/* ===================================
   Ember Red & Carbon Black Architecture Studio
   Primary: #D32F2F | Secondary: #212121
=================================== */

/* === ROOT VARIABLES === */
:root {
  --primary-color: #D32F2F;
  --primary-dark: #B71C1C;
  --primary-light: #E57373;
  --secondary-color: #212121;
  --secondary-dark: #000000;
  --secondary-light: #424242;
  --white: #FFFFFF;
  --light-gray: #F5F5F5;
  --medium-gray: #9E9E9E;
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-base: 0 4px 6px rgba(211, 47, 47, 0.1);
  --shadow-hover: 0 8px 20px rgba(211, 47, 47, 0.2);
  --shadow-dark: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* === GLOBAL RESETS & BASE === */
* {
  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;
  background-color: var(--white);
  color: var(--secondary-color);
  line-height: 1.6;
  overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6,
.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
  font-weight: 700 !important;
  letter-spacing: -0.02em;
  color: var(--secondary-color) !important;
}

.text-white h1, .text-white h2, .text-white h3, .text-white h4, .text-white h5, .text-white h6,
.text-white .display-1, .text-white .display-2, .text-white .display-3, .text-white .display-4, .text-white .display-5, .text-white .display-6 {
  color: var(--white) !important;
}

.lead {
  font-size: 1.25rem !important;
  font-weight: 400;
  line-height: 1.8;
}

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

.text-white-50 {
  color: rgba(255, 255, 255, 0.7) !important;
}

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

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

/* === NAVBAR === */
.navbar {
  padding: 1rem 0;
  transition: var(--transition-base);
  z-index: 1030;
  background: linear-gradient(180deg, rgba(33, 33, 33, 0.9) 0%, rgba(33, 33, 33, 0.7) 100%) !important;
  backdrop-filter: blur(10px);
}

.navbar.sticky-top {
  background: rgba(33, 33, 33, 0.98) !important;
  box-shadow: var(--shadow-dark);
}

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

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

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  margin: 0 0.25rem;
  transition: var(--transition-base);
  position: relative;
}

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

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

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

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

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(211, 47, 47, 0.3) !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='%23D32F2F' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* === BUTTONS === */
.btn {
  font-weight: 600 !important;
  letter-spacing: 0.02em;
  border-radius: 8px;
  transition: var(--transition-base);
  border: 2px solid transparent;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.btn-lg {
  padding: 0.875rem 2rem !important;
  font-size: 1rem !important;
}

.btn-sm {
  padding: 0.5rem 1rem !important;
  font-size: 0.8rem !important;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--primary-dark) !important;
  border-color: var(--primary-dark) !important;
  color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover) !important;
}

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

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

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

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

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

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

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

.btn-light:hover,
.btn-light:focus {
  background-color: var(--light-gray) !important;
  border-color: var(--light-gray) !important;
  color: var(--secondary-color) !important;
}

.btn-success {
  background-color: #4CAF50 !important;
  border-color: #4CAF50 !important;
  color: var(--white) !important;
}

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

/* === HERO SECTION === */
.hero-section {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.video-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(33, 33, 33, 0.85) 0%, rgba(211, 47, 47, 0.75) 100%);
  z-index: 1;
}

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

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

.hero-section .display-1 {
  font-size: clamp(2.5rem, 8vw, 5rem) !important;
  animation: fadeInUp 1s ease-out;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
}

.hero-section .lead {
  animation: fadeInUp 1s ease-out 0.2s backwards;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
  color: rgba(255, 255, 255, 0.95) !important;
}

.hero-section .btn {
  animation: fadeInUp 1s ease-out 0.4s backwards;
}

/* === SERVICE CARDS === */
.service-card {
  background-color: var(--white);
  border-radius: 12px;
  transition: var(--transition-base);
  border: 2px solid var(--light-gray);
  height: 100%;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-light) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-base);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-color);
}

.service-card:hover::before {
  transform: scaleX(1);
}

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

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

.service-card h3,
.service-card h4 {
  color: var(--secondary-color) !important;
  font-weight: 700 !important;
}

.service-card p {
  color: var(--secondary-light) !important;
}

/* === EQUIPMENT CARD === */
.equipment-card {
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-base);
  background: var(--white);
}

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

.equipment-card .card-img-top {
  height: 200px;
  object-fit: cover;
  transition: var(--transition-base);
}

.equipment-card:hover .card-img-top {
  transform: scale(1.05);
}

.equipment-card .card-body {
  padding: 1.5rem;
}

.equipment-card .card-title {
  color: var(--secondary-color) !important;
  font-weight: 700 !important;
}

/* === CARDS === */
.card {
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-base);
}

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

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

.card-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%) !important;
  color: var(--white) !important;
  border-bottom: none;
  padding: 1.5rem;
  font-weight: 700;
}

.card-body {
  padding: 2rem;
}

/* === BADGES === */
.badge {
  font-weight: 600 !important;
  padding: 0.5rem 1rem !important;
  border-radius: 6px;
  letter-spacing: 0.02em;
}

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

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

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

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

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

.bg-success {
  background-color: #4CAF50 !important;
}

/* === TIMELINE === */
.timeline-item {
  position: relative;
  padding-left: 3rem;
  padding-bottom: 2rem;
  border-left: 3px solid var(--primary-color);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--primary-color);
  border: 4px solid var(--white);
  box-shadow: 0 0 0 4px var(--primary-light);
}

.timeline-item:last-child {
  border-left-color: transparent;
}

.timeline-item .bi {
  color: var(--primary-color) !important;
}

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

.form-control,
.form-select {
  border: 2px solid var(--light-gray) !important;
  border-radius: 8px !important;
  padding: 0.75rem 1rem !important;
  transition: var(--transition-base);
  background-color: var(--white) !important;
  color: var(--secondary-color) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 0 0.2rem rgba(211, 47, 47, 0.15) !important;
  background-color: var(--white) !important;
}

.form-check-input {
  border: 2px solid var(--medium-gray) !important;
  transition: var(--transition-base);
}

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

.form-check-input:focus {
  box-shadow: 0 0 0 0.2rem rgba(211, 47, 47, 0.15) !important;
}

.form-check-label {
  color: var(--secondary-color) !important;
  font-weight: 500;
}

/* === SERVICE OPTION === */
.service-option {
  border: 2px solid var(--light-gray) !important;
  border-radius: 12px !important;
  padding: 1.5rem !important;
  transition: var(--transition-base);
  cursor: pointer;
  background-color: var(--white) !important;
}

.service-option:hover {
  border-color: var(--primary-color) !important;
  background-color: rgba(211, 47, 47, 0.05) !important;
  transform: translateY(-3px);
  box-shadow: var(--shadow-base);
}

.service-option .form-check-input:checked ~ .form-check-label {
  color: var(--primary-color) !important;
}

.service-option:has(.form-check-input:checked) {
  border-color: var(--primary-color) !important;
  background-color: rgba(211, 47, 47, 0.1) !important;
}

/* === STEP INDICATOR === */
.step-indicator {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2rem;
  position: relative;
}

.step-indicator::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--light-gray);
  z-index: 0;
}

.step-indicator .step {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--light-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--medium-gray);
  position: relative;
  z-index: 1;
  transition: var(--transition-base);
}

.step-indicator .step.active {
  background-color: var(--primary-color);
  color: var(--white);
  box-shadow: 0 0 0 4px rgba(211, 47, 47, 0.2);
}

.step-indicator .step.completed {
  background-color: #4CAF50;
  color: var(--white);
}

/* === PROGRESS BAR === */
.progress {
  height: 8px;
  border-radius: 8px;
  background-color: var(--light-gray) !important;
  overflow: hidden;
}

.progress-bar {
  background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-light) 100%) !important;
  transition: width 0.6s ease;
}

/* === FORM STEPS === */
.form-step {
  display: none;
  animation: fadeIn 0.5s ease;
}

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

/* === ALERTS === */
.alert {
  border-radius: 8px;
  border: none;
  padding: 1rem 1.5rem;
  margin-bottom: 1rem;
}

.alert .bi {
  margin-right: 0.5rem;
}

.alert-light {
  background-color: var(--light-gray) !important;
  color: var(--secondary-color) !important;
}

.alert-info {
  background-color: #E3F2FD !important;
  color: #1565C0 !important;
}

.alert-success {
  background-color: #E8F5E9 !important;
  color: #2E7D32 !important;
}

.alert-warning {
  background-color: #FFF3E0 !important;
  color: #E65100 !important;
}

/* === CAROUSEL === */
.carousel {
  position: relative;
}

.carousel-inner {
  border-radius: 12px;
  overflow: hidden;
}

.carousel-item {
  transition: transform 0.6s ease-in-out;
}

.carousel-control-prev,
.carousel-control-next {
  width: 50px;
  height: 50px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 1 !important;
  border-radius: 50%;
  background-color: rgba(33, 33, 33, 0.8) !important;
  transition: var(--transition-base);
}

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

.carousel-control-prev {
  left: -25px;
}

.carousel-control-next {
  right: -25px;
}

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

/* === ACCORDION === */
.accordion {
  --bs-accordion-border-color: var(--light-gray);
  --bs-accordion-btn-focus-box-shadow: 0 0 0 0.2rem rgba(211, 47, 47, 0.15);
}

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

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

.accordion-button {
  font-weight: 600 !important;
  color: var(--secondary-color) !important;
  background-color: var(--white) !important;
  border: none;
  padding: 1.25rem 1.5rem;
  transition: var(--transition-base);
}

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

.accordion-button:focus {
  box-shadow: 0 0 0 0.2rem rgba(211, 47, 47, 0.15) !important;
}

.accordion-button::after {
  filter: brightness(0) invert(1);
}

.accordion-button.collapsed::after {
  filter: none;
}

.accordion-body {
  padding: 1.5rem;
  background-color: var(--white);
  color: var(--secondary-light) !important;
}

/* === PROJECT ITEMS === */
.project-item {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition-base);
}

.project-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(33, 33, 33, 0) 0%, rgba(33, 33, 33, 0.9) 100%);
  opacity: 0;
  transition: var(--transition-base);
  z-index: 1;
}

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

.project-item:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-hover);
}

.project-item img {
  transition: var(--transition-base);
}

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

.project-item .card-title {
  position: relative;
  z-index: 2;
}

/* === FILTER BUTTONS === */
.filter-btn {
  padding: 0.5rem 1.5rem;
  border: 2px solid var(--light-gray);
  background-color: var(--white);
  color: var(--secondary-color) !important;
  border-radius: 25px;
  font-weight: 600;
  transition: var(--transition-base);
  cursor: pointer;
}

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

/* === HOTSPOT BUTTON === */
.hotspot-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: var(--white) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--white);
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4);
  cursor: pointer;
  transition: var(--transition-base);
  animation: pulse 2s infinite;
}

.hotspot-btn:hover {
  transform: scale(1.2);
  background-color: var(--primary-dark);
}

/* === PLAY BUTTON === */
.play-button {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: var(--white) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 4px solid var(--white);
  box-shadow: 0 8px 24px rgba(211, 47, 47, 0.5);
  cursor: pointer;
  transition: var(--transition-base);
  z-index: 10;
}

.play-button:hover {
  transform: scale(1.15);
  background-color: var(--primary-dark);
  box-shadow: 0 12px 32px rgba(211, 47, 47, 0.6);
}

.play-button .bi {
  font-size: 2rem;
  margin-left: 5px;
}

/* === TESTIMONIAL VIDEO === */
.testimonial-video {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  height: 300px;
}

.testimonial-video img,
.testimonial-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* === DYNO CHART === */
.dyno-chart {
  position: relative;
  height: 300px;
  background: linear-gradient(135deg, var(--light-gray) 0%, var(--white) 100%);
  border-radius: 12px;
  padding: 2rem;
  border: 2px solid var(--light-gray);
}

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

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

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

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

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

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

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

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-base);
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

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

.text-white a:hover,
a.text-white:hover {
  color: var(--primary-light) !important;
}

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

.shadow-sm {
  box-shadow: 0 2px 4px rgba(211, 47, 47, 0.08) !important;
}

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

/* === BORDERS === */
.border {
  border: 1px solid var(--light-gray) !important;
}

.border-top {
  border-top: 1px solid var(--light-gray) !important;
}

.border-bottom {
  border-bottom: 1px solid var(--light-gray) !important;
}

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

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

.rounded {
  border-radius: 8px !important;
}

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

/* === SPACING === */
.max-w-800 {
  max-width: 800px;
}

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

.bi-lightning-charge-fill,
.bi-fire,
.bi-cpu-fill,
.bi-tornado,
.bi-wind,
.bi-hurricane,
.bi-soundwave {
  color: var(--primary-color) !important;
}

/* === ANIMATIONS === */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  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);
  }
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4), 0 0 0 0 rgba(211, 47, 47, 0.7);
  }
  50% {
    box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4), 0 0 0 15px rgba(211, 47, 47, 0);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

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

.fade-in-down {
  animation: fadeInDown 0.8s ease-out;
}

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

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

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

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

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

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

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

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

/* === CLOSE BUTTON === */
.btn-close {
  filter: brightness(0) invert(1);
  opacity: 1;
}

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

/* === NAV TABS === */
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.nav .nav-link {
  color: var(--secondary-color) !important;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  transition: var(--transition-base);
  font-weight: 600;
}

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

/* === RESPONSIVE DESIGN === */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background-color: rgba(33, 33, 33, 0.98);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
  }

  .navbar-nav {
    gap: 0.5rem;
  }

  .navbar-dark .navbar-nav .nav-link {
    padding: 0.75rem 1rem !important;
    border-radius: 8px;
  }

  .navbar-dark .navbar-nav .nav-link:hover,
  .navbar-dark .navbar-nav .nav-link.active {
    background-color: rgba(211, 47, 47, 0.2);
  }

  .display-1 {
    font-size: 2.5rem !important;
  }

  .display-3 {
    font-size: 2rem !important;
  }

  .display-4 {
    font-size: 1.75rem !important;
  }

  .hero-section {
    min-height: 80vh;
  }

  .carousel-control-prev,
  .carousel-control-next {
    width: 40px;
    height: 40px;
  }

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

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

  .btn-lg {
    padding: 0.75rem 1.5rem !important;
    font-size: 0.95rem !important;
  }

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

  .timeline-item {
    padding-left: 2rem;
  }
}

@media (max-width: 767.98px) {
  .display-1 {
    font-size: 2rem !important;
  }

  .display-3 {
    font-size: 1.75rem !important;
  }

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

  .hero-section {
    min-height: 70vh;
  }

  .btn {
    font-size: 0.85rem !important;
  }

  .card-body {
    padding: 1.5rem;
  }

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

  .play-button {
    width: 60px;
    height: 60px;
  }

  .play-button .bi {
    font-size: 1.5rem;
  }
}

@media (max-width: 575.98px) {
  .container-fluid {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }

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

  .px-5 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }

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

  .display-1 {
    font-size: 1.75rem !important;
  }

  .display-3 {
    font-size: 1.5rem !important;
  }

  .display-4 {
    font-size: 1.35rem !important;
  }

  .btn-lg {
    padding: 0.625rem 1.25rem !important;
    font-size: 0.9rem !important;
  }

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

  .card-header {
    padding: 1rem;
  }

  .card-body {
    padding: 1rem;
  }

  .accordion-button {
    padding: 1rem;
  }

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

/* === PRINT STYLES === */
@media print {
  .navbar,
  .btn,
  .carousel-control-prev,
  .carousel-control-next {
    display: none !important;
  }

  body {
    background-color: white;
    color: black;
  }

  a {
    text-decoration: underline;
  }
}

/* === ACCESSIBILITY === */
:focus-visible {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
}

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

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

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

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

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

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

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