/* ===================================
   CSS RESET & VARIABLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-color: #0d5c63;
    --primary-dark: #094449;
    --primary-light: #107a83;
    --secondary-color:  #c9a227;
    --secondary-dark:  #b08e20;
    --secondary-light: #d4b13a;
    
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #6b6b6b;
    
    --bg-white: #ffffff;
    --bg-light: #f9fbfb;
    --bg-gray: #eef5f5;
    
    --success-color: #28a745;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-base: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --line-height-base: 1.6;
    --line-height-heading: 1.3;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    
    /* Transitions */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

/* ===================================
   BASE STYLES
   =================================== */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-dark);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    image-rendering: -webkit-optimize-contrast;
    backface-visibility: hidden;
}

a {
    color: inherit;
    transition: var(--transition-base);
}

/* ===================================
   CONTAINER & LAYOUT
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.section-alt {
    background-color: var(--bg-white);
}

.section-cta {
    background:  linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left:  auto;
    margin-right:  auto;
}

.section-header h2 {
    font-size:  clamp(1.875rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-heading);
}

.section-cta .section-header h2 {
    color: var(--bg-white);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-medium);
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto;
}

.section-cta .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

/* ===================================
   NAVIGATION
   =================================== */
.navbar {
    background: var(--bg-white);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index:  1000;
    box-shadow:  var(--shadow-sm);
    transition: var(--transition-base);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.logo:hover {
    color: var(--primary-light);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-medium);
    font-weight: 500;
    font-size: var(--font-size-sm);
    padding: 0.5rem 0;
    position: relative;
}

.nav-links a:not(.btn):hover {
    color: var(--primary-color);
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom:  0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition-base);
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    background: linear-gradient(135deg, rgba(13, 92, 99, 0.92) 0%, rgba(9, 68, 73, 0.92) 100%), 
                url('https://images.unsplash.com/photo-1558583082-409143c794ca?auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--bg-white);
    padding: clamp(5rem, 15vh, 10rem) var(--spacing-md);
    text-align: center;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height:  100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-heading);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size:  clamp(1rem, 2.5vw, 1.25rem);
    line-height: 1.7;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    font-weight: 300;
    opacity: 0.95;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--secondary-dark);
    border-color: var(--secondary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(201, 162, 39, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
}

.btn-secondary:hover {
    background: var(--bg-white);
    color: var(--primary-color);
    transform: translateY(-2px);
}

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

.section-cta .btn-secondary:hover {
    background: transparent;
    color: var(--bg-white);
    border-color: var(--bg-white);
}

/* ===================================
   CHALLENGE SECTION
   =================================== */
.challenge-grid {
    display:  grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.challenge-item {
    background: var(--bg-white);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-base);
    border-top: 4px solid transparent;
}

.challenge-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--secondary-color);
}

.challenge-item .icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--bg-gray) 0%, #dce9ea 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.challenge-item:hover .icon-wrapper {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
}

.challenge-item .icon {
    font-size: 2rem;
    color: var(--primary-color);
    transition: var(--transition-base);
}

.challenge-item:hover .icon {
    color: var(--bg-white);
    transform: scale(1.1);
}

.challenge-item h3 {
    font-size: 1.375rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.challenge-item p {
    color: var(--text-medium);
    line-height: 1.7;
}

/* ===================================
   SOLUTION SECTION
   =================================== */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.solution-card {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    transition: var(--transition-base);
    border-left: 4px solid var(--primary-color);
}

.solution-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
    background: var(--bg-white);
}

.solution-card .icon {
    font-size:  2.5rem;
    color: var(--secondary-color);
    flex-shrink: 0;
    transition: var(--transition-base);
}

.solution-card:hover .icon {
    transform: scale(1.15) rotate(5deg);
}

.solution-content h3 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.solution-content p {
    color: var(--text-medium);
    line-height: 1.7;
    font-size: var(--font-size-sm);
}

/* ===================================
   IMPACT SECTION
   =================================== */
.impact-content {
    margin-top: var(--spacing-lg);
}

.impact-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.impact-stat {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 200px;
    transition: var(--transition-base);
}

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

.stat-number {
    display: block;
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color:  var(--secondary-color);
    line-height: 1.2;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    display: block;
    font-size: var(--font-size-base);
    color: var(--text-medium);
    font-weight: 500;
}

.impact-sdgs {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.impact-sdgs h3 {
    font-size:  1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.sdg-icons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.sdg-icons img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    object-position: center;
    transition: var(--transition-base);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-white);
}

.sdg-icons img:hover {
    transform: scale(1.12) rotate(2deg);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.05);
}

/* ===================================
   TIMELINE SECTION
   =================================== */
.timeline {
    position: relative;
    max-width: 900px;
    margin: var(--spacing-lg) auto 0;
    padding: var(--spacing-md) 0;
}

.timeline::before {
    content: '';
    position: absolute;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    top: 0;
    bottom: 0;
    left:  50%;
    margin-left: -2px;
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
    align-items: center;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--bg-white);
    border: 4px solid var(--secondary-color);
    border-radius: 50%;
    display:  flex;
    align-items:  center;
    justify-content:  center;
    z-index: 10;
    box-shadow: var(--shadow-md);
}

.timeline-marker i {
    color: var(--secondary-color);
    font-size: 1.25rem;
}

.timeline-content {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    width: calc(50% - 50px);
    position: relative;
    transition: var(--transition-base);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: auto;
    margin-left: 0;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
    margin-right: 0;
}

.timeline-content:hover {
    box-shadow:  var(--shadow-lg);
    transform: scale(1.02);
}

.timeline-content h3 {
    font-size: 1.375rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.timeline-content p {
    color: var(--text-medium);
    line-height: 1.7;
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    margin-top: var(--spacing-lg);
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    object-fit: cover;
    object-position: center;
    aspect-ratio: 3/4;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: block;
    margin: 0 auto;
}

.about-text h3 {
    font-size:  2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.about-text h4 {
    font-size: 1.125rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.about-text p {
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.contact-details {
    margin-top: var(--spacing-md);
    padding:  var(--spacing-md);
    background: var(--bg-gray);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--secondary-color);
}

.contact-details p {
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.contact-details strong {
    color: var(--text-dark);
    min-width: 100px;
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-details a:hover {
    color: var(--primary-light);
    text-decoration: underline;
}

/* ===================================
   DONATION TIERS
   =================================== */
.donation-tiers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.tier {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-top: 5px solid var(--secondary-color);
    box-shadow: var(--shadow-md);
    text-align: center;
    position: relative;
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}

.tier:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.tier-featured {
    border-top-color: var(--primary-color);
    background: linear-gradient(135deg, #ffffff 0%, #f0f8f9 100%);
    transform: scale(1.05);
}

.tier-featured:hover {
    transform: scale(1.08) translateY(-10px);
}

.tier-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-md);
    background: var(--success-color);
    color: var(--bg-white);
    padding: 0.375rem 1rem;
    border-radius:  20px;
    font-size:  var(--font-size-sm);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.tier-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--bg-gray) 0%, #dce9ea 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tier-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

.tier-featured .tier-icon {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
}

.tier-featured .tier-icon i {
    color: var(--bg-white);
}

.amount {
    font-size: 2rem;
    font-weight:  700;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.tier p {
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.tier .btn {
    margin-top: auto;
}

.contact-info {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding:  var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.contact-info h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--bg-white);
}

.mpesa-info {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.mpesa-info i {
    font-size: 1.75rem;
}

.highlight {
    background: var(--secondary-color);
    color: var(--bg-white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 700;
    display: inline-block;
}

.small-text {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--primary-dark);
    color: var(--bg-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-branding h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--secondary-color);
}

.footer-branding p {
    opacity: 0.85;
    line-height: 1.7;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.125rem;
    margin-bottom:  var(--spacing-md);
    color: var(--secondary-color);
    font-weight: 600;
}

.footer-links ul {
    list-style:  none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color:  var(--secondary-color);
    padding-left: 5px;
}

.footer-contact p {
    margin-bottom: var(--spacing-sm);
    opacity: 0.85;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-contact i {
    color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-bottom p {
    margin-bottom: var(--spacing-xs);
    opacity: 0.75;
    font-size: var(--font-size-sm);
}

.footer-attribution {
    color: var(--secondary-color);
    font-weight: 500;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
    :root {
        --spacing-xl: 4rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}

@media (max-width:  768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 3rem;
    }
    
    /* Navigation */
    .nav-links {
        flex-direction: column;
        gap: var(--spacing-sm);
        display: none; /* Consider adding mobile menu toggle */
    }
    
    .navbar .btn {
        display: block;
        margin-top: var(--spacing-sm);
    }
    
    /* Hero */
    .hero {
        background-attachment: scroll;
        min-height: 70vh;
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    /* Grids */
    .challenge-grid,
    .solution-grid {
        grid-template-columns:  1fr;
    }
    
    /* Timeline */
    .timeline::before {
        left: 30px;
    }
    
    .timeline-marker {
        left: 30px;
        width: 40px;
        height: 40px;
    }
    
    .timeline-content {
        width: calc(100% - 80px);
        margin-left: 80px !important;
        margin-right: 0 !important;
    }
    
    /* About */
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .about-image img {
        max-width: 300px;
        margin: 0 auto;
    }
    
    /* Stats */
    .impact-stats {
        gap: var(--spacing-md);
    }
    
    /* SDG Icons */
    .sdg-icons img {
        width: 90px;
        height: 90px;
    }
}

@media (max-width:  480px) {
    :root {
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 2.5rem;
    }
    
    .hero-cta {
        flex-direction:  column;
    }
    
    .btn {
        width: 100%;
    }
    
    .impact-stats {
        flex-direction: column;
    }
    
    .impact-stat {
        width: 100%;
    }
    
    .sdg-icons {
        gap: var(--spacing-sm);
    }
    
    .sdg-icons img {
        width: 70px;
        height: 70px;
    }
}

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

.challenge-item,
.solution-card,
.impact-stat,
.tier {
    animation: fadeInUp 0.6s ease-out forwards;
    opacity: 0;
}

.challenge-item:nth-child(1) { animation-delay: 0.1s; }
.challenge-item:nth-child(2) { animation-delay: 0.2s; }
.challenge-item:nth-child(3) { animation-delay: 0.3s; }
.challenge-item:nth-child(4) { animation-delay: 0.4s; }

/* ===================================
   UTILITY CLASSES
   =================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom:  var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* Impact gallery */
.impact-gallery {
    margin-top: var(--spacing-lg);
}

.impact-gallery h3 {
    color: var(--primary-color);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.03);
}

.gallery-item {
    display: block;
    padding: 0;
    border: 0;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, filter 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-item:hover {
    transform: translateY(-12px) scale(1.05);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
    filter: drop-shadow(0 8px 16px rgba(201, 162, 39, 0.2));
}

.gallery-item:hover .caption {
    color: var(--primary-color);
    opacity: 1;
    transform: translateY(-2px);
}

.gallery-item img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.3s ease;
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.85);
    z-index: 2000;
    padding: var(--spacing-md);
}

.lightbox[aria-hidden="false"] {
    display: flex;
}

.lightbox-img {
    max-width: 90%;
    max-height: 80%;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
}

.lightbox-caption {
    margin-top: var(--spacing-sm);
    color: #fff;
    text-align: center;
    max-width: 90%;
}

.lightbox-close {
    position: absolute;
    top: 18px;
    right: 20px;
    background: transparent;
    color: #fff;
    border: 0;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
}

/* Small-screen adjustments */
@media (max-width: 480px) {
    .gallery-item img {
        height: 120px;
        object-fit: cover;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
    
    .timeline-step img {
        max-width: 100px;
    }
}

@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }
}
.gallery-timeline {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  overflow-x: auto;
  padding: 1rem;
}

.timeline-step {
  text-align: center;
  position: relative;
}

.timeline-step img {
  max-width: 150px;
  border-radius: 8px;
  border: 2px solid var(--text-light);
  object-fit: cover;
  object-position: center;
  display: block;
  margin: 0 auto;
  transition: transform 0.3s ease, box-shadow 0.3s ease, filter 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.caption {
  margin-top: 0.75rem;
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.95rem;
  transition: color 0.3s ease, opacity 0.3s ease, transform 0.3s ease;
  display: block;
  opacity: 0.9;
  letter-spacing: 0.3px;
  line-height: 1.4;
}

.timeline-step .caption {
  margin-top: 0.75rem;
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  line-height: 1.4;
  display: block;
  opacity: 0.9;
  transition: color 0.3s ease, opacity 0.3s ease;
}

.timeline-step:hover .caption {
  color: var(--secondary-color);
  opacity: 1;
}

.timeline-step img:hover {
  transform: scale(1.08);
  box-shadow: var(--shadow-md);
  filter: brightness(1.05);
}
@media (max-width: 600px) {
  .gallery-timeline {
    flex-direction: column;
    gap: 1.5rem;
    overflow-x: visible;
  }
  
  .timeline-step img {
    max-width: 100px;
    border-radius: 6px;
  }
  
  .arrow {
    font-size: 1.5rem;
    transform: rotate(90deg);
  }
}

@media (max-width: 768px) {
    .gallery-grid {
        gap: var(--spacing-md);
    }
    
    .about-image img {
        max-height: 400px;
    }
    
    .sdg-icons img {
        width: 100px;
        height: 100px;
    }
}