/* SimpliDevice marketing site — one stylesheet, no build step. */
:root {
  --sky: #0284c7;
  --sky-deep: #0369a1;
  --sky-soft: #e0f2fe;
  --sky-glow: rgba(2, 132, 199, 0.35);
  --ink: #0f172a;
  --ink-2: #334155;
  --ink-3: #64748b;
  --ink-4: #94a3b8;
  --line: #e2e8f0;
  --paper: #ffffff;
  --paper-2: #f8fafc;
  --night: #0b1220;
  --night-2: #111a2e;
  --ok: #16a34a;
  --radius: 14px;
  --font-display: "Sora", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--font-body); font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--sky-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -0.02em; line-height: 1.15; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(38px, 5.6vw, 64px); font-weight: 700; }
h2 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 700; }
h3 { font-size: 19px; font-weight: 600; }
p { margin: 0; }
.muted { color: var(--ink-3); }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--sky); }
.wrap { width: min(1120px, 100% - 48px); margin-inline: auto; }
.lede { font-size: 19px; color: var(--ink-2); max-width: 60ch; }
.stack { display: flex; flex-direction: column; gap: 16px; }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 3px; border-radius: 6px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 20px; border-radius: 10px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap; font-family: inherit;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--sky); color: #fff; }
.btn-primary:hover { background: var(--sky-deep); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--paper-2); }
.btn-night { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.18); }
.btn-night:hover { background: rgba(255,255,255,0.14); }
.btn-lg { height: 52px; padding: 0 26px; font-size: 16px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,0.86); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-header.on-night { background: rgba(11,18,32,0.75); border-bottom-color: rgba(255,255,255,0.08); }
.nav { height: 68px; display: flex; align-items: center; gap: 28px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--ink); }
.on-night .logo { color: #fff; }
.logo svg { width: 30px; height: 30px; }
.nav-links { display: flex; gap: 26px; margin-left: 12px; }
.nav-links a { color: var(--ink-2); font-weight: 500; font-size: 15px; }
.on-night .nav-links a { color: rgba(255,255,255,0.78); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--sky); text-decoration: none; }
.nav-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.nav-cta .signin { font-weight: 500; color: var(--ink-2); padding: 0 8px; }
.on-night .nav-cta .signin { color: rgba(255,255,255,0.8); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 8px; width: 42px; height: 42px; color: inherit; cursor: pointer; }
.on-night .nav-toggle { border-color: rgba(255,255,255,0.2); color: #fff; }

/* Hero */
.hero { background: var(--night); color: #fff; position: relative; overflow: hidden; padding: 84px 0 0; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(60% 50% at 20% 0%, var(--sky-glow) 0, transparent 60%),
    radial-gradient(40% 40% at 90% 30%, rgba(2,132,199,0.18) 0, transparent 60%);
}
.hero .wrap { position: relative; }
.hero h1 { max-width: 15ch; }
.hero .lede { color: rgba(255,255,255,0.78); margin-top: 22px; }
.hero .eyebrow { color: #7dd3fc; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 34px; }
.hero-fine { margin-top: 18px; font-size: 14px; color: rgba(255,255,255,0.6); }
.hero-shot { margin-top: 64px; position: relative; }
.hero-shot .frame { margin-bottom: -140px; }
.hero + section { padding-top: 200px; }

/* Screenshot frame */
.frame {
  border-radius: 14px; overflow: hidden; background: #fff;
  border: 1px solid rgba(15,23,42,0.12);
  box-shadow: 0 30px 80px rgba(2, 8, 23, 0.35), 0 2px 6px rgba(2,8,23,0.15);
}
.frame-bar { height: 34px; background: #f1f5f9; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 6px; padding: 0 14px; }
.frame-bar i { width: 10px; height: 10px; border-radius: 50%; background: #cbd5e1; display: block; }
.frame-bar .url { margin-left: 10px; height: 20px; flex: 1; max-width: 360px; border-radius: 6px; background: #fff; border: 1px solid var(--line); font-size: 11px; color: var(--ink-4); display: flex; align-items: center; padding: 0 10px; font-family: ui-monospace, Menlo, monospace; }
.frame.light { box-shadow: 0 20px 50px rgba(15,23,42,0.12), 0 1px 3px rgba(15,23,42,0.08); }

/* Sections */
section { padding: 88px 0; }
section.alt { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 62ch; margin-bottom: 44px; }
.section-head h2 { margin-top: 10px; }
.section-head p { margin-top: 14px; }
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card h3 { margin-top: 14px; }
.card p { margin-top: 8px; color: var(--ink-2); font-size: 15px; }
.icon { width: 42px; height: 42px; border-radius: 10px; background: var(--sky-soft); color: var(--sky-deep); display: grid; place-items: center; }
.icon svg { width: 22px; height: 22px; }

/* Steps */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { position: relative; padding: 26px 26px 26px 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.step::before { counter-increment: step; content: counter(step); font-family: var(--font-display); font-weight: 700; font-size: 13px; color: var(--sky-deep); background: var(--sky-soft); width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; }
.step h3 { margin-top: 14px; }
.step p { margin-top: 8px; color: var(--ink-2); font-size: 15px; }

/* Split feature */
.split { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: center; }
.split.flip { grid-template-columns: 1.15fr 1fr; }
.split.flip > :first-child { order: 2; }
.checks { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; }
.checks li { display: flex; gap: 12px; align-items: flex-start; color: var(--ink-2); }
.checks li::before { content: ""; flex: none; width: 20px; height: 20px; margin-top: 2px; border-radius: 50%; background: var(--sky-soft); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230369a1' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5L20 7'/%3E%3C/svg%3E"); background-size: 12px; background-position: center; background-repeat: no-repeat; }

/* Status / honesty block */
.status { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.status .card ul { margin: 12px 0 0; padding-left: 0; list-style: none; display: grid; gap: 8px; color: var(--ink-2); font-size: 15px; }
.status .card li { display: flex; gap: 10px; align-items: baseline; }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; display: inline-block; transform: translateY(-1px); }
.dot.live { background: var(--ok); }
.dot.soon { background: var(--sky); }
.pill { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; border-radius: 99px; padding: 5px 12px; background: var(--sky-soft); color: var(--sky-deep); }
.pill.night { background: rgba(125,211,252,0.14); color: #bae6fd; }

/* Pricing */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.plan { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: var(--paper); display: flex; flex-direction: column; }
.plan.featured { border-color: var(--sky); box-shadow: 0 0 0 4px var(--sky-soft); position: relative; }
.plan .badge { position: absolute; top: -13px; left: 28px; background: var(--sky); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 99px; }
.plan .price { font-family: var(--font-display); font-size: 40px; font-weight: 700; margin-top: 18px; letter-spacing: -0.03em; }
.plan .price small { font-family: var(--font-body); font-size: 14px; font-weight: 500; color: var(--ink-3); letter-spacing: 0; margin-left: 4px; }
.plan .blurb { color: var(--ink-2); font-size: 15px; margin-top: 6px; min-height: 48px; }
.plan .checks { margin-top: 22px; flex: 1; }
.plan .btn { margin-top: 26px; width: 100%; }
table.matrix { width: 100%; border-collapse: collapse; font-size: 15px; }
.matrix th, .matrix td { padding: 13px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
.matrix th { font-weight: 600; color: var(--ink-2); font-size: 14px; }
.matrix td:not(:first-child), .matrix th:not(:first-child) { text-align: center; width: 18%; }
.matrix .yes { color: var(--ok); font-weight: 700; }
.matrix .no { color: var(--ink-4); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.faq { display: grid; gap: 14px; max-width: 760px; }
.faq details { border: 1px solid var(--line); border-radius: 12px; background: var(--paper); padding: 0 20px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::after { content: "+"; color: var(--ink-4); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding-bottom: 18px; color: var(--ink-2); font-size: 15px; }

/* Forms */
.form { display: grid; gap: 16px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink-2); }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; color: var(--ink); background: #fff;
  border: 1px solid var(--line); border-radius: 10px; padding: 11px 13px;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--sky); box-shadow: 0 0 0 3px var(--sky-soft); }
.field textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: 13px; color: var(--ink-3); }
.form-status { display: none; border-radius: 10px; padding: 12px 14px; font-size: 15px; }
.form-status.ok { display: block; background: #dcfce7; color: #14532d; }
.form-status.err { display: block; background: #fee2e2; color: #7f1d1d; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* CTA band */
.cta-band { background: var(--night); color: #fff; padding: 76px 0; text-align: center; position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(50% 60% at 50% 100%, var(--sky-glow) 0, transparent 70%); pointer-events: none; }
.cta-band .wrap { position: relative; }
.cta-band p { color: rgba(255,255,255,0.72); margin-top: 14px; }
.cta-band .hero-cta { justify-content: center; }

/* Prose pages */
.prose { max-width: 72ch; }
.prose h1 { font-size: clamp(32px, 4vw, 44px); }
.prose h2 { font-size: 24px; margin-top: 40px; }
.prose h3 { margin-top: 26px; }
.prose p, .prose li { color: var(--ink-2); margin-top: 12px; }
.prose ul { padding-left: 22px; }
.page-head { padding: 72px 0 32px; }
.page-head p { margin-top: 14px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--paper-2); padding: 48px 0 32px; font-size: 14px; color: var(--ink-3); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; }
.site-footer h4 { font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 12px; font-family: var(--font-body); letter-spacing: 0; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-footer a { color: var(--ink-3); }
.site-footer a:hover { color: var(--sky); }
.footer-note { margin-top: 36px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 13px; }

/* Responsive */
@media (max-width: 900px) {
  .grid-3, .grid-2, .steps, .plans, .status, .split, .split.flip { grid-template-columns: 1fr; }
  .split.flip > :first-child { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .site-header.open .nav { flex-wrap: wrap; height: auto; padding: 12px 0 18px; }
  .site-header.open .nav-links, .site-header.open .nav-cta { display: flex; flex-direction: column; width: 100%; align-items: flex-start; gap: 14px; margin: 8px 0 0; }
  .site-header.open .nav-cta { flex-direction: row; }
  .hero { padding-top: 56px; }
  .hero-shot .frame { margin-bottom: -60px; }
  .hero + section { padding-top: 120px; }
  section { padding: 64px 0; }
  .form .row { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }