/* ── Base ──────────────────────────────────────────────── */
:root {
  --accent: #007acc;
  --bg: #09090b;
  --bg-card: #0f0f12;
  --bg-alt: #07070a;
  --border: #18181f;
  --border-hi: #252530;
  --text: #d8d8e0;
  --text-muted: #72727e;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  --radius: 3px;
}

.landing {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  overflow-x: hidden;
}

/* ── Nav ──────────────────────────────────────────────── */
.landing-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 52px;
  background: rgba(9, 9, 11, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.landing-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.2px;
  font-family: var(--mono);
}

.landing-nav-brand svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
}

.landing-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
}

.nav-link svg {
  width: 15px;
  height: 15px;
}

.nav-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-btn-primary {
  padding: 5px 14px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: background 0.15s;
  border: 1px solid rgba(255,255,255,0.1);
}

.nav-btn-primary:hover {
  background: #1a8fd1;
}

/* ── Nav auth skeleton ────────────────────────────────── */
.nav-auth-skeleton {
  width: 80px;
  height: 28px;
  background: var(--border);
  border-radius: var(--radius);
  animation: skeleton-pulse 1.4s ease-in-out infinite;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ── User menu ────────────────────────────────────────── */
.user-menu {
  position: relative;
}

.user-menu-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--border-hi);
  border-radius: 20px;
  padding: 3px 10px 3px 4px;
  cursor: pointer;
  color: var(--text);
  font-size: 13px;
  transition: border-color 0.15s, background 0.15s;
}

.user-menu-trigger:hover {
  border-color: #333;
  background: rgba(255,255,255,0.04);
}

.user-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.user-avatar-initials {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}

.user-avatar-lg {
  width: 36px;
  height: 36px;
  font-size: 15px;
}

.user-menu-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-menu-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: #131318;
  border: 1px solid var(--border-hi);
  border-radius: 6px;
  min-width: 200px;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  overflow: hidden;
}

.user-menu-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 14px 12px;
}

.user-menu-uname {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}

.user-menu-email {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 1px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 130px;
}

.user-menu-divider {
  height: 1px;
  background: var(--border);
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 9px 14px;
  color: var(--text-muted);
  font-size: 13px;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.12s, color 0.12s;
}

.user-menu-item:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

.user-menu-signout {
  color: #e06c75;
}

.user-menu-signout:hover {
  background: rgba(224, 108, 117, 0.08);
  color: #e06c75;
}

/* ── Hero ─────────────────────────────────────────────── */
.landing-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding: 80px 80px 80px 80px;
  max-width: 1200px;
  margin: 0 auto;
  min-height: 80vh;
}

.hero-left {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.eyebrow-tag {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.2px;
  color: var(--accent);
  border: 1px solid rgba(0, 122, 204, 0.3);
  padding: 2px 7px;
  border-radius: 2px;
}

.eyebrow-dot {
  width: 3px;
  height: 3px;
  background: var(--border-hi);
  border-radius: 50%;
}

.hero-title {
  margin: 0 0 16px;
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: #e8e8f0;
}

.hero-accent {
  color: var(--accent);
  font-weight: 800;
}

.hero-subtitle {
  margin: 0 0 32px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 480px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.cta-primary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: background 0.15s, transform 0.1s;
  border: 1px solid rgba(255,255,255,0.1);
}

.cta-primary svg {
  width: 16px;
  height: 16px;
}

.cta-primary:hover {
  background: #1a8fd1;
  transform: translateY(-1px);
}

.cta-secondary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  background: transparent;
  border: 1px solid var(--border-hi);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}

.cta-secondary svg {
  width: 16px;
  height: 16px;
}

.cta-secondary:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: #333;
  transform: translateY(-1px);
}

/* Specs strip */
.hero-specs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.spec-pill {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 2px;
}

.spec-sep {
  color: var(--border-hi);
  font-size: 11px;
}

/* Hero right — schematic */
.hero-right {
  display: flex;
  align-items: center;
  justify-content: center;
}

.schematic-svg {
  width: 100%;
  max-width: 440px;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  filter: drop-shadow(0 8px 32px rgba(0, 0, 0, 0.6));
}

/* ── Sections ─────────────────────────────────────────── */
.landing-section {
  padding: 80px 80px;
  max-width: 1200px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.landing-section-alt {
  max-width: 100%;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}

.landing-section-alt .section-header,
.landing-section-alt .features-grid {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 80px;
  padding-right: 80px;
}

.section-header {
  margin-bottom: 40px;
}

.section-label {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.5px;
  margin-bottom: 10px;
  opacity: 0.7;
}

.section-title {
  margin: 0 0 8px;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.6px;
  color: #e8e8f0;
}

.section-sub {
  margin: 0;
  font-size: 14.5px;
  color: var(--text-muted);
  max-width: 480px;
  line-height: 1.65;
}

/* ── Boards ───────────────────────────────────────────── */
.boards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}

.board-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  transition: border-color 0.2s;
  position: relative;
}

.board-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 0.2s;
  border-radius: var(--radius) var(--radius) 0 0;
}

.board-card:hover {
  border-color: var(--border-hi);
}

.board-card:hover::before {
  opacity: 1;
}

.board-svg {
  width: 100%;
  max-width: 210px;
  height: auto;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

.board-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  width: 100%;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.board-name {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text);
}

.board-chip {
  font-size: 11px;
  font-family: var(--mono);
  color: var(--text-muted);
}

/* ── Features ─────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.feature-card {
  background: var(--bg-alt);
  padding: 28px 24px;
  transition: background 0.15s;
  border-radius: 0;
}

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

.feature-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--accent);
  border: 1px solid rgba(0, 122, 204, 0.25);
  border-radius: 2px;
  background: rgba(0, 122, 204, 0.06);
}

.feature-icon svg {
  width: 18px;
  height: 18px;
}

.feature-title {
  margin: 0 0 7px;
  font-size: 14px;
  font-weight: 700;
  color: #e8e8f0;
}

.feature-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-muted);
}

/* ── Support ──────────────────────────────────────────── */
.landing-support {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 72px 40px;
}

.support-content {
  max-width: 520px;
  margin: 0 auto;
  text-align: center;
}

.support-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent);
}

.support-icon svg {
  width: 36px;
  height: 36px;
}

.support-title {
  margin: 0 0 10px;
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #e8e8f0;
}

.support-sub {
  margin: 0 0 28px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}

.support-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.support-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 13.5px;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  transition: opacity 0.15s, transform 0.1s;
}

.support-btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.support-btn-gh {
  background: #1c2128;
  color: #e6edf3;
  border: 1px solid #30363d;
}

.support-btn-pp {
  background: #003087;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.1);
}

.support-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ── Footer ───────────────────────────────────────────── */
.landing-footer {
  padding: 28px 40px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  background: var(--bg);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
}

.footer-brand svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.15s;
}

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

.footer-copy {
  font-size: 11.5px;
  color: #333;
  margin: 0;
  width: 100%;
  text-align: center;
  font-family: var(--mono);
}

.footer-copy a {
  color: #3a3a3a;
  text-decoration: none;
  transition: color 0.15s;
}

.footer-copy a:hover {
  color: var(--text-muted);
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 900px) {
  .landing-hero {
    grid-template-columns: 1fr;
    padding: 60px 32px;
    min-height: auto;
    gap: 40px;
  }

  .hero-right {
    order: -1;
  }

  .schematic-svg {
    max-width: 360px;
  }

  .hero-title {
    font-size: 36px;
  }

  .landing-section,
  .landing-support {
    padding: 60px 32px;
  }

  .landing-section-alt .section-header,
  .landing-section-alt .features-grid {
    padding-left: 32px;
    padding-right: 32px;
  }
}

@media (max-width: 600px) {
  .landing-nav {
    padding: 0 20px;
  }

  .landing-nav-links .nav-link:not(:last-child) {
    display: none;
  }

  .landing-hero {
    padding: 48px 20px;
  }

  .landing-section,
  .landing-support {
    padding: 48px 20px;
  }

  .landing-section-alt .section-header,
  .landing-section-alt .features-grid {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero-title {
    font-size: 30px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .landing-footer {
    padding: 24px 20px;
    flex-direction: column;
    align-items: flex-start;
  }
}