/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #1C1C1E;
  background: #FFFFFF;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }

/* ===== NAV ===== */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 40px;
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 10;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo {
  width: 36px; height: 36px;
  background: #000;
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
}
.nav-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
.lang-switcher select {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #E5E5EA;
  background: #F9F9FB;
  font-size: 14px;
  font-weight: 600;
  color: #1C1C1E;
  cursor: pointer;
  outline: none;
  font-family: inherit;
}
.lang-switcher select:focus {
  border-color: #007AFF;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
  background: linear-gradient(180deg, #F2F2F7 0%, #FFFFFF 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,122,255,0.08) 0%, transparent 70%);
  top: -100px; right: -100px;
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,149,0,0.06) 0%, transparent 70%);
  bottom: -50px; left: -50px;
  border-radius: 50%;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  color: #000;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 18px;
  color: #6E6E73;
  max-width: 520px;
  margin: 0 auto 32px;
  line-height: 1.6;
}
.btn-primary {
  display: inline-block;
  background: #000;
  color: #fff;
  padding: 16px 40px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 17px;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  background: #333;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 24px;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}
.features h2 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin-bottom: 56px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.feature-card {
  background: #F9F9FB;
  border-radius: 20px;
  padding: 36px 24px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}
.feature-icon {
  font-size: 40px;
  margin-bottom: 16px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 15px;
  color: #6E6E73;
  line-height: 1.5;
}

/* ===== PLANS ===== */
.plans {
  padding: 100px 24px;
  background: #F2F2F7;
  text-align: center;
}
.plans h2 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.8px;
}
.plans-sub {
  color: #6E6E73;
  font-size: 17px;
  margin-top: 8px;
  margin-bottom: 48px;
}
.plans-grid {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  max-width: 800px;
  margin: 0 auto;
}
.plan-card {
  background: #fff;
  border-radius: 24px;
  padding: 40px 32px;
  width: 340px;
  text-align: center;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 2px solid transparent;
}
.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 50px rgba(0,0,0,0.08);
}
.plan-popular {
  border-color: #007AFF;
  box-shadow: 0 12px 40px rgba(0,122,255,0.12);
}
.plan-badge {
  display: inline-block;
  background: #F2F2F7;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  color: #6E6E73;
  margin-bottom: 20px;
}
.popular-badge {
  background: #007AFF;
  color: #fff;
}
.plan-price {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -1px;
}
.plan-price span {
  font-size: 16px;
  font-weight: 500;
  color: #8E8E93;
}
.plan-save {
  display: inline-block;
  background: #E8F5E9;
  color: #2E7D32;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 8px;
  margin-top: 8px;
}
.plan-features {
  list-style: none;
  margin: 28px 0;
  text-align: left;
}
.plan-features li {
  padding: 8px 0;
  font-size: 15px;
  color: #3C3C43;
}
.btn-plan {
  width: 100%;
  padding: 14px;
  border-radius: 14px;
  border: 2px solid #E5E5EA;
  background: transparent;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s;
  color: #1C1C1E;
}
.btn-plan:hover {
  background: #F2F2F7;
}
.btn-popular {
  background: #007AFF;
  color: #fff;
  border-color: #007AFF;
}
.btn-popular:hover {
  background: #0056B3;
  border-color: #0056B3;
}

/* ===== FORM ===== */
.form-section {
  padding: 100px 24px;
  max-width: 680px;
  margin: 0 auto;
}
.form-section h2 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.8px;
  text-align: center;
}
.form-sub {
  text-align: center;
  color: #6E6E73;
  font-size: 17px;
  margin-top: 8px;
  margin-bottom: 40px;
}
.business-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.form-row {
  display: flex;
  gap: 16px;
}
.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: #3C3C43;
}
.form-group input,
.form-group textarea,
.form-group select {
  padding: 14px 18px;
  border: 1.5px solid #E5E5EA;
  border-radius: 12px;
  font-size: 16px;
  font-family: inherit;
  background: #F9F9FB;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  color: #1C1C1E;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: #007AFF;
  box-shadow: 0 0 0 3px rgba(0,122,255,0.1);
  background: #fff;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #C7C7CC;
}

/* Payment Info */
.payment-info {
  background: #F9F9FB;
  border-radius: 16px;
  padding: 24px;
  border: 1px solid #E5E5EA;
}
.payment-info h3 {
  font-size: 18px;
  margin-bottom: 10px;
}
.payment-info p {
  font-size: 14px;
  color: #6E6E73;
  line-height: 1.5;
}
.iban-box {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  padding: 12px 16px;
  border-radius: 12px;
  margin: 12px 0;
  border: 1px solid #E5E5EA;
  flex-wrap: wrap;
}
.iban-label {
  font-size: 12px;
  font-weight: 700;
  color: #8E8E93;
  background: #F2F2F7;
  padding: 4px 8px;
  border-radius: 6px;
}
.iban-number {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
  flex: 1;
}
.btn-copy {
  background: #007AFF;
  color: #fff;
  border: none;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-copy:hover { background: #0056B3; }
.payment-note {
  margin-top: 8px;
  font-size: 13px !important;
}

/* Submit */
.btn-submit {
  width: 100%;
  padding: 18px;
  border-radius: 14px;
  border: none;
  background: #000;
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 8px;
}
.btn-submit:hover {
  background: #333;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}
.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.loader {
  width: 20px; height: 20px;
  border: 2.5px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Success */
.success-message {
  text-align: center;
  padding: 60px 24px;
}
.success-icon {
  font-size: 64px;
  margin-bottom: 20px;
}
.success-message h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}
.success-message p {
  font-size: 17px;
  color: #6E6E73;
}

/* ===== FOOTER ===== */
.footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid #E5E5EA;
  color: #8E8E93;
  font-size: 14px;
}
.footer-links { margin-top: 8px; }
.footer-links a {
  color: #007AFF;
  font-weight: 500;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .nav { padding: 16px 20px; }
  .hero { padding: 100px 20px 60px; }
  .hero h1 { font-size: 32px; }
  .form-row { flex-direction: column; gap: 20px; }
  .plans-grid { flex-direction: column; align-items: center; }
  .plan-card { width: 100%; max-width: 380px; }
  .iban-box { flex-direction: column; text-align: center; }
}