/* ── Header ───────────────────────────────────────────────────────────────────── */
.site-header {
  background-color: var(--color-black);
  border-bottom: 3px solid var(--color-red);
  padding: var(--space-6) 0;
}

.header-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header-logo {
  width: 72px;
  height: 72px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(227, 0, 15, 0.45));
  transition: filter var(--transition);
}

.header-logo:hover {
  filter: drop-shadow(0 0 18px rgba(227, 0, 15, 0.8));
}

.header-title h1 {
  font-size: 2.4rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-white);
}

.header-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ── Navigation ───────────────────────────────────────────────────────────────── */
.site-nav {
  background-color: var(--color-red);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 3px 20px rgba(0, 0, 0, 0.6);
}

.nav-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-list {
  display: flex;
  width: 100%;
}

.nav-link {
  display: block;
  padding: var(--space-4) var(--space-6);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: background-color var(--transition), color var(--transition);
}

.nav-link:hover,
.nav-link.active {
  background-color: rgba(0, 0, 0, 0.25);
  color: var(--color-white);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-3);
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  transition: var(--transition);
}

/* ── Main ─────────────────────────────────────────────────────────────────────── */
.site-main {
  flex: 1;
}

/* ── Page banner ──────────────────────────────────────────────────────────────── */
.page-banner {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  background: var(--color-black);
  border-bottom: 3px solid var(--color-red);
  box-shadow: 0 4px 30px rgba(227, 0, 15, 0.12);
  margin-bottom: var(--space-16);
}

.page-banner h2 {
  font-size: 2.4rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.page-banner p {
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  font-size: 0.88rem;
  text-transform: uppercase;
}

/* ── Footer ───────────────────────────────────────────────────────────────────── */
.site-footer {
  background-color: var(--color-black);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  text-align: center;
  padding: var(--space-8) 0;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
}

/* ── Responsive ───────────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .header-logo {
    width: 48px;
    height: 48px;
  }

  .header-title h1 {
    font-size: 1.4rem;
  }

  .header-subtitle {
    font-size: 0.65rem;
  }

  .page-banner {
    padding: var(--space-10) var(--space-6);
    margin-bottom: var(--space-10);
  }

  .page-banner h2 {
    font-size: 1.6rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-red);
    box-shadow: var(--shadow-md);
    width: 100%;
  }

  .nav-list--open {
    display: flex;
  }

  .nav-list .nav-link {
    padding: var(--space-4) var(--space-6);
    width: 100%;
    box-sizing: border-box;
  }

  .nav-auth-item {
    margin-left: 0;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
  }

  .nav-username {
    padding: var(--space-3) var(--space-6);
    font-size: 0.68rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
  }

  .nav-link--login,
  .nav-link--logout,
  .nav-link--codes {
    width: 100%;
    text-align: left;
    box-sizing: border-box;
  }
}