/* Storm Slate Architecture Studio CSS */
/* Mobile-first responsive design */

:root {
  --primary-color: #2C3E50;
  --secondary-color: #E74C3C;
  --dark-slate: #1A252F;
  --light-slate: #34495E;
  --storm-gray: #95A5A6;
  --cloud-white: #ECF0F1;
  --text-dark: #2C3E50;
  --text-light: #7F8C8D;
  --success-color: #27AE60;
  --warning-color: #F39C12;
  --danger-color: #E74C3C;
  --shadow-light: 0 2px 10px rgba(44, 62, 80, 0.1);
  --shadow-medium: 0 4px 20px rgba(44, 62, 80, 0.15);
  --shadow-heavy: 0 8px 30px rgba(44, 62, 80, 0.25);
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--cloud-white);
  overflow-x: hidden;
}

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

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

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

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

p {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

/* Bootstrap 5 overrides */
.container {
  max-width: 1200px;
}

.btn {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.75rem 2rem;
  border-radius: 0;
  border: 2px solid transparent;
  transition: all var(--transition-medium);
  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 var(--transition-slow);
}

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

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

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

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

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

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

.btn-secondary:hover {
  background-color: #C0392B;
  border-color: #C0392B;
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

/* Navigation */
.navbar {
  background-color: rgba(44, 62, 80, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  transition: all var(--transition-medium);
  box-shadow: var(--shadow-light);
}

.navbar.scrolled {
  background-color: var(--primary-color);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-family: 'Playfair Display', serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
  transition: all var(--transition-medium);
}

.navbar-brand:hover {
  color: white;
  transform: scale(1.05);
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem;
  transition: all var(--transition-medium);
  position: relative;
}

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

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: 100%;
  left: 0;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: white;
}

.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='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='m4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--dark-slate) 0%, var(--primary-color) 100%);
  min-height: 100vh;
  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="grain" patternUnits="userSpaceOnUse" width="100" height="100"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
  animation: grain 8s steps(10) infinite;
}

@keyframes grain {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-5%, -5%); }
  30% { transform: translate(3%, -3%); }
  50% { transform: translate(-2%, 4%); }
  70% { transform: translate(4%, -2%); }
  90% { transform: translate(-3%, 3%); }
}

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

.hero h1 {
  color: white;
  margin-bottom: 2rem;
  opacity: 0;
  animation: slideUp 1s ease-out 0.5s forwards;
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: 3rem;
  opacity: 0;
  animation: slideUp 1s ease-out 0.8s forwards;
}

.hero .btn {
  margin-right: 1rem;
  margin-bottom: 1rem;
  opacity: 0;
  animation: slideUp 1s ease-out 1.1s forwards;
}

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

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

.section-title {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

/* Cards */
.card {
  border: none;
  border-radius: 0;
  box-shadow: var(--shadow-light);
  transition: all var(--transition-medium);
  overflow: hidden;
  background-color: white;
}

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

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

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

.card-body {
  padding: 2rem;
}

.card-title {
  color: var(--primary-color);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.card-text {
  color: var(--text-light);
  line-height: 1.6;
}

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

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

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(44, 62, 80, 0.9), rgba(231, 76, 60, 0.8));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition-medium);
}

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

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

.portfolio-overlay-content {
  text-align: center;
  color: white;
  transform: translateY(20px);
  transition: all var(--transition-medium);
}

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

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

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

/* Forms */
.form-control {
  border: 2px solid #E5E5E5;
  border-radius: 0;
  padding: 1rem;
  font-size: 1rem;
  transition: all var(--transition-medium);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.15);
}

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

.form-group {
  margin-bottom: 2rem;
}

.invalid-feedback {
  display: block;
  color: var(--danger-color);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.valid-feedback {
  display: block;
  color: var(--success-color);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

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

.footer h5 {
  color: white;
  margin-bottom: 1.5rem;
  font-family: 'Inter', sans-serif;
}

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

.footer a:hover {
  color: white;
  text-decoration: underline;
}

.footer-social a {
  display: inline-block;
  margin-right: 1rem;
  font-size: 1.25rem;
  transition: all var(--transition-medium);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  margin-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
}

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

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

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

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

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

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

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

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid transparent;
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    text-align: center;
    padding: 2rem 0;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .navbar-nav {
    background-color: var(--primary-color);
    margin-top: 1rem;
    border-radius: 8px;
    padding: 1rem;
  }
  
  .portfolio-item {
    margin-bottom: 1rem;
  }
  
  .btn {
    display: block;
    width: 100%;
    margin-right: 0;
    margin-bottom: 1rem;
  }
  
  .hero .btn {
    display: inline-block;
    width: auto;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 1rem;
  }
  
  .hero {
    min-height: 80vh;
  }
  
  .card-body {
    padding: 1.5rem;
  }
}

/* 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);
}

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

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

/* Custom spacing */
.py-6 {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.my-6 {
  margin-top: 4rem;
  margin-bottom: 4rem;
}

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 6px;
  color: white;
}

/* Focus styles */
.btn:focus,
.form-control:focus,
.nav-link:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

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