/* ============================================================
   RINCON GOVERNMENTAL SERVICES LLC — DESIGN TOKENS & STYLES
   Art Direction: Authoritative, Military Heritage, Professional
   Palette: Deep Navy + Warm Gold accent
   ============================================================ */

/* --- Type Scale --- */
:root {
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);

  /* Spacing (4px base) */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* Fonts */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;
}

/* --- Light Mode (Default) --- */
:root, [data-theme="light"] {
  /* Surfaces — warm ivory/stone */
  --color-bg:             #f5f3ef;
  --color-surface:        #faf8f5;
  --color-surface-2:      #ffffff;
  --color-surface-offset: #edeae4;
  --color-border:         #d4d0c8;
  --color-divider:        #ddd9d2;

  /* Text */
  --color-text:           #1a1a2e;
  --color-text-muted:     #6b6b7b;
  --color-text-faint:     #a0a0ae;
  --color-text-inverse:   #faf8f5;

  /* Primary — Deep Navy */
  --color-primary:        #1a1a2e;
  --color-primary-hover:  #2d2d4a;
  --color-primary-active: #0f0f1e;

  /* Accent — Warm Gold */
  --color-accent:         #b8860b;
  --color-accent-hover:   #9a7209;
  --color-accent-light:   #daa520;

  /* Status */
  --color-success:        #2d6a4f;
  --color-error:          #9b2226;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0.2 0.01 60 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 60 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 60 / 0.12);

  /* Hero */
  --hero-bg: #1a1a2e;
  --hero-text: #faf8f5;
  --hero-accent: #daa520;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --color-bg:             #0f0f1e;
  --color-surface:        #1a1a2e;
  --color-surface-2:      #22223a;
  --color-surface-offset: #15152a;
  --color-border:         #2d2d4a;
  --color-divider:        #252540;

  --color-text:           #e0dfd8;
  --color-text-muted:     #8888a0;
  --color-text-faint:     #555570;
  --color-text-inverse:   #1a1a2e;

  --color-primary:        #e0dfd8;
  --color-primary-hover:  #c8c7be;
  --color-primary-active: #faf8f5;

  --color-accent:         #daa520;
  --color-accent-hover:   #edb82a;
  --color-accent-light:   #f0c848;

  --color-success:        #52b788;
  --color-error:          #e76f51;

  --hero-bg: #0a0a18;
  --hero-text: #e0dfd8;
  --hero-accent: #daa520;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #0f0f1e;
    --color-surface:        #1a1a2e;
    --color-surface-2:      #22223a;
    --color-surface-offset: #15152a;
    --color-border:         #2d2d4a;
    --color-divider:        #252540;
    --color-text:           #e0dfd8;
    --color-text-muted:     #8888a0;
    --color-text-faint:     #555570;
    --color-text-inverse:   #1a1a2e;
    --color-primary:        #e0dfd8;
    --color-primary-hover:  #c8c7be;
    --color-primary-active: #faf8f5;
    --color-accent:         #daa520;
    --color-accent-hover:   #edb82a;
    --color-accent-light:   #f0c848;
    --color-success:        #52b788;
    --color-error:          #e76f51;
    --hero-bg: #0a0a18;
    --hero-text: #e0dfd8;
    --hero-accent: #daa520;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  }
}

/* ============================================================
   COMPONENTS
   ============================================================ */

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent);
  color: #fff;
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
  z-index: 100;
}
.skip-link:focus { top: var(--space-2); }

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }

.header-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}
.logo-group svg { flex-shrink: 0; }
.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: 0.02em;
  line-height: 1.2;
}
.logo-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.header-nav a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.header-nav a:hover { color: var(--color-text); }

.theme-toggle {
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-offset); }

.mobile-menu-btn {
  display: none;
  padding: var(--space-2);
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .header-nav { display: none; }
  .header-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-4);
    gap: var(--space-4);
  }
  .mobile-menu-btn { display: flex; align-items: center; }
  .logo-text { font-size: var(--text-base); }
}

/* --- Hero --- */
.hero {
  background: var(--hero-bg);
  color: var(--hero-text);
  padding: clamp(var(--space-16), 10vw, var(--space-32)) var(--space-4);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 50%;
  background: linear-gradient(135deg, transparent 40%, oklch(from var(--hero-accent) l c h / 0.06));
  pointer-events: none;
}
.hero-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--hero-accent);
  margin-bottom: var(--space-4);
}
.hero-badge::before {
  content: '';
  width: 8px; height: 8px;
  background: var(--hero-accent);
  border-radius: var(--radius-full);
}
.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  line-height: 1.1;
  margin-bottom: var(--space-6);
}
.hero h1 em {
  font-style: normal;
  color: var(--hero-accent);
}
.hero-desc {
  font-size: var(--text-base);
  color: oklch(from var(--hero-text) l c h / 0.75);
  max-width: 52ch;
  line-height: 1.7;
  margin-bottom: var(--space-8);
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--hero-accent);
  color: #1a1a2e;
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}
.hero-cta:hover { background: var(--color-accent-light); }
.hero-cta svg { width: 16px; height: 16px; }

/* --- Section --- */
.section {
  padding: clamp(var(--space-12), 6vw, var(--space-24)) var(--space-4);
}
.section-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
}
.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}
.section-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-10);
}

/* Alternating background */
.section--alt { background: var(--color-surface); }
.section--dark {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
[data-theme="dark"] .section--dark {
  background: var(--color-surface);
  color: var(--color-text);
}

/* --- Capabilities Grid --- */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr));
  gap: var(--space-6);
}
.cap-card {
  background: var(--color-surface-2);
  border: 1px solid oklch(from var(--color-text) l c h / 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--transition-interactive), transform var(--transition-interactive);
}
.cap-icon {
  width: 40px; height: 40px;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}
.cap-card h3 {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}
.cap-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* --- NAICS List --- */
.naics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(240px, 100%), 1fr));
  gap: var(--space-4);
}
.naics-item {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
}
.naics-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
}
.naics-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --- About / Two Column --- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; gap: var(--space-8); }
}
.about-text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  line-height: 1.7;
}
.about-text p:last-child { margin-bottom: 0; }

/* Stats */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.stat-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
}
.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-1);
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

/* --- Differentiators --- */
.diff-list {
  display: grid;
  gap: var(--space-6);
}
.diff-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: var(--space-4);
  align-items: start;
}
.diff-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-accent);
  line-height: 1;
}
.diff-item h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}
.diff-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* --- Contact / CTA Section --- */
.cta-section {
  background: var(--hero-bg);
  color: var(--hero-text);
  text-align: center;
  padding: clamp(var(--space-16), 8vw, var(--space-24)) var(--space-4);
}
.cta-section .section-inner { max-width: var(--content-narrow); }
.cta-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-4);
}
.cta-desc {
  color: oklch(from var(--hero-text) l c h / 0.7);
  margin-bottom: var(--space-8);
  margin-inline: auto;
}
.contact-methods {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}
.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: oklch(from var(--hero-text) l c h / 0.85);
}
.contact-method svg { width: 18px; height: 18px; color: var(--hero-accent); flex-shrink: 0; }
.contact-method a {
  color: inherit;
  text-decoration: none;
}
.contact-method a:hover { color: var(--hero-accent); }

/* --- Footer --- */
.site-footer {
  padding: var(--space-8) var(--space-4);
  border-top: 1px solid var(--color-divider);
  text-align: center;
}
.footer-inner {
  max-width: var(--content-wide);
  margin-inline: auto;
}
.footer-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-2) var(--space-3);
  border: 1px solid oklch(from var(--color-text) l c h / 0.1);
  border-radius: var(--radius-full);
}
.badge svg { width: 14px; height: 14px; color: var(--color-accent); }

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-inline: auto;
}

/* September 2026 company details refresh */
.hero-contact {
  margin-top: var(--space-6);
  color: var(--hero-text);
  font-size: var(--text-sm);
  line-height: 1.8;
}
.hero-contact a {
  color: inherit;
  text-underline-offset: var(--space-1);
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}
.hero-badge { max-width: 100%; }
.entity-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
  gap: var(--space-6);
  padding-block: var(--space-6);
  margin-bottom: var(--space-8);
  border-block: 1px solid var(--color-border);
}
.entity-details dt { font-size: var(--text-sm); color: var(--color-text-muted); }
.entity-details dd { font-size: var(--text-base); font-weight: 600; margin-top: var(--space-1); }
.naics-heading { font-family: var(--font-body); font-size: var(--text-lg); margin-bottom: var(--space-3); }
.primary-naics { margin-bottom: var(--space-8); }
.primary-naics strong { font-variant-numeric: tabular-nums; }
.procurement-note { margin-top: var(--space-6); font-size: var(--text-sm); color: var(--color-text-muted); }
.stat-number { font-size: clamp(1.5rem, 2.5vw, 2rem); }
.contact-method { min-width: 0; }
.contact-method a { overflow-wrap: anywhere; min-height: 44px; display: inline-flex; align-items: center; }
.theme-toggle, .mobile-menu-btn { min-width: 44px; min-height: 44px; justify-content: center; flex-shrink: 0; }
.header-nav a { min-height: 44px; display: inline-flex; align-items: center; }
[data-reveal] { opacity: 1 !important; transform: none !important; }
a:active, button:active { opacity: 0.8; }
@media (max-width: 768px) {
  .logo-group { min-width: 0; }
  .logo-text { font-family: var(--font-body); font-weight: 600; }
  .logo-subtitle { letter-spacing: 0.03em; }
  .hero-badge { font-size: var(--text-xs); white-space: normal; }
  .stat-card { padding: var(--space-4); }
}

/* --- Utilities --- */
.gold { color: var(--color-accent); }

/* Animate on scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}