/* Architecture Studio Theme - Professional Blue & Amber */

:root {
  --primary-color: #1565C0;
  --secondary-color: #FFC107;
  --primary-dark: #0D47A1;
  --primary-light: #42A5F5;
  --secondary-dark: #FFA000;
  --secondary-light: #FFD54F;
  --text-dark: #212529;
  --text-light: #6c757d;
  --bg-light: #f8f9fa;
  --white: #ffffff;
  --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Navbar Styles */
.navbar {
  padding: 1rem 0;
  transition: var(--transition);
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%) !important;
  z-index: 1000;
}

.navbar.sticky-top {
  box-shadow: var(--shadow);
}

.navbar-brand {
  font-size: 1.5rem;
  color: var(--white) !important;
  transition: var(--transition);
  font-weight: 700 !important;
}

.navbar-brand:hover {
  color: var(--secondary-color) !important;
  transform: scale(1.05);
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  padding: 0.5rem 1rem !important;
  margin: 0 0.25rem;
  transition: var(--transition);
  font-weight: 500;
  position: relative;
}

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

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
  color: var(--secondary-color) !important;
}

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

.navbar-toggler {
  border-color: var(--secondary-color) !important;
  color: var(--white) !important;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.25rem rgba(255, 193, 7, 0.25) !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='%23FFC107' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* Hero Section */
.position-relative.overflow-hidden {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 50%, var(--primary-light) 100%);
  position: relative;
}

.position-relative.overflow-hidden::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><rect fill="%231565C0" width="1200" height="600"/><g fill-opacity="0.1"><polygon fill="%23FFC107" points="1200 0 800 600 1200 600"/><polygon fill="%23FFD54F" points="0 600 400 0 0 0"/></g></svg>');
  background-size: cover;
  opacity: 0.3;
  animation: heroBackground 20s ease-in-out infinite;
}

@keyframes heroBackground {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.display-3, .display-4, .display-5, .display-6 {
  font-weight: 700 !important;
  color: var(--text-dark);
}

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

.text-muted {
  color: var(--text-light) !important;
}

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

.lead {
  font-size: 1.25rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.95) !important;
}

/* Buttons */
.btn {
  font-weight: 600 !important;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: var(--transition);
  border: none;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.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;
  z-index: -1;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%) !important;
  color: var(--white) !important;
  border: 2px solid transparent !important;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%) !important;
  color: var(--white) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-outline-light:hover {
  background: var(--white) !important;
  color: var(--primary-color) !important;
  border-color: var(--white) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%) !important;
  color: var(--text-dark) !important;
  border: none !important;
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--secondary-dark) 0%, var(--secondary-color) 100%) !important;
  color: var(--white) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-light {
  background: var(--white) !important;
  color: var(--primary-color) !important;
  border: 2px solid var(--white) !important;
}

.btn-light:hover {
  background: transparent !important;
  color: var(--white) !important;
  border-color: var(--white) !important;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2.5rem !important;
  font-size: 1rem !important;
}

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

.filter-btn {
  background: var(--bg-light) !important;
  color: var(--text-dark) !important;
  border: 2px solid transparent !important;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-color) !important;
  color: var(--white) !important;
  border-color: var(--primary-color) !important;
}

/* Cards */
.card {
  border: none !important;
  border-radius: 12px !important;
  transition: var(--transition);
  overflow: hidden;
  background: var(--white);
}

.card.shadow-sm {
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

.card.shadow {
  box-shadow: var(--shadow) !important;
}

.card.shadow-lg {
  box-shadow: var(--shadow-lg) !important;
}

.card.hover-lift:hover {
  transform: translateY(-10px);
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.2) !important;
}

.card-body {
  padding: 2rem;
}

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

.card-text {
  color: var(--text-light) !important;
  line-height: 1.8;
}

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

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

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

.bi-buildings,
.bi-bounding-box-circles,
.bi-music-note-beamed,
.bi-soundwave,
.bi-tree,
.bi-grid-3x3,
.bi-building,
.bi-info-circle,
.bi-clipboard-check,
.bi-shield-check,
.bi-people,
.bi-cookie,
.bi-hand-thumbs-up,
.bi-clock-history,
.bi-link-45deg,
.bi-arrow-repeat,
.bi-envelope,
.bi-chat-dots,
.bi-geo-alt,
.bi-telephone,
.bi-clock,
.bi-send,
.bi-calendar-check,
.bi-people-fill,
.bi-award-fill,
.bi-droplet-fill,
.bi-trophy-fill,
.bi-calendar3,
.bi-geo-alt-fill,
.bi-telephone-fill,
.bi-envelope-fill,
.bi-facebook,
.bi-twitter,
.bi-linkedin,
.bi-instagram,
.bi-arrow-right,
.bi-arrow-up {
  color: var(--primary-color);
  transition: var(--transition);
}

.fs-1 { font-size: 3rem !important; }
.fs-3 { font-size: 1.75rem !important; }
.fs-4 { font-size: 1.5rem !important; }
.fs-5 { font-size: 1.25rem !important; }
.fs-6 { font-size: 1rem !important; }

.text-center .bi,
.card-body .bi {
  color: var(--secondary-color);
}

.card:hover .bi {
  transform: scale(1.1);
  color: var(--primary-color);
}

/* Badge */
.badge {
  background: var(--secondary-color) !important;
  color: var(--text-dark) !important;
  padding: 0.5rem 1rem;
  font-weight: 600 !important;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 50px;
}

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

.bg-white {
  background-color: var(--white) !important;
}

/* Images */
.img-fluid {
  max-width: 100%;
  height: auto;
  transition: var(--transition);
}

.img-fluid.rounded {
  border-radius: 12px !important;
}

.img-fluid:hover {
  transform: scale(1.02);
}

/* Forms */
.form-control,
.form-select {
  border: 2px solid #e0e0e0 !important;
  padding: 0.75rem 1rem !important;
  border-radius: 8px !important;
  transition: var(--transition);
  background: var(--white) !important;
  color: var(--text-dark) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(21, 101, 192, 0.25) !important;
  background: var(--white) !important;
}

.form-label {
  color: var(--text-dark) !important;
  font-weight: 600 !important;
  margin-bottom: 0.5rem;
}

.fw-semibold {
  font-weight: 600 !important;
}

.form-check-input {
  border: 2px solid var(--primary-color) !important;
  cursor: pointer;
}

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

.form-check-label {
  color: var(--text-dark) !important;
  cursor: pointer;
}

/* Alert */
.alert {
  border-radius: 8px !important;
  border: none !important;
  padding: 1rem 1.5rem !important;
}

/* Project Items */
.project-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  cursor: pointer;
}

.project-item img {
  transition: var(--transition);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(21, 101, 192, 0.9) 0%, rgba(255, 193, 7, 0.9) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  color: var(--white) !important;
  padding: 2rem;
  text-align: center;
}

.project-item:hover img {
  transform: scale(1.2);
}

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

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

/* Timeline */
.timeline-line {
  position: relative;
  padding: 2rem 0;
}

.timeline-line::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-color);
  transform: translateX(-50%);
}

/* Utilities */
.opacity-25 { opacity: 0.25 !important; }
.opacity-75 { opacity: 0.75 !important; }
.opacity-90 { opacity: 0.9 !important; }

.text-white-50 {
  color: rgba(255, 255, 255, 0.5) !important;
}

.rounded-3 {
  border-radius: 12px !important;
}

.border-0 {
  border: none !important;
}

.border-top {
  border-top: 1px solid #dee2e6 !important;
}

.list-unstyled {
  list-style: none;
  padding-left: 0;
}

.text-decoration-none {
  text-decoration: none !important;
  color: var(--text-light) !important;
  transition: var(--transition);
}

.text-decoration-none:hover {
  color: var(--primary-color) !important;
}

/* Social Media Links */
.bi-facebook:hover { color: #1877f2 !important; }
.bi-twitter:hover { color: #1da1f2 !important; }
.bi-linkedin:hover { color: #0077b5 !important; }
.bi-instagram:hover { color: #e4405f !important; }

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease-out forwards;
}

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

.animate-slideInLeft {
  animation: slideInLeft 0.6s ease-out forwards;
}

.animate-slideInRight {
  animation: slideInRight 0.6s ease-out forwards;
}

/* Scroll to Top Button */
.bi-arrow-up {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary-color) !important;
  color: var(--white) !important;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow);
}

.bi-arrow-up.show {
  opacity: 1;
  visibility: visible;
}

.bi-arrow-up:hover {
  background: var(--secondary-color) !important;
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* Responsive Typography */
@media (max-width: 768px) {
  .display-3 { font-size: 2.5rem !important; }
  .display-4 { font-size: 2rem !important; }
  .display-5 { font-size: 1.75rem !important; }
  .display-6 { font-size: 1.5rem !important; }
  .fs-1 { font-size: 2rem !important; }
  .fs-3 { font-size: 1.5rem !important; }
  .lead { font-size: 1.1rem !important; }
  
  .btn-lg {
    padding: 0.75rem 2rem !important;
    font-size: 0.9rem !important;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .navbar-collapse {
    background: rgba(13, 71, 161, 0.98);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
  }
  
  .timeline-line::before {
    left: 0;
  }
}

@media (max-width: 576px) {
  .display-3 { font-size: 2rem !important; }
  .display-4 { font-size: 1.75rem !important; }
  .px-5 { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }
  .py-5 { padding-top: 2rem !important; padding-bottom: 2rem !important; }
}

/* Hover Effects */
.hover-lift {
  transition: var(--transition);
}

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

/* Section Spacing */
section {
  padding: 5rem 0;
}

@media (max-width: 768px) {
  section {
    padding: 3rem 0;
  }
}

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

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

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

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

/* Loading Animation */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s, visibility 0.5s;
}

.loading.hide {
  opacity: 0;
  visibility: hidden;
}

.loading::after {
  content: '';
  width: 50px;
  height: 50px;
  border: 5px solid var(--bg-light);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Text Selection */
::selection {
  background: var(--secondary-color);
  color: var(--text-dark);
}

/* Focus Styles */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

/* 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-width: 0;
}