/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', sans-serif;
  scroll-behavior: smooth;
  line-height: 1.6;
}

/* Custom Properties */
:root {
  --paola-red: #ff0015;
  --paola-red-light: #ff3d2f;
  --paola-red-dark: #cc0011;
  --transition: all 0.3s ease;
}

/* Header Styles */
#header.scrolled {
  background-color: rgba(255, 255, 255, 0.9) !important;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

#header.scrolled h1 {
  color: #111827 !important;
}

#header.scrolled .nav-link {
  color: #111827 !important;
}

#header.scrolled .theme-toggle {
  background-color: #f3f4f6;
  border-color: #d1d5db;
  color: #111827;
}

#header.scrolled #mobileMenuToggle {
  color: #111827 !important;
}

/* Dark mode header adjustments */
.dark #header.scrolled {
  background-color: rgba(17, 24, 39, 0.9) !important;
}

.dark #header.scrolled h1 {
  color: #ffffff !important;
}

.dark #header.scrolled .nav-link {
  color: #ffffff !important;
}

.dark #header.scrolled .theme-toggle {
  background-color: #374151;
  border-color: #4b5563;
  color: #ffffff;
}

.dark #header.scrolled #mobileMenuToggle {
  color: #ffffff !important;
}

/* Navigation Links */
.nav-link {
  color: var(--paola-red);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  background: none;
}

.nav-link:hover {
  color: var(--paola-red-light);
}

.mobile-nav-link {
  color: #111827;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  background: none;
}

.mobile-nav-link:hover {
  color: var(--paola-red);
}

.dark .mobile-nav-link {
  color: #ffffff;
}

.dark .mobile-nav-link:hover {
  color: var(--paola-red);
}

/* Theme Toggle */
.theme-toggle {
  background-color: transparent;
  border: 1px solid var(--paola-red);
  color: var(--paola-red);
  cursor: pointer;
}

.theme-toggle:hover {
  background-color: var(--paola-red);
  color: white;
}

/* Skill Tags */
.skill-tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: linear-gradient(to right, var(--paola-red), var(--paola-red-light));
  color: white;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: transform 0.3s ease;
  cursor: default;
}

.skill-tag:hover {
  transform: scale(1.05);
}

/* Project Cards */
.project-card {
  background: white;
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  overflow: hidden;
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-0.5rem);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.dark .project-card {
  background: #374151;
}

.project-card img {
  width: 100%;
  height: 12rem;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover img {
  transform: scale(1.1);
}

.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.5), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-button {
  background: linear-gradient(to right, var(--paola-red), var(--paola-red-light));
  color: white;
  border: none;
  padding: 0.5rem 0;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
}

.project-button:hover {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transform: scale(1.05);
}

/* Social Cards */
.social-card {
  background: white;
  min-height: 12.5rem;
  padding: 2.5rem 1.5rem;
  border-radius: 1rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
}

.social-card:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  transform: translateY(-0.25rem);
}

.dark .social-card {
  background: #374151;
}

.social-card.linkedin {
  color: #2563eb;
}

.social-card.linkedin:hover {
  color: #1d4ed8;
  background-color: #dbeafe;
}

.dark .social-card.linkedin:hover {
  background-color: rgba(37, 99, 235, 0.2);
}

.social-card.github {
  color: #374151;
}

.social-card.github:hover {
  color: #4b5563;
  background-color: #f9fafb;
}

.dark .social-card.github {
  color: white;
}

.dark .social-card.github:hover {
  color: #d1d5db;
  background-color: #4b5563;
}

.social-card.instagram {
  color: #ec4899;
}

.social-card.instagram:hover {
  color: #be185d;
  background-color: #fce7f3;
}

.dark .social-card.instagram:hover {
  background-color: rgba(236, 72, 153, 0.2);
}

/* Back to Top Button */
#backToTop.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Custom Animations */
@keyframes fadeSlideUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes waveMove {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-160px);
  }
}

/* Animation Classes */
.animate-fade-slide-up {
  animation: fadeSlideUp 0.8s ease forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

.animate-wave-move {
  animation: waveMove 10s linear infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
  
  .skill-tag {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
  }
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(to right, var(--paola-red), var(--paola-red-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Smooth Transitions */
.transition-smooth {
  transition: var(--transition);
}

/* Focus States for Accessibility */
button:focus,
a:focus {
  outline: 2px solid var(--paola-red);
  outline-offset: 2px;
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* Utility Classes */
.text-paola-red {
  color: var(--paola-red);
}

.bg-paola-red {
  background-color: var(--paola-red);
}

.border-paola-red {
  border-color: var(--paola-red);
}