:root {
  --bg: #0a0e17;
  --bg-elevated: #111827;
  --surface: #151d2e;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #22d3ee;
  --accent-dim: rgba(34, 211, 238, 0.15);
  --danger: #f87171;
  --radius: 14px;
  --radius-sm: 10px;
  --font: "DM Sans", system-ui, sans-serif;
  --max: 1120px;
  --header-h: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}
.logo:hover {
  text-decoration: none;
  color: var(--accent);
}
.logo span {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.9rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
}
.nav-list a:hover {
  color: var(--text);
}

.nav-cta {
  background: var(--accent);
  color: #042f2e !important;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-weight: 600;
}
.nav-cta:hover {
  filter: brightness(1.05);
  color: #042f2e !important;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .nav-list {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    padding: 1.25rem;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    gap: 1rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }
  .nav-list.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

/* Hero + slider */
.hero {
  padding: 2.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr 1.05fr;
    gap: 3rem;
  }
}

.hero-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
}

.hero-lead {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 1.5rem;
  max-width: 36ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.15s ease, filter 0.15s ease;
}
.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: #042f2e;
}
.btn-primary:hover {
  filter: brightness(1.06);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--muted);
}

/* Slider */
.slider-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  aspect-ratio: 16 / 10;
  max-height: 420px;
}

.slider-track {
  display: flex;
  height: 100%;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
}
.slider-track::-webkit-scrollbar {
  display: none;
}

.slide {
  flex: 0 0 100%;
  scroll-snap-align: start;
  position: relative;
  min-height: 100%;
}

.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1rem 1.25rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.75));
  font-weight: 600;
  font-size: 0.95rem;
}

.slider-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 0 0;
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--border);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s;
}
.slider-dot.is-active {
  background: var(--accent);
}

.slider-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: rgba(10, 14, 23, 0.7);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  z-index: 2;
}
.slider-nav:hover {
  background: rgba(10, 14, 23, 0.9);
}
.slider-prev {
  left: 0.75rem;
}
.slider-next {
  right: 0.75rem;
}

@media (max-width: 768px) {
  .slider-nav {
    display: none;
  }
}

/* Sections */
section {
  padding: 3rem 0;
}

.section-title {
  font-size: 1.75rem;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.section-sub {
  color: var(--muted);
  margin: 0 0 2rem;
  max-width: 50ch;
}

.services-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}
.service-card:hover {
  border-color: rgba(34, 211, 238, 0.35);
  transform: translateY(-2px);
}

.service-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.service-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Contact */
.contact {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-elevated) 100%);
  border-top: 1px solid var(--border);
}

.contact-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 800px) {
  .contact-grid {
    grid-template-columns: 1fr 1.1fr;
    align-items: start;
  }
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
}
.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-status {
  margin-top: 0.75rem;
  font-size: 0.9rem;
}
.form-status.ok {
  color: #4ade80;
}
.form-status.err {
  color: var(--danger);
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 700px) {
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
}

.site-footer h4 {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer li {
  margin-bottom: 0.4rem;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}
.site-footer a:hover {
  color: var(--accent);
}

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

/* Utilities */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}