/**
 * Bhairo Nest - Modular UI Components Stylesheet (components.css)
 * 3D Cards, Glassmorphic Panels, Perspective Transforms, Compact Hero Sections & Full-Page Canvas Backgrounds
 */

/* -----------------------------------------------------------------------------
   Full-Page 3D Canvas Background Visibility Across All Sections
   ----------------------------------------------------------------------------- */
#canvas-3d-bg {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  z-index: 0 !important;
  pointer-events: none !important;
  margin: 0 !important;
  padding: 0 !important;
  display: block !important;
}

body {
  position: relative !important;
  z-index: 1 !important;
  margin: 0 !important;
  padding: 0 !important;
  width: 100% !important;
  min-height: 100vh !important;
}

section, .section-padding, .footer {
  background-color: transparent !important;
  position: relative;
  z-index: 1;
}

/* -----------------------------------------------------------------------------
   Compact Hero Sections (Height Reduced by 60%)
   ----------------------------------------------------------------------------- */
.hero, .hero-section, .subpage-hero {
  position: relative;
  overflow: hidden;
  padding: 3.5rem 0 1.5rem 0 !important;
}

.subpage-title, .hero-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem) !important;
  margin-bottom: 0.75rem !important;
}

.subpage-desc, .hero-desc {
  font-size: 1rem !important;
  margin-bottom: 1.25rem !important;
}

/* -----------------------------------------------------------------------------
   1. 3D Elevation Cards & Parallax Tilt
   ----------------------------------------------------------------------------- */
.card-3d {
  perspective: 1000px;
  transform-style: preserve-3d;
  transition: transform var(--transition-fast), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card-3d:hover {
  box-shadow: var(--shadow-3d-hover);
  border-color: var(--accent-primary) !important;
}

/* Steady Card & Form Containers (Disabled 3D Motion) */
.no-tilt, .no-tilt *, form, .contact-form-section, .contact-form-wrapper {
  transform: none !important;
  transition: none !important;
  perspective: none !important;
}
.no-tilt:hover, .no-tilt *:hover, form:hover, .contact-form-wrapper:hover {
  transform: none !important;
}
.no-tilt::after, form::after, .contact-form-wrapper::after {
  display: none !important;
}

/* Fixed, Stable Contact Form Section Layout (Half-Screen Fixed Section - No Card Tilt) */
.contact-form-section {
  position: relative;
  z-index: 2;
  padding: 2rem 0 5rem 0;
}

.contact-form-wrapper,
#contact-form-card {
  background: var(--bg-surface) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius-lg) !important;
  padding: 3rem 2.5rem !important;
  box-shadow: var(--shadow-sm) !important;
  transform: none !important;
  transition: none !important;
  perspective: none !important;
}

.contact-form-wrapper:hover,
#contact-form-card:hover,
.contact-form-wrapper *,
#contact-form-card * {
  transform: none !important;
  transition: none !important;
  box-shadow: var(--shadow-sm) !important;
}

.contact-form-wrapper::after,
#contact-form-card::after {
  display: none !important;
  opacity: 0 !important;
}

/* Mouse Hover Dynamic Light Reflective Overlay */
.card-3d::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.12) 0%, transparent 60%);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card-3d:hover::after {
  opacity: 1;
}

/* -----------------------------------------------------------------------------
   2. Glassmorphism Panels
   ----------------------------------------------------------------------------- */
.glass-panel {
  background: var(--glass-bg) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-lg);
  transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

/* -----------------------------------------------------------------------------
   3. Typography & 3D Headings
   ----------------------------------------------------------------------------- */
.heading-3d {
  background: var(--heading-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

.tag-3d {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.95rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  color: var(--tag-text);
  box-shadow: var(--shadow-sm);
}

/* -----------------------------------------------------------------------------
   4. Buttons & Interactive Controls
   ----------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #ffffff !important;
  box-shadow: 0 4px 15px rgba(15, 118, 110, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 25px rgba(15, 118, 110, 0.45);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

/* -----------------------------------------------------------------------------
   5. Form Controls & Cascading Selects
   ----------------------------------------------------------------------------- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-control, .search-input-3d {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--input-text);
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.form-control:focus, .search-input-3d:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 20px rgba(15, 118, 110, 0.25);
}

/* -----------------------------------------------------------------------------
   6. Navigation & Sticky Navbar
   ----------------------------------------------------------------------------- */
.navbar-3d {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-nav);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 1rem 0;
  transition: all var(--transition-normal);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a {
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--accent-primary);
}

/* Navbar Dropdowns */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown:hover .dropdown-content {
  display: block !important;
  opacity: 1;
  transform: translateY(0);
}

.dropdown-content {
  display: none !important;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-surface) !important;
  min-width: 220px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  padding: 0.5rem 0;
  z-index: 100;
}

.dropdown-content a {
  padding: 0.65rem 1.2rem;
  display: block;
  color: var(--text-primary);
  font-size: 0.875rem;
}

.dropdown-content a:hover {
  background: var(--bg-secondary);
  color: var(--accent-primary);
}

/* -----------------------------------------------------------------------------
   7. Theme Switcher Toggle Button
   ----------------------------------------------------------------------------- */
.theme-toggle-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.15rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  transform: scale(1.1) rotate(15deg);
  border-color: var(--accent-primary);
}

/* ==============================================================================
   8. MOBILE RESPONSIVE UI SPECIFICATION (@media max-width: 991px & 768px)
   ============================================================================== */
.mobile-menu-btn {
  display: none;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1.35rem;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

@media (max-width: 991px) {
  .mobile-menu-btn {
    display: inline-flex !important;
  }

  .navbar-3d .container {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }

  /* Slide-Down Mobile Drawer Menu */
  .nav-links {
    display: none !important;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-surface) !important;
    border-bottom: 2px solid var(--border-color);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem;
    gap: 1rem !important;
    z-index: 9999;
  }

  .nav-links.mobile-open {
    display: flex !important;
  }

  .nav-links a {
    font-size: 1rem !important;
    width: 100%;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
  }

  .nav-links .dropdown {
    width: 100%;
  }

  .nav-links .dropdown-content {
    position: static;
    display: block !important;
    box-shadow: none;
    background: transparent !important;
    border: none;
    padding-left: 1rem;
  }

  .nav-links .dropdown-content a {
    border-bottom: none;
    font-size: 0.9rem !important;
    padding: 0.4rem 0;
  }

  /* Responsive Grid Adjustments for Cards & Sections */
  .grid {
    grid-template-columns: 1fr !important;
    gap: 1.5rem !important;
  }

  /* Compact Hero Sections on Mobile */
  .subpage-hero, .hero-section, .hero {
    padding: 2.25rem 1rem 1.25rem 1rem !important;
    text-align: center;
  }

  .subpage-title, .hero-title {
    font-size: clamp(1.6rem, 5.5vw, 2.2rem) !important;
    line-height: 1.3 !important;
  }

  .subpage-desc, .hero-desc {
    font-size: 0.925rem !important;
    line-height: 1.5 !important;
  }

  /* Responsive Cards & Glass Panels */
  .card, .card-3d, .glass-panel {
    padding: 1.5rem 1.25rem !important;
  }

  .card img {
    height: 180px !important;
  }

  /* Contact Form Section on Mobile */
  .contact-form-wrapper, #contact-form-card {
    padding: 1.75rem 1.25rem !important;
  }

  /* Portal Nav & Table Responsiveness */
  .portal-nav {
    padding: 1rem !important;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .portal-nav .nav-links {
    position: static;
    display: flex !important;
    flex-wrap: wrap;
    width: 100%;
    background: none !important;
    box-shadow: none;
    border: none;
    padding: 0;
    gap: 0.75rem !important;
  }

  .portal-nav .nav-links a {
    border-bottom: none;
  }

  .portal-container {
    padding: 0 1rem !important;
    margin: 1.5rem auto !important;
  }

  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  /* CTA Hide on Small Mobile Header to Prevent Overflow */
  .cta-proposal-btn {
    display: none !important;
  }
}

@media (max-width: 576px) {
  .subpage-title, .hero-title {
    font-size: 1.5rem !important;
  }

  .card img {
    height: 160px !important;
  }

  .brand-logo img {
    height: 38px !important;
  }
}