/* Global Variables */
:root {
  /* Primary Colors */
  --clr-bg: #0b0c10;
  --clr-surface: #1f2833;
  --clr-primary: #45f3ff;
  --clr-primary-dark: #32bcc6;

  /* Text Colors */
  --clr-text-main: #f8f8f8;
  --clr-text-muted: #c5c6c7;

  /* Typography */
  --ff-primary: "Inter", sans-serif;
  --fw-light: 300;
  --fw-regular: 400;
  --fw-semibold: 600;
  --fw-bold: 800;

  /* Spacing  */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-xxl: 8rem;

  /* Layout */
  --max-width: 1200px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--ff-primary);
  background-color: var(--clr-bg);
  color: var(--clr-text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

h1,
h2,
h3,
h4 {
  line-height: 1.2;
  font-weight: var(--fw-bold);
  color: var(--clr-text-main);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: var(--space-sm);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: var(--space-sm);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

p {
  color: var(--clr-text-muted);
}

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-padding {
  padding: var(--space-xxl) 0;
}

@media screen and (max-width: 576px) {
  .section-padding {
    padding: var(--space-xl) 0;
  }
}

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

.section-title p {
  color: var(--clr-primary);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.9rem;
}

.btn {
  display: inline-block;
  padding: 0.8rem 2.5rem;
  border-radius: 4px;
  font-weight: var(--fw-semibold);
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-normal);
}

.btn-primary {
  background-color: var(--clr-primary);
  color: var(--clr-bg);
  box-shadow: 0 0 15px color-mix(in srgb, var(--clr-primary), transparent 60%);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-primary);
  box-shadow: 0 0 25px color-mix(in srgb, var(--clr-primary), transparent 40%);
  transform: translateY(-2px);
}

/* Header & Navigation */
.header {
  background-color: color-mix(in srgb, var(--clr-bg), transparent 10%);
  backdrop-filter: blur(10px);
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 1000;
  border-bottom: 1px solid color-mix(in srgb, var(--clr-text-main), transparent 95%);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
}

.logo a {
  font-size: 1.8rem;
  font-weight: var(--fw-bold);
  letter-spacing: -1px;
}

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

/* Hamburger Menu */
.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
  display: block;
  background: var(--clr-text-main);
  height: 3px;
  width: 25px;
  border-radius: 3px;
  position: relative;
  transition: all var(--transition-fast);
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
  content: "";
  position: absolute;
}

.nav-toggle-label span::before {
  bottom: 8px;
}
.nav-toggle-label span::after {
  top: 8px;
}

/* Desktop Navigation */
.nav ul {
  display: flex;
  gap: var(--space-md);
}

.nav a {
  font-weight: var(--fw-semibold);
  position: relative;
  font-size: 1rem;
  padding: 0.5rem 0;
}

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

.nav a:hover,
.nav a:focus {
  color: var(--clr-primary);
}

.nav a:hover::after,
.nav a:focus::after {
  width: 100%;
}

/* Mobile Navigation */
@media screen and (max-width: 767px) {
  .nav-toggle-label {
    display: block;
    z-index: 1001;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--clr-surface);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--transition-normal);
    border-bottom: 2px solid var(--clr-primary);
    visibility: hidden;
  }

  .nav ul {
    flex-direction: column;
    text-align: left;
    padding: var(--space-md) var(--space-sm);
    gap: var(--space-md);
  }

  .nav-toggle:checked ~ .nav {
    transform: scaleY(1);
    visibility: visible;
  }

  .nav-toggle:checked ~ .nav-toggle-label span {
    background: transparent;
  }

  .nav-toggle:checked ~ .nav-toggle-label span::before {
    transform: rotate(45deg);
    bottom: 0;
    background: var(--clr-primary);
  }

  .nav-toggle:checked ~ .nav-toggle-label span::after {
    transform: rotate(-45deg);
    top: 0;
    background: var(--clr-primary);
  }

  .nav a::after {
    display: none;
  }
}

.nav a i {
  color: var(--clr-primary-dark);
  font-size: 1.2rem;
  margin-right: 10px;
}
@media screen and (min-width: 768px) {
  .nav a i {
    display: none;
  }
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 60px;
  background: radial-gradient(circle at 20% 50%, var(--clr-surface) 0%, var(--clr-bg) 60%);
  position: relative;
  overflow: hidden;
}

.hero-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hero-content,
.image-svg {
  position: relative;
  z-index: 1;
}

.hero-content {
  flex: 1 1 60%;
  max-width: 650px;
}

.image-svg {
  flex: 1 1 40%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.image-svg img {
  display: block;
  width: 100%;
  height: 100%;
  animation: up-and-down 6s linear infinite;
}

.hero h1 span {
  color: var(--clr-primary);
  position: relative;
  display: inline-block;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
}

@media screen and (max-width: 991px) {
  .image-svg {
    display: none;
  }
  .hero-content {
    text-align: center;
    max-width: 100%;
    flex: 1 1 100%;
  }
  .hero-wrapper {
    justify-content: center;
  }
}

@keyframes up-and-down {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-40px);
  }
}

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.service-card {
  background-color: var(--clr-surface);
  padding: var(--space-lg) var(--space-md);
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--clr-text-main), transparent 95%);
  transition:
    transform var(--transition-normal),
    border-color var(--transition-normal);
  position: relative;
}

.service-card::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--clr-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
  border-radius: 0 0 8px 8px;
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--clr-primary), transparent 70%);
}

.service-card:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

.service-card i {
  font-size: 2.5rem;
  color: var(--clr-primary);
  margin-bottom: var(--space-sm);
}

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

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
}

.portfolio-item {
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.portfolio-item:focus-visible {
  outline: 3px solid var(--clr-primary);
  outline-offset: 5px;
  box-shadow: 0 0 20px var(--clr-primary);
  transform: translateY(-5px);
}

.portfolio-placeholder {
  background-color: var(--clr-bg);
  height: 300px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform var(--transition-normal);
}

.portfolio-placeholder i {
  font-size: 4rem;
  color: rgba(255, 255, 255, 0.05);
  transition: color var(--transition-normal);
}

.portfolio-info {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--space-md);
  background: linear-gradient(to top, color-mix(in srgb, var(--clr-bg), transparent 5%), transparent);
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.portfolio-info h3 {
  color: var(--clr-primary);
}

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

.portfolio-item:hover .portfolio-placeholder i {
  color: rgba(69, 243, 255, 0.2);
}

.portfolio-item:hover .portfolio-info {
  transform: translateY(0);
}

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

.contact-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

@media (min-width: 992px) {
  .contact-wrapper {
    flex-direction: row;
    align-items: stretch;
  }
}

.contact-column {
  flex: 1;
  background-color: var(--clr-surface);
  padding: var(--space-md);
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--clr-text-main), transparent 95%);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
}

@media screen and (max-width: 576px) {
  .contact-column {
    padding: var(--space-sm);
  }
}

/* Contact Info & Forms */
.contact-text {
  margin-bottom: var(--space-md);
  text-align: center;
}

.contact-text h3 {
  color: var(--clr-text-main);
  margin-bottom: var(--space-xs);
}

.contact-text p {
  color: var(--clr-text-muted);
}

.contact-visual {
  width: 100%;
  max-width: 350px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-visual img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 15px rgba(69, 243, 255, 0.1));
}

/* Form */
.contact-form {
  width: 100%;
  max-width: 500px;
  margin-inline: auto;
}

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  background-color: var(--clr-bg);
  border: 1px solid rgba(255, 255, 255, 0);
  border-radius: 4px;
  color: var(--clr-text-main);
  font-family: inherit;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 0 rgba(69, 243, 255, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  opacity: 1;
  transition: opacity var(--transition-normal);
}

.form-group input:focus::placeholder,
.form-group textarea:focus::placeholder {
  opacity: 0;
}

.contact-form .btn {
  width: 100%;
  border: none;
}

/* Footer */
.footer {
  background-color: var(--clr-surface);
  padding-top: var(--space-lg);
  border-top: 1px solid color-mix(in srgb, var(--clr-text-main), transparent 95%);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

@media screen and (max-width: 576px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

.footer-logo {
  margin-bottom: var(--space-sm);
}

.footer-logo a {
  font-size: 1.5rem;
  font-weight: var(--fw-bold);
}

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

.footer-logo p {
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

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

.footer-social a {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  transition: all var(--transition-normal);
}

.footer-social a:hover,
.footer-social a:focus {
  background-color: var(--clr-primary);
  color: var(--clr-bg);
  transform: translateY(-5px);
}

.footer-bottom {
  text-align: center;
  padding: var(--space-md) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
  font-size: 0.9rem;
}

/* Responsive */
@media screen and (max-width: 576px) {
  .hero-content h1 {
    font-size: 2.2rem;
  }
}