/* =========================================================
   NASDAN — Data Analytics & BI page
   Dominant visual metaphor: Analytics Dashboard
   (Data Sources → Data Layer → Analytics → Dashboard → Decision)
   Extends tokens.css / main.css. Section-specific styles only.
   ========================================================= */

/* =========================================================
   1. HERO — dashboard mockup, two-column
   ========================================================= */
.dab-hero { position: relative; padding-block: var(--sp-9) var(--sp-8); background: var(--white); border-bottom: 1px solid var(--ink-100); overflow: hidden; }
.dab-hero-grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: var(--sp-8); align-items: center; }
.dab-hero-eyebrow { display: inline-flex; align-items: center; gap: var(--sp-2); margin-bottom: var(--sp-3); }
.dab-hero-headline {
  font-size: var(--fs-h1); font-weight: var(--fw-light); letter-spacing: var(--ls-tight);
  line-height: var(--lh-tight); color: var(--ink-900); margin-bottom: var(--sp-4); max-width: 16ch;
}
.dab-hero-lead { font-size: var(--fs-body); max-width: 46ch; margin-bottom: var(--sp-6); color: var(--ink-500); }
.dab-hero-actions { display: flex; gap: var(--sp-3); flex-wrap: wrap; }

/* --- dashboard mockup --- */
.dab-dash-card { background: var(--white); border: 1px solid var(--ink-200); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden; }
.dab-dash-head { display: flex; align-items: center; gap: 6px; padding: var(--sp-3) var(--sp-4); border-bottom: 1px solid var(--ink-100); background: var(--cloud); }
.dab-dash-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-200); }
.dab-dash-title { margin-left: auto; font-size: 0.75rem; color: var(--ink-400); font-weight: var(--fw-medium); }
.dab-dash-body { padding: var(--sp-5); }
.dab-dash-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-4); margin-bottom: var(--sp-5); }
.dab-kpi { display: flex; flex-direction: column; gap: 0.2rem; }
.dab-kpi-label { font-size: 0.6875rem; font-weight: var(--fw-semibold); letter-spacing: var(--ls-wide); text-transform: uppercase; color: var(--ink-400); }
.dab-kpi-value { font-size: 1.25rem; font-weight: var(--fw-light); color: var(--ink-900); letter-spacing: var(--ls-tight); }
.dab-kpi-trend { font-size: 0.75rem; font-weight: var(--fw-medium); color: #1f9d55; }
.dab-kpi-trend--down { color: #1f9d55; }
.dab-dash-chart { display: flex; align-items: flex-end; gap: 8px; height: 110px; padding-top: var(--sp-4); border-top: 1px solid var(--ink-100); }
.dab-dash-chart span { flex: 1; height: var(--h); border-radius: 4px 4px 0 0; background: var(--nasdan-navy-600); }
.dab-dash-chart span:last-child { background: var(--nasdan-amber); }

/* =========================================================
   2. PROOF BAND
   ========================================================= */
.dab-proof { padding-block: var(--sp-7); background: var(--cloud); border-bottom: 1px solid var(--ink-100); }
.dab-proof-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }
.dab-proof-item { display: flex; flex-direction: column; gap: 0.35rem; border-left: 1px solid var(--ink-200); padding-left: var(--sp-4); }
.dab-proof-item:first-child { border-left: none; padding-left: 0; }
.dab-proof-item strong { font-size: 1.0625rem; font-weight: var(--fw-medium); color: var(--nasdan-navy); }
.dab-proof-item span { font-size: 0.8438rem; color: var(--ink-500); }

/* =========================================================
   3. OUR DATA ANALYTICS EXPERTISE — horizontal tabs, two-column panel
   ========================================================= */
.dab-expertise { padding-block: var(--section-pad-y); }
.dab-expertise-tabs { display: flex; gap: var(--sp-2); flex-wrap: wrap; margin-top: var(--sp-8); border-bottom: 1px solid var(--ink-200); }
.dab-expertise-tab {
  font-family: var(--font-sans); font-size: 0.9375rem; font-weight: var(--fw-medium); color: var(--ink-500);
  background: none; border: none; padding: var(--sp-3) var(--sp-4); cursor: pointer; position: relative;
  border-bottom: 2px solid transparent; margin-bottom: -1px; transition: color var(--dur-base) var(--ease-out);
}
.dab-expertise-tab:hover { color: var(--ink-900); }
.dab-expertise-tab.is-active { color: var(--nasdan-navy); border-bottom-color: var(--nasdan-amber); }

.dab-expertise-panels { margin-top: var(--sp-8); }
.dab-expertise-panel { display: none; }
.dab-expertise-panel.is-active { display: block; animation: dabPanelFade 0.35s var(--ease-out); }
@keyframes dabPanelFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.dab-expertise-panel-grid { display: grid; grid-template-columns: 0.7fr 1.3fr; gap: var(--sp-9); align-items: start; }
.dab-expertise-panel-copy h3 { font-size: 1.6rem; font-weight: var(--fw-light); letter-spacing: var(--ls-tight); color: var(--ink-900); margin-bottom: var(--sp-3); max-width: 18ch; }
.dab-expertise-panel-copy p { color: var(--ink-500); line-height: var(--lh-relaxed); }

.dab-expertise-panel-list { display: grid; grid-template-columns: 1fr 1fr; column-gap: var(--sp-7); row-gap: var(--sp-5); }
.dab-expertise-item { position: relative; padding-left: var(--sp-5); }
.dab-expertise-item::before {
  content: ""; position: absolute; left: 0; top: 0.5em; width: 8px; height: 8px; border-radius: 50%; background: var(--nasdan-amber);
}
.dab-expertise-item strong { display: block; font-size: 0.9375rem; font-weight: var(--fw-medium); color: var(--ink-900); margin-bottom: 0.3rem; }
.dab-expertise-item p { font-size: 0.875rem; color: var(--ink-500); line-height: var(--lh-relaxed); }

/* --- shared inline CTA row, reused across sections --- */
.dab-inline-cta {
  margin-top: var(--sp-8); display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4);
  padding: var(--sp-5) var(--sp-6); background: var(--white); border: 1px solid var(--ink-200); border-radius: var(--radius-md);
  flex-wrap: wrap;
}
.dab-inline-cta span:first-child { font-size: 0.9375rem; font-weight: var(--fw-medium); color: var(--ink-900); }
.dab-inline-cta--dark { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.14); }
.dab-inline-cta--dark span:first-child { color: var(--white); }

/* =========================================================
   3b. DATA STACK — five stacked layers
   ========================================================= */
.dab-stack { padding-block: var(--section-pad-y); }
.dab-layers { margin-top: var(--sp-7); max-width: 820px; margin-inline: auto; display: flex; flex-direction: column; }
.dab-layer {
  display: grid; grid-template-columns: 80px 1fr; gap: var(--sp-5); align-items: center;
  padding: var(--sp-5) var(--sp-6); border: 1px solid var(--ink-200); border-bottom: none;
  background: var(--white); transition: background-color var(--dur-base) var(--ease-out);
}
.dab-layer:first-child { border-radius: var(--radius-md) var(--radius-md) 0 0; }
.dab-layer:last-child { border-bottom: 1px solid var(--ink-200); border-radius: 0 0 var(--radius-md) var(--radius-md); }
.dab-layer:hover { background: var(--cloud); }
.dab-layer--final { background: var(--nasdan-navy); border-color: var(--nasdan-navy); }
.dab-layer--final:hover { background: var(--nasdan-navy-700); }
.dab-layer-tag { font-size: 1.5rem; font-weight: var(--fw-light); color: var(--ink-200); letter-spacing: var(--ls-tight); }
.dab-layer--final .dab-layer-tag { color: var(--nasdan-amber); }
.dab-layer h3 { font-size: 1.0625rem; font-weight: var(--fw-medium); color: var(--ink-900); margin-bottom: 0.3rem; }
.dab-layer--final h3 { color: var(--white); }
.dab-layer p { color: var(--ink-500); font-size: 0.9375rem; }
.dab-layer--final p { color: var(--paper-300); }

/* =========================================================
   4. WHAT WE BUILD — navy section
   ========================================================= */
.dab-build { padding-block: var(--section-pad-y); background: var(--nasdan-navy); }
.dab-build-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5); margin-top: var(--sp-7); }
.dab-build-item { border-top: 2px solid var(--nasdan-amber); padding-top: var(--sp-4); }
.dab-build-item h3 { font-size: 1.0625rem; font-weight: var(--fw-medium); color: var(--white); margin-bottom: var(--sp-2); }
.dab-build-item p { color: var(--paper-300); font-size: 0.9375rem; }

/* =========================================================
   5. OUR TECHNOLOGY STACK — categorized chip rows
   ========================================================= */
.dab-techstack { padding-block: var(--section-pad-y); background: var(--cloud); }
.dab-tech-list { margin-top: var(--sp-8); border-top: 1px solid var(--ink-200); }
.dab-tech-row {
  display: grid; grid-template-columns: 240px 1fr; gap: var(--sp-6); align-items: center;
  padding-block: var(--sp-5); border-bottom: 1px solid var(--ink-200);
}
.dab-tech-label { font-size: 1.0625rem; font-weight: var(--fw-medium); color: var(--nasdan-navy); }
.dab-tech-chips { display: flex; flex-wrap: wrap; gap: var(--sp-3); }
.dab-tech-chip {
  font-size: 0.8438rem; font-weight: var(--fw-medium); color: var(--ink-700); background: var(--white);
  border: 1px solid var(--ink-200); border-radius: var(--radius-pill); padding: 0.4rem 0.9rem;
  transition: border-color var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
}
.dab-tech-row:hover .dab-tech-chip { border-color: var(--ink-200); }
.dab-tech-chip:hover { border-color: var(--nasdan-amber); color: var(--nasdan-navy); }

/* =========================================================
   6. SOLUTIONS BY INDUSTRY — navy card grid
   ========================================================= */
.dab-industries { padding-block: var(--section-pad-y); background: var(--nasdan-navy); }
.dab-industries-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--sp-4); margin-top: var(--sp-8); }
.dab-industry-card {
  display: flex; flex-direction: column; gap: var(--sp-3); padding: var(--sp-5); border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.14); background: rgba(255,255,255,0.03); text-decoration: none;
  transition: background-color var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}
.dab-industry-card:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,193,7,0.4); }
.dab-industry-card strong { font-size: 0.9375rem; font-weight: var(--fw-medium); color: var(--white); }
.dab-industry-card p { font-size: 0.8125rem; color: var(--paper-300); line-height: var(--lh-relaxed); flex: 1; }
.dab-industry-link { display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.8125rem; font-weight: var(--fw-medium); color: var(--nasdan-amber); }
.dab-industry-link svg { width: 14px; height: 14px; transition: transform var(--dur-base) var(--ease-out); }
.dab-industry-card:hover .dab-industry-link svg { transform: translateX(3px); }

/* =========================================================
   7. WHY CHOOSE NASDAN — numbered reason row
   ========================================================= */
.dab-why { padding-block: var(--section-pad-y); }
.dab-why-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); margin-top: var(--sp-7); }
.dab-why-item { border-top: 2px solid var(--nasdan-amber); padding-top: var(--sp-4); }
.dab-why-num { display: block; font-size: 0.75rem; font-weight: var(--fw-semibold); color: var(--ink-400); letter-spacing: var(--ls-wide); margin-bottom: var(--sp-3); }
.dab-why-item h3 { font-size: 1.0625rem; font-weight: var(--fw-medium); color: var(--ink-900); margin-bottom: var(--sp-2); }
.dab-why-item p { color: var(--ink-500); font-size: 0.9375rem; line-height: var(--lh-relaxed); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1199.98px) {
  .dab-hero-grid { grid-template-columns: 1fr; gap: var(--sp-7); }
  .dab-proof-row { grid-template-columns: repeat(2, 1fr); row-gap: var(--sp-5); }
  .dab-proof-item:nth-child(3) { border-left: none; padding-left: 0; }
  .dab-build-grid { grid-template-columns: 1fr 1fr; row-gap: var(--sp-6); }

  .dab-expertise-panel-grid { grid-template-columns: 1fr; gap: var(--sp-6); }
  .dab-expertise-panel-copy h3 { max-width: none; }

  .dab-tech-row { grid-template-columns: minmax(0, 1fr); gap: var(--sp-3); }

  .dab-industries-grid { grid-template-columns: repeat(3, 1fr); row-gap: var(--sp-4); }

  .dab-why-row { grid-template-columns: 1fr 1fr; row-gap: var(--sp-6); }
}

@media (max-width: 767.98px) {
  .dab-hero { padding-block: var(--sp-8) var(--sp-6); }
  .dab-hero-headline { max-width: 100%; font-size: clamp(1.75rem, 1.5rem + 2.2vw, 2.25rem); }
  .dab-hero-actions { flex-direction: column; align-items: stretch; }
  .dab-dash-kpis { grid-template-columns: 1fr 1fr; row-gap: var(--sp-3); }

  .dab-proof-row { grid-template-columns: 1fr; }
  .dab-proof-item { border-left: none; border-top: 1px solid var(--ink-200); padding-left: 0; padding-top: var(--sp-4); }
  .dab-proof-item:first-child { border-top: none; padding-top: 0; }

  .dab-expertise-tabs { overflow-x: auto; flex-wrap: nowrap; }
  .dab-expertise-tab { white-space: nowrap; }
  .dab-expertise-panel-list { grid-template-columns: minmax(0, 1fr); row-gap: var(--sp-4); }

  .dab-inline-cta { flex-direction: column; align-items: stretch; text-align: center; }
  .dab-inline-cta .btn-link-nasdan { justify-content: center; }

  .dab-layer { grid-template-columns: 48px 1fr; gap: var(--sp-3); padding: var(--sp-4); }
  .dab-layer-tag { font-size: 1.125rem; }

  .dab-build-grid { grid-template-columns: 1fr; }

  .dab-tech-row { padding-block: var(--sp-4); }
  .dab-tech-label { font-size: 0.9375rem; }

  .dab-industries-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 430.98px) {
  .dab-industries-grid { grid-template-columns: minmax(0, 1fr); }

  .dab-why-row { grid-template-columns: minmax(0, 1fr); }
}