/* CSS Custom Properties */
:root {
  --color-primary: #1a5276;     /* Professional dark blue din cerinte */
  --color-secondary: #2ecc71;   /* Trust green din cerinte */
  --color-secondary-hover: #27ae60;
  --color-text: #2c3e50;
  --color-text-light: #5a6c7d;
  --color-bg: #faf9f6;          /* Warm off-white */
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  
  --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: 'Georgia', 'Times New Roman', serif; /* Un font serif pentru a adăuga căldură și profesionalism clasic */
  
  --max-width: 1200px;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  
  --radius: 8px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px;
  z-index: 100;
}
.skip-link:focus {
  top: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

/* Header & Nav */
header {
  background-color: var(--color-surface);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 50;
}

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

.logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: bold;
  color: var(--color-primary);
  text-decoration: none;
}

.nav-links {
  display: none; /* Mobile first */
}

.nav-links.active {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--color-surface);
  box-shadow: var(--shadow);
  padding: var(--spacing-md);
}

.nav-links a {
  padding: var(--spacing-sm) 0;
  font-weight: 500;
  color: var(--color-text);
}

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

.mobile-menu-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-primary);
  cursor: pointer;
  display: block;
}

/* Hero Section */
.hero {
  background-color: var(--color-primary);
  color: white;
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero h1 {
  color: white;
  font-size: 2.5rem;
  margin-bottom: var(--spacing-lg);
}

.hero p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-block;
  background-color: var(--color-secondary);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: bold;
  text-align: center;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn:hover {
  background-color: var(--color-secondary-hover);
  color: white;
  transform: translateY(-2px);
}

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

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

/* Cards (Services) */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
}

.card h3 {
  margin-bottom: var(--spacing-sm);
}

/* Contact Form */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.2);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.form-status {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius);
  display: none;
}

.form-status.success {
  display: block;
  background-color: #d4edda;
  color: #155724;
}

.form-status.error {
  display: block;
  background-color: #f8d7da;
  color: #721c24;
}

/* Footer */
footer {
  background-color: var(--color-primary);
  color: white;
  padding: var(--spacing-xl) 0 var(--spacing-md);
  margin-top: auto;
}

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

.footer-section h3 {
  color: white;
  font-size: 1.25rem;
}

.footer-section p, .footer-section a, .footer-section li {
  color: #e2e8f0;
}

.footer-section a:hover {
  color: var(--color-secondary);
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.875rem;
  color: #cbd5e1;
}

/* Content Pages */
.page-header {
  background-color: var(--color-surface);
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-xl);
}

.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

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

.content-wrapper ul, .content-wrapper ol {
  margin-bottom: var(--spacing-md);
  margin-left: var(--spacing-lg);
}

/* Media Queries */
@media (min-width: 768px) {
  .nav-links {
    display: flex;
    gap: var(--spacing-lg);
  }
  
  .mobile-menu-btn {
    display: none;
  }
  
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}