/* 
 * Portfolio Website Styles
 * Core PHP, MySQL, CSS, HTML
 * 
 * Main stylesheet for the portfolio website
 */

/* ======= Base Styles ======= */
:root {
  /* Colors */
  --primary-color: #6366F1;         /* Indigo */
  --primary-light: #818CF8;
  --primary-dark: #4F46E5;
  
  --secondary-color: #EC4899;       /* Pink */
  --secondary-light: #F472B6;
  --secondary-dark: #DB2777;
  
  --accent-color: #F59E0B;          /* Amber */
  --accent-light: #FBBF24;
  --accent-dark: #D97706;
  
  --success-color: #10B981;         /* Emerald */
  --warning-color: #F59E0B;         /* Amber */
  --error-color: #EF4444;           /* Red */
  
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  
  /* Typography */
  --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.5;
  --line-height-heading: 1.2;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  
  /* Borders */
  --border-radius-sm: 0.25rem;
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  --border-radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Containers */
  --container-max-width: 1280px;
  --container-padding: var(--spacing-4);
}

/* Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
}

/* Reset Margins */
html, body, h1, h2, h3, h4, h5, h6, p, ol, ul, figure {
  margin: 0;
  padding: 0;
}

/* Base HTML */
html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  line-height: var(--line-height-base);
  color: var(--gray-800);
  background-color: var(--gray-50);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-heading);
  margin-bottom: var(--spacing-4);
  color: var(--gray-900);
}

h1 {
  font-size: 2.25rem; /* 36px */
  font-weight: 700;
}

h2 {
  font-size: 1.875rem; /* 30px */
}

h3 {
  font-size: 1.5rem; /* 24px */
}

h4 {
  font-size: 1.25rem; /* 20px */
}

h5 {
  font-size: 1.125rem; /* 18px */
}

h6 {
  font-size: 1rem; /* 16px */
}

p {
  margin-bottom: var(--spacing-4);
}

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

a:hover {
  color: var(--primary-dark);
}

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

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Section Styling */
section {
  padding: var(--spacing-16) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-12);
}

.section-header h2 {
  font-size: 2.25rem;
  margin-bottom: var(--spacing-2);
}

.section-header p {
  font-size: 1.125rem;
  color: var(--gray-600);
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  padding: var(--spacing-3) var(--spacing-6);
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  border: none;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  color: white;
}

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

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

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

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

.btn-sm {
  padding: var(--spacing-1) var(--spacing-4);
  font-size: 0.875rem;
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: 1.125rem;
}

/* ======= Header & Navigation ======= */
.site-header {
  background-color: rgba(255, 255, 255, 0.95);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-4) 0;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.site-header.scrolled {
  background-color: white;
  box-shadow: var(--shadow);
  padding: var(--spacing-2) 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--gray-900);
}

.logo-icon {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  margin-right: var(--spacing-2);
  background-color: var(--primary-color);
  border-radius: var(--border-radius);
  position: relative;
}

.logo-icon::before,
.logo-icon::after {
  content: "";
  position: absolute;
  background-color: white;
}

.logo-icon::before {
  width: 60%;
  height: 2px;
  top: 40%;
  left: 20%;
}

.logo-icon::after {
  width: 2px;
  height: 60%;
  top: 20%;
  left: 60%;
}

.logo-text {
  color: var(--gray-900);
}

.main-nav {
  display: flex;
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  margin-left: var(--spacing-6);
}

.nav-menu a {
  color: var(--gray-700);
  font-weight: 500;
  padding: var(--spacing-2) 0;
  position: relative;
}

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

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width var(--transition);
}

.nav-menu a.active::after,
.nav-menu a:hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-2);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--gray-800);
  margin: 5px 0;
  transition: all var(--transition-fast);
}

/* ======= Hero Section ======= */
.hero {
  padding: 10rem 0 6rem;
  background-color: var(--gray-50);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-6);
  color: var(--gray-900);
}

.hero p {
  font-size: 1.25rem;
  color: var(--gray-600);
  margin-bottom: var(--spacing-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-4);
  justify-content: center;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

.shape {
  position: absolute;
  border-radius: var(--border-radius-xl);
  opacity: 0.15;
}

.shape-1 {
  width: 300px;
  height: 300px;
  background-color: var(--primary-color);
  top: -100px;
  right: -150px;
  transform: rotate(45deg);
}

.shape-2 {
  width: 200px;
  height: 200px;
  background-color: var(--secondary-color);
  bottom: -50px;
  left: -100px;
  transform: rotate(30deg);
}

.shape-3 {
  width: 150px;
  height: 150px;
  background-color: var(--accent-color);
  top: 50%;
  right: 10%;
  transform: rotate(15deg);
}

/* ======= Services Section ======= */
.services {
  background-color: white;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-8);
}

.service-card {
  background-color: var(--gray-50);
  border-radius: var(--border-radius);
  padding: var(--spacing-8);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-6);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.service-icon::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: var(--primary-color);
  opacity: 0.1;
}

.service-icon::after {
  content: "";
  position: absolute;
  background-color: var(--primary-color);
}

.website-icon::after {
  width: 40px;
  height: 30px;
  border-radius: var(--border-radius-sm);
  border: 2px solid var(--primary-color);
}

.webapp-icon::after {
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-sm);
  border: 2px solid var(--primary-color);
  box-shadow: 8px 8px 0 -2px white, 8px 8px 0 0 var(--primary-color);
}

.logo-icon::after {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
  box-shadow: 0 0 0 8px rgba(99, 102, 241, 0.2);
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-4);
  color: var(--gray-900);
}

.service-card p {
  color: var(--gray-600);
  margin-bottom: 0;
}

/* ======= Portfolio Section ======= */
.featured-work {
  background-color: var(--gray-50);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-6);
}

.portfolio-item {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background-color: white;
  transition: transform var(--transition), box-shadow var(--transition);
}

.portfolio-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.portfolio-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  /*object-fit: cover;*/
  transition: transform var(--transition);
}

.portfolio-item:hover .portfolio-image img {
  transform: scale(1.05);
}

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  padding: var(--spacing-4);
  color: white;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
  transform: translateY(0);
}

.portfolio-category {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-1);
  opacity: 0.8;
}

.portfolio-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.view-all-container {
  text-align: center;
  margin-top: var(--spacing-12);
}

/* Portfolio Filters */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
  justify-content: center;
  margin-bottom: var(--spacing-8);
}

.filter-btn {
  padding: var(--spacing-2) var(--spacing-4);
  background-color: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-full);
  color: var(--gray-700);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* Portfolio Detail */
.portfolio-detail {
  padding-top: 8rem;
}

.breadcrumbs {
  margin-bottom: var(--spacing-4);
  color: var(--gray-500);
  font-size: 0.875rem;
}

.breadcrumbs a {
  color: var(--gray-700);
}

.breadcrumbs a:hover {
  color: var(--primary-color);
}

.portfolio-meta {
  display: flex;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
  color: var(--gray-600);
}

.portfolio-images {
  margin-bottom: var(--spacing-8);
}

.main-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-bottom: var(--spacing-4);
}

.main-image img {
  width: 100%;
  height: auto;
}

.additional-images {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-4);
}

.additional-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.additional-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-12);
}

.portfolio-description h2,
.portfolio-details h2 {
  margin-bottom: var(--spacing-4);
}

.details-list {
  list-style: none;
  padding: 0;
}

.details-list li {
  padding: var(--spacing-3) 0;
  border-bottom: 1px solid var(--gray-200);
}

.details-list li:last-child {
  border-bottom: none;
}

.details-list strong {
  color: var(--gray-800);
  margin-right: var(--spacing-2);
}

.portfolio-cta {
  background-color: var(--gray-100);
  padding: var(--spacing-8);
  text-align: center;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-12);
}

.portfolio-cta h2 {
  margin-bottom: var(--spacing-2);
}

.portfolio-cta p {
  margin-bottom: var(--spacing-6);
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2);
  margin-top: var(--spacing-12);
}

.pagination-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--spacing-2);
  border-radius: var(--border-radius);
  background-color: white;
  border: 1px solid var(--gray-200);
  color: var(--gray-700);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.pagination-item:hover,
.pagination-item.active {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

.pagination-item.prev,
.pagination-item.next {
  padding: 0 var(--spacing-4);
}

/* ======= About Section ======= */
.about {
  background-color: white;
}

.about-content {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--spacing-12);
  align-items: center;
}

.about-text p {
  color: var(--gray-600);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-4);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-4);
}

.stat-item {
  background-color: var(--gray-50);
  border-radius: var(--border-radius);
  padding: var(--spacing-6);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-2);
}

.stat-label {
  color: var(--gray-600);
  font-weight: 500;
}

/* ======= Contact Section ======= */
.contact {
  background-color: var(--gray-50);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-12);
}

.contact-form {
  background-color: white;
  padding: var(--spacing-8);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-2);
  font-weight: 500;
  color: var(--gray-800);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-3);
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

#form-message {
  margin-top: var(--spacing-4);
  padding: var(--spacing-3);
  border-radius: var(--border-radius);
  display: none;
}

#form-message.success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success-color);
  display: block;
}

#form-message.error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--error-color);
  display: block;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.contact-item {
  display: flex;
  gap: var(--spacing-4);
  align-items: flex-start;
}

.contact-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-full);
  background-color: rgba(99, 102, 241, 0.1);
  position: relative;
  flex-shrink: 0;
}

.contact-icon::before,
.contact-icon::after {
  content: "";
  position: absolute;
  background-color: var(--primary-color);
}

.email-icon::before {
  width: 20px;
  height: 16px;
  border-radius: 2px;
  border: 2px solid var(--primary-color);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.phone-icon::before {
  width: 18px;
  height: 18px;
  border: 2px solid var(--primary-color);
  border-radius: 3px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.phone-icon::after {
  width: 4px;
  height: 8px;
  background-color: var(--primary-color);
  top: 60%;
  left: 50%;
  transform: translateX(-50%);
}

.location-icon::before {
  width: 16px;
  height: 16px;
  border: 2px solid var(--primary-color);
  border-radius: 50%;
  top: 40%;
  left: 50%;
  transform: translateX(-50%);
}

.location-icon::after {
  width: 2px;
  height: 10px;
  background-color: var(--primary-color);
  top: 58%;
  left: 50%;
  transform: translateX(-50%);
}

.contact-text h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-1);
}

.contact-text p {
  color: var(--gray-600);
  margin-bottom: 0;
}

/* ======= Footer ======= */
.site-footer {
  background-color: var(--gray-900);
  color: var(--gray-400);
  padding: var(--spacing-12) 0;
  margin-top: auto;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-6);
}

.footer-logo .logo-icon {
  background-color: var(--primary-color);
}

.footer-logo .logo-text {
  color: white;
  font-weight: 700;
  font-size: 1.5rem;
}

.footer-info {
  margin-bottom: var(--spacing-6);
}

.footer-info p {
  margin-bottom: var(--spacing-2);
}

.footer-social {
  display: flex;
  gap: var(--spacing-4);
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  background-color: rgba(255, 255, 255, 0.1);
  transition: background-color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.social-icon:hover {
  background-color: var(--primary-color);
}

.social-icon::before,
.social-icon::after {
  content: "";
  position: absolute;
  background-color: white;
}

.instagram-icon::before {
  width: 16px;
  height: 16px;
  border: 2px solid white;
  border-radius: 4px;
}

.instagram-icon::after {
  width: 6px;
  height: 6px;
  border: 2px solid white;
  border-radius: 50%;
}

.twitter-icon::before {
  width: 20px;
  height: 2px;
  background-color: white;
  transform: rotate(45deg);
  top: 50%;
  left: 50%;
  margin-top: -1px;
  margin-left: -10px;
}

.twitter-icon::after {
  width: 10px;
  height: 10px;
  border: 2px solid white;
  border-right: none;
  border-bottom: none;
  transform: rotate(-45deg);
  top: 50%;
  left: 50%;
  margin-top: -3px;
  margin-left: -8px;
}

.facebook-icon::before {
  width: 16px;
  height: 16px;
  border: 2px solid white;
  border-radius: 2px;
}

.facebook-icon::after {
  width: 2px;
  height: 10px;
  background-color: white;
  top: 35%;
  left: 65%;
}

.linkedin-icon::before {
  width: 16px;
  height: 16px;
  border: 2px solid white;
  border-radius: 2px;
}

.linkedin-icon::after {
  width: 6px;
  height: 6px;
  border: 2px solid white;
  border-radius: 50%;
  top: 35%;
  left: 35%;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-6);
  right: var(--spacing-6);
  width: 48px;
  height: 48px;
  background-color: var(--primary-color);
  color: white;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 99;
  box-shadow: var(--shadow);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 12px solid white;
}

/* Utility Classes */
.no-items {
  text-align: center;
  padding: var(--spacing-12);
  color: var(--gray-600);
}

.alert {
  padding: var(--spacing-4);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-6);
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--success-color);
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--error-color);
}

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

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animated {
  animation-duration: 1s;
  animation-fill-mode: both;
}

.fadeInUp {
  animation-name: fadeInUp;
}

.fadeInDown {
  animation-name: fadeInDown;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

.delay-3 {
  animation-delay: 0.6s;
}

/* ======= Responsive Styles ======= */

/* Tablet and smaller desktops */
@media (max-width: 1024px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
  }
  
  .about-stats {
    margin-top: var(--spacing-6);
  }
  
  .contact-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
  }
  
  .portfolio-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
  }
}

/* Mobile devices */
@media (max-width: 768px) {
  section {
    padding: var(--spacing-12) 0;
  }
  
  .hero {
    padding: 8rem 0 4rem;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1.125rem;
  }
  
  .hero-cta {
    flex-direction: column;
    gap: var(--spacing-3);
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: white;
    z-index: 1001;
    padding: 6rem var(--spacing-4) var(--spacing-4);
    transform: translateX(100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-lg);
  }
  
  .main-nav.active {
    transform: translateX(0);
  }
  
  .nav-menu {
    flex-direction: column;
    gap: var(--spacing-6);
  }
  
  .nav-menu li {
    margin-left: 0;
  }
  
  .nav-menu a {
    font-size: 1.25rem;
    display: block;
    padding: var(--spacing-2);
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }
  
  .services-grid,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }
  
  .stat-item {
    padding: var(--spacing-4);
  }
  
  .portfolio-filters {
    flex-direction: column;
    align-items: center;
  }
  
  .filter-btn {
    width: 100%;
    text-align: center;
  }
}

/* Small mobile devices */
@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .hero h1 {
    font-size: 1.75rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .section-header h2 {
    font-size: 1.75rem;
  }
  
  .additional-images {
    grid-template-columns: 1fr;
  }
  
  .pagination-item {
    min-width: 36px;
    height: 36px;
    font-size: 0.875rem;
  }
}