input::placeholder, textarea::placeholder {
  color: rgba(255,255,255,0.5);
}

button {
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-tight);
  font-weight: 600;
  min-height: var(--tap-min);
  padding: 0.75rem 1.5rem;
}

button:hover { opacity: 0.9; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

.form-group {
  margin-bottom: var(--space);
  text-align: left;
}

.form-group label {
  display: block;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-tight);
  font-size: 0.85rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 0.75rem;
  border-bottom: 1px solid rgba(255,255,255,0.2);
}

th {
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-tight);
  font-size: 0.85rem;
}

.list-unstyled { list-style: none; padding: 0; margin: 0; }
.mt { margin-top: var(--space); }
.mt-lg { margin-top: var(--space-lg); }
.mb { margin-bottom: var(--space); }