/* ============================================
   ARCHITECTURAL STUDIO - DEEP NAVY & AMBER THEME
   Primary: #2C3E50 (Deep Navy)
   Secondary: #F39C12 (Amber)
   ============================================ */

/* ===== ROOT VARIABLES ===== */
:root {
  --primary-color: #2C3E50;
  --secondary-color: #F39C12;
  --primary-dark: #1a252f;
  --secondary-dark: #d68910;
  --light-bg: #f8f9fa;
  --white: #ffffff;
  --text-dark: #2C3E50;
  --text-light: #6c757d;
  --shadow: 0 10px 30px rgba(44, 62, 80, 0.15);
  --shadow-lg: 0 20px 60px rgba(44, 62, 80, 0.25);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary-color) !important;
}

.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 800;
  color: var(--primary-color) !important;
}

/* ===== NAVIGATION ===== */
.navbar {
  background-color: rgba(44, 62, 80, 0.95) !important;
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  transition: var(--transition);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.navbar.fixed-top {
  border-bottom: 3px solid var(--secondary-color);
}

.navbar-brand {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--white) !important;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: var(--transition);
}

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

.navbar-dark .navbar-toggler {
  border-color: var(--secondary-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='%23F39C12' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.navbar-nav {
  align-items: center;
}

.nav-item {
  margin: 0 0.5rem;
}

.nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.5rem 1rem !important;
  border-radius: 5px;
  transition: var(--transition);
  position: relative;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--secondary-color) !important;
  background-color: rgba(243, 156, 18, 0.1) !important;
  transform: translateY(-2px);
}

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

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

/* ===== HERO SECTION ===== */
.position-relative.overflow-hidden {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  position: relative;
}

.position-relative.overflow-hidden::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.85)),
    url('data:image/svg+xml,%3Csvg width="100" height="100" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M0 0h100v100H0z" fill="none"/%3E%3Cpath d="M0 0l100 100M100 0L0 100" stroke="%23F39C12" stroke-width="0.5" opacity="0.1"/%3E%3C/svg%3E');
  background-size: cover, 100px 100px;
  z-index: 1;
}

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

.hero-content .display-1 {
  color: var(--white) !important;
  font-size: clamp(2.5rem, 8vw, 5rem);
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
  margin-bottom: 2rem !important;
}

.hero-content .lead {
  color: rgba(255, 255, 255, 0.95) !important;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 400;
  max-width: 700px;
  margin: 0 auto 3rem;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.2);
}

/* ===== BUTTONS ===== */
.btn {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 8px;
  transition: var(--transition);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
  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-primary {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: var(--white) !important;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  background-color: var(--secondary-dark) !important;
  border-color: var(--secondary-dark) !important;
  color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(243, 156, 18, 0.4) !important;
}

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

.btn-outline-primary:hover,
.btn-outline-primary:focus,
.btn-outline-primary:active {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(243, 156, 18, 0.4) !important;
}

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

.btn-secondary:hover,
.btn-secondary:focus,
.btn-secondary:active {
  background-color: var(--primary-dark) !important;
  border-color: var(--primary-dark) !important;
  color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(44, 62, 80, 0.4) !important;
}

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

.btn-outline-secondary:hover {
  background-color: var(--primary-color) !important;
  border-color: var(--primary-color) !important;
  color: var(--white) !important;
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@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 1s ease-out forwards;
}

.animate-slide-up {
  animation: slideUp 1s ease-out 0.3s forwards;
  opacity: 0;
}

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

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

.bg-light {
  background-color: #f8f9fa !important;
}

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

/* ===== IMAGES ===== */
.img-fluid {
  transition: var(--transition);
}

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

.rounded {
  border-radius: 15px !important;
}

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

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

.shadow-sm {
  box-shadow: 0 5px 15px rgba(44, 62, 80, 0.1) !important;
}

/* ===== BADGES ===== */
.badge {
  padding: 0.5rem 1rem;
  font-weight: 600;
  border-radius: 5px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

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

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

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

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

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

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

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

/* ===== CARDS ===== */
.card {
  border: none;
  border-radius: 15px;
  overflow: hidden;
  transition: var(--transition);
  background-color: var(--white);
  height: 100%;
}

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

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

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

.card-body {
  padding: 2rem;
}

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

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

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

/* ===== PORTFOLIO GRID ===== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: 15px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.portfolio-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(44, 62, 80, 0.9), transparent);
  opacity: 0;
  transition: var(--transition);
  z-index: 1;
}

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

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

.portfolio-item img {
  width: 100%;
  height: 350px;
  object-fit: cover;
  transition: var(--transition);
}

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

/* ===== FILTER BUTTONS ===== */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.75rem 2rem;
  background-color: var(--white);
  border: 2px solid var(--primary-color) !important;
  color: var(--primary-color) !important;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 50px;
  transition: var(--transition);
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(243, 156, 18, 0.3);
}

/* ===== FORMS ===== */
.form-label {
  font-weight: 600;
  color: var(--primary-color) !important;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.9rem;
}

.form-control,
.form-select {
  padding: 0.875rem 1.25rem;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  font-size: 1rem;
  transition: var(--transition);
  background-color: var(--white);
  color: var(--text-dark);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--secondary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(243, 156, 18, 0.15) !important;
  outline: none;
}

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

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

/* ===== ICONS ===== */
[class^="bi-"],
[class*=" bi-"] {
  display: inline-block;
  vertical-align: middle;
  font-size: 1.5rem;
  color: var(--secondary-color);
}

.bi {
  transition: var(--transition);
}

.bi:hover {
  transform: scale(1.2);
}

.bi-send,
.bi-telephone-fill,
.bi-envelope-fill,
.bi-geo-alt-fill,
.bi-clock-fill,
.bi-calendar-check,
.bi-subway,
.bi-car-front,
.bi-bicycle,
.bi-box-arrow-in-up-right,
.bi-check-circle-fill,
.bi-gear,
.bi-lightning,
.bi-chat-quote-fill,
.bi-award-fill,
.bi-calendar3,
.bi-geo-alt,
.bi-pencil-square,
.bi-bounding-box-circles,
.bi-tree,
.bi-clipboard-check,
.bi-badge-3d,
.bi-building {
  color: var(--secondary-color) !important;
}

/* ===== TEXT UTILITIES ===== */
.text-uppercase {
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.text-decoration-none:hover {
  color: var(--secondary-color) !important;
}

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

.fst-italic {
  font-style: italic;
}

.small {
  font-size: 0.875rem;
}

.fs-1 {
  font-size: calc(1.375rem + 1.5vw) !important;
}

.fs-3 {
  font-size: calc(1.3rem + 0.6vw) !important;
}

.fs-4 {
  font-size: calc(1.275rem + 0.3vw) !important;
}

.fs-5 {
  font-size: 1.25rem !important;
}

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

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

.border-start {
  border-left: 4px solid var(--secondary-color) !important;
}

.border-3 {
  border-width: 3px !important;
}

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

.opacity-50 {
  opacity: 0.5 !important;
}

.opacity-75 {
  opacity: 0.75 !important;
}

/* ===== PROGRESS BARS ===== */
.progress {
  height: 1.5rem;
  border-radius: 10px;
  background-color: #e9ecef;
  overflow: hidden;
}

.progress-bar {
  background-color: var(--secondary-color) !important;
  transition: width 1.5s ease-in-out;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== SPACING UTILITIES ===== */
.p-3 {
  padding: 1rem !important;
}

.p-4 {
  padding: 1.5rem !important;
}

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

.py-1 {
  padding-top: 0.25rem !important;
  padding-bottom: 0.25rem !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;
}

.ps-3 {
  padding-left: 1rem !important;
}

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

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

.pt-4 {
  padding-top: 1.5rem !important;
}

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

.mt-lg-0 {
  margin-top: 0 !important;
}

.mt-md-0 {
  margin-top: 0 !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;
}

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

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

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

/* ===== GAP UTILITIES ===== */
.gap-3 {
  gap: 1rem !important;
}

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

.g-2 > * {
  padding: 0.5rem;
}

.g-3 > * {
  padding: 1rem;
}

.g-4 > * {
  padding: 1.5rem;
}

.g-5 > * {
  padding: 3rem;
}

/* ===== POSITION UTILITIES ===== */
.position-sticky,
.sticky-lg-top {
  position: sticky;
  top: 100px;
  z-index: 100;
}

.position-absolute {
  position: absolute !important;
}

.position-relative {
  position: relative !important;
}

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

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

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

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

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

/* ===== DISPLAY UTILITIES ===== */
.d-flex {
  display: flex !important;
}

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

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

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

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

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

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

.text-lg-start {
  text-align: left !important;
}

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

.text-md-start {
  text-align: left !important;
}

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

/* ===== SIZE UTILITIES ===== */
.w-100 {
  width: 100% !important;
}

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

/* ===== LIST STYLES ===== */
.list-unstyled {
  list-style: none;
  padding-left: 0;
}

.list-unstyled li {
  padding: 0.5rem 0;
  transition: var(--transition);
}

.list-unstyled li:hover {
  padding-left: 10px;
  color: var(--secondary-color);
}

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

.list-unstyled a:hover {
  color: var(--secondary-color) !important;
}

/* ===== ROUNDED UTILITIES ===== */
.rounded-circle {
  border-radius: 50% !important;
}

/* ===== PRIVACY CONTENT ===== */
.privacy-content {
  background-color: var(--white);
  border-radius: 15px;
  padding: 3rem;
  box-shadow: var(--shadow);
}

.privacy-content h2,
.privacy-content h3,
.privacy-content h4 {
  color: var(--primary-color) !important;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.privacy-content p {
  color: var(--text-light);
  line-height: 1.8;
}

/* ===== FOOTER ===== */
footer {
  background-color: var(--primary-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}

footer h5,
footer .h5 {
  color: var(--white) !important;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

footer p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

footer a {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

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

footer .border-top {
  border-color: rgba(255, 255, 255, 0.1) !important;
  margin-top: 3rem;
  padding-top: 2rem;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background-color: rgba(44, 62, 80, 0.98);
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 1rem;
    box-shadow: var(--shadow);
  }
  
  .nav-item {
    margin: 0.5rem 0;
  }
  
  .hero-content .display-1 {
    font-size: 2.5rem;
  }
  
  .hero-content .lead {
    font-size: 1.1rem;
  }
  
  .btn-lg {
    padding: 0.875rem 2rem !important;
    font-size: 1rem;
  }
  
  section {
    padding: 3rem 0;
  }
  
  .py-5 {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .ps-lg-5,
  .pe-lg-5 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .text-lg-start,
  .text-lg-end {
    text-align: center !important;
  }
  
  .privacy-content {
    padding: 2rem;
  }
  
  .order-lg-1,
  .order-lg-2 {
    order: 0;
  }
}

@media (max-width: 767.98px) {
  .display-1 {
    font-size: 2rem !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;
  }
  
  .btn-group {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .filter-btn {
    width: 100%;
  }
  
  .card-img-top {
    height: 200px;
  }
  
  .privacy-content {
    padding: 1.5rem;
  }
  
  .text-md-start,
  .text-md-end {
    text-align: center !important;
  }
  
  footer {
    text-align: center;
  }
  
  .col-md-3,
  .col-md-4,
  .col-md-6,
  .col-md-8,
  .col-md-12 {
    margin-bottom: 2rem;
  }
}

@media (max-width: 575.98px) {
  .px-4 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .px-5 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 0.95rem;
  }
  
  .navbar-brand {
    font-size: 1.25rem;
  }
  
  .portfolio-item img {
    height: 250px;
  }
  
  .col-6 {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* ===== SCROLL TO TOP BUTTON ===== */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: var(--secondary-color);
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.scroll-to-top:hover {
  background-color: var(--secondary-dark);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* ===== LOADING ANIMATION ===== */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--white);
  animation: spin 1s ease-in-out infinite;
}

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

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 12px;
}

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

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

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

/* ===== ACCESSIBILITY ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ===== PRINT STYLES ===== */
@media print {
  .navbar,
  .btn,
  footer,
  .scroll-to-top {
    display: none !important;
  }
  
  body {
    color: #000;
    background: #fff;
  }
  
  a {
    text-decoration: underline;
  }
}