:root {
  --color-primary: #1a1a1a;
  --color-accent: #2b2b2b;
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-surface: #f9fafb;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --max-width: 720px;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
header {
  padding: 2rem 0;
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  width: 48px;
  height: 48px;
}

.header-text h1 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.back-link {
  display: inline-block;
  margin-top: 0.25rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  text-decoration: none;
}

.back-link:hover {
  color: var(--color-text);
}

/* Main content */
main {
  padding: 3.5rem 0 4rem;
}

section {
  margin-bottom: 2.5rem;
}

section:last-child {
  margin-bottom: 0;
}

h2 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

/* Details table */
.details {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
}

.detail-row {
  display: flex;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-label {
  flex: 0 0 160px;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.detail-value {
  flex: 1;
  font-size: 0.875rem;
  font-weight: 500;
}

.detail-value a {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.detail-value a:hover {
  color: var(--color-muted);
}

.email-img {
  height: 1rem;
  width: auto;
  vertical-align: middle;
}

/* Description */
.description {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 2rem;
}

.description a {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.description a:hover {
  color: var(--color-muted);
}

.brand-logo {
  display: block;
  max-width: 180px;
  height: auto;
  margin-bottom: 1rem;
}

/* Footer */
footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 600px) {
  .detail-row {
    flex-direction: column;
    gap: 0.25rem;
  }

  .detail-label {
    flex: none;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
  }
}