:root {
  --bg: #0A0D14;
  --bg-card: rgba(16, 21, 32, 0.75);
  --bg-alt: #0E131F;
  --border: rgba(255, 255, 255, 0.08);
  --text: #F1F5F9;
  --text-muted: #94A3B8;
  --orange: #FF5722;
  --cyan: #00E5FF;
  --emerald: #00F59B;
  --gold: #FFB300;
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
}

.wrap {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.wrap--narrow {
  max-width: 960px;
}

/* Owner Banner */
.owner-banner {
  background: linear-gradient(90deg, #1e1500, #382000, #1e1500);
  border-bottom: 1px solid rgba(255, 179, 0, 0.3);
  padding: 0.6rem 0;
  font-size: 0.85rem;
}

.owner-banner__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.owner-banner__tag {
  background: var(--gold);
  color: #000;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
}

.owner-banner__text a {
  color: #FFE082;
  text-decoration: underline;
  font-weight: 600;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 13, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: #fff;
}

.brand__icon {
  width: 36px;
  height: 36px;
}

.brand__text {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand__dot {
  color: var(--cyan);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav__links a:hover {
  color: #fff;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn--primary {
  background: linear-gradient(135deg, var(--orange) 0%, #E64A19 100%);
  color: #fff;
  box-shadow: 0 4px 18px rgba(255, 87, 34, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 87, 34, 0.45);
}

.btn--secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border);
  color: #fff;
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

.btn--block {
  width: 100%;
}

/* Hero */
.hero {
  position: relative;
  padding: 5rem 0 6rem;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.45;
}

.hero__ambient {
  position: absolute;
  top: -10%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 87, 34, 0.12) 0%, rgba(0, 229, 255, 0.08) 50%, transparent 70%);
  z-index: 1;
  pointer-events: none;
}

.hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--cyan);
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 8px var(--orange);
}

h1 {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.heat-text {
  background: linear-gradient(90deg, #FF7043, #FFCA28, #29B6F6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #fff;
}

.stat-lbl {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Thermal Card */
.thermal-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 2rem;
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.thermal-card__header {
  display: flex;
  background: rgba(0, 0, 0, 0.4);
  padding: 0.35rem;
  border-radius: 12px;
  margin-bottom: 2rem;
}

.thermal-mode {
  flex: 1;
  text-align: center;
  padding: 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text-muted);
}

.thermal-mode.active {
  background: #202738;
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.gauge-box {
  text-align: center;
  margin-bottom: 2rem;
  position: relative;
}

.gauge-svg {
  width: 220px;
  margin: 0 auto;
}

.gauge-val {
  font-size: 2.25rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #fff;
  margin-top: -30px;
}

.gauge-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.thermal-metrics {
  display: grid;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.02);
  padding: 1.25rem;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.metric {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}

.metric span {
  color: var(--text-muted);
}

.metric strong {
  font-family: var(--font-mono);
  color: var(--cyan);
}

/* Sections */
.section {
  padding: 6rem 0;
}

.section--alt {
  background: var(--bg-alt);
}

.section-head {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 4rem;
}

.eyebrow {
  color: var(--orange);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.section-head h2 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 87, 34, 0.4);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  display: grid;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: #cbd5e1;
}

.feature-list li::before {
  content: '✓';
  color: var(--emerald);
  margin-right: 0.5rem;
  font-weight: bold;
}

/* Calculator */
.calc-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 3.5rem;
  backdrop-filter: blur(16px);
}

.calc-head {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3rem;
}

.calc-body {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.form-group {
  margin-bottom: 1.75rem;
}

.form-group label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.range-slider {
  width: 100%;
  accent-color: var(--orange);
  cursor: pointer;
}

.toggle-group {
  display: flex;
  gap: 0.5rem;
}

.btn-toggle {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.6rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.btn-toggle.active {
  background: var(--orange);
  color: #fff;
  border-color: var(--orange);
}

.form-select, .form-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-radius: 10px;
  color: #fff;
  font-family: inherit;
}

.calc-results {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.res-card {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.res-title {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.res-val {
  font-size: 1.75rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #fff;
  margin: 0.25rem 0;
}

.res-card--highlight .res-val {
  color: var(--emerald);
}

.res-note {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Contact Card */
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 3.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
}

.contact-person {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
}

.person-avatar {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--orange), var(--gold));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #000;
}

.direct-links {
  display: grid;
  gap: 0.75rem;
}

.direct-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  padding: 0.85rem 1.25rem;
  border-radius: 10px;
  color: #fff;
  text-decoration: none;
  transition: background 0.2s ease;
}

.direct-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.lead-form h3 {
  margin-bottom: 1.5rem;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 900px) {
  .hero__grid, .calc-body, .contact-card {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .nav__links {
    display: none;
  }
  .nav__toggle {
    display: block;
  }
  .calc-box, .contact-card {
    padding: 2rem;
  }
}