/* Architecture Studio - Primal Red & Iron Grey Theme */

:root {
  --primary-color: #D32F2F;
  --secondary-color: #424242;
  --dark-grey: #212121;
  --light-grey: #F5F5F5;
  --white: #FFFFFF;
  --text-dark: #1A1A1A;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--light-grey);
}

/* Typography */
.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text-dark) !important;
}

.lead {
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--secondary-color) !important;
}

/* Navbar Styles */
.navbar {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--dark-grey) 100%) !important;
  padding: 1rem 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
  transition: var(--transition);
  z-index: 1030;
}

.navbar-dark {
  background-color: var(--secondary-color) !important;
}

.navbar-brand {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--white) !important;
  letter-spacing: 1px;
  transition: var(--transition);
  text-transform: uppercase;
}

.navbar-brand:hover {
  color: var(--primary-color) !important;
  transform: translateY(-2px);
}

.fw-bold {
  font-weight: 700 !important;
}

.navbar-toggler {
  border: 2px solid var(--primary-color) !important;
  padding: 0.5rem 0.75rem;
}

.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='%23D32F2F' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.5) !important;
}

.navbar-nav .nav-link {
  color: var(--white) !important;
  font-weight: 500;
  padding: 0.5rem 1.2rem !important;
  margin: 0 0.2rem;
  transition: var(--transition);
  position: relative;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

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

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

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

.navbar-nav .nav-link.active {
  font-weight: 700;
}

/* Hero Section */
.position-relative {
  position: relative;
}

.overflow-hidden {
  overflow: hidden;
}

.min-vh-100 {
  min-height: 100vh;
}

.position-absolute {
  position: absolute;
}

.position-sticky {
  position: sticky;
  top: 80px;
}

.sticky-bottom {
  position: sticky;
  bottom: 0;
}

.fixed-top {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1030;
}

/* Hero Background Overlay */
.position-relative::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(66, 66, 66, 0.85) 0%, rgba(211, 47, 47, 0.75) 100%);
  z-index: 1;
}

.position-relative > .position-absolute {
  z-index: 0;
}

.position-relative > .d-flex {
  z-index: 2;
  position: relative;
}

/* Text Colors */
.text-white {
  color: var(--white) !important;
}

.text-white-50 {
  color: rgba(255, 255, 255, 0.5) !important;
}

.text-muted {
  color: #6c757d !important;
}

.text-success {
  color: #28a745 !important;
}

/* Buttons */
.btn {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  z-index: -1;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-lg {
  padding: 1rem 2.5rem !important;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 0.5rem 1rem !important;
  font-size: 0.875rem;
}

.btn-primary,
.btn.btn-primary {
  background-color: var(--primary-color) !important;
  color: var(--white) !important;
  border: 2px solid var(--primary-color) !important;
  box-shadow: 0 4px 15px rgba(211, 47, 47, 0.3);
}

.btn-primary:hover,
.btn.btn-primary:hover {
  background-color: #B71C1C !important;
  border-color: #B71C1C !important;
  transform: translateY(-3px);
  box-shadow: 0 6px 25px rgba(211, 47, 47, 0.5) !important;
  color: var(--white) !important;
}

.btn-outline-light {
  border: 2px solid var(--white) !important;
  color: var(--white) !important;
  background-color: transparent !important;
}

.btn-outline-light:hover {
  background-color: var(--white) !important;
  color: var(--primary-color) !important;
  border-color: var(--white) !important;
  transform: translateY(-3px);
}

.btn-outline-dark {
  border: 2px solid var(--secondary-color) !important;
  color: var(--secondary-color) !important;
  background-color: transparent !important;
}

.btn-outline-dark:hover {
  background-color: var(--secondary-color) !important;
  color: var(--white) !important;
  border-color: var(--secondary-color) !important;
  transform: translateY(-3px);
}

.filter-btn {
  background-color: var(--light-grey) !important;
  color: var(--secondary-color) !important;
  border: 2px solid var(--light-grey) !important;
  padding: 0.75rem 1.5rem;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--primary-color) !important;
  color: var(--white) !important;
  border-color: var(--primary-color) !important;
  transform: translateY(-2px);
}

.rounded-circle {
  border-radius: 50% !important;
  width: 45px;
  height: 45px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 !important;
}

/* Cards */
.card {
  border: none !important;
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition);
  background-color: var(--white);
  height: 100%;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2) !important;
}

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

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

.card-body {
  padding: 2rem;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary-color) !important;
  margin-bottom: 1rem;
}

.card-text {
  color: #666;
  line-height: 1.8;
}

.class-card {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  cursor: pointer;
}

.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 1.5rem;
  color: var(--white) !important;
}

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

.border-0 {
  border: 0 !important;
}

/* Shadow Classes */
.shadow {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

.shadow-sm {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1) !important;
}

.shadow-lg {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25) !important;
}

/* Images */
.img-fluid {
  max-width: 100%;
  height: auto;
}

.rounded {
  border-radius: 12px !important;
}

.object-fit-cover {
  object-fit: cover;
  width: 100%;
  height: 100%;
}

/* Sections */
.py-5 {
  padding-top: 5rem !important;
  padding-bottom: 5rem !important;
}

.py-3 {
  padding-top: 2rem !important;
  padding-bottom: 2rem !important;
}

.pt-5 {
  padding-top: 5rem !important;
}

.pt-4 {
  padding-top: 3rem !important;
}

.pb-4 {
  padding-bottom: 3rem !important;
}

.p-0 {
  padding: 0 !important;
}

.p-2 {
  padding: 1rem !important;
}

.p-3 {
  padding: 1.5rem !important;
}

.p-4 {
  padding: 2rem !important;
}

.p-5 {
  padding: 3rem !important;
}

.px-0 {
  padding-left: 0 !important;
  padding-right: 0 !important;
}

.px-3 {
  padding-left: 1.5rem !important;
  padding-right: 1.5rem !important;
}

.px-5 {
  padding-left: 3rem !important;
  padding-right: 3rem !important;
}

.ps-lg-4 {
  padding-left: 2rem !important;
}

.ps-lg-5 {
  padding-left: 3rem !important;
}

.pe-lg-5 {
  padding-right: 3rem !important;
}

.m-0 {
  margin: 0 !important;
}

.mb-0 {
  margin-bottom: 0 !important;
}

.mb-1 {
  margin-bottom: 0.5rem !important;
}

.mb-2 {
  margin-bottom: 1rem !important;
}

.mb-3 {
  margin-bottom: 1.5rem !important;
}

.mb-4 {
  margin-bottom: 2rem !important;
}

.mb-5 {
  margin-bottom: 3rem !important;
}

.mb-lg-0 {
  margin-bottom: 0 !important;
}

.mt-3 {
  margin-top: 1.5rem !important;
}

.mt-4 {
  margin-top: 2rem !important;
}

.mt-5 {
  margin-top: 3rem !important;
}

.my-4 {
  margin-top: 2rem !important;
  margin-bottom: 2rem !important;
}

.ms-auto {
  margin-left: auto !important;
}

.ms-4 {
  margin-left: 2rem !important;
}

.me-2 {
  margin-right: 1rem !important;
}

.me-3 {
  margin-right: 1.5rem !important;
}

.mx-auto {
  margin-left: auto !important;
  margin-right: auto !important;
}

/* Forms */
.form-label {
  font-weight: 600;
  color: var(--secondary-color) !important;
  margin-bottom: 0.5rem;
  display: block;
}

.form-control,
.form-select {
  border: 2px solid #E0E0E0 !important;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  transition: var(--transition);
  background-color: var(--white) !important;
  color: var(--text-dark) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.25) !important;
  outline: none;
}

.form-control::placeholder {
  color: #999;
}

/* Lists */
.list-unstyled {
  padding-left: 0;
  list-style: none;
}

.list-unstyled li {
  padding: 0.5rem 0;
}

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

.text-decoration-none {
  text-decoration: none !important;
}

a:hover {
  color: var(--primary-color) !important;
}

/* Bootstrap Icons */
.bi {
  display: inline-block;
  vertical-align: middle;
}

.bi-clock-history,
.bi-share-fill,
.bi-facebook,
.bi-instagram,
.bi-youtube,
.bi-chat-quote,
.bi-geo-alt-fill,
.bi-telephone-fill,
.bi-envelope-fill,
.bi-clock,
.bi-plus-circle,
.bi-check2,
.bi-arrow-down,
.bi-quote,
.bi-check-circle-fill,
.bi-person-badge,
.bi-lightning-charge,
.bi-calendar-week,
.bi-clipboard-data,
.bi-check-lg {
  color: var(--primary-color) !important;
}

.fs-1 {
  font-size: 3rem !important;
}

/* Ratio for responsive videos/images */
.ratio {
  position: relative;
  width: 100%;
}

.ratio::before {
  display: block;
  padding-top: var(--bs-aspect-ratio);
  content: "";
}

.ratio > * {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.ratio-21x9 {
  --bs-aspect-ratio: 42.857143%;
}

/* Flexbox utilities */
.d-flex {
  display: flex !important;
}

.d-md-flex {
  display: flex !important;
}

.d-block {
  display: block !important;
}

.d-none {
  display: none !important;
}

.d-md-block {
  display: block !important;
}

.flex-column {
  flex-direction: column !important;
}

.flex-wrap {
  flex-wrap: wrap !important;
}

.align-items-center {
  align-items: center !important;
}

.align-items-start {
  align-items: flex-start !important;
}

.justify-content-center {
  justify-content: center !important;
}

.justify-content-start {
  justify-content: flex-start !important;
}

.justify-content-end {
  justify-content: flex-end !important;
}

.gap-2 {
  gap: 1rem !important;
}

.gap-3 {
  gap: 1.5rem !important;
}

/* Grid */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: -0.75rem;
  margin-right: -0.75rem;
}

.g-0 {
  --bs-gutter-x: 0;
  --bs-gutter-y: 0;
}

.g-3 {
  --bs-gutter-x: 1.5rem;
  --bs-gutter-y: 1.5rem;
}

.g-4 {
  --bs-gutter-x: 2rem;
  --bs-gutter-y: 2rem;
}

.row > * {
  padding-left: calc(var(--bs-gutter-x, 1.5rem) * 0.5);
  padding-right: calc(var(--bs-gutter-x, 1.5rem) * 0.5);
  margin-top: var(--bs-gutter-y, 0);
}

/* Text alignment */
.text-center {
  text-align: center !important;
}

.text-end {
  text-align: right !important;
}

.text-lg-end {
  text-align: right !important;
}

/* Width utilities */
.w-100 {
  width: 100% !important;
}

.h-100 {
  height: 100% !important;
}

/* Position utilities */
.top-0 {
  top: 0 !important;
}

.top-50 {
  top: 50% !important;
}

.bottom-0 {
  bottom: 0 !important;
}

.start-0 {
  left: 0 !important;
}

.start-50 {
  left: 50% !important;
}

.translate-middle {
  transform: translate(-50%, -50%) !important;
}

.translate-middle-x {
  transform: translateX(-50%) !important;
}

/* Headings */
.h4 {
  font-size: 1.75rem;
  font-weight: 600;
}

.h5 {
  font-size: 1.5rem;
  font-weight: 600;
}

.h6 {
  font-size: 1.25rem;
  font-weight: 600;
}

/* Small text */
.small {
  font-size: 0.875rem;
}

/* Responsive Column Classes */
.col-4 {
  flex: 0 0 auto;
  width: 33.333333%;
}

.col-5 {
  flex: 0 0 auto;
  width: 41.666667%;
}

.col-7 {
  flex: 0 0 auto;
  width: 58.333333%;
}

.col-8 {
  flex: 0 0 auto;
  width: 66.666667%;
}

.col-12 {
  flex: 0 0 auto;
  width: 100%;
}

/* Order utilities */
.order-md-1 {
  order: 1 !important;
}

.order-md-2 {
  order: 2 !important;
}

/* 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);
  }
}

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

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

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

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

/* Scroll animations */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Container */
.container,
.container-fluid {
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

.container {
  max-width: 1200px;
}

.container-fluid {
  max-width: 100%;
}

/* Responsive Design - Mobile First */
@media (max-width: 575.98px) {
  .display-1 {
    font-size: 3rem !important;
  }
  
  .display-3 {
    font-size: 2.5rem !important;
  }
  
  .display-4 {
    font-size: 2rem !important;
  }
  
  .display-5 {
    font-size: 1.75rem !important;
  }
  
  .display-6 {
    font-size: 1.5rem !important;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 1rem;
  }
  
  .py-5 {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }
  
  .px-3 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .navbar-brand {
    font-size: 1.5rem;
  }
}

@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
  
  .col-md-4 {
    flex: 0 0 auto;
    width: 33.333333%;
  }
  
  .col-md-6 {
    flex: 0 0 auto;
    width: 50%;
  }
  
  .col-md-10 {
    flex: 0 0 auto;
    width: 83.333333%;
  }
  
  .offset-md-1 {
    margin-left: 8.333333%;
  }
  
  .mb-md-0 {
    margin-bottom: 0 !important;
  }
  
  .d-md-none {
    display: none !important;
  }
  
  .d-md-block {
    display: block !important;
  }
  
  .d-md-flex {
    display: flex !important;
  }
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
  
  .col-lg-2 {
    flex: 0 0 auto;
    width: 16.666667%;
  }
  
  .col-lg-3 {
    flex: 0 0 auto;
    width: 25%;
  }
  
  .col-lg-4 {
    flex: 0 0 auto;
    width: 33.333333%;
  }
  
  .col-lg-5 {
    flex: 0 0 auto;
    width: 41.666667%;
  }
  
  .col-lg-6 {
    flex: 0 0 auto;
    width: 50%;
  }
  
  .col-lg-7 {
    flex: 0 0 auto;
    width: 58.333333%;
  }
  
  .col-lg-8 {
    flex: 0 0 auto;
    width: 66.666667%;
  }
  
  .col-lg-10 {
    flex: 0 0 auto;
    width: 83.333333%;
  }
  
  .offset-lg-0 {
    margin-left: 0;
  }
  
  .navbar-expand-lg .navbar-collapse {
    display: flex !important;
    flex-basis: auto;
  }
  
  .navbar-expand-lg .navbar-toggler {
    display: none;
  }
  
  .navbar-expand-lg .navbar-nav {
    flex-direction: row;
  }
  
  .d-lg-block {
    display: block !important;
  }
  
  .text-lg-end {
    text-align: right !important;
  }
  
  .mb-lg-0 {
    margin-bottom: 0 !important;
  }
  
  .ps-lg-4 {
    padding-left: 2rem !important;
  }
  
  .ps-lg-5 {
    padding-left: 3rem !important;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

/* Print styles */
@media print {
  .navbar,
  .btn,
  .navbar-toggler {
    display: none !important;
  }
}

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

/* Focus states for accessibility */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

button:focus,
a:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Smooth transitions for theme elements */
* {
  transition-property: background-color, color, border-color, box-shadow, transform;
  transition-duration: 0.3s;
  transition-timing-function: ease;
}

/* Loading spinner */
.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(211, 47, 47, 0.2);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--light-grey);
}

::-webkit-scrollbar-thumb {
  background: var(--secondary-color);
  border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

/* Selection color */
::selection {
  background-color: var(--primary-color);
  color: var(--white);
}

::-moz-selection {
  background-color: var(--primary-color);
  color: var(--white);
}