:root {
  --primary-color: #3f51b5;
  --primary-dark: #303f9f;
  --primary-light: #7986cb;
  --secondary-color: #ff4081;
  --secondary-dark: #c2185b;
  --text-dark: #212121;
  --text-light: #757575;
  --background-light: #fafafa;
  --background-dark: #f5f5f5;
  --white: #ffffff;
  --black: #000000;
  --success: #4caf50;
  --border-radius: 4px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --container-width: 1200px;
  --shadow-sm: 0 2px 5px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: "Poppins", sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--background-light);
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Raleway", sans-serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 3rem;
}

h2 {
  font-size: 2.5rem;
  position: relative;
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  height: 4px;
  width: 60px;
  background-color: var(--secondary-color);
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-light);
}

ul {
  list-style: none;
}

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

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

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

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

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

.section-title h2 {
  display: inline-block;
}

.section-title h2::after {
  left: 50%;
  transform: translateX(-50%);
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.btn:hover {
  background-color: var(--primary-dark);
  color: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

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

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

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

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

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: transparent;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  transition: var(--transition);
}

.header.scrolled {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo a {
  color: var(--white);
  font-weight: 700;
  font-size: 1.8rem;
  transition: var(--transition);
}

.header.scrolled .logo a {
  color: var(--primary-color);
}

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

.nav-menu {
  display: flex;
  margin-left: auto;
}

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

.nav-menu a {
  color: var(--white);
  font-weight: 500;
  position: relative;
  padding: 5px 0;
}

.header.scrolled .nav-menu a {
  color: var(--text-dark);
}

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

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

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

.header.scrolled .menu-btn {
  color: var(--text-dark);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  background: linear-gradient(to bottom right, #0a1a33, #014f86);

  display: flex;
  align-items: center;
  text-align: center;
  color: var(--white);
  position: relative;
}

.hero-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.hero-text {
  flex: 1;
  min-width: 280px;
}

.hero-image {
  flex: 1;
  min-width: 280px;
  max-width: 500px;
  text-align: center;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  animation: fadeInUp 1s ease forwards 2s;
}

/* Responsive adjustment: stack image below text */
@media (max-width: 768px) {
  .hero-wrapper {
    flex-direction: column;
    text-align: center;
  }

  .hero-text {
    order: 1;
  }

  .hero-image {
    order: 2;
    margin-top: var(--spacing-md);
  }
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease forwards 0.5s;
  color: var(--white);
}

.hero-title {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease forwards;
}

.hero-description {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease forwards 1s;
  color: var(--white);
}

.hero-btn {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s ease forwards 1.5s;
}

.scroll-down {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  color: var(--white);
  font-size: 2rem;
  animation: bounce 2s infinite;
}

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

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

@media (max-width: 768px) {
  .hero {
    padding-top: 12rem; /* or whatever "shitload" you want */
    padding-bottom: 4rem; /* optional: add some bottom spacing too */
  }
}

/* About Section */
.about {
  background: linear-gradient(to bottom right, #0a1a33, #014f86);
}

.about-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-lg);
}

.about-img {
  flex: 1;
  min-width: 300px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-img img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

.about-img:hover img {
  transform: scale(1.05);
}

.about-text {
  flex: 1;
  min-width: 300px;
  color: var(--white);
}

.about-text h2::after {
  left: 0;
  transform: none;
}

.about-description {
  margin-bottom: var(--spacing-md);
  color: var(--white);
}

.expertise {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.expertise-item {
  flex: 1;
  min-width: 150px;
  text-align: center;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  background-color: var(--background-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.expertise-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.expertise-title {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: #000000;
}

/* Portfolio Section */
.portfolio {
  background-color: var(--background-dark);
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-lg);
  gap: 10px;
}

.filter-btn {
  padding: 8px 20px;
  background-color: transparent;
  border: 1px solid var(--primary-color);
  border-radius: 30px;
  color: var(--text-dark);
  cursor: pointer;
  transition: var(--transition);
}

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

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

.portfolio-item {
  display: flex;
  flex-direction: column;
  height: 100%;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background-color: var(--white);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(20px);
}

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

.portfolio-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.portfolio-img {
  position: relative;
  overflow: hidden;
  height: 200px;
}

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

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

.portfolio-hover {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(63, 81, 181, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition);
}

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

.portfolio-hover-content {
  color: var(--white);
  text-align: center;
}

.portfolio-hover-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-xs);
}

.portfolio-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  height: 100%;
  padding: var(--spacing-md);
}
.portfolio-content > div:last-child {
  margin-top: auto;
  display: flex;
  justify-content: flex-end;
}

.portfolio-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xs);
}

.portfolio-category {
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
}

.portfolio-description {
  margin-bottom: var(--spacing-sm);
  font-size: 0.95rem;
}

.portfolio-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--spacing-sm);
}

.portfolio-tech-item {
  padding: 4px 10px;
  background-color: var(--background-dark);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-light);
}

.author-img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
}

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

.author-info h4 {
  font-size: 1.1rem;
  margin-bottom: 0;
}

.author-info p {
  font-size: 0.9rem;
  margin-bottom: 0;
}

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

.contact-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.contact-info {
  flex: 1;
  min-width: 300px;
}

.contact-info h2::after {
  left: 0;
  transform: none;
}

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

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

.contact-icon {
  margin-right: var(--spacing-sm);
  color: var(--primary-color);
  font-size: 1.5rem;
}

.contact-text h4 {
  margin-bottom: var(--spacing-xs);
  font-size: 1.1rem;
}

.contact-text p {
  margin-bottom: 0;
}

.contact-form {
  flex: 1;
  min-width: 300px;
  background-color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--text-dark);
}

.form-control {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: var(--border-radius);
  font-family: "Poppins", sans-serif;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(63, 81, 181, 0.2);
}

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

.form-submit {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
}

.form-message {
  display: none;
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  text-align: center;
}

.form-message.success {
  display: block;
  background-color: rgba(76, 175, 80, 0.1);
  color: var(--success);
  border: 1px solid var(--success);
}

/* Footer */
.footer {
  background-color: #1a1a1a;
  color: #888;
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-info {
  flex: 2;
  min-width: 300px;
}

.footer-logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--spacing-sm);
  display: inline-block;
}

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

.footer-description {
  margin-bottom: var(--spacing-md);
  max-width: 400px;
}

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

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: var(--white);
  transition: var(--transition);
}

.social-icon:hover {
  background-color: var(--primary-color);
  transform: translateY(-3px);
}

.footer-links {
  flex: 1;
  min-width: 200px;
}

.footer-title {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 1.2rem;
  position: relative;
  padding-bottom: var(--spacing-xs);
}

.footer-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background-color: var(--secondary-color);
}

.footer-links ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-links ul li a {
  color: #888;
  transition: var(--transition);
}

.footer-links ul li a:hover {
  color: var(--white);
  padding-left: 5px;
}

.footer-contact {
  flex: 1;
  min-width: 200px;
}

.footer-contact-item {
  display: flex;
  margin-bottom: var(--spacing-xs);
}

.footer-contact-icon {
  margin-right: var(--spacing-xs);
  color: var(--primary-light);
}

.footer-copyright {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 992px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1.3rem;
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--spacing-lg) 0;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: var(--white);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    z-index: 999;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-menu li {
    margin: var(--spacing-sm) 0;
  }

  .nav-menu a {
    color: var(--text-dark);
    font-size: 1.2rem;
  }

  .menu-btn {
    display: block;
    z-index: 1000;
  }

  .menu-btn.active {
    color: var(--text-dark);
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

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

  .expertise-item {
    flex: 0 0 calc(50% - var(--spacing-sm));
  }

  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .expertise-item {
    flex: 0 0 100%;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}