/* ADEPTAUGMENTIT - Enterprise IT Consulting
   Apple-inspired minimal design with dark/light mode support
   ============================================== */

/* CSS Variables & Theming */
:root {
  /* Light Mode (Default) */
  --color-primary-dark: #0A0A0A;
  --color-primary-light: #FFFFFF;
  --color-accent-gray: #6E6E73;
  --color-soft-bg: #F5F5F7;
  --color-border: #E5E5E7;
  --color-accent-blue: #0A84FF;
  
  /* Theme Colors */
  --bg-primary: var(--color-primary-light);
  --bg-secondary: var(--color-soft-bg);
  --text-primary: var(--color-primary-dark);
  --text-secondary: var(--color-accent-gray);
  --border-color: var(--color-border);
  
  /* Typography */
  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing System */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;
  
  /* Layout */
  --max-width: 1200px;
  --nav-height: 64px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg-primary: #0A0A0A;
  --bg-secondary: #1C1C1E;
  --text-primary: #F5F5F7;
  --text-secondary: #A1A1A6;
  --border-color: #2C2C2E;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
  color: var(--text-secondary);
  max-width: 65ch;
}

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

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: background-color var(--transition-base);
}

[data-theme="dark"] .nav {
  background: rgba(10, 10, 10, 0.8);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-logo img {
  height: 100px;
  width: auto;
}

.nav-logo span {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

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

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  color: var(--text-primary);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

/* Mobile Navigation */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  color: var(--text-primary);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  margin: 5px 0;
  transition: var(--transition-fast);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--space-lg) var(--space-md);
    gap: var(--space-md);
    transform: translateX(100%);
    transition: transform var(--transition-base);
  }
  
  .nav-links.active {
    transform: translateX(0);
  }
  
  .nav-links a {
    font-size: 1.25rem;
  }
}

/* Main Content */
main {
  padding-top: var(--nav-height);
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Sections */
.section {
  padding: var(--space-xl) 0;
}

.section-lg {
  padding: var(--space-2xl) 0;
}

/* Hero Section */
.hero {
  min-height: calc(100vh - var(--nav-height));
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
}

.hero h1 {
  margin-bottom: var(--space-md);
  animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.2s both;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: var(--color-accent-blue);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.card {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: var(--space-lg);
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

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

.card h3 {
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.card p {
  font-size: 0.9375rem;
}

/* Process Steps */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  counter-reset: step;
}

.process-step {
  position: relative;
  padding-left: var(--space-lg);
}

.process-step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-accent-blue);
  opacity: 0.5;
}

.process-step h3 {
  margin-bottom: var(--space-xs);
  color: var(--text-primary);
}

.process-step p {
  font-size: 0.9375rem;
}

/* Page Header */
.page-header {
  text-align: center;
  padding: var(--space-2xl) var(--space-md) var(--space-xl);
}

.page-header h1 {
  margin-bottom: var(--space-md);
}

.page-header p {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.125rem;
}

/* Services List */
.service-block {
  margin-bottom: var(--space-xl);
}

.service-block h2 {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-color);
}

.service-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-sm) var(--space-lg);
}

.service-list li {
  color: var(--text-secondary);
  padding-left: 1.5rem;
  position: relative;
}

.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--color-accent-blue);
  border-radius: 50%;
}

/* About Content */
.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .about-content {
    grid-template-columns: 1fr 1fr;
  }
}

.about-text p {
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
}

.approach-list {
  list-style: none;
}

.approach-list li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.approach-list li:hover {
  color: var(--text-primary);
}

/* Contact Form */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  max-width: 800px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .contact-wrapper {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info h3 {
  margin-bottom: var(--space-md);
}

.contact-info p {
  margin-bottom: var(--space-sm);
}

.contact-email {
  color: var(--color-accent-blue);
  font-weight: 500;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  padding: 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 3px rgba(10, 132, 255, 0.1);
}

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

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-xl) 0 var(--space-lg);
  margin-top: var(--space-2xl);
}

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

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

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.footer-logo img {
  height: 100px;
  width: auto;
}

.footer-logo span {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-brand p {
  font-size: 0.875rem;
}

.footer-links h4 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

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

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

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

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
}

.footer-social a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.footer-social svg {
  width: 20px;
  height: 20px;
}

/* Closing CTA Section */
.cta-section {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  background: var(--bg-secondary);
  border-radius: 24px;
  margin: var(--space-xl) 0;
}

.cta-section h2 {
  margin-bottom: var(--space-md);
}

/* Precision Statement */
.precision-section {
  background: var(--bg-secondary);
  border-radius: 24px;
  padding: var(--space-xl);
  text-align: center;
}

.precision-section p {
  max-width: 600px;
  margin: 0 auto var(--space-sm);
  font-size: 1.125rem;
}

.precision-section p:last-of-type {
  color: var(--text-primary);
  font-weight: 500;
}

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

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Credibility Section */
.credibility-section {
  text-align: center;
}

.credibility-section > p:first-of-type {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto var(--space-lg);
}

.credibility-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm) var(--space-lg);
  margin-bottom: var(--space-md);
}

.credibility-list span {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  padding: var(--space-xs) var(--space-sm);
  background: var(--bg-secondary);
  border-radius: 100px;
}

.credibility-tagline {
  font-weight: 500;
  color: var(--text-primary);
  font-size: 1rem;
}

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

.section-heading h2 {
  margin-bottom: var(--space-sm);
}

/* iOS Page Specific */
.ios-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.ios-feature {
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: 12px;
  transition: transform var(--transition-fast);
}

.ios-feature:hover {
  transform: translateY(-2px);
}

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

.philosophy-item {
  padding: var(--space-md);
}

.philosophy-item p {
  margin: 0 auto;
}

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

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

/* Print Styles */
@media print {
  .nav, .theme-toggle, .nav-toggle {
    display: none;
  }
  
  main {
    padding-top: 0;
  }
  
  .hero {
    min-height: auto;
    padding: var(--space-lg) 0;
  }
}