/* ==== Base Variables & Setup ==== */
:root {
    --col-primary: #041E42; /* Navy Blue */
    --col-secondary: #D21B6D; /* Vibrant Magenta/Pink */
    --col-accent: #E3A82B; /* Gold/Yellow */
    --col-tertiary: #781D41; /* Maroon */
    
    --col-bg: #E6F0FA; /* Light Blue Background */
    --col-bg-light: #FFFFFF;
    --col-text: #1a1a1a;
    --col-text-light: #4a4a4a;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --border-radius: 12px;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

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

/* ==== Typography ==== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--col-primary);
    line-height: 1.2;
}

/* ==== Hero Section ==== */
.hero {
    position: relative;
    background-color: var(--col-primary);
    min-height: 40vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-bottom: 2rem; /* Kept bottom padding so text has space */
    overflow: hidden;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(4,30,66,0.9) 0%, rgba(210,27,109,0.7) 100%);
    z-index: 1;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    max-width: 1200px;
    width: 100%;
    z-index: 2;
}

.hero-image-container {
    flex: 0 0 300px;
    max-width: 300px;
    /* Removed border-radius so it sits flush */
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
}

.hero-text-container {
    color: white;
    padding: 0 1.5rem;
    margin-top: 1rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.event-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.event-title .highlight {
    color: var(--col-accent);
}

.hero-image {
    max-width: 100%;
    max-height: 70vh;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.2));
}

.welcome-message {
    font-size: 1.25rem;
    font-weight: 400;
    opacity: 0.9;
    max-width: 500px;
    margin: 0;
}

/* Background stylistic elements for Hero */
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    z-index: 1;
}

/* ==== Navigation ==== */
.quick-nav {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 1rem;
    box-shadow: var(--shadow);
    z-index: 100;
    flex-wrap: wrap;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--col-primary);
    color: white;
    border: 2px solid var(--col-primary);
    padding: 1rem 1.75rem;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.nav-btn:hover {
    background: var(--col-secondary);
    border-color: var(--col-secondary);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.nav-btn svg {
    width: 24px;
    height: 24px;
}

.search-container {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.search-panel {
    display: none;
    position: absolute;
    top: 110%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    width: 280px;
    z-index: 101;
    animation: slideDown 0.3s ease;
}

.search-panel.active {
    display: block;
}

@keyframes slideDown {
    from { opacity: 0; transform: translate(-50%, -10px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

#schedule-search {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #eee;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

#schedule-search:focus {
    border-color: var(--col-secondary);
}

/* ==== Main Content ==== */
main {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.section-container {
    margin-bottom: 4rem;
    padding: 2rem;
    background: var(--col-bg-light);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--col-secondary);
    border-radius: 2px;
}

/* ==== Accordion ==== */
.accordion-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* ==== Time Schedule ==== */
.time-filter-container {
    background: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.filter-instruction {
    margin-bottom: 1rem;
    font-weight: 500;
    color: var(--col-primary);
}

.selected-time-display {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--col-primary);
    margin-bottom: 2rem;
}

.time-slider-container {
    position: relative;
    width: 100%;
    height: 40px;
    margin: 1rem 0 2rem;
}

.time-slider-container input[type="range"] {
    position: absolute;
    width: 100%;
    height: 8px;
    top: 0;
    pointer-events: none;
    -webkit-appearance: none;
    background: transparent;
    z-index: 3;
    outline: none;
    margin: 0;
}

/* Track background */
.time-slider-container::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 8px;
    background: #e0e0e0;
    border-radius: 4px;
    top: 0;
    z-index: 1;
}

/* Colored track between thumbs */
.slider-track {
    position: absolute;
    height: 8px;
    background: var(--col-secondary);
    border-radius: 4px;
    top: 0;
    z-index: 2;
}

/* Thumbs */
.time-slider-container input[type="range"]::-webkit-slider-thumb {
    pointer-events: all;
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--col-primary);
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    margin-top: -8px;
}

.time-slider-container input[type="range"]::-moz-range-thumb {
    pointer-events: all;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--col-primary);
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    position: absolute;
    width: 100%;
    top: 25px;
    color: var(--col-text-light);
    font-size: 0.85rem;
    font-weight: 500;
}

.placeholder-text {
    text-align: center;
    color: var(--col-text-light);
    font-style: italic;
    padding: 2rem;
}

.time-schedule-list {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.accordion-item {
    border: 1px solid #eee;
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
}

.accordion-item:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background: white;
    border: none;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--col-primary);
    text-align: left;
    transition: var(--transition);
}

.category-icon {
    font-size: 1.25rem;
    margin-right: 1rem;
}

.toggle-icon {
    margin-left: auto;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--col-secondary);
    transition: transform 0.3s ease;
}

.accordion-item.active .toggle-icon {
    transform: rotate(45deg);
}

.accordion-item.active .accordion-header {
    background: var(--col-bg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    background: white;
    transition: max-height 0.4s ease-out;
}

.timetable {
    list-style: none;
    padding: 0.5rem 1rem;
}

.event-item {
    display: flex;
    gap: 1rem;
    padding: 0.5rem 0;
    border-bottom: 1px dashed #eee;
}

.event-item:last-child {
    border-bottom: none;
}

.event-item .time {
    font-weight: 700;
    color: var(--col-secondary);
    min-width: 80px;
    font-size: 0.9rem;
    margin-top: 0.1rem;
}

.event-item .details h4 {
    font-size: 1rem;
    margin-bottom: 0;
    color: var(--col-text);
}

.event-item .details p {
    font-size: 0.85rem;
    color: var(--col-text-light);
}

#no-results-msg {
    text-align: center;
    padding: 2rem;
    color: var(--col-text-light);
    font-style: italic;
}

.hidden {
    display: none !important;
}

.hidden-section {
    display: none !important;
}

/* ==== Sponsor Us ==== */
.sponsor-call-to-action {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--col-bg);
    border-radius: var(--border-radius);
}

.sponsor-call-to-action p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--col-primary);
    font-weight: 500;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--col-secondary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn-download:hover {
    background: var(--col-tertiary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.subsection-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--col-text-light);
}

.sponsor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 1.5rem;
    align-items: center;
    justify-items: center;
}

@media (max-width: 400px) {
    .sponsor-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

.sponsor-logo {
    width: 100%;
    max-width: 150px;
    aspect-ratio: 3/2;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.sponsor-logo:hover {
    transform: scale(1.05);
}

.sponsor-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* ==== Footer ==== */
footer {
    text-align: center;
    padding: 2rem;
    background: var(--col-primary);
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

/* ==== Responsive ==== */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 0;
    }
    
    .hero-image-container {
        max-width: 100%;
        width: 100%;
        flex: none;
        box-shadow: none;
        margin: 0;
        padding: 0;
    }

    .hero-image {
        border-radius: 0;
        width: 100%;
        height: auto;
        max-height: none;
        object-fit: contain;
    }
    
    .welcome-message {
        margin: 0 auto;
    }

    .event-title {
        font-size: 2.5rem;
    }
    
    .quick-nav {
        gap: 0.5rem;
        padding: 0.75rem;
    }
    
    .nav-btn {
        padding: 0.75rem 1.25rem;
        font-size: 1rem;
    }
    
    .section-container {
        padding: 1.5rem 1rem;
    }
    
    .event-item {
        flex-direction: column;
        gap: 0.5rem;
    }
}