/* ==========================================================================
   VISHAL JAMDHADE BUILDCON — INTERACTIVE COMPONENTS
   ========================================================================== */

/* --- 1. HEADER & NAVIGATION --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all var(--transition-smooth);
  background-color: transparent;
  padding: 1.15rem 0;
}

.site-header.scrolled {
  background-color: rgba(17, 17, 17, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(201, 168, 106, 0.22);
  padding: 0.7rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: clamp(0.75rem, 1.2vw, 1.75rem);
}

/* Brand Logo (Guaranteed Single Line) */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  z-index: 10;
  flex-shrink: 0;
  white-space: nowrap;
}

.logo-icon-svg {
  width: 32px;
  height: 32px;
  color: var(--gold-primary);
  flex-shrink: 0;
  filter: drop-shadow(0 2px 8px rgba(201, 168, 106, 0.35));
}

.brand-text-block {
  display: flex;
  flex-direction: column;
  white-space: nowrap;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: clamp(0.92rem, 1.05vw, 1.02rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: #FFFFFF;
  text-transform: uppercase;
  line-height: 1.1;
  white-space: nowrap;
}

.brand-title span {
  color: var(--gold-primary);
}

.brand-tagline {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: #A0A0A0;
  text-transform: uppercase;
  margin-top: 1px;
  white-space: nowrap;
}

/* Desktop Navigation Menu (Guaranteed Single Horizontal Line) */
.nav-menu {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: clamp(0.45rem, 0.95vw, 1.15rem);
  white-space: nowrap;
}

.nav-link {
  font-family: var(--font-body);
  font-size: clamp(0.72rem, 0.78vw, 0.8rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #CCCCCC;
  position: relative;
  padding: 0.3rem 0;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--gold-primary);
  transition: width var(--transition-smooth);
}

.nav-link:hover,
.nav-link.active {
  color: #FFFFFF;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 0.8vw, 1rem);
  flex-shrink: 0;
  white-space: nowrap;
}

/* Language Switcher (EN | मराठी) */
.lang-switch {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xs);
  padding: 2px;
  flex-shrink: 0;
  white-space: nowrap;
}

.lang-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.55rem;
  border-radius: 2px;
  color: #AAAAAA;
  transition: all var(--transition-fast);
}

/* --- TACTILE 3D CHECKBOX SYSTEM --- */
.checkbox-3d-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.checkbox-3d-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.checkbox-3d-box {
  position: relative;
  width: 24px;
  height: 24px;
  background: linear-gradient(145deg, #242424, #151515);
  border: 1.5px solid rgba(201, 168, 106, 0.45);
  border-radius: 6px;
  box-shadow: 
    0 4px 6px -1px rgba(0, 0, 0, 0.5),
    0 2px 4px -1px rgba(0, 0, 0, 0.3),
    inset 0 1px 1px rgba(255, 255, 255, 0.18),
    inset 0 -2px 4px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
  flex-shrink: 0;
}

/* 3D Checkbox Light Background Variant */
.checkbox-3d-box-light {
  background: linear-gradient(145deg, #F9F8F5, #E5E1D8);
  border-color: rgba(158, 123, 63, 0.45);
  box-shadow: 
    0 3px 6px rgba(0, 0, 0, 0.12),
    inset 0 1px 1px #FFFFFF,
    inset 0 -2px 3px rgba(0, 0, 0, 0.15);
}

/* Hover - 3D Elevation */
.checkbox-3d-wrap:hover .checkbox-3d-box {
  border-color: var(--gold-primary);
  transform: translateY(-2px);
  box-shadow: 
    0 6px 12px -2px rgba(0, 0, 0, 0.6),
    0 3px 6px -1px rgba(201, 168, 106, 0.3),
    inset 0 1px 1px rgba(255, 255, 255, 0.25);
}

/* Active - 3D Press Down Effect */
.checkbox-3d-wrap:active .checkbox-3d-box {
  transform: translateY(1px);
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.6),
    inset 0 2px 5px rgba(0, 0, 0, 0.8);
}

/* Checked - Glowing Champagne Gold */
.checkbox-3d-input:checked + .checkbox-3d-box {
  background: linear-gradient(145deg, #9E7B3F, #C9A86A);
  border-color: #E6D2A8;
  box-shadow: 
    0 2px 10px rgba(201, 168, 106, 0.55),
    inset 0 1px 2px rgba(255, 255, 255, 0.45),
    inset 0 -2px 3px rgba(0, 0, 0, 0.3);
  transform: translateY(0);
}

.checkbox-3d-icon {
  width: 13px;
  height: 13px;
  stroke: #111111;
  stroke-width: 2.8;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transform: scale(0) rotate(-15deg);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.checkbox-3d-input:checked + .checkbox-3d-box .checkbox-3d-icon {
  transform: scale(1) rotate(0deg);
}

.checkbox-3d-text {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  color: #DDDDDD;
  letter-spacing: 0.02em;
}

/* 3D Checkbox Interactive Cards */
.checkbox-3d-card {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  padding: 1.15rem 1.35rem;
  background: linear-gradient(145deg, #1b1b1b, #131313);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  cursor: pointer;
  position: relative;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 
    0 4px 10px rgba(0, 0, 0, 0.3),
    inset 0 1px 1px rgba(255, 255, 255, 0.05);
  user-select: none;
}

.checkbox-3d-card:hover {
  transform: translateY(-3px);
  border-color: rgba(201, 168, 106, 0.5);
  box-shadow: 
    0 10px 22px rgba(0, 0, 0, 0.4),
    0 0 15px rgba(201, 168, 106, 0.15);
}

.checkbox-3d-card:has(.checkbox-3d-input:checked) {
  border-color: var(--gold-primary);
  background: linear-gradient(145deg, #242017, #15130e);
  box-shadow: 
    0 6px 18px rgba(0, 0, 0, 0.45),
    0 0 20px rgba(201, 168, 106, 0.25);
}

.checkbox-3d-card-light {
  background: linear-gradient(145deg, #FFFFFF, #F8F6F0);
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 
    0 4px 12px rgba(0, 0, 0, 0.06),
    inset 0 1px 1px rgba(255, 255, 255, 0.8);
}

.checkbox-3d-card-light:hover {
  border-color: var(--gold-primary);
  box-shadow: 
    0 8px 20px rgba(0, 0, 0, 0.1),
    0 0 15px rgba(201, 168, 106, 0.2);
}

.checkbox-3d-card-light:has(.checkbox-3d-input:checked) {
  border-color: var(--gold-dark);
  background: linear-gradient(145deg, #FFFFFF, #FAF7F0);
  box-shadow: 
    0 6px 18px rgba(201, 168, 106, 0.22),
    inset 0 0 0 1px var(--gold-primary);
}

.checkbox-card-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.checkbox-card-info strong {
  font-size: 0.94rem;
  color: #FFFFFF;
}

.checkbox-3d-card-light .checkbox-card-info strong {
  color: var(--text-dark-title);
}

.checkbox-card-info span {
  font-size: 0.78rem;
  color: #888888;
  line-height: 1.4;
}

.checkbox-3d-card-light .checkbox-card-info span {
  color: var(--text-dark-muted);
}

.checkbox-3d-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 640px) {
  .checkbox-3d-grid {
    grid-template-columns: 1fr;
  }
}

/* 3D Layers Inspection Bar for 3D Studio */
.three-layers-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  background: rgba(17, 20, 26, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(83, 107, 120, 0.35);
  border-radius: var(--radius-xs);
  padding: 0.75rem 1.25rem;
  margin-top: 1.25rem;
}

.three-layers-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--cad-cyan);
  letter-spacing: 0.12em;
}

.lang-btn.active {
  background-color: var(--gold-primary);
  color: #111111;
  font-weight: 700;
}

/* Mobile Hamburger Toggle */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.mobile-nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: #FFFFFF;
  transition: all var(--transition-smooth);
}

.mobile-nav-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
  background-color: var(--gold-primary);
}

.mobile-nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-nav-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
  background-color: var(--gold-primary);
}

/* Mobile Navigation Drawer */
.mobile-nav-drawer {
  position: fixed;
  inset: 0;
  background: rgba(17, 17, 17, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.mobile-nav-drawer.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer-links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.mobile-drawer-link {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: #EAEAEA;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
}

.mobile-drawer-link:hover,
.mobile-drawer-link.active {
  color: var(--gold-primary);
  padding-left: 0.5rem;
}

.mobile-drawer-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* --- 2. BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-xs);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  white-space: nowrap;
}

.btn svg {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.btn:hover svg {
  transform: translateX(4px);
}

/* Primary Champagne Gold */
.btn-primary {
  background: var(--gold-primary);
  color: #111111;
  border: 1px solid var(--gold-primary);
  box-shadow: 0 4px 15px rgba(201, 168, 106, 0.25);
}

.btn-primary:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  box-shadow: 0 8px 25px rgba(201, 168, 106, 0.4);
  transform: translateY(-2px);
}

/* Outline Gold */
.btn-outline-gold {
  background: transparent;
  color: var(--gold-primary);
  border: 1px solid var(--gold-primary);
}

.btn-outline-gold:hover {
  background: var(--gold-primary);
  color: #111111;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 168, 106, 0.3);
}

/* Ghost / Transparent White */
.btn-outline-white {
  background: transparent;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
  border-color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

/* Dark Outline */
.btn-outline-dark {
  background: transparent;
  color: var(--text-dark-title);
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.btn-outline-dark:hover {
  border-color: #111111;
  background: #111111;
  color: #FFFFFF;
  transform: translateY(-2px);
}

/* Button Sizes */
.btn-sm {
  padding: 0.55rem 1.15rem;
  font-size: 0.78rem;
}

.btn-lg {
  padding: 1.05rem 2.25rem;
  font-size: 0.95rem;
}

/* --- 3. 3D WEBGL VIEWER HUD & CONTROLS --- */
.three-viewport-wrapper {
  position: relative;
  width: 100%;
  height: 520px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: radial-gradient(circle at center, #1b2028 0%, #0d0f12 100%);
  border: 1px solid rgba(83, 107, 120, 0.3);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.three-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* HUD Overlay Controls */
.three-hud-top {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
  z-index: 10;
}

.three-telemetry {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cad-cyan);
  background: rgba(13, 15, 18, 0.85);
  backdrop-filter: blur(8px);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

/* Mode Switcher Pill */
.three-mode-switcher {
  display: flex;
  background: rgba(13, 15, 18, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xs);
  padding: 4px;
  pointer-events: auto;
  gap: 4px;
}

.three-mode-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 0.45rem 0.95rem;
  border-radius: 2px;
  color: #AAAAAA;
  transition: all var(--transition-fast);
}

.three-mode-btn:hover {
  color: #FFFFFF;
}

.three-mode-btn.active {
  background-color: var(--gold-primary);
  color: #111111;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(201, 168, 106, 0.3);
}

/* Bottom HUD Controls */
.three-hud-bottom {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  pointer-events: none;
  z-index: 10;
}

.three-instructions {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #888888;
  background: rgba(13, 15, 18, 0.75);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.three-viewport-tools {
  display: flex;
  gap: 0.5rem;
  pointer-events: auto;
}

.three-tool-btn {
  width: 34px;
  height: 34px;
  background: rgba(13, 15, 18, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.three-tool-btn:hover {
  background: var(--gold-primary);
  color: #111111;
  border-color: var(--gold-primary);
}

/* 3D Hotspot HTML Callouts */
.hotspot-pin {
  position: absolute;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 12;
  transition: transform var(--transition-fast);
}

.hotspot-dot {
  width: 14px;
  height: 14px;
  background: var(--gold-primary);
  border: 2px solid #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(201, 168, 106, 0.8);
  position: relative;
}

.hotspot-dot::before {
  content: '';
  position: absolute;
  inset: -6px;
  border: 1px solid var(--gold-primary);
  border-radius: 50%;
  animation: pulse-ring 2s infinite;
}

.hotspot-label {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(17, 17, 17, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--gold-primary);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #FFFFFF;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.hotspot-pin:hover .hotspot-label,
.hotspot-pin.active .hotspot-label {
  opacity: 1;
  transform: translateY(-50%) translateX(4px);
}

/* Hotspot Detail Drawer Overlay */
.hotspot-detail-card {
  position: absolute;
  bottom: 4rem;
  right: 1.25rem;
  width: 320px;
  background: rgba(17, 17, 17, 0.95);
  backdrop-filter: blur(16px);
  border: 1px solid var(--gold-primary);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  z-index: 15;
  box-shadow: var(--shadow-deep);
  display: none;
  animation: fadeIn 0.3s ease;
}

.hotspot-detail-card.active {
  display: block;
}

.hotspot-card-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  color: #888888;
  font-size: 0.9rem;
  cursor: pointer;
}
.hotspot-card-close:hover {
  color: #FFFFFF;
}

/* --- 4. SERVICE CARDS --- */
.service-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light-subtle);
  border-radius: var(--radius-md);
  padding: 2.25rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  height: 100%;
}

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gold-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
  border-color: rgba(201, 168, 106, 0.4);
}

.service-card:hover::after {
  opacity: 1;
}

.service-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.service-code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gold-dark);
  letter-spacing: 0.1em;
  background: rgba(201, 168, 106, 0.12);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-xs);
}

.service-icon {
  font-size: 1.6rem;
  color: var(--steel-blue);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--text-dark-title);
  margin-bottom: 0.85rem;
  line-height: 1.3;
}

.service-desc {
  font-size: 0.92rem;
  color: var(--text-dark-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.service-deliverables {
  list-style: none;
  padding: 0;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.service-deliverables li {
  font-size: 0.84rem;
  color: #444444;
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  line-height: 1.45;
}

.service-deliverables li svg {
  width: 15px;
  height: 15px;
  color: var(--gold-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.service-card-action {
  margin-top: auto;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding-top: 1.25rem;
}

/* --- 5. INTERACTIVE BLUEPRINT TO BUILT SHOWCASE --- */
.showcase-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark-medium);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-deep);
}

.showcase-tabs-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #151515;
  border-bottom: 1px solid var(--border-dark-subtle);
}

.showcase-tab-btn {
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  background: transparent;
  color: #888888;
  border-right: 1px solid var(--border-dark-subtle);
  transition: all var(--transition-fast);
  text-align: center;
}

.showcase-tab-btn:last-child {
  border-right: none;
}

.showcase-tab-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold-primary);
  font-weight: 700;
}

.showcase-tab-text {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.showcase-tab-btn:hover {
  background: rgba(255, 255, 255, 0.02);
  color: #FFFFFF;
}

.showcase-tab-btn.active {
  background: rgba(201, 168, 106, 0.08);
  color: #FFFFFF;
  border-bottom: 2px solid var(--gold-primary);
}

.showcase-content-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 0;
}

.showcase-image-viewport {
  position: relative;
  min-height: 480px;
  background: #0A0A0A;
  overflow: hidden;
}

.showcase-image-viewport img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.3s ease, transform 0.6s ease;
}

.showcase-details-pane {
  padding: 3rem 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--bg-dark-card);
}

.showcase-stage-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gold-primary);
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.showcase-stage-title {
  font-size: 1.8rem;
  color: #FFFFFF;
  margin-bottom: 1rem;
  line-height: 1.25;
}

.showcase-stage-desc {
  font-size: 0.95rem;
  color: #A0A0A0;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.showcase-specs-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 2.25rem;
  border-top: 1px solid var(--border-dark-subtle);
  border-bottom: 1px solid var(--border-dark-subtle);
  padding: 1.5rem 0;
}

.showcase-spec-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.spec-key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #777777;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.spec-val {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  color: #E0E0E0;
}

/* --- 6. PROJECT PORTFOLIO CARDS & FILTER --- */
.portfolio-filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3.5rem;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.6rem 1.35rem;
  background: rgba(255, 255, 255, 0.04);
  color: #999999;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.3);
}

.filter-btn.active {
  background: var(--gold-primary);
  color: #111111;
  border-color: var(--gold-primary);
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(201, 168, 106, 0.3);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.project-card {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201, 168, 106, 0.4);
  box-shadow: var(--shadow-deep);
}

.project-img-box {
  position: relative;
  height: 320px;
  overflow: hidden;
  background: #0E0E0E;
}

.project-img-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-img-box img {
  transform: scale(1.04);
}

.project-category-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(17, 17, 17, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--gold-primary);
  color: var(--gold-light);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-xs);
}

.project-content-body {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-location {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--steel-blue-light);
  margin-bottom: 0.4rem;
  letter-spacing: 0.05em;
}

.project-card-title {
  font-size: 1.45rem;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
}

.project-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1rem;
  border-radius: var(--radius-xs);
  margin-bottom: 1.5rem;
}

.project-spec-item {
  font-size: 0.82rem;
  color: #888888;
}

.project-spec-item strong {
  color: #E0E0E0;
  display: block;
  font-size: 0.88rem;
  margin-top: 1px;
}

.project-card-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-dark-subtle);
  padding-top: 1.25rem;
}

.btn-view-case {
  color: var(--gold-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--transition-fast);
}

.btn-view-case:hover {
  color: var(--gold-light);
  gap: 0.75rem;
}

/* --- 7. CASE STUDY 10-STEP MODAL --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-container {
  background: #161616;
  border: 1px solid var(--border-gold-subtle);
  border-radius: var(--radius-md);
  width: 100%;
  max-width: 960px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
  transform: translateY(20px);
  transition: transform var(--transition-smooth);
}

.modal-overlay.active .modal-container {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xs);
  color: #FFFFFF;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--gold-primary);
  color: #111111;
}

/* 10-Step Timeline in Modal */
.case-steps-timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
  padding-left: 2rem;
  margin-top: 2rem;
}

.case-steps-timeline::before {
  content: '';
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 7px;
  width: 2px;
  background: linear-gradient(to bottom, var(--gold-primary), var(--steel-blue));
}

.case-step-item {
  position: relative;
}

.case-step-item::before {
  content: '';
  position: absolute;
  top: 6px;
  left: -2rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #161616;
  border: 2px solid var(--gold-primary);
}

.case-step-item h4 {
  font-size: 1.05rem;
  color: var(--gold-light);
  margin-bottom: 0.35rem;
}

.case-step-item p {
  font-size: 0.92rem;
  color: #BBBBBB;
  line-height: 1.6;
}

/* --- 8. PROJECT ESTIMATOR CALCULATOR --- */
.estimator-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light-medium);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 3rem);
  box-shadow: var(--shadow-medium);
}

.estimator-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
}

.calc-group {
  margin-bottom: 2rem;
}

.calc-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark-title);
  margin-bottom: 0.85rem;
}

.type-buttons-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.calc-type-btn {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.85rem 0.5rem;
  background: var(--bg-warm-white);
  border: 1px solid var(--border-light-medium);
  color: var(--text-dark-title);
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
  text-align: center;
}

.calc-type-btn:hover {
  border-color: var(--gold-primary);
}

.calc-type-btn.active {
  background: #161616;
  color: #FFFFFF;
  border-color: #161616;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Range Slider */
.calc-range-slider {
  width: 100%;
  height: 6px;
  background: #E5E5E5;
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
  margin: 1.25rem 0 0.5rem 0;
}

.calc-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gold-primary);
  border: 3px solid #FFFFFF;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.calc-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.value-pill {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--gold-dark);
  background: rgba(201, 168, 106, 0.15);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
}

/* Package Options */
.service-options-group {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.service-option-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-warm-white);
  border: 1px solid var(--border-light-medium);
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.service-option-item:hover {
  border-color: var(--gold-primary);
}

.service-option-item.selected {
  background: #FFFFFF;
  border-color: var(--gold-primary);
  box-shadow: 0 4px 15px rgba(201, 168, 106, 0.2);
}

.service-option-radio {
  margin-top: 4px;
  accent-color: var(--gold-primary);
}

/* Estimator Summary Box (Dark Consultation Box) */
.estimator-summary-box {
  background: #161616;
  border: 1px solid var(--border-gold-subtle);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-deep);
}

.summary-header h4 {
  font-size: 1.35rem;
  color: #FFFFFF;
  margin-bottom: 0.35rem;
}

.summary-header p {
  font-size: 0.82rem;
  color: #888888;
  margin-bottom: 1.75rem;
}

.summary-metric {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.metric-highlight {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--gold-primary);
}

.included-deliverables-list {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.included-deliverables-list li {
  font-size: 0.85rem;
  color: #CCCCCC;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.included-deliverables-list li svg {
  width: 16px;
  height: 16px;
  color: var(--gold-primary);
  flex-shrink: 0;
}

/* --- 9. FAQ ACCORDION --- */
.faq-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--border-light-medium);
  border-radius: var(--radius-xs);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--gold-primary);
}

.faq-question {
  width: 100%;
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-dark-title);
  text-align: left;
  background: transparent;
  cursor: pointer;
}

.faq-icon {
  font-size: 0.85rem;
  color: var(--gold-primary);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
}

.faq-answer-inner {
  padding: 0 1.75rem 1.75rem 1.75rem;
  font-size: 0.95rem;
  color: var(--text-dark-muted);
  line-height: 1.7;
}

/* --- 10. CONTACT FORM & SIDEBAR --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3.5rem;
}

.contact-form-card {
  background: #181818;
  border: 1px solid var(--border-dark-medium);
  border-radius: var(--radius-md);
  padding: clamp(1.75rem, 3vw, 3rem);
}

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

.form-group.full-width {
  grid-column: span 2;
}

.form-label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  color: #CCCCCC;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: #111111;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xs);
  padding: 0.85rem 1rem;
  color: #FFFFFF;
  font-size: 0.92rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 3px rgba(201, 168, 106, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 110px;
}

/* File Dropzone */
.file-dropzone {
  border: 2px dashed rgba(201, 168, 106, 0.35);
  border-radius: var(--radius-xs);
  padding: 1.5rem;
  text-align: center;
  background: rgba(201, 168, 106, 0.02);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.file-dropzone:hover {
  border-color: var(--gold-primary);
  background: rgba(201, 168, 106, 0.05);
}

.dropzone-icon {
  font-size: 1.6rem;
  margin-bottom: 0.4rem;
}

.dropzone-text {
  font-size: 0.85rem;
  color: #CCCCCC;
  font-weight: 500;
}

.dropzone-hint {
  font-size: 0.72rem;
  color: #777777;
  margin-top: 0.25rem;
}

.file-input-hidden {
  display: none;
}

/* Contact Details Sidebar */
.contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-info-card {
  background: #181818;
  border: 1px solid var(--border-dark-medium);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-detail-row {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.detail-icon-box {
  width: 44px;
  height: 44px;
  background: rgba(201, 168, 106, 0.12);
  border: 1px solid rgba(201, 168, 106, 0.3);
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.detail-text h5 {
  font-size: 0.82rem;
  color: #888888;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.detail-text p,
.detail-text a {
  font-size: 0.95rem;
  color: #FFFFFF;
  line-height: 1.5;
}

.map-embed-card {
  height: 240px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-dark-medium);
}

.map-embed-card iframe {
  width: 100%;
  height: 100%;
  border: none;
  filter: grayscale(80%) invert(90%) contrast(120%);
}

/* --- 11. FLOATING WHATSAPP & MOBILE STICKY BAR --- */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 58px;
  height: 58px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: transform var(--transition-fast);
}

.floating-whatsapp-btn:hover {
  transform: scale(1.1);
}

.floating-whatsapp-btn svg {
  width: 32px;
  height: 32px;
  fill: #FFFFFF;
}

.whatsapp-pulse {
  position: absolute;
  inset: -6px;
  border: 2px solid #25D366;
  border-radius: 50%;
  animation: pulse-ring 2s infinite;
}

/* Mobile Sticky Action Bar */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(17, 17, 17, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(201, 168, 106, 0.3);
  padding: 0.75rem 1rem;
  z-index: 998;
}

.mobile-sticky-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
}

.mobile-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.55rem 0.25rem;
  border-radius: var(--radius-xs);
  text-align: center;
}

.mobile-call-btn {
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
}

.mobile-wa-btn {
  background: rgba(37, 211, 102, 0.15);
  color: #25D366;
  border: 1px solid rgba(37, 211, 102, 0.3);
}

.mobile-quote-btn {
  background: var(--gold-primary);
  color: #111111;
}

/* Toast Alert Message */
.toast-msg {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: #1E1E1E;
  border: 1px solid var(--gold-primary);
  color: #FFFFFF;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-deep);
  display: none;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 3000;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* Responsive Overrides */
@media (max-width: 1024px) {
  .nav-menu {
    display: none;
  }
  .mobile-nav-toggle {
    display: flex;
  }
  .estimator-layout,
  .contact-grid,
  .showcase-content-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .showcase-image-viewport {
    min-height: 380px;
  }
}

@media (max-width: 768px) {
  .mobile-sticky-bar {
    display: block;
  }
  .floating-whatsapp-btn {
    bottom: 5rem;
    right: 1.25rem;
    width: 50px;
    height: 50px;
  }
  .showcase-tabs-bar {
    grid-template-columns: 1fr 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-group.full-width {
    grid-column: span 1;
  }
  .type-buttons-row {
    grid-template-columns: 1fr;
  }
}