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

/* ============================================
   CSS Variables & Base Setup
   ============================================ */
:root {
  --primary-color: #2C3E50;
  --secondary-color: #E74C3C;
  --accent-color: #C0392B;
  --light-slate: #34495E;
  --lighter-slate: #4A5F7F;
  --crimson-light: #EC7063;
  --white: #FFFFFF;
  --light-gray: #F8F9FA;
  --medium-gray: #E8EAED;
  --dark-gray: #2C2C2C;
  --text-primary: #2C3E50;
  --text-secondary: #5A6C7D;
  --text-light: #FFFFFF;
  --border-radius: 0;
  --transition-speed: 0.3s;
  --box-shadow: 0 4px 20px rgba(44, 62, 80, 0.1);
  --box-shadow-hover: 0 8px 30px rgba(44, 62, 80, 0.15);
}

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

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

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', 'Helvetica Neue', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-color);
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.25rem;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.8;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-speed) ease;
}

/* ============================================
   Bootstrap 5 Overrides
   ============================================ */
.container {
  max-width: 1320px;
}

.btn {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  padding: 0.875rem 2rem;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  font-size: 1rem;
  letter-spacing: 0.5px;
  transition: all var(--transition-speed) ease;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  color: var(--text-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(231, 76, 60, 0.3);
}

.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(--text-light);
  transform: translateY(-2px);
}

.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(--text-light);
}

.btn-lg {
  padding: 1.125rem 2.5rem;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
}

/* Card Overrides */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: all var(--transition-speed) ease;
  overflow: hidden;
}

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

.card-title {
  color: var(--primary-color);
  font-weight: 700;
}

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

/* Form Controls */
.form-control,
.form-select {
  border: 2px solid var(--medium-gray);
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: all var(--transition-speed) ease;
  color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 0.25rem rgba(231, 76, 60, 0.15);
  color: var(--text-primary);
}

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

/* ============================================
   Navigation
   ============================================ */
.navbar {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(44, 62, 80, 0.08);
  padding: 1rem 0;
  transition: all var(--transition-speed) ease;
}

.navbar.scrolled {
  padding: 0.5rem 0;
  box-shadow: 0 4px 20px rgba(44, 62, 80, 0.15);
}

.navbar-brand {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

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

.navbar-nav .nav-link {
  color: var(--primary-color);
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  margin: 0 0.25rem;
  position: relative;
  font-size: 1rem;
  transition: all var(--transition-speed) ease;
}

.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-speed) ease;
  transform: translateX(-50%);
}

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

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

.navbar-toggler {
  border: none;
  padding: 0.5rem;
  position: relative;
  width: 40px;
  height: 40px;
}

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

.navbar-toggler-icon {
  background-image: none;
  width: 30px;
  height: 2px;
  background-color: var(--primary-color);
  display: block;
  position: relative;
  transition: all var(--transition-speed) ease;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
  content: '';
  width: 30px;
  height: 2px;
  background-color: var(--primary-color);
  display: block;
  position: absolute;
  transition: all var(--transition-speed) ease;
}

.navbar-toggler-icon::before {
  top: -8px;
}

.navbar-toggler-icon::after {
  bottom: -8px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
  background-color: transparent;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
  transform: rotate(45deg);
  top: 0;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
  transform: rotate(-45deg);
  bottom: 0;
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--light-slate) 100%);
  overflow: hidden;
  padding: 4rem 0;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('data:image/svg+xml,%3Csvg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"-%3E%3Cpath d="M0 0h100v100H0z" fill="none"/%3E%3Cpath d="M0 0l100 100M100 0L0 100" stroke="%23ffffff" stroke-width="0.5" opacity="0.1"/%3E%3C/svg%3E');
  opacity: 0.3;
}

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

.hero-section h1 {
  color: var(--text-light);
  font-size: clamp(2.5rem, 6vw, 5rem);
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease forwards;
  opacity: 0;
}

.hero-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease 0.2s forwards;
  opacity: 0;
}

.hero-section .btn {
  animation: fadeInUp 1s ease 0.4s forwards;
  opacity: 0;
}

/* ============================================
   Section Styling
   ============================================ */
section {
  padding: 5rem 0;
  position: relative;
}

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

.section-title h2 {
  position: relative;
  display: inline-block;
  padding-bottom: 1rem;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background-color: var(--secondary-color);
}

.section-title p {
  max-width: 700px;
  margin: 1rem auto 0;
  color: var(--text-secondary);
}

/* Alternate Section Backgrounds */
section:nth-child(even) {
  background-color: var(--light-gray);
}

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

.project-card img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(44, 62, 80, 0.95) 0%, rgba(44, 62, 80, 0.3) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
  opacity: 0;
  transition: opacity var(--transition-speed) ease;
}

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

.project-overlay h3 {
  color: var(--text-light);
  margin-bottom: 0.5rem;
  transform: translateY(20px);
  transition: transform 0.4s ease 0.1s;
}

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

.project-overlay p {
  color: rgba(255, 255, 255, 0.9);
  transform: translateY(20px);
  transition: transform 0.4s ease 0.2s;
}

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

.project-category {
  display: inline-block;
  background-color: var(--secondary-color);
  color: var(--text-light);
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============================================
   Service Cards
   ============================================ */
.service-card {
  padding: 2.5rem;
  text-align: center;
  transition: all var(--transition-speed) ease;
  border: 2px solid var(--medium-gray);
  border-radius: var(--border-radius);
  height: 100%;
  background-color: var(--white);
}

.service-card:hover {
  border-color: var(--secondary-color);
  box-shadow: var(--box-shadow-hover);
  transform: translateY(-5px);
}

.service-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
  color: var(--text-light);
  font-size: 2rem;
  border-radius: 50%;
  transition: all var(--transition-speed) ease;
}

.service-card:hover .service-icon {
  transform: rotateY(360deg);
}

.service-card h3 {
  margin-bottom: 1rem;
  color: var(--primary-color);
}

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

/* ============================================
   Team Section
   ============================================ */
.team-member {
  text-align: center;
  margin-bottom: 2rem;
}

.team-member-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  margin-bottom: 1.5rem;
}

.team-member-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.team-member:hover .team-member-image img {
  transform: scale(1.1);
}

.team-social {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(231, 76, 60, 0.95);
  padding: 1rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
  transform: translateY(100%);
  transition: transform var(--transition-speed) ease;
}

.team-member:hover .team-social {
  transform: translateY(0);
}

.team-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--white);
  color: var(--secondary-color);
  border-radius: 50%;
  transition: all var(--transition-speed) ease;
}

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

.team-member h4 {
  margin-bottom: 0.5rem;
  color: var(--primary-color);
}

.team-member-role {
  color: var(--secondary-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 1px;
}

/* ============================================
   Testimonials
   ============================================ */
.testimonial-card {
  background-color: var(--white);
  padding: 2.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  position: relative;
  margin-bottom: 2rem;
  border-left: 4px solid var(--secondary-color);
}

.testimonial-quote {
  font-size: 3rem;
  color: var(--secondary-color);
  line-height: 1;
  margin-bottom: 1rem;
  opacity: 0.3;
}

.testimonial-text {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

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

.testimonial-author img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author-info h5 {
  margin-bottom: 0.25rem;
  color: var(--primary-color);
  font-size: 1rem;
}

.testimonial-author-info p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ============================================
   Stats/Counter Section
   ============================================ */
.stats-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--light-slate) 100%);
  color: var(--text-light);
  padding: 4rem 0;
}

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

.stat-number {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 0.5rem;
  display: block;
}

.stat-label {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* ============================================
   Contact Form
   ============================================ */
.contact-section {
  background-color: var(--light-gray);
}

.contact-form {
  background-color: var(--white);
  padding: 3rem;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

.contact-info {
  padding: 3rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 2rem;
  gap: 1rem;
}

.contact-info-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--secondary-color);
  color: var(--text-light);
  border-radius: 50%;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-info-content h4 {
  margin-bottom: 0.5rem;
  color: var(--primary-color);
  font-size: 1.125rem;
}

.contact-info-content p {
  margin: 0;
  color: var(--text-secondary);
}

.contact-info-content a {
  color: var(--secondary-color);
  font-weight: 600;
}

.contact-info-content a:hover {
  color: var(--accent-color);
}

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

.form-error.active {
  display: block;
}

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

.form-success {
  background-color: #d4edda;
  border: 1px solid #c3e6cb;
  color: #155724;
  padding: 1rem;
  border-radius: var(--border-radius);
  margin-bottom: 1rem;
  display: none;
}

.form-success.active {
  display: block;
}

/* ============================================
   Footer
   ============================================ */
footer {
  background-color: var(--primary-color);
  color: rgba(255, 255, 255, 0.9);
  padding: 4rem 0 2rem;
}

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

.footer-logo {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 1rem;
}

.footer-description {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1.5rem;
}

.footer-heading {
  color: var(--text-light);
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.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-speed) ease;
  display: inline-block;
}

.footer-links a:hover {
  color: var(--text-light);
  padding-left: 5px;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-links a {
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-light);
  border-radius: 50%;
  transition: all var(--transition-speed) ease;
}

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

.footer-bottom {
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer-bottom a {
  color: var(--text-light);
  font-weight: 600;
}

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

/* ============================================
   Back to Top Button
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: var(--secondary-color);
  color: var(--text-light);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-speed) ease;
  z-index: 999;
  box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

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

.back-to-top:hover {
  background-color: var(--accent-color);
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

/* ============================================
   Loading Animation
   ============================================ */
.loading {
  pointer-events: none;
  opacity: 0.6;
}

.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 0.8s linear infinite;
}

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

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

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

@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 1s ease forwards;
}

.slide-in-left {
  animation: slideInLeft 1s ease forwards;
}

.slide-in-right {
  animation: slideInRight 1s ease forwards;
}

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

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

/* ============================================
   Responsive Design - Mobile First
   ============================================ */

/* Extra Small Devices (portrait phones, less than 576px) */
@media (max-width: 575.98px) {
  :root {
    font-size: 14px;
  }
  
  .hero-section {
    min-height: 70vh;
    padding: 3rem 0;
  }
  
  section {
    padding: 3rem 0;
  }
  
  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
  }
  
  .section-title h2::after {
    width: 60px;
  }
  
  .project-card img {
    height: 250px;
  }
  
  .service-card {
    padding: 2rem;
  }
  
  .contact-form,
  .contact-info {
    padding: 2rem;
  }
  
  .back-to-top {
    width: 45px;
    height: 45px;
    bottom: 20px;
    right: 20px;
  }
  
  .team-member-image img {
    height: 300px;
  }
}

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) and (max-width: 767.98px) {
  .hero-section {
    min-height: 75vh;
  }
  
  .project-card img {
    height: 280px;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  .navbar-nav .nav-link {
    padding: 0.5rem 1rem;
  }
  
  .stat-item {
    border-right: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  .stat-item:last-child {
    border-right: none;
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .navbar-nav .nav-link {
    padding: 0.5rem 1.25rem;
  }
  
  .contact-info {
    border-left: 2px solid var(--medium-gray);
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .container {
    max-width: 1320px;
  }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-primary-custom {
  color: var(--primary-color);
}

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

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

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

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

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

/* ============================================
   Print Styles
   ============================================ */
@media print {
  .navbar,
  .back-to-top,
  footer {
    display: none;
  }
  
  body {
    font-size: 12pt;
  }
  
  a {
    text-decoration: underline;
  }
}