/* SenderWolf landing page — self-contained (no CDN, no web fonts). Palette
   mirrors the admin panel's :root variables so the two feel like one product. */
:root {
  --bg: #0b0a10;
  --bg-soft: #0f0e15;
  --panel: #131218;
  --border: #25222e;
  --accent: #c58ad8;
  --accent-dark: #6a1b9a;
  --accent-glow: rgba(197, 138, 216, 0.22);
  --ring: #e1b5ef;
  --text: #f3eef8;
  --muted: #a39bb2;
  --green: #4cd693;
  --radius: 14px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text); line-height: 1.6;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}
img, svg { max-width: 100%; }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 3px; border-radius: 6px; }
.faq summary:focus-visible { outline-offset: -3px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--accent-dark); color: #fff; padding: 8px 14px; z-index: 100; }
.skip-link:focus { left: 8px; top: 8px; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { padding: 84px 0; }
section[id] { scroll-margin-top: 64px; }
.eyebrow { color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: 1.6px; text-transform: uppercase; margin: 0 0 12px; }
h1, h2, h3 { line-height: 1.15; margin: 0; }
h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 14px; }
.lede { color: var(--muted); font-size: 18px; max-width: 640px; margin: 0 0 40px; }
.center { text-align: center; }
.center .lede { margin-left: auto; margin-right: auto; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; background: rgba(13, 13, 13, 0.82);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; font-size: 18px; }
.logo:hover { text-decoration: none; }
.logo svg { width: 28px; height: 28px; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { color: var(--muted); font-size: 14px; }
.nav a:hover { color: var(--text); text-decoration: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 10px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer; transition: transform .12s, background .12s, border-color .12s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent-dark); color: #fff; box-shadow: 0 8px 28px var(--accent-glow); }
.btn-primary:hover { background: #7b1fa2; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--accent); }
.btn-sm { padding: 8px 16px; font-size: 13px; }

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 72px; position: relative; overflow: hidden;
  background:
    radial-gradient(900px 420px at 78% -10%, var(--accent-glow), transparent 70%),
    radial-gradient(700px 380px at 10% 110%, rgba(106, 27, 154, 0.18), transparent 70%);
}
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(36px, 5.4vw, 60px); letter-spacing: -1px; margin-bottom: 20px; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, #ce93d8, #ba68c8 45%, #8e24aa); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lede { margin-bottom: 30px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; color: var(--muted); font-size: 13px; }
.hero-art { background: var(--panel); border: 1px solid var(--border); border-radius: 18px; padding: 22px; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5); }
.hero-art svg { display: block; width: 100%; height: auto; }

/* ---------- Features ---------- */
.features { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent-dark); transform: translateY(-2px); }
.card .icon {
  width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; margin-bottom: 16px;
  background: rgba(186, 104, 200, 0.12); color: var(--accent);
}
.card .icon svg { width: 22px; height: 22px; }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.step { position: relative; padding: 26px 26px 26px 26px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--accent-dark); color: #fff; font-weight: 700; margin-bottom: 14px;
}
.step h3 { font-size: 18px; margin-bottom: 6px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- Split highlight blocks ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split.reverse .split-text { order: 2; }
.checklist { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.checklist li { display: flex; gap: 12px; color: var(--text); font-size: 15px; }
.checklist li::before {
  content: ""; flex: 0 0 20px; height: 20px; margin-top: 2px; border-radius: 50%;
  background: rgba(76, 175, 80, 0.15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-6.5' fill='none' stroke='%234caf50' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 20px no-repeat;
}
.visual { background: var(--panel); border: 1px solid var(--border); border-radius: 18px; padding: 22px; }
.visual svg { display: block; width: 100%; height: auto; }

/* ---------- FAQ ---------- */
.faq { max-width: 780px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 0 22px; }
.faq details[open] { border-color: var(--accent-dark); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 0; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 18px; color: var(--muted); font-size: 15px; }

/* ---------- CTA band + footer ---------- */
.cta-band {
  text-align: center; border: 1px solid var(--border); border-radius: 22px; padding: 64px 24px;
  background: radial-gradient(600px 240px at 50% 0%, var(--accent-glow), transparent 70%), var(--panel);
}
.cta-band h2 { margin-bottom: 12px; }
.cta-band .hero-cta { justify-content: center; margin-top: 8px; }
.site-footer { border-top: 1px solid var(--border); padding: 28px 0; color: var(--muted); font-size: 13px; }
.site-footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  section { padding: 60px 0; }
  .hero { padding: 64px 0 48px; }
  .hero .wrap, .split { grid-template-columns: 1fr; gap: 36px; }
  .split.reverse .split-text { order: 0; }
  .grid-3, .steps { grid-template-columns: 1fr; }
  .nav a.hide-sm { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .card { transition: none; }
  .btn:hover, .card:hover { transform: none; }
}