:root {
  --bg: #070b16;
  --surface: #0f172a;
  --surface-alt: #111a2d;
  --text: #eef2ff;
  --muted: #94a3b8;
  --primary: #4f8cff;
  --primary-dark: #2e5dc0;
  --accent: #6ee7b7;
  --border: rgba(255,255,255,0.08);
  --radius: 20px;
  --shadow: 0 18px 60px rgba(0,0,0,0.24);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, rgba(79,140,255,0.18), transparent 28%),
              radial-gradient(circle at bottom right, rgba(110,231,183,0.12), transparent 30%),
              var(--bg);
  color: var(--text);
}

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

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(7,11,22,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.brand-logo {
  width: 40px;
  height: 40px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.site-nav.nav-open {
  display: grid;
  gap: 1rem;
  padding: 1rem 0;
}

.site-nav a {
  color: var(--text);
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--accent);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #000;
}

.button-secondary {
  background: transparent;
  color: var(--text);
  border-color: rgba(255,255,255,0.12);
}

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

.section {
  padding: 4.5rem 0;
}

.section-primary {
  padding: 6rem 0 5rem;
}

.hero-grid,
.highlight-grid,
.about-grid,
.testimonials-grid,
.contact-grid,
.admin-grid {
  display: grid;
  gap: 2rem;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.1fr) 0.9fr;
  align-items: center;
}

.hero-copy .eyebrow,
.section-header .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: var(--accent);
  font-size: 0.78rem;
  margin-bottom: 1rem;
}

.hero-copy h1,
.section-header h1,
.section-header h2,
.service-detail h2,
.highlight-card h3,
.admin-panel h1,
.admin-panel h2 {
  margin: 0;
}

.hero-copy h1 {
  font-size: clamp(2.5rem, 4vw, 4.2rem);
  line-height: 1.02;
}

.lead {
  color: var(--muted);
  max-width: 60ch;
  margin: 1.5rem 0 2rem;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-visual {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 1.5rem;
  padding: 1.5rem;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: calc(var(--radius) * 1.2);
  background: linear-gradient(180deg, rgba(17,26,45,0.95) 0%, rgba(10,16,30,0.92) 100%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-illustration {
  width: 100%;
  min-height: 360px;
  display: grid;
  place-items: center;
}

.hero-illustration img {
  width: 100%;
  max-width: 100%;
  border-radius: 26px;
  box-shadow: 0 30px 90px rgba(0,0,0,0.26);
}

.hero-panels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.hero-panel {
  padding: 1rem 1.2rem;
  border-radius: 18px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
}

.hero-panel strong {
  display: block;
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.hero-panel span {
  color: var(--muted);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.tech-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  border-radius: 18px;
  background: rgba(79,140,255,0.14);
  color: var(--text);
  font-weight: 600;
}

.section-cards .section-header,
.section-simple .section-header {
  max-width: 60ch;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.service-card,
.service-detail,
.highlight-card,
.contact-details,
.contact-form,
.admin-panel,
.site-footer .footer-links > div,
.section-testimonials article {
  padding: 2rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
}

.service-card h3,
.service-detail h2,
.highlight-card h3,
.admin-panel h1,
.admin-panel h2,
.section-testimonials article h3 {
  margin-bottom: 0.9rem;
}

.highlight-grid {
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
}

.highlight-visual {
  display: grid;
  gap: 1rem;
}

.highlight-card.secondary {
  background: rgba(110,231,183,0.12);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 0.85rem;
}

.checklist li {
  position: relative;
  padding-left: 2rem;
  color: var(--muted);
}

.checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0.05rem;
  color: var(--accent);
}

.section-testimonials {
  padding-bottom: 5rem;
}

.testimonials-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.section-simple .about-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

.contact-grid {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form label {
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.95rem 1rem;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: var(--text);
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(79,140,255,0.32);
  border-color: rgba(79,140,255,0.45);
}

.form-status {
  margin: 0;
  color: var(--accent);
  min-height: 1.2rem;
}

.site-footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
}

.site-footer h4 {
  margin-top: 0;
}

.footer-links a,
.footer-links p {
  display: block;
  color: var(--muted);
  line-height: 1.8;
}

.footer-bottom {
  margin-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.5rem;
  color: var(--muted);
}

.admin-grid {
  grid-template-columns: 1.2fr 1fr;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.stat-card {
  padding: 1.5rem;
  border-radius: 22px;
  background: rgba(255,255,255,0.04);
}

.stat-value {
  display: block;
  font-size: 2.3rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.admin-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.submission-list {
  margin-top: 1.5rem;
  display: grid;
  gap: 1rem;
}

.submission-item {
  padding: 1rem;
  border-radius: 18px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}

.submission-item h3 {
  margin: 0 0 0.5rem;
}

.submission-item p {
  margin: 0.25rem 0;
  color: var(--muted);
}

.dim {
  color: rgba(255,255,255,0.65);
}

.admin-header,
.admin-footer {
  background: rgba(6,10,18,0.95);
}

@media (max-width: 960px) {
  .hero-grid,
  .highlight-grid,
  .about-grid,
  .contact-grid,
  .admin-grid,
  .card-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3rem 0;
  }
}

@media (max-width: 720px) {
  .header-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    justify-content: center;
    display: none;
  }

  .site-nav.nav-open {
    display: grid;
    gap: 1rem;
    padding: 1rem 0;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .hero-copy h1 {
    font-size: 2.7rem;
  }

  .contact-grid,
  .admin-grid {
    gap: 1.5rem;
  }
}