/* Crimson Steel Architecture Studio - Complete CSS */

/* ===================== ROOT VARIABLES ===================== */
:root {
  --primary-color: #D32F2F;
  --secondary-color: #424242;
  --dark-color: #1a1a1a;
  --light-color: #f5f5f5;
  --white: #ffffff;
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.25);
}

/* ===================== GLOBAL RESET ===================== */
* {
  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;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--light-color);
  overflow-x: hidden;
}

/* ===================== TYPOGRAPHY ===================== */
.display-1,
.display-3,
.display-4,
.display-5 {
  font-weight: 800 !important;
  letter-spacing: -0.02em !important;
  line-height: 1.1 !important;
}

.lead {
  font-weight: 400 !important;
  opacity: 0.95;
}

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

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

/* ===================== NAVBAR ===================== */
.navbar {
  background: linear-gradient(135deg, var(--secondary-color) 0%, var(--dark-color) 100%) !important;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  padding: 1rem 0 !important;
  z-index: 1030;
}

.navbar.scrolled {
  background: rgba(26, 26, 26, 0.98) !important;
  box-shadow: var(--shadow-lg);
  padding: 0.5rem 0 !important;
}

.navbar-brand {
  font-size: 1.75rem !important;
  color: var(--white) !important;
  font-weight: 800 !important;
  letter-spacing: 0.5px;
  transition: var(--transition);
  text-transform: uppercase;
}

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

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

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.5) !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);
  position: relative;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--white) !important;
  background: rgba(211, 47, 47, 0.15) !important;
  border-radius: 8px;
}

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

/* ===================== HERO SECTION ===================== */
.hero-section {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--dark-color) 0%, var(--secondary-color) 100%);
  padding-top: 80px;
  position: relative;
}

.parallax-bg {
  background: url('data:image/svg+xml,%3Csvg width="100" height="100" xmlns="http://www.w3.org/2000/svg"%3E%3Cpath d="M0 0h50v50H0zM50 50h50v50H50z" fill="%23D32F2F" fill-opacity="0.05"/%3E%3C/svg%3E');
  background-size: 100px 100px;
  opacity: 0.3;
  z-index: 1;
}

.hero-section .container {
  position: relative;
  z-index: 2;
  min-height: calc(100vh - 80px);
}

.hero-section .text-white {
  color: var(--white) !important;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-section .lead {
  color: rgba(255, 255, 255, 0.95) !important;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
}

/* ===================== BUTTONS ===================== */
.btn {
  font-weight: 600 !important;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 8px !important;
  transition: var(--transition) !important;
  border: 2px solid transparent !important;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: 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 !important;
}

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

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
  background: #b71c1c !important;
  border-color: #b71c1c !important;
  color: var(--white) !important;
  box-shadow: 0 6px 20px rgba(183, 28, 28, 0.4) !important;
  transform: translateY(-2px) !important;
}

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

.btn-outline-light:hover,
.btn-outline-light:focus,
.btn-outline-light:active {
  background: var(--white) !important;
  border-color: var(--white) !important;
  color: var(--dark-color) !important;
  transform: translateY(-2px) !important;
}

.btn-light {
  background: var(--white) !important;
  border-color: var(--white) !important;
  color: var(--dark-color) !important;
  box-shadow: var(--shadow-md) !important;
}

.btn-light:hover,
.btn-light:focus,
.btn-light:active {
  background: var(--light-color) !important;
  border-color: var(--light-color) !important;
  color: var(--dark-color) !important;
  transform: translateY(-2px) !important;
}

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

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

.btn-success {
  background: #2e7d32 !important;
  border-color: #2e7d32 !important;
  color: var(--white) !important;
}

.btn-success:hover,
.btn-success:focus,
.btn-success:active {
  background: #1b5e20 !important;
  border-color: #1b5e20 !important;
  color: var(--white) !important;
  transform: translateY(-2px) !important;
}

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

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

@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);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

.animate-bounce {
  animation: bounce 2s ease-in-out infinite;
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* ===================== CARDS ===================== */
.card {
  border: none !important;
  border-radius: 12px !important;
  overflow: hidden;
  transition: var(--transition) !important;
  background: var(--white) !important;
}

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

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

.project-card,
.portfolio-card,
.service-card {
  position: relative;
  border-radius: 12px !important;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  background: var(--white);
}

.project-card:hover,
.portfolio-card:hover,
.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl) !important;
}

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

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

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top, rgba(211, 47, 47, 0.95) 0%, rgba(26, 26, 26, 0.7) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  padding: 2rem;
  opacity: 0;
  transition: var(--transition);
}

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

.portfolio-overlay .h4,
.portfolio-overlay .h5 {
  color: var(--white) !important;
  margin: 0;
  transform: translateY(20px);
  transition: var(--transition);
}

.portfolio-card:hover .portfolio-overlay .h4,
.portfolio-card:hover .portfolio-overlay .h5 {
  transform: translateY(0);
}

/* ===================== BADGES ===================== */
.badge {
  padding: 0.5rem 1rem !important;
  border-radius: 6px !important;
  font-weight: 600 !important;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.75rem !important;
}

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

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

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

.bg-success {
  background: #2e7d32 !important;
  color: var(--white) !important;
}

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

/* ===================== SECTIONS ===================== */
section {
  position: relative;
  overflow: hidden;
}

.py-5 {
  padding: 4rem 0 !important;
}

.py-4 {
  padding: 3rem 0 !important;
}

.pt-5 {
  padding-top: 4rem !important;
}

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

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: 3rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--primary-color);
  border-radius: 2px;
}

/* ===================== IMAGES ===================== */
.img-fluid {
  max-width: 100% !important;
  height: auto !important;
  transition: var(--transition);
}

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

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

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

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

.object-fit-cover {
  object-fit: cover !important;
}

/* ===================== FILTER BUTTONS ===================== */
.filter-btn {
  background: transparent !important;
  border: 2px solid var(--secondary-color) !important;
  color: var(--secondary-color) !important;
  padding: 0.75rem 1.5rem !important;
  margin: 0.5rem !important;
  border-radius: 50px !important;
  font-weight: 600 !important;
  transition: var(--transition) !important;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-color) !important;
  border-color: var(--primary-color) !important;
  color: var(--white) !important;
  transform: translateY(-3px) !important;
  box-shadow: 0 4px 15px rgba(211, 47, 47, 0.3) !important;
}

.portfolio-item {
  transition: var(--transition);
  display: block;
}

.portfolio-item.hide {
  display: none;
}

/* ===================== MODAL ===================== */
.modal-content {
  border-radius: 12px !important;
  border: none !important;
  background: var(--dark-color) !important;
  overflow: hidden;
}

.modal-header {
  background: var(--secondary-color) !important;
  border-bottom: 2px solid var(--primary-color) !important;
  padding: 1.5rem !important;
}

.modal-title {
  color: var(--white) !important;
  font-weight: 700 !important;
}

.modal-body {
  padding: 0 !important;
  background: var(--dark-color) !important;
}

.btn-close,
.btn-close-white {
  filter: brightness(0) invert(1) !important;
  opacity: 1 !important;
}

.btn-close:hover,
.btn-close-white:hover {
  opacity: 0.8 !important;
  transform: scale(1.1);
}

/* ===================== CAROUSEL ===================== */
.carousel {
  background: var(--dark-color);
}

.carousel-inner {
  border-radius: 0 !important;
}

.carousel-control-prev,
.carousel-control-next {
  width: 60px !important;
  height: 60px !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  background: rgba(211, 47, 47, 0.8) !important;
  border-radius: 50% !important;
  margin: 0 20px !important;
  opacity: 1 !important;
  transition: var(--transition) !important;
}

.carousel-control-prev {
  left: 10px !important;
}

.carousel-control-next {
  right: 10px !important;
}

.carousel-control-prev:hover,
.carousel-control-next:hover {
  background: var(--primary-color) !important;
  transform: translateY(-50%) scale(1.1) !important;
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  width: 24px !important;
  height: 24px !important;
}

/* ===================== SERVICE CARDS ===================== */
.service-card {
  background: var(--white) !important;
  border-radius: 12px !important;
  padding: 2rem !important;
  height: 100%;
  transition: var(--transition);
  border: 2px solid transparent !important;
}

.service-card:hover {
  border-color: var(--primary-color) !important;
  box-shadow: 0 8px 30px rgba(211, 47, 47, 0.2) !important;
}

.service-card .bi {
  font-size: 3rem;
  color: var(--primary-color) !important;
  margin-bottom: 1rem;
  transition: var(--transition);
}

.service-card:hover .bi {
  transform: scale(1.1) rotate(5deg);
}

.service-content {
  flex-grow: 1;
}

.expandable-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out;
}

.expandable-content.expanded {
  max-height: 500px;
}

.expand-btn {
  background: transparent !important;
  border: 1px solid var(--primary-color) !important;
  color: var(--primary-color) !important;
  padding: 0.5rem 1rem !important;
  font-size: 0.85rem !important;
  transition: var(--transition) !important;
}

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

.expand-btn.collapsed .bi-dash-circle {
  display: none;
}

.expand-btn:not(.collapsed) .bi-plus-circle {
  display: none;
}

/* ===================== ICONS ===================== */
.bi {
  vertical-align: middle;
  transition: var(--transition);
}

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

.bi-building,
.bi-briefcase,
.bi-tree,
.bi-map,
.bi-box-seam,
.bi-hammer,
.bi-house-door,
.bi-leaf,
.bi-grid-3x3,
.bi-clock-history,
.bi-1-circle,
.bi-2-circle,
.bi-3-circle,
.bi-4-circle,
.bi-calendar-check,
.bi-chat-dots,
.bi-info-circle,
.bi-arrow-left-circle,
.bi-eye,
.bi-cookie,
.bi-shield-check,
.bi-share,
.bi-hand-thumbs-up,
.bi-pencil-square,
.bi-phone,
.bi-geo-alt,
.bi-telephone,
.bi-envelope,
.bi-star-fill,
.bi-geo-alt-fill,
.bi-telephone-fill,
.bi-envelope-fill,
.bi-linkedin,
.bi-instagram,
.bi-facebook,
.bi-twitter {
  display: inline-block;
  vertical-align: middle;
}

/* ===================== FORMS ===================== */
.form-control,
.form-select {
  border: 2px solid #e0e0e0 !important;
  border-radius: 8px !important;
  padding: 0.75rem 1rem !important;
  font-size: 1rem !important;
  transition: var(--transition) !important;
  background: var(--white) !important;
  color: var(--dark-color) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.15) !important;
  outline: none !important;
}

.form-control::placeholder {
  color: #9e9e9e !important;
}

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

.invalid-feedback {
  display: none;
  color: #d32f2f !important;
  font-size: 0.875rem !important;
  margin-top: 0.25rem !important;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: #d32f2f !important;
}

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

.form-check-input {
  width: 1.25rem !important;
  height: 1.25rem !important;
  border: 2px solid #e0e0e0 !important;
  border-radius: 4px !important;
  transition: var(--transition) !important;
  cursor: pointer !important;
}

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

.form-check-input:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.15) !important;
}

.form-check-label {
  cursor: pointer !important;
  user-select: none;
  color: var(--dark-color) !important;
}

/* ===================== ACCORDION ===================== */
.accordion {
  --bs-accordion-border-radius: 12px !important;
  --bs-accordion-border-color: #e0e0e0 !important;
}

.accordion-item {
  border: 2px solid #e0e0e0 !important;
  border-radius: 12px !important;
  margin-bottom: 1rem !important;
  overflow: hidden;
  background: var(--white) !important;
}

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

.accordion-button {
  background: var(--light-color) !important;
  color: var(--dark-color) !important;
  font-weight: 600 !important;
  padding: 1.25rem 1.5rem !important;
  border: none !important;
  transition: var(--transition) !important;
  font-size: 1.1rem !important;
}

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

.accordion-button:focus {
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.15) !important;
  border: none !important;
}

.accordion-button::after {
  filter: brightness(0) !important;
  transition: var(--transition) !important;
}

.accordion-button:not(.collapsed)::after {
  filter: brightness(0) invert(1) !important;
  transform: rotate(180deg) !important;
}

.accordion-collapse {
  border-top: 2px solid #e0e0e0 !important;
}

.accordion-body {
  padding: 1.5rem !important;
  background: var(--white) !important;
  color: var(--dark-color) !important;
  line-height: 1.8;
}

/* ===================== FOOTER ===================== */
footer {
  background: linear-gradient(135deg, var(--dark-color) 0%, var(--secondary-color) 100%);
  color: rgba(255, 255, 255, 0.9) !important;
  padding: 3rem 0 1rem;
  margin-top: 4rem;
}

footer a {
  color: rgba(255, 255, 255, 0.8) !important;
  text-decoration: none !important;
  transition: var(--transition) !important;
}

footer a:hover {
  color: var(--primary-color) !important;
  transform: translateX(5px);
}

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

footer .bi {
  color: var(--primary-color) !important;
  margin-right: 0.5rem;
}

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

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

footer .text-muted {
  color: rgba(255, 255, 255, 0.6) !important;
}

.border-top {
  border-top: 1px solid rgba(255, 255, 255, 0.1) !important;
}

/* ===================== SOCIAL MEDIA ===================== */
.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  margin: 0 0.5rem;
  transition: var(--transition) !important;
  color: var(--white) !important;
}

.social-links a:hover {
  background: var(--primary-color) !important;
  transform: translateY(-5px) scale(1.1) !important;
  color: var(--white) !important;
}

/* ===================== TEXT UTILITIES ===================== */
.text-white {
  color: var(--white) !important;
}

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

.text-muted {
  color: #757575 !important;
}

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

.text-uppercase {
  text-transform: uppercase !important;
  letter-spacing: 1px;
}

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

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

/* ===================== SPACING UTILITIES ===================== */
.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-md-0 { margin-bottom: 0 !important; }
.mb-lg-0 { margin-bottom: 0 !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; }

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

.me-1 { margin-right: 0.25rem !important; }
.me-2 { margin-right: 0.5rem !important; }
.me-3 { margin-right: 1rem !important; }

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

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

.py-2 { padding-top: 0.5rem !important; padding-bottom: 0.5rem !important; }
.py-3 { padding-top: 1rem !important; padding-bottom: 1rem !important; }
.py-4 { padding-top: 1.5rem !important; padding-bottom: 1.5rem !important; }

.px-4 { 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: 1.5rem !important; }

/* ===================== POSITION UTILITIES ===================== */
.position-relative { position: relative !important; }
.position-absolute { position: absolute !important; }
.position-sticky { position: sticky !important; }
.position-fixed { position: fixed !important; }

.fixed-top {
  position: fixed !important;
  top: 0 !important;
  right: 0 !important;
  left: 0 !important;
  z-index: 1030 !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-none { display: none !important; }
.d-inline-block { display: inline-block !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }

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

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

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

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

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

/* ===================== OTHER UTILITIES ===================== */
.overflow-hidden { overflow: hidden !important; }

.opacity-25 { opacity: 0.25 !important; }
.opacity-90 { opacity: 0.9 !important; }

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

.container-fluid {
  width: 100%;
  padding-right: var(--bs-gutter-x, 0.75rem);
  padding-left: var(--bs-gutter-x, 0.75rem);
  margin-right: auto;
  margin-left: auto;
}

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

/* ===================== GRID UTILITIES ===================== */
.g-0 { gap: 0 !important; }
.g-3 { gap: 1rem !important; }
.g-4 { gap: 1.5rem !important; }

/* ===================== RESPONSIVE DESIGN ===================== */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(26, 26, 26, 0.98);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    box-shadow: var(--shadow-lg);
  }

  .nav-link {
    padding: 0.75rem 1rem !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .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;
  }

  .hero-section {
    min-height: auto;
    padding: 100px 0 60px;
  }

  .btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 1rem !important;
  }

  .py-5 {
    padding: 3rem 0 !important;
  }

  .service-card {
    margin-bottom: 1.5rem;
  }

  .project-card img,
  .portfolio-card img {
    height: 250px;
  }

  .carousel-control-prev,
  .carousel-control-next {
    width: 50px !important;
    height: 50px !important;
  }

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

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

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

@media (max-width: 767.98px) {
  .display-1 {
    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;
  }

  .fs-3 {
    font-size: 1.25rem !important;
  }

  .fs-4 {
    font-size: 1.1rem !important;
  }

  .fs-5 {
    font-size: 1rem !important;
  }

  .hero-section {
    padding: 80px 0 40px;
  }

  .btn-lg {
    padding: 0.65rem 1.25rem !important;
    font-size: 0.95rem !important;
  }

  .py-5 {
    padding: 2rem 0 !important;
  }

  .px-4 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }

  .px-5 {
    padding-left: 1.5rem !important;
    padding-right: 1.5rem !important;
  }

  .project-card img,
  .portfolio-card img {
    height: 200px;
  }

  .carousel-control-prev,
  .carousel-control-next {
    width: 40px !important;
    height: 40px !important;
    margin: 0 10px !important;
  }

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

  .service-card .bi {
    font-size: 2.5rem;
  }

  .accordion-button {
    padding: 1rem !important;
    font-size: 1rem !important;
  }

  .accordion-body {
    padding: 1rem !important;
  }

  .modal-dialog {
    margin: 0.5rem !important;
  }

  .filter-btn {
    padding: 0.5rem 1rem !important;
    font-size: 0.85rem !important;
    margin: 0.25rem !important;
  }

  footer {
    text-align: center;
  }

  footer .text-md-start,
  footer .text-md-end {
    text-align: center !important;
  }

  .social-links {
    justify-content: center;
    margin-top: 1rem;
  }
}

@media (min-width: 992px) {
  .d-lg-block {
    display: block !important;
  }

  .offset-lg-1 {
    margin-left: 8.333333% !important;
  }

  .offset-lg-2 {
    margin-left: 16.666667% !important;
  }

  .col-lg-2 {
    flex: 0 0 auto !important;
    width: 16.666667% !important;
  }

  .col-lg-3 {
    flex: 0 0 auto !important;
    width: 25% !important;
  }

  .col-lg-4 {
    flex: 0 0 auto !important;
    width: 33.333333% !important;
  }

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

  .col-lg-6 {
    flex: 0 0 auto !important;
    width: 50% !important;
  }

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

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

  .col-lg-10 {
    flex: 0 0 auto !important;
    width: 83.333333% !important;
  }

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

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

  .ps-lg-4 {
    padding-left: 1.5rem !important;
  }
}

@media (min-width: 768px) {
  .col-md-4 {
    flex: 0 0 auto !important;
    width: 33.333333% !important;
  }

  .col-md-6 {
    flex: 0 0 auto !important;
    width: 50% !important;
  }

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

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

@media (min-width: 1200px) {
  .col-xl-7 {
    flex: 0 0 auto !important;
    width: 58.333333% !important;
  }
}

/* ===================== SCROLL BEHAVIOR ===================== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

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

::-webkit-scrollbar-thumb:hover {
  background: #b71c1c;
}

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

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 30px;
  height: 30px;
  margin: -15px 0 0 -15px;
  border: 3px solid var(--light-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===================== ADDITIONAL ENHANCEMENTS ===================== */
.hover-lift {
  transition: var(--transition);
}

.hover-lift:hover {
  transform: translateY(-5px);
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary-color) 0%, #b71c1c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, #b71c1c 100%) !important;
}

.bg-gradient-dark {
  background: linear-gradient(135deg, var(--dark-color) 0%, var(--secondary-color) 100%) !important;
}

/* ===================== PRINT STYLES ===================== */
@media print {
  .navbar,
  .btn,
  footer,
  .modal {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .container {
    width: 100%;
    max-width: none;
  }
}