/* ALWAYS DARK. Matte, low-contrast, readable. */
:root {
  --bg-0: #0b0f14;
  --bg-1: #0a0f17;
  --bg-2: #0e141c;

  --surface: rgba(255, 255, 255, 0.06);
  --surface-2: rgba(255, 255, 255, 0.085);
  --border: rgba(255, 255, 255, 0.10);

  --text: rgba(255, 255, 255, 0.88);
  --muted: rgba(255, 255, 255, 0.62);
  --faint: rgba(255, 255, 255, 0.50);

  --link: rgba(170, 205, 255, 0.92);
  --link-hover: rgba(200, 225, 255, 0.98);

  --shadow: 0 10px 30px rgba(0,0,0,0.45);
  --radius: 16px;
  --maxw: 980px;

  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --base: 18px; /* slightly larger for comfort */
  --lh: 1.55;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

html {
  color-scheme: dark;
  font-size: var(--base);
}

body {
  margin: 0;
  font-family: var(--font);
  line-height: var(--lh);
  color: var(--text);

  /* Matte, subtle gradient background */
  background:
    radial-gradient(1200px 800px at 12% 12%, rgba(120, 160, 210, 0.10), rgba(0,0,0,0) 60%),
    radial-gradient(900px 700px at 88% 20%, rgba(120, 210, 190, 0.06), rgba(0,0,0,0) 55%),
    linear-gradient(135deg, var(--bg-1), var(--bg-0) 35%, var(--bg-2));
}

/* Accessibility */
.skip-link {
  position: absolute;
  left: 12px;
  top: 10px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.10);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  transform: translateY(-140%);
}
.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid rgba(170,205,255,0.55);
  outline-offset: 2px;
}

/* Layout */
.container {
  width: min(var(--maxw), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  padding: 28px 0 18px;
}

.site-header .container {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
}

.brand .name {
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.brand .tagline {
  margin-top: 6px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--muted);
}

.brand .meta {
  margin-top: 8px;
  font-size: 0.98rem;
  color: var(--faint);
}

.top-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  margin-top: 4px;
}

a {
  color: var(--link);
  text-decoration: none;
}
a:hover { color: var(--link-hover); text-decoration: underline; }
a:focus {
  outline: 2px solid rgba(170,205,255,0.55);
  outline-offset: 2px;
  border-radius: 8px;
}

/* Cards */
.card {
  background: linear-gradient(180deg, var(--surface), rgba(255,255,255,0.045));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.card + .card { margin-top: 18px; }

h1, h2, h3 {
  margin: 0 0 10px 0;
  letter-spacing: 0.2px;
}

h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: rgba(255,255,255,0.90);
}

p { margin: 10px 0; color: var(--text); }

.emphasis {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.90);
}

.note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

ul {
  margin: 10px 0 0 0;
  padding-left: 20px;
  color: var(--text);
}

li { margin: 6px 0; }

.grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 860px) {
  .grid { grid-template-columns: 1fr 1fr; }
}

/* Contact */
.contact .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 10px;
}

@media (min-width: 680px) {
  .contact .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.label {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 4px;
}

.value {
  font-weight: 600;
  word-break: break-word;
}

.mono {
  font-family: var(--mono);
  color: rgba(255,255,255,0.86);
}

/* Footer */
.site-footer {
  padding: 26px 0 40px;
  margin-top: 22px;
  color: var(--muted);
}

.site-footer .container {
  display: flex;
  gap: 10px;
  justify-content: space-between;
  flex-wrap: wrap;
}

.muted { color: var(--muted); }

/* Screen-reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}