:root {
  --bg: #0b0d12;
  --surface: #111521;
  --surface-soft: rgba(17, 21, 33, 0.7);
  --text: #f5f7fa;
  --muted: #b5bcc9;
  --accent: #2f6bff;
  --accent-2: #00d4ff;
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --max-width: 1200px;
  --pad: clamp(20px, 3vw, 32px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.section {
  padding: clamp(64px, 8vw, 120px) 0;
}

.section-title {
  font-family: "Montserrat", "Inter", sans-serif;
  font-size: clamp(28px, 3vw, 40px);
  margin: 0 0 16px;
}

.section-lead {
  color: var(--muted);
  margin: 0 0 32px;
  max-width: 700px;
}

.glass {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.neu {
  box-shadow: 6px 6px 16px rgba(0, 0, 0, 0.45), -6px -6px 16px rgba(255, 255, 255, 0.03);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #fff;
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(47, 107, 255, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.35);
}

.header {
  position: sticky;
  top: 0;
  z-index: 30;
  transition: transform 0.3s ease;
}

.header.hidden {
  transform: translateY(-100%);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(140deg, rgba(47, 107, 255, 0.9), rgba(0, 212, 255, 0.9));
  box-shadow: 0 0 30px rgba(47, 107, 255, 0.45);
}

.brand-text span {
  display: block;
  font-size: 12px;
  color: var(--muted);
}

.nav-links {
  display: flex;
  gap: 16px;
  font-size: 14px;
  color: var(--muted);
}

.nav-links a {
  padding: 6px 10px;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switch {
  display: inline-flex;
  gap: 6px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid var(--line);
}

.lang-switch a {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--muted);
}

.lang-switch a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.socials {
  display: flex;
  gap: 8px;
}

.socials a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  transition: transform 0.2s ease, background 0.2s ease;
}

.socials a:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.08);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: #fff;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(9, 12, 18, 0.6);
  z-index: 1;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transform: scale(1.05);
  transition: opacity 0.6s ease, filter 0.6s ease;
}

.hero-media img.is-loaded {
  filter: grayscale(100%);
  opacity: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
}

.hero-title {
  font-family: "Montserrat", "Inter", sans-serif;
  font-size: clamp(36px, 4.5vw, 58px);
  margin: 0 0 16px;
}

.hero-lead {
  color: var(--muted);
  font-size: clamp(16px, 1.4vw, 20px);
  margin: 0 0 24px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  z-index: 2;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 10px;
}

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

.case-card img {
  border-radius: 14px;
  margin-bottom: 16px;
}

.testimonial {
  position: relative;
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.testimonial p {
  margin: 0 0 16px;
  color: var(--muted);
}

.cta {
  background: linear-gradient(120deg, rgba(47, 107, 255, 0.2), rgba(0, 212, 255, 0.15));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: calc(var(--radius) * 1.2);
  padding: clamp(32px, 5vw, 64px);
}

.footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
  background: #090b11;
}

.footer-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.contact-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  color: var(--muted);
}

.form {
  display: grid;
  gap: 12px;
}

.form input,
.form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.form input::placeholder,
.form textarea::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

@media (max-width: 900px) {
  .nav-links {
    position: absolute;
    top: 78px;
    right: var(--pad);
    flex-direction: column;
    background: var(--surface);
    padding: 16px;
    border-radius: 16px;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }

  .btn,
  .hero-media img,
  .header {
    transition: none !important;
  }
}