/* ============================================
   Architectural Studio - Midnight Steel & Crimson Theme
   Primary: #2C3E50 | Secondary: #E74C3C
   ============================================ */

/* ===== CSS Variables ===== */
:root {
  --primary-color: #2C3E50;
  --secondary-color: #E74C3C;
  --primary-dark: #1a252f;
  --primary-light: #34495e;
  --secondary-light: #ec7063;
  --secondary-dark: #c0392b;
  --text-dark: #2c3e50;
  --text-light: #ecf0f1;
  --text-gray: #7f8c8d;
  --bg-light: #f8f9fa;
  --bg-dark: #1a1a1a;
  --white: #ffffff;
  --black: #000000;
  --border-color: #dee2e6;
  --shadow-sm: 0 2px 8px rgba(44, 62, 80, 0.08);
  --shadow-md: 0 4px 16px rgba(44, 62, 80, 0.12);
  --shadow-lg: 0 8px 32px rgba(44, 62, 80, 0.16);
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Playfair Display', Georgia, serif;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: clamp(1.1rem, 2vw, 1.25rem); }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-gray);
  font-size: 1rem;
  line-height: 1.8;
}

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

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

/* ===== Bootstrap 5 Overrides ===== */
.btn {
  font-family: var(--font-primary);
  font-weight: 600;
  padding: 0.875rem 2rem;
  border-radius: 0;
  border: 2px solid transparent;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.875rem;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: left var(--transition-base);
  z-index: -1;
}

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

.btn-primary:active {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(0);
}

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

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

.btn-secondary:active {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  transform: translateY(0);
}

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

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

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

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

/* ===== Navigation ===== */
.navbar {
  background-color: var(--white);
  padding: 1rem 0;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-md);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1px;
  transition: var(--transition-base);
}

.navbar-brand:hover,
.navbar-brand:focus {
  color: var(--secondary-color);
}

.navbar-nav .nav-link {
  color: var(--primary-color);
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  position: relative;
  transition: var(--transition-base);
  font-size: 0.95rem;
  letter-spacing: 0.3px;
}

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

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: 60%;
}

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

.navbar-toggler {
  border: none;
  padding: 0.5rem;
  background-color: var(--primary-color);
  border-radius: 0;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.25);
}

.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, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

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

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,%3Csvg width="100" height="100" xmlns="http://www.w3.org/2000/svg"%3E%3Cdefs%3E%3Cpattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"%3E%3Cpath d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/%3E%3C/pattern%3E%3C/defs%3E%3Crect width="100" height="100" fill="url(%23grid)" /%3E%3C/svg%3E');
  opacity: 0.5;
}

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

.hero-content h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease forwards;
  opacity: 0;
}

.hero-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease 0.2s forwards;
  opacity: 0;
}

.hero-content .btn {
  animation: fadeInUp 1s ease 0.4s forwards;
  opacity: 0;
  margin: 0.5rem;
}

/* ===== Section Styles ===== */
.section {
  padding: 5rem 0;
}

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

.section-title h2 {
  margin-bottom: 1rem;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 3px;
  background: linear-gradient(to right, var(--secondary-color), var(--primary-color));
  margin: 1rem auto 0;
}

.section-subtitle {
  color: var(--text-gray);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Cards ===== */
.card {
  border: none;
  border-radius: 0;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  height: 100%;
}

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

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

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

.card-body {
  padding: 2rem;
}

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

.card-text {
  color: var(--text-gray);
  line-height: 1.8;
}

/* ===== Project/Portfolio Grid ===== */
.project-card {
  position: relative;
  overflow: hidden;
  border-radius: 0;
  margin-bottom: 2rem;
  cursor: pointer;
}

.project-image {
  position: relative;
  overflow: hidden;
  padding-bottom: 75%;
  background-color: var(--bg-light);
}

.project-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
  transform: scale(1.15);
}

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(44, 62, 80, 0.8), rgba(231, 76, 60, 0.9));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: opacity var(--transition-base);
  padding: 2rem;
  color: var(--white);
}

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

.project-overlay h3 {
  color: var(--white);
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  transform: translateY(20px);
  transition: transform var(--transition-base);
}

.project-card:hover .project-overlay h3 {
  transform: translateY(0);
}

.project-overlay p {
  color: rgba(255, 255, 255, 0.9);
  transform: translateY(20px);
  transition: transform var(--transition-base) 0.1s;
}

.project-card:hover .project-overlay p {
  transform: translateY(0);
}

/* ===== Services Section ===== */
.service-item {
  text-align: center;
  padding: 2.5rem 2rem;
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  height: 100%;
  border-left: 3px solid transparent;
}

.service-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
  border-left-color: var(--secondary-color);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: var(--white);
  font-size: 2rem;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  transition: all var(--transition-base);
}

.service-item:hover .service-icon {
  background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
  transform: rotate(180deg);
}

.service-item h4 {
  margin-bottom: 1rem;
}

/* ===== Forms ===== */
.form-control,
.form-select {
  border: 2px solid var(--border-color);
  border-radius: 0;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  transition: all var(--transition-base);
  background-color: var(--white);
  color: var(--text-dark);
}

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

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

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 0.2rem rgba(231, 76, 60, 0.15);
}

.form-control.is-valid {
  border-color: #27ae60;
}

.form-control.is-valid:focus {
  box-shadow: 0 0 0 0.2rem rgba(39, 174, 96, 0.15);
}

.form-label {
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.invalid-feedback {
  display: none;
  color: var(--secondary-color);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.form-control.is-invalid ~ .invalid-feedback {
  display: block;
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* ===== Contact Section ===== */
.contact-info {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--white);
  padding: 3rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-info h3 {
  color: var(--white);
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 2rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background-color: var(--secondary-color);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-right: 1.5rem;
  flex-shrink: 0;
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.contact-details h5 {
  color: var(--white);
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.contact-details p,
.contact-details a {
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
}

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

/* ===== Footer ===== */
.footer {
  background: linear-gradient(to bottom, var(--primary-dark), var(--black));
  color: rgba(255, 255, 255, 0.8);
  padding: 4rem 0 2rem;
}

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

.footer p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: all var(--transition-base);
  display: inline-block;
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--secondary-color);
  padding-left: 0.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-size: 1.1rem;
  transition: all var(--transition-base);
}

.social-link:hover {
  background-color: var(--secondary-color);
  color: var(--white);
  transform: translateY(-3px);
}

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

.footer-bottom p {
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
  font-size: 0.9rem;
}

/* ===== 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);
  }
}

.fade-in {
  animation: fadeIn 0.8s ease forwards;
}

.fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

.slide-in-left {
  animation: slideInLeft 0.8s ease forwards;
}

.slide-in-right {
  animation: slideInRight 0.8s ease forwards;
}

/* ===== Scroll to Top Button ===== */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
  color: var(--white);
  border: none;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: 1000;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
}

.scroll-to-top:hover {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.scroll-to-top.show {
  display: flex;
  animation: fadeIn 0.3s ease;
}

/* ===== Loading Spinner ===== */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(44, 62, 80, 0.1);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Testimonials ===== */
.testimonial-card {
  background: var(--white);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  border-left: 4px solid var(--secondary-color);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.testimonial-text {
  font-style: italic;
  color: var(--text-gray);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
  line-height: 1.8;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-image {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary-color);
}

.author-info h5 {
  margin: 0;
  color: var(--primary-color);
  font-size: 1rem;
}

.author-info p {
  margin: 0;
  color: var(--text-gray);
  font-size: 0.9rem;
}

/* ===== Stats Section ===== */
.stats-section {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--white);
  padding: 4rem 0;
}

.stat-item {
  text-align: center;
  padding: 2rem 1rem;
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--secondary-color);
  font-family: var(--font-heading);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== Accordion Overrides ===== */
.accordion-item {
  border: none;
  border-bottom: 1px solid var(--border-color);
  background-color: transparent;
}

.accordion-button {
  background-color: var(--white);
  color: var(--primary-color);
  font-weight: 600;
  padding: 1.25rem 1.5rem;
  border-radius: 0;
  font-size: 1.05rem;
}

.accordion-button:not(.collapsed) {
  background-color: var(--primary-color);
  color: var(--white);
  box-shadow: none;
}

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

.accordion-button::after {
  filter: brightness(0) saturate(100%);
}

.accordion-button:not(.collapsed)::after {
  filter: brightness(0) invert(1);
}

.accordion-body {
  padding: 1.5rem;
  background-color: var(--bg-light);
  color: var(--text-gray);
}

/* ===== Modal Overrides ===== */
.modal-content {
  border-radius: 0;
  border: none;
}

.modal-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--white);
  border-bottom: none;
  padding: 1.5rem 2rem;
}

.modal-title {
  color: var(--white);
}

.modal-header .btn-close {
  filter: brightness(0) invert(1);
}

.modal-body {
  padding: 2rem;
}

.modal-footer {
  border-top: 1px solid var(--border-color);
  padding: 1.5rem 2rem;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  background-color: transparent;
  padding: 1rem 0;
  margin: 0;
}

.breadcrumb-item a {
  color: var(--primary-color);
  text-decoration: none;
}

.breadcrumb-item.active {
  color: var(--text-gray);
}

/* ===== Responsive Design ===== */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background-color: var(--white);
    padding: 1rem;
    margin-top: 1rem;
    box-shadow: var(--shadow-md);
  }
  
  .navbar-nav .nav-link {
    padding: 0.75rem 1rem;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .hero-section {
    min-height: 70vh;
    padding: 4rem 0;
  }
  
  .contact-info {
    margin-bottom: 2rem;
  }
}

@media (max-width: 767.98px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.875rem; }
  h3 { font-size: 1.5rem; }
  
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.813rem;
  }
  
  .section {
    padding: 2.5rem 0;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
  
  .service-item,
  .testimonial-card {
    padding: 2rem 1.5rem;
  }
  
  .scroll-to-top {
    width: 45px;
    height: 45px;
    bottom: 20px;
    right: 20px;
  }
}

@media (max-width: 575.98px) {
  .hero-content p {
    font-size: 1.1rem;
  }
  
  .section-title h2 {
    font-size: 1.75rem;
  }
  
  .btn {
    display: block;
    width: 100%;
    margin: 0.5rem 0;
  }
  
  .contact-info {
    padding: 2rem 1.5rem;
  }
  
  .footer {
    padding: 3rem 0 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-gray { background-color: var(--bg-light); }

.section-dark {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
  color: var(--white);
}

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

.section-dark p {
  color: rgba(255, 255, 255, 0.9);
}

/* ===== Print Styles ===== */
@media print {
  .navbar,
  .footer,
  .scroll-to-top,
  .btn {
    display: none;
  }
  
  body {
    color: var(--black);
  }
  
  .section {
    page-break-inside: avoid;
  }
}