/* =====================================================================
   Delv Express · Subpage shared CSS (loaded by all subpages)
   ===================================================================== */
:root {
  --bg:           #F4EFE5;
  --bg-soft:      #ECE6D7;
  --card:         #FBF8F1;
  --ink:          #0A1B33;
  --ink-soft:     #1A2D4D;
  --dim:          #4A5670;
  --mute:         #6B6C5E;
  --accent-text:  #8A6010;
  --line:         rgba(10, 27, 51, 0.10);
  --line-strong:  rgba(10, 27, 51, 0.22);
  --accent:       #E8A547;
  --accent-soft:  #D89530;
  --status-green: #2F8A5B;
  --status-amber: #C68A2E;
  --status-red:   #C45D3E;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  font-feature-settings: "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body { min-height: 100vh; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; padding: 0; }
input, select, textarea { font-family: inherit; }
::selection { background: var(--accent); color: var(--ink); }

h1, h2, h3, h4, .display { font-family: "Space Grotesk", -apple-system, sans-serif; }

.mono {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-variant-ligatures: none;
  font-feature-settings: "zero";
}
.serif-italic {
  font-family: "Instrument Serif", "Times New Roman", serif;
  font-style: italic;
  font-weight: 400;
}

.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 56px;
  position: relative;
}
@media (max-width: 900px) { .container { padding: 0 24px; } }

.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px; border-radius: 8px;
  background: var(--accent); color: var(--ink);
  font-size: 14px; font-weight: 600; letter-spacing: -0.005em;
  transition: transform .15s ease, background .2s ease;
}
.btn-primary:hover { transform: translateY(-1px); background: var(--accent-soft); }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px; border-radius: 8px;
  border: 1px solid var(--line-strong); color: var(--ink);
  font-size: 14px; font-weight: 500;
  transition: background 0.2s ease;
}
.btn-ghost:hover { background: var(--bg-soft); }

.btn-ghost-dark {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px; border-radius: 8px;
  border: 1px solid rgba(244,239,229,0.3); color: var(--bg);
  font-size: 14px; font-weight: 500;
}
.btn-ghost-dark:hover { background: rgba(244,239,229,0.06); }

.field {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 14px;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s ease;
}
.field:focus { border-color: var(--accent); }
.field::placeholder { color: var(--mute); }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10.5px; letter-spacing: 0.06em;
  background: var(--bg-soft); color: var(--ink);
  border: 1px solid var(--line);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
section { animation: fadeUp .8s cubic-bezier(.2,.7,.2,1) both; }

.grid-overlay {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(to right, var(--line) 1px, transparent 1px);
  background-size: calc(100vw / 12) 100%;
  opacity: 0.6;
  z-index: 0;
}

/* =====================================================================
   Delv Express · Responsive Grid Utilities & Custom Overrides
   ===================================================================== */

.grid-2col {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
}
@media (max-width: 900px) {
  .grid-2col {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }
}

.grid-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 1024px) {
  .grid-3col {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}
@media (max-width: 768px) {
  .grid-3col {
    grid-template-columns: 1fr !important;
  }
}

.grid-4col {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 1024px) {
  .grid-4col {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}
@media (max-width: 640px) {
  .grid-4col {
    grid-template-columns: 1fr !important;
  }
}

.grid-5col {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 28px;
}
@media (max-width: 1024px) {
  .grid-5col {
    grid-template-columns: repeat(3, 1fr) !important;
  }
}
@media (max-width: 768px) {
  .grid-5col {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}
@media (max-width: 480px) {
  .grid-5col {
    grid-template-columns: 1fr !important;
  }
}

.grid-3col-addresses {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
@media (max-width: 768px) {
  .grid-3col-addresses {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }
}

.field-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 600px) {
  .field-cols {
    grid-template-columns: 1fr !important;
  }
}

.tracker-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
}
@media (max-width: 900px) {
  .tracker-grid {
    grid-template-columns: 1fr !important;
    gap: 32px !important;
  }
}

/* Custom platform LayerStack table responsiveness */
.grid-custom-layerstack {
  display: grid;
  grid-template-columns: 60px 240px 1fr 280px;
  gap: 16px;
}
@media (max-width: 1000px) {
  .grid-custom-layerstack {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
    padding: 24px 16px !important;
  }
  .grid-custom-layerstack > span:nth-child(2) {
    font-size: 24px !important;
  }
  .grid-custom-layerstack > div:nth-child(4) {
    grid-template-columns: 1fr !important;
  }
  .grid-custom-layerstack > div:nth-child(5) {
    border-left: none !important;
    border-top: 1px dashed var(--line-strong) !important;
    padding-left: 0 !important;
    padding-top: 16px !important;
    margin-top: 8px !important;
  }
}

/* LayerStack section column header — must match grid-custom-layerstack columns */
.layerstack-header-row {
  display: grid !important;
  grid-template-columns: 60px 240px 1fr 280px;
  gap: 16px;
}
@media (max-width: 1000px) {
  .layerstack-header-row {
    display: none !important;
  }
}

/* Custom subpage "How it works" steps responsiveness */
.grid-custom-howitworks {
  display: grid;
  grid-template-columns: 60px 200px 1fr 220px;
  gap: 18px;
}
@media (max-width: 900px) {
  .grid-custom-howitworks {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
    padding: 24px 16px !important;
  }
  .grid-custom-howitworks > div:nth-child(4) {
    border-left: none !important;
    border-top: 1px dashed var(--line-strong) !important;
    padding-left: 0 !important;
    padding-top: 14px !important;
    margin-top: 6px !important;
  }
}

/* Mobile Navbar classes */
.desktop-only {
  display: flex !important;
}
.mobile-only {
  display: none !important;
}

@media (max-width: 900px) {
  .desktop-only {
    display: none !important;
  }
  .mobile-only {
    display: flex !important;
  }
}

/* Horizontal swipe-friendly tracker tab wrapper on mobile */
.tracker-tabs-scroll {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.tracker-tabs-scroll::-webkit-scrollbar {
  display: none;
}
.tracker-tabs-scroll button {
  white-space: nowrap;
  flex: 0 0 auto !important;
}

/* Premium full-screen mobile menu overlay */
.mobile-nav-drawer {
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 24px;
  overflow-y: auto;
  animation: slideDownMobileNav 0.3s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

@keyframes slideDownMobileNav {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-menu-item {
  font-family: "Space Grotesk", sans-serif;
  font-size: 20px;
  font-weight: 500;
  color: var(--ink);
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  text-align: left;
}

.mobile-menu-submenu {
  padding: 8px 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg-soft);
  border-radius: 8px;
  margin-top: 4px;
  margin-bottom: 12px;
  animation: fadeUpMobileNavSub 0.2s ease-out;
}

@keyframes fadeUpMobileNavSub {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-menu-sublink {
  display: block;
}
.mobile-menu-sublink-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}
.mobile-menu-sublink-desc {
  font-size: 12px;
  color: var(--dim);
  margin-top: 2px;
}