:root {
  --bg: #0e1726;
  --bg-alt: #16223a;
  --panel: #1d2c4a;
  --text: #f1f4fb;
  --muted: #aab4cb;
  --accent: #4f9dff;
  --accent-hover: #79b6ff;
  --border: rgba(255, 255, 255, 0.10);
  --max: 1080px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header / nav */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.20);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.3px;
}
.brand:hover { text-decoration: none; color: var(--text); }
.brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  display: block;
}
.nav-links { display: flex; gap: 22px; }
.nav-links a {
  color: var(--muted);
  font-weight: 500;
  font-size: 15px;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  padding: 72px 0 40px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  margin: 0 0 12px;
  color: var(--text);
  letter-spacing: 0.3px;
}
.hero p.tagline {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto;
}

/* Guide list */
.guides {
  padding: 32px 0 72px;
}
.guides h2 {
  text-align: center;
  font-size: 26px;
  margin: 0 0 24px;
  color: var(--text);
}
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.guide-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.guide-card .card-icon {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  margin-bottom: 14px;
  display: block;
}
.guide-card h3 { margin: 0 0 8px; color: var(--accent); font-size: 19px; }
.guide-card p { margin: 0 0 16px; color: var(--muted); font-size: 15px; flex: 1; }
.guide-card .status {
  display: inline-block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  align-self: flex-start;
}

/* Generic content pages */
.page {
  padding: 48px 0 72px;
}
.page h1 {
  font-size: 34px;
  margin: 0 0 8px;
  color: var(--text);
}
.page h2 {
  font-size: 21px;
  margin: 28px 0 8px;
  color: var(--text);
}
.page p, .page li { color: var(--muted); }
.page .meta { color: var(--muted); font-size: 14px; margin-bottom: 24px; }

/* FAQ */
.faq details {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 10px;
}
.faq details[open] { border-color: var(--accent); }
.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "+";
  color: var(--accent);
  margin-right: 10px;
  font-weight: 700;
}
.faq details[open] summary::before { content: "−"; }
.faq p { margin: 10px 0 0; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 11px 20px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 15px;
}
.btn-primary { background: var(--accent); color: #07111e; }
.btn-primary:hover { background: var(--accent-hover); text-decoration: none; color: #07111e; }

/* Form */
form.contact {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
  margin-top: 16px;
}
.contact label {
  display: block;
  font-weight: 600;
  margin: 10px 0 6px;
  color: var(--text);
}
.contact input, .contact textarea {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  font: inherit;
}
.contact input:focus, .contact textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.contact textarea { min-height: 160px; resize: vertical; }
.contact .row-actions {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.form-status { font-size: 14px; color: var(--muted); }
.form-status.ok { color: #8bd4a4; }
.form-status.err { color: #f08a8a; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}
.site-footer a { color: var(--muted); margin: 0 8px; }
.site-footer a:hover { color: var(--accent); text-decoration: none; }