/* Crimson Steel Architecture Studio CSS */

/* CSS Custom Properties */
:root {
  --primary-color: #DC143C;
  --secondary-color: #2C3E50;
  --primary-light: #E85A73;
  --primary-dark: #B8102E;
  --secondary-light: #3A526B;
  --secondary-dark: #1A2530;
  --text-dark: #2C3E50;
  --text-light: #ffffff;
  --text-muted: #6C757D;
  --bg-light: #F8F9FA;
  --bg-dark: #2C3E50;
  --border-color: #DEE2E6;
  --shadow-light: rgba(44, 62, 80, 0.1);
  --shadow-medium: rgba(44, 62, 80, 0.2);
  --shadow-heavy: rgba(44, 62, 80, 0.3);
  --transition-fast: 0.3s ease;
  --transition-medium: 0.5s ease;
  --transition-slow: 0.8s ease;
  --border-radius: 0.375rem;
  --border-radius-lg: 0.5rem;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Playfair Display', serif;
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

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: 1.25rem;
  font-size: clamp(1rem, 2vw, 1.125rem);
}

.lead {
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  font-weight: 300;
  color: var(--text-muted);
}

/* Bootstrap 5 Overrides */
.btn {
  border-radius: var(--border-radius);
  font-weight: 500;
  padding: 0.75rem 2rem;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.875rem;
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--text-light);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--text-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(220, 20, 60, 0.3);
}

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

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

.btn-secondary {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  color: var(--text-light);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: var(--text-light);
  transform: translateY(-2px);
}

/* Card Overrides */
.card {
  border: none;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 20px var(--shadow-light);
  transition: all var(--transition-fast);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px var(--shadow-medium);
}

.card-header {
  background-color: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem;
}

.card-body {
  padding: 2rem;
}

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

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 20px var(--shadow-light);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.75rem;
  color: var(--primary-color);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.navbar-brand:hover {
  color: var(--primary-dark);
}

.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--text-dark);
  margin: 0 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  position: relative;
}

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

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

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary-color);
}

.navbar-toggler {
  border: none;
  padding: 0.5rem;
  border-radius: var(--border-radius);
}

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

.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='%23DC143C' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='m4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

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

.hero::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>') repeat;
  opacity: 0.1;
}

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

.hero h1 {
  color: var(--text-light);
  font-weight: 700;
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease-out;
}

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

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

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

.section-alt {
  background-color: var(--bg-light);
}

.section-dark {
  background-color: var(--bg-dark);
  color: var(--text-light);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5,
.section-dark h6 {
  color: var(--text-light);
}

/* Project Gallery */
.project-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
  margin-bottom: 2rem;
}

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

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, rgba(220, 20, 60, 0.9), rgba(44, 62, 80, 0.9));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.project-overlay-content {
  text-align: center;
  color: var(--text-light);
  transform: translateY(20px);
  transition: transform var(--transition-fast);
}

.project-item:hover .project-overlay-content {
  transform: translateY(0);
}

/* Services */
.service-card {
  text-align: center;
  padding: 3rem 2rem;
  height: 100%;
  border-radius: var(--border-radius-lg);
  background-color: var(--text-light);
  box-shadow: 0 4px 20px var(--shadow-light);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--shadow-medium);
  border-color: var(--primary-color);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 2rem;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--text-light);
  transition: all var(--transition-fast);
}

.service-card:hover .service-icon {
  transform: rotateY(180deg);
}

/* Forms */
.form-control {
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1rem;
  font-size: 1rem;
  transition: all var(--transition-fast);
  background-color: var(--text-light);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(220, 20, 60, 0.25);
  background-color: var(--text-light);
}

.form-label {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.75rem;
}

.form-floating > .form-control {
  height: calc(3.5rem + 2px);
  line-height: 1.25;
}

.form-floating > label {
  padding: 1rem;
  color: var(--text-muted);
}

/* Footer */
.footer {
  background-color: var(--secondary-color);
  color: var(--text-light);
  padding: 4rem 0 2rem;
}

.footer h5 {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.footer a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 3rem;
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* Social Links */
.social-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

.social-link {
  width: 50px;
  height: 50px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-size: 1.25rem;
}

.social-link:hover {
  background-color: var(--primary-color);
  color: var(--text-light);
  transform: translateY(-3px);
}

/* 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(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

.text-primary {
  color: var(--primary-color);
}

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

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

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

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

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

/* 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(--text-light);
  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(--primary-color);
  color: var(--text-light);
  border: none;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-fast);
  z-index: 1000;
}

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

.back-to-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 2rem 0;
    text-align: center;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .navbar-nav {
    text-align: center;
    padding-top: 1rem;
  }
  
  .navbar-nav .nav-link {
    padding: 1rem;
    margin: 0;
  }
  
  .service-card {
    padding: 2rem 1rem;
    margin-bottom: 2rem;
  }
  
  .project-item {
    margin-bottom: 1.5rem;
  }
  
  .social-links {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 45px;
    height: 45px;
  }
}

@media (max-width: 576px) {
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.8rem;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .service-icon {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
  
  .footer {
    padding: 3rem 0 2rem;
    text-align: center;
  }
}