/* ─── Reset & Base ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0a0a0a;
  --bg-2:      #111111;
  --bg-card:   #161616;
  --border:    #222222;
  --accent:    #5b6af0;
  --accent-2:  #7c3aed;
  --text:      #f0f0f0;
  --text-muted:#888888;
  --text-dim:  #555555;
  --radius:    12px;
  --radius-lg: 20px;
  --max-w:     1280px;
  --font:      'Inter', 'Helvetica Neue', Arial, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ─── Layout helpers ────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}

section { padding: 120px 0; }

.label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 28px;
}

h1, h2, h3, h4 {
  line-height: 1.1;
  letter-spacing: -0.025em;
}

/* ─── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: #4858e8; transform: translateY(-1px); }

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

/* ─── Nav ───────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav-logo {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo .brand-mark {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 7px;
  display: grid; place-items: center;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

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

.nav-dropdown { position: relative; }

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
  padding: 0;
}

.nav-dropdown-toggle .caret { font-size: 0.7rem; transition: transform 0.15s ease; }

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 190px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
  box-shadow: 0 12px 32px rgba(0,0,0,0.35);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown:hover .nav-dropdown-toggle .caret { transform: rotate(180deg); }

.nav-dropdown-menu a {
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.nav-dropdown-menu a:hover { background: var(--bg-2); color: var(--text); }

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

.lang-toggle {
  padding: 10px 16px;
  font-size: 0.85rem;
  gap: 6px;
}
.lang-toggle .lang-flag { font-size: 1rem; line-height: 1; }

/* ─── Hero ──────────────────────────────────────────────── */
.hero {
  padding: 140px 0 120px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(91,106,240,0.12) 0%, transparent 65%);
  pointer-events: none;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.hero-badge .dot {
  width: 6px; height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 700;
  max-width: 820px;
  margin-bottom: 28px;
}

.hero h1 .grad {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 48px;
  line-height: 1.7;
}

.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }

.hero-trust {
  margin-top: 80px;
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.trust-stat { text-align: left; }
.trust-stat strong { display: block; font-size: 2rem; font-weight: 700; letter-spacing: -0.04em; }
.trust-stat span   { font-size: 0.85rem; color: var(--text-muted); }

/* ─── Features ──────────────────────────────────────────── */
.features { background: var(--bg-2); }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 64px;
  gap: 40px;
  flex-wrap: wrap;
}

.section-head h2 { font-size: clamp(2rem, 4vw, 3rem); max-width: 560px; }
.section-head p  { font-size: 1rem; color: var(--text-muted); max-width: 380px; line-height: 1.7; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.feature-card {
  background: var(--bg-card);
  padding: 40px;
  transition: background 0.2s;
}
.feature-card:hover { background: #1a1a1a; }
.feature-card:first-child { border-radius: var(--radius-lg) 0 0 0; }
.feature-card:nth-child(3) { border-radius: 0 var(--radius-lg) 0 0; }
.feature-card:nth-child(4) { border-radius: 0 0 0 var(--radius-lg); }
.feature-card:last-child { border-radius: 0 0 var(--radius-lg) 0; }

.feature-icon {
  width: 48px; height: 48px;
  background: var(--bg-2);
  border-radius: 12px;
  display: grid; place-items: center;
  font-size: 1.4rem;
  margin-bottom: 24px;
}

.feature-card h3 { font-size: 1.15rem; margin-bottom: 12px; font-weight: 600; }
.feature-card p  { font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }

/* ─── Plans ─────────────────────────────────────────────── */
.billing-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 4px;
  margin: 24px 0 8px;
}

.billing-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 100px;
  border: none;
  background: transparent;
  font: inherit;
  font-size: 0.86rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.billing-btn.active { background: var(--accent); color: #fff; }
.billing-btn:not(.active):hover { color: var(--text); }

.billing-btn .save-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 100px;
  background: rgba(46,204,113,0.18);
  color: #2ecc71;
}

.billing-btn.active .save-badge { background: rgba(255,255,255,0.22); color: #fff; }

.plans-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 64px;
}

.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
}
.plan-card:hover { border-color: var(--accent); transform: translateY(-4px); }

.plan-card.featured {
  border-color: var(--accent);
  background: linear-gradient(160deg, #0f1133 0%, var(--bg-card) 60%);
}

.plan-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 100px;
}

.plan-name {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.plan-price .amount { font-size: 3rem; font-weight: 700; letter-spacing: -0.05em; }
.plan-price .period { font-size: 0.9rem; color: var(--text-muted); }

.plan-billed-note { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 8px; min-height: 1.2em; }

.plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.6;
}

.plan-features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
}

.plan-features li::before {
  content: '✓';
  width: 18px; height: 18px;
  background: rgba(91,106,240,0.15);
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 0.65rem;
  color: var(--accent);
  flex-shrink: 0;
}

.plan-card .btn { width: 100%; justify-content: center; }

/* ─── How it works ──────────────────────────────────────── */
.how { background: var(--bg-2); }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  margin-top: 64px;
}

.step {
  background: var(--bg-card);
  padding: 40px 32px;
}

.step-num {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.step h3 { font-size: 1.1rem; margin-bottom: 12px; }
.step p  { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; }

/* ─── Locations ─────────────────────────────────────────── */
.locations-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 64px;
}

.locations-intro h2 { font-size: clamp(2rem, 4vw, 3rem); }
.locations-intro p  { font-size: 1rem; color: var(--text-muted); line-height: 1.7; margin-top: 20px; }

.regions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
}

.region {
  background: var(--bg-card);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: background 0.2s;
}
.region:hover { background: #1a1a1a; }

.region-flag { font-size: 1.6rem; }
.region-info strong { display: block; font-size: 0.9rem; font-weight: 600; }
.region-info span   { font-size: 0.78rem; color: var(--text-muted); }

/* ─── Testimonials ──────────────────────────────────────── */
.testimonials { background: var(--bg-2); }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 64px;
}

.testimonial {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.testimonial-stars { font-size: 0.85rem; margin-bottom: 16px; color: #f59e0b; }
.testimonial p     { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 24px; }

.testimonial-author { display: flex; align-items: center; gap: 12px; }
.author-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  font-size: 0.8rem;
  font-weight: 600;
  flex-shrink: 0;
}
.author-name  { font-size: 0.88rem; font-weight: 600; }
.author-title { font-size: 0.78rem; color: var(--text-muted); }

/* ─── CTA ───────────────────────────────────────────────── */
.cta-section {
  text-align: center;
  padding: 160px 0;
}

.cta-section h2 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 20px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section p {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 48px;
}

.cta-actions { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ─── Footer ────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 64px 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-brand p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; max-width: 260px; }

.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col li a { font-size: 0.9rem; color: var(--text-muted); transition: color 0.2s; }
.footer-col li a:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 40px;
  margin-top: 40px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 12px;
}

/* ─── Contact page ──────────────────────────────────────── */
.contact-hero {
  padding: 100px 0 80px;
  border-bottom: 1px solid var(--border);
}

.contact-hero h1 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: 20px; }
.contact-hero p  { font-size: 1.1rem; color: var(--text-muted); max-width: 520px; line-height: 1.7; }

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  padding: 80px 0;
}

.contact-layout-solo {
  grid-template-columns: 1fr;
  max-width: 640px;
  margin: 0 auto;
}

.contact-info { display: flex; flex-direction: column; gap: 48px; }

.contact-info-block h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.contact-info-block p,
.contact-info-block a  { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; }
.contact-info-block a:hover { color: var(--text); }

.contact-channels {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-channel {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}
.contact-channel:hover { border-color: var(--accent); }
.contact-channel .ch-icon { font-size: 1.2rem; }
.contact-channel .ch-label { font-size: 0.78rem; color: var(--text-muted); display: block; }
.contact-channel .ch-value { font-size: 0.9rem; font-weight: 500; }

/* ─── Form ──────────────────────────────────────────────── */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
}

.contact-form h2 { font-size: 1.6rem; margin-bottom: 8px; }
.contact-form .form-sub { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 40px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }

.form-field label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.form-field input,
.form-field select,
.form-field textarea {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.92rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--accent);
}

.form-field select option { background: var(--bg-2); }
.form-field textarea { resize: vertical; min-height: 120px; }

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 28px;
}

.form-check input[type="checkbox"] {
  width: 16px; height: 16px;
  border-radius: 4px;
  border: 1px solid var(--border);
  accent-color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
}

.form-check label { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; cursor: pointer; }
.form-check a { color: var(--accent); }

.form-submit { width: 100%; justify-content: center; padding: 16px; font-size: 1rem; }

.form-status { margin-top: 14px; font-size: 0.88rem; text-align: center; min-height: 1.2em; }
.form-status-success { color: #2ecc71; }
.form-status-error { color: #e74c3c; }

/* ─── FAQ ───────────────────────────────────────────────── */
.faq-section { background: var(--bg-2); padding: 80px 0; }

.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
}

.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px;
}

.faq-item h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 10px; }
.faq-item p  { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; }

/* ─── Download pages ────────────────────────────────────── */
.download-hero {
  padding: 100px 0 60px;
  border-bottom: 1px solid var(--border);
}

.download-hero h1 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: 20px; }
.download-hero p  { font-size: 1.1rem; color: var(--text-muted); max-width: 620px; line-height: 1.7; }

.protocol-switch { display: flex; gap: 10px; margin-top: 28px; }
.protocol-switch a {
  padding: 10px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--text-muted);
}
.protocol-switch a.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.protocol-switch a:hover:not(.active) { color: var(--text); }

.device-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 64px 0;
}

.device-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.device-icon {
  width: 48px; height: 48px;
  background: var(--bg-2);
  border-radius: 12px;
  display: grid; place-items: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.device-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
.device-card > p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 20px; }

.device-steps {
  list-style: decimal;
  padding-left: 18px;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.device-card .btn { width: 100%; justify-content: center; }

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 1024px) {
  .features-grid,
  .plans-grid,
  .testimonials-grid { grid-template-columns: 1fr 1fr; }

  .steps { grid-template-columns: 1fr 1fr; }
  .regions-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .locations-intro { grid-template-columns: 1fr; gap: 24px; }
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .faq-grid { grid-template-columns: 1fr; }
  .device-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  section { padding: 80px 0; }
  .hero { padding: 80px 0 80px; }

  .features-grid,
  .plans-grid,
  .steps,
  .testimonials-grid { grid-template-columns: 1fr; }
  .device-grid { grid-template-columns: 1fr; }

  .feature-card:first-child,
  .feature-card:nth-child(3),
  .feature-card:nth-child(4),
  .feature-card:last-child { border-radius: 0; }

  .nav-links { display: none; }
  .section-head { flex-direction: column; }
  .footer-inner { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-trust { gap: 24px; }
  .contact-form { padding: 28px 20px; }
}