/* ============================================
   ARCHITECTURAL STUDIO - FORGE RED & IRON GREY
   Modern, Responsive Design System
   ============================================ */

:root {
  --forge-red: #D32F2F;
  --iron-grey: #424242;
  --dark-red: #B71C1C;
  --light-grey: #757575;
  --lighter-grey: #E0E0E0;
  --white: #FFFFFF;
  --black: #212121;
  --transition: all 0.3s 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);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--iron-grey) !important;
  background-color: var(--white) !important;
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--iron-grey) !important;
  letter-spacing: -0.02em;
}

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

/* ============================================
   NAVIGATION BAR
   ============================================ */

.navbar {
  background: linear-gradient(135deg, var(--iron-grey) 0%, var(--black) 100%) !important;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  padding: 1rem 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(33, 33, 33, 0.98) !important;
  padding: 0.5rem 0;
}

.navbar-brand {
  color: var(--white) !important;
  font-size: 1.75rem;
  font-weight: 800 !important;
  letter-spacing: -0.03em;
  transition: var(--transition);
  position: relative;
}

.navbar-brand::before {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--forge-red);
  transition: var(--transition);
}

.navbar-brand:hover::before {
  width: 100%;
}

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

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

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

.navbar-toggler:hover {
  background-color: var(--forge-red) !important;
  transform: scale(1.05);
}

.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(255, 255, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

.nav-link {
  color: rgba(255, 255, 255, 0.85) !important;
  font-weight: 600 !important;
  padding: 0.5rem 1.25rem !important;
  margin: 0 0.25rem;
  border-radius: 8px;
  position: relative;
  transition: var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--forge-red);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--white) !important;
  background-color: rgba(211, 47, 47, 0.1) !important;
  transform: translateY(-2px);
}

.nav-link:hover::after {
  width: 60%;
}

.nav-link.active {
  color: var(--white) !important;
  background-color: var(--forge-red) !important;
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4);
}

.nav-link.active::after {
  width: 0;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--iron-grey) 0%, var(--black) 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 50%, rgba(211, 47, 47, 0.15), transparent 50%);
  z-index: 1;
}

.hero-section .position-absolute {
  z-index: 0;
}

.hero-section .object-fit-cover {
  opacity: 0.2;
  filter: grayscale(50%);
  animation: zoomIn 20s ease-in-out infinite alternate;
}

@keyframes zoomIn {
  from { transform: scale(1); }
  to { transform: scale(1.1); }
}

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

.hero-section .display-1 {
  font-size: clamp(2.5rem, 8vw, 5rem) !important;
  font-weight: 900 !important;
  color: var(--white) !important;
  text-shadow: 2px 4px 12px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 1s ease-out;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.hero-section .display-6 {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 400 !important;
  text-shadow: 1px 2px 8px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease-out 0.2s both;
  font-size: clamp(1rem, 3vw, 1.75rem) !important;
}

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

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

.bi-chevron-down {
  animation: bounce 2s infinite;
  font-size: 2rem;
  color: var(--white) !important;
  cursor: pointer;
  transition: var(--transition);
}

.bi-chevron-down:hover {
  color: var(--forge-red) !important;
  transform: translateY(5px) scale(1.2);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  font-weight: 600 !important;
  border-radius: 12px;
  transition: var(--transition);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
  z-index: 1;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.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 {
  font-size: 1.125rem !important;
  padding: 1rem 2.5rem !important;
}

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

.btn-outline-light:hover {
  color: var(--forge-red) !important;
  background-color: var(--white) !important;
  border-color: var(--white) !important;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.3);
}

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

.btn-light:hover {
  color: var(--white) !important;
  background-color: var(--forge-red) !important;
  border-color: var(--forge-red) !important;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(211, 47, 47, 0.4);
}

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

.btn-outline-dark:hover {
  color: var(--white) !important;
  background-color: var(--forge-red) !important;
  border-color: var(--forge-red) !important;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(211, 47, 47, 0.4);
}

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

.btn-dark:hover {
  color: var(--white) !important;
  background-color: var(--forge-red) !important;
  border-color: var(--forge-red) !important;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(211, 47, 47, 0.4);
}

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

.btn-outline-danger:hover {
  color: var(--white) !important;
  background-color: var(--forge-red) !important;
  border-color: var(--forge-red) !important;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(211, 47, 47, 0.4);
}

.btn-outline-danger.active,
.btn-outline-danger.filter-btn.active {
  color: var(--white) !important;
  background-color: var(--forge-red) !important;
  border-color: var(--forge-red) !important;
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.4);
}

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

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

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

/* ============================================
   STATISTICS SECTION
   ============================================ */

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

.counter {
  font-size: 3rem !important;
  font-weight: 800 !important;
  color: var(--forge-red) !important;
  display: block;
  margin: 1rem 0;
  transition: var(--transition);
}

.bi-people-fill,
.bi-trophy-fill,
.bi-lightning-charge-fill,
.bi-star-fill {
  color: var(--forge-red) !important;
  opacity: 0.9;
  transition: var(--transition);
}

.col-md-3:hover .display-4,
.col-md-3:hover .bi {
  transform: scale(1.1);
  color: var(--dark-red) !important;
}

.col-md-3:hover {
  transform: translateY(-5px);
}

.col-md-3 {
  transition: var(--transition);
}

/* ============================================
   CARDS
   ============================================ */

.card {
  border: none !important;
  border-radius: 16px !important;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  background-color: var(--white) !important;
}

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

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

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

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

.card-title {
  color: var(--iron-grey) !important;
  font-weight: 700 !important;
  font-size: 1.25rem !important;
  margin-bottom: 0.75rem !important;
}

.card-text {
  color: var(--light-grey) !important;
  line-height: 1.6;
}

.card.border-0 {
  border: 1px solid var(--lighter-grey) !important;
}

.program-card {
  background: linear-gradient(135deg, var(--white) 0%, #FAFAFA 100%) !important;
  border-left: 4px solid var(--forge-red) !important;
}

.program-card:hover {
  border-left-width: 8px !important;
}

.card-header {
  background-color: var(--iron-grey) !important;
  color: var(--white) !important;
  font-weight: 600 !important;
  border-bottom: 3px solid var(--forge-red) !important;
}

/* ============================================
   BACKGROUND SECTIONS
   ============================================ */

.bg-light {
  background-color: #F8F9FA !important;
}

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

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

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

.bg-warning {
  background-color: #FFA726 !important;
}

.bg-info {
  background-color: #29B6F6 !important;
}

.bg-success {
  background-color: #66BB6A !important;
}

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

/* ============================================
   IMAGES
   ============================================ */

.img-fluid {
  border-radius: 12px;
  transition: var(--transition);
}

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

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

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

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

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

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

/* ============================================
   HOVER EFFECTS
   ============================================ */

.hover-lift {
  transition: var(--transition);
}

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

/* ============================================
   TEXT UTILITIES
   ============================================ */

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

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

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

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

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

.text-success {
  color: #66BB6A !important;
}

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

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

.lead {
  font-size: 1.25rem !important;
  font-weight: 400;
  line-height: 1.7;
}

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

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

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

.small {
  font-size: 0.875rem !important;
}

/* ============================================
   BADGES
   ============================================ */

.badge {
  padding: 0.5rem 1rem !important;
  font-weight: 600 !important;
  border-radius: 8px;
  font-size: 0.875rem !important;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge.bg-warning {
  color: var(--iron-grey) !important;
}

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

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

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

/* ============================================
   CAROUSEL
   ============================================ */

.carousel {
  border-radius: 16px;
  overflow: hidden;
}

.carousel-indicators [data-bs-target] {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--forge-red) !important;
  border: 2px solid var(--white);
  opacity: 0.5;
  transition: var(--transition);
}

.carousel-indicators .active {
  opacity: 1;
  transform: scale(1.3);
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
  width: 3rem;
  height: 3rem;
  background-color: var(--forge-red);
  border-radius: 50%;
  padding: 1rem;
  transition: var(--transition);
}

.carousel-control-prev:hover .carousel-control-prev-icon,
.carousel-control-next:hover .carousel-control-next-icon {
  background-color: var(--dark-red);
  transform: scale(1.1);
}

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

/* ============================================
   FORMS
   ============================================ */

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

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

.form-control:focus,
.form-select:focus {
  border-color: var(--forge-red) !important;
  box-shadow: 0 0 0 0.25rem rgba(211, 47, 47, 0.15) !important;
  background-color: var(--white) !important;
  color: var(--iron-grey) !important;
}

.form-control::placeholder {
  color: var(--light-grey) !important;
  opacity: 0.6;
}

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

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

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

.form-check-label {
  color: var(--iron-grey) !important;
  cursor: pointer;
  margin-left: 0.5rem;
}

.form-switch .form-check-input {
  width: 2.5rem;
  height: 1.25rem;
}

.invalid-feedback {
  color: var(--forge-red) !important;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.valid-feedback {
  color: #66BB6A !important;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--forge-red) !important;
}

.form-control.is-valid,
.form-select.is-valid {
  border-color: #66BB6A !important;
}

/* ============================================
   ALERTS
   ============================================ */

.alert {
  border-radius: 12px !important;
  border: none !important;
  padding: 1rem 1.5rem !important;
  font-weight: 500;
}

.alert-success {
  background-color: rgba(102, 187, 106, 0.1) !important;
  color: #2E7D32 !important;
  border-left: 4px solid #66BB6A !important;
}

.alert-info {
  background-color: rgba(41, 182, 246, 0.1) !important;
  color: #0277BD !important;
  border-left: 4px solid #29B6F6 !important;
}

/* ============================================
   LIST GROUP
   ============================================ */

.list-group-item {
  border: 1px solid var(--lighter-grey) !important;
  color: var(--iron-grey) !important;
  background-color: var(--white) !important;
  transition: var(--transition);
  padding: 1rem 1.25rem !important;
}

.list-group-item-action:hover {
  background-color: rgba(211, 47, 47, 0.05) !important;
  color: var(--forge-red) !important;
  transform: translateX(5px);
}

.list-group-flush .list-group-item {
  border-width: 0 0 1px !important;
}

/* ============================================
   ACCORDION
   ============================================ */

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

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

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

.accordion-button:not(.collapsed) {
  background-color: var(--forge-red) !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-color: var(--forge-red) !important;
}

.accordion-button::after {
  background-size: 1.25rem;
  transition: var(--transition);
}

.accordion-button:not(.collapsed)::after {
  filter: brightness(0) invert(1);
}

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

/* ============================================
   PROGRESS BAR
   ============================================ */

.progress {
  height: 1.5rem;
  border-radius: 8px;
  background-color: var(--lighter-grey) !important;
  overflow: hidden;
}

.progress-bar {
  background-color: var(--forge-red) !important;
  transition: width 1s ease-in-out;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ============================================
   MODAL
   ============================================ */

.modal-content {
  border-radius: 16px !important;
  border: none !important;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  background: linear-gradient(135deg, var(--iron-grey) 0%, var(--black) 100%) !important;
  color: var(--white) !important;
  border-bottom: 3px solid var(--forge-red) !important;
  padding: 1.5rem !important;
}

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

.modal-body {
  padding: 2rem !important;
}

.btn-close {
  filter: brightness(0) invert(1);
  opacity: 1;
  transition: var(--transition);
}

.btn-close:hover {
  transform: rotate(90deg) scale(1.2);
}

/* ============================================
   RATIO (VIDEO EMBED)
   ============================================ */

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

.ratio-16x9 {
  --bs-aspect-ratio: 56.25%;
}

/* ============================================
   ICONS
   ============================================ */

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

.bi-facebook:hover {
  color: #1877F2 !important;
}

.bi-instagram:hover {
  color: #E4405F !important;
}

.bi-youtube:hover {
  color: #FF0000 !important;
}

.bi-telephone-fill,
.bi-envelope-fill,
.bi-geo-alt-fill {
  color: var(--forge-red) !important;
}

.bi-check-circle-fill {
  color: #66BB6A !important;
}

.bi-info-circle {
  color: #29B6F6 !important;
}

.bi-fire,
.bi-hammer {
  color: var(--forge-red) !important;
}

/* ============================================
   UTILITIES
   ============================================ */

.position-sticky,
.sticky-lg-top {
  position: sticky !important;
  top: 80px !important;
  z-index: 1020;
}

.overflow-hidden {
  overflow: hidden !important;
}

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

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

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

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

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

.gap-1 { gap: 0.25rem !important; }
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }
.gap-4 { gap: 1.5rem !important; }

.g-0 { gap: 0 !important; }
.g-3 > * { padding: 0.5rem !important; }
.g-4 > * { padding: 0.75rem !important; }

/* ============================================
   SPACING
   ============================================ */

.m-3 { margin: 1rem !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-2 { margin-left: 0.5rem !important; }
.ms-4 { margin-left: 1.5rem !important; }
.me-2 { margin-right: 0.5rem !important; }
.me-3 { margin-right: 1rem !important; }
.my-4 { margin-top: 1.5rem !important; margin-bottom: 1.5rem !important; }

.p-0 { padding: 0 !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 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; }
.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-4 { padding-top: 1.5rem !important; padding-bottom: 1.5rem !important; }
.py-5 { padding-top: 3rem !important; padding-bottom: 3rem !important; }
.pt-5 { padding-top: 3rem !important; }
.pb-3 { padding-bottom: 1rem !important; }
.pb-4 { padding-bottom: 1.5rem !important; }

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

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

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

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

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 991.98px) {
  .navbar-collapse {
    background: rgba(33, 33, 33, 0.98);
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
  }
  
  .nav-link {
    padding: 0.75rem 1rem !important;
    margin: 0.25rem 0;
  }
  
  .hero-section .display-1 {
    font-size: 2.5rem !important;
  }
  
  .hero-section .display-6 {
    font-size: 1.25rem !important;
  }
  
  .btn-lg {
    padding: 0.875rem 2rem !important;
    font-size: 1rem !important;
  }
  
  .display-3 {
    font-size: 2.5rem !important;
  }
  
  .display-5 {
    font-size: 2rem !important;
  }
  
  .py-5 {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
  }
  
  .px-lg-5 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .pe-lg-4,
  .pe-lg-5,
  .ps-lg-5 {
    padding-left: 0 !important;
    padding-right: 0 !important;
  }
}

@media (max-width: 767.98px) {
  .container-fluid {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .col-sm-6,
  .col-md-4,
  .col-md-6,
  .col-md-3 {
    margin-bottom: 1.5rem;
  }
  
  .card-img-top {
    height: 200px;
  }
  
  .counter {
    font-size: 2.5rem !important;
  }
  
  .btn-group {
    flex-direction: column;
  }
  
  .btn-group .btn {
    width: 100%;
    margin-bottom: 0.5rem;
  }
}

@media (max-width: 575.98px) {
  .hero-section .display-1 {
    font-size: 2rem !important;
  }
  
  .display-3 {
    font-size: 2rem !important;
  }
  
  .display-5 {
    font-size: 1.5rem !important;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem !important;
  }
  
  .px-5 {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
  
  .fs-4 {
    font-size: 1.25rem !important;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .navbar,
  .btn,
  .modal,
  .carousel-control-prev,
  .carousel-control-next,
  .carousel-indicators {
    display: none !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
  
  .card,
  .bg-dark {
    border: 1px solid #ddd !important;
    background: white !important;
    color: black !important;
  }
}