/* VaderVPN – minimal, fancy vanilla CSS on dark theme */
:root {
  --bg:#050507;--fg:#e5e7eb;--muted:#94a3b8;--primary:#145e61;--accent:#0b161c;--card:#0b1220;--ring:rgba(255,255,255,.08);
  --radius: 14px;
  --maxw: 1200px;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, "Helvetica Neue", Arial, "Apple Color Emoji", "Segoe UI Emoji"; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 24px; }
.nav { position: sticky; top: 0; backdrop-filter: blur(8px); background: linear-gradient(0deg, rgba(0,0,0,0) 0%, rgba(0,0,0,.35) 100%); border-bottom: 1px solid var(--ring); z-index: 20; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 24px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .5px; }
.brand .logo { width: 36px; height: 24px; position: relative; }
.brand .logo::before, .brand .logo::after {
  content: ""; position: absolute; inset: 0; border-radius: 6px;
  border: 2px solid var(--primary);
  box-shadow: 0 0 14px var(--primary), inset 0 0 8px rgba(0,0,0,.6);
}
.brand .logo::after { transform: translateY(10px); width: 60%; left: 20%; opacity: .9; }
.nav a.btn { padding: 10px 16px; border: 1px solid var(--ring); border-radius: 999px; }
.nav .cta { background: var(--primary); color: black; border: none; box-shadow: 0 0 18px var(--primary); }
.nav .cta:hover { filter: brightness(1.1); }
.hero {
  position: relative; overflow: hidden; border-bottom: 1px solid var(--ring);
  background: radial-gradient(1200px 600px at 50% -200px, var(--accent), transparent 60%);
}
.hero-inner { display: grid; gap: 28px; grid-template-columns: 1.2fr 1fr; align-items: center; padding: 64px 24px 80px; }
.hero.hero-pay { background: radial-gradient(1400px 700px at 60% -400px, rgba(20,94,97,.35), transparent 60%); }
.hero h1 { font-size: clamp(28px, 6vw, 56px); line-height: 1.05; margin: 0; }
.hero p.sub { color: var(--muted); margin: 8px 0 0; max-width: 60ch; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 18px; border-radius: 14px; border: 1px solid var(--ring); background: #0d1625; text-decoration: none; transition: transform .05s ease; }
.btn.disabled,
button.btn:disabled { opacity: .4; cursor: not-allowed; pointer-events: none; box-shadow: none; }
.btn.disabled { background: rgba(255,255,255,.05); color: var(--muted); border-color: rgba(255,255,255,.08); }
button.btn { background: #0d1625; color: var(--fg); border: 1px solid var(--ring); font: inherit; }
.btn:hover { transform: translateY(-1px); }
.btn.primary { background: var(--primary); color: black; box-shadow: 0 0 24px var(--primary); border-color: transparent; }
.btn.primary.disabled,
button.btn.primary:disabled { background: rgba(255,255,255,.05); color: var(--muted); border-color: rgba(255,255,255,.08); box-shadow: none; }
.btn.highlight { border-color: var(--primary); color: var(--fg); background: linear-gradient(120deg, rgba(20,94,97,.2), rgba(20,94,97,.05)); box-shadow: 0 0 18px rgba(20,94,97,.35); }
.card { background: var(--card); border: 1px solid var(--ring); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero-visual { aspect-ratio: 16/10; width: 100%; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--ring); }
.hero-visual-pay { display: flex; align-items: center; justify-content: center; padding: 28px; border-style: dashed; background: rgba(10,19,33,.65); }
.hero-visual-content { display: flex; flex-direction: column; gap: 12px; }
.hero-visual-content h2 { margin: 0; font-size: clamp(20px, 3vw, 28px); }
.hero-visual-content ol { margin: 0; padding-left: 20px; color: var(--muted); display: grid; gap: 6px; }
.hero-visual img{ width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-visual-ui { background-color: transparent; border: none; box-shadow: none; display: flex; align-items: center; justify-content: center; }
.hero-visual-ui img { width: 75%; height: auto; object-fit: contain; border-radius: 18px; box-shadow: 0 25px 70px rgba(0,0,0,.55); background: none; margin: 0 auto; display: block; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 980px) { .hero-inner { grid-template-columns: 1fr; } .grid { grid-template-columns: 1fr; } }
.section { padding: 68px 24px; }
.section h2 { font-size: clamp(22px, 4vw, 36px); margin: 0 0 8px; }
.section p.lead { color: var(--muted); margin: 0 0 24px; }
.feature { padding: 18px; }
.feature h3 { margin: 10px 0 6px; }
.pricing { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.price-card { padding: 24px; display: flex; flex-direction: column; gap: 8px; }
.price { font-size: 36px; font-weight: 800; }
.badge { font-size: 12px; padding: 4px 8px; border-radius: 999px; border: 1px solid var(--ring); background: #0d1625; width: fit-content; }
.badge.upcoming { letter-spacing: .08em; text-transform: uppercase; opacity: .75; }
.faq { max-width: 900px; margin: 0 auto; }
.faq details { border: 1px solid var(--ring); border-radius: 12px; padding: 14px 16px; margin: 12px 0; background: #0a1321; }
.faq summary { cursor: pointer; font-weight: 600; }
.footer { padding: 32px 24px; border-top: 1px solid var(--ring); color: var(--muted); }
.kbd { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: .95em; background: #0a1321; border: 1px solid var(--ring); padding: 2px 6px; border-radius: 6px; }
.payment-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.payment-card { padding: 26px; display: flex; flex-direction: column; gap: 16px; }
.link-card { text-decoration: none; color: inherit; transition: transform .08s ease, box-shadow .12s ease; }
.link-card:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(0,0,0,.35); }
.address-block { display: flex; flex-direction: column; gap: 6px; background: rgba(5,9,16,.65); border: 1px solid var(--ring); border-radius: 10px; padding: 14px; }
.address-block .label { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.payment-form { display: flex; flex-direction: column; gap: 14px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: .9rem; color: var(--muted); }
.form-group input,
.form-group textarea { background: rgba(5,7,11,.85); border: 1px solid var(--ring); border-radius: 10px; padding: 12px; color: var(--fg); font: inherit; resize: vertical; }
.form-group input:focus,
.form-group textarea:focus { outline: 2px solid rgba(20,94,97,.6); border-color: transparent; }
.note { color: var(--muted); margin: 0; font-size: .9rem; }
.status { font-style: italic; }
.status.success { color: #34d399; }
.status.error { color: #f87171; }
.callout-card .card { padding: 32px; }
.callout { display: flex; flex-direction: column; gap: 12px; }
.downloads-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.download-card { justify-content: space-between; min-height: 90px; font-weight: 600; }
.download-card span { display: block; font-size: .85rem; color: var(--muted); font-weight: 400; }
.table-compare-wrapper { padding: 0; overflow-x: auto; }
.responsive-table { width: 100%; border-collapse: collapse; font-size: .95rem; color: var(--fg); }
.responsive-table th,
.responsive-table td { border: 1px solid rgba(255,255,255,.12); padding: 12px; text-align: center; }
.responsive-table th { background: #000; color: #fff; letter-spacing: .05em; text-transform: uppercase; }
.responsive-table tr:nth-child(even) td { background: rgba(255,255,255,.03); }
@media (max-width: 700px) {
  .responsive-table thead { display: none; }
  .responsive-table tr { display: block; margin-bottom: 15px; border: 1px solid rgba(255,255,255,.12); }
  .responsive-table td { display: flex; justify-content: space-between; text-align: left; border: none; border-bottom: 1px solid rgba(255,255,255,.08); }
  .responsive-table td:last-child { border-bottom: none; }
  .responsive-table td::before { content: attr(data-label); font-weight: 600; text-transform: uppercase; color: var(--muted); padding-right: 12px; }
}

.payment-calculator { padding: 28px; display: grid; gap: 18px; }
.payment-calculator .calc-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.payment-calculator .calc-row { display: grid; gap: 10px; }
.payment-calculator .calc-row label { font-size: .9rem; color: var(--muted); }
.payment-calculator .calc-row input,
.payment-calculator .calc-row select { background: rgba(5,7,11,.85); border: 1px solid var(--ring); border-radius: 10px; padding: 12px; color: var(--fg); font: inherit; }
.payment-calculator .calc-output { display: grid; gap: 8px; padding: 16px; border-radius: 12px; border: 1px solid var(--ring); background: rgba(5,9,16,.65); }
.payment-calculator .calc-output strong { font-size: 1.2rem; }
.payment-calculator .calc-hint { color: var(--muted); font-size: .9rem; }

.payment-calculator .calc-breakdown { color: var(--muted); font-size: .9rem; }