/* ============================================
   K2Share, LLC - Main Stylesheet
   Modern, Professional IT/Software Company
   ============================================ */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
  /* Colors - Primary Palette */
  --color-deep-blue: #0a1628;
  --color-navy: #1a365d;
  --color-vibrant-blue: #2563eb;
  --color-cyan: #06b6d4;
  --color-white: #ffffff;
  --color-light-gray: #f3f4f6;
  --color-gray: #6b7280;
  --color-dark-gray: #374151;
  
  /* Colors - Semantic */
  --color-bg-primary: var(--color-deep-blue);
  --color-bg-secondary: var(--color-navy);
  --color-bg-light: var(--color-light-gray);
  --color-text-primary: var(--color-deep-blue);
  --color-text-secondary: var(--color-gray);
  --color-text-light: var(--color-white);
  --color-accent: var(--color-vibrant-blue);
  --color-accent-hover: #1d4ed8;
  --color-accent-cyan: var(--color-cyan);
  
  /* Colors - State */
  --color-success: #10b981;
  --color-success-bg: #d1fae5;
  --color-error: #ef4444;
  --color-error-bg: #fee2e2;
  --color-warning: #f59e0b;
  --color-warning-bg: #fef3c7;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-card: 0 4px 20px rgb(0 0 0 / 0.08);
  --shadow-card-hover: 0 8px 30px rgb(0 0 0 / 0.12);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Z-index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-toast: 600;
  
  /* Layout */
  --header-height: 80px;
  --container-max-width: 1200px;
  --container-padding: var(--spacing-lg);
}

/* ============================================
   Reset & Base Styles
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button {
  cursor: pointer;
  background: none;
  border: none;
}

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

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

ul,
ol {
  list-style: none;
}

/* ============================================
   Accessibility
   ============================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing-md);
  z-index: var(--z-toast);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-vibrant-blue);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--spacing-md);
  outline: 2px solid var(--color-cyan);
  outline-offset: 2px;
}

:focus-visible {
  outline: 2px solid var(--color-vibrant-blue);
  outline-offset: 2px;
}

@media (prefers-contrast: high) {
  :root {
    --color-accent: #1d4ed8;
    --shadow-card: 0 0 0 2px var(--color-deep-blue);
    --shadow-card-hover: 0 0 0 3px var(--color-vibrant-blue);
  }
  
  a,
  button {
    text-decoration: underline;
  }
}

.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;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

h1 {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-md);
}

h4 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-sm);
}

h5 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

h6 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
}

.text-large {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

.text-small {
  font-size: var(--font-size-sm);
}

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

/* ============================================
   Layout & Container
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
  color: var(--color-text-secondary);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--color-vibrant-blue);
  color: var(--color-white);
  border-color: var(--color-vibrant-blue);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
}

.btn-primary:active:not(:disabled) {
  background-color: #1e40af;
  border-color: #1e40af;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-vibrant-blue);
  border-color: var(--color-vibrant-blue);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-vibrant-blue);
  color: var(--color-white);
}

.btn-secondary:active:not(:disabled) {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

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

.btn-outline-white:hover:not(:disabled) {
  background-color: var(--color-white);
  color: var(--color-deep-blue);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* ============================================
   Header
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  height: var(--header-height);
  background-color: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background-color var(--transition-normal);
}

.header.scrolled {
  background-color: var(--color-deep-blue);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
}

.logo:hover {
  color: var(--color-cyan);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-vibrant-blue), var(--color-cyan));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--color-white);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-sm) 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-cyan);
  transition: width var(--transition-fast);
}

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

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

.nav-cta {
  margin-left: var(--spacing-md);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  transition: all var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
@media (max-width: 767px) {
  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-deep-blue);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-xl);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
  }
  
  .nav.open {
    transform: translateX(0);
  }
  
  .nav-list {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }
  
  .nav-link {
    display: block;
    padding: var(--spacing-md);
    font-size: var(--font-size-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .nav-link::after {
    display: none;
  }
  
  .nav-cta {
    margin-left: 0;
    margin-top: var(--spacing-xl);
    width: 100%;
  }
  
  .nav-cta .btn {
    width: 100%;
  }
  
  .hamburger {
    display: flex;
  }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-height) + var(--spacing-2xl)) var(--spacing-lg) var(--spacing-2xl);
  background-color: var(--color-deep-blue);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    rgba(10, 22, 40, 0.95) 0%,
    rgba(26, 54, 93, 0.85) 50%,
    rgba(10, 22, 40, 0.9) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
  font-size: clamp(2.5rem, 5vw, var(--font-size-6xl));
}

.hero h1 span {
  color: var(--color-cyan);
}

.hero-subtitle {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.hero-stat-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-cyan);
}

.hero-stat-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--spacing-xs);
}

@media (max-width: 767px) {
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 300px;
  }
}

/* Hero Page Variant (for inner pages) */
.hero-page {
  min-height: 50vh;
  padding-top: calc(var(--header-height) + var(--spacing-3xl));
}

/* ============================================
   Service Cards
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.service-card {
  position: relative;
  padding: var(--spacing-xl);
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-light-gray);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-vibrant-blue), var(--color-cyan));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  color: var(--color-vibrant-blue);
}

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

.service-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-vibrant-blue);
}

.service-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.service-link:hover svg {
  transform: translateX(4px);
}

/* Service Cards Detailed (for services page) */
.services-grid-detailed {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3xl);
}

.service-card-detailed {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.service-card-detailed:nth-child(even) {
  direction: rtl;
}

.service-card-detailed:nth-child(even) > * {
  direction: ltr;
}

.service-image {
  position: relative;
  min-height: 300px;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card-detailed:hover .service-image img {
  transform: scale(1.05);
}

.service-content {
  padding: var(--spacing-2xl);
}

.service-content .service-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.service-content .service-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
}

.service-features {
  list-style: none;
  padding: 0;
  margin-bottom: var(--spacing-lg);
}

.service-features li {
  position: relative;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  background-color: var(--color-cyan);
  border-radius: 50%;
}

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

.benefit-tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--color-vibrant-blue);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

@media (max-width: 767px) {
  .service-card-detailed,
  .service-card-detailed:nth-child(even) {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  
  .service-image {
    min-height: 200px;
  }
}

/* Case Studies */
.case-studies {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-light-gray);
}

.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.case-study-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.case-study-image {
  position: relative;
  min-height: 200px;
}

.case-study-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-study-content {
  padding: var(--spacing-xl);
}

.case-study-tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: rgba(6, 182, 212, 0.1);
  color: var(--color-cyan);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
}

.case-study-content h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.case-study-content p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
}

.case-study-results {
  display: flex;
  gap: var(--spacing-lg);
}

.result {
  text-align: center;
}

.result-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-vibrant-blue);
}

.result-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

@media (max-width: 767px) {
  .case-study-card {
    grid-template-columns: 1fr;
  }
  
  .case-study-image {
    min-height: 150px;
  }
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.form-label.required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--color-dark-gray);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-vibrant-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-md) center;
  padding-right: var(--spacing-2xl);
}

/* Form Validation States */
.form-input.is-error,
.form-select.is-error,
.form-textarea.is-error {
  border-color: var(--color-error);
}

.form-input.is-error:focus,
.form-select.is-error:focus,
.form-textarea.is-error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-input.is-success,
.form-select.is-success,
.form-textarea.is-success {
  border-color: var(--color-success);
}

.form-input.is-success:focus,
.form-select.is-success:focus,
.form-textarea.is-success:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.form-error {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-error);
}

.form-success {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-success);
}

/* Custom Checkbox */
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  cursor: pointer;
}

.form-checkbox input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.form-checkbox-box {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  background-color: var(--color-white);
  border: 2px solid var(--color-gray);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.form-checkbox:hover .form-checkbox-box {
  border-color: var(--color-vibrant-blue);
}

.form-checkbox input:checked + .form-checkbox-box {
  background-color: var(--color-vibrant-blue);
  border-color: var(--color-vibrant-blue);
}

.form-checkbox-box::after {
  content: '';
  position: absolute;
  display: none;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border: solid var(--color-white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.form-checkbox input:checked + .form-checkbox-box::after {
  display: block;
}

.form-checkbox input:focus-visible + .form-checkbox-box {
  outline: 2px solid var(--color-vibrant-blue);
  outline-offset: 2px;
}

.form-checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.form-checkbox-label a {
  color: var(--color-vibrant-blue);
  text-decoration: underline;
}

/* ============================================
   Cookie Consent Banner
   ============================================ */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-toast);
  padding: var(--spacing-lg);
  background-color: var(--color-white);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  transform: translateY(100%);
  transition: transform var(--transition-slow);
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
}

.cookie-content {
  flex: 1;
  min-width: 280px;
}

.cookie-content h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xs);
}

.cookie-content p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.cookie-content a {
  color: var(--color-vibrant-blue);
  text-decoration: underline;
}

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

@media (max-width: 767px) {
  .cookie-banner .container {
    flex-direction: column;
    text-align: center;
  }
  
  .cookie-buttons {
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   Cookie Settings Modal
   ============================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal-backdrop);
  background-color: rgba(10, 22, 40, 0.7);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.visible {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  z-index: var(--z-modal);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal.visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

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

.modal-header h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xs);
}

.modal-header p {
  margin: 0;
  color: var(--color-text-secondary);
}

.modal-close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-gray);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background-color: var(--color-light-gray);
  color: var(--color-text-primary);
}

.modal-body {
  padding: var(--spacing-xl);
}

.modal-footer {
  padding: var(--spacing-lg) var(--spacing-xl);
  border-top: 1px solid var(--color-light-gray);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
}

/* Cookie Category */
.cookie-category {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-light-gray);
}

.cookie-category:last-child {
  border-bottom: none;
}

.cookie-category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.cookie-category-header h4 {
  font-size: var(--font-size-base);
  margin: 0;
}

.cookie-category p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--color-gray);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  left: 3px;
  bottom: 3px;
  background-color: var(--color-white);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--color-vibrant-blue);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
}

.toggle-switch input:disabled + .toggle-slider {
  opacity: 0.5;
  cursor: not-allowed;
}

.toggle-switch input:focus-visible + .toggle-slider {
  outline: 2px solid var(--color-vibrant-blue);
  outline-offset: 2px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-deep-blue);
  color: var(--color-white);
  padding-top: var(--spacing-3xl);
}

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

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: var(--spacing-lg);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background-color: var(--color-cyan);
  color: var(--color-deep-blue);
}

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

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding: var(--spacing-lg) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

.footer-legal {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-legal a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

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

@media (max-width: 1199px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-brand {
    grid-column: span 2;
    max-width: none;
  }
}

@media (max-width: 767px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
  
  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
  text-align: center;
}

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

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

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.hidden {
  display: none !important;
}

.visible {
  display: block !important;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-normal) ease forwards;
}

.animate-slide-up {
  animation: slideUp var(--transition-slow) ease forwards;
}

.animate-slide-down {
  animation: slideDown var(--transition-slow) ease forwards;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
  }
  
  .header,
  .cookie-banner,
  .modal-backdrop,
  .modal,
  .footer-social,
  .hamburger,
  .btn,
  .nav-cta {
    display: none !important;
  }
  
  .hero {
    min-height: auto;
    padding: 20pt 0;
  }
  
  .hero-overlay {
    display: none;
  }
  
  .hero h1,
  .hero-subtitle {
    color: #000 !important;
  }
  
  .service-card {
    break-inside: avoid;
    page-break-inside: avoid;
    border: 1px solid #ccc;
  }
  
  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 10pt;
  }
  
  a[href^="#"]::after,
  a[href^="javascript:"]::after {
    content: "";
  }
  
  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }
  
  img {
    max-width: 100% !important;
  }
  
  @page {
    margin: 2cm;
  }
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 1199px) {
  :root {
    --container-padding: var(--spacing-xl);
  }
  
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  h2 {
    font-size: var(--font-size-3xl);
  }
}

@media (max-width: 767px) {
  :root {
    --header-height: 64px;
    --container-padding: var(--spacing-md);
  }
  
  html {
    font-size: 15px;
  }
  
  h1 {
    font-size: var(--font-size-3xl);
  }
  
  h2 {
    font-size: var(--font-size-2xl);
  }
  
  h3 {
    font-size: var(--font-size-xl);
  }
  
  .section {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   About Page Styles
   ============================================ */
.about-section {
  padding-top: var(--spacing-4xl);
  padding-bottom: var(--spacing-4xl);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.about-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-text {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

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

.mission-icon {
  color: var(--color-vibrant-blue);
  margin-bottom: var(--spacing-lg);
}

.mission-text {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  line-height: var(--line-height-relaxed);
}

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

.value-card {
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  text-align: center;
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.value-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.1));
  border-radius: var(--radius-lg);
  color: var(--color-vibrant-blue);
}

.value-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.value-card p {
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

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

.why-choose-section .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
}

.why-choose-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.why-choose-card {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.why-choose-card:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
}

.why-choose-number {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-cyan);
  margin-bottom: var(--spacing-sm);
}

.why-choose-card h3 {
  font-size: var(--font-size-xl);
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.why-choose-card p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0;
}

.cta-section {
  background-color: var(--color-light-gray);
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
}

.cta-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

@media (max-width: 991px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .about-image {
    order: -1;
  }
}

@media (max-width: 767px) {
  .values-grid,
  .why-choose-grid {
    grid-template-columns: 1fr;
  }
}