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

:root {
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --bg-code: #f1f5f9;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-dim: #64748b;
  --accent: #2563eb;
  --accent-light: #3b82f6;
  --accent-bg: #eff6ff;
  --green: #059669;
  --green-bg: #ecfdf5;
  --yellow: #d97706;
  --yellow-bg: #fffbeb;
  --font: 'IBM Plex Mono', 'Fira Code', 'Consolas', monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 15px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code { font-family: var(--font); font-size: 13px; background: var(--bg-code); padding: 2px 6px; border-radius: 4px; }

.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }

/* Header */
header {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  z-index: 100;
}
header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  font-family: var(--font);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 4px;
}
.logo span { color: var(--text-dim); font-weight: 400; }

nav { display: flex; align-items: center; gap: 20px; }
nav a {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  transition: color .2s;
}
nav a:hover { color: var(--accent); text-decoration: none; }

.lang-switcher {
  display: flex;
  gap: 2px;
  background: var(--bg-code);
  border-radius: 8px;
  padding: 2px;
}
.lang-btn {
  display: block;
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all .2s;
  text-decoration: none;
}
.lang-btn:hover { color: var(--accent); text-decoration: none; }
.lang-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.3);
}

/* Hero */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  background: linear-gradient(180deg, var(--accent-bg) 0%, var(--bg) 100%);
}
.hero h1 {
  font-family: var(--sans);
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}
.hero h1 .highlight { color: var(--accent); }
.hero p {
  font-size: 17px;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto 32px;
}
.hero-cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 32px;
  border-radius: 10px;
  transition: all .2s;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}
.hero-cta:hover { background: var(--accent-light); text-decoration: none; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3); }

/* Terminal */
.terminal {
  background: #1e293b;
  border-radius: 12px;
  padding: 20px 24px;
  margin: 36px auto;
  max-width: 660px;
  text-align: left;
  overflow-x: auto;
  box-shadow: 0 4px 24px rgba(0,0,0,0.1);
}
.terminal .prompt { color: #4ade80; }
.terminal .comment { color: #94a3b8; }
.terminal .value { color: #fbbf24; }
.terminal code { font-size: 13px; line-height: 1.9; color: #e2e8f0; background: none; padding: 0; }

/* Sections */
section { padding: 64px 0; }
section + section { border-top: 1px solid var(--border); }

h2 {
  font-family: var(--sans);
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 8px;
}
h2 .accent { color: var(--accent); }

/* Steps */
.steps { display: grid; gap: 16px; margin-top: 28px; }
.step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: box-shadow .2s;
}
.step:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.05); }
.step-num {
  background: var(--accent);
  color: #fff;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
  font-family: var(--font);
}
.step h3 { font-size: 16px; margin-bottom: 4px; font-weight: 600; }
.step p { color: var(--text-dim); font-size: 14px; }

/* Benefits */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.benefit {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: box-shadow .2s;
}
.benefit:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.05); }
.benefit-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-bg);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  font-family: var(--font);
  margin-bottom: 14px;
}
.benefit h3 { font-size: 15px; margin-bottom: 6px; font-weight: 600; }
.benefit p { color: var(--text-dim); font-size: 13px; line-height: 1.6; }

/* Security */
.security-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  margin-top: 24px;
}
.security-box h3 {
  color: var(--text);
  font-size: 16px;
  margin-bottom: 14px;
}
.security-box p {
  color: var(--text);
  font-size: 14px;
  margin-bottom: 10px;
  line-height: 1.7;
}
.security-box ul {
  list-style: none;
  padding-left: 0;
  margin: 12px 0;
}
.security-box ul li {
  color: var(--text);
  font-size: 14px;
  padding: 6px 0 6px 20px;
  position: relative;
  line-height: 1.6;
}
.security-box ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}
.security-box .sec-footer {
  color: var(--text-dim);
  font-size: 13px;
  margin-top: 4px;
  margin-bottom: 0;
}
.security-box .sec-tip {
  margin-top: 16px;
  padding: 16px 20px;
  background: rgba(5, 150, 105, 0.06);
  border: 1px solid rgba(5, 150, 105, 0.2);
  border-radius: 8px;
}
.security-box .sec-tip h4 {
  color: var(--green);
  font-size: 14px;
  margin-bottom: 8px;
}
.security-box .sec-tip p {
  font-size: 13px;
  margin-bottom: 8px;
}
.security-box .sec-tip code.block {
  display: block;
  background: #1e293b;
  color: #e2e8f0;
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 12px;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
  margin: 8px 0;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 32px;
  align-items: start;
}
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  text-align: center;
  transition: box-shadow .2s;
}
.pricing-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
.pricing-card.featured {
  border: 2px solid var(--accent);
  box-shadow: 0 4px 24px rgba(37, 99, 235, 0.08);
  position: relative;
}
.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
}
.pricing-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.pricing-card .price-sub {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.price {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--sans);
}
.price-free {
  font-size: 48px;
  font-weight: 800;
  color: var(--green);
  font-family: var(--sans);
}
.price-period {
  color: var(--text-dim);
  font-size: 14px;
  margin-top: -2px;
}
.price-features {
  list-style: none;
  margin: 24px 0;
  text-align: left;
}
.price-features li {
  padding: 9px 0;
  font-size: 14px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.price-features li::before {
  content: "";
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--green-bg);
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M6 10l3 3 5-5' stroke='%23059669' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}
.price-features li.disabled {
  color: var(--text-dim);
}
.price-features li.disabled::before {
  background: var(--bg-code);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M7 10h6' stroke='%2394a3b8' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}
.btn-primary {
  display: block;
  padding: 14px 24px;
  border-radius: 10px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: all .2s;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}
.btn-primary:hover { background: var(--accent-light); text-decoration: none; transform: translateY(-1px); }
.btn-outline {
  display: block;
  padding: 14px 24px;
  border-radius: 10px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  border: 2px solid var(--border);
  cursor: pointer;
  text-align: center;
  transition: all .2s;
  background: var(--bg-card);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.payment-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
}
.btn-stripe {
  display: block;
  padding: 14px 24px;
  border-radius: 10px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: all .2s;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}
.btn-stripe:hover { background: var(--accent-light); text-decoration: none; transform: translateY(-1px); }
.btn-paypal {
  display: block;
  padding: 14px 24px;
  border-radius: 10px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: all .2s;
  background: #ffc439;
  color: #253b80;
  box-shadow: 0 2px 8px rgba(255, 196, 57, 0.2);
}
.btn-paypal:hover { opacity: 0.9; text-decoration: none; transform: translateY(-1px); }
.guarantee {
  margin-top: 16px;
  font-size: 13px;
  color: var(--green);
  font-weight: 500;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  background: #fff;
}
footer h2 { font-size: 20px; margin-bottom: 8px; }
footer p { color: var(--text-dim); font-size: 14px; line-height: 1.7; }
footer a { color: var(--accent); }

/* Impressum */
.impressum {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.impressum h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text);
}
.impressum-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.impressum-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}
.impressum-card h4 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 10px;
}
.impressum-card p {
  font-size: 13px;
  color: var(--text);
  line-height: 1.8;
  margin: 0;
}
.impressum-card p span {
  color: var(--text-dim);
}
.impressum-ids {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 16px;
}
.impressum-ids .id-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
}
.impressum-ids .id-label {
  color: var(--text-dim);
}
.impressum-ids .id-value {
  color: var(--text);
  font-family: var(--font);
  font-size: 12px;
}
.impressum-ecg {
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--accent-bg);
  border-radius: 10px;
  font-size: 13px;
  color: var(--text-dim);
}
.impressum-ecg a {
  font-weight: 600;
}

.footer-bottom {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
}

@media (max-width: 640px) {
  .impressum-ids { grid-template-columns: 1fr; }
}

/* Mobile */
@media (max-width: 640px) {
  header .container { flex-wrap: wrap; }
  nav { width: 100%; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
  .step { flex-direction: column; }
  .hero { padding: 48px 0 36px; }
  .pricing-card { padding: 24px; }
  .security-box { padding: 20px; }
  .pricing-grid { grid-template-columns: 1fr; }
}