:root {
  /* Oyigha theme extracted from the provided Oyigha web app assets:
     primary blue #1a5fa8, learning orange #e67e22, app canvas #F5F8FA. */
  --oyigha-blue: #1a5fa8;
  --oyigha-blue-dark: #0f3f73;
  --oyigha-orange: #e67e22;
  --oyigha-orange-dark: #a75a05;
  --oyigha-green: #28ae7b;
  --oyigha-purple: #7854ab;
  --bg: #F5F8FA;
  --surface: #ffffff;
  --surface-soft: #eef6fd;
  --text: #102033;
  --muted: #536579;
  --line: #d8e7f3;
  --accent: var(--oyigha-blue);
  --accent-2: var(--oyigha-orange);
  --success: var(--oyigha-green);
  --hero-gradient: linear-gradient(135deg, rgba(26,95,168,0.96), rgba(15,63,115,0.96) 58%, rgba(230,126,34,0.92));
  --soft-gradient: radial-gradient(circle at 85% 10%, rgba(230,126,34,0.18), transparent 30%), radial-gradient(circle at 12% 18%, rgba(26,95,168,0.18), transparent 34%);
  --shadow: 0 20px 55px rgba(26, 95, 168, 0.16);
  --radius: 24px;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--max), calc(100% - 2rem)); margin: 0 auto; }
.topbar {
  position: sticky; top: 0; z-index: 30;
  background: rgba(255,255,255,0.9); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem;
  min-height: 64px; flex-wrap: nowrap;
}
.brand-title { font-weight: 800; letter-spacing: -0.03em; font-size: 1.1rem; }
.brand-sub { font-size: 0.77rem; color: var(--muted); white-space: nowrap; }
.nav {
  display: flex; align-items: center; gap: 0.75rem; flex-wrap: nowrap; white-space: nowrap;
}
.nav a { font-size: 0.875rem; color: var(--muted); }
.nav a:hover, .nav a.active { color: var(--text); font-weight: 600; }
.actions { display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0; }
.lang-switch {
  display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--surface);
}
.lang-switch button {
  border: 0; background: transparent; padding: 0.4rem 0.65rem; font-weight: 600; cursor: pointer; color: var(--muted); font-size: 0.82rem;
}
.lang-switch button.active { background: var(--text); color: white; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  border-radius: 999px; padding: 0.65rem 1.1rem; font-weight: 700;
  transition: 0.2s ease; border: 1px solid transparent; font-size: 0.88rem; white-space: nowrap;
}
.btn-primary { background: var(--text); color: white; box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-1px); opacity: 0.95; }
.btn-secondary { background: var(--surface); border-color: var(--line); color: var(--text); }
.btn-secondary:hover { background: #f1f5f9; }
.hero {
  padding: 5rem 0 4rem;
  background:
    radial-gradient(circle at 100% 0%, rgba(59,130,246,0.12), transparent 30%),
    radial-gradient(circle at 0% 100%, rgba(148,163,184,0.20), transparent 35%);
}
.hero-grid {
  display: grid; gap: 2rem; align-items: center; grid-template-columns: 1.1fr 0.9fr;
}
.badge {
  display: inline-flex; padding: 0.35rem 0.8rem; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--muted);
  font-size: 0.82rem; font-weight: 700;
}
.hero h1, .page-header h1 {
  font-size: clamp(2.4rem, 6vw, 4.6rem); line-height: 1.04; letter-spacing: -0.05em; margin: 1rem 0 1rem;
}
.lead { font-size: 1.15rem; color: var(--muted); max-width: 700px; }
.hero-actions { display: flex; gap: 0.85rem; flex-wrap: wrap; margin-top: 2rem; }
.card, .stat, .pricing-card, .faq-item, .team-card, .contact-card, .legal-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.dashboard {
  padding: 1.4rem;
}
.panel-dark {
  background: var(--text); color: white; border-radius: 26px; padding: 1.5rem;
}
.muted-on-dark { color: #cbd5e1; }
.metrics, .grid-3, .grid-2, .offers-grid, .team-grid, .contact-grid, .footer-grid { display: grid; gap: 1rem; }
.metrics { grid-template-columns: repeat(2, minmax(0,1fr)); margin-top: 1rem; }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.section { padding: 4.5rem 0; }
.section-sm { padding: 3rem 0; }
.section-title { font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1.12; letter-spacing: -0.04em; margin: 0.45rem 0 1rem; }
.section-kicker { text-transform: uppercase; letter-spacing: 0.2em; font-size: 0.78rem; color: var(--muted); font-weight: 800; }
.section-intro { color: var(--muted); max-width: 720px; }
.feature-card, .offer-card, .stat, .team-card, .contact-card, .faq-item, .legal-card { padding: 1.5rem; }
.feature-card h3, .offer-card h3, .team-card h3 { margin-top: 0.2rem; margin-bottom: 0.5rem; font-size: 1.25rem; }
.stat strong { display: block; font-size: 2rem; letter-spacing: -0.05em; }
.step-list { display: grid; gap: 1rem; }
.step {
  display: flex; gap: 1rem; align-items: flex-start; padding: 1rem 1.1rem; border-radius: 22px; background: #f8fafc; border: 1px solid var(--line);
}
.step-num {
  width: 42px; height: 42px; border-radius: 999px; background: var(--text); color: white; display: inline-flex; align-items: center; justify-content: center; font-weight: 800;
  flex-shrink: 0;
}
.quote { font-size: 1.04rem; color: #334155; }
.pricing-shell {
  padding: 2rem; background: var(--text); color: white; border-radius: 30px; box-shadow: var(--shadow);
}
.pricing-inner { display: grid; gap: 1.25rem; grid-template-columns: 1.15fr 0.85fr; align-items: center; }
.pricing-card .price { font-size: 3.25rem; font-weight: 800; letter-spacing: -0.05em; }
.page-header { padding: 3.75rem 0 2rem; }
.page-header p { max-width: 760px; color: var(--muted); font-size: 1.08rem; }
.list-clean { padding-left: 1.1rem; }
.list-clean li { margin-bottom: 0.55rem; }
.footer {
  padding: 2.5rem 0; border-top: 1px solid var(--line); background: white; margin-top: 2rem;
}
.footer-grid { grid-template-columns: 1.2fr 0.8fr 0.8fr; }
.footer small, .footer p, .footer a { color: var(--muted); }
.contact-form {
  display: grid; gap: 1rem;
}
label { font-weight: 700; font-size: 0.95rem; }
input, textarea, select {
  width: 100%; padding: 0.95rem 1rem; border-radius: 16px; border: 1px solid var(--line); font: inherit; background: white;
}
textarea { min-height: 160px; resize: vertical; }
.notice {
  border-left: 4px solid var(--accent-2); padding: 1rem 1.1rem; background: #eff6ff; color: #1e3a8a; border-radius: 18px;
}
.banner {
  padding: 1.25rem 1.4rem; border-radius: 26px; background: linear-gradient(135deg, #0f172a, #1e293b); color: white;
}
.table {
  width: 100%; border-collapse: collapse; background: white; border-radius: 20px; overflow: hidden; border: 1px solid var(--line);
}
.table th, .table td { padding: 0.9rem 1rem; border-bottom: 1px solid var(--line); text-align: left; }
.table th { background: #f8fafc; }
.hidden-lang { display: none !important; }
@media (max-width: 1180px) {
  .theme-switch { display: none; }
  .brand-sub { display: none; }
}
@media (max-width: 960px) {
  .hero-grid, .pricing-inner, .grid-3, .grid-2, .offers-grid, .team-grid, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
}
@media (max-width: 640px) {
  .hero { padding-top: 3.5rem; }
  .topbar-inner { min-height: 66px; }
  .actions { gap: 0.5rem; }
  .lang-switch button { padding: 0.45rem 0.65rem; }
}


/* ==============================
   Oyigha visual theme layer
   ============================== */
body[data-theme="oyigha-orange"] {
  --accent: var(--oyigha-orange);
  --accent-2: var(--oyigha-blue);
  --surface-soft: #fff5ea;
  --line: #f2d8bd;
  --hero-gradient: linear-gradient(135deg, #e67e22, #a75a05 58%, #1a5fa8);
  --soft-gradient: radial-gradient(circle at 86% 12%, rgba(26,95,168,0.16), transparent 32%), radial-gradient(circle at 15% 25%, rgba(230,126,34,0.22), transparent 36%);
  --shadow: 0 20px 55px rgba(230,126,34,0.16);
}
body[data-theme="oyigha-green"] {
  --accent: var(--oyigha-green);
  --accent-2: var(--oyigha-blue);
  --surface-soft: #eefbf5;
  --line: #ccebdd;
  --hero-gradient: linear-gradient(135deg, #28ae7b, #208170 58%, #1a5fa8);
  --soft-gradient: radial-gradient(circle at 86% 12%, rgba(31,171,84,0.16), transparent 32%), radial-gradient(circle at 15% 25%, rgba(26,95,168,0.18), transparent 36%);
  --shadow: 0 20px 55px rgba(40,174,123,0.15);
}

body {
  background: var(--soft-gradient), var(--bg);
}
.topbar {
  background: rgba(255,255,255,0.86);
  box-shadow: 0 8px 28px rgba(16,32,51,0.05);
}
.brand-title {
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: .55rem;
}
.brand-title::before {
  content: "O";
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--hero-gradient);
  color: white;
  font-weight: 900;
  box-shadow: 0 12px 26px rgba(26,95,168,.25);
}
.nav a:hover, .nav a.active { color: var(--accent); }
.lang-switch button.active,
.theme-switch button.active,
.btn-primary,
.step-num {
  background: var(--accent);
  color: #fff;
}
.btn-primary { border-color: var(--accent); }
.btn-secondary:hover { background: var(--surface-soft); }
.hero {
  background: var(--soft-gradient), linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
}
.hero h1 span,
.page-header h1 span,
.section-title span {
  text-wrap: balance;
}
.badge {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
  background: var(--surface-soft);
  color: var(--accent);
}
.card, .stat, .pricing-card, .faq-item, .team-card, .contact-card, .legal-card {
  border-color: color-mix(in srgb, var(--accent) 16%, var(--line));
}
.panel-dark,
.pricing-shell,
.banner {
  background: var(--hero-gradient);
}
.section-kicker { color: var(--accent); }
.feature-card h3,
.offer-card h3,
.team-card h3,
.stat strong,
.pricing-card .price { color: var(--accent); }
.notice {
  border-left-color: var(--accent-2);
  background: color-mix(in srgb, var(--accent-2) 10%, white);
  color: #5a320d;
}
.table th { background: var(--surface-soft); color: var(--accent); }
input:focus, textarea:focus, select:focus {
  outline: 3px solid color-mix(in srgb, var(--accent) 22%, transparent);
  border-color: var(--accent);
}
.theme-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface);
}
.theme-switch button {
  border: 0;
  background: transparent;
  padding: 0.35rem 0.55rem;
  font-weight: 800;
  cursor: pointer;
  color: var(--muted);
  font-size: 0.78rem;
}
.theme-switch button:hover { background: var(--surface-soft); color: var(--accent); }
.theme-dot {
  display: inline-block;
  width: .72rem;
  height: .72rem;
  border-radius: 999px;
  margin-right: .25rem;
  vertical-align: -1px;
}
.theme-dot.blue { background: #1a5fa8; }
.theme-dot.orange { background: #e67e22; }
.theme-dot.green { background: #28ae7b; }
@media (max-width: 760px) {
  .theme-switch { display: none; }
  .brand-sub { display: none; }
}

/* ==============================
   Real Oyigha logo/image assets
   ============================== */
.brand-title::before { content: none !important; display: none !important; }
.brand-title { min-width: 140px; }
.brand-logo {
  width: 128px;
  height: auto;
  display: block;
}
.brand-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.footer .brand-logo { width: 150px; }
.hero-brand-visual {
  margin-bottom: 1rem;
  border-radius: 28px;
  overflow: hidden;
  background: var(--accent);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}
.hero-brand-visual img {
  width: 100%;
  max-height: 360px;
  object-fit: cover;
}
@media (max-width: 640px) {
  .brand-logo { width: 104px; }
  .brand-title { min-width: 110px; }
  .theme-switch { display: none; }
}

.discount-note {
  border: 1px solid rgba(56,189,248,0.35);
  background: rgba(56,189,248,0.10);
  color: var(--text);
  border-radius: 16px;
  padding: 0.75rem 0.9rem;
  font-weight: 700;
}

/* ==============================
   Hero: image-first on mobile
   ============================== */
@media (max-width: 768px) {
  .hero-grid > div:first-child { order: 2; }
  .hero-grid > .dashboard { order: 1; }
}

/* ==============================
   Mobile hamburger menu (pure CSS checkbox toggle)
   ============================== */
.nav-toggle-input { display: none; }

.hamburger {
  display: none;
  cursor: pointer;
  font-size: 1.45rem;
  line-height: 1;
  padding: 0.25rem 0.4rem;
  color: var(--text);
  user-select: none;
  order: 1;
  flex-shrink: 0;
}

.mobile-nav-dropdown {
  display: none;
  flex-direction: column;
  background: white;
  border-top: 1px solid var(--line);
  box-shadow: 0 8px 20px rgba(16,32,51,0.08);
  position: sticky;
  top: 64px;
  z-index: 29;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  padding: 0.4rem 0;
}

.mobile-nav-links a {
  display: block;
  padding: 0.8rem 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--line);
}

.mobile-nav-links a:last-child { border-bottom: none; }
.mobile-nav-links a:hover { color: var(--accent); }

.mobile-nav-demo-btn {
  display: flex !important;
  justify-content: center;
  margin-top: 0.75rem;
  padding: 0.75rem 1rem !important;
  border-bottom: none !important;
  color: white !important;
}

.mobile-nav-app-link {
  color: var(--oyigha-blue) !important;
  font-weight: 700 !important;
}

@media (max-width: 960px) {
  .hamburger { display: inline-flex; align-items: center; }
  .actions { flex-wrap: nowrap; align-items: center; }
  .actions .btn-primary { display: none; }
}

#nav-toggle:checked ~ .mobile-nav-dropdown { display: flex; }