/* Industrial Forge Architecture Studio - Modern CSS */

/* CSS Custom Properties */
:root {
  --primary-color: #2C3E50;
  --secondary-color: #E67E22;
  --primary-light: #34495E;
  --primary-dark: #1A252F;
  --secondary-light: #F39C12;
  --secondary-dark: #D35400;
  --white: #FFFFFF;
  --light-gray: #F8F9FA;
  --medium-gray: #6C757D;
  --dark-gray: #343A40;
  --success: #27AE60;
  --warning: #F1C40F;
  --danger: #E74C3C;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: 'Playfair Display', Georgia, serif;
  --shadow-sm: 0 2px 8px rgba(44, 62, 80, 0.1);
  --shadow-md: 0 4px 16px rgba(44, 62, 80, 0.15);
  --shadow-lg: 0 8px 32px rgba(44, 62, 80, 0.2);
  --border-radius: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--primary-color);
  background-color: var(--white);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h5 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
h6 { font-size: clamp(1rem, 1.5vw, 1.25rem); }

p {
  margin-bottom: 1.5rem;
  color: var(--medium-gray);
  font-size: 1.125rem;
}

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

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

/* Bootstrap 5 Overrides */
.btn {
  border-radius: var(--border-radius);
  padding: 0.875rem 2rem;
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: var(--transition);
  border: 2px solid transparent;
  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: var(--transition);
  z-index: 1;
}

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

.btn-primary {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

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

.btn-secondary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
}

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

/* Navigation */
.navbar {
  padding: 1rem 0;
  background-color: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(44, 62, 80, 0.1);
  transition: var(--transition);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.98) !important;
  box-shadow: var(--shadow-sm);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-family: var(--font-secondary);
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color) !important;
  position: relative;
}

.navbar-brand::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 3px;
  background-color: var(--secondary-color);
  transition: var(--transition);
}

.navbar-brand:hover::after {
  width: 100%;
}

.navbar-nav .nav-link {
  color: var(--primary-color) !important;
  font-weight: 500;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem !important;
  position: relative;
  transition: var(--transition);
}

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

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

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

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

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

.navbar-toggler-icon {
  background-image: none;
  width: 25px;
  height: 2px;
  background-color: var(--primary-color);
  position: relative;
  transition: var(--transition);
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
  content: '';
  position: absolute;
  width: 25px;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

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

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

.navbar-toggler.collapsed .navbar-toggler-icon {
  background-color: transparent;
}

.navbar-toggler.collapsed .navbar-toggler-icon::before {
  transform: rotate(45deg);
  top: 0;
}

.navbar-toggler.collapsed .navbar-toggler-icon::after {
  transform: rotate(-45deg);
  bottom: 0;
}

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

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23ffffff" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>')
  opacity: 0.3;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(10px, 10px); }
}

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

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

.hero-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.5rem;
  margin-bottom: 2rem;
  animation: slideInUp 1s ease-out 0.2s both;
}

.hero-cta {
  animation: slideInUp 1s ease-out 0.4s both;
}

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

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

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--secondary-color), var(--secondary-light));
  transform: scaleX(0);
  transition: var(--transition);
}

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

.card:hover::before {
  transform: scaleX(1);
}

.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);
  margin-bottom: 1rem;
}

.card-text {
  color: var(--medium-gray);
}

/* Sections */
.section {
  padding: 5rem 0;
  position: relative;
}

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

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

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

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

.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(45deg, var(--primary-color), var(--secondary-color));
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 0.95;
}

.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 #e9ecef;
  border-radius: var(--border-radius);
  padding: 0.875rem 1rem;
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 0.2rem rgba(230, 126, 34, 0.25);
}

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

.form-floating .form-control {
  height: calc(3.5rem + 2px);
  padding: 1rem 0.75rem;
}

.form-floating .form-control:focus,
.form-floating .form-control:not(:placeholder-shown) {
  padding-top: 1.625rem;
  padding-bottom: 0.625rem;
}

.form-floating label {
  color: var(--medium-gray);
}

.form-floating .form-control:focus ~ label,
.form-floating .form-control:not(:placeholder-shown) ~ label {
  opacity: 0.65;
  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

.invalid-feedback {
  color: var(--danger);
  font-size: 0.875rem;
}

.is-invalid {
  border-color: var(--danger) !important;
}

.is-valid {
  border-color: var(--success) !important;
}

/* Footer */
.footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 3rem 0 1rem;
}

.footer h5 {
  color: var(--white);
  margin-bottom: 1rem;
}

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

.footer a {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition);
}

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

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

.social-links a {
  display: inline-block;
  width: 40px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  margin-right: 0.5rem;
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--secondary-color);
  color: var(--white);
  transform: translateY(-2px);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: var(--transition);
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: var(--transition);
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Loading Spinner */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--white);
  animation: spin 1s ease-in-out infinite;
}

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

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 50px;
  height: 50px;
  background-color: var(--secondary-color);
  color: var(--white);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 1000;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--secondary-dark);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

/* Media Queries */
@media (max-width: 768px) {
  .hero-section {
    height: 70vh;
    text-align: center;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .portfolio-item img {
    height: 250px;
  }
  
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
  }
  
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 45px;
    height: 45px;
    font-size: 1.25rem;
  }
}

@media (max-width: 576px) {
  .hero-section {
    height: 60vh;
  }
  
  .section {
    padding: 2rem 0;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .portfolio-item img {
    height: 200px;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .back-to-top,
  .btn {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
  }
  
  h1, h2, h3 {
    page-break-after: avoid;
  }
}