/* Alpine Frost Architecture Studio - Custom Styles */

:root {
  --primary-color: #2E5266;
  --secondary-color: #B8D4E3;
  --accent-light: #E8F2F7;
  --accent-dark: #1A3544;
  --text-dark: #2C3E50;
  --text-light: #6C757D;
  --white: #FFFFFF;
  --shadow: rgba(46, 82, 102, 0.15);
  --shadow-lg: rgba(46, 82, 102, 0.25);
  --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-dark);
  line-height: 1.7;
  overflow-x: hidden;
  background-color: var(--white);
}

/* Typography */
h1, h2, h3, h4, h5, h6,
.display-3, .display-4, .display-5, .display-6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--accent-dark) !important;
  letter-spacing: -0.02em;
}

.lead {
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--text-light);
}

/* Navigation */
.navbar {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-dark) 100%) !important;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px var(--shadow);
  transition: var(--transition);
  padding: 1rem 0;
  z-index: 1000;
}

.navbar.scrolled {
  background: rgba(46, 82, 102, 0.98) !important;
  box-shadow: 0 4px 30px var(--shadow-lg);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--white) !important;
  text-transform: uppercase;
  transition: var(--transition);
}

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

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

.nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem !important;
  position: relative;
  transition: var(--transition);
  text-transform: uppercase;
  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);
}

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

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

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

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.25rem rgba(184, 212, 227, 0.25);
}

.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(184, 212, 227, 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;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 8px;
  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,
.btn.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-dark) 100%) !important;
  color: var(--white) !important;
  border: 2px solid transparent !important;
  box-shadow: 0 4px 15px rgba(46, 82, 102, 0.3);
}

.btn-primary:hover,
.btn.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-dark) 0%, var(--primary-color) 100%) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(46, 82, 102, 0.4) !important;
  color: var(--white) !important;
}

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

.btn-outline-light:hover {
  background: var(--white) !important;
  color: var(--primary-color) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 255, 255, 0.3);
}

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

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

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

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-dark) 100%);
  color: var(--white);
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,%3Csvg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M30 0l30 30-30 30L0 30z" fill="%23B8D4E3" fill-opacity="0.03"/%3E%3C/svg%3E');
  opacity: 0.4;
}

.hero-section .container {
  position: relative;
  z-index: 2;
}

.hero-section h1,
.hero-section .display-3 {
  color: var(--white) !important;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
  animation: fadeInUp 1s ease-out;
}

.hero-section p,
.hero-section .fs-4 {
  color: var(--secondary-color) !important;
  animation: fadeInUp 1.2s ease-out;
}

.hero-section .btn {
  animation: fadeInUp 1.4s ease-out;
}

.object-fit-cover {
  object-fit: cover;
  filter: brightness(0.7);
}

/* Cards */
.card {
  border-radius: 12px;
  transition: var(--transition);
  overflow: hidden;
  background: var(--white);
  height: 100%;
}

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

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

.card.shadow-lg,
.shadow-lg {
  box-shadow: 0 8px 30px var(--shadow-lg) !important;
}

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

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

.card-body {
  padding: 2rem;
}

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

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

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

/* Portfolio */
.portfolio-masonry {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  padding: 2rem 0;
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  cursor: pointer;
}

.portfolio-card {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  height: 350px;
}

.portfolio-card img {
  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(135deg, rgba(46, 82, 102, 0.95) 0%, rgba(26, 53, 68, 0.95) 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition);
}

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

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

.portfolio-overlay h3,
.portfolio-overlay p {
  color: var(--white) !important;
  transform: translateY(20px);
  transition: var(--transition);
}

.portfolio-card:hover .portfolio-overlay h3,
.portfolio-card:hover .portfolio-overlay p {
  transform: translateY(0);
}

/* Badges */
.badge {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.05em;
  font-size: 0.8rem;
}

.badge.bg-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-dark) 100%) !important;
  color: var(--white) !important;
}

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

.elevation-badge {
  background: var(--secondary-color) !important;
  color: var(--primary-color) !important;
  font-weight: 700;
  display: inline-block;
}

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

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.25rem rgba(46, 82, 102, 0.15);
  background: var(--white);
}

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

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

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

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

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

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

.needs-validation .form-control:valid {
  border-color: #198754;
}

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

.bi-triangle-fill {
  color: var(--secondary-color);
  font-size: 0.5rem;
  margin: 0 0.5rem;
}

[class^="bi-"],
[class*=" bi-"] {
  line-height: 1;
}

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

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

.bg-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-dark) 100%) !important;
  color: var(--white) !important;
}

.bg-transparent {
  background-color: transparent !important;
}

/* Text Colors */
.text-white {
  color: var(--white) !important;
}

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

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

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

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

/* Progress Bars */
.progress {
  height: 12px;
  border-radius: 20px;
  background-color: var(--accent-light);
  overflow: hidden;
}

.progress-bar {
  background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-dark) 100%);
  transition: width 1.5s ease-in-out;
}

/* Rounded Elements */
.rounded {
  border-radius: 12px !important;
}

.rounded-3 {
  border-radius: 16px !important;
}

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

/* Positioning */
.position-sticky {
  position: sticky;
  top: 100px;
}

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

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

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

.my-4 {
  margin-top: 3rem !important;
  margin-bottom: 3rem !important;
}

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

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

.list-unstyled a {
  color: var(--text-light);
  transition: var(--transition);
}

.list-unstyled a:hover {
  color: var(--primary-color);
  padding-left: 0.5rem;
}

/* Links */
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

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

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

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

/* Borders */
.border {
  border: 1px solid var(--secondary-color) !important;
}

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

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

/* D-inline-flex */
.d-inline-flex {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
}

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

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

/* 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-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Section Styling */
section {
  position: relative;
  overflow: hidden;
}

section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--secondary-color) 0%, transparent 70%);
  opacity: 0.1;
  pointer-events: none;
}

/* Footer */
footer {
  background: linear-gradient(135deg, var(--accent-dark) 0%, var(--primary-color) 100%);
  color: var(--white);
  padding: 3rem 0 1rem;
}

footer h5 {
  color: var(--secondary-color) !important;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

footer p,
footer a,
footer li {
  color: rgba(255, 255, 255, 0.8) !important;
}

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

/* Responsive Design */
@media (max-width: 991px) {
  .navbar-collapse {
    background: rgba(46, 82, 102, 0.98);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
  }
  
  .nav-link {
    padding: 0.75rem 1rem !important;
  }
  
  .display-3 {
    font-size: 2.5rem !important;
  }
  
  .display-4 {
    font-size: 2rem !important;
  }
  
  .hero-section {
    min-height: 80vh;
  }
  
  .portfolio-masonry {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
  }
}

@media (max-width: 767px) {
  .display-3 {
    font-size: 2rem !important;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 0.9rem;
  }
  
  .portfolio-masonry {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  section::before {
    width: 300px;
    height: 300px;
  }
}

@media (max-width: 575px) {
  .container-fluid {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .py-5 {
    padding-top: 2.5rem !important;
    padding-bottom: 2.5rem !important;
  }
  
  .display-3 {
    font-size: 1.75rem !important;
  }
  
  h1 {
    font-size: 1.75rem !important;
  }
  
  h2 {
    font-size: 1.5rem !important;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .btn,
  footer {
    display: none;
  }
  
  body {
    color: #000;
  }
  
  .card {
    break-inside: avoid;
  }
}

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

/* Focus Styles */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

button:focus,
.btn:focus,
a:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

/* Loading States */
.loading {
  pointer-events: none;
  opacity: 0.6;
  position: relative;
}

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

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

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

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

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

.flex-grow-1 {
  flex-grow: 1 !important;
}

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

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

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

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

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

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

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