/* ============================================================
   COMPONENTS v2 - Tactical tech UI components
   ============================================================ */

/* --- Typography --- */
.heading-1 {
  font-family: var(--font-body);
  font-size: var(--text-4xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  color: var(--text-primary);
  letter-spacing: -0.03em;
}
.heading-2 {
  font-family: var(--font-body);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
}
.heading-3 {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-snug);
}
.subheading {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-accent);
}
.body-lg {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  font-weight: var(--weight-light);
}
.mono-sm {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

@media (min-width: 768px) {
  .heading-1 { font-size: var(--text-5xl); }
  .heading-2 { font-size: var(--text-4xl); }
}
@media (min-width: 1024px) {
  .heading-1 { font-size: var(--text-6xl); }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: 0.04em;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--duration-normal) var(--ease-default);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--brand-accent);
  color: var(--brand-primary);
  border-color: var(--brand-accent);
}
.btn--primary:hover {
  box-shadow: var(--glow-accent-strong);
  color: var(--brand-primary);
  transform: translateY(-1px);
}
.btn--primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.15), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}
.btn--primary:hover::after {
  transform: translateX(100%);
}

.btn--outline {
  background: transparent;
  color: var(--text-accent);
  border-color: var(--border-accent);
}
.btn--outline:hover {
  background: var(--brand-accent-dim);
  border-color: var(--brand-accent);
  color: var(--text-accent);
  box-shadow: var(--glow-accent);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: transparent;
}
.btn--ghost:hover {
  color: var(--text-accent);
  background: var(--brand-accent-dim);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

/* --- Cards --- */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  position: relative;
  transition: all var(--duration-normal) var(--ease-default);
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 1px;
  background: linear-gradient(to right, transparent, var(--border-accent), transparent);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-default);
}
.card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--glow-accent);
  transform: translateY(-2px);
}
.card:hover::before { opacity: 1; }

.card__icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--brand-accent-dim);
  color: var(--text-accent);
  margin-bottom: var(--space-4);
  border: 1px solid var(--border-accent);
}
.card__title {
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
  color: var(--text-primary);
}
.card__description {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  font-weight: var(--weight-light);
}

/* --- Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: var(--weight-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  background: var(--brand-accent-dim);
  color: var(--text-accent);
  border: 1px solid var(--border-accent);
}
.badge--warm {
  background: var(--brand-warm-dim);
  color: var(--text-warm);
  border-color: rgba(240,180,41,0.2);
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-sticky);
  background: rgba(7, 11, 20, 0.8);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--duration-slow) var(--ease-default),
              box-shadow var(--duration-normal) var(--ease-default);
}
[data-theme="light"] .site-header {
  background: rgba(255,255,255,0.85);
}
.site-header--scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  border-bottom-color: var(--border-accent);
}

.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}

.site-header__logo {
  display: flex; align-items: center; gap: var(--space-3);
  text-decoration: none; color: var(--text-primary);
}
.site-header__logo-mark {
  width: 36px; height: 36px;
  position: relative;
}
.site-header__logo-text {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.site-header__logo-text span { color: var(--text-accent); }

/* Nav */
.main-nav {
  display: none; list-style: none; gap: var(--space-1);
}
.main-nav__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast), background var(--duration-fast);
}
.main-nav__link:hover, .main-nav__link--active {
  color: var(--text-accent);
  background: var(--brand-accent-dim);
}

@media (min-width: 1024px) { .main-nav { display: flex; } }

.site-header__actions { display: flex; align-items: center; gap: var(--space-2); }

/* Mobile menu */
.mobile-menu-btn {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; background: none; border: none;
  color: var(--text-primary); cursor: pointer; border-radius: var(--radius-sm);
}
.mobile-menu-btn:hover { background: var(--brand-accent-dim); }
@media (min-width: 1024px) { .mobile-menu-btn { display: none; } }

.mobile-nav {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-overlay);
  background: var(--bg-body);
  padding: var(--space-4);
  padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}
.mobile-nav--open { display: block; }
.mobile-nav__list { list-style: none; }
.mobile-nav__link {
  display: block;
  padding: var(--space-5) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-default);
  -webkit-tap-highlight-color: transparent;
}
.mobile-nav__link:hover,
.mobile-nav__link:active { color: var(--text-accent); }

/* --- Theme Toggle --- */
.theme-toggle {
  display: inline-flex; align-items: center;
  background: var(--bg-surface); border: 1px solid var(--border-default);
  border-radius: var(--radius-full); padding: 2px; gap: 2px;
}
.theme-toggle__btn {
  display: flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border: none; background: transparent;
  border-radius: var(--radius-full); cursor: pointer;
  color: var(--text-muted); font-size: var(--text-sm);
  transition: all var(--duration-fast);
}
.theme-toggle__btn:hover { color: var(--text-primary); }
.theme-toggle__btn--active {
  background: var(--brand-accent-dim);
  color: var(--text-accent);
  box-shadow: var(--glow-accent);
}

/* --- Footer --- */
.site-footer {
  background: var(--brand-deep);
  border-top: 1px solid var(--border-default);
  padding: var(--space-16) 0 var(--space-8);
  color: var(--text-secondary);
}
[data-theme="light"] .site-footer {
  background: #0f172a;
  color: #94a3b8;
}
.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--text-accent); }

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-default);
  color: var(--text-muted);
  transition: all var(--duration-fast) var(--ease-default);
}
.social-link:hover {
  color: var(--text-accent);
  border-color: var(--border-accent);
  background: var(--brand-accent-dim);
  box-shadow: var(--glow-accent);
}

.site-footer__grid {
  display: grid; grid-template-columns: 1fr;
  gap: var(--space-10); margin-bottom: var(--space-12);
}
@media (min-width: 768px) {
  .site-footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.site-footer__heading {
  font-family: var(--font-mono); font-size: 0.6875rem;
  font-weight: var(--weight-semibold); text-transform: uppercase;
  letter-spacing: 0.15em; color: var(--text-muted); margin-bottom: var(--space-4);
}
.site-footer__list { list-style: none; display: flex; flex-direction: column; gap: var(--space-2); }
.site-footer__list a { font-size: var(--text-sm); }

.site-footer__bottom {
  border-top: 1px solid var(--border-default);
  padding-top: var(--space-8);
  display: flex; flex-direction: column; gap: var(--space-4);
  align-items: center; text-align: center;
}
.site-footer__bottom p { font-size: var(--text-xs); color: var(--text-muted); }
@media (min-width: 768px) {
  .site-footer__bottom { flex-direction: row; justify-content: space-between; text-align: left; }
}

/* --- Section Header --- */
.section-header { max-width: 680px; margin-bottom: var(--space-12); }
.section-header--centered { margin-left: auto; margin-right: auto; text-align: center; }
.section-header .subheading { margin-bottom: var(--space-3); }
.section-header .heading-2 { margin-bottom: var(--space-4); }
.section-header .body-lg { margin-top: var(--space-3); }

/* --- Stat Block --- */
.stat { text-align: center; padding: var(--space-6); }
.stat__value {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--weight-bold);
  color: var(--text-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}
.stat__label {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: var(--weight-medium);
}

/* --- Animations --- */
.animate-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slower) var(--ease-default),
              transform var(--duration-slower) var(--ease-default);
}
.animate-in--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays for grids */
.grid .animate-in:nth-child(1) { transition-delay: 0ms; }
.grid .animate-in:nth-child(2) { transition-delay: 80ms; }
.grid .animate-in:nth-child(3) { transition-delay: 160ms; }
.grid .animate-in:nth-child(4) { transition-delay: 240ms; }
.grid .animate-in:nth-child(5) { transition-delay: 320ms; }
.grid .animate-in:nth-child(6) { transition-delay: 400ms; }

/* Scan line hover effect */
.scan-line {
  position: relative;
  overflow: hidden;
}
.scan-line::after {
  content: '';
  position: absolute;
  top: -100%; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(to bottom, transparent, var(--brand-accent-dim), transparent);
  transition: top 0.6s ease;
  pointer-events: none;
}
.scan-line:hover::after { top: 100%; }

/* --- Form Status --- */
.form-status {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  margin-top: var(--space-3);
  display: none;
}
.form-status--error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--status-error);
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.form-status--success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--status-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* --- Button Spinner --- */
.btn-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: var(--radius-full);
  animation: btnSpin 0.6s linear infinite;
  vertical-align: middle;
}
@keyframes btnSpin {
  to { transform: rotate(360deg); }
}

/* --- Mobile Component Refinements --- */
@media (max-width: 639px) {
  /* Typography: scale heading-2 down on mobile */
  .heading-2 {
    font-size: var(--text-2xl);
  }
  /* Section headers: tighter margin */
  .section-header {
    margin-bottom: var(--space-8);
  }
  /* Section padding: tighter on mobile */
  .section {
    padding: var(--space-12) 0;
  }
  /* Footer: reduce spacing between grid blocks */
  .site-footer__grid {
    gap: var(--space-6);
    margin-bottom: var(--space-8);
  }
  .site-footer__bottom {
    padding-top: var(--space-5);
  }
  /* Header: tighter logo text */
  .site-header__logo-text {
    font-size: var(--text-xs);
    letter-spacing: 0.06em;
  }
  /* Buttons: slightly smaller on mobile */
  .btn--lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
  }
  /* Mobile nav: larger tap targets */
  .mobile-nav__link {
    padding: var(--space-5) var(--space-4);
    font-size: var(--text-base);
  }
}