/* style.css — Valkyrie Fueling Service LLC (Navy & Gold, WCAG 2.1 Level AA) */

:root {
  /* Fluid Type Scale (12px floor) */
  --text-xs: clamp(0.75rem, 0.72rem + 0.2vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.84rem + 0.25vw, 1rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.45vw, 1.375rem);
  --text-xl: clamp(1.375rem, 1.2rem + 0.8vw, 1.875rem);
  --text-2xl: clamp(2rem, 1.5rem + 2.2vw, 3.25rem);

  /* 4px Spacing System */
  --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;

  /* Brand Palette — Tuned for strict WCAG 2.1 Level AA/AAA contrast */
  --color-navy: #0f2a45;          /* Exact business card navy (14.37:1 vs white) */
  --color-navy-deep: #091b2e;     /* Deep structural navy */
  --color-navy-surface: #153556;  /* Elevated navy panel */
  --color-gold-bright: #f2c96d;   /* High-contrast gold on dark navy (9.66:1 vs #0f2a45) */
  --color-gold-hover: #f7d78c;    /* Hover state for gold buttons on navy */
  --color-gold-rule: #c8962e;     /* Decorative rules/accents */
  --color-gold-dark: #6e4c06;     /* Accessible dark gold text on light backgrounds (6.9:1 vs white) */
  --color-gold-tint: #fcf8ee;     /* Subtle warm callout surface */
  --color-gold-highlight: #f5dfb0;

  /* Light Surfaces & Text */
  --color-bg: #f4f7fa;
  --color-surface: #ffffff;
  --color-surface-alt: #edf2f7;
  --color-border: oklch(0.28 0.05 248 / 0.14);
  --color-border-strong: oklch(0.28 0.05 248 / 0.24);

  --color-text: #0f2a45;          /* 13.5:1 on #f4f7fa */
  --color-text-body: #1c334a;     /* 11.4:1 on #ffffff */
  --color-text-muted: #3b536b;    /* 7.1:1 on #ffffff (AAA) */
  --color-text-inverse: #ffffff;
  --color-text-inverse-muted: #d9e5f2; /* 11.1:1 on #0f2a45 */

  --color-focus: #d97706;         /* High-visibility focus ring */

  /* Typography */
  --font-display: 'Cabinet Grotesk', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

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

  --shadow-sm: 0 1px 3px oklch(0.2 0.04 248 / 0.07), 0 1px 2px oklch(0.2 0.04 248 / 0.04);
  --shadow-md: 0 6px 18px oklch(0.2 0.04 248 / 0.09), 0 2px 6px oklch(0.2 0.04 248 / 0.05);
  --shadow-lg: 0 14px 34px oklch(0.2 0.04 248 / 0.14);

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

  --content-wide: 1180px;
}

/* Skip to main content link (WCAG 2.4.1) */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: 999;
  background-color: var(--color-gold-bright);
  color: var(--color-navy-deep);
  font-weight: 700;
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: var(--shadow-lg);
}

.skip-link:focus,
.skip-link:focus-visible {
  top: var(--space-4);
  outline: 3px solid var(--color-navy-deep);
  outline-offset: 2px;
}

/* Container */
.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 4vw, var(--space-8));
}

/* Sticky Top Navigation */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-navy-deep);
  border-bottom: 1px solid oklch(1 0 0 / 0.12);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 64px;
  padding-block: var(--space-2);
}

.site-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-inverse);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
  min-height: 44px;
}

@media (min-width: 640px) {
  .site-nav__brand {
    font-size: var(--text-sm);
    letter-spacing: 0.04em;
  }
}

.site-nav__brand-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background-color: var(--color-gold-bright);
  flex-shrink: 0;
}

.site-nav__links {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

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

.site-nav__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-inline: var(--space-3);
  color: var(--color-text-inverse-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.site-nav__link:hover {
  color: var(--color-gold-bright);
  background-color: oklch(1 0 0 / 0.06);
}

.site-nav__link:focus-visible {
  outline: 3px solid var(--color-gold-bright);
  outline-offset: 2px;
}

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

#print-statement-btn {
  display: none;
}

@media (min-width: 640px) {
  #print-statement-btn {
    display: inline-flex;
  }
}

/* Buttons (All >= 44px touch targets) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 700;
  border-radius: var(--radius-md);
  text-decoration: none;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn--gold {
  background-color: var(--color-gold-bright);
  color: var(--color-navy-deep);
}

.btn--gold:hover {
  background-color: var(--color-gold-hover);
}

.btn--gold:focus-visible {
  outline: 3px solid var(--color-text-inverse);
  outline-offset: 2px;
}

.btn--outline-light {
  background-color: transparent;
  color: var(--color-text-inverse);
  border: 1px solid oklch(1 0 0 / 0.35);
}

.btn--outline-light:hover {
  border-color: var(--color-gold-bright);
  color: var(--color-gold-bright);
  background-color: oklch(1 0 0 / 0.05);
}

.btn--outline-light:focus-visible {
  outline: 3px solid var(--color-gold-bright);
  outline-offset: 2px;
}

.btn--navy {
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
}

.btn--navy:hover {
  background-color: var(--color-navy-surface);
}

/* Hero Section — Matches #0f2a45 Business Card Navy */
.hero {
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
  border-bottom: 4px solid var(--color-gold-rule);
  padding-block: clamp(var(--space-8), 5vw, var(--space-16));
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: center;
}

@media (min-width: 860px) {
  .hero__grid {
    grid-template-columns: minmax(280px, 440px) 1fr;
    gap: var(--space-12);
  }
}

.hero__logo-wrap {
  display: flex;
  justify-content: center;
  background-color: var(--color-navy);
}

.hero__logo {
  width: 100%;
  max-width: 430px;
  height: auto;
  display: block;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

@media (min-width: 860px) {
  .hero__content {
    align-items: flex-end;
    text-align: right;
  }
}

.hero__kicker {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  margin-bottom: var(--space-3);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-gold-bright);
  line-height: 1.08;
  margin-bottom: var(--space-4);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-inverse-muted);
  max-width: 48ch;
  line-height: 1.45;
  margin-bottom: var(--space-6);
}

.hero__contact-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
  background-color: var(--color-navy-surface);
  border-left: 4px solid var(--color-gold-bright);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-6);
}

.hero__contact-item {
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 36px;
}

a.hero__contact-item:hover {
  color: var(--color-gold-bright);
  text-decoration: underline;
}

a.hero__contact-item:focus-visible {
  outline: 3px solid var(--color-gold-bright);
  outline-offset: 3px;
}

.hero__contact-sep {
  color: var(--color-gold-bright);
  opacity: 0.7;
}

.hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Socioeconomic Status Ribbon */
.status-ribbon {
  background-color: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border-strong);
  padding-block: var(--space-3);
}

.status-ribbon__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3) var(--space-6);
  list-style: none;
}

.status-ribbon__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-navy);
}

.status-ribbon__diamond {
  color: var(--color-gold-dark);
  font-size: 0.75rem;
}

/* Main Two-Column Capabilities Layout */
.main-content {
  padding-block: clamp(var(--space-8), 5vw, var(--space-16));
}

.cap-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: start;
}

@media (min-width: 960px) {
  .cap-layout {
    grid-template-columns: 1.35fr 0.95fr;
    gap: var(--space-12);
  }
}

.cap-primary {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

.cap-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* Section Headers (Matches Gold Underline from Capabilities PDF) */
.section-header {
  border-bottom: 2px solid var(--color-gold-rule);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-5);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-navy);
}

/* Company Overview */
.overview__lead {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.35;
  margin-bottom: var(--space-4);
}

.overview__body {
  font-size: var(--text-base);
  color: var(--color-text-body);
  line-height: 1.65;
}

/* Core Competencies (Horizontal Row Cards) */
.competency-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  list-style: none;
}

.competency-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.competency-card::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 5px;
  background-color: var(--color-navy);
}

@media (min-width: 600px) {
  .competency-card {
    grid-template-columns: 190px 1fr;
    align-items: center;
    gap: var(--space-6);
    padding: var(--space-5) var(--space-6);
  }
}

.competency-card__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 800;
  color: var(--color-navy);
}

.competency-card__desc {
  font-size: var(--text-base);
  color: var(--color-text-body);
  line-height: 1.5;
}

/* Differentiators */
.diff-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  list-style: none;
}

.diff-item {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: var(--space-3);
  align-items: baseline;
  font-size: var(--text-base);
  color: var(--color-text-body);
  line-height: 1.55;
}

.diff-item__marker {
  width: 10px;
  height: 10px;
  background-color: var(--color-gold-rule);
  border-radius: 2px;
  display: inline-block;
  transform: translateY(-1px);
}

.diff-item strong {
  color: var(--color-navy);
  font-weight: 700;
}

/* Sidebar Cards */
.data-panel {
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.data-panel--navy {
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
  border-top: 4px solid var(--color-gold-bright);
}

.data-panel--light {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.data-panel__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-4);
}

.data-panel--navy .data-panel__title {
  color: var(--color-gold-bright);
  border-bottom: 1px solid oklch(1 0 0 / 0.18);
}

.data-panel--light .data-panel__title {
  color: var(--color-navy);
  border-bottom: 2px solid var(--color-gold-rule);
}

/* Definition Lists for Identifiers, Certifications, NAICS, Leadership */
.kv-list {
  display: flex;
  flex-direction: column;
}

.kv-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-2);
  border-bottom: 1px solid oklch(0.5 0.02 248 / 0.14);
  font-size: var(--text-sm);
}

.data-panel--navy .kv-row {
  border-bottom-color: oklch(1 0 0 / 0.12);
}

.kv-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.kv-label {
  font-weight: 500;
  color: var(--color-text-muted);
}

.data-panel--navy .kv-label {
  color: var(--color-text-inverse-muted);
}

.kv-value {
  font-weight: 700;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--color-navy);
}

.data-panel--navy .kv-value {
  color: var(--color-text-inverse);
}

.kv-value--mono {
  font-family: var(--font-mono);
  font-size: 0.92em;
  letter-spacing: 0.02em;
}

/* Copyable ID button */
.copy-id-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 36px;
  padding: var(--space-1) var(--space-2);
  margin-right: calc(-1 * var(--space-2));
  border-radius: var(--radius-sm);
  color: inherit;
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 0.92em;
}

.copy-id-btn:hover {
  background-color: oklch(1 0 0 / 0.1);
  color: var(--color-gold-bright);
}

.copy-id-btn:focus-visible {
  outline: 2px solid var(--color-gold-bright);
  outline-offset: 2px;
}

.copy-badge {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background-color: oklch(1 0 0 / 0.14);
  color: var(--color-gold-bright);
}

/* Status Pill Badge (WCAG AAA: #0f2a45 on #f2c96d = 9.66:1) */
.badge-pending {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  background-color: var(--color-gold-bright);
  color: var(--color-navy-deep);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Sectors We Serve (Full-Width 5-Tile Grid) */
.sectors-section {
  margin-top: var(--space-12);
}

.sectors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: var(--space-4);
  list-style: none;
}

.sector-tile {
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
  border-bottom: 4px solid var(--color-gold-bright);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-4);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 84px;
  box-shadow: var(--shadow-sm);
}

.sector-tile__name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.3;
}

/* Solicitation Callout Box */
.solicitation-callout {
  margin-top: var(--space-10);
  background-color: var(--color-gold-tint);
  border: 2px solid var(--color-gold-rule);
  border-left: 8px solid var(--color-gold-rule);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-5), 3vw, var(--space-8));
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.solicitation-callout__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: var(--space-1);
}

.solicitation-callout__desc {
  font-size: var(--text-base);
  color: var(--color-text-body);
}

.solicitation-callout__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Footer & Accessibility Statement */
.site-footer {
  background-color: var(--color-navy-deep);
  color: var(--color-text-inverse-muted);
  border-top: 3px solid var(--color-gold-rule);
  padding-block: var(--space-10);
  margin-top: var(--space-12);
}

.site-footer__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid oklch(1 0 0 / 0.12);
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 800;
  color: var(--color-text-inverse);
  letter-spacing: 0.04em;
}

.site-footer__contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-sm);
}

.site-footer__link {
  color: var(--color-gold-bright);
  text-decoration: none;
  font-weight: 600;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.site-footer__link:hover {
  text-decoration: underline;
}

.site-footer__link:focus-visible {
  outline: 3px solid var(--color-gold-bright);
  outline-offset: 2px;
}

.a11y-statement {
  padding-top: var(--space-6);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .a11y-statement {
    grid-template-columns: 240px 1fr;
    gap: var(--space-8);
  }
}

.a11y-statement__title {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-gold-bright);
}

.a11y-statement__text {
  font-size: var(--text-xs);
  color: var(--color-text-inverse-muted);
  line-height: 1.6;
  max-width: 85ch;
}

/* Print Stylesheet — Formats cleanly as a Capabilities Sheet when printed */
@media print {
  .site-nav,
  .hero__cta-row,
  .solicitation-callout__actions .btn--outline-only,
  .copy-badge {
    display: none !important;
  }

  body {
    background: #ffffff;
    color: #0f2a45;
    font-size: 10pt;
  }

  .hero {
    padding-block: 16pt;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .data-panel--navy,
  .sector-tile,
  .badge-pending,
  .status-ribbon {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .cap-layout {
    grid-template-columns: 1.35fr 0.95fr;
    gap: 18pt;
  }

  .main-content {
    padding-block: 14pt;
  }
}