/* Black Dog Data — shared styles */

:root {
  --black: #000000;
  --bg: #0a0a0a;
  --bg-alt: #121212;
  --line: rgba(255, 255, 255, 0.1);
  --line-soft: rgba(255, 255, 255, 0.06);
  --white: #ffffff;
  --text: #f2f2f2;
  --text-muted: #a3a3a3;
  --text-faint: #737373;
  --radius: 10px;
  --max-width: 1120px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

/* ---- Background watermark ---- */

.bg-watermark {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--bg);
  overflow: hidden;
  pointer-events: none;
}

.bg-watermark::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1050px;
  height: 1050px;
  max-width: 154vw;
  max-height: 154vw;
  transform: translate(-50%, -50%) rotate(-6deg);
  background-color: rgba(255, 255, 255, 0.06);
  -webkit-mask: url("../assets/img/logo.png") center / contain no-repeat;
  mask: url("../assets/img/logo.png") center / contain no-repeat;
}

a {
  color: inherit;
  text-decoration: none;
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 0.6em;
  color: var(--white);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.1; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); line-height: 1.2; }
h3 { font-size: 1.2rem; }

p { color: var(--text-muted); margin: 0 0 1em; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--text-faint);
  margin-bottom: 1em;
  display: block;
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--white);
  color: var(--black);
}

.btn-primary:hover {
  opacity: 0.85;
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--line);
}

.btn-outline:hover {
  border-color: var(--white);
}

/* ---- Header ---- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 10, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

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

.brand img {
  height: 30px;
  width: auto;
  filter: invert(1) brightness(2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.6rem;
  cursor: pointer;
}

@media (max-width: 820px) {
  .nav-links {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 20px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .nav-links.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-links li {
    width: 100%;
    border-bottom: 1px solid var(--line-soft);
  }

  .nav-links a {
    display: block;
    padding: 14px 0;
  }

  .nav-toggle {
    display: block;
  }

  .nav-actions {
    display: none;
  }
}

/* ---- Hero ---- */

.hero {
  padding: 120px 0 100px;
  text-align: center;
  border-bottom: 1px solid var(--line-soft);
}

.hero .eyebrow {
  text-align: center;
}

.hero p.lead {
  max-width: 620px;
  margin: 0 auto 2.2em;
  font-size: 1.15rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---- Sections ---- */

section {
  padding: 96px 0;
  border-bottom: 1px solid var(--line-soft);
}

section:last-of-type {
  border-bottom: none;
}

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

.section-head {
  max-width: 680px;
  margin: 0 auto 3rem;
  text-align: center;
}

.section-head p {
  font-size: 1.05rem;
}

/* two-column layout */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 780px) {
  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.callout {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
}

.callout h3 {
  margin-bottom: 0.5em;
}

/* ---- How it works ---- */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

@media (max-width: 900px) {
  .steps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

.step {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  background: var(--bg);
}

.step-number {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--text-faint);
  display: block;
  margin-bottom: 0.4em;
}

.step p {
  margin-bottom: 0;
  font-size: 0.94rem;
}

/* ---- Download ---- */

.download {
  text-align: center;
}

.download p {
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.store-note {
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-top: 1.4em;
}

/* ---- Support / contact ---- */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 760px;
  margin: 0 auto;
}

@media (max-width: 700px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
}

.contact-card .value {
  color: var(--white);
  font-size: 1.05rem;
  margin-top: 0.4em;
}

/* ---- Legal / policy pages ---- */

.legal {
  padding: 72px 0 100px;
}

.legal .updated {
  color: var(--text-faint);
  font-size: 0.9rem;
  margin-bottom: 2.5em;
}

.legal h2 {
  margin-top: 2.2em;
  font-size: 1.4rem;
}

.legal h3 {
  margin-top: 1.6em;
  font-size: 1.05rem;
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 600;
}

.legal ul {
  color: var(--text-muted);
  padding-left: 1.2em;
}

.legal li {
  margin-bottom: 0.6em;
}

.legal a {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-nav {
  display: flex;
  gap: 12px;
  margin-bottom: 3em;
  flex-wrap: wrap;
}

.legal-nav a {
  font-size: 0.85rem;
  color: var(--text-muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 16px;
}

.legal-nav a.active {
  color: var(--white);
  border-color: var(--white);
}

/* ---- Footer ---- */

.site-footer {
  padding: 56px 0 40px;
  border-top: 1px solid var(--line-soft);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
}

.footer-top img {
  height: 26px;
  width: auto;
  filter: invert(1) brightness(2);
}

.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-muted);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  color: var(--text-faint);
  font-size: 0.82rem;
}