/* stronix.app — dark, on-brand, zero-dependency.
   Palette/typography from the demo brand pack: off-black #121212 surfaces,
   near-white ink, Stronix greens (#34ae9d / #9ec1bc), Space Grotesk, 0.875rem radius. */
:root {
  --bg: #121212; --bg2: #181a1a; --card: #1c1f1e; --line: rgba(255,255,255,0.08);
  --ink: #f5f5f5; --muted: #a3a3a3;
  --accent: #34ae9d; --accent-soft: #9ec1bc; --on-accent: #111827;
  --r: 0.875rem;
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg); color: var(--ink);
  font: 16px/1.65 "Space Grotesk", -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
::selection { background: rgba(52,174,157,0.4); }
a { color: var(--accent); text-decoration: none; }
img { max-width: 100%; }

h1 { font-size: clamp(2.6rem, 7vw, 4.4rem); line-height: 1.02; letter-spacing: -0.03em; font-weight: 700; }
h2 { font-size: clamp(1.6rem, 4vw, 2.3rem); letter-spacing: -0.02em; text-align: center; }
h3 { font-size: 1.08rem; margin-bottom: 6px; }
.section-sub { text-align: center; color: var(--muted); margin: 10px 0 36px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.micro { font-size: 0.8rem; color: var(--muted); margin-top: 18px; letter-spacing: 0.01em; }

/* ---- nav ---- */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(18,18,18,0.85); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); padding: 14px 0; }
.nav .links { gap: 26px; }
.nav .links a { color: var(--muted); font-weight: 500; font-size: 0.95rem; }
.nav .links a:hover { color: var(--ink); }
.wordmark { height: 26px; display: block; }
.wordmark.dim { opacity: 0.7; height: 22px; }

/* ---- buttons ---- */
.btn { display: inline-block; background: var(--accent); color: var(--on-accent) !important; font-weight: 600; padding: 13px 28px; border-radius: var(--r); transition: transform 0.15s, box-shadow 0.15s; box-shadow: 0 4px 24px rgba(52,174,157,0.25); }
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 32px rgba(52,174,157,0.35); }
.btn.ghost { background: transparent; color: var(--ink) !important; border: 1px solid var(--line); box-shadow: none; }
.btn.ghost:hover { border-color: rgba(255,255,255,0.25); }
.btn.small { padding: 9px 18px; font-size: 0.9rem; border-radius: calc(var(--r) - 2px); }
.btn.full { display: block; text-align: center; margin-top: 18px; }
.btn.invert { background: #111827; color: #f5f5f5 !important; box-shadow: none; }

/* ---- hero ---- */
.hero { position: relative; overflow: hidden; padding: 110px 0 90px; }
.glow { position: absolute; border-radius: 50%; filter: blur(120px); pointer-events: none; }
.glow-a { width: 560px; height: 560px; background: rgba(52,174,157,0.16); top: -180px; right: -120px; }
.glow-b { width: 420px; height: 420px; background: rgba(158,193,188,0.08); bottom: -200px; left: -140px; }
.xmark { position: absolute; width: 720px; opacity: 0.05; right: -200px; top: -140px; transform: rotate(8deg); pointer-events: none; }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-block; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); border: 1px solid rgba(52,174,157,0.35); border-radius: 99px; padding: 6px 14px; margin-bottom: 22px; }
.grad { background: linear-gradient(100deg, var(--accent) 20%, var(--accent-soft) 80%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { max-width: 520px; margin: 22px 0 30px; font-size: 1.12rem; color: var(--muted); }
.lede strong { color: var(--ink); }
.cta-row { justify-content: flex-start; }

/* ---- phone mock ---- */
.phone-wrap { display: flex; justify-content: center; }
.phone { width: 280px; border-radius: 42px; padding: 12px; background: #0b0c0c; border: 1px solid rgba(255,255,255,0.12); box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 60px rgba(52,174,157,0.12); transform: rotate(2.5deg); }
.screen { background: var(--bg); border-radius: 32px; padding: 16px 14px 60px; position: relative; min-height: 480px; overflow: hidden; }
.mini-hero { background: var(--accent); border-radius: 0 0 22px 22px; margin: -16px -14px 16px; padding: 26px 18px 20px; display: flex; flex-direction: column; }
.mini-greet { color: rgba(17,24,39,0.7); font-size: 12px; font-weight: 500; }
.mini-name { color: var(--on-accent); font-size: 26px; font-weight: 700; letter-spacing: -0.02em; }
.mini-pill { margin-top: 10px; align-self: flex-start; background: rgba(17,24,39,0.15); color: var(--on-accent); font-size: 10px; font-weight: 600; padding: 4px 10px; border-radius: 99px; }
.mini-cta { margin-top: 14px; background: #111827; color: #f5f5f5; text-align: center; font-size: 12px; font-weight: 600; padding: 11px; border-radius: 12px; }
.mini-label { font-size: 10px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 2px 4px 8px; }
.mini-card { display: flex; align-items: center; gap: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 12px; margin-bottom: 10px; }
.mini-dot { width: 9px; height: 9px; border-radius: 99px; background: var(--accent); flex-shrink: 0; }
.mini-dot.alt { background: var(--accent-soft); }
.mini-title { font-size: 12.5px; font-weight: 600; }
.mini-sub { font-size: 10.5px; color: var(--muted); }
.mini-dock { position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%); display: flex; gap: 14px; background: rgba(245,245,245,0.08); border: 1px solid var(--line); padding: 10px 16px; border-radius: 99px; backdrop-filter: blur(6px); }
.mini-dock span { width: 8px; height: 8px; border-radius: 99px; background: rgba(245,245,245,0.25); }
.mini-dock span.active { background: var(--accent); }

/* ---- sections / cards ---- */
section { padding: 84px 0; }
.tinted { background: var(--bg2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 26px; transition: transform 0.15s, border-color 0.15s; }
.card:hover { transform: translateY(-2px); border-color: rgba(52,174,157,0.35); }
.card p { color: var(--muted); font-size: 0.95rem; }
.chip { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 12px; background: rgba(52,174,157,0.14); margin-bottom: 14px; }
.chip svg { width: 21px; height: 21px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.surface-card .num { font-size: 0.8rem; font-weight: 700; color: var(--accent); letter-spacing: 0.1em; }
.surface-card h3 { margin-top: 8px; }

/* ---- pricing ---- */
.pricing .card { position: relative; display: flex; flex-direction: column; }
.pricing .featured { border-color: rgba(52,174,157,0.6); box-shadow: 0 12px 48px rgba(52,174,157,0.16); }
.flag { position: absolute; top: -12px; left: 24px; background: var(--accent); color: var(--on-accent); font-size: 0.74rem; font-weight: 700; padding: 4px 13px; border-radius: 99px; }
.price { font-size: 2.6rem; font-weight: 700; letter-spacing: -0.02em; margin: 8px 0 16px; }
.price span { font-size: 1rem; font-weight: 500; color: var(--muted); }
.price.custom { font-size: 1.9rem; }
.pricing ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 9px; color: var(--muted); font-size: 0.94rem; flex: 1; }
.pricing li::before { content: "✓  "; color: var(--accent); font-weight: 700; }

/* ---- faq ---- */
details { border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { font-weight: 600; cursor: pointer; list-style: none; position: relative; padding-right: 28px; }
summary::after { content: "+"; position: absolute; right: 4px; color: var(--accent); font-weight: 600; }
details[open] summary::after { content: "–"; }
details p { margin-top: 10px; color: var(--muted); }

/* ---- CTA panel ---- */
.cta-panel { position: relative; overflow: hidden; background: linear-gradient(120deg, var(--accent), #2a8d80); border-radius: calc(var(--r) * 1.6); padding: 64px 32px; text-align: center; }
.cta-panel h2 { color: var(--on-accent); }
.cta-panel p { color: rgba(17,24,39,0.75); margin: 12px 0 26px; }
.xmark.small { width: 360px; right: -110px; top: -80px; opacity: 0.5; }

footer { border-top: 1px solid var(--line); padding: 30px 0; }
footer a { color: var(--muted); text-decoration: underline; }

/* ---- responsive ---- */
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .lede { margin-inline: auto; }
  .cta-row { justify-content: center; }
  .phone { transform: rotate(0); }
  .nav .links { gap: 16px; }
  .nav .links a:not(.btn) { display: none; }
}

/* ---- lead form ---- */
.lead-form { max-width: 560px; margin: 0 auto; text-align: left; }
.lead-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 18px; }
.lead-grid input, .lead-grid textarea {
  width: 100%; background: rgba(17,24,39,0.22); border: 1px solid rgba(17,24,39,0.3);
  border-radius: calc(var(--r) - 2px); padding: 13px 15px; font: inherit; font-size: 0.95rem;
  color: var(--on-accent); caret-color: var(--on-accent);
}
.lead-grid input::placeholder, .lead-grid textarea::placeholder { color: rgba(17,24,39,0.6); }
.lead-grid input:focus, .lead-grid textarea:focus { outline: none; border-color: #111827; background: rgba(17,24,39,0.3); }
.lead-grid .span2 { grid-column: 1 / -1; }
.lead-grid .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.lead-form .btn { display: block; width: 100%; text-align: center; border: 0; cursor: pointer; font-size: 1rem; }
.lead-status { text-align: center; margin-top: 12px; color: rgba(17,24,39,0.85); font-weight: 500; min-height: 1.4em; }
@media (max-width: 560px) { .lead-grid { grid-template-columns: 1fr; } }