/* ==========================================================================
   UNIFIED DESIGN SYSTEM - 202 Digital Marketing Agency
   Modern B2B SaaS Design with Transparency & Human Connection
   ========================================================================== */

/* Local Font Definitions
   ========================================================================== */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/inter-v19-latin-ext-regular.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/inter-v19-latin-ext-italic.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/inter-v19-latin-ext-500.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../fonts/inter-v19-latin-ext-600.woff2') format('woff2');
}

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

/* Modern B2B SaaS Design Tokens
   ========================================================================== */
:root {
  /* Professional Blue Palette (Trust & Authority) */
  --color-primary: #1e3a8a;
  --color-primary-light: #3b82f6;
  --color-primary-dark: #1e40af;
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-600: #2563eb;
  --color-primary-700: #1d4ed8;
  --color-primary-800: #1e40af;
  --color-primary-900: #1e3a8a;

  /* Modern Gray Scale (Clean & Professional) */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Warm Accent Colors (Human Connection) */
  --color-warm-orange: #f97316;
  --color-warm-orange-light: #fb923c;
  --color-warm-orange-dark: #ea580c;
  --color-warm-amber: #f59e0b;
  --color-warm-emerald: #059669;
  --color-warm-rose: #e11d48;

  /* Semantic Colors */
  --color-white: #ffffff;
  --color-light: var(--color-gray-50);
  --color-border: var(--color-gray-200);
  --color-text: var(--color-gray-900);
  --color-text-light: var(--color-gray-600);
  --color-text-muted: var(--color-gray-500);
  --color-success: var(--color-warm-emerald);
  --color-warning: var(--color-warm-amber);
  --color-error: var(--color-warm-rose);

  /* Spacing Scale (8px base unit) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 40px;
  --space-3xl: 48px;
  --space-4xl: 64px;
  --space-5xl: 80px;
  --space-6xl: 96px;

  /* Typography Scale */
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 30px;
  --font-size-4xl: 36px;
  --font-size-5xl: 48px;
  --font-size-6xl: 60px;
  --font-size-7xl: 72px;

  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;

  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;

  /* Letter Spacing */
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0em;
  --letter-spacing-wide: 0.025em;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Containers */
  --container-max-width: 1200px;
  --container-padding: var(--space-lg);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

/* Base Typography
   ========================================================================== */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}

/* Layout Utilities
   ========================================================================== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Header & Navigation
   ========================================================================== */
.header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  backdrop-filter: blur(8px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--container-padding);
}

.logo-image {
  height: 32px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
}

.nav-link {
  color: var(--color-text-light);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  transition: var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 50%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-warm-orange));
  transition: var(--transition-base);
  transform: translateX(-50%);
}

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

.cta-nav {
  background: var(--color-warm-orange);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  transition: var(--transition-base);
}

.cta-nav:hover {
  background: var(--color-warm-orange-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

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

/* Transparency Banner */
.transparency-banner {
  background: linear-gradient(135deg, var(--color-primary-900) 0%, var(--color-primary-700) 100%);
  color: var(--color-white);
  padding: var(--space-xl) 0;
  position: relative;
  overflow: hidden;
}

.transparency-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.transparency-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.transparency-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-md);
}

.transparency-subtitle {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--line-height-relaxed);
}

/* Breadcrumbs Navigation
   ========================================================================== */
.breadcrumbs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  padding: var(--space-md) 0;
  font-size: var(--font-size-sm);
}

.breadcrumb-link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: var(--transition-base);
}

.breadcrumb-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--color-text-muted);
  user-select: none;
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

/* Hero Section */
.hero-modern {
  padding: var(--space-6xl) 0;
  background: linear-gradient(180deg, var(--color-primary-50) 0%, var(--color-white) 100%);
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-xl);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-light);
  margin-bottom: var(--space-5xl);
  line-height: var(--line-height-relaxed);
}

.hero-cta {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* Stats Section
   ========================================================================== */
.stats-section {
  padding: var(--space-5xl) 0;
  background: var(--color-white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.stat-card {
  text-align: center;
  padding: var(--space-xl);
  background: var(--color-light);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
}

/* Benefits Section
   ========================================================================== */
.benefits-section {
  padding: var(--space-6xl) 0;
  background: var(--color-light);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}

.benefit-card {
  background: var(--color-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
  display: flex;
  gap: var(--space-lg);
}

.benefit-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
}

.benefit-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: var(--color-primary-50);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.benefit-content {
  flex: 1;
}

.benefit-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.benefit-description {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
}

/* Process Section
   ========================================================================== */
.process-section {
  padding: var(--space-6xl) 0;
  background: var(--color-white);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}

.process-step {
  padding: var(--space-2xl);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-light);
  transition: var(--transition-base);
  position: relative;
}

.process-step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-lg);
}

.step-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.step-description {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
}

/* Campaign Types Section
   ========================================================================== */
.campaign-types-section {
  padding: var(--space-6xl) 0;
  background: var(--color-light);
}

.campaign-types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
}

.campaign-type-card {
  background: var(--color-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
}

.campaign-type-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-200);
}

.campaign-type-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.campaign-type-description {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}

.campaign-type-features {
  list-style: none;
  padding: 0;
}

.campaign-type-features li {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-border);
}

.campaign-type-features li:last-child {
  border-bottom: none;
}

/* Trust Section */
.trust-section {
  padding: var(--space-5xl) 0;
  background: var(--color-white);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-2xl);
  text-align: center;
}

.trust-item {
  padding: var(--space-xl);
}

.trust-number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.trust-label {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  font-weight: var(--font-weight-medium);
}

/* Button System - Trust Over Aggression */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md) var(--space-2xl);
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-large {
  padding: var(--space-lg) var(--space-3xl);
  font-size: var(--font-size-lg);
}

.btn-primary {
  background: var(--color-warm-orange);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-warm-orange-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

.btn-ghost {
  background: transparent;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  background: var(--color-gray-50);
  color: var(--color-text);
  border-color: var(--color-gray-300);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--space-5xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  line-height: var(--line-height-tight);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--line-height-relaxed);
}

/* Services Section */
.services-section {
  padding: var(--space-6xl) 0;
  background: var(--color-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-3xl);
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  position: relative;
  border: 1px solid var(--color-border);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-100);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-warm-orange));
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  opacity: 0;
  transition: var(--transition-base);
}

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

.service-header {
  margin-bottom: var(--space-xl);
}

.service-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-primary-50), var(--color-primary-100));
  border-radius: var(--radius-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

.service-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-warm-orange), var(--color-warm-orange-light));
  color: var(--color-white);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.service-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.service-description {
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-xl);
}

.service-features {
  margin-bottom: var(--space-xl);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

.feature-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.service-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Expertise Section */
.expertise-section {
  padding: var(--space-6xl) 0;
  background: var(--color-white);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-4xl);
}

.expertise-card {
  text-align: center;
  padding: var(--space-4xl) var(--space-3xl);
  background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-white) 100%);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-primary-100);
  transition: var(--transition-base);
}

.expertise-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-2xl);
  background: linear-gradient(135deg, var(--color-primary-100) 0%, var(--color-white) 100%);
}

.expertise-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 96px;
  height: 96px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-xl);
  color: var(--color-white);
  margin: 0 auto var(--space-xl);
  box-shadow: var(--shadow-lg);
}

.expertise-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.expertise-description {
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-xl);
}

.expertise-proof {
  text-align: left;
}

.proof-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

.proof-item::before {
  content: '✓';
  color: var(--color-success);
  font-weight: var(--font-weight-semibold);
}

/* Case Studies Section */
.case-studies-section {
  padding: var(--space-6xl) 0;
  background: var(--color-light);
}

.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-3xl);
}

.case-study-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border: 1px solid var(--color-border);
}

.case-study-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary-100);
}

.case-study-metrics {
  display: flex;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.metric {
  text-align: center;
}

.metric-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.metric-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}

.case-study-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.case-study-description {
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}

.case-study-tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.tag {
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

/* Insights Section */
.insights-section {
  padding: var(--space-6xl) 0;
  background: var(--color-white);
}

.insights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-3xl);
}

.insight-card {
  background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-white) 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  border: 1px solid var(--color-primary-100);
  transition: var(--transition-base);
}

.insight-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--color-primary-100) 0%, var(--color-white) 100%);
}

.insight-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-warm-amber), var(--color-warm-orange));
  border-radius: var(--radius-lg);
  color: var(--color-white);
  margin-bottom: var(--space-lg);
}

.insight-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-md);
  line-height: var(--line-height-snug);
}

.insight-description {
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-lg);
}

.insight-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: var(--transition-base);
}

.insight-link:hover {
  color: var(--color-primary-dark);
}

/* Value-First CTA */
.value-first-cta {
  padding: var(--space-6xl) 0;
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
  border-top: 1px solid var(--color-border);
}

.cta-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.cta-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}

.cta-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4xl);
}

.cta-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-4xl);
}

.cta-benefit {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.benefit-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.cta-actions {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.cta-note {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-style: italic;
}

/* Newsletter Section */
.newsletter-section {
  padding: var(--space-5xl) 0;
  background: var(--color-primary-900);
  color: var(--color-white);
}

.newsletter-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-md);
}

.newsletter-description {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  margin-bottom: var(--space-3xl);
  line-height: var(--line-height-relaxed);
}

.newsletter-form {
  max-width: 400px;
  margin: 0 auto;
}

.form-group {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.form-input {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  font-size: var(--font-size-base);
  backdrop-filter: blur(8px);
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-warm-orange);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

.form-note {
  font-size: var(--font-size-sm);
  opacity: 0.7;
}

/* FAQ Accordion
   ========================================================================== */
.faq-accordion {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  width: 100%;
  padding: var(--space-xl);
  background: none;
  border: none;
  text-align: left;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition-base);
}

.faq-question:hover {
  background: var(--color-gray-50);
}

.faq-question[aria-expanded="true"] {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.faq-icon {
  flex-shrink: 0;
  margin-left: var(--space-md);
  transition: transform var(--transition-base);
}

.faq-question[aria-expanded="true"] .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  overflow: hidden;
  transition: height 0.3s ease;
}

.faq-answer-content {
  padding: 0 var(--space-xl) var(--space-xl);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
}

/* Final CTA Section
   ========================================================================== */
.cta-final-section {
  padding: var(--space-6xl) 0;
  background: var(--color-gray-900);
  color: var(--color-white);
  text-align: center;
  position: relative;
}

.cta-final-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--color-primary-900) 0%, var(--color-gray-900) 50%, var(--color-primary-800) 100%);
  opacity: 0.95;
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-lg);
  color: var(--color-white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  line-height: var(--line-height-tight);
}

.cta-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2xl);
  line-height: var(--line-height-relaxed);
  color: var(--color-gray-100);
  font-weight: var(--font-weight-medium);
}

.cta-buttons {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* Responsive adjustments for CTA section */
@media (max-width: 768px) {
  .cta-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-md);
  }
  
  .cta-subtitle {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-xl);
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }
}

/* Animation & Layout Helpers
   ========================================================================== */
.enhanced-card-hover {
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

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

.scroll-animate-card {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.staggered-grid > * {
  animation: fadeInUp 0.6s ease forwards;
}

.staggered-grid > *:nth-child(1) { animation-delay: 0.1s; }
.staggered-grid > *:nth-child(2) { animation-delay: 0.2s; }
.staggered-grid > *:nth-child(3) { animation-delay: 0.3s; }
.staggered-grid > *:nth-child(4) { animation-delay: 0.4s; }

.section-entrance {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Footer */
.footer {
  background: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--space-5xl) 0 var(--space-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4xl);
  margin-bottom: var(--space-4xl);
}

.footer-column h4 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.footer-logo {
  height: 32px;
  width: auto;
}

.footer-column p {
  margin-bottom: var(--space-lg);
  line-height: var(--line-height-relaxed);
}

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

.footer-column ul li {
  margin-bottom: var(--space-md);
}

.footer-column ul li a {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: var(--transition-base);
}

.footer-column ul li a:hover {
  color: var(--color-white);
}

.contact-info p {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.contact-icon {
  color: var(--color-primary-light);
  flex-shrink: 0;
}

.contact-info a {
  color: var(--color-gray-300);
  text-decoration: none;
  transition: var(--transition-base);
}

.contact-info a:hover {
  color: var(--color-white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-3xl);
  border-top: 1px solid var(--color-gray-800);
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-legal-link {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: var(--transition-base);
}

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

.social-icons {
  display: flex;
  gap: var(--space-lg);
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-gray-800);
  border-radius: var(--radius-full);
  color: var(--color-gray-400);
  text-decoration: none;
  transition: var(--transition-base);
}

.social-icon:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
  /* Navigation */
  .nav-links {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  /* Reduce section paddings for mobile */
  .hero-modern,
  .stats-section,
  .benefits-section, 
  .services-section,
  .process-section,
  .campaign-types-section,
  .trust-section,
  .expertise-section,
  .case-studies-section,
  .insights-section {
    padding: var(--space-4xl) 0;
  }
  
  .newsletter-section,
  .cta-final-section {
    padding: var(--space-3xl) 0;
  }
  
  /* Reduce grid gaps */
  .stats-grid,
  .benefits-grid,
  .services-grid,
  .process-grid,
  .campaign-types-grid {
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
  }
  
  /* Reduce card paddings */
  .stat-card,
  .benefit-card,
  .service-card,
  .process-step,
  .campaign-type-card {
    padding: var(--space-lg);
  }
  
  /* Section headers */
  .section-header {
    margin-bottom: var(--space-3xl);
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-md);
  }
  
  .section-subtitle {
    font-size: var(--font-size-base);
  }
  
  /* Hero adjustments */
  .hero-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-md);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-xl);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }
  
  /* Breadcrumbs */
  .breadcrumbs {
    padding: var(--space-sm) 0;
    margin-bottom: var(--space-lg);
    font-size: var(--font-size-xs);
  }
  
  /* Buttons */
  .btn {
    padding: var(--space-md) var(--space-xl);
  }
  
  .btn-large {
    padding: var(--space-md) var(--space-2xl);
    font-size: var(--font-size-base);
  }
  
  /* FAQ */
  .faq-question {
    padding: var(--space-lg);
    font-size: var(--font-size-base);
  }
  
  .faq-answer-content {
    padding: 0 var(--space-lg) var(--space-lg);
  }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
  /* Further reduce spacings on very small screens */
  .hero-modern,
  .stats-section,
  .benefits-section, 
  .services-section,
  .process-section,
  .campaign-types-section {
    padding: var(--space-3xl) 0;
  }
  
  .newsletter-section,
  .cta-final-section {
    padding: var(--space-2xl) 0;
  }
  
  /* Smaller typography */
  .hero-title {
    font-size: var(--font-size-2xl);
  }
  
  .section-title {
    font-size: var(--font-size-xl);
  }
  
  .cta-title {
    font-size: var(--font-size-xl);
  }
  
  /* Reduced card paddings */
  .stat-card,
  .benefit-card,
  .service-card,
  .process-step,
  .campaign-type-card {
    padding: var(--space-md);
  }
  
  /* Smaller container padding */
  .container {
    padding: 0 var(--space-md);
  }
  
  /* Grid adjustments */
  .services-grid,
  .expertise-grid,
  .case-studies-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }
  
  /* Form adjustments */
  .form-group {
    flex-direction: column;
  }
  
  /* Footer adjustments */
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }
}

/* Animation & Interaction Enhancements
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  .service-card,
  .expertise-card,
  .case-study-card,
  .insight-card {
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  }
  
  .btn {
    transition: all var(--transition-base);
  }
  
  .nav-link::after {
    transition: width var(--transition-base);
  }
}

/* Focus States for Accessibility */
.btn:focus,
.nav-link:focus,
.form-input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .cta-actions,
  .newsletter-section {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: black;
    background: white;
  }
  
  .section-title,
  .hero-title {
    color: black;
    page-break-after: avoid;
  }
}