:root {
    --primary: #8E44AD;
    /* Purple */
    --primary-dark: #6C3483;
    /* Darker Purple */
    --secondary: #004E89;
    --secondary-light: #0066B3;
    --accent: #E8DAEF;
    /* Light Purple */
    --bg-light: #F7F7FF;
    --white: #FFFFFF;
    --dark: #1A1A1A;
    --text-muted: #666666;
    --glass: rgba(255, 255, 255, 0.7);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

ul {
    list-style: none;
}

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

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

header.scrolled {
    background: var(--white);
    padding: 1rem 0;
    box-shadow: var(--shadow);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--secondary);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a:hover {
    color: var(--primary);
}

.mobile-menu-toggle {
    display: none;
}

/* Buttons */
.btn-primary {
    background: var(--primary);
    color: var(--white);
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(142, 68, 173, 0.3);
    color: var(--white);
}

.btn-secondary {
    background: transparent;
    color: var(--secondary);
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    border: 2px solid var(--secondary);
    display: inline-block;
}

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

/* Sections */
.section {
    padding: 8rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    line-height: 1.2;
}

.center {
    text-align: center;
}

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

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

/* Hero Section */
.hero {
    padding: 12rem 0 8rem;
    background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 100%);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 10%;
    right: 5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(142, 68, 173, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    background: rgba(142, 68, 173, 0.1);
    color: var(--primary);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.highlight {
    color: var(--primary);
}

.tagline {
    font-size: 1.5rem;
    color: var(--secondary);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-text .description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-status {
    display: flex;
    gap: 3rem;
    margin-bottom: 3rem;
}

.status-item strong {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.3rem;
}

.status-item span {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary);
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
}

.hero-visual .image-wrapper {
    position: relative;
    z-index: 1;
}

.hero-visual img {
    border-radius: 30px;
    box-shadow: 20px 20px 60px rgba(0, 0, 0, 0.1);
}

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

/* About Section Extras */
.check-list {
    margin-top: 2rem;
}

.check-list li {
    margin-bottom: 1rem;
    padding-left: 2rem;
    position: relative;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 800;
}

.card {
    padding: 3rem;
    border-radius: 20px;
    background: var(--white);
    box-shadow: var(--shadow);
}

.card.glass {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.audience-stats {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
}

.stat .number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
}

.audience-list {
    margin-top: 1.5rem;
}

.audience-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

/* Convener */
.rounded-image {
    border-radius: 30px;
    box-shadow: var(--shadow);
}

.subtitle {
    font-size: 1.2rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.accomplishments {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.acc-item {
    background: var(--secondary);
    color: var(--white);
    padding: 0.5rem 1.2rem;
    border-radius: 8px;
    font-size: 0.9rem;
}

/* Sponsorship Tiers */
.sponsorship-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
}

.tier-card {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.tier-card:hover {
    transform: translateY(-10px);
}

.tier-card.sole {
    background: var(--secondary);
    color: var(--white);
    transform: scale(1.05);
}

.tier-card.sole:hover {
    transform: translateY(-10px) scale(1.05);
}

.tier-header h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 2.5rem;
}

.tier-card.sole .price {
    color: var(--accent);
}

.tier-features {
    margin-bottom: 3rem;
    flex-grow: 1;
}

.tier-features li {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.tier-card.sole .tier-features li {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.featured {
    font-weight: 700;
    color: var(--primary);
}

.tier-card.sole .featured {
    color: var(--accent);
}

.btn-tier {
    padding: 1rem;
    border-radius: 12px;
    font-weight: 600;
    background: var(--bg-light);
    color: var(--dark);
}

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

.other-tiers {
    margin-top: 4rem;
}

.in-kind-section {
    margin-top: 4rem;
    text-align: center;
    padding: 4rem;
}

.link-btn {
    display: inline-block;
    margin-top: 1.5rem;
    color: var(--primary);
    font-weight: 700;
    border-bottom: 2px solid var(--primary);
}

/* Contact Section */
.white {
    color: var(--white);
}

.contact-methods {
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item .icon {
    font-size: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

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

input,
select,
textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    border: 1px solid #ddd;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
}

/* Footer */
footer {
    padding: 3rem 0;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

/* Responsiveness */
@media (max-width: 992px) {

    .grid-2,
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-visual {
        order: -1;
    }

    .sponsorship-grid {
        grid-template-columns: 1fr;
    }

    .tier-card.sole {
        transform: none;
    }

    .tier-card.sole:hover {
        transform: translateY(-10px);
    }

    /* Mobile Menu */
    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        gap: 6px;
        cursor: pointer;
        z-index: 1001;
    }

    .mobile-menu-toggle span {
        width: 30px;
        height: 3px;
        background-color: var(--secondary);
        border-radius: 3px;
        transition: var(--transition);
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        z-index: 1000;
        padding: 2rem;
    }

    .nav-links.active {
        right: 0;
    }

    /* Hamburger Animation */
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }
}

@media (max-width: 600px) {
    .hero-text h1 {
        font-size: 2.8rem;
    }

    .hero-status {
        gap: 1.5rem;
    }
}

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

.animate-up.visible {
    opacity: 1;
    transform: translateY(0);
}