/* =========================================
   1. VARIABLES & RESET
   ========================================= */
:root {
    /* Color Palette */
    --bg-color: #F9F7F2;        /* Soft Cream */
    --text-primary: #2C3E50;    /* Dark Slate (Readable Text) */
    --text-secondary: #5D6D7E;  /* Muted Blue-Grey */
    --accent-blue: #4A5D6A;     /* Slate Blue */
    --accent-olive: #8C9375;    /* Muted Olive Green */
    --accent-Dolive: #5d6d29;    /* Dark Olive Green */
    --accent-Dblue: #150766;    /* Dark blue*/
    --card-bg: #FFFFFF;         /* Pure White */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.05);
    
    /* Typography */
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    
    /* Spacing */
    --container-width: 900px;
    --spacing-md: 2rem;
    --border-radius: 8px;
}

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

/* 1. The Body (Just holds content now) */
body {
    /* Your Original Setup */
    background-image: url("Images/Background.webp");
    background-color: var(--bg-color); /* Fallback */
    color: var(--text-primary);
    
    /* The property causing the jump (but we are restoring it for now) */
    background-attachment: fixed;
    background-position: bottom center;
    background-size: cover;
    background-repeat: no-repeat;
    
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 90vh;
    height: 90vh; 
}
html, body {
    height: 100%;
    overflow: hidden; /* Stop the main window from scrolling */
}
.scroll-wrapper {
    height: 100%;
    overflow-y: auto; /* Let this inner div scroll instead */
    -webkit-overflow-scrolling: touch; /* Smooth scroll for iOS */
}
/* MOBILE OVERRIDE: When screen is narrower than 768px (Tablets/Phones) */
@media (max-width: 768px) {
    #background-layer {
        /* On mobile, center the image so we see the middle/subject */
        background-position: center center;
    }
}
/* =========================================
   2. HEADER & LAYOUT
   ========================================= */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.app-header {
    text-align: center;
    padding: 4rem 0 3rem;
}

.logo {
    font-family: var(--font-serif);
    font-size: 3.9rem;
    font-weight: 700;
    color: var(--accent-Dblue);
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-family: var(--font-sans);
    font-size: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-Dolive);
}

/* =========================================
   3. THE TIMELINE (The Spine)
   ========================================= */
.timeline {
    position: relative;
    padding: 3rem 0;
}

/* =========================================
   THE SPIRALING VINE 
   ========================================= */
.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 60px; /* Wider to allow the vine to curve left/right */
    
    /* Updated SVG:
       1. The 'stem' path uses Bezier curves (Q) to wave back and forth.
       2. Leaves are placed at different heights with different rotations.
       3. ViewBox is 0 0 40 160 (Longer pattern to hide repetition).
    */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='160' viewBox='0 0 60 160'%3E%3C!-- The Vine Stem (Curving Sine Wave) --%3E%3Cpath d='M30,0 Q50,40 30,80 Q10,120 30,160' stroke='%238C9375' stroke-width='2' fill='none'/%3E%3C!-- Leaf 1 (Right, angled up) --%3E%3Cpath d='M30,20 Q45,10 50,25 Q40,35 30,20' fill='%236B8E23'/%3E%3C!-- Leaf 2 (Left, angled down) --%3E%3Cpath d='M30,60 Q15,70 10,55 Q20,45 30,60' fill='%23556B2F'/%3E%3C!-- Leaf 3 (Right, small, horizontal) --%3E%3Cpath d='M30,100 Q45,100 48,110 Q35,115 30,100' fill='%238C9375'/%3E%3C!-- Leaf 4 (Left, angled up high) --%3E%3Cpath d='M30,140 Q15,130 10,145 Q20,155 30,140' fill='%236B8E23'/%3E%3C/svg%3E");
    
    background-repeat: repeat-y;
    background-position: center top;
    transform: translateX(-50%);
    
    opacity: 0.8; /* Slightly more visible now that it's decorative */
    z-index: 0;
    pointer-events: none; /* Let clicks pass through to anything behind it */
}

/* =========================================
   4. TIMELINE ITEMS (The Nodes)
   ========================================= */
.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    width: 100%;
    opacity: 0; /* Hidden initially for animation */
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1); /* Smooth ease-out */
}

/* Class added by JS when scrolled into view */
.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* The Dot on the Line */
.timeline-marker {
    position: absolute;
    left: 50%;
    top: 24px; /* Align with card title */
    width: 16px;
    height: 16px;
    background-color: var(--accent-olive);
    border: 3px solid var(--bg-color); /* Creates a "cutout" effect */
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 2;
    transition: transform 0.3s ease;
}

.timeline-item:hover .timeline-marker {
    transform: translateX(-50%) scale(1.3);
    background-color: var(--accent-blue);
}

/* The Card Content */
.timeline-content {
    position: relative;
    width: 45%; 
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    border-left: 4px solid transparent;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

/* Update hover state to be slightly more active */
.timeline-content:hover {
    transform: translateY(-5px) scale(1.02); /* Slight scale up */
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* Alternate Sides: Odd items left, Even items right */
.timeline-item:nth-child(odd) .timeline-content {
    left: 0;
    text-align: right;
    border-left: none;
    border-right: 4px solid transparent;
}

.timeline-item:nth-child(even) .timeline-content {
    left: 55%; /* Push to right side */
    text-align: left;
    border-left: 4px solid transparent;
}

/* Hover Effects */
.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.timeline-item:nth-child(even) .timeline-content:hover {
    border-left-color: var(--accent-blue);
}
.timeline-item:nth-child(odd) .timeline-content:hover {
    border-right-color: var(--accent-blue);
}

/* Card Typography */
.date-badge {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-olive);
    margin-bottom: 0.5rem;
}

.event-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.event-snippet {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 1.5rem;
}


.read-more-btn:hover {
    border-bottom-color: var(--accent-blue);
}

/* =========================================
   5. MODAL (The Detail View)
   ========================================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 62, 80, 0.85); /* Dark overlay */
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background: var(--card-bg);
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    overflow-y: auto;
    border-radius: var(--border-radius);
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    padding: 0;
}

.modal-overlay.open .modal-content {
    transform: scale(1);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: white; /* Visible on hero image */
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    z-index: 10;
}

.modal-hero img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.modal-body {
    padding: 2rem;
}

.meta-date {
    color: var(--accent-olive);
    font-weight: 600;
    display: block;
    margin-bottom: 0.5rem;
}

.serif-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.scripture-ref {
    margin-top: 2rem;
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-top: 1px solid #eee;
    padding-top: 1rem;
}

/* =========================================
   6. RESPONSIVE DESIGN
   ========================================= */
@media (max-width: 768px) {
    .timeline::before {
        left: 20px; /* Move line to left edge */
    }

    .timeline-marker {
        left: 20px; /* Align dot with line */
    }

    .timeline-item {
        margin-bottom: 3rem;
    }

    /* Stack cards on the right of the line */
    .timeline-content,
    .timeline-item:nth-child(even) .timeline-content,
    .timeline-item:nth-child(odd) .timeline-content {
        width: calc(100% - 60px); /* Full width minus space for line */
        left: 50px; /* Push past the line */
        text-align: left;
        border-right: none;
        border-left: 4px solid transparent;
    }
    
    .logo { font-size: 2.5rem; }
}