:root {
  /* Color Scheme */
  --primary-color: #2d3e50;
  --secondary-color: #1abc9c;
  --accent-color: #e74c3c;
  --light-color: #ecf0f1;
  --dark-color: #2c3e50;
  --gray-color: #95a5a6;
  
  /* Typography */
  --heading-font: 'Montserrat', sans-serif;
  --body-font: 'Open Sans', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  /* Borders & Shadows */
  --border-radius: 4px;
  --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  --box-shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.2);
  
  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-slow: 0.6s ease;
}

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

html {
  font-size: 62.5%; /* 1rem = 10px */
  scroll-behavior: smooth;
}

body {
  font-family: var(--body-font);
  font-size: 1.6rem;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--light-color);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

h1 { font-size: 4.8rem; }
h2 { font-size: 3.6rem; }
h3 { font-size: 2.8rem; }
h4 { font-size: 2.4rem; }
h5 { font-size: 2rem; }
h6 { font-size: 1.8rem; }

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

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

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

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

ul, ol {
  list-style-position: inside;
  margin-bottom: var(--spacing-md);
}

button, .btn {
  display: inline-block;
  background-color: var(--secondary-color);
  color: white;
  font-family: var(--body-font);
  font-size: 1.6rem;
  font-weight: 600;
  padding: 1.2rem 2.4rem;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 1px;
}

button:hover, .btn:hover {
  background-color: var(--accent-color);
  transform: translateY(-3px);
  box-shadow: var(--box-shadow-hover);
}

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

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

.container {
  width: 100%;
  max-width: 120rem;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 8rem;
  height: 0.4rem;
  background-color: var(--secondary-color);
}

.questions-for-employers h3 {
  font-size: 2.5rem;
  color: var(--light-color);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.questions-for-employers {
  display: flex;                /* enables flexbox */
  justify-content: center;      /* centers the block horizontally */
  background-color: var(--dark-color);
  padding: var(--spacing-lg);
}

.questions-for-employers ol {
  text-align: left;             /* keeps the text left-aligned */
  max-width: 700px;             /* optional: limit line length for readability */
  color: var(--light-color);
}

/* ===== HEADER & NAVIGATION ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--primary-color);
  z-index: 1000;
  transition: all var(--transition-fast);
}

.header.scrolled {
  box-shadow: var(--box-shadow);
  padding: 1rem 0;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0;
}

.logo {
  font-family: var(--heading-font);
  font-size: 2.4rem;
  font-weight: 700;
  color: white;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.logo span {
  color: var(--secondary-color);
}

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

.nav-item {
  margin-left: var(--spacing-md);
}

.nav-link {
  color: white;
  font-weight: 600;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--secondary-color);
  transition: width var(--transition-fast);
}

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

.hamburger {
  display: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background-color: white;
  transition: all var(--transition-fast);
}

/* ===== HERO SECTION ===== */
.hero {
  height: 100vh;
  background: linear-gradient(rgba(45, 62, 80, 0.8), rgba(45, 62, 80, 0.8)), url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  color: white;
  position: relative;
}

.hero-content {
  text-align: center;
  max-width: 80rem;
  margin: 0 auto;
}

.hero-title {
  font-size: 6rem;
  color: white;
  margin-bottom: var(--spacing-md);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards 0.5s;
}

.hero-subtitle {
  font-size: 2.4rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards 0.8s;
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1s forwards 1.1s;
}

.scroll-down {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: white;
  opacity: 0;
  animation: fadeIn 1s forwards 1.5s;
}

.scroll-down i {
  font-size: 2.4rem;
  margin-top: 1rem;
  animation: bounce 2s infinite;
}

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

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-20px);
  }
  60% {
    transform: translateY(-10px);
  }
}

/* ===== ABOUT SECTION ===== */
.about {
  background-color: white;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.about-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
}

.about-text h2 {
  margin-bottom: var(--spacing-md);
}

.about-text p {
  margin-bottom: var(--spacing-md);
}

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

.skills-title {
  margin-bottom: var(--spacing-sm);
  font-size: 2rem;
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.skill-item {
  background-color: var(--light-color);
  padding: 0.8rem 1.6rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.4rem;
  transition: all var(--transition-fast);
}

.skill-item:hover {
  background-color: var(--secondary-color);
  color: white;
  transform: translateY(-3px);
}

/* ===== SERVICES SECTION ===== */
.services {
  background-color: var(--light-color);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(30rem, 1fr));
  gap: var(--spacing-md);
}

.service-card {
  background-color: white;
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  text-align: center;
  box-shadow: var(--box-shadow);
  transition: all var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--box-shadow-hover);
}

.service-icon {
  font-size: 4rem;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-md);
}

.service-title {
  margin-bottom: var(--spacing-sm);
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio {
  background-color: white;
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
  gap: 1rem;
}

.filter-btn {
  background-color: transparent;
  color: var(--dark-color);
  border: none;
  padding: 0.8rem 1.6rem;
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.filter-btn.active,
.filter-btn:hover {
  background-color: var(--secondary-color);
  color: white;
  transform: translateY(-3px);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px; /* spacing between items */
}

.portfolio-item {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  height: auto;
}

.portfolio-img {
  transition: transform var(--transition-slow);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(26, 188, 156, 0.9);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.portfolio-item:hover .portfolio-img {
  transform: scale(1.1);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-title {
  color: white;
  margin-bottom: var(--spacing-sm);
}

.portfolio-category {
  color: white;
  font-size: 1.4rem;
  margin-bottom: var(--spacing-md);
}

.portfolio-link {
  display: inline-block;
  width: 5rem;
  height: 5rem;
  background-color: white;
  border-radius: 50%;
  text-align: center;
  line-height: 5rem;
  margin: 0 0.5rem;
  transition: all var(--transition-fast);
}

.portfolio-link i {
  color: var(--secondary-color);
  font-size: 2rem;
}

.portfolio-link:hover {
  background-color: var(--primary-color);
}

.portfolio-link:hover i {
  color: white;
}

/* Modal container */
.modal-content {
  max-width: 1000px;
  margin: auto;
  padding: 20px;
  background: #fff;
  border-radius: 10px;
}

/* Each project section */
.modal-info {
  display: flex;
  gap: 40px; /* space between left and right columns */
  margin-bottom: 60px; /* space between stacked projects */
  align-items: center; /* vertical alignment for description */
}

/* Left column (image + details stacked) */
.modal-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center; /* centers details under image */
  text-align: center;
}

.modal-img {
  max-width: 300px;
  margin-bottom: 20px;
}

.modal-img img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.modal-details {
  max-width: 280px;
}

/* Right column (description centered) */
.modal-description {
  flex: 2;
}

/* Responsive stacking for smaller screens */
@media (max-width: 768px) {
  .modal-info {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .modal-description {
    flex: unset;
    width: 100%;
    margin-top: 20px;
  }
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
  background-color: var(--light-color);
}

.testimonial-slider {
  max-width: 80rem;
  margin: 0 auto;
  position: relative;
}

.testimonial-item {
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  text-align: center;
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--spacing-md);
  position: relative;
}

.testimonial-text::before,
.testimonial-text::after {
  content: '"';
  font-size: 5rem;
  color: var(--secondary-color);
  opacity: 0.3;
  position: absolute;
}

.testimonial-text::before {
  top: -2rem;
  left: -1rem;
}

.testimonial-text::after {
  bottom: -4rem;
  right: -1rem;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.author-img {
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--spacing-sm);
}

.author-name {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.author-position {
  color: var(--gray-color);
  font-size: 1.4rem;
}

.slider-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 5rem;
  height: 5rem;
  background-color: white;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  box-shadow: var(--box-shadow);
  transition: all var(--transition-fast);
}

.slider-nav:hover {
  background-color: var(--secondary-color);
}

.slider-nav:hover i {
  color: white;
}

.slider-prev {
  left: -2.5rem;
}

.slider-next {
  right: -2.5rem;
}

.slider-dots {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-md);
}

.slider-dot {
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
  background-color: var(--gray-color);
  margin: 0 0.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slider-dot.active,
.slider-dot:hover {
  background-color: var(--secondary-color);
}

/* ===== CONTACT SECTION ===== */
.contact {
  background-color: white;
}

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

.contact-info {
  display: flex;
  flex-direction: column;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
}

.contact-icon {
  font-size: 2.4rem;
  color: var(--secondary-color);
  margin-right: var(--spacing-sm);
}

.contact-details h4 {
  margin-bottom: 0.5rem;
}

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

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: var(--spacing-md);
}

.social-link {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 4rem;
  height: 4rem;
  background-color: var(--light-color);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.social-link i {
  font-size: 1.8rem;
  color: var(--primary-color);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--secondary-color);
}

.social-link:hover i {
  color: white;
}

.contact-form {
  background-color: var(--light-color);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
}

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

.form-control {
  width: 100%;
  padding: 1.2rem;
  border: 1px solid #ddd;
  border-radius: var(--border-radius);
  font-family: var(--body-font);
  font-size: 1.6rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 2px rgba(26, 188, 156, 0.2);
}

textarea.form-control {
  min-height: 15rem;
  resize: vertical;
}

.form-submit {
  width: 100%;
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--primary-color);
  color: white;
  padding: var(--spacing-lg) 0;
  text-align: center;
}

.footer-content {
  max-width: 60rem;
  margin: 0 auto;
}

.footer-logo {
  font-family: var(--heading-font);
  font-size: 3rem;
  font-weight: 700;
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer-logo span {
  color: var(--secondary-color);
}

.footer-text {
  margin-bottom: var(--spacing-md);
}

.footer-links {
  display: flex;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.footer-link {
  color: white;
  margin: 0 var(--spacing-sm);
  transition: color var(--transition-fast);
}

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

.footer-social {
  display: flex;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.footer-social-link {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 4rem;
  height: 4rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  margin: 0 0.5rem;
  transition: all var(--transition-fast);
}

.footer-social-link i {
  color: white;
  font-size: 1.8rem;
}

.footer-social-link:hover {
  background-color: var(--secondary-color);
}

.copyright {
  font-size: 1.4rem;
  color: var(--gray-color);
}

/* ===== ANIMATIONS ===== */
.reveal {
  position: relative;
  opacity: 0;
  transform: translateY(30px);
  transition: all 1s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ===== MEDIA QUERIES ===== */
@media screen and (max-width: 1024px) {
  html {
    font-size: 56.25%; /* 1rem = 9px */
  }
  
  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .about-image {
    margin-bottom: var(--spacing-md);
    max-width: 50rem;
    margin-left: auto;
    margin-right: auto;
  }
  
  .skills-list {
    justify-content: center;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .contact-info {
    margin-bottom: var(--spacing-md);
  }
}

@media screen and (max-width: 768px) {
  html {
    font-size: 50%; /* 1rem = 8px */
  }
  
  .hamburger {
    display: block;
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .nav-menu {
    position: fixed;
    top: -100%;
    left: 0;
    width: 100%;
    background-color: var(--primary-color);
    flex-direction: column;
    text-align: center;
    transition: all var(--transition-fast);
    box-shadow: var(--box-shadow);
    padding: var(--spacing-md) 0;
  }
  
  .nav-menu.active {
    top: 7rem;
  }
  
  .nav-item {
    margin: var(--spacing-sm) 0;
  }
  
  .hero-title {
    font-size: 4.8rem;
  }
  
  .hero-subtitle {
    font-size: 2rem;
  }
  
  .hero-cta {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .slider-nav {
    display: none;
  }
}

@media screen and (max-width: 480px) {
  .section-title {
    font-size: 3rem;
  }
  
  .hero-title {
    font-size: 3.6rem;
  }
  
  .hero-subtitle {
    font-size: 1.8rem;
  }
  
  .portfolio-filter {
    flex-direction: column;
    align-items: center;
  }
}

.slcLogo {
  width: 300px;
  height: auto;
}