:root {
  --container-width: 1100px;
  --color-text: #ffffff;
  --color-secondaryText: #94a3b8;
  --background-primary: #00d1ff;
  --background-primary-10: #00d1ff1a;
  --background-secondary: #0b0e14;
  --background-tertiary: #1e293b;
  --background-gradient: linear-gradient(
    to right,
    var(--background-primary),
    var(--accent)
  );
  --background-gradient-hover: linear-gradient(to right, #5a52e0, #e05572);
  --blur-25: blur(25px);
  --blur-200: blur(200px);
  --shadow-default: 0px 4px 12px rgba(0, 0, 0, 0.25);
  --radius-default: 8px;
  --radius-full: 9999px;
  --accent: #6366f1;
  --typography-fontFamily: "Inter", sans-serif;
  --typography-fontWeight-regular: 400;
  --typography-fontWeight-medium: 500;
  --typography-fontWeight-semiBold: 600;
  --typography-fontWeight-bold: 700;
  --typography-fontSize-title: 64px;
  --typography-fontSize-subtitle: 40px;
  --typography-fontSize-caption: 24px;
  --typography-fontSize-body: 18px;
  --typography-fontSize-md: 16px;
  --typography-fontSize-sm: 14px;
  --typography-fontSize-xs: 12px;
  --typography-fontSize-xxs: 10px;
  --typography-letterSpacing: -2%;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--typography-fontFamily);
  background: var(--background-secondary);
}

header {
  background: rgba(11, 14, 20, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(40px) saturate(150%);
  position: sticky;
  top: 0;
}

section {
  scroll-margin-top: 150px;
}

button {
  outline: none;
  border: none;
  cursor: pointer;
}

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

.animated-link {
  position: relative;
  font-size: 0.9rem;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.animated-link:hover {
  opacity: 1;
}

.animated-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.animated-link:hover::after {
  width: 100%;
}

.blur-element {
  width: 400px;
  height: 400px;
  position: absolute;
  background: var(--background-tertiary);
  border-radius: var(--radius-full);
  filter: var(--blur-200);
  z-index: -1;
}

nav.nav-section,
.nav-section ul {
  display: flex;
}

nav.nav-section {
  justify-content: space-between;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 14px 0;
}

.nav-section svg {
  width: 200px;
}

.nav-section ul {
  align-items: center;
  list-style: none;
  gap: 20px;
}

.nav-section h2 {
  color: var(--color-text);
}

main {
  margin-top: 72px;
}

.hero-section {
  max-width: var(--container-width);
  margin: 0 auto;
}

.hero-section span {
  font-size: var(--typography-fontSize-sm);
  font-weight: var(--typography-fontWeight-regular);
  color: var(--background-primary);
  text-transform: uppercase;
}

.hero-section h2 {
  font-size: var(--typography-fontSize-title);
  font-weight: var(--typography-fontWeight-bold);
  letter-spacing: var(--typography-letterSpacing);
  background: var(--background-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 45px;
  margin-bottom: 20px;
}

.hero-section p {
  font-size: var(--typography-fontSize-subtitle);
  font-weight: var(--typography-fontWeight-semiBold);
  color: var(--color-secondaryText);
}

.hero-section button {
  padding: 8px 24px;
  text-transform: uppercase;
  font-weight: var(--typography-fontWeight-bold);
  background: var(--background-gradient);
  border-radius: var(--radius-default);
  box-shadow: var(--shadow-default);
  transition:
    transform 0.3s ease,
    filter 0.3s ease;
  margin-top: 40px;
}

.hero-section button:hover {
  transform: translateY(-2px);
  filter: brightness(0.8);
}

.projects-section {
  max-width: var(--container-width);
  margin: 140px auto 0;
}

.projects-title {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.projects-title h3 {
  font-size: var(--typography-fontSize-subtitle);
  font-weight: var(--typography-fontWeight-bold);
  letter-spacing: var(--typography-letterSpacing);

  text-align: center;

  background: var(--background-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.projects-title span {
  font-size: var(--typography-fontSize-sm);
  font-weight: var(--typography-fontWeight-regular);
  color: var(--background-primary);
}

.projects {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.project-card {
  border-radius: var(--radius-default);
  background: rgba(255, 255, 255, 0.12);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  transition: transform 0.3s ease;
}

.project-card:hover {
  transform: translateY(-6px);
}

.project-card-icon {
  color: var(--background-primary);
  font-weight: var(--typography-fontWeight-bold);
}

.project-card h3 {
  font-size: var(--typography-fontSize-caption);
  color: var(--color-text);
  font-weight: var(--typography-fontWeight-medium);

  margin: 12px 0 8px;
}

.project-card p {
  font-size: var(--typography-fontSize-md);
  color: var(--color-text);
  font-weight: var(--typography-fontWeight-medium);

  margin-bottom: 12px;
}

.project-card-badge {
  display: inline-block;
  margin-top: 12px;

  padding: 6px 12px;
  border-radius: 999px;

  font-size: var(--typography-fontSize-xxs);
  font-weight: var(--typography-fontWeight-bold);
}

.badge-performance {
  color: var(--background-primary);
  background: var(--background-primary-10);
}

.badge-design {
  color: #6366f1;
  background: #6366f11a;
}

.badge-cloud {
  color: #ffffff;
  background: #ffffff1a;
}

.footer {
  margin-top: 80px;
  padding: 32px 20px;

  text-align: center;

  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.footer span {
  font-size: var(--typography-fontSize-xs);
  color: var(--color-text);
  opacity: 0.7;
}

@media (max-width: 1024px) {
  .projects {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .projects {
    grid-template-columns: 1fr;
  }
}