/* ==========================================================================
   Buddiesmeadowrel Technical Design System
   Aesthetic: Swiss Minimalist (Strict Grid, Monochromatic, Precision Accents)
   Card Style: Border Accent (Left/Top Solid Keyline, Clean Typographic Weight)
   ========================================================================== */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
  
  --color-bg: #f9fafb;
  --color-surface: #ffffff;
  --color-surface-subtle: #f1f3f5;
  --color-border: #d0d5dd;
  --color-border-dark: #101828;
  --color-accent: #0b4f8a; /* Deep Boeing Aero Blue */
  --color-accent-hover: #073863;
  --color-text-main: #0f172a;
  --color-text-muted: #475467;
  --color-text-light: #667085;
  --color-focus: #0047ab;
  --color-error: #b42318;
  --color-error-bg: #fef3f2;
  --color-success: #027a48;

  --spacing-4: 4px;
  --spacing-8: 8px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-40: 40px;
  --spacing-64: 64px;

  --header-height-desktop: 60px;
  --header-height-mobile: 50px;
  --max-width: 1200px;
}

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

html {
  font-size: 16px;
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--color-text-main);
  background-color: var(--color-bg);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-accent-hover);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

h1, h2, h3, h4, .brand-text {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--color-text-main);
  overflow-wrap: anywhere;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.75rem);
  text-transform: uppercase;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  text-transform: uppercase;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.625;
  margin-bottom: var(--spacing-16);
}

.mono-tag {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  display: inline-block;
  margin-bottom: var(--spacing-8);
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-24);
  padding-right: var(--spacing-24);
}

.section-padding {
  padding-top: var(--spacing-64);
  padding-bottom: var(--spacing-64);
}

/* Header */
.site-header {
  height: var(--header-height-desktop);
  background-color: var(--color-surface);
  border-bottom: 2px solid var(--color-border-dark);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
  text-decoration: none;
  color: var(--color-text-main);
  min-width: 0;
}

.brand-svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.brand-text {
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--spacing-24);
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: var(--spacing-4) 0;
  border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-text-main);
  border-bottom-color: var(--color-accent);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  background-color: var(--color-border-dark);
  color: #ffffff;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 8px 16px;
  border: 1px solid var(--color-border-dark);
}

.header-cta:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

/* Mobile Hamburger & Overlay */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-8);
  color: var(--color-text-main);
}

.nav-overlay {
  display: none;
}

/* Hero Section */
.hero {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-64) 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--spacing-40);
  align-items: center;
}

.hero-stats-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-16);
  margin-top: var(--spacing-40);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-24);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-media {
  border-left: 2px solid var(--color-border-dark);
  padding-left: var(--spacing-24);
}

.hero-image-wrap {
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.hero-image-wrap img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

/* Swiss Grid Topic Cards (Border Accent Style) */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-24);
  margin-top: var(--spacing-40);
}

.swiss-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 6px solid var(--color-accent);
  padding: var(--spacing-24);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  min-width: 0;
}

.swiss-card:hover {
  border-left-color: var(--color-border-dark);
}

.card-body {
  margin-bottom: var(--spacing-24);
}

.card-title {
  margin-top: var(--spacing-8);
  margin-bottom: var(--spacing-16);
  font-size: 1.25rem;
}

.card-image-wrap {
  margin-bottom: var(--spacing-16);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.card-image-wrap img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-link-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-8);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-main);
  text-decoration: none;
  border-bottom: 2px solid var(--color-border-dark);
  padding-bottom: 2px;
  align-self: flex-start;
}

.card-link-cta:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* Supporting Section */
.supporting-section {
  background-color: var(--color-surface-subtle);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.matrix-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin-top: var(--spacing-24);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
  min-width: 580px;
}

.tech-table th,
.tech-table td {
  padding: 16px var(--spacing-16);
  border-bottom: 1px solid var(--color-border);
}

.tech-table th {
  background-color: var(--color-border-dark);
  color: #ffffff;
  font-family: var(--font-sans);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tech-table tr:hover td {
  background-color: #f8fafc;
}

/* Article / Sub-page Layout */
.article-header {
  padding: var(--spacing-64) 0 var(--spacing-40) 0;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.article-content {
  padding-top: var(--spacing-64);
  padding-bottom: var(--spacing-64);
}

.content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-40);
  align-items: start;
}

.article-main h2 {
  margin-top: var(--spacing-40);
  margin-bottom: var(--spacing-16);
  border-bottom: 2px solid var(--color-border-dark);
  padding-bottom: var(--spacing-8);
}

.article-main h3 {
  margin-top: var(--spacing-24);
  margin-bottom: var(--spacing-8);
}

.article-main ul, .article-main ol {
  margin-bottom: var(--spacing-24);
  padding-left: var(--spacing-24);
  color: var(--color-text-muted);
}

.article-main li {
  margin-bottom: var(--spacing-8);
}

.callout-box {
  background-color: var(--color-surface-subtle);
  border-left: 4px solid var(--color-accent);
  padding: var(--spacing-24);
  margin: var(--spacing-24) 0;
}

.sidebar-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-border-dark);
  padding: var(--spacing-24);
  margin-bottom: var(--spacing-24);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-24);
  display: flex;
  flex-direction: column;
}

.form-label {
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: var(--spacing-8);
  color: var(--color-text-main);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px var(--spacing-16);
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  background-color: #ffffff;
  color: var(--color-text-main);
}

.form-input.is-invalid,
.form-textarea.is-invalid {
  border-color: var(--color-error);
  background-color: var(--color-error-bg);
}

.field-error {
  color: var(--color-error);
  font-size: 0.8125rem;
  margin-top: var(--spacing-4);
  display: none;
}

.field-error.is-visible {
  display: block;
}

.btn-primary {
  display: inline-block;
  background-color: var(--color-border-dark);
  color: #ffffff;
  padding: 14px 28px;
  font-size: 0.9375rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary:hover {
  background-color: var(--color-accent);
  color: #ffffff;
}

.form-status-alert {
  padding: var(--spacing-16);
  margin-bottom: var(--spacing-24);
  display: none;
  font-weight: 600;
  font-size: 0.9375rem;
}

.form-status-alert.is-visible {
  display: block;
}

.form-status-alert.status-success {
  background-color: #ecfdf3;
  color: var(--color-success);
  border: 1px solid #a6f4c5;
}

/* Contact Specifics */
.contact-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--spacing-40);
}

.static-map-canvas {
  background-color: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  padding: var(--spacing-24);
  text-align: center;
  position: relative;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* Footer */
.site-footer {
  background-color: #0b0f19;
  color: #e2e8f0;
  border-top: 4px solid var(--color-accent);
  padding-top: var(--spacing-64);
  padding-bottom: var(--spacing-40);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--spacing-40);
  margin-bottom: var(--spacing-40);
}

.footer-col h4 {
  color: #ffffff;
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-16);
}

.footer-links-list {
  list-style: none;
}

.footer-links-list li {
  margin-bottom: var(--spacing-8);
}

.footer-links-list a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.875rem;
}

.footer-links-list a:hover {
  color: #ffffff;
  text-decoration: underline;
}

.footer-meta-block {
  font-size: 0.875rem;
  color: #94a3b8;
  line-height: 1.6;
}

.footer-meta-block p {
  color: #94a3b8;
  margin-bottom: var(--spacing-8);
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: var(--spacing-24);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-16);
  font-size: 0.8125rem;
  color: #64748b;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: #0b0f19;
  color: #f8fafc;
  border-top: 3px solid var(--color-accent);
  padding: var(--spacing-24) var(--spacing-16);
  z-index: 1000;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.25);
}

.cookie-banner[hidden] {
  display: none !important;
}

.cookie-banner-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-16);
}

.cookie-text {
  font-size: 0.875rem;
  color: #cbd5e1;
  max-width: 720px;
  margin-bottom: 0;
}

.cookie-text a {
  color: #ffffff;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-8);
}

.cookie-btn {
  padding: 8px 16px;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  border: 1px solid #475467;
  background: transparent;
  color: #ffffff;
  cursor: pointer;
}

.cookie-btn-primary {
  background-color: #ffffff;
  color: #0f172a;
  border-color: #ffffff;
}

.cookie-btn-primary:hover {
  background-color: #f1f5f9;
}

.cookie-btn-secondary:hover {
  background-color: #1e293b;
  border-color: #94a3b8;
}

/* Accessibility & Print */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Responsiveness */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-media {
    border-left: none;
    border-top: 2px solid var(--color-border-dark);
    padding-left: 0;
    padding-top: var(--spacing-24);
  }
  .content-grid {
    grid-template-columns: 1fr;
  }
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: var(--header-height-mobile);
  }
  .nav-desktop, .header-cta {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .nav-overlay {
    display: none;
    position: fixed;
    top: var(--header-height-mobile);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-surface);
    flex-direction: column;
    padding: var(--spacing-24);
    border-top: 1px solid var(--color-border);
    overflow-y: auto;
    z-index: 99;
  }
  .nav-overlay.is-visible {
    display: flex;
  }
  .nav-overlay .nav-link {
    font-size: 1.125rem;
    padding: var(--spacing-16) 0;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-overlay .mobile-cta-wrap {
    margin-top: var(--spacing-24);
  }
  .hero-stats-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 399px) {
  .container {
    padding-left: var(--spacing-16);
    padding-right: var(--spacing-16);
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .cookie-actions {
    width: 100%;
    flex-direction: column;
  }
  .cookie-btn {
    width: 100%;
    text-align: center;
  }
}