/* Custom Properties*/
:root {
    /* Colors */
    --primary-color: #800020;
    --secondary-color: #800020;
    --secondary-color-child:#ffffff;
    --accent-color: #FFD700;
    --dark-color: #000000;
    --light-color: #ffffff;
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    
    /* Text Colors */
    --text-primary: #000000;
    --text-secondary: #333333;
    --text-muted: #6c757d;
    --text-light: rgba(255, 255, 255, 0.9);
    
    /* Typography */
    --font-main: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Lora', Georgia, serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    
    /* Font Sizes - Fluid Typography */
    --fs-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --fs-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --fs-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --fs-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --fs-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --fs-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --fs-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 3rem);
    --fs-4xl: clamp(2.25rem, 1.8rem + 2.25vw, 4rem);
    
    /* Spacing - Consistent Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --container-padding: clamp(1rem, 5vw, 2rem);
    --navbar-height: 70px;
    --navbar-height-mobile: 60px;
    
    /* Transitions & Animations */
    --transition-fast: 0.15s ease;
    --transition-default: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    --transition-bounce: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 15px 35px rgba(0, 0, 0, 0.15);
    --shadow-colored: 0 8px 25px rgba(0, 34, 68, 0.2);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, #003366 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, #aa0030 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent-color) 0%, #ffed4a 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(0, 0, 0, 0.5) 50%, rgba(0, 0, 0, 0.5) 80%);
    
    /* Z-index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Reset and Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--navbar-height);
}

body {
    font-family: var(--font-main);
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--light-color);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--primary-color);
}

h1 { font-size: var(--fs-4xl); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); }
h6 { font-size: var(--fs-base); }

p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

/* Utility Classes */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Section Titles */
.section-title {
    position: relative;
    margin-bottom: var(--space-2xl);
    color: var(--primary-color);
    text-align: center;
    font-weight: 700;
    font-size: var(--fs-3xl);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    margin: var(--space-md) auto 0;
    border-radius: var(--radius-full);
    transform: scaleX(0);
    transition: transform var(--transition-bounce);
}

.section-title.visible::after {
    transform: scaleX(1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-main);
    font-size: var(--fs-base);
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    text-align: center;
    letter-spacing: 0.025em;
    cursor: pointer;
    transition: all var(--transition-default);
    position: relative;
    overflow: hidden;
    z-index: 1;
    white-space: nowrap;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    z-index: -1;
    transition: width var(--transition-slow);
}

.btn:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--light-color);
    box-shadow: var(--shadow-colored);
}

.btn-primary::before {
    background: var(--gradient-secondary);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-primary:hover:not(:disabled)::before {
    width: 100%;
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--light-color);
    box-shadow: 0 4px 15px rgba(128, 0, 32, 0.3);
}

.btn-secondary::before {
    background: var(--gradient-primary);
}

.btn-secondary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(128, 0, 32, 0.4);
}

.btn-secondary:hover:not(:disabled)::before {
    width: 100%;
}

.btn-outline-light {
    background: transparent;
    color: var(--light-color);
    border: 2px solid var(--light-color);
}

.btn-outline-light::before {
    background: var(--light-color);
}

.btn-outline-light:hover:not(:disabled) {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-outline-light:hover:not(:disabled)::before {
    width: 100%;
}

.btn-sm {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--fs-sm);
}

.btn-lg {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--fs-lg);
}


/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 0.9; }
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes fadePulse {
    0%, 100% { opacity: 0; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}


/* ==========================================================================
   Hero Section
   ========================================================================== */
   .gallery-hero{
    background: var(--gradient-primary);
    color: var(--light-color);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5));
   }

.hero-section {
    color: var(--primary-color);
    padding: 8rem 0;
    position: relative;
}

/* ==========================================================================
   Gallery Section
   ========================================================================== */

.gallery-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--space-3xl) var(--space-md);
}

.gallery-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.gallery-title {
    font-size: var(--fs-3xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--space-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.gallery-subtitle {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    font-weight: 300;
}

.filter-container {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-2xl);
}

.filter-pills {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    color:#003366;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-default);
    white-space: nowrap;
}

.filter-btn i {
    font-size: var(--fs-sm);
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--gradient-accent);
    box-shadow: var(--shadow-md);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.gallery-item {
    opacity: 1;
    transform: scale(1);
    transition: all var(--transition-slow);
}

.gallery-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.gallery-card {
    background: var(--light-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-default);
    cursor: pointer;
}

.gallery-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.card-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-default);
}

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

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-default);
}

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

.overlay-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--light-color);
    text-align: center;
}

.overlay-content i {
    font-size: var(--fs-lg);
    margin-bottom: var(--space-sm);
}

.overlay-content span {
    font-weight: 500;
}

.card-content {
    padding: var(--space-lg);
}

.card-category {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-primary);
    color: var(--light-color);
    font-size: var(--fs-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-title {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

.card-date {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.load-more-container {
    display: flex;
    justify-content: center;
    margin-top: var(--space-xl);
}

.load-more-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    color: var(--light-color);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-default);
    backdrop-filter: blur(10px);
}

.load-more-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 0.9; }
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes fadePulse {
    0%, 100% { opacity: 0; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}

@keyframes scaleX {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

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

.zoom-in {
    animation: zoomIn 0.5s ease forwards;
}

/* ==========================================================================
   Loader
   ========================================================================== */

.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--light-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: var(--z-modal);
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.loader-overlay.fade-out {
    opacity: 0;
    visibility: hidden;
}

.modern-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--primary-color);
    opacity: 0;
}

.dot1 { animation: fadePulse 1.5s infinite ease-in-out 0s; }
.dot2 { animation: fadePulse 1.5s infinite ease-in-out 0.3s; }
.dot3 { animation: fadePulse 1.5s infinite ease-in-out 0.6s; }

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.zoom-in {
    animation: zoomIn 0.5s ease forwards;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .gallery-container {
        padding: 40px 15px;
    }
    
    .gallery-title {
        font-size: 2.2rem;
    }
    
    .gallery-subtitle {
        font-size: 1rem;
    }
    
    .filter-pills {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .card-content {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .gallery-title {
        font-size: 1.8rem;
    }
    
    .filter-btn span {
        display: none;
    }
    
    .filter-btn {
        padding: 12px;
        min-width: 44px;
        justify-content: center;
    }
    
    .card-image {
        height: 200px;
    }
    
    .card-title {
        font-size: 1.1rem;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .gallery-card {
        background: #1a1a1a;
        border: 1px solid rgba(255,255,255,0.1);
    }
    
    .card-title {
        color: #e4e4e4;
    }
    
    .card-description {
        color: #b0b0b0;
    }
    
    .card-meta {
        color: #888;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.filter-btn:focus,
.load-more-btn:focus,
.gallery-card:focus {
    outline: 2px solid rgba(255,255,255,0.8);
    outline-offset: 2px;
}

/* High contrast support */
@media (prefers-contrast: high) {
    .filter-btn,
    .load-more-btn {
        border: 2px solid currentColor;
    }
    
    .card-overlay {
        background: rgba(0,0,0,0.9);
    }
}
/* Loader */
.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--light-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: var(--z-modal);
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.loader-overlay.fade-out {
    opacity: 0;
    visibility: hidden;
}

.modern-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--primary-color);
    opacity: 0;
}

.dot1 { animation: fadePulse 1.5s infinite ease-in-out 0s; }
.dot2 { animation: fadePulse 1.5s infinite ease-in-out 0.3s; }
.dot3 { animation: fadePulse 1.5s infinite ease-in-out 0.6s; }

/* Footer */
footer {
    background: var(--gradient-primary);
    color: var(--light-color);
    padding: var(--space-4xl) 0 var(--space-2xl);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    animation: scaleX 1.5s var(--transition-bounce) 0.5s forwards;
}

footer a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-default);
    position: relative;
}

footer a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: aliceblue;
    transition: width var(--transition-default);
}

footer a:hover {
    color: var(--accent-color);
}

footer a:hover::after {
    width: 100%;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    margin-right: var(--space-md);
    transition: all var(--transition-bounce);
    color: var(--accent-color);
    position: relative;
    overflow: hidden;
}

.social-icons a::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent-color);
    border-radius: var(--radius-full);
    transform: scale(0);
    transition: transform var(--transition-bounce);
    z-index: -1;
}

.social-icons a:hover {
    color: var(--primary-color);
    transform: translateY(-3px) scale(1.1);
}

.social-icons a:hover::before {
    transform: scale(1);
}

/* Back to Top Button */
.back-to-top-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--light-color);
    border: none;
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-default);
    z-index: var(--z-fixed);
}

.back-to-top-btn:hover {
    transform: translateY(-3px);
    background-color: var(--secondary-color);
    box-shadow: var(--shadow-lg);
}

.back-to-top-btn.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top-btn.show:hover {
    animation: pulse 1.5s infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --navbar-height: var(--navbar-height-mobile);
        --container-padding: var(--space-md);
    }
    
    .hero-text {
        padding: var(--space-xl) var(--space-lg);
    }
    
    .hero-text h1 {
        font-size: var(--fs-3xl);
    }
    
    .hero-text p {
        font-size: var(--fs-lg);
    }
    
    .btn {
        padding: var(--space-md) var(--space-lg);
    }

    .count-box {
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .hero-section {
        height: 100vh;
        min-height: 500px;
    }
    
    .hero-text {
        padding: var(--space-lg) var(--space-md);
    }
    
    .card-body {
        padding: var(--space-lg);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }

    .count-box {
        padding: var(--space-md);
    }
}