/* Architectural Studio - Charcoal Slate Theme CSS */

/* Root Variables & Base Styles */
:root {
  --primary: #2D3748;
  --secondary: #E2E8F0;
  --accent: #4A5568;
  --light: #F7FAFC;
  --dark: #1A202C;
  --text-primary: #2D3748;
  --text-secondary: #718096;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-primary) !important;
  background-color: #FFFFFF !important;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6, .display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 700 !important;
  color: var(--primary) !important;
  letter-spacing: -0.02em;
}

.display-3 {
  font-size: clamp(2.5rem, 5vw, 4.5rem) !important;
}

.display-4 {
  font-size: clamp(2rem, 4vw, 3.5rem) !important;
}

.display-5 {
  font-size: clamp(1.75rem, 3.5vw, 3rem) !important;
}

.display-6 {
  font-size: clamp(1.5rem, 3vw, 2.5rem) !important;
}

.lead {
  font-size: 1.25rem !important;
  color: var(--text-secondary) !important;
}

/* Navigation */
.navbar {
  background: rgba(45, 55, 72, 0.98) !important;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  z-index: 1030 !important;
}

.navbar.scrolled {
  background: rgba(45, 55, 72, 1) !important;
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.2);
  padding-top: 0.75rem !important;
  padding-bottom: 0.75rem !important;
}

.navbar-brand {
  font-size: 1.5rem !important;
  color: #FFFFFF !important;
  letter-spacing: 0.05em;
  transition: var(--transition);
}

.navbar-brand:hover {
  color: var(--secondary) !important;
  transform: translateY(-2px);
}

.nav-link {
  color: rgba(255, 255, 255, 0.85) !important;
  font-weight: 500 !important;
  padding: 0.5rem 1rem !important;
  position: relative;
  transition: var(--transition);
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: var(--transition);
  transform: translateX(-50%);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

.navbar-toggler {
  border: 2px solid rgba(255, 255, 255, 0.5) !important;
  padding: 0.5rem !important;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(226, 232, 240, 0.3) !important;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* Buttons */
.btn {
  font-weight: 600 !important;
  padding: 0.75rem 2rem !important;
  border-radius: 0.5rem !important;
  transition: var(--transition) !important;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none !important;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-lg {
  padding: 1rem 3rem !important;
  font-size: 1.1rem !important;
}

.btn-sm {
  padding: 0.5rem 1.5rem !important;
  font-size: 0.875rem !important;
}

.btn-primary,
.btn.btn-primary {
  background-color: var(--primary) !important;
  color: #FFFFFF !important;
  box-shadow: 0 4px 12px rgba(45, 55, 72, 0.3) !important;
}

.btn-primary:hover,
.btn.btn-primary:hover {
  background-color: var(--dark) !important;
  color: #FFFFFF !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 55, 72, 0.4) !important;
}

.btn-light,
.btn.btn-light {
  background-color: var(--secondary) !important;
  color: var(--primary) !important;
  box-shadow: 0 4px 12px rgba(226, 232, 240, 0.3) !important;
}

.btn-light:hover,
.btn.btn-light:hover {
  background-color: #CBD5E0 !important;
  color: var(--dark) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(226, 232, 240, 0.4) !important;
}

.btn-outline-dark,
.btn.btn-outline-dark {
  border: 2px solid var(--primary) !important;
  color: var(--primary) !important;
  background-color: transparent !important;
}

.btn-outline-dark:hover,
.btn.btn-outline-dark:hover,
.btn-outline-dark.active {
  background-color: var(--primary) !important;
  color: #FFFFFF !important;
  border-color: var(--primary) !important;
  transform: translateY(-2px);
}

.btn-outline-secondary,
.btn.btn-outline-secondary {
  border: 2px solid var(--secondary) !important;
  color: var(--primary) !important;
  background-color: transparent !important;
}

.btn-outline-secondary:hover,
.btn.btn-outline-secondary:hover {
  background-color: var(--secondary) !important;
  color: var(--primary) !important;
  border-color: var(--secondary) !important;
}

/* Hero Section */
.position-relative.h-100 {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.position-relative.h-100::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(45, 55, 72, 0.9), rgba(26, 32, 44, 0.8));
  z-index: 1;
}

.position-relative.h-100 img.object-fit-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
}

.position-absolute.top-50.start-50.translate-middle {
  z-index: 2 !important;
  animation: fadeInUp 1s ease-out;
}

.text-white {
  color: #FFFFFF !important;
}

.text-white h1,
.text-white h2,
.text-white h3,
.text-white .display-3,
.text-white .display-4 {
  color: #FFFFFF !important;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.text-white p,
.text-white .fs-4,
.text-white .fs-5 {
  color: rgba(255, 255, 255, 0.95) !important;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
}

/* Badges */
.badge {
  background-color: var(--secondary) !important;
  color: var(--primary) !important;
  font-weight: 600 !important;
  padding: 0.5rem 1rem !important;
  border-radius: 0.375rem !important;
  font-size: 0.875rem !important;
  letter-spacing: 0.05em;
}

/* Cards */
.card {
  border: none !important;
  border-radius: 1rem !important;
  overflow: hidden;
  transition: var(--transition) !important;
  background: #FFFFFF !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15) !important;
}

.card-img-top {
  border-radius: 0 !important;
  transition: var(--transition);
  height: 250px;
  object-fit: cover;
}

.card:hover .card-img-top {
  transform: scale(1.05);
}

.card-body {
  padding: 2rem !important;
}

.card-title {
  color: var(--primary) !important;
  font-weight: 700 !important;
  margin-bottom: 1rem !important;
  font-size: 1.25rem !important;
}

.card-text {
  color: var(--text-secondary) !important;
  line-height: 1.7 !important;
}

/* Project Grid */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.project-card {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  height: 400px;
  cursor: pointer;
  transition: var(--transition);
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(45, 55, 72, 0.95), transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

.project-card:hover img {
  transform: scale(1.1);
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2) !important;
}

.project-overlay h4,
.project-overlay h5 {
  color: #FFFFFF !important;
}

.project-overlay p {
  color: rgba(255, 255, 255, 0.9) !important;
}

/* Portfolio Item */
.portfolio-item,
.portfolio-card {
  border-radius: 1rem;
  overflow: hidden;
  transition: var(--transition);
  position: relative;
  background: #FFFFFF;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.portfolio-item:hover,
.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.portfolio-item img,
.portfolio-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: var(--transition);
}

.portfolio-item:hover img,
.portfolio-card:hover img {
  transform: scale(1.05);
}

/* Filter Buttons */
.filter-btn {
  transition: var(--transition) !important;
}

.filter-btn.active {
  background-color: var(--primary) !important;
  color: #FFFFFF !important;
  border-color: var(--primary) !important;
}

/* Forms */
.form-control,
.form-select {
  border: 2px solid var(--secondary) !important;
  border-radius: 0.5rem !important;
  padding: 0.875rem 1.25rem !important;
  font-size: 1rem !important;
  transition: var(--transition) !important;
  background-color: #FFFFFF !important;
  color: var(--text-primary) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 0.2rem rgba(45, 55, 72, 0.15) !important;
  background-color: #FFFFFF !important;
}

.form-label {
  font-weight: 600 !important;
  color: var(--primary) !important;
  margin-bottom: 0.75rem !important;
  font-size: 0.95rem !important;
}

.form-check-input {
  width: 1.25rem !important;
  height: 1.25rem !important;
  border: 2px solid var(--secondary) !important;
  cursor: pointer;
}

.form-check-input:checked {
  background-color: var(--primary) !important;
  border-color: var(--primary) !important;
}

.form-check-label {
  margin-left: 0.5rem;
  color: var(--text-primary) !important;
  cursor: pointer;
}

/* Background Utilities */
.bg-light {
  background-color: var(--light) !important;
}

.bg-white {
  background-color: #FFFFFF !important;
}

/* Text Utilities */
.text-muted {
  color: var(--text-secondary) !important;
}

.text-dark {
  color: var(--text-primary) !important;
}

.text-white-50 {
  color: rgba(255, 255, 255, 0.7) !important;
}

.text-decoration-none {
  text-decoration: none !important;
}

.text-decoration-none:hover {
  text-decoration: underline !important;
}

/* Icons */
.bi {
  display: inline-block;
  vertical-align: middle;
}

.bi-geo-alt-fill,
.bi-telephone-fill,
.bi-clock-fill,
.bi-send-fill,
.bi-telephone,
.bi-envelope,
.bi-linkedin,
.bi-instagram,
.bi-facebook,
.bi-check-circle-fill,
.bi-geo-alt,
.bi-brightness-high,
.bi-recycle,
.bi-speedometer2,
.bi-people,
.bi-lightning-charge,
.bi-tree,
.bi-droplet,
.bi-award {
  font-size: 1.25rem;
  color: var(--primary);
}

.text-white .bi {
  color: #FFFFFF !important;
}

/* Rounded Utilities */
.rounded {
  border-radius: 0.5rem !important;
}

.rounded-circle {
  border-radius: 50% !important;
}

/* Shadow Utilities */
.shadow-sm {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08) !important;
}

.shadow {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12) !important;
}

/* Opacity Utilities */
.opacity-25 {
  opacity: 0.25 !important;
}

.opacity-75 {
  opacity: 0.75 !important;
}

/* Modal */
.modal-content {
  border: none !important;
  border-radius: 1rem !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3) !important;
}

.modal-header {
  border-bottom: 1px solid var(--secondary) !important;
  padding: 1.5rem 2rem !important;
}

.modal-body {
  padding: 2rem !important;
}

.btn-close:focus {
  box-shadow: 0 0 0 0.2rem rgba(45, 55, 72, 0.15) !important;
}

/* Footer */
footer {
  background-color: var(--primary) !important;
  color: rgba(255, 255, 255, 0.9) !important;
  padding: 4rem 0 2rem !important;
}

footer h6,
footer .h6 {
  color: #FFFFFF !important;
  font-weight: 700 !important;
  margin-bottom: 1.5rem !important;
}

footer a {
  color: rgba(255, 255, 255, 0.8) !important;
  transition: var(--transition) !important;
  text-decoration: none !important;
}

footer a:hover {
  color: #FFFFFF !important;
  padding-left: 5px;
}

footer .list-unstyled li {
  margin-bottom: 0.75rem;
}

footer .bi {
  color: rgba(255, 255, 255, 0.8) !important;
  transition: var(--transition) !important;
}

footer a:hover .bi {
  color: #FFFFFF !important;
  transform: scale(1.2);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translate(-50%, -45%);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease-out;
}

.animate-slide-left {
  animation: slideInLeft 0.8s ease-out;
}

.animate-slide-right {
  animation: slideInRight 0.8s ease-out;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Loading State */
.loading {
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Images */
.img-fluid {
  max-width: 100%;
  height: auto;
}

.object-fit-cover {
  object-fit: cover;
  width: 100%;
  height: 100%;
}

/* Spacing Utilities */
.py-5 {
  padding-top: 4rem !important;
  padding-bottom: 4rem !important;
}

.my-5 {
  margin-top: 4rem !important;
  margin-bottom: 4rem !important;
}

.mt-5 {
  margin-top: 4rem !important;
}

/* Responsive Design */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(45, 55, 72, 0.98);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  }

  .navbar-nav {
    gap: 0.5rem !important;
  }

  .nav-link::after {
    display: none;
  }

  .display-3 {
    font-size: 2.5rem !important;
  }

  .display-4 {
    font-size: 2rem !important;
  }

  .project-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .btn-lg {
    padding: 0.875rem 2rem !important;
    font-size: 1rem !important;
  }

  .py-5 {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }

  .card-body {
    padding: 1.5rem !important;
  }
}

@media (max-width: 767.98px) {
  .display-3 {
    font-size: 2rem !important;
  }

  .fs-4 {
    font-size: 1rem !important;
  }

  .btn {
    padding: 0.625rem 1.5rem !important;
  }

  .project-card {
    height: 300px;
  }

  .modal-dialog {
    margin: 0.5rem;
  }

  .container-fluid {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
}

@media (max-width: 575.98px) {
  .display-3 {
    font-size: 1.75rem !important;
  }

  .navbar-brand {
    font-size: 1.25rem !important;
  }

  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    width: 100%;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .btn,
  footer {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

button:focus,
a:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background-color: var(--primary);
  color: #FFFFFF;
}

::-moz-selection {
  background-color: var(--primary);
  color: #FFFFFF;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--light);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--dark);
}

/* Smooth Transitions */
a,
button,
.btn,
.card,
.nav-link,
.form-control {
  transition: var(--transition);
}

/* Link Styles */
a {
  color: var(--primary) !important;
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--dark) !important;
}

/* List Styles */
.list-unstyled {
  padding-left: 0;
  list-style: none;
}

/* Position Utilities */
.position-sticky {
  position: sticky !important;
  top: 80px;
  z-index: 1020;
}

/* Flex Utilities */
.flex-grow-1 {
  flex-grow: 1 !important;
}

.flex-shrink-0 {
  flex-shrink: 0 !important;
}

/* Gap Utilities */
.gap-2 {
  gap: 0.5rem !important;
}

.gap-3 {
  gap: 1rem !important;
}

.gap-4 {
  gap: 1.5rem !important;
}

.gap-5 {
  gap: 3rem !important;
}

/* Grid Utilities */
.g-0 {
  --bs-gutter-x: 0 !important;
  --bs-gutter-y: 0 !important;
}

.g-3 {
  --bs-gutter-x: 1rem !important;
  --bs-gutter-y: 1rem !important;
}

.g-4 {
  --bs-gutter-x: 1.5rem !important;
  --bs-gutter-y: 1.5rem !important;
}

.g-5 {
  --bs-gutter-x: 3rem !important;
  --bs-gutter-y: 3rem !important;
}

/* Custom Utility Classes */
.hover-lift {
  transition: var(--transition);
}

.hover-lift:hover {
  transform: translateY(-5px);
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.border-0 {
  border: 0 !important;
}

/* Z-index Management */
.z-index-1 {
  z-index: 1;
}

.z-index-2 {
  z-index: 2;
}

.z-index-3 {
  z-index: 3;
}