:root {
  --bg: #081120;
  --bg-2: #0d1b2a;
  --surface: #101c30;
  --surface-2: #13243d;
  --card: rgba(255, 255, 255, 0.05);
  --white: #ffffff;
  --text: #d9e2f1;
  --muted: #9fb0c9;
  --primary: #25c2ff;
  --primary-2: #4df3c5;
  --accent: #6c63ff;
  --success: #35d07f;
  --danger: #ff6b6b;
  --border: rgba(255, 255, 255, 0.1);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.32);
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(37, 194, 255, 0.12), transparent 35%),
    radial-gradient(circle at bottom right, rgba(77, 243, 197, 0.10), transparent 30%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(8, 17, 32, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  color: var(--white);
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #03111d;
  font-weight: 800;
  box-shadow: var(--shadow);
}

.brand-text {
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 26px;
}

.nav-menu a {
  color: var(--text);
  font-weight: 500;
  transition: 0.2s ease;
}

.nav-menu a:hover,
.nav-menu a.active-link {
  color: var(--white);
}

.active-link {
  position: relative;
}

.active-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  border-radius: 999px;
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 46px;
  height: 46px;
  padding: 0;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  background: var(--white);
  transition: 0.25s ease;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  border-radius: 999px;
  padding: 14px 22px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: 0.25s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #04121d;
  box-shadow: 0 14px 30px rgba(37, 194, 255, 0.22);
}

.btn-block {
  width: 100%;
}

/* HERO */
.contact-hero {
  padding: 72px 0 40px;
}

.hero-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.eyebrow,
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary-2);
}

.hero-copy h1 {
  margin: 14px 0;
  font-size: clamp(2.3rem, 4vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--white);
}

.hero-copy p {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-point {
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.95rem;
}

.hero-card {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03)),
    rgba(255, 255, 255, 0.03);
  box-shadow: var(--shadow);
}

.mini-badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(77, 243, 197, 0.15);
  color: var(--primary-2);
  font-weight: 700;
  font-size: 0.85rem;
}

.hero-card h3 {
  color: var(--white);
  margin: 14px 0 10px;
  font-size: 1.5rem;
}

.hero-card p {
  color: var(--muted);
  margin-bottom: 18px;
}

.quick-info {
  display: grid;
  gap: 12px;
}

.quick-info div {
  padding: 13px 14px;
  border-radius: 12px;
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--border);
  color: var(--text);
}

/* CONTACT */
.contact-section {
  padding: 40px 0 88px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 28px;
  align-items: start;
}

.contact-info h2 {
  margin: 12px 0;
  font-size: clamp(2rem, 3vw, 2.8rem);
  line-height: 1.12;
  color: var(--white);
}

.contact-text {
  color: var(--muted);
  margin-bottom: 28px;
}

.info-cards {
  display: grid;
  gap: 16px;
}

.info-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  box-shadow: var(--shadow);
}

.info-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(37,194,255,0.12), rgba(77,243,197,0.12));
  font-size: 1.2rem;
}

.info-card h3 {
  margin: 0 0 4px;
  color: var(--white);
}

.info-card p {
  margin: 0;
  color: var(--muted);
}

.form-card {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03)),
    rgba(255,255,255,0.03);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--white);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.035);
  color: var(--white);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
  outline: none;
  transition: 0.2s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #91a3bf;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(37, 194, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(37, 194, 255, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 130px;
}

.error-message {
  display: block;
  min-height: 18px;
  margin-top: 6px;
  color: var(--danger);
  font-size: 0.85rem;
}

.input-error {
  border-color: rgba(255, 107, 107, 0.7) !important;
  box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.1);
}

.form-note {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.form-note a {
  color: var(--primary-2);
}

.form-success {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(53, 208, 127, 0.12);
  border: 1px solid rgba(53, 208, 127, 0.3);
  color: #baf3d1;
  display: none;
}

/* FOOTER */
.site-footer {
  padding-top: 30px;
  border-top: 1px solid var(--border);
  background: rgba(0,0,0,0.14);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 24px;
  padding: 36px 0;
}

.footer-brand {
  margin-bottom: 14px;
}

.site-footer h4 {
  margin-top: 0;
  color: var(--white);
}

.site-footer p,
.site-footer li,
.site-footer a {
  color: var(--muted);
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 18px 0 28px;
  text-align: center;
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero-wrap,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: 79px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 18px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: rgba(8, 17, 32, 0.96);
    box-shadow: var(--shadow);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu a {
    padding: 10px 6px;
  }

  .active-link::after {
    display: none;
  }

  .contact-hero {
    padding-top: 54px;
  }

  .hero-copy h1 {
    font-size: 2.3rem;
  }
}