/*!
 * Modern CSS for Guido Altmann's Portfolio Website
 * Based on Bootstrap 5 with custom enhancements
 */

:root {
  /* Color Palette */
  --primary-color: #69b38f;
  --primary-dark: #5a9a7a;
  --secondary-color: #6c757d;
  --dark-color: #212529;
  --light-color: #f8f9fa;
  --page-bg: #ffffff;
  --surface-bg: #ffffff;
  --services-bg: #f5f7f6;
  --text-color: #333;
  --text-light: #666;
  --white: #ffffff;
  
  /* Spacing */
  --section-padding: 5rem 0;
  --header-padding: 8rem 0 4rem;
  
  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 1.1rem;
  --line-height-base: 1.6;
  
  /* Transitions */
  --transition-base: all 0.3s ease;
  --transition-fast: all 0.15s ease;
}

/* Dark Mode Support */
/* @media (prefers-color-scheme: dark) {
  :root {
    --text-color: #e9ecef;
    --text-light: #adb5bd;
    --light-color: #343a40;
    --page-bg: #121416;
    --surface-bg: #1b1f23;
    --services-bg: #2b3035;
  }
} */

/* Base Styles */
body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--text-color);
  background-color: var(--page-bg);
  scroll-behavior: smooth;
}

/* Header Styles */
header {
  padding: var(--header-padding);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.1;
  pointer-events: none;
}

header .container {
  position: relative;
  z-index: 2;
}

header img {
  width: 90%;
  max-width: none;
  height: auto;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
  transition: var(--transition-base);
}

header img:hover {
  transform: scale(1.05);
}

/* Section Styles */
section {
  padding: var(--section-padding);
}

section h2 {
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 2rem;
  position: relative;
}

section h2::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 3rem;
  height: 3px;
  background: var(--primary-color);
  border-radius: 2px;
}

/* About Section */
#about {
  background-color: var(--surface-bg);
}

#about .lead {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 2rem;
}

#about ul {
  list-style: none;
  padding: 0;
}

#about ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--primary-color);
  position: relative;
  padding-left: 1.5rem;
}

#about ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

#about ul li:last-child {
  border-bottom: none;
}

/* Services Section */
#services {
  background-color: var(--services-bg);
}

#services h5 {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

#services ul {
  list-style: none;
  padding: 0;
}

#services ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--primary-color);
  position: relative;
  padding-left: 1.5rem;
}

#services ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

#services ul li:last-child {
  border-bottom: none;
}

/* Contact Section */
#contact {
  background-color: var(--surface-bg);
}

#contact img {
  transition: var(--transition-base);
  border: 4px solid var(--primary-color);
}

#contact img:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(105, 179, 143, 0.3);
}

/* Navigation Styles */
.navbar {
  backdrop-filter: blur(10px);
  background-color: rgba(33, 37, 41, 0.95) !important;
  transition: var(--transition-base);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--white) !important;
  transition: var(--transition-fast);
}

.navbar-brand:hover {
  color: var(--primary-color) !important;
  transform: translateY(-1px);
}

.nav-link {
  font-weight: 500;
  color: var(--white) !important;
  transition: var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-color) !important;
}

.nav-link.active {
  color: var(--primary-color) !important;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 1rem;
  height: 2px;
  background: var(--primary-color);
  border-radius: 1px;
}

/* Social Icons - Force visibility */
.navbar-nav-svg {
  transition: var(--transition-fast);
  fill: #ffffff !important;
  color: #ffffff !important;
  width: 1.5rem !important;
  height: 1.5rem !important;
}

.navbar-nav-svg:hover {
  transform: translateY(-2px);
  filter: drop-shadow(0 2px 4px rgba(105, 179, 143, 0.3));
  fill: #69b38f !important;
  color: #69b38f !important;
}

/* Social Media Links in Navbar - Force white color */
.navbar-nav .nav-link {
  color: #ffffff !important;
}

.navbar-nav .nav-link:hover {
  color: #69b38f !important;
}

.navbar-nav .nav-link svg {
  fill: currentColor !important;
  color: inherit !important;
}

/* Additional specificity for social links */
.navbar .navbar-nav .nav-link svg {
  fill: #ffffff !important;
}

.navbar .navbar-nav .nav-link:hover svg {
  fill: #69b38f !important;
}

/* Footer */
footer {
  background-color: var(--dark-color) !important;
}

footer a {
  color: var(--primary-color) !important;
  text-decoration: none;
  transition: var(--transition-fast);
}

footer a:hover {
  color: var(--white) !important;
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --section-padding: 3rem 0;
    --header-padding: 6rem 0 3rem;
  }
  
  header img {
    width: 90%;
    max-width: none;
  }
  
  section h2 {
    font-size: 2rem;
  }
  
  .navbar-brand {
    font-size: 1.25rem;
  }
}

@media (max-width: 576px) {
  :root {
    --section-padding: 2rem 0;
    --header-padding: 5rem 0 2rem;
  }
  
  header img {
    width: 90%;
    max-width: none;
  }
  
  section h2 {
    font-size: 1.75rem;
  }
}

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

/* Focus Styles */
a:focus,
button:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .navbar,
  footer {
    display: none !important;
  }
  
  body {
    color: #000 !important;
    background: #fff !important;
  }
  
  section {
    padding: 1rem 0 !important;
  }
}