/* Public storefront for AquaFlow. */

:root {
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --brand: #0284c7;
  --brand-dark: #075985;
  --deep: #0b2740;
  --surface: #ffffff;
  --bg: #f8fafc;
  --radius: 16px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.6; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .6rem; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 1.1rem; }
.small { font-size: .87rem; }
.muted { color: var(--muted); }
.right { text-align: right; }
.mt { margin-top: 1.2rem; }
.mb0 { margin-bottom: 0; }
.btn-row { display: flex; gap: .6rem; flex-wrap: wrap; }

/* header */
.site-head { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.head-inner { display: flex; align-items: center; gap: 1rem; padding-top: .8rem; padding-bottom: .8rem; }
.logo { font-weight: 800; font-size: 1.05rem; color: var(--ink); }
.logo:hover { text-decoration: none; }
.head-inner nav { margin-left: auto; display: flex; align-items: center; gap: 1.1rem; font-size: .92rem; }
.head-inner nav a { color: var(--ink); }

.btn-cta {
  display: inline-block; background: var(--brand); color: #fff !important;
  padding: .55rem 1.1rem; border-radius: 999px; font-weight: 700; font-size: .92rem;
  border: 0; cursor: pointer; font-family: inherit;
}
.btn-cta:hover { background: var(--brand-dark); text-decoration: none; }
.btn-ghost {
  display: inline-block; padding: .55rem 1.1rem; border-radius: 999px;
  border: 1px solid var(--brand); color: var(--brand); font-weight: 700; font-size: .92rem;
}
.btn-ghost:hover { background: #e0f2fe; text-decoration: none; }
.big { padding: .8rem 1.6rem; font-size: 1rem; }

/* hero */
.hero {
  background: linear-gradient(150deg, #0b2740 0%, #0e7490 65%, #38bdf8 130%);
  color: #e2e8f0; padding: 3.5rem 0 4rem;
}
.hero-inner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 2.2rem; align-items: center; }
.hero h1 { font-size: 2.5rem; color: #fff; letter-spacing: -.02em; }
.lede { font-size: 1.1rem; color: #bae6fd; margin-bottom: 1.4rem; }
.hero-actions { display: flex; gap: .7rem; flex-wrap: wrap; }
.hero-actions .btn-ghost { border-color: #7dd3fc; color: #e0f2fe; }
.hero-actions .btn-ghost:hover { background: rgba(255,255,255,.12); }
.hero-points { list-style: none; padding: 0; margin: 1.6rem 0 0; font-size: .94rem; }
.hero-points li { margin-bottom: .35rem; }
.hero-card { background: rgba(255,255,255,.96); color: var(--ink); border-radius: var(--radius); padding: 1.4rem; box-shadow: 0 20px 50px rgba(2,20,40,.3); }
.hero-card h3 { font-size: 1rem; }
.quality-badge { background: #d1fae5; color: #065f46; border-radius: 10px; padding: .7rem .85rem; margin-top: .8rem; font-size: .82rem; }
.quality-badge strong { display: block; }

/* sections */
.section-title { font-size: 1.6rem; margin: 2.6rem 0 1.2rem; }
.cat-title { font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-top: 1.6rem; }

.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(215px, 1fr)); gap: 1rem; }
.product {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.1rem; box-shadow: 0 1px 2px rgba(15,23,42,.05);
}
.product-icon { font-size: 1.8rem; }
.product h4 { margin: .4rem 0 .2rem; font-size: 1rem; }
.price { font-size: 1.35rem; font-weight: 800; color: var(--brand-dark); margin-top: .5rem; }
.price .unit { font-size: .8rem; font-weight: 500; color: var(--muted); }

.panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.4rem; margin-bottom: 1.2rem;
}
.success-panel { border-color: #6ee7b7; background: #ecfdf5; }
.error-panel { border-color: #fca5a5; background: #fef2f2; color: #991b1b; }
.ref { font-family: Consolas, monospace; background: #fff; padding: .1rem .4rem; border-radius: 5px; }

/* order form */
.order-form label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: .8rem; }
.order-form input {
  width: 100%; margin-top: .25rem; padding: .6rem .7rem; font: inherit; font-size: .95rem;
  border: 1px solid #cbd5e1; border-radius: 10px;
}
.order-form input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(2,132,199,.15); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .9rem; }
.order-items { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: .6rem; }
.order-item {
  display: flex !important; align-items: center; gap: .7rem;
  border: 1px solid var(--line); border-radius: 12px; padding: .6rem .8rem; margin: 0 !important; background: var(--bg);
}
.oi-name { flex: 1; display: flex; flex-direction: column; font-weight: 600; font-size: .9rem; }
.oi-name small { font-weight: 500; color: var(--muted); }
.order-item input { width: 74px !important; text-align: center; margin: 0 !important; }
.hp { position: absolute; left: -9999px; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 1rem; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.1rem; }
.step span {
  display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--brand); color: #fff; font-weight: 700; margin-bottom: .5rem;
}
.step h4 { font-size: .98rem; margin-bottom: .2rem; }
.step p { margin: 0; font-size: .88rem; color: var(--muted); }

/* tracker */
.track-wrap { padding-bottom: 2rem; }
.tracker { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; margin: 1.2rem 0; }
.tracker li {
  flex: 1 1 120px; display: flex; align-items: center; gap: .5rem;
  padding: .6rem .7rem; border-radius: 10px; background: var(--bg);
  border: 1px solid var(--line); font-size: .86rem; color: var(--muted);
}
.tracker li.done { background: #e0f2fe; border-color: #7dd3fc; color: var(--brand-dark); font-weight: 600; }
.tracker li span {
  display: grid; place-items: center; width: 1.5rem; height: 1.5rem; border-radius: 50%;
  background: #cbd5e1; color: #fff; font-size: .78rem; flex: none;
}
.tracker li.done span { background: var(--brand); }
.pill-status { font-size: .75rem; padding: .15rem .55rem; border-radius: 999px; background: #fee2e2; color: #991b1b; }
.track-table { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: .92rem; }
.track-table td { padding: .4rem 0; border-bottom: 1px solid var(--line); }
.track-table tr.total td { border-top: 2px solid var(--line); border-bottom: 0; font-size: 1.05rem; }

/* footer */
.site-foot { background: var(--deep); color: #94a3b8; margin-top: 3rem; padding: 2.2rem 0 1.2rem; }
.site-foot a { color: #7dd3fc; }
.site-foot strong { color: #fff; }
.foot-inner { display: flex; gap: 2rem; flex-wrap: wrap; justify-content: space-between; }
.copyright { text-align: center; font-size: .78rem; margin: 1.4rem 0 0; color: #475569; }

@media (max-width: 820px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.9rem; }
  .form-grid { grid-template-columns: 1fr; }
  .head-inner nav { gap: .7rem; font-size: .85rem; }
  .head-inner nav a:not(.btn-cta) { display: none; }
}