/*
 * PierForge — Navigation styles
 */

.pf-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--pf-nav-h);
  background: rgba(10,11,13,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--pf-border);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.pf-nav__inner {
  max-width: var(--pf-max-w);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--pf-space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--pf-space-8);
}

.pf-nav__logo {
  display: flex;
  align-items: center;
  gap: var(--pf-space-3);
  color: var(--pf-text) !important;
  font-family: var(--pf-font-display);
  font-size: var(--pf-text-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}

.pf-nav__logo-mark {
  width: 28px;
  height: 28px;
  background: var(--pf-blue-600);
  border-radius: var(--pf-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.pf-nav__links {
  display: flex;
  align-items: center;
  gap: var(--pf-space-6);
  list-style: none;
}

.pf-nav__links a {
  color: var(--pf-text-muted);
  font-size: var(--pf-text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  transition: color var(--pf-dur-fast);
  white-space: nowrap;
}

.pf-nav__links a:hover,
.pf-nav__links a.active { color: var(--pf-text); }

.pf-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--pf-space-3);
  flex-shrink: 0;
}

/* Language switcher */
.pf-lang {
  display: flex;
  align-items: center;
  gap: 1px;
  background: var(--pf-graphite-700);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius);
  padding: 2px;
}

.pf-lang__btn {
  background: none;
  border: none;
  color: var(--pf-text-dim);
  font-size: var(--pf-text-xs);
  font-weight: 600;
  cursor: pointer;
  padding: 3px 7px;
  border-radius: var(--pf-radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: all var(--pf-dur-fast);
}

.pf-lang__btn:hover { color: var(--pf-text-muted); }
.pf-lang__btn.active {
  background: var(--pf-graphite-500);
  color: var(--pf-text);
}

/* CTA button */
.pf-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--pf-space-2);
  font-size: var(--pf-text-sm);
  font-weight: 600;
  padding: 7px 18px;
  border-radius: var(--pf-radius);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--pf-dur-base) var(--pf-ease);
  text-decoration: none;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.pf-btn--primary {
  background: var(--pf-blue-500);
  color: #fff;
  border-color: var(--pf-blue-500);
}

.pf-btn--primary:hover {
  background: var(--pf-blue-600);
  border-color: var(--pf-blue-600);
  color: #fff;
  box-shadow: var(--pf-shadow-blue);
}

.pf-btn--outline {
  background: transparent;
  color: var(--pf-text-muted);
  border-color: var(--pf-border-light);
}

.pf-btn--outline:hover {
  color: var(--pf-text);
  border-color: var(--pf-graphite-300);
}

.pf-btn--lg {
  font-size: var(--pf-text-base);
  padding: 11px 28px;
}

/* Mobile hamburger */
.pf-nav__hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--pf-text-muted);
  cursor: pointer;
  padding: var(--pf-space-2);
}

/* Mobile drawer */
.pf-nav__drawer {
  display: none;
  position: fixed;
  top: var(--pf-nav-h);
  left: 0; right: 0;
  background: var(--pf-graphite-900);
  border-bottom: 1px solid var(--pf-border);
  padding: var(--pf-space-6);
  flex-direction: column;
  gap: var(--pf-space-4);
  z-index: 999;
}

.pf-nav__drawer.open { display: flex; }
.pf-nav__drawer a {
  color: var(--pf-text-muted);
  font-size: var(--pf-text-base);
  font-weight: 500;
  padding: var(--pf-space-2) 0;
  border-bottom: 1px solid var(--pf-border);
}

@media (max-width: 900px) {
  .pf-nav__links { display: none; }
  .pf-nav__hamburger { display: block; }
  .pf-nav__actions .pf-btn { display: none; }
}

/* Page body padding */
.pf-page { padding-top: var(--pf-nav-h); }

/* Containers */
.pf-container {
  max-width: var(--pf-max-w);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--pf-space-6);
}

@media (min-width: 1024px) {
  .pf-container { padding: 0 var(--pf-space-8); }
}

/* Section spacing */
.pf-section { padding: var(--pf-space-20) 0; }
.pf-section--sm { padding: var(--pf-space-12) 0; }
.pf-section--lg { padding: calc(var(--pf-space-20) * 1.4) 0; }

/* Section labels */
.pf-label {
  display: inline-flex;
  align-items: center;
  gap: var(--pf-space-2);
  font-size: var(--pf-text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pf-blue-400);
  margin-bottom: var(--pf-space-4);
}

.pf-label::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 2px;
  background: var(--pf-blue-500);
}

/* Headings */
.pf-h1 {
  font-family: var(--pf-font-display);
  font-size: clamp(2.2rem, 5vw, var(--pf-text-5xl));
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: var(--pf-text);
}

.pf-h2 {
  font-family: var(--pf-font-display);
  font-size: clamp(1.75rem, 3.5vw, var(--pf-text-3xl));
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--pf-text);
}

.pf-h3 {
  font-family: var(--pf-font-display);
  font-size: var(--pf-text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--pf-text);
}

/* Cards */
.pf-card {
  background: var(--pf-bg-card);
  border: 1px solid var(--pf-border);
  border-radius: var(--pf-radius-lg);
  padding: var(--pf-space-6);
  transition: border-color var(--pf-dur-base);
}

.pf-card:hover { border-color: var(--pf-border-light); }
.pf-card--blue:hover { border-color: var(--pf-blue-600); }

/* Data table */
.pf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--pf-text-sm);
}

.pf-table th {
  text-align: left;
  padding: var(--pf-space-3) var(--pf-space-4);
  color: var(--pf-text-dim);
  font-size: var(--pf-text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--pf-border);
  background: var(--pf-graphite-800);
}

.pf-table td {
  padding: var(--pf-space-3) var(--pf-space-4);
  color: var(--pf-text-muted);
  border-bottom: 1px solid var(--pf-graphite-800);
  vertical-align: middle;
}

.pf-table tr:last-child td { border-bottom: none; }
.pf-table tr:hover td { background: rgba(255,255,255,.02); }

/* Badge */
.pf-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--pf-radius-sm);
}

.pf-badge--blue   { background: rgba(37,99,235,.15); color: var(--pf-blue-300); border: 1px solid rgba(37,99,235,.3); }
.pf-badge--amber  { background: rgba(245,158,11,.15); color: var(--pf-amber-300); border: 1px solid rgba(245,158,11,.3); }
.pf-badge--green  { background: var(--pf-green-dim); color: var(--pf-green); border: 1px solid rgba(34,197,94,.3); }
.pf-badge--red    { background: var(--pf-red-dim); color: var(--pf-red); border: 1px solid rgba(239,68,68,.3); }
.pf-badge--gray   { background: var(--pf-graphite-700); color: var(--pf-text-dim); border: 1px solid var(--pf-border); }

/* Footer */
.pf-footer {
  background: var(--pf-graphite-900);
  border-top: 1px solid var(--pf-border);
  padding: var(--pf-space-16) 0 var(--pf-space-8);
}

.pf-footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--pf-space-12);
  margin-bottom: var(--pf-space-12);
}

.pf-footer__brand .pf-nav__logo { margin-bottom: var(--pf-space-4); }
.pf-footer__tagline {
  color: var(--pf-text-dim);
  font-size: var(--pf-text-sm);
  line-height: 1.65;
  margin-bottom: var(--pf-space-5);
  max-width: 280px;
}

.pf-footer__col-label {
  font-size: var(--pf-text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pf-text-muted);
  margin-bottom: var(--pf-space-4);
}

.pf-footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--pf-space-3);
}

.pf-footer__links a {
  color: var(--pf-text-dim);
  font-size: var(--pf-text-sm);
  transition: color var(--pf-dur-fast);
}

.pf-footer__links a:hover { color: var(--pf-text-muted); }

.pf-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--pf-space-6);
  border-top: 1px solid var(--pf-border);
  gap: var(--pf-space-4);
  flex-wrap: wrap;
}

.pf-footer__copy {
  color: var(--pf-text-dim);
  font-size: var(--pf-text-xs);
}

.pf-footer__legal {
  display: flex;
  gap: var(--pf-space-5);
}

.pf-footer__legal a {
  color: var(--pf-text-dim);
  font-size: var(--pf-text-xs);
}

.pf-footer__legal a:hover { color: var(--pf-text-muted); }

.pf-cf-link {
  display: inline-flex;
  align-items: center;
  gap: var(--pf-space-1);
  font-size: var(--pf-text-xs);
  color: var(--pf-text-dim);
}

.pf-cf-link strong { color: var(--pf-text-muted); }

@media (max-width: 768px) {
  .pf-footer__grid { grid-template-columns: 1fr 1fr; gap: var(--pf-space-8); }
  .pf-footer__brand { grid-column: 1 / -1; }
}