/* Nordic Stone Architecture Studio - Custom Styles */

/* ===== CSS Variables ===== */
:root {
  --primary-color: #2E3440;
  --secondary-color: #88C0D0;
  --light-gray: #D8DEE9;
  --white: #ECEFF4;
  --dark-accent: #3B4252;
  --light-accent: #E5E9F0;
  --stone-texture: linear-gradient(135deg, #2E3440 0%, #3B4252 100%);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 8px rgba(46, 52, 64, 0.1);
  --shadow-md: 0 4px 16px rgba(46, 52, 64, 0.15);
  --shadow-lg: 0 8px 32px rgba(46, 52, 64, 0.2);
}

/* ===== Global Styles ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--light-accent);
  color: var(--primary-color);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== Typography ===== */
.display-2, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--primary-color) !important;
}

.lead {
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--dark-accent) !important;
}

.fs-4, .fs-5 {
  line-height: 1.8;
}

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

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

.text-muted {
  color: #6c757d !important;
}

h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
  font-weight: 600;
  color: var(--primary-color) !important;
}

/* ===== Navigation ===== */
.navbar {
  background: linear-gradient(180deg, rgba(46, 52, 64, 0.95) 0%, rgba(46, 52, 64, 0.85) 100%);
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
  border-bottom: 1px solid rgba(136, 192, 208, 0.2);
}

.navbar.scrolled {
  background: var(--primary-color) !important;
  box-shadow: var(--shadow-md);
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700 !important;
  color: var(--secondary-color) !important;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: var(--transition-smooth);
}

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

.navbar-dark .navbar-toggler {
  border-color: var(--secondary-color) !important;
  color: var(--secondary-color) !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='%2388C0D0' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.navbar-nav {
  align-items: center;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  position: relative;
  transition: var(--transition-smooth);
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

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

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

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

.nav-link.active {
  color: var(--secondary-color) !important;
  font-weight: 600 !important;
}

/* ===== Hero Section ===== */
.carousel {
  background: var(--primary-color);
}

.carousel-item {
  transition: opacity 1.5s ease-in-out !important;
}

.carousel-item img {
  filter: brightness(0.6) contrast(1.1);
  width: 100%;
  height: 100vh;
  object-fit: cover;
}

.carousel-fade .carousel-item {
  opacity: 0;
  transition-duration: 1.5s;
}

.carousel-fade .carousel-item.active {
  opacity: 1;
}

.position-absolute.top-50 {
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translate(-50%, -40%);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

.position-absolute.top-50 .display-2 {
  color: #FFFFFF !important;
  text-shadow: 2px 4px 8px rgba(0, 0, 0, 0.5);
  font-weight: 700 !important;
  margin-bottom: 1.5rem;
}

.position-absolute.top-50 .lead {
  color: rgba(255, 255, 255, 0.95) !important;
  text-shadow: 1px 2px 4px rgba(0, 0, 0, 0.5);
  font-size: 1.5rem;
  font-weight: 300 !important;
}

/* ===== Buttons ===== */
.btn {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 4px;
  transition: var(--transition-smooth);
  border-width: 2px !important;
}

.btn-lg {
  padding: 0.875rem 2.5rem;
  font-size: 1rem;
}

.btn-outline-light {
  color: #FFFFFF !important;
  border-color: #FFFFFF !important;
  background: transparent !important;
}

.btn-outline-light:hover {
  background: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(136, 192, 208, 0.4);
}

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

.btn-light:hover {
  background: var(--secondary-color) !important;
  color: #FFFFFF !important;
  border-color: var(--secondary-color) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--dark-accent) !important;
  color: #FFFFFF !important;
  border-color: var(--dark-accent) !important;
}

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

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

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

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

.btn-outline:hover {
  background: var(--secondary-color) !important;
  color: #FFFFFF !important;
}

.btn-close {
  filter: brightness(0) invert(1);
}

/* ===== Cards ===== */
.card {
  border: none !important;
  border-radius: 8px;
  overflow: hidden;
  transition: var(--transition-smooth);
  background: #FFFFFF;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg) !important;
}

.card-img-top {
  height: 250px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

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

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-weight: 600;
  color: var(--primary-color) !important;
  margin-bottom: 0.75rem;
}

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

/* ===== Sections ===== */
section {
  padding: 5rem 0;
}

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

.py-5 {
  padding-top: 4rem !important;
  padding-bottom: 4rem !important;
}

.py-4 {
  padding-top: 3rem !important;
  padding-bottom: 3rem !important;
}

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

.rounded {
  border-radius: 8px !important;
}

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

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

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

/* ===== Portfolio Items ===== */
.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.portfolio-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(46, 52, 64, 0.8), rgba(136, 192, 208, 0.6));
  opacity: 0;
  transition: var(--transition-smooth);
  z-index: 1;
}

.portfolio-item:hover::before {
  opacity: 1;
}

.portfolio-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

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

.portfolio-item:hover img {
  transform: scale(1.1);
}

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

.bi-award-fill,
.bi-patch-check-fill,
.bi-building,
.bi-globe,
.bi-telephone-fill,
.bi-envelope-fill,
.bi-geo-alt-fill,
.bi-linkedin,
.bi-instagram,
.bi-facebook,
.bi-tree,
.bi-droplet,
.bi-lightning-charge,
.bi-recycle,
.bi-sun,
.bi-wind,
.bi-truck,
.bi-moisture,
.bi-thermometer-half,
.bi-bricks,
.bi-hourglass-split,
.bi-graph-up,
.bi-coin,
.bi-telephone,
.bi-envelope {
  color: var(--secondary-color) !important;
}

.fs-1 {
  font-size: 3rem !important;
}

.display-3 .bi {
  color: var(--secondary-color) !important;
}

/* ===== Forms ===== */
.form-control,
.form-select {
  border: 2px solid var(--light-gray);
  border-radius: 6px;
  padding: 0.75rem 1rem;
  transition: var(--transition-smooth);
  background: #FFFFFF;
  color: var(--primary-color) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--secondary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(136, 192, 208, 0.25) !important;
  background: #FFFFFF !important;
}

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

.form-check-input {
  border: 2px solid var(--light-gray);
  cursor: pointer;
}

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

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

.invalid-feedback {
  color: #dc3545 !important;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.needs-validation .form-control:invalid {
  border-color: #dc3545;
}

.needs-validation .form-control:valid {
  border-color: #28a745;
}

/* ===== Alerts ===== */
.alert-info {
  background-color: rgba(136, 192, 208, 0.15) !important;
  border-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  border-radius: 6px;
}

/* ===== Modal ===== */
.modal-content {
  border-radius: 8px;
  border: none;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  background: var(--primary-color) !important;
  border-bottom: none;
  padding: 1.5rem;
}

.modal-title {
  color: #FFFFFF !important;
  font-weight: 600;
}

.modal-body {
  padding: 2rem;
}

.modal-footer {
  border-top: none;
  padding: 1.5rem;
}

/* ===== Progress Bars ===== */
.progress {
  height: 1.5rem;
  border-radius: 8px;
  background-color: var(--light-accent);
}

.progress-bar {
  background-color: var(--secondary-color) !important;
  font-weight: 600;
  transition: width 1s ease-in-out;
}

/* ===== Footer ===== */
footer {
  background: var(--stone-texture);
  color: rgba(255, 255, 255, 0.85) !important;
  padding: 3rem 0 1rem;
}

footer h6,
footer .h6 {
  color: var(--secondary-color) !important;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

footer a {
  color: rgba(255, 255, 255, 0.75) !important;
  text-decoration: none;
  transition: var(--transition-smooth);
}

footer a:hover {
  color: var(--secondary-color) !important;
  padding-left: 5px;
}

footer .list-unstyled li {
  margin-bottom: 0.5rem;
}

footer .bi {
  color: var(--secondary-color) !important;
  font-size: 1.5rem;
  transition: var(--transition-smooth);
}

footer .bi:hover {
  color: #FFFFFF !important;
  transform: translateY(-3px);
}

/* ===== Utilities ===== */
.text-decoration-none {
  text-decoration: none !important;
}

.opacity-25 {
  opacity: 0.25 !important;
}

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

.opacity-90 {
  opacity: 0.9 !important;
}

.z-1 { z-index: 1 !important; }
.z-2 { z-index: 2 !important; }
.z-3 { z-index: 3 !important; }

.sticky-lg-top {
  position: -webkit-sticky;
  position: sticky;
  top: 20px;
}

.ratio-21x9 {
  aspect-ratio: 21/9;
}

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

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

/* ===== Animations ===== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  animation: fadeIn 0.8s ease-out forwards;
}

/* ===== Filter Buttons ===== */
.btn-group .filter-btn {
  min-width: 120px;
}

/* ===== Responsive Typography ===== */
@media (max-width: 991.98px) {
  .display-2 {
    font-size: 2.5rem !important;
  }
  
  .display-3 {
    font-size: 2rem !important;
  }
  
  .display-4 {
    font-size: 1.75rem !important;
  }
  
  .display-5 {
    font-size: 1.5rem !important;
  }
  
  .display-6 {
    font-size: 1.25rem !important;
  }
  
  .lead {
    font-size: 1.1rem;
  }
}

/* ===== Mobile Navigation ===== */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(46, 52, 64, 0.98);
    padding: 1.5rem;
    margin-top: 1rem;
    border-radius: 8px;
  }
  
  .navbar-nav {
    gap: 0.5rem !important;
  }
  
  .nav-link {
    padding: 0.75rem 1rem !important;
  }
  
  .nav-link::before {
    left: 0;
    transform: translateX(0);
  }
  
  .nav-link:hover::before,
  .nav-link.active::before {
    width: 100%;
  }
}

/* ===== Spacing Adjustments ===== */
.my-4 {
  margin-top: 2rem !important;
  margin-bottom: 2rem !important;
}

.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 2rem !important; }
.mt-5 { margin-top: 3rem !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 2rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.ms-2 { margin-left: 0.5rem !important; }
.ms-4 { margin-left: 2rem !important; }
.me-2 { margin-right: 0.5rem !important; }
.me-3 { margin-right: 1rem !important; }

.p-3 { padding: 1rem !important; }
.p-4 { padding: 2rem !important; }
.p-md-5 { padding: 3rem !important; }

.px-4 {
  padding-left: 2rem !important;
  padding-right: 2rem !important;
}

.px-5 {
  padding-left: 3rem !important;
  padding-right: 3rem !important;
}

.py-2 { padding-top: 0.5rem !important; padding-bottom: 0.5rem !important; }
.py-3 { padding-top: 1rem !important; padding-bottom: 1rem !important; }

.pe-lg-4 { padding-right: 2rem !important; }
.pe-lg-5 { padding-right: 3rem !important; }
.ps-lg-5 { padding-left: 3rem !important; }

.pb-4 { padding-bottom: 2rem !important; }
.pt-4 { padding-top: 2rem !important; }

/* ===== Gaps ===== */
.gap-3 { gap: 1rem !important; }
.gap-4 { gap: 2rem !important; }
.g-0 { gap: 0 !important; }
.g-3 { gap: 1rem !important; }
.g-4 { gap: 2rem !important; }
.g-5 { gap: 3rem !important; }

/* ===== Text Alignment ===== */
@media (min-width: 768px) {
  .text-md-start {
    text-align: left !important;
  }
  
  .text-md-end {
    text-align: right !important;
  }
}

/* ===== Scroll to Top Button ===== */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--secondary-color);
  color: #FFFFFF !important;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top:hover {
  background: var(--primary-color);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* ===== Loading Animation ===== */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #FFFFFF;
  animation: spin 1s linear infinite;
}

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

/* ===== Hover Effects ===== */
.hover-scale {
  transition: var(--transition-smooth);
}

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

/* ===== Background Patterns ===== */
.bg-pattern {
  background-image: 
    linear-gradient(45deg, rgba(136, 192, 208, 0.05) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(136, 192, 208, 0.05) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(136, 192, 208, 0.05) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(136, 192, 208, 0.05) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

/* ===== Smooth Transitions for All Interactive Elements ===== */
a, button, .btn, .card, .nav-link, .form-control, .form-select {
  transition: var(--transition-smooth);
}

/* ===== Focus Visible ===== */
*:focus-visible {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

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