/*
 * Premium Odoo ERP Agency Website
 * Design System & Core Styles
 */

/* ============================================
   CSS VARIABLES - DESIGN SYSTEM
   ============================================ */
:root {
  /* Premium Color Palette */
  --color-navy: #0A2540;
  --color-navy-light: #1a3a5c;
  --color-grey: #6B7280;
  --color-grey-light: #E5E7EB;
  --color-white: #FFFFFF;
  --color-accent-blue: #0066FF;
  --color-accent-green: #10B981;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Source Serif Pro', Georgia, serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-navy);
  background-color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 3.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.875rem;
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-grey);
  font-size: 1.125rem;
}

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

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

/* ============================================
   LAYOUT
   ============================================ */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

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

.section-hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: all var(--transition-base);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-navy);
  font-family: var(--font-serif);
}

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

.nav-link {
  color: var(--color-navy);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-accent-blue);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.nav-link:hover::after {
  width: 80%;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--color-accent-blue);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: #0052cc;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn-large {
  padding: 1.25rem 3rem;
  font-size: 1.125rem;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: var(--color-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.hero-text h1 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease;
}

.hero-text p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-visual {
  position: relative;
  height: 500px;
}

#odoo-3d-canvas {
  width: 100%;
  height: 100%;
}

/* ============================================
   TRUST INDICATORS
   ============================================ */
.trust-bar {
  background: var(--color-white);
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-grey-light);
}

.trust-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  text-align: center;
}

.trust-item h3 {
  color: var(--color-accent-blue);
  font-family: var(--font-sans);
  font-size: 2.5rem;
  margin-bottom: 0.25rem;
}

.trust-item p {
  color: var(--color-grey);
  font-size: 0.875rem;
  margin: 0;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-grey-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--color-accent-blue);
  transition: height var(--transition-base);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
  height: 100%;
}

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-accent-blue), var(--color-accent-green));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.service-card h3 {
  font-family: var(--font-sans);
  color: var(--color-navy);
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  font-size: 1rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent-blue);
  font-weight: 600;
  margin-top: var(--spacing-sm);
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--color-grey-light);
  z-index: -1;
}

.process-step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  background: var(--color-white);
  border: 3px solid var(--color-accent-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent-blue);
  margin: 0 auto var(--spacing-sm);
  position: relative;
  z-index: 1;
}

.process-step h4 {
  font-family: var(--font-sans);
  margin-bottom: var(--spacing-xs);
}

/* ============================================
   CASE STUDIES
   ============================================ */
.case-study-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.case-study-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.case-study-image {
  width: 100%;
  height: 250px;
  background: linear-gradient(135deg, var(--color-navy), var(--color-accent-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 3rem;
}

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

.case-study-tag {
  display: inline-block;
  background: var(--color-grey-light);
  color: var(--color-grey);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.case-study-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-grey-light);
}

.metric {
  text-align: center;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent-green);
  display: block;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--color-grey);
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.contact-info h2 {
  margin-bottom: var(--spacing-md);
}

.contact-form {
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--spacing-sm);
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--color-grey-light);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

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

.form-step {
  display: none;
}

.form-step.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.form-progress {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--spacing-md);
}

.progress-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-grey-light);
  transition: all var(--transition-base);
}

.progress-dot.active {
  background: var(--color-accent-blue);
  transform: scale(1.2);
}

.form-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: space-between;
  margin-top: var(--spacing-md);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-navy);
  color: var(--color-white);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-brand h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
}

.footer-links h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-sans);
}

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

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  display: block;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .trust-content {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .process-steps {
    grid-template-columns: 1fr;
  }
  
  .process-steps::before {
    display: none;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .section {
    padding: var(--spacing-md) 0;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }
  
  .btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .trust-content {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
  text-align: center;
}

.text-navy {
  color: var(--color-navy);
}

.text-grey {
  color: var(--color-grey);
}

.bg-grey-light {
  background-color: var(--color-grey-light);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.contact-info-link {
  color: var(--color-accent-blue);
}

.contact-info-text {
  color: var(--color-grey);
}