/* ==========================================================================
   CSS Variables & Theming
   ========================================================================== */
:root {
    /* Premium NGO Color Palette */
    --primary: #0B4F8C;       /* Deep Blue - Trust, Professionalism */
    --primary-dark: #073866;
    --secondary: #27AE60;     /* Emerald Green - Hope, Life, Growth */
    --secondary-dark: #1E8449;
    --accent: #F39C12;        /* Orange - Energy, Youth */
    --danger: #E74C3C;        /* Red - Urgency, Danger */
    --bg-light: #F8F9FA;      /* Soft White - Backgrounds */
    --white: #FFFFFF;         /* Cards & Containers */
    --text-dark: #333333;     /* Main Text */
    --text-muted: #666666;    /* Paragraphs */
    --border-color: #EAEAEA;
    
    /* Typography */
    --font-head: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Shadows & Transitions */
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.12);
    --transition: all 0.3s ease-in-out;
    --border-radius: 12px;
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-head);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    line-height: 1.2;
}

p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   Layout Utilities
   ========================================================================== */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    padding: 5rem 0;
}

.bg-light { background-color: var(--bg-light); }
.bg-white { background-color: var(--white); }
.section-primary { background-color: var(--primary); }
.text-center { text-align: center; }
.text-white { color: var(--white) !important; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }
.w-100 { width: 100%; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ==========================================================================
   Typography Utilities
   ========================================================================== */
.section-subtitle {
    display: inline-block;
    color: var(--secondary);
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.text-center .section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent);
    border-radius: 2px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-head);
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 15px rgba(11, 79, 140, 0.4);
    color: var(--white);
}

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

.btn-outline:hover {
    background-color: var(--white);
    color: var(--primary);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 1.5rem 0;
}

.header.scrolled {
    padding: 0.8rem 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 40px;
    transition: var(--transition);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--white);
    font-weight: 500;
    font-family: var(--font-head);
    position: relative;
}

.header.scrolled .nav-links a {
    color: var(--text-dark);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background-color: var(--white);
    transition: var(--transition);
    border-radius: 3px;
}

.header.scrolled .hamburger .bar {
    background-color: var(--text-dark);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transform: scale(1.05); /* Slight zoom for animation feel */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(11, 79, 140, 0.7), rgba(39, 174, 96, 0.6));
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-icon {
    width: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(255,255,255,0.2);
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    text-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--white);
    font-size: 0.8rem;
    font-family: var(--font-head);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid var(--white);
    border-radius: 15px;
    margin-bottom: 10px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background-color: var(--white);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { top: 6px; opacity: 1; }
    100% { top: 20px; opacity: 0; }
}

/* ==========================================================================
   About Section
   ========================================================================== */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.split-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    height: 100%;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.premium-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
    border-top: 4px solid var(--primary);
}

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

.card-icon {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

/* ==========================================================================
   Statistics
   ========================================================================== */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    color: var(--white);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    font-family: var(--font-head);
    margin-bottom: 0.5rem;
}

.stat-number::after {
    content: '+';
    color: var(--accent);
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==========================================================================
   Core Values & Policy
   ========================================================================== */
.value-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.value-card:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-5px);
}

.value-card i {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.value-card:hover i {
    color: var(--white);
}

/* Horizontal Timeline */
.timeline-horizontal {
    display: flex;
    justify-content: space-between;
    position: relative;
    padding-top: 2rem;
}

.timeline-horizontal::before {
    content: '';
    position: absolute;
    top: 4rem;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--bg-light);
    z-index: 1;
}

.timeline-step {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 2;
    padding: 0 1rem;
}

.step-icon {
    width: 70px;
    height: 70px;
    background: var(--white);
    border: 4px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: var(--primary);
    transition: var(--transition);
}

.timeline-step:hover .step-icon {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.1);
}

/* ==========================================================================
   Problem Section
   ========================================================================== */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.danger-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
    border-top: 5px solid var(--danger);
}

.danger-card.border-orange {
    border-top-color: var(--accent);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.card-header i {
    font-size: 2rem;
    color: var(--danger);
}

.border-orange .card-header i {
    color: var(--accent);
}

.styled-list li {
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.styled-list li i {
    color: var(--secondary);
    margin-top: 5px;
}

/* ==========================================================================
   Programs Section
   ========================================================================== */
.program-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.program-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.program-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.program-card:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
    border-color: var(--primary);
}

.program-card:hover i {
    color: var(--secondary);
    transform: scale(1.1);
}

/* ==========================================================================
   Rehabilitation Process
   ========================================================================== */
.process-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.process-node {
    text-align: center;
    width: 200px;
}

.node-circle {
    width: 80px;
    height: 80px;
    background: var(--secondary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
    box-shadow: 0 0 0 10px rgba(39, 174, 96, 0.2);
}

.process-line {
    width: 100px;
    height: 4px;
    background: var(--secondary);
    opacity: 0.5;
    margin-bottom: 3rem;
}

.featured-banner {
    background-size: cover;
    background-position: center;
    border-radius: var(--border-radius);
    padding: 4rem 3rem;
    color: var(--white);
    text-align: left;
    box-shadow: var(--shadow-lg);
}

.featured-banner .badge {
    background: var(--accent);
    color: var(--white);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 1rem;
}

.featured-banner h3 {
    color: var(--white);
    font-size: 2rem;
}

/* ==========================================================================
   Gallery Section
   ========================================================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 1 / 1;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11, 79, 140, 0.9), transparent);
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: var(--transition);
}

.gallery-overlay h4 {
    color: var(--white);
    margin: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

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

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

.gallery-item:hover .gallery-overlay h4 {
    transform: translateY(0);
}

/* ==========================================================================
   Donate Section
   ========================================================================== */
.section-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.donation-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 3rem 2rem;
    max-width: 500px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.bank-details {
    margin-bottom: 2rem;
    text-align: left;
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    color: var(--text-dark);
}

.bank-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
    font-weight: 600;
}

.account-number {
    font-family: monospace;
    font-size: 2rem;
    color: var(--primary);
    letter-spacing: 2px;
    margin-bottom: 0;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary);
    background: var(--bg-light);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    margin-right: 10px;
    transition: var(--transition);
}

.social-icons a:hover {
    background: var(--accent);
    transform: translateY(-3px);
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-body);
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(11, 79, 140, 0.1);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 50px;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--secondary);
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-col ul a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.newsletter-form {
    display: flex;
    margin-top: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.8rem;
    border: none;
    border-radius: 4px 0 0 4px;
    outline: none;
}

.newsletter-form button {
    padding: 0 1.5rem;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background: var(--accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.legal-links a {
    color: rgba(255, 255, 255, 0.6);
    margin-left: 1.5rem;
}

.legal-links a:hover {
    color: var(--white);
}

/* ==========================================================================
   Floating Elements
   ========================================================================== */
.floating-wa {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    animation: pulse 2s infinite;
    transition: var(--transition);
}

.floating-wa:hover {
    transform: scale(1.1);
    color: var(--white);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 35px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
}

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

.back-to-top:hover {
    background: var(--accent);
    transform: translateY(-3px);
}

/* ==========================================================================
   Animations
   ========================================================================== */
.reveal {
   /* opacity: 0; */
   /* transform: translateY(30px);*/
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Ripple effect for buttons */
.ripple {
    position: relative;
    overflow: hidden;
}

/* ==========================================================================
   Media Queries (Responsive)
   ========================================================================== */
@media (max-width: 1024px) {
    .split-layout, .contact-grid {
        gap: 2rem;
    }
    
    .timeline-horizontal::before {
        display: none;
    }
    
    .timeline-horizontal {
        flex-direction: column;
        gap: 2rem;
    }
    
    .process-line {
        display: none;
    }
    
    .hero h1 { font-size: 3rem; }
}

@media (max-width: 768px) {
    .hamburger { display: flex; }
    
    .nav-links, .nav-actions .btn {
        display: none;
    }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        padding: 2rem;
        box-shadow: var(--shadow-md);
        text-align: center;
    }
    
    .header.scrolled .nav-links.active a,
    .nav-links.active a {
        color: var(--text-dark);
        padding: 10px 0;
    }

    .hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
    .hamburger.active .bar:nth-child(2) { opacity: 0; }
    .hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

    .split-layout, .grid-2, .contact-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 { font-size: 2.2rem; }
    .hero p { font-size: 1rem; }
    
    .hero-buttons { flex-direction: column; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
    
    .section { padding: 3rem 0; }
    .section-title { font-size: 2rem; }
}