:root {
  --bg: #0b0e14;
  --bg-alt: #111522;
  --surface: #161b2b;
  --surface-2: #1c2235;
  --border: #262c40;
  --text: #e8ecf5;
  --text-dim: #a7afc4;
  --accent: #5b8cff;
  --accent-2: #7df9ff;
  --accent-grad: linear-gradient(135deg, #5b8cff, #7df9ff);
  --ua-blue: #2e6fd1;
  --ua-yellow: #f0c419;
  --danger: #ff6b5b;
  --ok: #1fbf75;
  --radius: 14px;
  --maxw: 1180px;
  font-size: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
  line-height: 1.6;
}

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

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

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 88px 0; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 16px; }
h2 { font-size: clamp(28px, 4vw, 38px); }
h3 { font-size: 20px; }
p { color: var(--text-dim); margin: 0 0 16px; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 14px;
}

.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head.center { margin-inline: auto; text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, opacity .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent-grad); color: #07101f; }
.btn-primary:hover { opacity: .92; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,14,20,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { width: 128px; height: auto; }
.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0; padding: 0;
  font-size: 15px;
  font-weight: 600;
}
.nav-links a { color: var(--text-dim); }
.nav-links a:hover { color: var(--text); }

.nav-right { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; justify-content: flex-end; }

.lang-switch { display: flex; gap: 4px; font-size: 13px; font-weight: 700; }
.lang-switch a {
  padding: 5px 9px;
  border-radius: 7px;
  color: var(--text-dim);
  border: 1px solid transparent;
}
.lang-switch a:hover { color: var(--text); border-color: var(--border); }
.lang-switch a.active { color: var(--bg); background: var(--accent-2); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--text); }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 40px; }
.hero .container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}
.hero-copy { max-width: 760px; }
.hero h1 { font-size: clamp(32px, 5vw, 52px); }
.hero-sub { font-size: 18px; max-width: 620px; }
.hero-ctas { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.hero-art { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.hero-art img { width: 100%; }
.hero-flags {
  display: flex; gap: 10px; align-items: center; margin-top: 30px;
  font-size: 13px; color: var(--text-dim);
}
.flag-chip {
  width: 22px; height: 15px; border-radius: 2px; overflow: hidden; flex-shrink: 0;
  background: linear-gradient(to bottom, var(--ua-blue) 50%, var(--ua-yellow) 50%);
  box-shadow: 0 0 0 1px var(--border);
}

/* ---------- Context / problem band ---------- */
.band {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.band .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.stat b { display: block; font-size: 30px; color: var(--accent-2); }
.stat span { font-size: 14px; color: var(--text-dim); }

/* ---------- Services ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card .ico {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-grad);
  margin-bottom: 18px;
  font-size: 22px;
}
.card p { margin-bottom: 0; font-size: 15px; }

/* ---------- Audience ---------- */
.audience-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; list-style: none; margin: 0; padding: 0; }
.audience-list li {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  font-size: 15px;
  color: var(--text);
}
.audience-list li .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--ok); margin-top: 6px; flex-shrink: 0;
}

/* ---------- Process ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}
.step { position: relative; padding: 26px 20px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.step .num {
  font-size: 13px; font-weight: 800; color: var(--bg);
  background: var(--accent-grad);
  width: 30px; height: 30px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.step h3 { margin-bottom: 8px; }
.step p { font-size: 14px; margin: 0; }

/* ---------- Partners strip ---------- */
.partners { text-align: center; }
.partner-row {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 28px;
}
.partner-chip {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-weight: 700;
  font-size: 14px;
  color: var(--text-dim);
}

/* ---------- CTA band ---------- */
.cta-band {
  background: radial-gradient(circle at 20% 20%, rgba(91,140,255,0.18), transparent 60%), var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-band h2 { margin-bottom: 8px; }
.cta-band p { margin: 0; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.contact-info .item { display: flex; gap: 14px; margin-bottom: 20px; align-items: flex-start; }
.contact-info .item .ico {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 18px;
}
.contact-info .item b { display: block; }
.contact-info .item a, .contact-info .item span.val { color: var(--text-dim); }

form.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 14px;
}
.contact-form label { font-size: 13px; font-weight: 700; color: var(--text-dim); display: block; margin-bottom: 6px; }
.contact-form input, .contact-form textarea {
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--accent); }
.contact-form .hint { font-size: 12px; color: var(--text-dim); margin: 0; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}
.footer-row {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px;
}
.footer-nav { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; font-size: 14px; }
.footer-nav a { color: var(--text-dim); }
.footer-nav a:hover { color: var(--text); }
.footer-copy { font-size: 13px; color: var(--text-dim); margin-top: 24px; text-align: center; }

/* ---------- Responsive ---------- */
@media (min-width: 880px) {
  .hero .container { grid-template-columns: 1.1fr 1fr; align-items: center; }
}

@media (max-width: 880px) {
  .nav-links, .lang-switch { display: none; }
  .nav-toggle { display: flex; }
  .nav.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    gap: 16px;
  }
  .nav.open .lang-switch {
    display: flex;
    position: absolute;
    top: 64px; left: 0; right: 0;
    transform: translateY(170px);
    padding: 0 24px 20px;
    background: var(--bg-alt);
  }
  .band .container, .contact-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .audience-list { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  section { padding: 56px 0; }
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .cta-band { padding: 32px; flex-direction: column; text-align: center; }
  .nav-right .btn { padding: 10px 14px; font-size: 13px; }
}

/* ---------- Login modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 8, 13, 0.72);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.modal-card h3 { margin-bottom: 20px; }
.modal-card label {
  font-size: 13px; font-weight: 700; color: var(--text-dim);
  display: block; margin-bottom: 6px;
}
.modal-card input {
  width: 100%;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  margin-bottom: 14px;
}
.modal-card input:focus { outline: none; border-color: var(--accent); }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }

/* ---------- Login page ---------- */
.login-wrap {
  min-height: calc(100vh - 140px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
}
.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}
.login-card .lock {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--accent-grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 18px;
}
.login-error {
  display: none;
  background: rgba(255, 107, 91, 0.12);
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
  margin-bottom: 16px;
}
.login-error.show { display: block; animation: shake .4s ease; }
.login-loading {
  display: none;
  align-items: center;
  gap: 10px;
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 16px;
}
.login-loading.show { display: flex; }
.spinner {
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid var(--border);
  border-top-color: var(--accent-2);
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}
.login-support { font-size: 13px; color: var(--text-dim); margin-top: 22px; text-align: center; }
.login-back { display: inline-block; margin-top: 18px; font-size: 14px; color: var(--text-dim); }
.login-back:hover { color: var(--text); }

.lang-switch-static { display: flex !important; }