/* Global Styles */
:root {
    --primary-color: #0060ad;
    /* Deep Ocean Blue */
    --secondary-color: #00a8e8;
    /* Bright Blue */
    --accent-color: #66cc33;
    /* Green */
    --hero-bg: #3d5c75;
    /* Dark Blue-Grey from reference */
    --text-dark: #333;
    --text-light: #f4f4f4;
    --background-light: #fff;
    --background-dark: #f9f9f9;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background-light);
    scroll-behavior: smooth;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

/* Header & Logo Overlap Container */
.header {
    background-color: transparent;
    height: 100px;
    /* Placeholder height if needed, or let content dictate */
    position: relative;
    z-index: 1000;
}

.header-container {
    display: flex;
    justify-content: center;
    position: relative;
}

.logo-container {
    background-color: white;
    padding: 20px 40px 40px;
    /* Extra padding bottom for overlap feel */
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    position: absolute;
    top: 0;
    z-index: 10;
}

.logo-img {
    height: 290px;
    /* Adjust size to fit nicely in the overlap box */
    display: block;
}

/* Hero Section */
.hero {
    background-color: var(--hero-bg);
    padding: 400px 0 100px;
    /* Top padding clears the overlapping logo */
    color: white;
    text-align: center;
    position: relative;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-content {
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-date {
    font-size: 1.5rem;
    color: var(--accent-color);
    /* Green pop for date */
    font-weight: 600;
    margin-bottom: 20px;
    display: block;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 40px;
    font-weight: 300;
    opacity: 0.9;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 5px;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    letter-spacing: 1px;
    transition: var(--transition);
}

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

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

.btn-outline {
    background: transparent;
    border: 2px solid white;
    color: white;
    margin-left: 20px;
}

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

/* Countdown */
.countdown {
    display: flex;
    justify-content: center;
    margin-top: 60px;
    gap: 30px;
}

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

.countdown-item span {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    line-height: 1;
}

.countdown-item label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 5px;
    display: block;
    opacity: 0.8;
}

/* Sections General */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-line {
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 0 auto;
}

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

/* Themes Section */
.themes {
    background-color: var(--background-dark);
}

.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.theme-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.theme-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.theme-icon {
    font-size: 3.5rem;
    margin-bottom: 25px;
    display: block;
}

.theme-card h3 {
    font-family: var(--font-heading);
    margin-bottom: 15px;
    color: var(--hero-bg);
    font-size: 1.3rem;
}

/* Footer */
.footer {
    background-color: #222;
    color: white;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-col h3 {
    font-family: var(--font-heading);
    margin-bottom: 25px;
    color: var(--accent-color);
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-col p {
    margin-bottom: 15px;
    color: #bbb;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: #888;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .logo-container {
        padding: 15px 25px 30px;
    }

    .logo-img {
        height: 120px;
    }

    .hero {
        padding-top: 180px;
    }

    .countdown {
        flex-wrap: wrap;
        gap: 15px;
    }

    .countdown-item {
        min-width: 80px;
    }

    .countdown-item span {
        font-size: 2rem;
    }
}