:root {
  --bg: #ffffff;
  --bg-alt: #f5f6f8;
  --text: #1c1e21;
  --text-muted: #5b5f66;
  --accent: #2d6cdf;
  --accent-dark: #1e4fad;
  --border: #e2e4e8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --bg-alt: #1c1f24;
    --text: #f0f1f3;
    --text-muted: #a3a8b0;
    --accent: #5b8def;
    --accent-dark: #7fa5f2;
    --border: #2b2f36;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px;
}

a { color: var(--accent); }

.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  flex-wrap: wrap;
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.95rem;
}

nav a:hover { color: var(--accent); }

.hero {
  padding: 60px 0 40px;
  text-align: center;
}

.hero h1 {
  font-size: 2.4rem;
  margin: 0 0 10px;
}

.tagline {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin: 0;
}

.section {
  padding: 48px 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section h2 {
  margin-top: 0;
  font-size: 1.5rem;
}

.feature-list, .steps {
  padding-left: 20px;
}

.feature-list li, .steps li {
  margin-bottom: 12px;
}

.requirements {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.support-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 24px;
}

.support-form label {
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 10px;
}

.support-form input,
.support-form textarea {
  font: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}

.support-form input:focus,
.support-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.hidden-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.support-form button {
  margin-top: 16px;
  align-self: flex-start;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 11px 22px;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.support-form button:hover {
  background: var(--accent-dark);
}

.support-form button:disabled {
  opacity: 0.6;
  cursor: default;
}

.form-status {
  min-height: 1.4em;
  font-size: 0.9rem;
}

.form-status.success { color: #1a8a3d; }
.form-status.error { color: #c53030; }

.alt-contact {
  margin-top: 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 30px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer p { margin: 4px 0; }