/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --clr-bg:        #0d0d0d;
  --clr-surface:   #141414;
  --clr-border:    #2a2a2a;
  --clr-text:      #e8e6e1;
  --clr-muted:     #888580;
  --clr-accent:    #c9a84c;      /* warm gold — pencil/paper feel */
  --clr-accent-dk: #a8893a;

  --ff-sans:  'Segoe UI', system-ui, -apple-system, sans-serif;
  --ff-serif: Georgia, 'Times New Roman', serif;

  --radius:  6px;
  --shadow:  0 4px 24px rgba(0,0,0,.55);

  --max-w:   640px;
}

html {
  font-size: 16px;
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--ff-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Layout ───────────────────────────────────────────────── */
body {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
}

.wrapper {
  width: 100%;
  max-width: var(--max-w);
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  text-align: center;
}

.lock-icon {
  font-size: 2.25rem;
  color: var(--clr-accent);
  line-height: 1;
  margin-bottom: .75rem;
  display: block;
  letter-spacing: 0;
}

.site-header h1 {
  font-family: var(--ff-serif);
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: -.02em;
  color: #fff;
  line-height: 1.15;
}

.tagline {
  margin-top: .5rem;
  font-size: .95rem;
  color: var(--clr-accent);
  font-style: italic;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* ── Main content ─────────────────────────────────────────── */
.content {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.source-links {
  font-size: 0.85rem;
  color: var(--clr-text);
  text-align: center;
  margin-top: 1.25rem;
  opacity: 0.7;
}

.description {
  font-size: 1.05rem;
  color: var(--clr-text);
  text-align: center;
  max-width: 52ch;
  margin-inline: auto;
  line-height: 1.75;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn-group {
  display: flex;
  flex-direction: column;
  gap: .875rem;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  padding: .9rem 1.5rem;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  transition: background .18s ease, color .18s ease, transform .12s ease,
              box-shadow .18s ease;
  cursor: pointer;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: 3px;
}

.btn:active {
  transform: scale(.97);
}

/* Primary */
.btn--primary {
  background: var(--clr-accent);
  color: #0d0d0d;
  box-shadow: 0 2px 12px rgba(201,168,76,.25);
}

.btn--primary:hover {
  background: #dbbf6a;
  box-shadow: 0 4px 18px rgba(201,168,76,.4);
}

/* Secondary */
.btn--secondary {
  background: transparent;
  color: var(--clr-accent);
  border: 1.5px solid var(--clr-accent);
}

.btn--secondary:hover {
  background: rgba(201,168,76,.08);
  border-color: #dbbf6a;
  color: #dbbf6a;
}

.btn__arrow {
  font-size: 1.1em;
  line-height: 1;
}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  font-size: .8rem;
  color: var(--clr-muted);
}

/* ── Responsive: wider screens ────────────────────────────── */
@media (min-width: 480px) {
  .btn-group {
    flex-direction: row;
  }

  .btn {
    flex: 1;
  }
}