/* ===================================
   Components - Reusable UI Elements
   =================================== */

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--container-padding);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--bg-gradient-primary);
    color: var(--text-white);
    border-color: var(--primary-blue);
}

.btn-primary:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary);
}

.btn-primary:active {
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--text-white);
    transform: translateY(-3px);
}

.btn-accent {
    background: var(--bg-gradient-accent);
    color: var(--text-white);
    border-color: var(--accent-orange);
}

.btn-accent:hover {
    background: var(--accent-orange-dark);
    border-color: var(--accent-orange-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-accent);
}

.btn-white {
    background: var(--bg-white);
    color: var(--primary-blue);
    border-color: var(--bg-white);
}

.btn-white:hover {
    background: var(--bg-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 1.125rem 2.5rem;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
}

/* Button Icons */
.btn-icon {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
    transform: translateX(4px);
}

/* Cards */
.card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-slow);
    border: 1px solid var(--border-light);
}

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

.card-dark {
    background: var(--bg-dark);
    color: var(--text-white);
}

.card-gradient {
    background: var(--bg-gradient-primary);
    color: var(--text-white);
}

/* Icon Cards */
.icon-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-3xl);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    transition: all var(--transition-slow);
    border: 1px solid var(--border-light);
}

.icon-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-blue);
}

.icon-card:hover .icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    background: var(--bg-gradient-primary);
}

.icon-card:hover .icon-wrapper svg {
    fill: var(--text-white);
}

.icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-slow);
}

.icon-wrapper svg {
    width: 40px;
    height: 40px;
    fill: var(--primary-blue);
    transition: fill var(--transition-base);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: var(--primary-blue);
    color: var(--text-white);
}

.badge-accent {
    background: var(--accent-orange);
    color: var(--text-white);
}

.badge-outline {
    background: transparent;
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-subtitle {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-tight);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    line-height: var(--line-height-relaxed);
}

.section-line {
    width: 80px;
    height: 4px;
    background: var(--bg-gradient-primary);
    margin: var(--spacing-lg) auto;
    border-radius: var(--radius-full);
}

/* Feature List */
.feature-list {
    list-style: none;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
}

.feature-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    fill: var(--primary-blue);
}

.feature-text {
    color: var(--text-secondary);
    line-height: var(--line-height-normal);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-xl);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-6 {
    grid-template-columns: repeat(6, 1fr);
}

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-6 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4, .grid-6 {
        grid-template-columns: 1fr;
    }
}

/* Flex Utilities */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-col {
    flex-direction: column;
}

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

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }
.gap-2xl { gap: var(--spacing-2xl); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-white { color: var(--text-white); }
.text-blue { color: var(--primary-blue); }
.text-accent { color: var(--accent-orange); }

.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }

.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

/* Spacing Utilities */
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.py-section { padding: var(--spacing-section) 0; }
.py-2xl { padding: var(--spacing-4xl) 0; }
.py-3xl { padding: var(--spacing-4xl) 0; }

/* Background Utilities */
.bg-dark { background: var(--bg-dark); }
.bg-light { background: var(--bg-light); }
.bg-white { background: var(--bg-white); }
.bg-gradient { background: var(--bg-gradient-primary); }
.bg-gradient-dark { background: var(--bg-gradient-dark); }

/* Border Utilities */
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadow Utilities */
.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-primary { box-shadow: var(--shadow-primary); }

/* Image Utilities */
.img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.img-contain {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: var(--font-size-base);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    background: var(--bg-white);
    transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 177, 0.1);
}

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

/* Lists */
.list-check {
    list-style: none;
}

.list-check li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: var(--spacing-sm);
}

.list-check li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: var(--font-weight-bold);
}

/* Dividers */
.divider {
    width: 100%;
    height: 1px;
    background: var(--border-light);
    margin: var(--spacing-2xl) 0;
}

.divider-gradient {
    height: 2px;
    background: var(--bg-gradient-primary);
    width: 80px;
    margin: var(--spacing-lg) 0;
}

/* Tags */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    background: var(--bg-light);
    border-radius: var(--radius-full);
    margin: 0.25rem;
    transition: all var(--transition-base);
}

.tag:hover {
    background: var(--primary-blue);
    color: var(--text-white);
}

/* Tooltip */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    padding: 0.5rem 1rem;
    background: var(--bg-dark);
    color: var(--text-white);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-index-tooltip);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-4px);
}

/* Accordion */
.accordion {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.accordion-item {
    border-bottom: 1px solid var(--border-light);
}

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

.accordion-header {
    width: 100%;
    padding: var(--spacing-lg);
    background: var(--bg-white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: background var(--transition-base);
}

.accordion-header:hover {
    background: var(--bg-light);
}

.accordion-icon {
    width: 24px;
    height: 24px;
    transition: transform var(--transition-base);
}

.accordion-item.active .accordion-icon {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.accordion-item.active .accordion-content {
    max-height: 1000px;
}

.accordion-body {
    padding: var(--spacing-lg);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-light);
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    transition: color var(--transition-base);
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-blue);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.tab-btn:hover,
.tab-btn.active {
    color: var(--primary-blue);
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-content {
    padding: var(--spacing-xl) 0;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-light);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--bg-gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

/* Pagination */
.pagination {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.pagination-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-base);
}

.pagination-btn:hover,
.pagination-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--text-white);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-index-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: background var(--transition-base);
}

.modal-close:hover {
    background: var(--bg-light);
}

/* Video */
.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--bg-dark);
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Loading States */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spinner 1s linear infinite;
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-light) 25%, var(--border-light) 50%, var(--bg-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

/* Responsive Visibility */
.hide-mobile {
    display: block;
}

.hide-desktop {
    display: none;
}

@media (max-width: 768px) {
    .hide-mobile {
        display: none;
    }
    
    .hide-desktop {
        display: block;
    }
}