:root {
    --primary: #006994;
    --accent: #00B4D8;
    --highlight: #FFD700;
    --bg-color: #F0F8FF;
    --text-dark: #1a1a1a;
    --text-light: #ffffff;
    --gray: #666666;
    --white: #ffffff;
    --transition: 0.3s ease;
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --container-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

h1, h2, h3, .logo {
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    font-weight: 700;
}

h1 { font-size: 64px; line-height: 1.1; }
h2 { font-size: 48px; margin-bottom: 30px; }
h3 { font-size: 28px; margin-bottom: 15px; }

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

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

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--accent);
    transform: translateY(-3px);
}

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

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

.btn-block {
    display: block;
    width: 100%;
}

/* Header */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

#header.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 10px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    color: var(--primary);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    color: var(--white);
}

#header.scrolled .logo {
    color: var(--primary);
}

.desktop-nav {
    display: flex;
    align-items: center;
    gap: 30px;
    color: var(--white);
}

#header.scrolled .desktop-nav {
    color: var(--text-dark);
}

.desktop-nav a:hover {
    color: var(--highlight);
}

.btn-donate {
    margin-left: 10px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 30px;
    height: 3px;
    background-color: var(--white);
    transition: var(--transition);
}

#header.scrolled .mobile-menu-toggle span {
    background-color: var(--primary);
}

/* Hero */
#hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero-content p {
    font-size: 1.5rem;
    margin: 20px 0 40px;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--white);
}

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

/* Stats Bar */
.stats-bar {
    background-color: var(--primary);
    color: var(--white);
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-number {
    display: block;
    font-family: 'Oswald', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--highlight);
}

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

/* Layouts */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.two-col.reverse {
    direction: rtl;
}

.two-col.reverse > * {
    direction: ltr;
}

.mission-quote {
    font-size: 1.4rem;
    font-style: italic;
    border-left: 5px solid var(--accent);
    padding-left: 20px;
    margin-bottom: 30px;
    color: var(--primary);
}

.vision-box {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.values-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.value-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.value-icon {
    font-size: 2rem;
}

.img-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.img-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 10px solid var(--highlight);
    border-radius: 20px;
    transform: translate(15px, 15px);
    z-index: -1;
}

/* Cards */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.card-icon {
    color: var(--accent);
    margin-bottom: 20px;
}

/* Event List */
.event-list {
    margin-top: 30px;
}

.event-list li {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.event-date {
    background: var(--primary);
    color: var(--white);
    padding: 10px;
    border-radius: 5px;
    font-family: 'Oswald', sans-serif;
    font-weight: 700;
    min-width: 70px;
    text-align: center;
    height: fit-content;
}

/* Involvement */
.involvement-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.involvement-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.inv-img {
    height: 250px;
    background-size: cover;
    background-position: center;
}

.inv-content {
    padding: 40px;
}

/* Form */
.styled-form {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 105, 148, 0.1);
}

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

/* Footer */
.footer {
    background: #002b3d;
    color: var(--white);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-col h3 {
    font-size: 1.2rem;
    margin-bottom: 25px;
    color: var(--accent);
}

.footer-email {
    display: block;
    font-size: 1.2rem;
    margin-top: 20px;
    color: var(--highlight);
    font-weight: 700;
}

.footer-links li {
    margin-bottom: 10px;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 0.9rem;
    color: #aaa;
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    padding: 50px;
    border-radius: 20px;
    max-width: 500px;
    width: 100%;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: center;
}

.mobile-nav-links a {
    font-size: 1.5rem;
    font-family: 'Oswald', sans-serif;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: #4CAF50;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin: 0 auto 20px;
}

/* Scroll to Top */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    z-index: 999;
    transition: var(--transition);
}

.scroll-to-top.visible {
    display: flex;
}

.scroll-to-top:hover {
    background: var(--accent);
    transform: scale(1.1);
}

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

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    h1 { font-size: 48px; }
    h2 { font-size: 36px; }
    .card-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .desktop-nav { display: none; }
    .mobile-menu-toggle { display: flex; }
    .two-col { grid-template-columns: 1fr; gap: 40px; }
    .two-col.reverse { direction: ltr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .card-grid { grid-template-columns: 1fr; }
    .involvement-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .section { padding: 60px 0; }
    h1 { font-size: 36px; }
    .hero-btns { flex-direction: column; }
}