/* Arctic Amber - Architectural Studio CSS */

:root {
  --primary-color: #2C5F7A;
  --secondary-color: #F4A261;
  --primary-dark: #1e4254;
  --primary-light: #3a7691;
  --secondary-light: #f6b580;
  --secondary-dark: #e8924a;
  --white: #ffffff;
  --light-gray: #f8f9fa;
  --gray: #6c757d;
  --dark-gray: #343a40;
  --shadow-light: rgba(44, 95, 122, 0.1);
  --shadow-medium: rgba(44, 95, 122, 0.2);
  --shadow-dark: rgba(44, 95, 122, 0.3);
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-light) 100%);
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  color: var(--dark-gray);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  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(--primary-color);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
}

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

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

p {
  margin-bottom: 1.25rem;
  font-size: 1.1rem;
  color: var(--gray);
}

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

a:hover,
a:focus {
  color: var(--primary-dark);
  text-decoration: none;
}

/* Bootstrap Overrides */
.btn {
  border-radius: 8px;
  font-weight: 500;
  padding: 12px 24px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.9rem;
  transition: var(--transition-smooth);
  border: 2px solid transparent;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--shadow-medium);
}

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

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--secondary-dark);
  border-color: var(--secondary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(244, 162, 97, 0.3);
}

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

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
}

/* Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(44, 95, 122, 0.1);
  padding: 1rem 0;
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px var(--shadow-light);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary-color);
  transition: var(--transition-smooth);
}

.navbar-brand:hover {
  color: var(--primary-dark);
  transform: scale(1.05);
}

.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--primary-color);
  margin: 0 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: var(--transition-smooth);
  position: relative;
}

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

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

.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='%232C5F7A' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='m4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--secondary-color) 100%);
  color: var(--white);
  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="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="0.5" fill="%23ffffff" opacity="0.1"/><circle cx="80" cy="40" r="0.3" fill="%23ffffff" opacity="0.1"/><circle cx="40" cy="80" r="0.4" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
  opacity: 0.3;
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateX(0px) translateY(0px); }
  25% { transform: translateX(5px) translateY(-5px); }
  50% { transform: translateX(-5px) translateY(5px); }
  75% { transform: translateX(3px) translateY(-3px); }
}

.hero-content {
  position: relative;
  z-index: 2;
  animation: slideInUp 1s ease-out;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

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

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

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

/* Cards */
.card {
  border: none;
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 20px var(--shadow-light);
}

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

.card-img-top {
  transition: var(--transition-smooth);
}

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

.card-body {
  padding: 2rem;
}

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

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

/* Portfolio Grid */
.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  margin-bottom: 2rem;
  cursor: pointer;
}

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

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-align: center;
  transition: var(--transition-smooth);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 0.9;
}

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

/* Forms */
.form-control {
  border: 2px solid rgba(44, 95, 122, 0.1);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(44, 95, 122, 0.25);
}

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

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

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

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

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

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

.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;
  color: rgba(255, 255, 255, 0.7);
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--white);
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 1s ease-in-out infinite;
}

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

/* Utility Classes */
.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);
}

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

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

.section-title h2 {
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-secondary);
  border-radius: 2px;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Mobile Responsiveness */
@media (max-width: 767.98px) {
  .hero {
    text-align: center;
    padding: 2rem 0;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .btn {
    width: 100%;
    margin-bottom: 1rem;
  }
  
  .navbar-nav {
    text-align: center;
    padding: 1rem 0;
  }
  
  .navbar-nav .nav-link {
    margin: 0.25rem 0;
  }
}

@media (max-width: 575.98px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section-title h2 {
    font-size: 2rem;
  }
  
  .card {
    margin-bottom: 2rem;
  }
  
  .portfolio-item img {
    height: 250px;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  :root {
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-medium: rgba(0, 0, 0, 0.5);
    --shadow-dark: rgba(0, 0, 0, 0.7);
  }
  
  .btn {
    border-width: 3px;
  }
  
  .form-control {
    border-width: 3px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}