/* Storm Onyx Architecture Studio Theme CSS */
:root {
  --primary-color: #2C3E50;
  --secondary-color: #95A5A6;
  --accent-color: #34495E;
  --light-gray: #BDC3C7;
  --white: #FFFFFF;
  --black: #1A1A1A;
  --success: #27AE60;
  --warning: #F39C12;
  --danger: #E74C3C;
  --shadow: rgba(44, 62, 80, 0.15);
  --shadow-dark: rgba(44, 62, 80, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Playfair Display', Georgia, serif;
}

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

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-heading);
  font-weight: 600;
  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, 2.2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.8rem); }
h5 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
h6 { font-size: clamp(1rem, 1.5vw, 1.25rem); }

p {
  margin-bottom: 1.2rem;
  color: var(--accent-color);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
}

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

a:hover {
  color: var(--accent-color);
}

/* Bootstrap 5 Overrides */
.btn {
  border-radius: 0;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.75rem 2rem;
  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(255,255,255,0.1), transparent);
  transition: left 0.5s;
}

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

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

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

.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(--white);
  transform: translateY(-2px);
}

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

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

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

.navbar.scrolled {
  background-color: var(--white);
  box-shadow: 0 2px 20px var(--shadow);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  background-color: var(--primary-color);
  transition: var(--transition);
  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;
  width: 30px;
  height: 30px;
  position: relative;
}

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

.navbar-toggler span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--primary-color);
  margin: 5px 0;
  transition: var(--transition);
}

.navbar-toggler.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar-toggler.active span:nth-child(2) {
  opacity: 0;
}

.navbar-toggler.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 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="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23ffffff" opacity="0.05"/><circle cx="75" cy="75" r="1" fill="%23ffffff" opacity="0.03"/><circle cx="50" cy="10" r="1" fill="%23ffffff" opacity="0.04"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: var(--white);
  text-align: center;
}

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

.hero p {
  color: var(--light-gray);
  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;
}

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

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

.section-title::after {
  content: '';
  width: 80px;
  height: 3px;
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  position: absolute;
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
}

/* Cards */
.card {
  border: none;
  border-radius: 0;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 5px 15px var(--shadow);
  height: 100%;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--shadow-dark);
}

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

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

.card-body {
  padding: 2rem;
  background-color: var(--white);
}

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

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

/* Forms */
.form-control {
  border: 2px solid var(--light-gray);
  border-radius: 0;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: var(--transition);
  background-color: var(--white);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.1);
  background-color: var(--white);
}

.form-control.is-invalid {
  border-color: var(--danger);
}

.form-control.is-valid {
  border-color: var(--success);
}

.invalid-feedback {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.valid-feedback {
  color: var(--success);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* Portfolio Grid */
.portfolio-item {
  position: relative;
  overflow: hidden;
  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(44, 62, 80, 0.9), rgba(52, 73, 94, 0.9));
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

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

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

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

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

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

.footer h5 {
  color: var(--white);
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.footer a {
  color: var(--light-gray);
  text-decoration: none;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--accent-color);
  margin-top: 2rem;
  padding-top: 1rem;
  text-align: center;
  color: var(--light-gray);
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

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

/* Loading Animation */
.loading {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease-out;
}

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

.spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--light-gray);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

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

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--accent-color);
  transform: translateY(-2px);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .section {
    padding: 3rem 0;
  }
  
  .hero {
    min-height: 80vh;
    text-align: center;
  }
  
  .navbar-collapse {
    background-color: var(--white);
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 5px 15px var(--shadow);
  }
  
  .card {
    margin-bottom: 2rem;
  }
  
  .portfolio-item {
    margin-bottom: 1.5rem;
  }
  
  .btn {
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 576px) {
  .hero {
    min-height: 70vh;
    padding: 2rem 0;
  }
  
  .section {
    padding: 2rem 0;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .back-to-top {
    bottom: 15px;
    right: 15px;
    width: 45px;
    height: 45px;
  }
}

/* Utility Classes */
.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.bg-light-gray { background-color: #F8F9FA; }
.border-primary { border-color: var(--primary-color); }
.shadow-custom { box-shadow: 0 5px 15px var(--shadow); }
.shadow-custom-lg { box-shadow: 0 10px 30px var(--shadow-dark); }

/* Print Styles */
@media print {
  .navbar, .footer, .back-to-top {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.4;
    color: black;
  }
  
  .section {
    padding: 1rem 0;
  }
}