:root {
  --primary-50: #f0f4ff;
  --primary-500: #3b5bdb;
  --primary-600: #3451c7;
  --primary-700: #2c44a8;
  --primary-900: #1a2a6b;

  --dark-900: #0f172a;
  --dark-800: #1e293b;
  --dark-700: #334155;
  --dark-600: #475569;

  --text-hi: #f1f5f9;
  --text-mid: #cbd5e1;
  --text-low: #94a3b8;

  --radius: 14px;
  --container-w: 1180px;
  --header-h: 68px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--dark-900);
  color: var(--text-mid);
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* Ambient background grid */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(ellipse 900px 500px at 15% -5%, rgba(59, 91, 219, 0.28), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 20%, rgba(59, 91, 219, 0.14), transparent 60%),
    linear-gradient(var(--dark-900), var(--dark-900));
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-hi);
  white-space: nowrap;
}

.brand-logo {
  height: 34px;
  width: auto;
}

.brand-accent { color: var(--primary-500); }

.main-nav {
  display: none;
  align-items: center;
  gap: 28px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-mid);
}

.main-nav a:hover { color: var(--text-hi); }

.nav-cta {
  padding: 8px 18px;
  border-radius: 999px;
  background: var(--primary-500);
  color: #fff !important;
  font-weight: 600;
}

.nav-cta:hover { background: var(--primary-600); }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  font-weight: 700;
}
.lang-switch a {
  padding: 4px 8px;
  border-radius: 6px;
  color: var(--text-low) !important;
}
.lang-switch a.active { color: var(--primary-500) !important; background: rgba(59, 91, 219, 0.12); }
.lang-switch a:hover { color: var(--text-hi) !important; }

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 0 auto;
  background: var(--text-hi);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile dropdown nav */
@media (max-width: 899px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--dark-800);
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .main-nav.open { max-height: 480px; display: flex; }
  .main-nav a {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .nav-cta { margin: 14px 20px; text-align: center; justify-content: center; }
  .lang-switch { padding: 12px 20px; border-bottom: 1px solid rgba(148, 163, 184, 0.08); }
  .lang-switch a { padding: 8px 14px; min-height: 32px; border-bottom: none !important; }
}

@media (min-width: 900px) {
  .main-nav { display: flex; }
  .nav-toggle { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  min-height: 48px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease, border-color 0.2s ease;
}

.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--primary-500);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-600); }

.btn-ghost {
  background: transparent;
  border-color: rgba(148, 163, 184, 0.35);
  color: var(--text-hi);
}
.btn-ghost:hover { border-color: var(--primary-500); color: #fff; }

.btn-lg { padding: 16px 34px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ---------- Typography helpers ---------- */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary-500);
  margin: 0 0 10px;
}

h1, h2, h3, h4 { color: var(--text-hi); margin: 0; font-weight: 800; }

h1 { font-size: clamp(2rem, 7vw, 3.4rem); line-height: 1.12; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 4.5vw, 2.3rem); letter-spacing: -0.01em; margin-bottom: 14px; }
h3 { font-size: 1.15rem; margin-bottom: 8px; }
h4 { font-size: 1.02rem; margin-bottom: 6px; }

.center { text-align: center; }
.left { text-align: left; }

.section-sub {
  color: var(--text-low);
  font-size: 1.02rem;
  max-width: 640px;
  margin: 0 auto 42px;
}
.section-sub.left { margin: 0 0 28px; max-width: 100%; }

.lg-only { display: none; }
@media (min-width: 640px) { .lg-only { display: inline; } }

/* ---------- Hero ---------- */
.hero {
  padding: 56px 0 40px;
}

.hero-inner { text-align: center; max-width: 780px; margin: 0 auto; }

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-low);
  margin: 20px auto 30px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
  max-width: 320px;
  margin: 0 auto;
}

@media (min-width: 520px) {
  .hero-actions { flex-direction: row; justify-content: center; max-width: none; }
}

.hero-visual {
  margin: 48px auto 0;
  padding: 0 20px;
  max-width: 720px;
}

.mock-panel {
  background: var(--dark-800);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(59, 91, 219, 0.08);
}

.mock-panel-top {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.dot { width: 9px; height: 9px; border-radius: 50%; }
.dot-r { background: #ef4444; }
.dot-y { background: #f59e0b; }
.dot-g { background: #22c55e; }

.mock-panel-title {
  margin-left: 10px;
  font-size: 0.8rem;
  color: var(--text-low);
}

.mock-panel-body {
  padding: 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.mock-stat {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 10px;
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.mock-stat-num { font-size: 1.3rem; font-weight: 800; color: var(--text-hi); }
.mock-stat-ok .mock-stat-num { color: #4ade80; }
.mock-stat-label { font-size: 0.68rem; color: var(--text-low); text-align: center; }

.mock-bars {
  grid-column: 1 / -1;
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 60px;
  margin-top: 4px;
}
.mock-bars span {
  flex: 1;
  height: var(--h);
  background: linear-gradient(180deg, var(--primary-500), var(--primary-700));
  border-radius: 3px 3px 0 0;
  opacity: 0.85;
}

/* ---------- Trust strip ---------- */
.trust-strip {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  background: rgba(255, 255, 255, 0.015);
  padding: 22px 0;
}

.trust-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 10px;
  text-align: center;
}

.trust-item {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-mid);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.trust-ico { font-size: 1.4rem; }

@media (min-width: 700px) {
  .trust-inner { grid-template-columns: repeat(5, 1fr); }
  .trust-item { flex-direction: row; gap: 8px; font-size: 0.85rem; }
}

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section-alt { background: rgba(255, 255, 255, 0.015); }

/* ---------- Features grid ---------- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 40px;
}

@media (min-width: 640px) {
  .features-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1000px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
}

.feature-card {
  background: var(--dark-800);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: rgba(59, 91, 219, 0.45);
  transform: translateY(-3px);
}

.feature-ico {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.feature-card p { margin: 0; font-size: 0.92rem; color: var(--text-low); }

/* ---------- How it works / flow ---------- */
.flow {
  margin-top: 44px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.flow-step {
  background: var(--dark-800);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
}

.flow-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary-500);
  color: #fff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 0.95rem;
}

.flow-step p { margin: 0; font-size: 0.86rem; color: var(--text-low); }

.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-500);
  font-size: 1.3rem;
  font-weight: 700;
  transform: rotate(90deg);
  padding: 2px 0;
}

@media (min-width: 900px) {
  .flow { grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: stretch; }
  .flow-arrow { transform: none; }
}

/* ---------- Apps showcase ---------- */
.apps-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

@media (min-width: 900px) {
  .apps-inner { grid-template-columns: 1.1fr 0.9fr; gap: 60px; }
}

.check-list {
  list-style: none;
  margin: 24px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  font-size: 0.94rem;
  color: var(--text-mid);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary-500);
  font-weight: 800;
}

.platform-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.platform-badges span {
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(59, 91, 219, 0.14);
  border: 1px solid rgba(59, 91, 219, 0.35);
  color: var(--text-hi);
  font-size: 0.82rem;
  font-weight: 600;
}

.apps-visual {
  display: flex;
  justify-content: center;
  padding: 20px;
}

.apps-logo-big {
  max-width: 320px;
  width: 100%;
  filter: drop-shadow(0 20px 50px rgba(59, 91, 219, 0.25));
}

/* ---------- Security ---------- */
.security-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 40px;
}

@media (min-width: 640px) {
  .security-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1000px) {
  .security-grid { grid-template-columns: repeat(4, 1fr); }
}

.security-card {
  background: var(--dark-800);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
}

.security-card p { font-size: 0.86rem; color: var(--text-low); margin: 0; }

/* ---------- Pricing ---------- */
.pricing-group-label {
  margin: 44px 0 20px;
  text-align: center;
}
.pricing-group-label:first-of-type { margin-top: 40px; }
.pricing-group-label h3 {
  color: var(--text-hi);
  font-size: 1.05rem;
  margin: 0 0 6px;
}
.pricing-group-label p {
  color: var(--text-low);
  font-size: 0.86rem;
  margin: 0;
  max-width: 520px;
  margin: 0 auto;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.pricing-grid-2 { max-width: 760px; margin: 0 auto; }

@media (min-width: 640px) {
  .pricing-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1100px) {
  .pricing-grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.price-card {
  position: relative;
  background: var(--dark-800);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: var(--radius);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
}

.price-featured {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 1px rgba(59, 91, 219, 0.4), 0 20px 50px -20px rgba(59, 91, 219, 0.4);
}

.price-badge {
  position: absolute;
  top: -12px;
  left: 24px;
  background: var(--primary-500);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.price-tag {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 0 0 6px;
}

.price-amount {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--text-hi);
}

.price-period {
  font-size: 0.85rem;
  color: var(--text-low);
}

.price-alt {
  font-size: 0.78rem;
  color: var(--text-low);
  margin: 0 0 14px;
}

.price-limit {
  color: var(--primary-500);
  font-weight: 700;
  font-size: 0.9rem;
  margin: 0 0 20px;
}

.price-note {
  margin-top: 30px;
  font-size: 0.8rem;
  color: var(--text-low);
}

.price-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.price-card li {
  font-size: 0.86rem;
  color: var(--text-mid);
  padding-left: 20px;
  position: relative;
}

.price-card li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--text-low);
}

/* ---------- Contact ---------- */
.contact-inner {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.contact-inner .section-sub { margin-bottom: 32px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  padding: 40px 0 30px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  text-align: center;
}

.footer-brand { justify-content: center; }

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  font-size: 0.86rem;
  color: var(--text-low);
}

.footer-nav a:hover { color: var(--text-hi); }

.footer-copy {
  font-size: 0.78rem;
  color: var(--text-low);
  margin: 0;
}

@media (min-width: 780px) {
  .footer-inner { flex-direction: row; justify-content: space-between; text-align: left; }
  .footer-brand { justify-content: flex-start; }
}

/* ---------- Reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}