/* Architecture Studio - Electric Blue & Solar Orange Theme */

/* CSS Custom Properties */
:root {
  --primary-color: #1a237e;
  --secondary-color: #ff6f00;
  --primary-light: #534bae;
  --primary-dark: #000051;
  --secondary-light: #ff9f40;
  --secondary-dark: #c43e00;
  --white: #ffffff;
  --black: #000000;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-700: #495057;
  --gray-900: #212529;
  --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
  --border-radius: 0.375rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--gray-900);
  background-color: var(--white);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

p {
  margin-bottom: 1rem;
  color: var(--gray-700);
  font-size: 1.1rem;
}

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

/* Bootstrap Overrides */
.btn {
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: var(--border-radius);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-color: var(--primary-color);
  color: var(--white);
}

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

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
  border-color: var(--secondary-color);
  color: var(--white);
}

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

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

.btn-outline-primary:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

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

.btn-outline-secondary:hover {
  background: var(--secondary-color);
  border-color: var(--secondary-color);
  color: var(--white);
  transform: translateY(-2px);
}

/* Navigation */
.navbar {
  padding: 1rem 0;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow);
}

.navbar-brand {
  font-weight: 800;
  font-size: 1.75rem;
  color: var(--primary-color) !important;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--gray-700) !important;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem !important;
  border-radius: var(--border-radius);
  position: relative;
  overflow: hidden;
}

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

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

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

.navbar-nav .nav-link.active {
  color: var(--primary-color) !important;
  background: rgba(26, 35, 126, 0.1);
}

.navbar-toggler {
  border: none;
  padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-toggler-icon {
  background-image: none;
  width: 24px;
  height: 2px;
  background: var(--primary-color);
  border-radius: 2px;
  position: relative;
  transition: var(--transition);
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: var(--primary-color);
  border-radius: 2px;
  transition: var(--transition);
}

.navbar-toggler-icon::before {
  top: -8px;
}

.navbar-toggler-icon::after {
  bottom: -8px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
  background: transparent;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
  bottom: 0;
  transform: rotate(-45deg);
}

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

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 100%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 111, 0, 0.1));
  transform: rotate(15deg);
  animation: heroFloat 20s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% {
    transform: rotate(15deg) translateY(0);
  }
  50% {
    transform: rotate(15deg) translateY(-20px);
  }
}

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

.hero h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease-out;
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero .btn {
  animation: fadeInUp 1s ease-out 0.4s both;
}

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

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

.section-title {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--secondary-color), var(--secondary-light));
  border-radius: 2px;
}

/* Cards */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
  height: 100%;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

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

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

.card-body {
  padding: 2rem;
}

.card-title {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

.card-text {
  color: var(--gray-700);
  margin-bottom: 1.5rem;
}

/* Portfolio Grid */
.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  margin-bottom: 2rem;
  cursor: pointer;
}

.portfolio-item img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: var(--transition);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(26, 35, 126, 0.9), rgba(255, 111, 0, 0.9));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  opacity: 0;
  transition: var(--transition);
}

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

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

.portfolio-overlay h4 {
  color: var(--white);
  margin-bottom: 0.5rem;
}

.portfolio-overlay p {
  color: rgba(255, 255, 255, 0.9);
  text-align: center;
  margin: 0;
}

/* Forms */
.form-control {
  border: 2px solid var(--gray-300);
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 0.2rem rgba(255, 111, 0, 0.25);
}

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

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

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

.valid-feedback {
  display: block;
  color: #28a745;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

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

.footer h5 {
  color: var(--secondary-color);
  margin-bottom: 1rem;
  font-weight: 600;
}

.footer p,
.footer a {
  color: rgba(255, 255, 255, 0.8);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 2rem;
  padding-top: 1rem;
  text-align: center;
}

/* Social Links */
.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  margin: 0 0.5rem;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--secondary-color);
  transform: translateY(-3px);
}

/* Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

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

/* Loading Animation */
.loader {
  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 ease-out;
}

.loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--gray-300);
  border-top: 4px solid var(--secondary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .section {
    padding: 3rem 0;
  }
  
  .hero {
    text-align: center;
    padding: 2rem 0;
  }
  
  .navbar-collapse {
    background: rgba(255, 255, 255, 0.98);
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
  }
  
  .portfolio-item img {
    height: 250px;
  }
  
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 1rem;
  }
  
  .portfolio-item img {
    height: 200px;
  }
  
  .card-body {
    padding: 1.5rem;
  }
}

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

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

.bg-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light)) !important;
}

.bg-secondary {
  background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light)) !important;
}

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

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--secondary-color);
  border-radius: 4px;
}

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