:root {
  /* Colors - Minimal & Professional */
  --primary-color: #000000;
  --bg-primary: #ffffff;
  --bg-secondary: #f9f9fb;
  --accent-color: #1a1a1a;
  /* Deeper black for primary elements */
  --accent-blue: #2563eb;
  /* Tactical blue for accents */
  --border-color: #eaeaea;
  --border-hover: #000000;
  --text-main: #000000;
      --text-muted: #555555;
  /* Typography */
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing - Intentional Rhythm */
  --spacing-xs: 0.5rem;
  /* 8px */
  --spacing-sm: 1rem;
  /* 16px */
  --spacing-md: 2rem;
  /* 32px */
  --spacing-lg: 6rem;
  /* 96px - Increased for breathing room */
  --spacing-xl: 10rem;
  /* 160px - Generous section spacing */

  /* Surface Refinements */
  --border-radius: 2px;
  /* Even sharper minimal look */
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  /* Smoother, more precise */
}

/* Base Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
  will-change: transform, opacity;
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Typography System */
h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.045em;
  color: var(--text-main);
  text-align: left;
}

h1 {
  font-size: clamp(3.5rem, 10vw, 6.5rem);
  font-weight: 900;
  letter-spacing: -0.06em;
}

h2 {
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.05em;
}

h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.04em;
}

p {
  color: var(--text-muted);
  max-width: 65ch;
  font-size: 1.125rem;
  line-height: 1.75;
  font-weight: 400;
}

.label {
  font-family: monospace;
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent-blue);
  margin-bottom: var(--spacing-sm);
  display: block;
}

/* Editorial System */
.article-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.article-body {
  max-width: 680px;
  margin: 0 auto;
  font-size: 1.125rem;
  line-height: 1.8;
}

.article-body h2 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  font-size: 2rem;
}

.article-body p {
  margin-bottom: var(--spacing-md);
  max-width: 100%;
}

.article-body ul, .article-body ol {
  margin-bottom: var(--spacing-md);
  padding-left: 1.5rem;
}

.article-body li {
  margin-bottom: var(--spacing-xs);
  color: var(--text-muted);
}

.cta-inline {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  border-radius: var(--border-radius);
  text-align: center;
}

.cta-inline h3 {
  text-align: center;
  margin-bottom: var(--spacing-xs);
}

.cta-inline p {
  text-align: center;
  margin: 0 auto var(--spacing-md);
}

/* Form System - Modern & Premium */
.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-label {
  display: block;
  font-family: monospace;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 1rem 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: var(--font-main);
  font-size: 0.9375rem;
  color: var(--text-main);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-blue);
  background: var(--bg-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.05);
}

.form-control::placeholder {
  color: #999;
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1.25rem center;
  padding-right: 3rem;
}

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

.form-card {
  background: var(--bg-primary);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: 0 30px 60px -30px rgba(0,0,0,0.05);
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.125rem 2.75rem;
  font-weight: 700;
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition);
  border: 1px solid var(--accent-color);
  cursor: pointer;
  border-radius: var(--border-radius);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

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

.btn-primary:hover {
  background-color: var(--text-main);
  transform: translateY(-1px);
  box-shadow: 0 10px 20px -10px rgba(0,0,0,0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--text-main);
  background-color: var(--bg-secondary);
}

/* Card System */
.card, .case-card, .service-card {
  transition: var(--transition);
}

.card:hover, .case-card:hover {
  border-color: var(--accent-blue);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(0,0,0,0.1);
}

/* Icon System */
svg {
  transition: var(--transition);
}

.card:hover svg, .service-card:hover svg {
  transform: scale(1.1);
  color: var(--accent-blue);
  opacity: 1 !important;
}

/* Global Header */
.header {
  height: 90px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: var(--transition);
}

.header.scrolled {
  height: 70px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.05);
}

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

.logo-area {
  border: 2px solid var(--primary-color);
  padding: 5px 15px;
  text-decoration: none;
}

.logo-text {
  font-weight: 900;
  font-size: 1.125rem;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
}

.nav-links a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  transition: var(--transition);
  position: relative;
  padding: 5px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text-main);
  transition: var(--transition);
}

.nav-links a:hover::after {
  width: 100%;
}

.header-actions .btn-header {
  padding: 0.6rem 1.5rem;
  font-size: 0.75rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background: white;
  z-index: 999;
  transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu.active {
  right: 0;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  text-align: center;
}

.mobile-nav a {
  font-size: 2rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--text-main);
  text-transform: uppercase;
}

/* Layout Helpers */
.flex {
  display: flex;
  gap: var(--spacing-md);
}

.grid {
  display: grid;
  gap: var(--spacing-md);
}

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

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Global CTA Section (Special) */
.global-cta {
  text-align: center;
  border-top: 1px solid var(--border-color);
}

.global-cta h2,
.global-cta p {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.footer {
  background: white;
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-lg) 0 var(--spacing-md);
    min-height: 280px; /* CLS fix - prevents layout shift */
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
  color: var(--text-main);
  font-size: 0.75rem;
  margin-bottom: var(--spacing-md);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-col a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: var(--transition);
}

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

.footer-bottom {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

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

@media (max-width: 768px) {

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .header .nav-links,
  .header .btn-header {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: var(--spacing-lg) 0;
  }
}

/* ============================================
   COMPREHENSIVE MOBILE RESPONSIVE STYLES
   ============================================ */

/* Tablet: 768px - 1024px */
@media (max-width: 1024px) {
  .container {
    padding: 0 1.5rem;
  }
  .header .nav-links {
    gap: 1.25rem;
  }
  .header .btn-header {
    padding: 0.5rem 0.875rem;
    font-size: 0.75rem;
  }
  h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
  h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
}

/* Mobile: max 768px */
@media (max-width: 768px) {

  /* -- Container -- */
  .container {
    padding: 0 1.1rem;
    max-width: 100%;
  }

  /* -- Header -- */
  .header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
  }
  .header .nav-links,
  .header .btn-header {
    display: none !important;
  }
  .mobile-toggle {
    display: flex !important;
  }
  .mobile-nav {
    width: 100%;
  }

  /* -- Typography Scale -- */
  h1 {
    font-size: clamp(2rem, 9vw, 3.5rem) !important;
    line-height: 1.1;
  }
  h2 {
    font-size: clamp(1.5rem, 6vw, 2.25rem) !important;
  }
  h3 {
    font-size: clamp(1.25rem, 5vw, 1.75rem) !important;
  }
  p {
    font-size: 1rem;
    line-height: 1.7;
  }

  /* -- Sections & Spacing -- */
  .section {
    padding: 3rem 0;
  }
  .section.insights-hero {
    padding: 2.5rem 0;
  }

  /* -- Grids collapse to single column -- */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr !important;
    gap: 2rem !important;
  }

  /* -- Buttons -- */
  .btn,
  .btn-primary,
  .btn-secondary {
    width: 100%;
    text-align: center;
    padding: 0.875rem 1.25rem;
    font-size: 0.875rem;
    box-sizing: border-box;
  }

  /* -- Insights page: post cards -- */
  .post-card {
    padding: 1.5rem 0 !important;
  }
  .post-card img {
    height: 220px !important;
  }
  .post-card h3 {
    font-size: 1.5rem !important;
  }

  /* -- Insight single article -- */
  .article-container {
    max-width: 100% !important;
    padding: 0;
  }
  .article-body {
    font-size: 1rem !important;
    line-height: 1.75;
  }
  .article-body img {
    margin: 1rem 0;
  }
  .cta-inline {
    padding: 1.5rem 1rem;
    margin-top: 2.5rem;
  }
  .cta-inline h2 {
    font-size: 1.35rem !important;
  }

  /* -- Footer -- */
  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 2rem;
  }
  .footer-col {
    padding: 0;
  }
  .footer-bottom {
    text-align: center;
    font-size: 0.75rem;
    padding-top: 1.5rem;
  }

  /* -- Label badges -- */
  .label {
    font-size: 0.7rem;
    letter-spacing: 0.1em;
  }

  /* -- Horizontal flex layouts -- */
  [style*="display: flex"][style*="justify-content: center"] {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  /* -- Hero sections -- */
  .hero,
  [class*="hero"] {
    min-height: auto !important;
    padding: 3rem 0 2rem !important;
  }

  /* -- Case study / service cards -- */
  .service-card,
  .case-card,
  .stat-card {
    padding: 1.5rem;
  }

  /* -- Overflow fix -- */
  body {
    overflow-x: hidden;
  }
  img {
    max-width: 100%;
    height: auto;
  }
  table {
    width: 100%;
    display: block;
    overflow-x: auto;
  }
}

/* Small mobile: max 480px */
@media (max-width: 480px) {
  .container {
    padding: 0 0.875rem;
  }
  h1 {
    font-size: clamp(1.75rem, 10vw, 2.5rem) !important;
  }
  h2 {
    font-size: clamp(1.35rem, 7vw, 1.75rem) !important;
  }
  .section {
    padding: 2rem 0;
  }
  .logo {
    font-size: 0.95rem !important;
  }
  .post-card img {
    height: 180px !important;
  }
  .cta-inline {
    padding: 1.25rem 0.875rem;
  }
}

/* Form Styles */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-primary);
    color: var(--text-main);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(26, 26, 26, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.authority-list {
    list-style: none;
    padding: 0;
}

.authority-list li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
}

.authority-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}