:root {
  --background: #0b1120;
  --surface: #121b2e;
  --surface-light: #1b2940;
  --text: #f1f5f9;
  --muted: #a8b3c7;
  --accent: #58d5c9;
  --border: #29364d;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 85px;
}

body {
  min-width: 320px;
  background: var(--background);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1100px, 90%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 17, 32, 0.94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.navigation {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  color: var(--text);
  font-size: 1.4rem;
  font-weight: 800;
}

.brand span {
  color: var(--accent);
}

.navigation-links {
  display: flex;
  gap: 26px;
  list-style: none;
}

.navigation-links a {
  color: var(--muted);
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.navigation-links a:hover,
.social-links a:hover {
  color: var(--accent);
}

.menu-button {
  display: none;
  border: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 1.6rem;
}

.hero {
  min-height: 570px;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  align-items: center;
  gap: 60px;
  padding-top: 70px;
  padding-bottom: 70px;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 700px;
  margin: 16px 0;
  font-size: clamp(2.8rem, 7vw, 5rem);
  line-height: 1.08;
}

.hero h1 span {
  color: var(--accent);
}

.hero-description,
.section-description {
  max-width: 650px;
  color: var(--muted);
}

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

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  background-color: rgb(23, 181, 170);
}
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  cursor: pointer;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--accent);
  color: #07131a;
}

.button-secondary {
  color: var(--accent);
}

.button-secondary:hover {
  background: rgba(88, 213, 201, 0.1);
}

.hero-card {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background:
    radial-gradient(circle at top right, rgba(88, 213, 201, 0.16), transparent 45%),
    var(--surface);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.2);
}

.hero-card-icon {
  margin-bottom: 22px;
  font-size: 3.3rem;
}

.hero-card-label {
  color: var(--muted);
}

.hero-card h2 {
  margin: 3px 0 18px;
  font-size: 1.8rem;
}

.tool-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool-list span,
.project-tag {
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 30px;
  background: var(--surface-light);
  color: var(--accent);
  font-size: 0.82rem;
}

.section {
  padding-top: 72px;
  padding-bottom: 72px;
}

.section-heading {
  margin-bottom: 24px;
}

.section-heading h2 {
  margin: 5px 0 8px;
  font-size: clamp(2rem, 4vw, 2.7rem);
}

.about-panel,
.info-card,
.project-card,
.contact-form {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}

.about-panel {
  display: grid;
  gap: 14px;
  padding: 26px;
  color: var(--muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.info-card,
.project-card {
  padding: 22px;
}

.info-card {
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.info-card:hover,
.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.card-icon {
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 1.8rem;
}

.info-card h3,
.project-card h3 {
  margin-bottom: 8px;
}

.info-card p,
.project-card p {
  color: var(--muted);
}

.projects-grid {
  margin-top: 24px;
}

.project-card {
  display: flex;
  min-height: 255px;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.project-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.project-number {
  color: #728099;
  font-size: 0.85rem;
}

.project-link {
  margin-top: auto;
  padding-top: 22px;
  color: var(--accent);
  font-weight: 700;
}

.contact-form {
  display: grid;
  gap: 10px;
  max-width: 650px;
  padding: 24px;
}

.contact-form label {
  margin-top: 8px;
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  background: #0d1525;
  color: var(--text);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
}

.contact-form textarea {
  resize: vertical;
}

.contact-form button {
  justify-self: start;
  margin-top: 10px;
}

.form-status {
  min-height: 24px;
  color: var(--accent);
}

.form-status.error {
  color: #ff8585;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 22px;
}

.social-links a {
  color: var(--muted);
}

.site-footer {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  text-align: center;
  font-size: 0.9rem;
}

@media (max-width: 760px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 36px;
    padding-top: 75px;
    padding-bottom: 60px;
  }

  .hero-card {
    max-width: 480px;
  }

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

@media (max-width: 600px) {
  .navigation {
    position: relative;
    min-height: 66px;
  }

  .menu-button {
    display: block;
  }

  .navigation-links {
    position: absolute;
    top: 66px;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 8px 5%;
    border-bottom: 1px solid var(--border);
    background: var(--background);
  }

  .navigation-links.is-open {
    display: flex;
  }

  .navigation-links a {
    display: block;
    padding: 12px 0;
  }

  .section {
    padding-top: 55px;
    padding-bottom: 55px;
  }

  .contact-form {
    padding: 18px;
  }
}