/* Nordic Steel Architecture Studio - Complete CSS */

/* ==================== ROOT VARIABLES ==================== */
:root {
  --primary-color: #2E3440;
  --secondary-color: #88C0D0;
  --accent-color: #5E81AC;
  --light-bg: #ECEFF4;
  --dark-bg: #2E3440;
  --text-dark: #2E3440;
  --text-light: #D8DEE9;
  --white: #FFFFFF;
  --shadow: rgba(46, 52, 64, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 8px;
}

/* ==================== GLOBAL STYLES ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--text-dark) !important;
  background-color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-color) !important;
}

a {
  text-decoration: none;
  transition: var(--transition);
}

img {
  max-width: 100%;
  height: auto;
}

/* ==================== NAVBAR STYLES ==================== */
.navbar {
  background-color: var(--primary-color) !important;
  padding: 1rem 0;
  box-shadow: 0 2px 20px var(--shadow);
  transition: var(--transition);
}

.navbar.fixed-top {
  backdrop-filter: blur(10px);
  background-color: rgba(46, 52, 64, 0.95) !important;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700 !important;
  color: var(--white) !important;
  letter-spacing: -0.5px;
  transition: var(--transition);
}

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

.navbar-dark .navbar-nav .nav-link {
  color: var(--text-light) !important;
  font-weight: 500;
  padding: 0.5rem 1.2rem !important;
  margin: 0 0.2rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
  position: relative;
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
  color: var(--white) !important;
  background-color: rgba(136, 192, 208, 0.15) !important;
}

.navbar-dark .navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  background-color: var(--secondary-color);
  border-radius: 2px;
}

.navbar-toggler {
  border: 2px solid var(--secondary-color) !important;
  padding: 0.5rem 0.75rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(136, 192, 208, 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='%2388C0D0' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* ==================== HERO SLIDESHOW ==================== */
.hero-slideshow {
  margin-top: 76px;
  height: 100vh;
  min-height: 600px;
}

.carousel {
  height: 100%;
}

.carousel-inner,
.carousel-item {
  height: 100%;
}

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

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

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

.carousel-caption-overlay {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(46, 52, 64, 0.3) 0%, rgba(46, 52, 64, 0.7) 100%);
  z-index: 1;
}

.carousel-caption-overlay .display-1 {
  font-size: clamp(2.5rem, 8vw, 5rem) !important;
  font-weight: 800;
  text-shadow: 2px 4px 20px rgba(0, 0, 0, 0.5);
  color: var(--white) !important;
  animation: fadeInUp 1s ease-out;
}

.carousel-caption-overlay .lead {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem) !important;
  color: var(--text-light) !important;
  text-shadow: 1px 2px 10px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 1.2s ease-out;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* ==================== BUTTONS ==================== */
.btn {
  font-weight: 600;
  border-radius: var(--border-radius);
  transition: var(--transition);
  border: 2px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.95rem;
}

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

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

.btn-outline-light:hover {
  background-color: var(--white) !important;
  color: var(--primary-color) !important;
  border-color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(255, 255, 255, 0.2);
}

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

.btn-outline-dark:hover {
  background-color: var(--primary-color) !important;
  color: var(--white) !important;
  border-color: var(--primary-color) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px var(--shadow);
}

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

.btn-light:hover {
  background-color: var(--secondary-color) !important;
  color: var(--white) !important;
  border-color: var(--secondary-color) !important;
  transform: translateY(-3px);
}

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

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.animate-bounce {
  animation: bounce 2s infinite;
}

.bi-chevron-down {
  color: var(--white) !important;
  cursor: pointer;
  transition: var(--transition);
}

.bi-chevron-down:hover {
  color: var(--secondary-color) !important;
}

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

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

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

/* ==================== SERVICE CARDS ==================== */
.service-card {
  background: var(--white);
  border-radius: var(--border-radius);
  transition: var(--transition);
  border: 2px solid transparent;
  height: 100%;
  cursor: pointer;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px var(--shadow) !important;
  border-color: var(--secondary-color);
}

.service-card .bi {
  font-size: 3rem;
  color: var(--secondary-color) !important;
  margin-bottom: 1rem;
  transition: var(--transition);
}

.service-card:hover .bi {
  color: var(--accent-color) !important;
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color) !important;
}

.service-card p {
  color: #6c757d !important;
  line-height: 1.8;
}

/* ==================== PORTFOLIO ==================== */
.portfolio-filter {
  padding: 2rem 0;
  margin-bottom: 3rem;
}

.portfolio-filter .btn {
  margin: 0.5rem;
  padding: 0.6rem 1.5rem;
  background-color: var(--white) !important;
  color: var(--primary-color) !important;
  border: 2px solid var(--primary-color) !important;
}

.portfolio-filter .btn.active,
.portfolio-filter .btn:hover {
  background-color: var(--primary-color) !important;
  color: var(--white) !important;
  transform: translateY(-2px);
}

.masonry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.portfolio-item {
  opacity: 0;
  animation: fadeInUp 0.6s ease-out forwards;
}

.portfolio-item:nth-child(1) { animation-delay: 0.1s; }
.portfolio-item:nth-child(2) { animation-delay: 0.2s; }
.portfolio-item:nth-child(3) { animation-delay: 0.3s; }
.portfolio-item:nth-child(4) { animation-delay: 0.4s; }
.portfolio-item:nth-child(5) { animation-delay: 0.5s; }
.portfolio-item:nth-child(6) { animation-delay: 0.6s; }

.portfolio-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  box-shadow: 0 5px 20px var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}

.portfolio-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px var(--shadow);
}

.portfolio-card img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  transition: var(--transition);
}

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

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(46, 52, 64, 0) 0%, rgba(46, 52, 64, 0.95) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition);
}

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

.portfolio-overlay h4 {
  color: var(--white) !important;
  margin-bottom: 0.5rem;
  transform: translateY(20px);
  transition: var(--transition);
}

.portfolio-card:hover .portfolio-overlay h4 {
  transform: translateY(0);
}

.portfolio-overlay p {
  color: var(--text-light) !important;
  margin-bottom: 1rem;
  transform: translateY(20px);
  transition: var(--transition);
  transition-delay: 0.1s;
}

.portfolio-card:hover .portfolio-overlay p {
  transform: translateY(0);
}

.badge {
  background-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  padding: 0.5rem 1rem;
  font-weight: 600;
  border-radius: 20px;
}

/* ==================== IMAGES & MEDIA ==================== */
.img-fluid {
  border-radius: var(--border-radius);
}

.rounded {
  border-radius: var(--border-radius) !important;
}

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

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

.shadow {
  box-shadow: 0 10px 30px var(--shadow) !important;
}

.shadow-lg {
  box-shadow: 0 15px 50px var(--shadow) !important;
}

.shadow-sm {
  box-shadow: 0 2px 10px var(--shadow) !important;
}

.object-fit-cover {
  object-fit: cover;
}

/* ==================== CARDS ==================== */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: 0 5px 20px var(--shadow);
  transition: var(--transition);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px var(--shadow);
}

.card-body {
  padding: 2rem;
}

.card-img-top {
  height: 250px;
  object-fit: cover;
}

/* ==================== FORMS ==================== */
.form-control,
.form-select {
  border: 2px solid #e5e9f0;
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  transition: var(--transition);
  color: var(--text-dark) !important;
  background-color: var(--white) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--secondary-color) !important;
  box-shadow: 0 0 0 0.2rem rgba(136, 192, 208, 0.25) !important;
  background-color: var(--white) !important;
}

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

.form-check-input {
  border: 2px solid #e5e9f0;
  width: 1.5em;
  height: 1.5em;
  cursor: pointer;
}

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

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

.invalid-feedback {
  display: none;
  color: #dc3545 !important;
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

.form-control.is-invalid ~ .invalid-feedback,
.form-select.is-invalid ~ .invalid-feedback {
  display: block;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: #dc3545 !important;
}

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

.bi::before {
  font-family: 'bootstrap-icons';
}

/* ==================== TEXT UTILITIES ==================== */
.text-white {
  color: var(--white) !important;
}

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

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

.display-1 {
  font-size: clamp(3rem, 8vw, 6rem) !important;
  font-weight: 800 !important;
}

.display-3 {
  font-size: clamp(2.5rem, 6vw, 4.5rem) !important;
  font-weight: 700 !important;
}

.display-4 {
  font-size: clamp(2rem, 5vw, 3.5rem) !important;
  font-weight: 700 !important;
}

.fs-1 { font-size: 2.5rem !important; }
.fs-2 { font-size: 2rem !important; }
.fs-3 { font-size: 1.75rem !important; }
.fs-4 { font-size: 1.5rem !important; }
.fs-5 { font-size: 1.25rem !important; }

.fw-bold { font-weight: 700 !important; }
.fw-semibold { font-weight: 600 !important; }

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

/* ==================== SPACING ==================== */
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }
.gap-4 { gap: 1.5rem !important; }

/* ==================== LIST STYLES ==================== */
.list-unstyled {
  list-style: none;
  padding-left: 0;
}

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

.list-unstyled a {
  color: var(--text-dark) !important;
  transition: var(--transition);
}

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

/* ==================== BREADCRUMB ==================== */
.breadcrumb {
  background-color: transparent;
  padding: 1rem 0;
  margin-bottom: 2rem;
}

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

.breadcrumb-item.active {
  color: var(--secondary-color) !important;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: #6c757d !important;
}

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

.breadcrumb-item a:hover {
  color: var(--secondary-color) !important;
}

/* ==================== RATIO (VIDEO EMBEDS) ==================== */
.ratio {
  position: relative;
  width: 100%;
}

.ratio::before {
  display: block;
  padding-top: var(--bs-aspect-ratio);
  content: "";
}

.ratio-16x9 {
  --bs-aspect-ratio: 56.25%;
}

.ratio > * {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ==================== FOOTER ==================== */
footer {
  background-color: var(--primary-color) !important;
  color: var(--text-light) !important;
  padding: 4rem 0 2rem;
}

footer h5,
footer h6 {
  color: var(--white) !important;
  margin-bottom: 1.5rem;
}

footer p,
footer a {
  color: var(--text-light) !important;
}

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

footer .border-top {
  border-color: rgba(136, 192, 208, 0.2) !important;
  margin-top: 3rem;
  padding-top: 2rem;
}

/* ==================== STICKY ELEMENTS ==================== */
.sticky-top {
  position: sticky;
  top: 90px;
  z-index: 1020;
}

.sticky-lg-top {
  position: sticky;
  top: 90px;
  z-index: 1020;
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 991px) {
  .navbar-collapse {
    background-color: var(--primary-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
    box-shadow: 0 10px 30px var(--shadow);
  }
  
  .navbar-nav {
    gap: 0.5rem;
  }
  
  .hero-slideshow {
    height: 70vh;
    min-height: 500px;
  }
  
  .display-1 {
    font-size: 2.5rem !important;
  }
  
  .display-3 {
    font-size: 2rem !important;
  }
  
  .display-4 {
    font-size: 1.75rem !important;
  }
  
  section {
    padding: 3rem 0;
  }
  
  .py-5 {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }
  
  .masonry-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
  }
  
  .btn-lg {
    padding: 0.75rem 2rem !important;
  }
}

@media (max-width: 767px) {
  .hero-slideshow {
    height: 60vh;
    min-height: 400px;
  }
  
  .carousel-caption-overlay .display-1 {
    font-size: 2rem !important;
  }
  
  .carousel-caption-overlay .lead {
    font-size: 1rem !important;
  }
  
  .masonry-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .service-card {
    margin-bottom: 1.5rem;
  }
  
  .btn-lg {
    padding: 0.6rem 1.5rem !important;
    font-size: 0.9rem;
  }
  
  .d-flex.gap-3 {
    flex-direction: column;
    align-items: stretch;
  }
  
  .d-flex.gap-3 .btn {
    width: 100%;
  }
}

@media (max-width: 575px) {
  .container-fluid {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .px-4 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  section {
    padding: 2rem 0;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .p-5 {
    padding: 2rem !important;
  }
}

/* ==================== UTILITY CLASSES ==================== */
.flex-shrink-0 {
  flex-shrink: 0 !important;
}

.d-inline-block {
  display: inline-block !important;
}

.overflow-hidden {
  overflow: hidden !important;
}

.position-relative {
  position: relative !important;
}

.position-absolute {
  position: absolute !important;
}

.top-0 { top: 0 !important; }
.bottom-0 { bottom: 0 !important; }
.start-0 { left: 0 !important; }

.top-50 { top: 50% !important; }
.start-50 { left: 50% !important; }

.translate-middle {
  transform: translate(-50%, -50%) !important;
}

.translate-middle-x {
  transform: translateX(-50%) !important;
}

.w-100 { width: 100% !important; }
.h-100 { height: 100% !important; }

.d-block { display: block !important; }
.d-flex { display: flex !important; }

.align-items-center { align-items: center !important; }
.align-items-start { align-items: flex-start !important; }

.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }

.flex-wrap { flex-wrap: wrap !important; }
.flex-column { flex-column: column !important; }

.text-center { text-align: center !important; }

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

/* ==================== HOVER EFFECTS ==================== */
.hover-lift {
  transition: var(--transition);
}

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

/* ==================== CUSTOM SCROLLBAR ==================== */
::-webkit-scrollbar {
  width: 12px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--secondary-color);
  border-radius: 6px;
}

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

/* ==================== LOADING STATES ==================== */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

/* ==================== ACCESSIBILITY ==================== */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: var(--white) !important;
  padding: 8px;
  text-decoration: none;
  z-index: 9999;
}

.skip-to-content:focus {
  top: 0;
}

/* ==================== PRINT STYLES ==================== */
@media print {
  .navbar,
  .btn,
  footer {
    display: none !important;
  }
  
  body {
    color: #000 !important;
  }
}