/* c:\Users\Asus\Dropbox\Personal\datacentersensor\site\styles.css */
:root {
  --bg: #0b0f14;
  --surface: #121820;
  --surface-2: #171e28;
  --text: #e6edf6;
  --muted: #a7b4c6;
  --primary: #5ab1ff;
  --primary-2: #3b82f6;
  --accent: #75f0a6;
  --danger: #ff6b6b;
  --ok: #37d67a;
  --radius: 14px;
  --shadow: 0 12px 32px rgba(0,0,0,0.35);
}

* { box-sizing: border-box }
html, body { height: 100% }
html { scroll-behavior: smooth }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, Noto Sans, "Apple Color Emoji", "Segoe UI Emoji";
  background: linear-gradient(180deg, #0a0e13 0%, #0f1520 60%, #111827 100%);
  color: var(--text);
}

.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px }
.section { padding: 72px 0 }
.section.alt { background: radial-gradient(1200px 500px at 100% -200px, rgba(90,177,255,0.15), transparent 60%), rgba(255,255,255,0.01) }

.site-header .nav {
  display: flex; align-items: center; justify-content: space-between; padding: 16px 0;
}
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--text); text-decoration: none; letter-spacing: 0.6px; }
.brand-logo-wrap { position: relative; display: inline-block }
.brand-led { position: absolute; left: 15px; bottom: -2px; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px rgba(117,240,166,0.8); animation: brandBlink 1s steps(2, start) infinite }
@keyframes brandBlink { 0%, 50% { opacity: 1 } 50.01%, 100% { opacity: 0 } }
.nav-links { display: flex; gap: 20px }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 500; position: relative }
.nav-links a:hover { color: var(--text) }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0; background: linear-gradient(90deg, var(--primary), var(--accent)); transition: width .25s ease }
.nav-links a:hover::after { width: 100% }
.nav-cta { display: flex; align-items: center; gap: 12px }
.nav-toggle { display: none; background: transparent; border: 1px solid rgba(255,255,255,0.1); color: var(--text); padding: 8px 10px; border-radius: 8px }
.brand-logo { height: 20px; max-height: 20px; width: auto; display: inline-block }
.brand img { height: 20px !important; width: auto !important; display: inline-block }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 16px; border-radius: 12px; text-decoration: none; font-weight: 600; transition: transform .2s ease, box-shadow .2s ease, filter .2s ease }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: white; box-shadow: var(--shadow) }
.btn-secondary { background: rgba(255,255,255,0.06); color: var(--text); border: 1px solid rgba(255,255,255,0.12) }
.btn-primary:hover, .btn-secondary:hover { transform: translateY(-1px) }
.btn-primary:hover { filter: brightness(1.05) }

.hero { padding: 36px 0 60px; background:
  radial-gradient(800px 400px at 20% -200px, rgba(117,240,166,0.12), transparent 60%),
  radial-gradient(900px 500px at 80% -250px, rgba(90,177,255,0.12), transparent 60%);
}
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: center }
.hero-text h1 { font-size: 42px; line-height: 1.12; margin: 0 0 14px }
.hero-text p { color: var(--muted); font-size: 18px; margin: 0 0 18px }
.hero-actions { display: flex; gap: 12px; margin: 16px 0 8px }
.hero-points { display: flex; gap: 16px; color: var(--muted); font-size: 14px }

.dashboard-card {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}
.card-header { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-weight: 600; margin-bottom: 12px }
.status.ok { color: var(--ok) }
.kpi-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px }
.kpi { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 12px }
.kpi-title { color: var(--muted); font-size: 13px }
.kpi-value { font-size: 22px; font-weight: 700 }
.kpi-trend { font-size: 12px; color: var(--muted) }
.kpi-trend.up { color: var(--accent) }
.kpi-trend.down { color: var(--danger) }
.chart-sparkline { margin: 10px 0; display: flex; gap: 6px; align-items: flex-end; height: 80px }
.chart-sparkline .bar { width: 10px; background: linear-gradient(180deg, var(--primary), var(--primary-2)); border-radius: 10px }
.alert-row { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 14px; padding-top: 6px; border-top: 1px dashed rgba(255,255,255,0.1) }
.alert-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--danger); box-shadow: 0 0 6px rgba(255,107,107,0.6); animation: brandBlink 1s steps(2, start) infinite }

h2 { font-size: 32px; margin: 0 0 8px }
.section p { color: var(--muted); margin: 0 0 24px }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px }
.card {
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 18px;
}
.card h3 { margin: 0 0 6px; font-size: 18px }
.card p { margin: 0; color: var(--muted) }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px }
.item { position: relative; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); padding: 18px; overflow: hidden }
.item ul { list-style: none; padding: 12px 0 0; margin: 0; display: grid; gap: 6px }
.item ul li { color: var(--muted) }
.item ul li strong { color: var(--text) }

.item-details { display: none; margin-top: 12px; background: linear-gradient(180deg, var(--surface), var(--surface-2)); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); padding: 14px; box-shadow: var(--shadow); color: var(--text) }
.item.open .item-details { display: block }
.item-details ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px }
.item-details li { color: var(--muted) }
.item-details li strong { color: var(--text) }

.more-btn { margin-top: 8px; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; border: 0; padding: 8px 12px; border-radius: 10px; cursor: pointer; font-weight: 700; box-shadow: var(--shadow); transition: transform .2s ease, filter .2s ease }
.more-btn:hover { transform: translateY(-1px); filter: brightness(1.05) }
.item.open .more-btn { filter: brightness(1.08) }

.pricing { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px }
.price-card { background: linear-gradient(180deg, var(--surface), var(--surface-2)); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); padding: 18px }
.price-card.featured { outline: 1px solid rgba(90,177,255,0.35) }
.price-row { display: flex; align-items: baseline; gap: 8px; margin-bottom: 10px }
.price { font-size: 28px; font-weight: 800; background: linear-gradient(180deg, var(--primary), var(--primary-2)); -webkit-background-clip: text; background-clip: text; color: transparent }
.per { color: var(--muted) }
.features { list-style: none; padding: 0; margin: 0 0 18px }
.features li { padding: 8px 0; color: var(--muted) }

.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px }
.quote { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); padding: 18px }
.quote p { margin: 0 0 10px }

.contact { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 20px; align-items: start }
.form-row { display: grid; gap: 6px; margin-bottom: 12px }
label { color: var(--muted); font-size: 13px }
input, textarea {
  width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04); color: var(--text); outline: none;
}
input:focus, textarea:focus { border-color: rgba(90,177,255,0.6) }
.form-alt { color: var(--muted); font-size: 14px; margin-top: 10px }
.contact-aside { display: grid; gap: 12px }
.contact-card { background: linear-gradient(180deg, var(--surface), var(--surface-2)); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); padding: 16px }

.item, .card, .price-card, .contact-card { transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease }
.item:hover, .card:hover, .price-card:hover, .contact-card:hover { transform: translateY(-3px); border-color: rgba(255,255,255,0.16); box-shadow: 0 16px 40px rgba(0,0,0,0.45) }

.site-footer { border-top: 1px solid rgba(255,255,255,0.08); margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 0.8fr; gap: 14px; padding: 24px 0 }
.footer-links { display: grid; gap: 8px }
.footer-links a { color: var(--muted); text-decoration: none }
.footer-links a:hover { color: var(--text) }
.footer-bottom { display: flex; justify-content: space-between; color: var(--muted); padding: 20px 0; border-top: 1px solid rgba(255,255,255,0.08) }

.inview { opacity: 0; transform: translateY(10px); transition: opacity .5s ease, transform .5s ease }
.inview.in { opacity: 1; transform: translateY(0) }

@supports (backdrop-filter: blur(8px)) {
  .card, .item, .price-card, .contact-card { backdrop-filter: blur(8px); background: rgba(18,24,32,0.55) }
}

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr) }
  .testimonials { grid-template-columns: 1fr 1fr }
  .contact { grid-template-columns: 1fr }
}
@media (max-width: 720px) {
  .nav-links { display: none }
  .nav-toggle { display: inline-flex }
  .cards { grid-template-columns: 1fr }
  .grid-2 { grid-template-columns: 1fr }
  .pricing { grid-template-columns: 1fr }
  .testimonials { grid-template-columns: 1fr }
}
/* WhatsApp icon and badge */
.wa-icon svg { display: inline-block; vertical-align: middle }
.wa-badge { display: inline-flex; align-items: center; gap: 6px; color: var(--text); background: rgba(37,211,102,0.12); border: 1px solid rgba(37,211,102,0.35); padding: 4px 8px; border-radius: 999px }