/* ==========================================================================
   ibranch Lab Consultants - Enterprise Scientific Consulting Platform
   Modern, Ultra-Responsive, Accessible (WCAG 2.1 AA) Stylesheet
   ========================================================================== */

/* --- Modern CSS Reset & Root Variables --- */
:root {
  /* Brand Navy / Deep Slate Palette */
  --color-navy-950: #081116;
  --color-navy-900: #0f1d24;
  --color-navy-850: #14252e;
  --color-navy-800: #1c323e;
  --color-navy-700: #254453;
  --color-navy-600: #33596c;

  /* Primary Brand Cyan/Teal (WCAG AA Compliant on White & Dark) */
  --color-primary: #0e7490;
  --color-primary-hover: #085a70;
  --color-primary-active: #064353;
  --color-primary-light: #06b6d4;
  --color-accent-teal: #14b8a6;
  --color-accent-cyan: #22d3ee;
  --color-accent-glow: rgba(14, 116, 144, 0.2);

  /* Neutrals (High Contrast Text & Clean Layouts) */
  --color-slate-900: #0f172a;
  --color-slate-800: #1e293b;
  --color-slate-700: #334155;
  --color-slate-600: #475569;
  --color-slate-500: #64748b;
  --color-slate-400: #94a3b8;
  --color-slate-300: #cbd5e1;
  --color-slate-200: #e2e8f0;
  --color-slate-100: #f1f5f9;
  --color-slate-50: #f8fafc;
  --color-white: #ffffff;

  /* Functional Status */
  --color-success: #059669;
  --color-success-bg: #ecfdf5;
  --color-warning: #d97706;
  --color-error: #dc2626;

  /* Typography Stack */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Fluid Font Sizes using clamp() */
  --text-xs: clamp(0.75rem, 0.72rem + 0.15vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.84rem + 0.18vw, 0.9375rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.38vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.35rem + 0.75vw, 1.875rem);
  --text-3xl: clamp(1.875rem, 1.65rem + 1.13vw, 2.375rem);
  --text-4xl: clamp(2.25rem, 1.95rem + 1.5vw, 3rem);
  --text-5xl: clamp(2.75rem, 2.3rem + 2.25vw, 3.875rem);

  /* Elevations & Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.1), 0 1px 2px -1px rgba(15, 23, 42, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.1), 0 2px 4px -2px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -4px rgba(15, 23, 42, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
  --shadow-card: 0 10px 30px -5px rgba(15, 29, 36, 0.08), 0 4px 12px -2px rgba(15, 29, 36, 0.04);
  --shadow-card-hover: 0 20px 35px -5px rgba(14, 116, 144, 0.18), 0 8px 16px -3px rgba(15, 29, 36, 0.08);

  /* Border Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Layout Limits */
  --max-width-container: 1240px;
  --max-width-narrow: 860px;
  --header-height: 76px;
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Box Sizing & Document Root --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-slate-800);
  background-color: var(--color-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* Word Wrapping to Prevent Overflows */
p, h1, h2, h3, h4, h5, h6, li, a, span, label {
  overflow-wrap: break-word;
  word-break: break-word;
}

/* Media Elements */
img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* Keyboard Accessible Focus Visible */
:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* Accessible Skip Navigation Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 9999;
  padding: 0.875rem 1.5rem;
  background-color: var(--color-navy-900);
  color: var(--color-white);
  font-weight: 700;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xl);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid var(--color-accent-cyan);
}

/* --- Container Utility --- */
.container {
  width: 100%;
  max-width: var(--max-width-container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

@media (min-width: 768px) {
  .container {
    padding-inline: 2rem;
  }
}

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

/* ==========================================================================
   Header & Navigation (Pinned Sticky, Glassmorphism)
   ========================================================================== */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background-color: rgba(15, 29, 36, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1rem;
}

/* Brand Logo (Starts at the header, is home link) */
.brand-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  min-height: 48px;
  min-width: 48px;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.brand-logo:hover {
  opacity: 0.9;
}

.brand-logo img {
  height: 46px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

/* Desktop Navigation */
.nav-wrapper {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.primary-nav {
  display: none;
}

@media (min-width: 1024px) {
  .primary-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
  }
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.875rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
  color: var(--color-white);
  background-color: rgba(14, 116, 144, 0.35);
  border-bottom: 2px solid var(--color-primary-light);
}

/* Header Action & Contact */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-phone-link {
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-xs);
  font-weight: 600;
  color: #cbd5e1;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

@media (min-width: 1200px) {
  .header-phone-link {
    display: inline-flex;
  }
}

.header-phone-link:hover {
  color: var(--color-accent-cyan);
}

.header-phone-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Mobile Hamburger Toggle */
.mobile-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

@media (min-width: 1024px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
}

.hamburger-icon {
  width: 24px;
  height: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  pointer-events: none;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* Hamburger active transformation */
.mobile-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Drawer Menu */
.mobile-drawer {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: var(--color-navy-900);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.5rem 1.25rem 2rem;
  box-shadow: var(--shadow-xl);
}

.mobile-drawer.is-open {
  display: block;
}

@media (min-width: 1024px) {
  .mobile-drawer {
    display: none !important;
  }
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  font-size: var(--text-base);
  font-weight: 600;
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.04);
  transition: all var(--transition-fast);
  min-height: 48px;
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--color-white);
  background-color: var(--color-primary);
}

.mobile-drawer-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ==========================================================================
   Buttons & Interactive Elements
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.02em;
  padding: 0.75rem 1.5rem;
  min-height: 48px;
  min-width: 48px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(14, 116, 144, 0.3);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-white);
  box-shadow: 0 6px 18px rgba(14, 116, 144, 0.45);
  transform: translateY(-1px);
}

.btn-primary:active {
  background-color: var(--color-primary-active);
  transform: translateY(0);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.35);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline-dark:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-light {
  background-color: var(--color-white);
  color: var(--color-navy-900);
  box-shadow: var(--shadow-sm);
}

.btn-light:hover {
  background-color: var(--color-slate-100);
  color: var(--color-navy-950);
}

.btn-full {
  width: 100%;
}

.btn-sm {
  min-height: 40px;
  padding: 0.5rem 1rem;
  font-size: var(--text-xs);
}

/* ==========================================================================
   Hero Section (Modern Dark Gradient with Brand Depth)
   ========================================================================== */
.hero-section {
  position: relative;
  background: radial-gradient(circle at 85% 15%, rgba(14, 116, 144, 0.3) 0%, transparent 60%),
              linear-gradient(135deg, var(--color-navy-950) 0%, var(--color-navy-900) 50%, var(--color-navy-850) 100%);
  color: var(--color-white);
  padding: clamp(3rem, 2.5rem + 3.5vw, 6.5rem) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3.5rem;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  align-self: flex-start;
  padding: 0.375rem 0.875rem;
  background-color: rgba(14, 116, 144, 0.25);
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent-cyan);
}

.hero-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.hero-title .text-highlight {
  background: linear-gradient(120deg, var(--color-accent-cyan), var(--color-accent-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: var(--text-lg);
  line-height: 1.6;
  color: #cbd5e1;
  max-width: 600px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
}

.hero-stats-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

@media (min-width: 480px) {
  .hero-stats-bar {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.stat-value {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-accent-cyan);
}

.stat-label {
  font-size: var(--text-xs);
  color: #94a3b8;
  font-weight: 500;
}

/* Hero Media Wrapper (Explicit aspect ratio, zero CLS) */
.hero-media-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.15);
  aspect-ratio: 16 / 10;
  background-color: var(--color-navy-850);
}

.hero-media-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.hero-media-wrapper:hover img {
  transform: scale(1.02);
}

/* ==========================================================================
   Page Headers (Sub-Pages)
   ========================================================================== */
.page-hero {
  background: linear-gradient(135deg, var(--color-navy-950) 0%, var(--color-navy-900) 65%, var(--color-navy-850) 100%);
  color: var(--color-white);
  padding: clamp(2.5rem, 2rem + 3vw, 4.5rem) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.page-hero-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 820px;
}

.page-hero-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.2;
}

.page-hero-lead {
  font-size: var(--text-lg);
  color: #cbd5e1;
  line-height: 1.6;
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-xs);
  color: var(--color-slate-400);
  list-style: none;
}

.breadcrumbs a {
  color: var(--color-slate-300);
}

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

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--color-slate-500);
}

/* ==========================================================================
   Section Layouts & Typography
   ========================================================================== */
.section {
  padding: clamp(3rem, 2.5rem + 3vw, 5.5rem) 0;
}

.section-alt {
  background-color: var(--color-slate-50);
}

.section-dark {
  background-color: var(--color-navy-900);
  color: var(--color-white);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: clamp(2rem, 1.75rem + 1.5vw, 3.5rem);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.section-header.text-start {
  text-align: start;
  margin-inline: 0;
}

.section-eyebrow {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}

.section-dark .section-eyebrow {
  color: var(--color-accent-cyan);
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-slate-900);
}

.section-dark .section-title {
  color: var(--color-white);
}

.section-description {
  font-size: var(--text-base);
  color: var(--color-slate-600);
  line-height: 1.65;
}

.section-dark .section-description {
  color: #cbd5e1;
}

/* ==========================================================================
   Card Systems & Grids
   ========================================================================== */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 480px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Core Service Card */
.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-cyan));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-primary-light);
}

.service-card:hover::before {
  opacity: 1;
}

.card-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background-color: rgba(14, 116, 144, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-icon-wrapper svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.service-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-slate-900);
  line-height: 1.35;
}

.service-card-text {
  font-size: var(--text-sm);
  color: var(--color-slate-600);
  line-height: 1.6;
  flex-grow: 1;
}

.card-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
  font-size: var(--text-xs);
  color: var(--color-slate-700);
}

.card-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.card-list svg {
  width: 14px;
  height: 14px;
  fill: var(--color-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

/* Feature Detail Block (Solutions / Janitorial) */
.feature-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 1.25rem + 1.25vw, 2.5rem);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.feature-block-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.feature-block-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-slate-900);
}

.feature-pill-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.625rem;
  background-color: rgba(14, 116, 144, 0.12);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  margin-top: 0.25rem;
}

.feature-grid-items {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .feature-grid-items {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-subitem {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-slate-50);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-slate-200);
}

.feature-subitem-icon {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-subitem-text {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-slate-800);
}

/* ==========================================================================
   Methodology & Ramp-Up Process Section
   ========================================================================== */
.methodology-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  position: relative;
}

@media (min-width: 768px) {
  .methodology-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .methodology-timeline {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  box-shadow: var(--shadow-sm);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 800;
  font-size: var(--text-sm);
}

.step-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-slate-900);
}

.step-description {
  font-size: var(--text-xs);
  color: var(--color-slate-600);
  line-height: 1.55;
}

/* ==========================================================================
   Industries We Serve Section
   ========================================================================== */
.industries-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .industries-container {
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
  }
}

.industries-graphic-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-slate-200);
  aspect-ratio: 4 / 3;
  background-color: var(--color-slate-100);
}

.industries-graphic-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.industries-list-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 480px) {
  .industries-list-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.industry-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.125rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-fast);
}

.industry-badge:hover {
  border-color: var(--color-primary);
  transform: translateX(3px);
}

.industry-badge svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.industry-badge span {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-slate-800);
}

/* ==========================================================================
   Certifications & Diversity Badges
   ========================================================================== */
.certifications-strip {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-slate-200);
  border-bottom: 1px solid var(--color-slate-200);
  padding: 2.5rem 0;
}

.certifications-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.certifications-heading {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-slate-500);
}

.certifications-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(1.5rem, 1.25rem + 1.5vw, 3.5rem);
}

.cert-badge-wrapper {
  background-color: var(--color-white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-slate-200);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-fast);
}

.cert-badge-wrapper:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.cert-badge-wrapper img {
  height: 56px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
}

/* ==========================================================================
   Testimonials & Social Proof
   ========================================================================== */
.testimonial-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.rating-stars {
  display: flex;
  gap: 0.25rem;
  color: #f59e0b;
}

.rating-stars svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.testimonial-quote {
  font-size: var(--text-base);
  color: var(--color-slate-700);
  line-height: 1.6;
  font-style: italic;
  flex-grow: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  border-top: 1px solid var(--color-slate-100);
  padding-top: 1rem;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-teal));
  color: var(--color-white);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-slate-900);
}

.author-role {
  font-size: var(--text-xs);
  color: var(--color-slate-500);
}

/* ==========================================================================
   FAQ & AEO / GEO Section
   ========================================================================== */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  margin-inline: auto;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: border-color var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-slate-300);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  text-align: start;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-slate-900);
  min-height: 48px;
}

.faq-trigger svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition-normal);
}

.faq-item[open] .faq-trigger svg,
.faq-item.is-active .faq-trigger svg {
  transform: rotate(180deg);
}

.faq-body {
  padding: 0 1.5rem 1.25rem;
  font-size: var(--text-sm);
  color: var(--color-slate-600);
  line-height: 1.65;
}

/* ==========================================================================
   Forms & Document Downloads
   ========================================================================== */
.form-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: clamp(1.75rem, 1.5rem + 1.25vw, 3rem);
  box-shadow: var(--shadow-card);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-slate-800);
}

.form-label .req {
  color: var(--color-error);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-sm);
  color: var(--color-slate-900);
  background-color: var(--color-slate-50);
  border: 1px solid var(--color-slate-300);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 48px;
}

.form-control:focus {
  background-color: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 116, 144, 0.15);
  outline: none;
}

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

.form-file-input {
  padding: 0.5rem;
  background-color: var(--color-slate-50);
  border: 1px dashed var(--color-slate-300);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-slate-500);
  margin-top: 0.25rem;
}

.form-feedback {
  display: none;
  font-size: var(--text-xs);
  color: var(--color-error);
  font-weight: 500;
}

.form-control.is-invalid {
  border-color: var(--color-error);
  background-color: #fef2f2;
}

.form-control.is-invalid ~ .form-feedback {
  display: block;
}

/* Download Document Cards */
.download-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

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

.download-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.doc-type-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  flex-shrink: 0;
}

.doc-type-badge.pdf {
  background-color: #fee2e2;
  color: #b91c1c;
}

.doc-type-badge.doc {
  background-color: #dbeafe;
  color: #1d4ed8;
}

.download-meta {
  display: flex;
  flex-direction: column;
}

.download-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-slate-900);
}

.download-subtext {
  font-size: var(--text-xs);
  color: var(--color-slate-500);
}

/* ==========================================================================
   Store & Product Sourcing Cards
   ========================================================================== */
.product-tier-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.product-tier-header {
  border-bottom: 1px solid var(--color-slate-100);
  padding-bottom: 1rem;
}

.tier-badge {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  font-size: var(--text-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  background-color: var(--color-slate-100);
  color: var(--color-slate-700);
  margin-bottom: 0.5rem;
}

.tier-badge.new {
  background-color: #dcfce7;
  color: #15803d;
}

.tier-badge.refurbished {
  background-color: #e0f2fe;
  color: #0369a1;
}

.tier-badge.certified {
  background-color: #fef3c7;
  color: #b45309;
}

/* ==========================================================================
   Contact Cards & Office Details
   ========================================================================== */
.contact-detail-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background-color: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
}

.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: rgba(14, 116, 144, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.contact-info-text {
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-500);
}

.contact-value {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-slate-900);
}

/* ==========================================================================
   Site Footer (Comprehensive, Multi-Column)
   ========================================================================== */
footer.site-footer {
  background-color: var(--color-navy-950);
  color: #cbd5e1;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: auto;
  padding: clamp(3rem, 2.5rem + 2.5vw, 4.5rem) 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 3rem;
  }
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-col-title {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-white);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 0.5rem;
  display: inline-block;
  align-self: flex-start;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: var(--text-sm);
  color: #cbd5e1;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  fill: var(--color-accent-cyan);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-contact-item a {
  color: #cbd5e1;
}

.footer-contact-item a:hover {
  color: var(--color-accent-cyan);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: center;
  font-size: var(--text-xs);
  color: #64748b;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    text-align: start;
  }
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  list-style: none;
}

.footer-legal-links a {
  color: #94a3b8;
  font-size: var(--text-xs);
}

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

/* ==========================================================================
   Back-to-Top Button (Fixed, Accessible)
   ========================================================================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  min-width: 48px;
  min-height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal), background-color var(--transition-fast);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* ==========================================================================
   Accessible Modal System (Terms & Privacy Dialogs)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background-color: rgba(8, 17, 22, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  overflow-y: auto;
}

.modal-overlay.is-active {
  display: flex;
}

.modal-dialog {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  max-width: 780px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  border: 1px solid var(--color-slate-200);
  animation: modalEnter 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalEnter {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--color-slate-200);
}

.modal-title {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-slate-900);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--color-slate-500);
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.modal-close-btn:hover {
  background-color: var(--color-slate-100);
  color: var(--color-slate-900);
}

.modal-close-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.modal-body {
  padding: 1.75rem;
  overflow-y: auto;
  font-size: var(--text-sm);
  color: var(--color-slate-700);
  line-height: 1.7;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.modal-body h3 {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-slate-900);
  margin-top: 0.75rem;
}

.modal-footer {
  padding: 1rem 1.75rem;
  border-top: 1px solid var(--color-slate-200);
  display: flex;
  justify-content: flex-end;
  background-color: var(--color-slate-50);
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

/* ==========================================================================
   Interactive Tab Component
   ========================================================================== */
.tab-nav {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid var(--color-slate-200);
  margin-bottom: 2rem;
  overflow-x: auto;
  padding-bottom: 2px;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 0.75rem 1.25rem;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-slate-600);
  border-bottom: 3px solid transparent;
  margin-bottom: -4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  min-height: 48px;
}

.tab-btn:hover {
  color: var(--color-primary);
}

.tab-btn.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

/* ==========================================================================
   Utilities & Accessibility
   ========================================================================== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--color-slate-500);
}