@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Instrument+Sans:wght@400;500&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black: #0a0e1a;
  --white: #f0f2f8;
  --gray: #8892a4;
  --gray-light: #e2e5ee;
  --accent: #c8f53a;
  --accent-dim: #9ebe1e;
  --surface: #111827;
  --surface2: #1a2438;
  --border: rgba(255,255,255,0.08);
  --teal: #2dd4a0;
  --amber: #f0a830;
  --red: #f05050;
  --blue: #60b0f0;
  --radius: 4px;
  --font-display: 'Syne', sans-serif;
  --font-body: 'Instrument Sans', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--white);
  min-height: 100vh;
  line-height: 1.6;
}

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 3rem;
  background: rgba(10,14,26,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 0.5px solid var(--border);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--white);
  text-decoration: none;
}

.nav-logo span { color: var(--accent); }

.nav-links { display: flex; gap: 2rem; }

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray);
  text-decoration: none;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a.active { border-bottom: 1px solid var(--accent); padding-bottom: 2px; }

/* HERO */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 8rem 3rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(200,245,58,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200,245,58,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-glow {
  position: absolute; bottom: -100px; left: -100px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(200,245,58,0.08) 0%, transparent 70%);
  z-index: 0;
}

.hero-content { position: relative; z-index: 1; max-width: 900px; }

.hero-tag {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: flex; align-items: center; gap: 10px;
}

.hero-tag::before {
  content: '';
  width: 32px; height: 1px;
  background: var(--accent);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -3px;
  color: var(--white);
  margin-bottom: 2rem;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 16px;
  color: var(--gray);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 3rem;
}

.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent);
  color: var(--black);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: var(--radius);
  transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover { background: var(--accent-dim); transform: translateY(-1px); }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent;
  color: var(--white);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 28px;
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s, transform 0.15s;
}

.btn-ghost:hover { border-color: rgba(255,255,255,0.3); transform: translateY(-1px); }

/* SECTIONS */
section {
  padding: 5rem 3rem;
  border-top: 0.5px solid var(--border);
}

.section-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.section-body {
  font-size: 15px;
  color: var(--gray);
  max-width: 600px;
  line-height: 1.75;
}

/* CARDS */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 3rem;
}

.card {
  background: var(--surface);
  padding: 2rem;
  transition: background 0.2s;
}

.card:hover { background: var(--surface2); }

.card-num {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
  letter-spacing: -0.5px;
}

.card p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.7;
}

/* FOOTER */
footer {
  border-top: 0.5px solid var(--border);
  padding: 2rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

footer .logo {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -1px;
}

footer .logo span { color: var(--accent); }

footer p {
  font-size: 12px;
  color: var(--gray);
}

footer a {
  font-size: 12px;
  color: var(--gray);
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover { color: var(--white); }

/* HAMBURGER MENU */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 200;
}

.nav-hamburger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--white);
  transition: transform 0.3s, opacity 0.3s;
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 700px) {
  .nav-hamburger { display: flex; }

  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10,14,26,0.97);
    backdrop-filter: blur(16px);
    z-index: 150;
    justify-content: center;
    align-items: center;
    padding: 2rem;
  }

  .nav-links.open { display: flex; }

  .nav-links a {
    font-size: 28px;
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.5px;
    text-transform: none;
    padding: 1rem 0;
    border-bottom: 0.5px solid var(--border);
    width: 100%;
    text-align: center;
    color: var(--gray);
  }

  .nav-links a.active,
  .nav-links a:hover { color: var(--white); border-bottom-color: var(--accent); }

  nav { padding: 1rem 1.5rem; }
  .hero, section { padding-left: 1.5rem; padding-right: 1.5rem; }
  footer { padding: 1.5rem; flex-direction: column; align-items: flex-start; }
}

/* ANIMATIONS */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up { animation: fadeUp 0.6s ease forwards; }
.fade-up-1 { animation-delay: 0.1s; opacity: 0; }
.fade-up-2 { animation-delay: 0.2s; opacity: 0; }
.fade-up-3 { animation-delay: 0.35s; opacity: 0; }
.fade-up-4 { animation-delay: 0.5s; opacity: 0; }

/* DASHBOARD SPECIFIC */
.dash-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.dash-metric {
  background: var(--surface);
  padding: 1.5rem;
}

.dash-metric .lbl {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 8px;
}

.dash-metric .val {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--white);
}

.dash-metric .unit {
  font-size: 14px;
  color: var(--gray);
  font-weight: 400;
}

.dash-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 640px) {
  .dash-panels { grid-template-columns: 1fr; }
  nav { padding: 1rem 1.5rem; }
  .hero, section { padding-left: 1.5rem; padding-right: 1.5rem; }
  footer { padding: 1.5rem; }
}

.dash-panel {
  background: var(--surface);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.dash-panel h2 {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 1.25rem;
}

.zone-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 0.5px solid var(--border);
  font-size: 14px;
  color: var(--white);
}

.zone-row:last-child { border-bottom: none; }

.zone-label {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-on  { background: var(--teal); box-shadow: 0 0 6px var(--teal); }
.dot-off { background: #333; }
.dot-warn{ background: var(--amber); box-shadow: 0 0 6px var(--amber); }

.toggle {
  width: 40px; height: 22px;
  background: #222;
  border: 0.5px solid var(--border);
  border-radius: 11px;
  cursor: pointer;
  position: relative;
  transition: background 0.2s;
}

.toggle.on { background: var(--teal); border-color: var(--teal); }

.toggle::after {
  content: '';
  width: 16px; height: 16px;
  background: white;
  border-radius: 50%;
  position: absolute;
  top: 2px; left: 2px;
  transition: left 0.2s;
}

.toggle.on::after { left: 20px; }

.status-badge {
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 2px;
}

.status-on  { background: rgba(45,212,160,0.12); color: var(--teal); }
.status-off { background: rgba(255,255,255,0.05); color: var(--gray); }
.status-warn{ background: rgba(240,168,48,0.12); color: var(--amber); }