/* Heater — heatercounter.com */
/* Shared styles across all pages */

:root {
  --bg: #0a0d0a;
  --bg-elev: #121612;
  --bg-card: #161b16;
  --border: #1f2a1f;
  --text: #ffffff;
  --text-dim: #8a9a8a;
  --text-muted: #556055;
  --green: #22c55e;
  --green-dim: #16a34a;
  --green-dark: #14291a;
  --red: #ef4444;
  --max-width: 720px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
nav {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  background: rgba(10, 13, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
}

nav .container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

nav .brand {
  font-weight: 900;
  letter-spacing: 4px;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

nav .brand img.logo-mark {
  width: 24px;
  height: 24px;
  object-fit: contain;
  display: block;
}

nav .links {
  display: flex;
  gap: 24px;
}

nav .links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 1px;
  transition: color 0.15s;
}

nav .links a:hover {
  color: var(--green);
}

/* Main content */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 96px;
}

/* Headings */
h1 {
  font-size: 48px;
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.1;
  margin-bottom: 16px;
}

h2 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-top: 40px;
  margin-bottom: 12px;
  color: var(--text);
}

h3 {
  font-size: 18px;
  font-weight: 700;
  margin-top: 24px;
  margin-bottom: 8px;
  color: var(--text);
}

p {
  color: var(--text-dim);
  margin-bottom: 16px;
}

p strong {
  color: var(--text);
  font-weight: 700;
}

ul, ol {
  margin-left: 20px;
  margin-bottom: 16px;
  color: var(--text-dim);
}

ul li, ol li {
  margin-bottom: 8px;
}

a {
  color: var(--green);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Hero (landing page) */
.hero {
  text-align: center;
  padding: 64px 0 48px;
}

.hero img.logo-hero {
  width: 120px;
  height: 120px;
  object-fit: contain;
  margin: 0 auto 24px;
  display: block;
  filter: drop-shadow(0 0 30px rgba(34, 197, 94, 0.25));
}

.hero .brand-mark {
  font-size: 56px;
  font-weight: 900;
  letter-spacing: 12px;
  margin-bottom: 8px;
}

.hero .tagline {
  color: var(--green);
  font-size: 16px;
  letter-spacing: 6px;
  font-weight: 700;
  margin-bottom: 32px;
}

.hero p.lead {
  font-size: 20px;
  max-width: 540px;
  margin: 0 auto 32px;
  color: var(--text-dim);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 800;
  letter-spacing: 2px;
  font-size: 14px;
  text-decoration: none;
  transition: transform 0.1s, opacity 0.15s;
  border: none;
  cursor: pointer;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--green);
  color: var(--bg);
}

.btn-secondary {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Feature cards */
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}

@media (min-width: 600px) {
  .features {
    grid-template-columns: 1fr 1fr;
  }
}

.feature {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: 12px;
  padding: 20px;
}

.feature h3 {
  margin-top: 0;
  color: var(--text);
}

.feature p {
  margin-bottom: 0;
  font-size: 14px;
}

/* Legal pages */
.legal-content {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.last-updated {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* Support page */
.contact-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}

.contact-card h3 {
  margin-top: 0;
  color: var(--green);
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

footer .container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

footer a {
  color: var(--text-dim);
  margin: 0 12px;
}

/* Disclaimer banner */
.warning {
  background: rgba(239, 68, 68, 0.06);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-left: 3px solid var(--red);
  border-radius: 12px;
  padding: 16px 20px;
  margin: 24px 0;
}

.warning strong {
  color: var(--red);
  display: block;
  margin-bottom: 4px;
  font-size: 13px;
  letter-spacing: 1px;
}

.warning p {
  font-size: 14px;
  margin: 0;
}

/* Responsive */
@media (max-width: 600px) {
  h1 { font-size: 32px; }
  h2 { font-size: 20px; }
  .hero .brand-mark { font-size: 40px; letter-spacing: 8px; }
  .hero .tagline { font-size: 13px; letter-spacing: 4px; }
  .hero p.lead { font-size: 17px; }
  .hero img.logo-hero { width: 96px; height: 96px; }
  main { padding: 32px 20px 64px; }
  nav .links { gap: 16px; }
  nav .links a { font-size: 12px; }
}