* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f7fb;
  color: #111827;
}

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

.container {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background:#fefefe;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e7eb;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  gap: 12px;
}

.logo-img {
  height: 32px;
  width: auto;
  display: block;
}

/* Language switcher */

.language-switcher {
  position: relative;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  background: #ffffff;
  font-size: 13px;
  cursor: pointer;
}

.lang-toggle-arrow {
  font-size: 10px;
}

.lang-dropdown {
  position: absolute;
  right: 0;
  margin-top: 6px;
  padding: 6px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
  display: none;
}

.language-switcher.open .lang-dropdown {
  display: block;
}

.lang-btn {
  display: block;
  width: 100%;
  padding: 6px 8px;
  border-radius: 8px;
  border: none;
  background: transparent;
  text-align: left;
  font-size: 13px;
  cursor: pointer;
}

.lang-btn:hover {
  background: #f3f4f6;
}

.lang-btn.active {
  background: #e0edff;
  font-weight: 500;
}

/* Hero */

.hero {
  padding: 48px 0 32px;
}

.hero-inner {
  display: flex;
  justify-content: center;
}

.hero-card {
  background: #ffffff;
  border-radius: 24px;
  padding: 26px 22px 24px;
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.12);
  max-width: 640px;
}

.hero-title {
  font-size: 24px;
  margin-bottom: 12px;
}

.hero-line {
  font-size: 14px;
  color: #4b5563;
  margin-bottom: 6px;
}

.hero-note {
  font-size: 12px;
  color: #9ca3af;
  margin-top: 10px;
}

/* Button */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 26px;
  margin-top: 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, #1da1f2 0%, #039be5 100%);
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(3, 155, 229, 0.45);
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(3, 155, 229, 0.55);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 8px 20px rgba(3, 155, 229, 0.4);
}

.tg-icon {
  width: 18px;
  height: 18px;
}

/* Footer */

.footer {
  border-top: 1px solid #e5e7eb;
  padding: 10px 0 18px;
  background: #f5f7fb;
}

.footer-inner {
  display: flex;
  justify-content: center;
}

.footer-text {
  font-size: 12px;
  color: #9ca3af;
}

/* Responsive */

@media (max-width: 640px) {
  .hero {
    padding-top: 32px;
  }

  .hero-card {
    padding: 22px 18px 20px;
  }

  .hero-title {
    font-size: 22px;
  }
}


.language-nav {
  display: flex;
  gap: 8px;
  font-size: 13px;
}

.lang-link {
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: #6b7280;
  background: transparent;
}

.lang-link:hover {
  border-color: #e5e7eb;
  background: #ffffff;
  color: #111827;
}

.lang-link.current {
  border-color: #2563eb;
  background: #2563eb;
  color: #ffffff;
}


.hero-intro {
  font-size: 14px;
  color: #4b5563;
  margin-bottom: 14px;
}

.hero-steps {
  list-style: none;
  margin: 0 0 18px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hero-step {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.hero-step-number {
  font-weight: 600;
  color: #2563eb;
  margin-top: 2px;
}

.hero-step-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-step-title {
  font-size: 14px;
  font-weight: 600;
  color: #111827;
}

.hero-step-text {
  font-size: 13px;
  color: #4b5563;
}

/* mobile: a bit more spacing */
@media (max-width: 640px) {
  .hero-steps {
    gap: 10px;
  }
}