/* Prime Sphere Farms – Design Proposal Implementation */
/* NEPC-aligned | Trade-finance ready | Enterprise-grade */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;600&family=Source+Serif+4:ital,wght@0,400;0,600;0,700;1,400&display=swap');

:root {
  /* Refined Color Palette (Design Proposal) */
  --color-navy: #0c1322;
  --color-navy-light: #1e2d47;
  --color-navy-muted: #2d3a52;
  --color-white: #ffffff;
  --color-warm-white: #faf9f7;
  --color-off-white: #f8f9fa;
  --color-earth: #7a6b5a;
  --color-success: #2d5a3d;
  --color-accent: #b8860b;
  --color-accent-hover: #9a7209;
  --color-text: #0c1322;
  --color-text-muted: #5a5a5a;
  --color-text-tertiary: #8a8a8a;
  --color-border: #e0e0dc;
  --color-border-light: #f0efec;
  --shadow-sm: 0 1px 3px rgba(12, 19, 34, 0.06);
  --shadow-md: 0 4px 12px rgba(12, 19, 34, 0.08);
  --shadow-lg: 0 8px 24px rgba(12, 19, 34, 0.1);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Source Serif 4', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  --max-width: 1200px;
  --content-width: 720px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  --radius: 6px;
  --radius-lg: 8px;
  --transition: 0.2s ease;
  --transition-slow: 0.3s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-warm-white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--color-navy);
  color: white;
  font-weight: 600;
  z-index: 1000;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

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

a {
  color: var(--color-navy);
  text-decoration: none;
  transition: color var(--transition);
}

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

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
[type="submit"]:focus-visible,
[type="button"]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Header */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-md) 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.02em;
  color: var(--color-navy);
}

.logo img {
  display: block;
  height: 40px;
  width: auto;
  max-width: 240px;
}

.logo a {
  color: inherit;
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo a:hover {
  text-decoration: none;
  color: var(--color-navy);
  opacity: 0.9;
}

.nav-main {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-main > li {
  position: relative;
}

.nav-main > li > a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.9375rem;
  text-decoration: none;
  position: relative;
  padding: 0.25rem 0;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-main > li > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-main > li > a:hover::after {
  width: 100%;
}

.nav-main > li > a:hover {
  color: var(--color-navy);
}

.nav-main > li.nav-active > a,
.nav-main > li.nav-has-dropdown.nav-active > a {
  color: var(--color-accent);
  font-weight: 600;
}

.nav-main > li.nav-active > a::after,
.nav-main > li.nav-has-dropdown.nav-active > a::after {
  width: 100%;
  background: var(--color-accent);
}

.nav-main > li.nav-cta > a::after {
  display: none;
}

.nav-main > li.nav-cta.nav-active .btn-nav {
  box-shadow: 0 0 0 2px var(--color-navy);
}

/* Dropdown */
.nav-has-dropdown > a::before {
  content: '▾';
  font-size: 0.6em;
  opacity: 0.7;
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  padding: 0.5rem 0;
  margin-top: 0.25rem;
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 200;
}

.nav-has-dropdown:hover .nav-dropdown,
.nav-has-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}

.nav-dropdown a:hover {
  background: var(--color-off-white);
  color: var(--color-accent);
}

.nav-dropdown a::after {
  display: none;
}

/* Products mega menu (desktop only) */
.nav-mega {
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  min-width: 320px;
  width: max-content;
  max-width: 720px;
  padding: 0;
  overflow: hidden;
}

.nav-has-mega:hover .nav-mega,
.nav-has-mega:focus-within .nav-mega {
  transform: translateX(-50%) translateY(0);
}

.nav-mega-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: var(--spacing-md) var(--spacing-lg);
}

.nav-mega-col h4 {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin: 0 0 0.5rem 0;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--color-border-light);
}

.nav-mega-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-mega-col li {
  margin: 0;
}

.nav-mega-col a {
  display: block;
  padding: 0.35rem 0;
  font-size: 0.8125rem;
  color: var(--color-text);
}

.nav-mega-col a:hover {
  color: var(--color-accent);
}

.nav-mega-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.75rem var(--spacing-lg);
  background: var(--color-off-white);
  border-top: 1px solid var(--color-border-light);
}

.nav-mega-footer a {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-accent);
}

.nav-mega-footer a:hover {
  text-decoration: underline;
}

/* Nav CTA button */
.nav-cta .btn-nav {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  min-height: 36px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  min-width: 44px;
  min-height: 44px;
}

/* Hero – with background image support */
.hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 50%, var(--color-navy-muted) 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) 1.5rem;
  text-align: center;
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
}

.hero.has-bg {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero.has-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(12,19,34,0.4) 0%, rgba(12,19,34,0.85) 100%);
  z-index: 0;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
  z-index: 0;
}

.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.875rem, 4.5vw, 2.75rem);
  font-weight: 700;
  margin: 0 0 var(--spacing-md);
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.hero p {
  font-size: 1.125rem;
  line-height: 1.7;
  opacity: 0.95;
  margin: 0 0 var(--spacing-xl);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.hero-metric {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  margin-top: var(--spacing-md);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius);
  transition: all var(--transition);
  text-decoration: none;
  border: none;
  cursor: pointer;
  min-height: 44px;
  min-width: 44px;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-navy);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.6);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-navy);
  border: 2px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn:disabled,
.btn-primary:disabled {
  background: var(--color-border);
  color: var(--color-text-tertiary);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Main content */
.main {
  padding: var(--spacing-3xl) 1.5rem;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.container--narrow {
  max-width: var(--content-width);
}

.page-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--color-navy);
  margin: 0 0 var(--spacing-xs);
  letter-spacing: -0.02em;
}

.page-header p {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 1.0625rem;
}

/* Breadcrumbs */
.breadcrumbs {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.breadcrumbs a {
  color: var(--color-text-muted);
}

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

.breadcrumbs span {
  margin: 0 0.5rem;
  color: var(--color-border);
}

.sitemap-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem 0;
}

.sitemap-list li {
  margin: 0.25rem 0;
}

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

.breadcrumbs .current {
  color: var(--color-text);
  font-weight: 500;
}

/* Sections */
.section {
  margin-bottom: var(--spacing-2xl);
}

.section.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}

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

.section h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-navy);
  margin: 0 0 var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.phase-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--color-accent);
  color: var(--color-navy);
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: 50%;
  margin-right: 0.5rem;
  vertical-align: middle;
}

.section-intro {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  max-width: 72ch;
}

/* Stat badges (About Us) */
.stat-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
}

.stat-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--color-border-light);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-navy);
}

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

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}

.card h3 {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 var(--spacing-sm);
  color: var(--color-navy);
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Data tables */
.table-wrap {
  overflow-x: auto;
  margin: var(--spacing-md) 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

th, td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

th {
  background: var(--color-navy);
  color: var(--color-white);
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

tbody tr:nth-child(even) {
  background: var(--color-warm-white);
}

tbody tr:hover td {
  background: rgba(12, 19, 34, 0.03);
}

tbody tr:last-child td {
  border-bottom: none;
}

/* Volume mode cards – with semantic icons */
.volume-modes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.volume-mode {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.volume-mode:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.volume-mode-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.volume-mode-icon svg {
  width: 28px;
  height: 28px;
}

.volume-mode h4 {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  color: var(--color-navy);
}

.volume-mode .volume {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.volume-mode p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* Container comparison – with silhouettes */
.container-comparison {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.container-card {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.container-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.container-silhouette {
  width: 100%;
  max-width: 120px;
  height: 60px;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.container-silhouette svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
}

.container-card .type {
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
}

.container-card .capacity {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-accent);
}

.container-card .capacity-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* Cost structure – icon flow */
.cost-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-lg);
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.cost-flow-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  min-width: 80px;
}

.cost-flow-item .icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.cost-flow-item .icon svg {
  width: 24px;
  height: 24px;
}

.cost-flow-item span {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: center;
}

.cost-flow-arrow {
  color: var(--color-border);
  font-size: 1rem;
  flex-shrink: 0;
}

/* Mobile: card-based table alternative */
.table-cards {
  display: none;
}

.table-card {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
}

.table-card .row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.table-card .row:last-child {
  border-bottom: none;
}

.table-card .label {
  font-weight: 600;
  color: var(--color-navy);
  font-size: 0.875rem;
}

/* Lists */
ul.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

ul.check-list li {
  padding: 0.5rem 0 0.5rem 1.75rem;
  position: relative;
}

ul.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

/* Imagery */
.img-break {
  width: 100%;
  height: 320px;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-muted) 100%);
  margin: var(--spacing-2xl) 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.4);
  font-size: 0.875rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.img-break img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Forms */
.form-section {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.form-intro {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
}

.form-intro p {
  color: var(--color-text-muted);
  margin: 0 0 var(--spacing-sm);
  font-size: 1rem;
}

.form-trust {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--spacing-sm);
}

.form-trust svg {
  flex-shrink: 0;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  min-height: 48px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group input:focus-visible,
.form-group select:focus-visible,
.form-group textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 0;
  box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.15);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: #c53030;
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit-status {
  margin-top: 0.5rem;
  font-size: 0.9375rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

/* Form grouping */
.form-group-block {
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-lg);
  background: var(--color-warm-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border-light);
}

.form-group-block h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-navy);
  margin: 0 0 var(--spacing-md);
}

.form-consent {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.form-consent a {
  text-decoration: underline;
}

/* Footer */
.site-footer {
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--spacing-2xl) 1.5rem var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-grid h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  margin: 0 0 var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.8);
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-grid li {
  margin-bottom: 0.5rem;
}

.footer-grid a {
  color: rgba(255,255,255,0.85);
}

.footer-grid a:hover {
  color: var(--color-white);
}

.footer-cta {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-accent);
  color: var(--color-navy) !important;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background var(--transition);
}

.footer-cta:hover {
  background: var(--color-accent-hover);
  color: var(--color-navy) !important;
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255,255,255,0.15);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.75);
}

.footer-bottom a {
  color: rgba(255,255,255,0.9);
}

/* Divider */
.section-divider {
  height: 1px;
  background: var(--color-border-light);
  margin: var(--spacing-2xl) 0;
}

/* Disclaimer */
.disclaimer {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

/* Portfolio */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: center;
  margin-bottom: var(--spacing-xl);
}

.filter-label {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.filter-select,
.filter-search {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  min-width: 180px;
}

.filter-search {
  flex: 1;
  min-width: 200px;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.portfolio-card {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.portfolio-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}

.portfolio-card-image {
  height: 160px;
  background: linear-gradient(135deg, var(--color-navy-muted) 0%, var(--color-navy-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.placeholder-icon {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(255,255,255,0.3);
}

.portfolio-card-body {
  padding: var(--spacing-md);
}

.portfolio-card-category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.portfolio-card-title {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0 0 var(--spacing-xs);
  line-height: 1.3;
}

.portfolio-card-title a {
  color: var(--color-navy);
  text-decoration: none;
}

.portfolio-card-title a:hover {
  color: var(--color-accent);
}

.portfolio-card-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--spacing-sm);
  line-height: 1.5;
}

.portfolio-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.hs-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--color-off-white);
  color: var(--color-text-muted);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

.card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
}

.portfolio-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--color-text-muted);
}

.download-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.download-list li {
  margin-bottom: 0.5rem;
}

.download-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
}

.download-link::before {
  content: '↓';
  font-size: 0.875rem;
  color: var(--color-accent);
}

.print-hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

.compliance-block {
  background: var(--color-off-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.compliance-block h4 {
  margin: 0 0 var(--spacing-xs);
  font-size: 1rem;
}

.flex-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.gap-1 { gap: var(--spacing-sm); }
.mt-1 { margin-top: var(--spacing-md); }

/* Product detail page */
.product-detail-header {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.product-detail-image {
  width: 200px;
  min-width: 200px;
  height: 160px;
  background: linear-gradient(135deg, var(--color-navy-muted) 0%, var(--color-navy-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail-image .placeholder-icon {
  font-size: 2.5rem;
}

.product-spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-md) 0;
}

.product-spec-table th,
.product-spec-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

.product-spec-table th {
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  width: 35%;
}

.product-spec-table td {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
}

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

.hs-directory-table th,
.hs-directory-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

.hs-directory-table th {
  font-weight: 600;
  background: var(--color-off-white);
  color: var(--color-text);
}

.hs-directory-table code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  background: var(--color-off-white);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
}

@media (max-width: 768px) {
  .product-spec-table th,
  .product-spec-table td {
    display: block;
    width: 100%;
    padding: 0.5rem 0;
  }

  .product-spec-table th {
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border-light);
  }

  .product-spec-table tr:first-child th {
    border-top: none;
  }
}

/* Utility */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: var(--spacing-lg); }

/* Responsive */
@media (max-width: 1024px) {
  .volume-modes {
    grid-template-columns: repeat(2, 1fr);
  }

  .container-comparison {
    grid-template-columns: repeat(2, 1fr);
  }

  .cost-flow {
    justify-content: flex-start;
  }
}

/* Mobile nav: hamburger at 1024px (6 nav items need more room) */
@media (max-width: 1024px) {
  .nav-main {
    display: none;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  .nav-main.is-open {
    display: flex;
    opacity: 1;
    transform: translateY(0);
  }

  .nav-main a {
    padding: 0.75rem 0;
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  .nav-main a::after {
    display: none;
  }

  /* Mobile: dropdowns as expandable sections */
  .nav-has-dropdown {
    border-bottom: 1px solid var(--color-border-light);
  }

  .nav-has-dropdown > a {
    min-height: 48px;
    padding: 0.75rem 0;
    justify-content: space-between;
  }

  .nav-has-dropdown > a::before {
    content: '›';
    order: 1;
    transition: transform var(--transition);
  }

  .nav-has-dropdown.is-expanded > a::before {
    transform: rotate(90deg);
  }

  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 0.5rem 1rem;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav-has-dropdown.is-expanded .nav-dropdown {
    max-height: 300px;
  }

  .nav-has-mega.is-expanded .nav-mega {
    max-height: 85vh;
    overflow-y: auto;
  }

  .nav-mega-inner {
    grid-template-columns: 1fr;
    padding: 0.5rem 0 0.5rem 1rem;
  }

  .nav-mega-col h4 {
    margin-top: 0.75rem;
  }

  .nav-mega-col h4:first-child {
    margin-top: 0;
  }

  .nav-mega-footer {
    flex-direction: column;
    padding: 0.75rem 1rem;
    gap: 0.5rem;
  }

  .nav-dropdown a {
    padding: 0.5rem 0;
    min-height: 44px;
    display: flex;
    align-items: center;
    font-size: 0.9375rem;
  }

  .nav-cta {
    padding-top: 0.75rem;
    margin-top: 0.5rem;
    border-top: 1px solid var(--color-border);
  }

  .nav-cta .btn-nav {
    width: 100%;
    justify-content: center;
    min-height: 48px;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  body.nav-open {
    overflow: hidden;
  }
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .table-wrap table {
    display: none;
  }

  .table-cards {
    display: block;
  }

  .volume-modes {
    grid-template-columns: 1fr;
  }

  .container-comparison {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: var(--spacing-2xl) 1.5rem;
    min-height: 360px;
  }

  .cost-flow {
    flex-direction: column;
    align-items: flex-start;
  }

  .cost-flow-arrow {
    transform: rotate(90deg);
  }
}

@media (max-width: 480px) {
  .hero-ctas {
    flex-direction: column;
  }

  .hero-ctas .btn {
    width: 100%;
  }
}

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-navy);
  color: var(--color-white);
  border-radius: 50%;
  font-size: 1.25rem;
  text-decoration: none;
  box-shadow: var(--shadow-md);
  z-index: 90;
  transition: opacity var(--transition), transform var(--transition);
}

.back-to-top:hover {
  background: var(--color-navy-light);
  transform: translateY(-2px);
}

/* Print styles */
@media print {
  .site-header,
  .site-footer,
  .skip-link,
  .nav-toggle,
  .hero-ctas,
  .btn,
  .breadcrumbs,
  .section.reveal {
    /* Ensure visibility */
  }

  .site-header,
  .site-footer {
    box-shadow: none;
    border-bottom: 1px solid #ccc;
  }

  .nav-main {
    display: none !important;
  }

  .nav-toggle {
    display: none !important;
  }

  .skip-link,
  .hero-ctas,
  .btn,
  .back-to-top {
    display: none !important;
  }

  body {
    background: #fff;
  }

  .hero {
    background: #0c1322 !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }

  .card,
  .volume-mode,
  .container-card,
  .table-wrap {
    break-inside: avoid;
  }

  a[href]::after {
    content: none;
  }
}