/* ==========================================================================
   CROWNATE CONSTRUCTION PROFESSIONAL SERVICES LIMITED (CCPSL)
   Quantity Surveying & BOQ Experience Engine - Page Stylesheet
   Architecture: Minimalist Monochrome Architectural Palette with Digital Cyan & Gold Accents
   Strictly Scoped: .qs- and .qs-boq- prefixes to preserve global template integrity
   ========================================================================== */

/* 1. HERO SECTION & 3D VISUALIZATION WRAPPER */
.qs-hero-section {
  background-color: var(--ccpsl-black);
  color: var(--ccpsl-white);
  border-bottom: 1px solid var(--ccpsl-border-dark);
  padding: clamp(1.5rem, 3vw, 2.25rem) 0 clamp(2rem, 4vw, 3rem) 0;
  position: relative;
  overflow: hidden;
}

.qs-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ccpsl-black);
  background: var(--ccpsl-white);
  padding: 0.35rem 0.85rem;
  margin-bottom: 1.25rem;
  border-radius: 0;
}

.qs-hero-badge .qs-pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #00d2d3;
  box-shadow: 0 0 8px #00d2d3;
  animation: qsPulse 2s infinite ease-in-out;
}

@keyframes qsPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.qs-hero-title {
  font-size: clamp(2.2rem, 5.2vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--ccpsl-white);
  margin-bottom: 0.65rem;
  max-width: 1050px;
}

.qs-hero-subtitle {
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  font-weight: 700;
  color: #00d2d3;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
}

.qs-hero-desc {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  line-height: 1.65;
  color: #c5c5c0;
  max-width: 880px;
  margin-bottom: 2rem;
}

.qs-hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 2.5rem;
}

/* 2. 3D QS & MEASUREMENT CANVAS STAGE */
.qs-3d-stage-wrapper,
.qs-canvas-container {
  position: relative;
  width: 100%;
  height: clamp(520px, 70vh, 740px);
  background: radial-gradient(circle at 50% 40%, #131b24 0%, #080d13 75%, #03060a 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  overflow: hidden;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6);
  user-select: none;
}

.qs-3d-canvas,
.qs-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none;
}

.qs-3d-canvas:active {
  cursor: grabbing;
}

/* Top HUD Telemetry */
.qs-hud-top {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  pointer-events: none;
  z-index: 10;
}

.qs-hud-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(10, 14, 20, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.35rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: #e0e0e0;
  backdrop-filter: blur(6px);
}

.qs-hud-status {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(10, 14, 20, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.35rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #fff;
  backdrop-filter: blur(6px);
}

/* Bottom Stage Controls */
.qs-stage-controls {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  z-index: 10;
}

.qs-mode-switcher {
  display: inline-flex;
  background: rgba(10, 14, 20, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 3px;
  gap: 3px;
  backdrop-filter: blur(6px);
  flex-wrap: wrap;
}

.qs-mode-btn {
  background: transparent;
  border: none;
  color: #aaa;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.qs-mode-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.qs-mode-btn.active {
  background: var(--ccpsl-white);
  color: var(--ccpsl-black);
}

.qs-camera-controls {
  display: inline-flex;
  gap: 4px;
}

.qs-cam-btn {
  background: rgba(10, 14, 20, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.45rem 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(6px);
}

.qs-cam-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.qs-cam-btn.active {
  background: #00d2d3;
  color: #000;
  border-color: #00d2d3;
}

/* Floating QS Measurement Inspector Card */
.qs-inspector-card {
  position: absolute;
  top: 4.25rem;
  right: 1rem;
  width: min(350px, calc(100% - 2rem));
  background: rgba(10, 15, 22, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 1.25rem;
  backdrop-filter: blur(10px);
  z-index: 15;
  transition: all 0.3s ease;
  display: none;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7);
}

.qs-inspector-card.open {
  display: block;
  animation: qsFadeIn 0.25s ease-out;
}

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

.qs-inspector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  padding-bottom: 0.5rem;
  margin-bottom: 0.75rem;
}

.qs-inspector-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: #00d2d3;
  text-transform: uppercase;
  font-weight: 700;
}

.qs-inspector-close {
  background: none;
  border: none;
  color: #999;
  font-size: 1.2rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.2rem;
}

.qs-inspector-close:hover {
  color: #fff;
}

.qs-inspector-title {
  font-size: 1.1rem;
  color: #fff;
  text-transform: uppercase;
  font-weight: 800;
  margin: 0 0 0.4rem 0;
  line-height: 1.2;
}

.qs-inspector-desc {
  font-size: 0.84rem;
  line-height: 1.5;
  color: #c0c0c0;
  margin: 0 0 0.85rem 0;
}

.qs-inspector-specs {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.qs-inspector-footer,
.qs-inspector-foot {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 0.5rem;
  color: #888;
}

/* 3. QUICK ELEMENT SELECTOR STRIP */
.qs-quick-systems-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1px;
  background: var(--ccpsl-border-dark);
  margin-top: 1.5rem;
  border: 1px solid var(--ccpsl-border-dark);
}

.qs-quick-system-btn {
  background: #111419;
  color: #bbb;
  border: none;
  padding: 1rem 1.15rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
}

.qs-quick-system-btn:hover,
.qs-quick-system-btn.active {
  background: #1a2533;
  color: #fff;
}

.qs-system-idx {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: #00d2d3;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.3rem;
  text-transform: uppercase;
}

.qs-system-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.qs-system-name {
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  display: block;
  color: #fff;
  line-height: 1.25;
}

.qs-system-role {
  font-size: 0.75rem;
  color: #888;
  display: block;
  margin-top: 0.25rem;
}

/* 4. GENERIC SECTION STYLING */
.qs-section {
  padding: clamp(3rem, 6vw, 4.75rem) 0;
  border-bottom: 1px solid var(--ccpsl-border-light);
}

.qs-section-dark {
  background: #090e15;
  color: var(--ccpsl-white);
  border-bottom: 1px solid var(--ccpsl-border-dark);
}

.qs-section-header {
  margin-bottom: clamp(1.75rem, 3.5vw, 2.75rem);
}

.qs-section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ccpsl-black);
  margin-bottom: 0.5rem;
}

.qs-section-dark .qs-section-eyebrow {
  color: #00d2d3;
}

.qs-section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-top: 0.25rem;
  margin-bottom: 0.75rem;
}

.qs-section-desc {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ccpsl-subtle-grey);
  max-width: 860px;
  margin: 0;
}

.qs-section-dark .qs-section-desc {
  color: #a0aab8;
}

/* 5. INTERACTIVE TABBED SWITCHERS & CONTAINERS */
.qs-tab-nav {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--ccpsl-border-light);
  padding-bottom: 1rem;
}

.qs-section-dark .qs-tab-nav {
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.qs-tab-btn {
  background: var(--ccpsl-offwhite);
  border: 1px solid var(--ccpsl-border-light);
  color: var(--ccpsl-black);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  padding: 0.65rem 1.15rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.qs-tab-btn:hover {
  background: #fff;
  border-color: var(--ccpsl-black);
}

.qs-tab-btn.active {
  background: var(--ccpsl-black);
  color: #fff;
  border-color: var(--ccpsl-black);
}

.qs-section-dark .qs-tab-btn {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.18);
  color: #ccc;
}

.qs-section-dark .qs-tab-btn:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}

.qs-section-dark .qs-tab-btn.active {
  background: #00d2d3;
  color: #000;
  border-color: #00d2d3;
}

.qs-interactive-card {
  background: var(--ccpsl-white);
  border: 1px solid var(--ccpsl-border-light);
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  animation: qsFadeIn 0.3s ease-out;
}

.qs-section-dark .qs-interactive-card {
  background: #0f1622;
  border-color: #1f2e42;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
  color: #fff;
}

.qs-two-col-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  align-items: start;
}

@media (min-width: 992px) {
  .qs-two-col-layout {
    grid-template-columns: 1.35fr 1fr;
  }
}

.qs-specs-box {
  background: var(--ccpsl-offwhite);
  border: 1px solid var(--ccpsl-border-light);
  padding: 1.5rem;
}

.qs-section-dark .qs-specs-box {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.1);
}

.qs-metric-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  font-size: 0.84rem;
}

.qs-section-dark .qs-metric-row {
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.qs-metric-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #888;
}

.qs-metric-val {
  font-weight: 700;
  color: var(--ccpsl-black);
}

.qs-section-dark .qs-metric-val {
  color: #fff;
}

/* 6. BOQ INTERACTIVE TABLE */
.qs-boq-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin-top: 1.5rem;
  border: 1px solid var(--ccpsl-border-light);
}

.qs-section-dark .qs-boq-table-wrap {
  border-color: rgba(255, 255, 255, 0.12);
}

.qs-boq-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  min-width: 680px;
}

.qs-boq-table th, .qs-boq-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--ccpsl-border-light);
  text-align: left;
}

.qs-section-dark .qs-boq-table th,
.qs-section-dark .qs-boq-table td {
  border-bottom-color: rgba(255, 255, 255, 0.09);
}

.qs-boq-table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--ccpsl-subtle-grey);
  background: rgba(0, 0, 0, 0.02);
}

.qs-section-dark .qs-boq-table th {
  background: rgba(255, 255, 255, 0.04);
  color: #00d2d3;
}

/* 7. INTERACTIVE COST CALCULATOR */
.qs-calc-box {
  background: #0f1622;
  border: 1px solid #1f2e42;
  padding: 1.75rem;
  color: #fff;
  margin-top: 1.5rem;
}

.qs-calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  align-items: end;
  margin-bottom: 1.5rem;
}

.qs-calc-field label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  color: #8892b0;
  display: block;
  margin-bottom: 0.4rem;
}

.qs-calc-field input, .qs-calc-field select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
}

.qs-calc-result-box {
  background: rgba(0, 210, 211, 0.08);
  border: 1px solid #00d2d3;
  padding: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.qs-calc-result-val {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 800;
  color: #00d2d3;
}

/* 8. SERVICES GRID */
.qs-services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.qs-service-card {
  background: var(--ccpsl-white);
  border: 1px solid var(--ccpsl-border-light);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.25s ease;
}

.qs-service-card:hover {
  border-color: var(--ccpsl-black);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}

.qs-service-num {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ccpsl-black);
  margin-bottom: 0.75rem;
  display: block;
}

.qs-service-title {
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  margin: 0 0 0.65rem 0;
  line-height: 1.25;
}

.qs-service-text {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--ccpsl-subtle-grey);
  margin: 0 0 1.25rem 0;
}

.qs-service-deliverable {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #333;
  background: var(--ccpsl-offwhite);
  border: 1px solid var(--ccpsl-border-light);
  padding: 0.5rem 0.75rem;
  line-height: 1.4;
}

.qs-service-deliverable span {
  font-weight: 800;
  color: var(--ccpsl-black);
}

/* 9. NEWS & INTELLIGENCE */
.qs-news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.qs-news-card {
  background: #0f1622;
  border: 1px solid #1f2e42;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.2s ease;
}

.qs-news-card:hover {
  border-color: #00d2d3;
  transform: translateY(-2px);
}

.qs-news-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #8892b0;
  margin-bottom: 0.5rem;
}

.qs-news-category {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  color: #00d2d3;
  background: rgba(0, 210, 211, 0.08);
  padding: 0.2rem 0.5rem;
  margin-bottom: 0.75rem;
}

.qs-news-headline {
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
  margin: 0 0 0.5rem 0;
}

.qs-news-summary {
  font-size: 0.85rem;
  line-height: 1.55;
  color: #a0aab8;
  margin: 0 0 1.25rem 0;
}

.qs-news-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: #00d2d3;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.qs-news-link:hover {
  color: #fff;
}

/* 10. PROJECT FORM & CONFIRMATION */
.qs-form-container {
  max-width: 860px;
  margin: 0 auto;
  background: var(--ccpsl-white);
  border: 1px solid var(--ccpsl-border-light);
  padding: clamp(1.75rem, 4vw, 3rem);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

.qs-form-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .qs-form-grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.qs-form-field {
  display: flex;
  flex-direction: column;
}

.qs-form-field.full-width {
  grid-column: 1 / -1;
}

.qs-form-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--ccpsl-black);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.qs-form-input,
.qs-form-select,
.qs-form-textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  border: 1px solid var(--ccpsl-border-light);
  background: var(--ccpsl-offwhite);
  color: var(--ccpsl-black);
  transition: all 0.2s ease;
}

.qs-form-input:focus,
.qs-form-select:focus,
.qs-form-textarea:focus {
  outline: none;
  border-color: var(--ccpsl-black);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.qs-ref-box {
  background: #f0fdf4;
  border: 1px solid #86efac;
  padding: 1.5rem;
  margin-bottom: 2rem;
  display: none;
}

.qs-ref-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  color: #166534;
}

.qs-ref-code {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 800;
  color: #166534;
  letter-spacing: 0.05em;
  margin: 0.5rem 0 1rem 0;
}

/* 11. ACCESSIBILITY & PREFERS-REDUCED-MOTION */
@media (prefers-reduced-motion: reduce) {
  .qs-hero-badge .qs-pulse-dot,
  .qs-inspector-card {
    animation: none !important;
    transition: none !important;
  }
}