/* ==========================================================================
   Product Party — HVAC Suite marketing site
   One stylesheet for every page. No build step.
   Palette follows the established Product Party dark look
   (see a2lsafecharge/landing-page): deep slate blue-gray, blue accent.
   Headlines: Poppins Bold, white. Body: system sans.
   ========================================================================== */

:root {
  --bg-top: #0c1220;
  --bg-bottom: #1b2634;
  --card: #16202e;
  --card-hover: #1c2836;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --ink: #f2f5f8;          /* headlines */
  --body: #c3cdd8;         /* body text */
  --muted: #8896a4;        /* secondary text */
  --accent: #4da3ff;
  --accent-bright: #6bb4ff;
  --accent-ink: #06121f;   /* text on accent buttons */
  --good: #4fd1a1;
  --heading: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--body);
  min-height: 100vh;
  background-color: var(--bg-bottom);
  background-image: linear-gradient(180deg, var(--bg-top) 0%, #121b28 60%, var(--bg-bottom) 100%);
  background-repeat: no-repeat;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); }
a:hover { color: var(--accent-bright); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 {
  font-family: var(--heading);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin: 0 0 10px;
}

/* ---------- header ---------- */
.site-header { border-bottom: 1px solid var(--line); }
.site-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 0 14px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand .name { font-family: var(--heading); font-weight: 700; font-size: 1.05rem; color: var(--ink); }
.brand .tag { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }

.site-nav { display: flex; flex-wrap: wrap; gap: 8px; }
.site-nav a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--body);
  text-decoration: none;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  white-space: nowrap;
}
.site-nav a:hover { color: var(--ink); border-color: var(--line-strong); background: var(--card); }
.site-nav a[aria-current="page"] { color: var(--ink); background: var(--card); border-color: var(--line-strong); }

/* ---------- hero ---------- */
.hero { padding: 56px 0 48px; }
.hero .hero-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
}
.hero .app-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  border: 1px solid var(--line-strong);
  box-shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.6);
}
.hero h1 {
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 1.1;
  margin: 6px 0 14px;
}
.hero .lead { font-size: 1.12rem; max-width: 56ch; margin: 0 0 24px; }

.pills { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 26px; padding: 0; list-style: none; }
.pills li {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--body);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
}

/* ---------- CTAs / badges ---------- */
.cta-row { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; }
.store-badge img { height: 52px; width: auto; }
.store-badge:hover { opacity: 0.85; }
.coming-soon {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  padding: 10px 14px;
}

/* ---------- sections ---------- */
.band { padding: 52px 0; border-top: 1px solid var(--line); }
.band .head { max-width: 62ch; margin-bottom: 30px; }
.band h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin: 0 0 10px; }
.band .head p { margin: 0; font-size: 1.04rem; }

/* feature list */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; padding: 0; margin: 0; list-style: none; }
.features li {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  font-size: 0.95rem;
}
.features li b { display: block; color: var(--ink); font-weight: 650; margin-bottom: 4px; }

/* proof / spec strip */
.specs { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; }
.specs ul { margin: 0; padding-left: 20px; }
.specs li { margin: 6px 0; font-size: 0.92rem; }
.specs li b { color: var(--ink); font-weight: 650; }

/* screenshots */
.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 16px; max-width: 900px; }
.shots img {
  border-radius: 18px;
  border: 1px solid var(--line-strong);
  box-shadow: 0 20px 44px -24px rgba(0, 0, 0, 0.65);
}
.shots figure { margin: 0; }
.shots figcaption { font-size: 0.82rem; color: var(--muted); margin-top: 8px; text-align: center; }

/* ---------- home page app cards ---------- */
.app-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr)); gap: 18px; }
.app-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.app-card:hover { background: var(--card-hover); border-color: var(--line-strong); }
.app-card .card-top { display: flex; align-items: center; gap: 14px; }
.app-card .app-icon-sm {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  flex-shrink: 0;
}
.app-card h3 { margin: 0; font-size: 1.12rem; line-height: 1.3; }
.app-card .region {
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.app-card p { margin: 0; font-size: 0.95rem; flex-grow: 1; }
.app-card .card-links { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.app-card .card-links .more { font-weight: 600; font-size: 0.9rem; text-decoration: none; }
.app-card .card-links .more:hover { text-decoration: underline; }
.app-card .store-badge img { height: 40px; }
.app-card .coming-soon { padding: 8px 12px; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0 52px; margin-top: 20px; }
.site-footer .cols { display: flex; justify-content: space-between; gap: 24px 40px; flex-wrap: wrap; }
.site-footer .col-title {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 10px;
}
.site-footer .brand-name { font-family: var(--heading); font-weight: 700; color: var(--ink); }
.site-footer nav a, .site-footer .col a { display: block; font-size: 0.9rem; color: var(--body); text-decoration: none; margin: 4px 0; }
.site-footer nav a:hover, .site-footer .col a:hover { color: var(--ink); }
.site-footer .fine { font-size: 0.78rem; color: var(--muted); max-width: 72ch; margin-top: 26px; }

/* ---------- small screens ---------- */
@media (max-width: 640px) {
  .hero { padding: 40px 0 36px; }
  .hero .hero-grid { grid-template-columns: 1fr; gap: 18px; }
  .hero .app-icon { width: 76px; height: 76px; border-radius: 18px; }
  .band { padding: 40px 0; }
  .site-nav { gap: 6px; }
  .site-nav a { font-size: 0.78rem; padding: 5px 10px; }
}