/* Arctic Frost Architecture Studio - CSS */

/* ===== ROOT VARIABLES ===== */
:root {
  --primary-color: #2E3440;
  --secondary-color: #88C0D0;
  --accent-color: #81A1C1;
  --light-color: #ECEFF4;
  --dark-color: #2E3440;
  --frost-white: #D8DEE9;
  --ice-blue: #5E81AC;
  --snow-white: #FFFFFF;
  --text-dark: #2E3440;
  --text-light: #4C566A;
  --shadow: rgba(46, 52, 64, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--light-color) !important;
  color: var(--text-dark) !important;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.lead {
  color: var(--text-light) !important;
  font-weight: 400;
}

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

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

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

/* ===== NAVIGATION ===== */
.navbar {
  background: rgba(46, 52, 64, 0.95) !important;
  backdrop-filter: blur(10px);
  padding: 1rem 0 !important;
  box-shadow: 0 2px 20px var(--shadow);
  transition: var(--transition);
  z-index: 1030;
}

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

.navbar-brand {
  color: var(--snow-white) !important;
  font-size: 1.5rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.05em;
  transition: var(--transition);
}

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

.nav-link {
  color: var(--frost-white) !important;
  font-weight: 500 !important;
  padding: 0.5rem 1.2rem !important;
  margin: 0 0.2rem;
  position: relative;
  transition: var(--transition);
  text-decoration: none !important;
}

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

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

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

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

.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 {
  height: 100vh;
  min-height: 600px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--ice-blue) 100%);
}

.carousel,
.carousel-inner,
.carousel-item {
  height: 100vh;
  min-height: 600px;
}

.carousel-item {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.carousel-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(46, 52, 64, 0.85) 0%, rgba(94, 129, 172, 0.7) 100%);
  z-index: 1;
}

.carousel-caption {
  z-index: 2;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0;
}

.carousel-fade .carousel-item {
  opacity: 0;
  transition-duration: 1s;
  transition-property: opacity;
}

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

.carousel-caption h1,
.carousel-caption .display-2 {
  color: var(--snow-white) !important;
  text-shadow: 2px 2px 20px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease-out;
}

.carousel-caption .lead {
  color: var(--frost-white) !important;
  text-shadow: 1px 1px 10px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1.2s ease-out;
}

/* ===== SCROLL INDICATOR ===== */
.scroll-indicator {
  width: 30px;
  height: 50px;
  border: 2px solid var(--snow-white);
  border-radius: 20px;
  display: inline-block;
  position: relative;
  animation: float 2s ease-in-out infinite;
}

.scroll-indicator::before {
  content: '';
  width: 6px;
  height: 10px;
  background: var(--secondary-color);
  border-radius: 3px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll 2s ease-in-out infinite;
}

/* ===== BUTTONS ===== */
.btn {
  font-weight: 600 !important;
  padding: 0.75rem 2rem !important;
  border-radius: 50px !important;
  transition: var(--transition) !important;
  border: none !important;
  text-decoration: 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 2.5rem !important;
  font-size: 1.1rem !important;
}

.btn-primary,
.btn.btn-primary {
  background-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  font-weight: 700 !important;
}

.btn-primary:hover {
  background-color: var(--ice-blue) !important;
  color: var(--snow-white) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(136, 192, 208, 0.4) !important;
}

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

.btn-outline-dark:hover {
  background-color: var(--primary-color) !important;
  color: var(--snow-white) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px var(--shadow) !important;
}

/* ===== CARDS ===== */
.card {
  border: none !important;
  border-radius: 15px !important;
  transition: var(--transition) !important;
  background: var(--snow-white) !important;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--shadow) !important;
}

.card-img-top {
  border-radius: 15px 15px 0 0 !important;
  transition: var(--transition);
}

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

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

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

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

.shadow,
.shadow-sm,
.shadow-lg {
  box-shadow: 0 10px 40px var(--shadow) !important;
}

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

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

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

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

/* ===== PORTFOLIO GRID ===== */
.filter-btn {
  background: transparent !important;
  border: 2px solid var(--primary-color) !important;
  color: var(--primary-color) !important;
  padding: 0.5rem 1.5rem !important;
  margin: 0.5rem !important;
  border-radius: 50px !important;
  font-weight: 600 !important;
  transition: var(--transition) !important;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(136, 192, 208, 0.3) !important;
}

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

.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: 15px;
  cursor: pointer;
  height: 350px;
  transition: var(--transition);
}

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

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(46, 52, 64, 0.95) 0%, transparent 100%);
  opacity: 0;
  transition: var(--transition);
  padding: 2rem;
  color: var(--snow-white) !important;
}

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

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

.portfolio-overlay h4,
.portfolio-overlay p {
  color: var(--snow-white) !important;
}

.badge {
  background-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  font-weight: 600 !important;
  padding: 0.5rem 1rem !important;
  border-radius: 50px !important;
}

/* ===== FORMS ===== */
.form-control,
.form-select {
  border: 2px solid var(--frost-white) !important;
  border-radius: 10px !important;
  padding: 0.75rem 1rem !important;
  transition: var(--transition) !important;
  background-color: var(--snow-white) !important;
  color: var(--text-dark) !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(--snow-white) !important;
}

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

.form-check-input {
  border: 2px solid var(--frost-white) !important;
  width: 1.5em !important;
  height: 1.5em !important;
}

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

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

/* ===== MODAL ===== */
.modal-content {
  border-radius: 20px !important;
  border: none !important;
  overflow: hidden;
}

.modal-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--ice-blue) 100%);
  color: var(--snow-white) !important;
  border: none !important;
  padding: 2rem !important;
}

.modal-title {
  color: var(--snow-white) !important;
  font-weight: 700 !important;
}

.modal-body {
  padding: 2rem !important;
  background-color: var(--snow-white) !important;
}

.btn-close,
.btn-close-white {
  filter: brightness(0) invert(1);
  opacity: 1 !important;
}

.btn-close:hover {
  transform: rotate(90deg);
}

/* ===== ACCORDION ===== */
.accordion {
  border: none !important;
}

.accordion-item {
  border: none !important;
  margin-bottom: 1rem;
  border-radius: 15px !important;
  overflow: hidden;
  box-shadow: 0 5px 15px var(--shadow) !important;
}

.accordion-header {
  border: none !important;
}

.accordion-button {
  background-color: var(--snow-white) !important;
  color: var(--primary-color) !important;
  font-weight: 600 !important;
  padding: 1.5rem !important;
  border: none !important;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  background-color: var(--secondary-color) !important;
  color: var(--primary-color) !important;
}

.accordion-button::after {
  filter: brightness(0) saturate(100%) invert(21%) sepia(13%) saturate(1035%) hue-rotate(169deg) brightness(92%) contrast(90%);
}

.accordion-button:not(.collapsed)::after {
  filter: brightness(0) saturate(100%) invert(21%) sepia(13%) saturate(1035%) hue-rotate(169deg) brightness(92%) contrast(90%);
}

.accordion-body {
  padding: 1.5rem !important;
  background-color: var(--snow-white) !important;
  color: var(--text-light) !important;
}

/* ===== PROGRESS BARS ===== */
.progress {
  height: 10px !important;
  border-radius: 50px !important;
  background-color: var(--frost-white) !important;
  overflow: visible !important;
}

.progress-bar {
  background: linear-gradient(90deg, var(--secondary-color) 0%, var(--ice-blue) 100%) !important;
  border-radius: 50px !important;
  position: relative;
  overflow: visible !important;
}

.progress-bar::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  background-color: var(--secondary-color);
  border-radius: 50%;
  box-shadow: 0 0 10px rgba(136, 192, 208, 0.5);
}

/* ===== ALERT ===== */
.alert {
  border: none !important;
  border-radius: 15px !important;
  padding: 1.5rem !important;
  background-color: rgba(136, 192, 208, 0.1) !important;
  color: var(--primary-color) !important;
  border-left: 4px solid var(--secondary-color) !important;
}

/* ===== ICONS ===== */
.bi {
  vertical-align: middle;
  transition: var(--transition);
}

[class^="bi-"]::before,
[class*=" bi-"]::before {
  color: var(--secondary-color);
}

.text-white [class^="bi-"]::before,
.text-white [class*=" bi-"]::before {
  color: var(--snow-white) !important;
}

.rounded-circle {
  border-radius: 50% !important;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.rounded-circle:hover {
  background-color: var(--secondary-color) !important;
  transform: translateY(-3px) rotate(10deg);
}

/* ===== FOOTER ===== */
footer {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--ice-blue) 100%);
  color: var(--frost-white) !important;
  padding: 4rem 0 2rem;
}

footer h6,
footer .h6 {
  color: var(--snow-white) !important;
  font-weight: 700 !important;
  margin-bottom: 1.5rem !important;
}

footer a {
  color: var(--frost-white) !important;
  text-decoration: none !important;
  transition: var(--transition);
}

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

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

footer .bi {
  color: var(--secondary-color) !important;
  margin-right: 0.5rem;
}

/* ===== STICKY TOP ===== */
.sticky-top {
  top: 80px;
  z-index: 1020;
}

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

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

.rounded {
  border-radius: 15px !important;
}

.rounded-3 {
  border-radius: 15px !important;
}

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

.img-fluid {
  border-radius: 15px;
  transition: var(--transition);
}

.img-fluid:hover {
  transform: scale(1.02);
  box-shadow: 0 15px 40px var(--shadow);
}

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

.gap-2 {
  gap: 0.5rem !important;
}

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

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

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

@keyframes scroll {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
}

@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);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

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

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

/* ===== RESPONSIVE ===== */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(46, 52, 64, 0.98);
    padding: 1rem;
    border-radius: 15px;
    margin-top: 1rem;
  }
  
  .nav-link {
    padding: 0.75rem 1rem !important;
  }
  
  .hero-slideshow,
  .carousel,
  .carousel-inner,
  .carousel-item {
    height: 100vh;
    min-height: 500px;
  }
  
  .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;
  }
  
  section {
    padding: 3rem 0;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
  }
  
  .portfolio-item {
    height: 250px;
  }
  
  .sticky-top {
    position: relative !important;
    top: 0;
  }
}

@media (max-width: 767.98px) {
  .display-2 {
    font-size: 2rem !important;
  }
  
  .lead,
  .fs-4 {
    font-size: 1rem !important;
  }
  
  .btn {
    padding: 0.6rem 1.5rem !important;
    font-size: 0.9rem !important;
  }
  
  .btn-lg {
    padding: 0.75rem 2rem !important;
    font-size: 1rem !important;
  }
  
  .card-body {
    padding: 1.5rem !important;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  footer {
    text-align: center !important;
  }
  
  footer .text-md-end,
  footer .text-md-start {
    text-align: center !important;
  }
}

@media (max-width: 575.98px) {
  .hero-slideshow,
  .carousel,
  .carousel-inner,
  .carousel-item {
    height: 100vh;
    min-height: 450px;
  }
  
  .carousel-caption {
    padding: 1rem;
  }
  
  .display-2 {
    font-size: 1.75rem !important;
  }
  
  .px-4 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .px-5 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .py-5 {
    padding-top: 2rem !important;
    padding-bottom: 2rem !important;
  }
}

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

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

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

/* ===== SCROLL ANIMATIONS ===== */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-animate.active {
  opacity: 1;
  transform: translateY(0);
}

/* ===== BACKGROUND PATTERNS ===== */
.bg-pattern {
  background-image: 
    linear-gradient(30deg, rgba(136, 192, 208, 0.05) 12%, transparent 12.5%, transparent 87%, rgba(136, 192, 208, 0.05) 87.5%, rgba(136, 192, 208, 0.05)),
    linear-gradient(150deg, rgba(136, 192, 208, 0.05) 12%, transparent 12.5%, transparent 87%, rgba(136, 192, 208, 0.05) 87.5%, rgba(136, 192, 208, 0.05)),
    linear-gradient(30deg, rgba(136, 192, 208, 0.05) 12%, transparent 12.5%, transparent 87%, rgba(136, 192, 208, 0.05) 87.5%, rgba(136, 192, 208, 0.05)),
    linear-gradient(150deg, rgba(136, 192, 208, 0.05) 12%, transparent 12.5%, transparent 87%, rgba(136, 192, 208, 0.05) 87.5%, rgba(136, 192, 208, 0.05));
  background-size: 80px 140px;
  background-position: 0 0, 0 0, 40px 70px, 40px 70px, 0 0, 40px 70px;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 10px;
}

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

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

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

/* ===== SELECTION ===== */
::selection {
  background: var(--secondary-color);
  color: var(--primary-color);
}

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