/* ============================================
   Architectural Studio - Slate & Copper Theme
   Primary: #2C3E50 (Slate)
   Secondary: #E67E22 (Copper)
   ============================================ */

/* === ROOT VARIABLES === */
:root {
  --primary-color: #2C3E50;
  --secondary-color: #E67E22;
  --primary-dark: #1a252f;
  --secondary-dark: #d35400;
  --light-slate: #34495e;
  --lighter-slate: #4a5f7f;
  --copper-light: #f39c12;
  --text-dark: #2c3e50;
  --text-light: #ecf0f1;
  --bg-light: #f8f9fa;
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 8px rgba(44, 62, 80, 0.1);
  --shadow-md: 0 4px 16px rgba(44, 62, 80, 0.15);
  --shadow-lg: 0 8px 32px rgba(44, 62, 80, 0.2);
}

/* === GLOBAL STYLES === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
  line-height: 1.7;
  overflow-x: hidden;
  background-color: #fff;
}

/* === TYPOGRAPHY === */
.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 700 !important;
  letter-spacing: -0.02em;
  line-height: 1.2 !important;
}

.lead {
  font-size: 1.25rem !important;
  font-weight: 400;
  color: var(--text-light) !important;
}

h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4 {
  font-weight: 600;
  color: var(--primary-color);
}

.text-white, .text-white * {
  color: #ffffff !important;
}

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

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

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

.text-uppercase {
  letter-spacing: 0.1em;
}

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

.fw-semibold {
  font-weight: 600 !important;
}

/* === NAVIGATION === */
.navbar {
  padding: 1rem 0;
  transition: var(--transition-smooth);
  background-color: var(--primary-color) !important;
  z-index: 1030;
}

.navbar.fixed-top {
  box-shadow: var(--shadow-md);
}

.navbar.sticky-top {
  background-color: rgba(44, 62, 80, 0.98) !important;
  backdrop-filter: blur(10px);
}

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

.navbar-brand {
  font-size: 1.5rem !important;
  font-weight: 700 !important;
  color: #ffffff !important;
  letter-spacing: 0.05em;
  transition: var(--transition-smooth);
}

.navbar-brand:hover {
  color: var(--secondary-color) !important;
  transform: translateX(5px);
}

.navbar-toggler {
  border-color: rgba(255, 255, 255, 0.3) !important;
  padding: 0.5rem 0.75rem;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.25rem rgba(230, 126, 34, 0.25) !important;
  border-color: var(--secondary-color) !important;
}

.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") !important;
}

.navbar-nav {
  gap: 0.5rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500 !important;
  padding: 0.5rem 1rem !important;
  transition: var(--transition-smooth);
  position: relative;
}

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

.nav-link:hover,
.nav-link.active {
  color: #ffffff !important;
}

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

.nav-link.active {
  background-color: rgba(230, 126, 34, 0.1) !important;
  border-radius: 0.375rem;
}

/* === BUTTONS === */
.btn {
  font-weight: 600 !important;
  padding: 0.75rem 1.5rem !important;
  border-radius: 0.5rem !important;
  transition: var(--transition-smooth);
  border: 2px solid transparent !important;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.95rem !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-lg {
  padding: 1rem 2rem !important;
  font-size: 1.1rem !important;
}

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

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

/* Primary Button */
.btn-primary {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: #ffffff !important;
}

.btn-primary:hover {
  background-color: var(--secondary-dark) !important;
  border-color: var(--secondary-dark) !important;
  color: #ffffff !important;
}

/* Outline Light Button */
.btn-outline-light {
  border-color: #ffffff !important;
  color: #ffffff !important;
  background-color: transparent !important;
}

.btn-outline-light:hover {
  background-color: #ffffff !important;
  border-color: #ffffff !important;
  color: var(--primary-color) !important;
}

/* Outline Dark Button */
.btn-outline-dark {
  border-color: var(--primary-color) !important;
  color: var(--primary-color) !important;
  background-color: transparent !important;
}

.btn-outline-dark:hover {
  background-color: var(--primary-color) !important;
  border-color: var(--primary-color) !important;
  color: #ffffff !important;
}

/* Light Button */
.btn-light {
  background-color: #ffffff !important;
  border-color: #ffffff !important;
  color: var(--primary-color) !important;
}

.btn-light:hover {
  background-color: var(--bg-light) !important;
  border-color: var(--bg-light) !important;
  color: var(--primary-color) !important;
}

/* Secondary Button */
.btn-secondary {
  background-color: var(--primary-color) !important;
  border-color: var(--primary-color) !important;
  color: #ffffff !important;
}

.btn-secondary:hover {
  background-color: var(--primary-dark) !important;
  border-color: var(--primary-dark) !important;
  color: #ffffff !important;
}

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

/* === HERO SECTION === */
.position-relative {
  position: relative;
}

.position-absolute {
  position: absolute;
}

.position-fixed {
  position: fixed;
}

.position-sticky,
.sticky-top,
.sticky-lg-top {
  position: sticky;
  top: 0;
  z-index: 1020;
}

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

.overflow-hidden {
  overflow: hidden;
}

.object-fit-cover {
  object-fit: cover;
  object-position: center;
}

.top-0 { top: 0; }
.bottom-0 { bottom: 0; }
.start-0 { left: 0; }
.end-0 { right: 0; }
.top-50 { top: 50%; }
.start-50 { left: 50%; }

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

/* Hero Overlay */
.position-relative::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(44, 62, 80, 0.85) 0%, rgba(52, 73, 94, 0.75) 50%, rgba(230, 126, 34, 0.3) 100%);
  z-index: 1;
  pointer-events: none;
}

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

/* === PROJECT CARDS === */
.project-card {
  position: relative;
  overflow: hidden;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  height: 400px;
  background-color: var(--primary-color);
}

.project-card img {
  transition: var(--transition-smooth);
}

.project-card:hover img {
  transform: scale(1.1);
  opacity: 0.8;
}

.project-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(44, 62, 80, 0.95) 0%, rgba(44, 62, 80, 0.7) 70%, transparent 100%);
  transform: translateY(60%);
  transition: var(--transition-smooth);
  padding: 2rem;
  color: #ffffff;
}

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

/* === CARDS === */
.card {
  border: none !important;
  border-radius: 0.75rem !important;
  overflow: hidden;
  transition: var(--transition-smooth);
  background-color: #ffffff;
}

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

.card-img-top {
  border-radius: 0.75rem 0.75rem 0 0 !important;
  height: 250px;
  object-fit: cover;
}

.card-body {
  padding: 1.5rem !important;
}

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

.card-text {
  color: #6c757d;
}

.border-0 {
  border: none !important;
}

/* === SHADOWS === */
.shadow {
  box-shadow: var(--shadow-md) !important;
}

.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}

.shadow-lg {
  box-shadow: var(--shadow-lg) !important;
}

/* === BADGES === */
.badge {
  padding: 0.5rem 1rem !important;
  border-radius: 0.375rem !important;
  font-weight: 600 !important;
  font-size: 0.875rem !important;
  background-color: var(--secondary-color) !important;
  color: #ffffff !important;
}

.rounded-pill {
  border-radius: 50rem !important;
}

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

.form-control,
.form-select {
  padding: 0.75rem 1rem !important;
  border: 2px solid #e0e0e0 !important;
  border-radius: 0.5rem !important;
  transition: var(--transition-smooth);
  font-size: 1rem;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--secondary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(230, 126, 34, 0.15) !important;
  outline: none;
}

.form-control::placeholder {
  color: #adb5bd;
}

.form-check {
  padding-left: 1.75rem;
}

.form-check-input {
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid #dee2e6 !important;
  transition: var(--transition-smooth);
}

.form-check-input:checked {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
}

.form-check-input:focus {
  box-shadow: 0 0 0 0.25rem rgba(230, 126, 34, 0.15) !important;
}

.form-check-label {
  cursor: pointer;
  user-select: none;
}

.needs-validation .form-control:invalid {
  border-color: #dc3545 !important;
}

.needs-validation .form-control:valid {
  border-color: #198754 !important;
}

/* === ACCORDION === */
.accordion {
  border-radius: 0.75rem;
  overflow: hidden;
}

.accordion-item {
  border: none !important;
  border-bottom: 1px solid #e0e0e0 !important;
}

.accordion-item:last-child {
  border-bottom: none !important;
}

.accordion-header {
  margin-bottom: 0;
}

.accordion-button {
  background-color: #ffffff !important;
  color: var(--primary-color) !important;
  font-weight: 600;
  padding: 1.25rem 1.5rem !important;
  border: none !important;
  transition: var(--transition-smooth);
}

.accordion-button:not(.collapsed) {
  background-color: var(--bg-light) !important;
  color: var(--secondary-color) !important;
  box-shadow: none !important;
}

.accordion-button:focus {
  box-shadow: none !important;
  border-color: transparent !important;
}

.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232C3E50'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.accordion-button:not(.collapsed)::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23E67E22'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}

.accordion-body {
  padding: 1.5rem !important;
  background-color: #ffffff;
}

.accordion-collapse.show {
  animation: slideDown 0.3s ease-out;
}

/* === ALERTS === */
.alert {
  border-radius: 0.5rem !important;
  border: none !important;
  padding: 1rem 1.5rem !important;
  margin-bottom: 1.5rem;
}

/* === TABLES === */
.table-responsive {
  border-radius: 0.75rem;
  overflow: hidden;
}

.table {
  margin-bottom: 0;
}

.table-borderless thead {
  background-color: var(--primary-color);
  color: #ffffff;
}

.table-borderless thead th {
  border: none !important;
  padding: 1rem;
  font-weight: 600;
}

.table-borderless tbody td {
  padding: 1rem;
  border: none !important;
}

.table-borderless tbody tr {
  border-bottom: 1px solid #e0e0e0;
}

.table-borderless tbody tr:last-child {
  border-bottom: none;
}

.table-borderless tbody tr:hover {
  background-color: var(--bg-light);
}

/* === BORDERS === */
.border-start {
  border-left: 1px solid #dee2e6 !important;
}

.border-5 {
  border-width: 5px !important;
}

.border-bottom {
  border-bottom: 1px solid #dee2e6 !important;
}

.border-top {
  border-top: 1px solid #dee2e6 !important;
}

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

/* === BACKGROUNDS === */
.bg-white {
  background-color: #ffffff !important;
}

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

.bg-dark {
  background-color: var(--primary-color) !important;
}

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

.rounded {
  border-radius: 0.5rem !important;
}

.rounded-circle {
  border-radius: 50% !important;
}

/* === SPACING === */
.p-0 { padding: 0 !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 3rem !important; }

.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
.py-2 { padding-top: 0.5rem !important; padding-bottom: 0.5rem !important; }
.py-3 { padding-top: 1rem !important; padding-bottom: 1rem !important; }
.py-5 { padding-top: 3rem !important; padding-bottom: 3rem !important; }

.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.px-3 { padding-left: 1rem !important; padding-right: 1rem !important; }
.px-4 { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }
.px-5 { padding-left: 3rem !important; padding-right: 3rem !important; }

.pt-3 { padding-top: 1rem !important; }
.pt-4 { padding-top: 1.5rem !important; }
.pb-3 { padding-bottom: 1rem !important; }
.ps-2 { padding-left: 0.5rem !important; }
.ps-4 { padding-left: 1.5rem !important; }
.ps-lg-5 { padding-left: 3rem !important; }

.m-0 { margin: 0 !important; }
.m-3 { margin: 1rem !important; }

.my-4 { margin-top: 1.5rem !important; margin-bottom: 1.5rem !important; }
.my-5 { margin-top: 3rem !important; margin-bottom: 3rem !important; }

.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.ms-1 { margin-left: 0.25rem !important; }
.ms-2 { margin-left: 0.5rem !important; }
.ms-3 { margin-left: 1rem !important; }
.ms-4 { margin-left: 1.5rem !important; }
.ms-auto { margin-left: auto !important; }

.me-2 { margin-right: 0.5rem !important; }
.me-3 { margin-right: 1rem !important; }

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

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

/* === DISPLAY === */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-flex { display: inline-flex !important; }

/* === FLEXBOX === */
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-row-reverse { flex-direction: row-reverse !important; }
.flex-grow-1 { flex-grow: 1 !important; }
.flex-shrink-0 { flex-shrink: 0 !important; }

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

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

.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }
.gap-4 { gap: 1.5rem !important; }
.gap-5 { gap: 3rem !important; }

/* === TEXT ALIGNMENT === */
.text-center { text-align: center !important; }
.text-start { text-align: left !important; }
.text-end { text-align: right !important; }

/* === LISTS === */
.list-unstyled {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
}

.list-unstyled li {
  margin-bottom: 0.5rem;
}

/* === LINKS === */
a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: var(--transition-smooth);
}

a:hover {
  color: var(--secondary-dark);
  text-decoration: none;
}

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

.hover-text-white:hover {
  color: #ffffff !important;
}

/* === ICONS === */
.fas, .far, .fab, .bi {
  display: inline-block;
  line-height: 1;
}

.fa-phone-alt, .fa-phone, .fa-envelope, .fa-map-marker-alt,
.fa-paper-plane, .fa-arrow-right, .fa-instagram, .fa-linkedin-in,
.fa-facebook-f, .fa-pinterest-p,
.bi-arrow-right, .bi-house-door, .bi-building, .bi-layout-three-columns,
.bi-badge-3d, .bi-recycle, .bi-clipboard-check, .bi-geo-alt,
.bi-telephone, .bi-envelope, .bi-facebook, .bi-instagram, .bi-linkedin,
.bi-twitter, .bi-telephone-fill, .bi-envelope-fill, .bi-check-circle-fill,
.bi-grid-3x3, .bi-box, .bi-tree, .bi-leaf, .bi-kanban, .bi-file-earmark-text,
.bi-shield-check, .bi-lightbulb, .bi-chat-square-dots, .bi-geo-alt-fill,
.bi-info-circle, .bi-award, .bi-calendar3 {
  transition: var(--transition-smooth);
}

/* === OPACITY === */
.opacity-25 { opacity: 0.25 !important; }
.opacity-75 { opacity: 0.75 !important; }

/* === MISC === */
.small, small {
  font-size: 0.875rem;
  color: #6c757d;
}

.fs-1 { font-size: 2.5rem !important; }
.fs-4 { font-size: 1.5rem !important; }
.fs-5 { font-size: 1.25rem !important; }
.fs-6 { font-size: 1rem !important; }

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

.col-12 { width: 100%; }
.col-6 { width: 50%; }

/* === ANIMATIONS === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    max-height: 0;
  }
  to {
    opacity: 1;
    max-height: 1000px;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.animate-fade-in-up {
  animation: fadeInUp 1s ease-out forwards;
}

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

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

/* Staggered Animation */
.animate-stagger > * {
  opacity: 0;
  animation: fadeInUp 0.8s ease-out forwards;
}

.animate-stagger > *:nth-child(1) { animation-delay: 0.1s; }
.animate-stagger > *:nth-child(2) { animation-delay: 0.2s; }
.animate-stagger > *:nth-child(3) { animation-delay: 0.3s; }
.animate-stagger > *:nth-child(4) { animation-delay: 0.4s; }
.animate-stagger > *:nth-child(5) { animation-delay: 0.5s; }
.animate-stagger > *:nth-child(6) { animation-delay: 0.6s; }

/* === HOVER EFFECTS === */
.hover-lift {
  transition: var(--transition-smooth);
}

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

.hover-scale {
  transition: var(--transition-smooth);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* === SCROLL ANIMATIONS === */
.scroll-fade {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* === LOADING STATES === */
.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 3px solid var(--secondary-color);
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 0.8s linear infinite;
}

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

/* === RESPONSIVE TYPOGRAPHY === */
@media (max-width: 768px) {
  .display-1 { font-size: 3rem !important; }
  .display-2 { font-size: 2.5rem !important; }
  .display-3 { font-size: 2rem !important; }
  .display-4 { font-size: 1.75rem !important; }
  .display-5 { font-size: 1.5rem !important; }
  .display-6 { font-size: 1.25rem !important; }
  
  .lead { font-size: 1.1rem !important; }
  .fs-4 { font-size: 1.25rem !important; }
}

/* === MEDIUM DEVICES (768px and up) === */
@media (min-width: 768px) {
  .col-md-3 { flex: 0 0 auto; width: 25%; }
  .col-md-4 { flex: 0 0 auto; width: 33.33333%; }
  .col-md-5 { flex: 0 0 auto; width: 41.66667%; }
  .col-md-6 { flex: 0 0 auto; width: 50%; }
  .col-md-7 { flex: 0 0 auto; width: 58.33333%; }
  
  .text-md-start { text-align: left !important; }
  .text-md-end { text-align: right !important; }
  
  .mt-md-0 { margin-top: 0 !important; }
  .mb-md-0 { margin-bottom: 0 !important; }
  
  .p-md-5 { padding: 3rem !important; }
  
  .order-md-1 { order: 1; }
  .order-md-2 { order: 2; }
}

/* === LARGE DEVICES (992px and up) === */
@media (min-width: 992px) {
  .navbar-expand-lg .navbar-collapse {
    display: flex !important;
    flex-basis: auto;
  }
  
  .navbar-expand-lg .navbar-toggler {
    display: none;
  }
  
  .col-lg-2 { flex: 0 0 auto; width: 16.66667%; }
  .col-lg-3 { flex: 0 0 auto; width: 25%; }
  .col-lg-4 { flex: 0 0 auto; width: 33.33333%; }
  .col-lg-5 { flex: 0 0 auto; width: 41.66667%; }
  .col-lg-6 { flex: 0 0 auto; width: 50%; }
  .col-lg-7 { flex: 0 0 auto; width: 58.33333%; }
  .col-lg-8 { flex: 0 0 auto; width: 66.66667%; }
  .col-lg-9 { flex: 0 0 auto; width: 75%; }
  .col-lg-10 { flex: 0 0 auto; width: 83.33333%; }
  
  .offset-lg-1 { margin-left: 8.33333%; }
  .offset-lg-2 { margin-left: 16.66667%; }
  
  .order-lg-1 { order: 1; }
  .order-lg-2 { order: 2; }
  
  .mb-lg-0 { margin-bottom: 0 !important; }
  .mt-lg-0 { margin-top: 0 !important; }
  
  .text-lg-start { text-align: left !important; }
  .text-lg-end { text-align: right !important; }
  
  .ps-lg-5 { padding-left: 3rem !important; }
  
  .d-lg-block { display: block !important; }
  .d-lg-none { display: none !important; }
  
  .sticky-lg-top {
    position: sticky;
    top: 0;
    z-index: 1020;
  }
}

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

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

@media (min-width: 768px) {
  .container { max-width: 720px; }
}

@media (min-width: 992px) {
  .container { max-width: 960px; }
}

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

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

/* === GRID SYSTEM === */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -15px;
  margin-left: -15px;
}

.g-0 {
  margin-right: 0;
  margin-left: 0;
}

.g-0 > * {
  padding-right: 0;
  padding-left: 0;
}

.g-3 {
  margin-right: -0.5rem;
  margin-left: -0.5rem;
}

.g-3 > * {
  padding-right: 0.5rem;
  padding-left: 0.5rem;
  margin-bottom: 1rem;
}

.g-4 {
  margin-right: -0.75rem;
  margin-left: -0.75rem;
}

.g-4 > * {
  padding-right: 0.75rem;
  padding-left: 0.75rem;
  margin-bottom: 1.5rem;
}

.g-5 {
  margin-right: -1.5rem;
  margin-left: -1.5rem;
}

.g-5 > * {
  padding-right: 1.5rem;
  padding-left: 1.5rem;
  margin-bottom: 3rem;
}

[class*='col-'] {
  flex-shrink: 0;
  width: 100%;
  max-width: 100%;
  padding-right: 15px;
  padding-left: 15px;
}

/* === FOOTER === */
footer {
  background-color: var(--primary-color);
  color: rgba(255, 255, 255, 0.9);
}

footer h2, footer h3, footer h4, footer h5, footer h6 {
  color: #ffffff;
}

footer a {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition-smooth);
}

footer a:hover {
  color: var(--secondary-color);
  padding-left: 5px;
}

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

/* === SOCIAL MEDIA ICONS === */
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  transition: var(--transition-smooth);
  text-decoration: none;
}

.social-icon:hover {
  background-color: var(--secondary-color);
  color: #ffffff;
  transform: translateY(-3px);
}

/* === CUSTOM UTILITIES === */
.text-copper {
  color: var(--secondary-color) !important;
}

.text-slate {
  color: var(--primary-color) !important;
}

.bg-copper {
  background-color: var(--secondary-color) !important;
}

.bg-slate {
  background-color: var(--primary-color) !important;
}

.border-copper {
  border-color: var(--secondary-color) !important;
}

.border-slate {
  border-color: var(--primary-color) !important;
}

/* === SMOOTH SCROLL BEHAVIOR === */
html.smooth-scroll {
  scroll-behavior: smooth;
}

/* === SELECTION === */
::selection {
  background-color: var(--secondary-color);
  color: #ffffff;
}

::-moz-selection {
  background-color: var(--secondary-color);
  color: #ffffff;
}

/* === SCROLLBAR === */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 5px;
}

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

/* === PRINT STYLES === */
@media print {
  .navbar,
  .btn,
  footer,
  .navbar-toggler {
    display: none !important;
  }
  
  body {
    background: #ffffff;
    color: #000000;
  }
  
  .container {
    max-width: 100%;
  }
}