/* ============================================
   Argen Systems — Design System & Styles
   ============================================ */

:root {
  --color-bg:          #0A0E1A;
  --color-surface:     #111827;
  --color-surface-2:   #1A2333;
  --color-border:      #1E2D45;
  --color-accent:      #2563EB;
  --color-accent-dim:  #1D4ED8;
  --color-accent-glow: rgba(37,99,235,0.15);
  --color-silver:      #94A3B8;
  --color-white:       #F1F5F9;
  --color-success:     #10B981;
  --color-warning:     #F59E0B;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  48px;
  --space-2xl: 80px;
  --space-3xl: 120px;

  --max-width:     1100px;
  --section-pad-y: var(--space-2xl);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-white); }

img, svg { display: block; max-width: 100%; }

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--section-pad-y) 0;
}

.section--surface {
  background: var(--color-surface);
}

/* ============================================
   Nav
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) 0;
  transition: background 0.3s, box-shadow 0.3s;
}

.nav.scrolled {
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}

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

.nav__links a {
  color: var(--color-silver);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav__cta {
  background: var(--color-accent);
  color: var(--color-white) !important;
  padding: var(--space-sm) var(--space-md);
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem;
  transition: background 0.2s;
}

.nav__cta:hover {
  background: var(--color-accent-dim);
}

.nav__hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  margin: 5px 0;
  transition: transform 0.3s, opacity 0.3s;
}

.nav__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav overlay */
.nav__overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 26, 0.98);
  backdrop-filter: blur(16px);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
}

.nav__overlay.open {
  display: flex;
}

.nav__overlay a {
  color: var(--color-white);
  font-size: 1.5rem;
  font-weight: 600;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  min-height: auto;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 140px 0 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(37,99,235,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero__content {
  position: relative;
  max-width: 700px;
}

.hero__headline {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.hero__sub {
  font-size: 1.2rem;
  color: var(--color-silver);
  line-height: 1.6;
  margin-bottom: var(--space-xl);
  max-width: 540px;
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn--primary:hover {
  background: var(--color-accent-dim);
  color: var(--color-white);
}

.btn--secondary {
  background: transparent;
  color: var(--color-silver);
  border: 1px solid var(--color-border);
}
.btn--secondary:hover {
  border-color: var(--color-silver);
  color: var(--color-white);
}

/* ============================================
   Trust Bar
   ============================================ */
.trust-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-bar__item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-silver);
  font-size: 0.9rem;
  font-weight: 500;
}

.trust-bar__icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

/* ============================================
   Cards
   ============================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--space-xl) var(--space-lg);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 24px var(--color-accent-glow);
}

.card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.card__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.card__desc {
  color: var(--color-silver);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.card__link {
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ============================================
   Columns
   ============================================ */
.columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.column__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.column__text {
  color: var(--color-silver);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ============================================
   Section Headers
   ============================================ */
.section__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section__label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--space-sm);
}

.section__title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section__subtitle {
  color: var(--color-silver);
  margin-top: var(--space-sm);
  font-size: 1.05rem;
}

/* ============================================
   Past Performance
   ============================================ */
.performance-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.performance-item {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 10px;
}

.performance-item__org {
  font-weight: 600;
  min-width: 200px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.performance-item__desc {
  color: var(--color-silver);
  font-size: 0.95rem;
}

/* ============================================
   CTA Banner
   ============================================ */
.cta-banner {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.cta-banner__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.cta-banner__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ============================================
   Badges
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.badge--success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge--pending {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge--info {
  background: var(--color-accent-glow);
  color: var(--color-accent);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

/* ============================================
   Tables
   ============================================ */
.table-wrap {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  text-align: left;
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-silver);
  font-weight: 600;
}

.table td {
  font-size: 0.95rem;
}

/* ============================================
   Services Page
   ============================================ */
.service-block {
  margin-bottom: var(--space-2xl);
}

.service-block__title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.service-block__title::before {
  content: '';
  display: block;
  width: 4px;
  height: 24px;
  background: var(--color-accent);
  border-radius: 2px;
}

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.service-list li {
  color: var(--color-silver);
  font-size: 0.95rem;
  padding-left: var(--space-lg);
  position: relative;
}

.service-list li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 700;
}

/* ============================================
   About Page
   ============================================ */
.about-intro {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--color-silver);
  max-width: 720px;
  margin-bottom: var(--space-2xl);
}

.bio-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.bio-card__name {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.bio-card__role {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: var(--space-md);
}

.bio-card__text {
  color: var(--color-silver);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.bio-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ============================================
   Capability Page
   ============================================ */
.cap-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.cap-header__info {
  font-size: 0.9rem;
  color: var(--color-silver);
  line-height: 1.8;
}

.cap-section {
  margin-bottom: var(--space-xl);
}

.cap-section__title {
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

/* ============================================
   Contact Page
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-silver);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px var(--space-md);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-white);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394A3B8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status {
  margin-top: var(--space-md);
  font-size: 0.9rem;
  min-height: 1.25em;
}
.form-status--success { color: var(--color-success); }
.form-status--error   { color: var(--color-warning); }

.contact-direct {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--space-xl);
}

.contact-direct__title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.contact-direct__email {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.contact-direct__note {
  color: var(--color-silver);
  font-size: 0.9rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0 var(--space-xl);
}

.footer__grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  height: 36px;
  margin-bottom: var(--space-md);
  filter: brightness(0) invert(1);
}

.footer__tagline {
  color: var(--color-silver);
  font-size: 0.9rem;
}

.footer__nav {
  list-style: none;
  display: flex;
  gap: var(--space-lg);
}

.footer__nav a {
  color: var(--color-silver);
  font-size: 0.9rem;
}
.footer__nav a:hover {
  color: var(--color-white);
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__meta {
  color: var(--color-silver);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.footer__copy {
  color: var(--color-silver);
  font-size: 0.8rem;
}

/* ============================================
   Page Header (inner pages)
   ============================================ */
.page-header {
  padding-top: 140px;
  padding-bottom: var(--space-xl);
}

.page-header__title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.page-header__sub {
  color: var(--color-silver);
  font-size: 1.1rem;
  max-width: 600px;
}

/* ============================================
   404
   ============================================ */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.error-page__code {
  font-size: 8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.error-page__title {
  font-size: 1.5rem;
  margin: var(--space-md) 0;
}

.error-page__text {
  color: var(--color-silver);
  margin-bottom: var(--space-lg);
}

/* ============================================
   Registrations Block
   ============================================ */
.registrations {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
}

.registrations__item {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-md);
}

.registrations__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-silver);
  margin-bottom: var(--space-xs);
}

.registrations__value {
  font-weight: 600;
  font-size: 0.95rem;
}

/* ============================================
   Scroll Reveal
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: block; }

  .hero { min-height: auto; padding: 140px 0 var(--space-2xl); }

  .card-grid { grid-template-columns: 1fr; }

  .performance-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .performance-item__org { min-width: auto; }

  .contact-grid { grid-template-columns: 1fr; }

  .footer__grid { flex-direction: column; }
  .footer__nav { flex-wrap: wrap; }
  .footer__bottom { flex-direction: column; }

  .cap-header { flex-direction: column; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .trust-bar { flex-direction: column; align-items: center; }
  .columns { grid-template-columns: 1fr; }
}