:root {
  /* Protech Brand Colors */
  --app-primary: #0112E7;
  --app-primary-hover: #000ebf;
  --app-primary-light: #176BFF;
  --app-primary-glow: rgba(1, 18, 231, 0.28);
  --app-primary-subtle: #EAF1FF;
  
  --app-blue-deep: #07174A;
  --app-blue-darker: #040d2d;
  --app-blue-accent: #36BFFA;
  --app-blue-accent-glow: rgba(54, 191, 250, 0.35);
  
  /* Neutral / Surface Colors */
  --app-bg-main: #FFFFFF;
  --app-bg-alt: #F6F8FC;
  --app-bg-card: #FFFFFF;
  --app-bg-card-glass: rgba(255, 255, 255, 0.85);
  --app-bg-card-dark: rgba(255, 255, 255, 0.05);
  
  /* Text Colors */
  --app-text-main: #080D1A;
  --app-text-secondary: #5E6678;
  --app-text-muted: #8E98AB;
  --app-text-white: #FFFFFF;
  --app-text-light: #E2E8F0;
  
  /* Borders & Dividers */
  --app-border: #E3E9F3;
  --app-border-focus: #176BFF;
  --app-border-dark: rgba(255, 255, 255, 0.12);
  --app-border-light: rgba(255, 255, 255, 0.2);

  /* Status Colors */
  --app-success: #10B981;
  --app-success-bg: #ECFDF5;
  --app-warning: #F59E0B;
  --app-warning-bg: #FFFBEB;
  --app-danger: #EF4444;
  --app-info: #0284C7;
  
  /* Typography */
  --app-font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --app-font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Shadows */
  --app-shadow-xs: 0 1px 2px rgba(8, 13, 26, 0.04);
  --app-shadow-sm: 0 4px 12px rgba(8, 13, 26, 0.05);
  --app-shadow-md: 0 12px 32px rgba(8, 13, 26, 0.08);
  --app-shadow-lg: 0 20px 48px -10px rgba(1, 18, 231, 0.12);
  --app-shadow-xl: 0 25px 60px -15px rgba(7, 23, 74, 0.25);
  --app-shadow-glow: 0 0 35px rgba(1, 18, 231, 0.3);
  --app-shadow-glow-cyan: 0 0 30px rgba(54, 191, 250, 0.35);

  /* Spacing */
  --app-container-max: 1240px;
  --app-container-wide: 1360px;
  --app-header-h: 80px;
  
  /* Border Radius */
  --app-radius-xs: 6px;
  --app-radius-sm: 10px;
  --app-radius-md: 16px;
  --app-radius-lg: 24px;
  --app-radius-xl: 32px;
  --app-radius-full: 9999px;
  
  /* Transitions */
  --app-transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --app-transition-base: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  --app-transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

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

/* Global Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--app-text-main);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

h1 {
  font-size: clamp(2.5rem, 5.2vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h3 {
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 700;
}

h4 {
  font-size: 1.2rem;
  font-weight: 600;
}

p {
  color: var(--app-text-secondary);
  font-size: 1.05rem;
  line-height: 1.65;
}

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

img, svg {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* Layout Utilities */
.app-container {
  width: 100%;
  max-width: var(--app-container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.app-container-wide {
  width: 100%;
  max-width: var(--app-container-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.app-section {
  padding: 6.5rem 0;
  position: relative;
}

.app-section-sm {
  padding: 4rem 0;
}

.app-section-lg {
  padding: 8.5rem 0;
}

.app-section-alt {
  background-color: var(--app-bg-alt);
}

.app-section-dark,
.app-custom-modular-section {
  background-color: var(--app-blue-deep);
  color: var(--app-text-white);
}

.app-section-dark h1,
.app-section-dark h2,
.app-section-dark h3,
.app-section-dark h4,
.app-custom-modular-section h1,
.app-custom-modular-section h2,
.app-custom-modular-section h3,
.app-custom-modular-section h4 {
  color: #FFFFFF !important;
}

.app-section-dark p,
.app-custom-modular-section p {
  color: #CBD5E1 !important;
}

/* Section Headers */
.app-section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 4rem auto;
}

.app-section-header.app-text-left {
  text-align: left;
  margin-left: 0;
}

.app-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--app-primary);
  background-color: var(--app-primary-subtle);
  padding: 0.4rem 1rem;
  border-radius: var(--app-radius-full);
  margin-bottom: 1.25rem;
  border: 1px solid rgba(1, 18, 231, 0.12);
}

.app-section-dark .app-eyebrow {
  color: var(--app-blue-accent);
  background-color: rgba(54, 191, 250, 0.12);
  border-color: rgba(54, 191, 250, 0.25);
}

.app-section-title {
  margin-bottom: 1.25rem;
}

.app-section-subtitle {
  font-size: 1.15rem;
  color: var(--app-text-secondary);
}

.app-section-dark .app-section-subtitle {
  color: #B2C3E6;
}

.app-highlight-blue {
  color: var(--app-primary);
  position: relative;
}

.app-section-dark .app-highlight-blue {
  color: var(--app-blue-accent);
}

.app-gradient-text {
  background: linear-gradient(135deg, var(--app-primary) 0%, var(--app-primary-light) 60%, var(--app-blue-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.app-section-dark .app-gradient-text {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--app-blue-accent) 60%, #60A5FA 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Surface Background Styles - Clean Enterprise SaaS */
.app-hero-glow-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  height: 80%;
  background: radial-gradient(circle, rgba(1, 18, 231, 0.05) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
}

/* Buttons */
.app-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--app-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--app-transition-base);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}

.app-btn-primary {
  background-color: var(--app-primary);
  color: var(--app-text-white);
  box-shadow: 0 4px 18px rgba(1, 18, 231, 0.32);
}

.app-btn-primary:hover {
  background-color: var(--app-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(1, 18, 231, 0.45);
  color: var(--app-text-white);
}

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

.app-btn-secondary:hover {
  background-color: var(--app-bg-alt);
  border-color: #cbd5e1;
  transform: translateY(-2px);
  color: var(--app-primary);
}

.app-btn-white {
  background-color: #FFFFFF;
  color: var(--app-primary);
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.app-btn-white:hover {
  background-color: #F8FAFC;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
  color: var(--app-blue-deep);
}

.app-btn-outline-white {
  background-color: transparent;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.35);
}

.app-btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #FFFFFF;
  transform: translateY(-2px);
  color: #FFFFFF;
}

.app-btn-outline-primary {
  background-color: transparent;
  color: var(--app-primary);
  border-color: rgba(1, 18, 231, 0.3);
}

.app-btn-outline-primary:hover {
  background-color: var(--app-primary-subtle);
  border-color: var(--app-primary);
  transform: translateY(-2px);
}

.app-btn-link {
  background: transparent;
  padding: 0;
  color: var(--app-primary);
  font-weight: 600;
}

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

.app-btn-lg {
  padding: 1rem 2.2rem;
  font-size: 1.08rem;
  border-radius: var(--app-radius-sm);
}

.app-btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.88rem;
}

.app-btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--app-radius-sm);
}

/* Badges & Tags */
.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--app-radius-full);
}

.app-badge-primary {
  background-color: var(--app-primary-subtle);
  color: var(--app-primary);
  border: 1px solid rgba(1, 18, 231, 0.15);
}

.app-badge-success {
  background-color: var(--app-success-bg);
  color: var(--app-success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.app-badge-cyan {
  background-color: rgba(54, 191, 250, 0.15);
  color: var(--app-blue-accent);
  border: 1px solid rgba(54, 191, 250, 0.3);
}

.app-badge-pill-complete {
  background: linear-gradient(135deg, #10B981, #059669);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: var(--app-radius-full);
  box-shadow: 0 2px 10px rgba(16, 185, 129, 0.3);
}

/* Card Base */
.app-card {
  background-color: var(--app-bg-card);
  border: 1px solid var(--app-border);
  border-radius: var(--app-radius-md);
  padding: 2rem;
  transition: all var(--app-transition-base);
  box-shadow: var(--app-shadow-xs);
  position: relative;
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--app-shadow-md);
  border-color: #cbd5e1;
}

.app-card-dark {
  background-color: rgba(255, 255, 255, 0.04);
  border-color: var(--app-border-dark);
  color: var(--app-text-white);
  backdrop-filter: blur(12px);
}

.app-card-dark:hover {
  background-color: rgba(255, 255, 255, 0.07);
  border-color: rgba(54, 191, 250, 0.35);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}