/* --- Overall --- */
:root {
    --bg-gradient-start: #1a1a1a;
    --bg-gradient-end: #16213e;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --accent-color: #00aaff;
    --accent-hover: #0088cc;
    --card-bg: rgba(44, 62, 80, 0.5);
    --border-color: #34495e;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    color: var(--text-primary);
    margin: 0;
    height: 100vh;
    overflow: hidden;
}

/* --- Main Layout --- */
.container {
    display: flex;
    width: 100%;
    height: 100%;
}

.sidebar {
    width: 280px;
    background: var(--bg-gradient-start);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding-top: 25px;
    transition: width 0.3s ease;
}

.main-content {
    flex-grow: 1;
    height: 100vh;
}

.iframe-wrapper, .content-frame {
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
}

/* --- Sidebar Content --- */
.sidebar-header {
    padding: 0 25px 25px 25px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h1 {
    font-size: 22px;
    color: var(--accent-color);
    margin: 0;
    font-weight: 700;
}

.sidebar-header p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 5px;
}

.toc {
    list-style-type: none;
    padding: 15px 0;
    margin: 0;
    overflow-y: auto;
    flex-grow: 1;
}

.toc li a {
    display: block;
    padding: 13px 25px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    border-left: 4px solid transparent;
    transition: all 0.2s ease-in-out;
}

.toc li a:hover {
    background-color: var(--card-bg);
    color: var(--text-primary);
}

.toc li a.active {
    background-color: var(--card-bg);
    color: var(--accent-color);
    font-weight: 600;
    border-left-color: var(--accent-color);
}

/* --- Slide Content General --- */
.slide-body {
    padding: 30px 80px; /* Reduced vertical padding to create more space */
    background: transparent;
    color: var(--text-primary);
    height: 100vh;
    box-sizing: border-box;
    overflow-y: auto;
}

.slide-body h1, .slide-body h2, .slide-body h3 {
    color: var(--accent-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 15px;
    margin-bottom: 30px;
}

.slide-body h1 { font-size: 3vw; }
.slide-body h2 { font-size: 2.5vw; }
.slide-body h3 { font-size: 2vw; }

.slide-body p, .slide-body li {
    font-size: 1.2vw;
    line-height: 1.8;
    color: var(--text-primary);
}

.slide-body ul, .slide-body ol {
    padding-left: 25px;
}

.slide-body strong {
    color: var(--accent-color);
}

/* --- Specific Slide Layouts --- */

/* Cover Page */
.cover-layout {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100%;
    padding: 0 !important; /* Override default padding */
    background-image: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1534796636912-3b95b3ab5986?auto=format&fit=crop&w=1400');
    background-size: cover;
    background-position: center;
}
.cover-layout h1 {
    font-size: 64px;
    border: none;
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(0, 170, 255, 0.7);
}
.cover-layout p {
    font-size: 24px;
    color: var(--text-secondary);
    font-style: italic;
}

/* Force Column Layout */
.slide-column-layout {
    display: flex;
    flex-direction: column;
    justify-content: center; /* Aligns content vertically */
    align-items: center; /* Aligns content horizontally */
    height: 100%;
    text-align: center;
}



/* Agenda Page */
.agenda-list {
    list-style: none;
    padding: 0;
    width: 100%;
    max-width: 800px;
}
.agenda-item {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    border-left: 4px solid var(--accent-color);
}
.agenda-item i {
    font-size: 2vw;
    color: var(--accent-color);
    margin-right: 25px;
    width: 40px;
}
.agenda-text h3 {
    border: none;
    margin: 0 0 5px 0;
    padding: 0;
    font-size: 1.4vw;
    text-align: left;
}
.agenda-text p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 1vw;
    text-align: left;
}



/* Conclusion Box - IMPROVED */
.conclusion-box {
    width: 100%;
    box-sizing: border-box;
    border: 2px solid var(--accent-color, #ff8c00);
    background: rgba(255, 140, 0, 0.1);
    color: var(--accent-color, #ff8c00);
    padding: 20px;
    margin-top: 40px;
    border-radius: 8px;
    text-align: center;
    font-size: 18px;
    font-weight: bold;
}





/* --- Modal (Lightbox) with Pan & Zoom --- */
.thumbnail-container {
    margin-top: 40px;
    text-align: center;
}
.thumbnail-image {
    max-width: 100%;
    max-height: 100%;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: opacity 0.3s ease;
}
.thumbnail-image:hover {
    opacity: 0.8;
}

.modal {
    display: none; 
    position: fixed; 
    z-index: 1000; 
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%; 
    overflow: hidden; 
    background-color: rgba(0,0,0,0.9);
    /* New styles for centering */
    justify-content: center;
    align-items: center;
}

.modal-content {
    display: block;
    width: auto;
    height: auto;
    max-width: 90%;
    max-height: 90%;
    /* New styles for panning */
    position: relative; /* Important for positioning */
    cursor: grab;
    transition: transform 0.2s ease-out; /* Smooth zoom */
}

.modal-content.grabbing {
    cursor: grabbing;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
}

.modal-close:hover,
.modal-close:focus {
    color: #bbb;
    text-decoration: none;
}

/* --- Mermaid Diagram Scaling --- */
.mermaid {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* --- Page 3: Three Step Layout --- */
.three-step-container {
    position: relative;
    width: 100%;
    height: 75%;
    margin-top: 5%;
}

.step-card {
    position: absolute;
    width: 30%;
    height: 100%;
    top: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-around; /* Added to distribute content vertically */
    align-items: center;
    padding: 10px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-sizing: border-box;
    text-align: center;
}

.step-card h3 {
    border: none;
    padding: 0;
    margin-bottom: 15px;
    font-size: 1.5vw; /* Dynamic font size */
}

.step-card p {
    font-size: 1.1vw; /* Dynamic font size */
}

.step-card .key-info {
    font-size: 1.3vw; /* Larger font for key info */
    font-weight: bold;
    color: var(--text-secondary);
}

.step-arrow {
    position: absolute;
    top: 45%;
    font-size: 48px;
    color: var(--accent-color);
}

#step1 { left: 2%; }
#step2 { left: 35%; }
#step3 { left: 68%; }

#arrow1 { left: 32.5%; }
#arrow2 { left: 65.5%; }


/* --- Page 4: Cost Layout --- */
.cost-container {
    position: relative;
    width: 100%;
    height: 80%;
    margin-top: 2%;
}

.cost-card {
    position: absolute;
    width: 30%;
    height: 60%;
    top: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-sizing: border-box;
    text-align: center;
}

.cost-card .big-number {
    font-size: 3vw; /* Responsive font size */
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 10px;
}

#cost1 { left: 2%; }
#cost2 { left: 35%; }
#cost3 { left: 68%; }

.conclusion-box-absolute {
    position: absolute;
    bottom: 5%;
    left: 2%;
    width: 96%;
    box-sizing: border-box;
    border: 2px solid #ff8c00;
    background: rgba(255, 140, 0, 0.1);
    color: #ff8c00;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-size: 1.5vw;
    font-weight: bold;
}


/* --- Page 5: Table Layout --- */
.table-container-absolute {
    position: relative;
    width: 100%;
    height: 70%;
    margin-top: 5%;
}

.table-container-absolute table {
    width: 100%;
    height: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 10px;
    overflow: hidden; /* Ensures border-radius is respected */
}

.table-container-absolute th, .table-container-absolute td {
    border: 1px solid var(--border-color);
    padding: 1.5vh; /* Use viewport height for responsive padding */
    text-align: left;
    font-size: 1.5vh;
    vertical-align: middle; /* Centered as requested */
}

.table-container-absolute th {
    background-color: rgba(0, 170, 255, 0.2);
    color: var(--accent-color);
    font-size: 1.8vh;
}

.table-container-absolute .highlight-row {
    background-color: rgba(40, 167, 69, 0.15);
}


/* --- Page 7: Two Column Layout --- */
.two-column-container {
    position: relative;
    width: 100%;
    height: 85%;
    margin-top: 20px;
}

.column {
    position: absolute;
    top: 0;
    width: 48%;
    height: 100%;
    box-sizing: border-box;
    padding: 25px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.column-left {
    left: 0;
}

.column-left h4:first-child {
    position: absolute;
    top: 3%;
    left: 5%;
    width: 90%;
    margin: 0;
    font-size: 1.4vw;
}

.column-left p:first-of-type {
    position: absolute;
    top: 12%;
    left: 5%;
    width: 90%;
    margin: 0;
    font-size: 1.1vw;
}

.column-left table {
    position: absolute;
    top: 25%;
    left: 5%;
    width: 90%;
    height: 30%;
}

.column-left h4:nth-of-type(2) {
    position: absolute;
    top: 60%;
    left: 5%;
    width: 90%;
    margin: 0;
    font-size: 1.4vw;
}

.column-left ul {
    position: absolute;
    top: 68%;
    left: 5%;
    width: 90%;
    margin: 0;
    padding-left: 1.5vw;
    font-size: 1.1vw;
}

.column-left p:last-child {
    position: absolute;
    top: 85%;
    left: 5%;
    width: 90%;
    margin: 0;
    font-size: 1.1vw;
}

.column-right {
    left: 52%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.column-right img {
    max-width: 100%;
    max-height: 80%;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.column-right .caption {
    margin-top: 15px;
    font-size: 14px;
    color: var(--text-secondary);
    font-style: italic;
}

.column table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.column th, .column td {
    border: 1px solid var(--border-color);
    padding: 10px;
    text-align: left;
    font-size: 1.1vw;
}

.column th {
    background-color: var(--card-bg);
    color: var(--accent-color);
}


/* --- Page 8: Quadrant Layout --- */
.quadrant-layout-container {
    position: relative;
    width: 100%;
    height: 75%; /* Adjust as needed, leaves space for title */
    margin-top: 20px;
}

.quadrant-card {
    position: absolute;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-sizing: border-box;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.quadrant-card:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    border-color: var(--accent-color);
}

.quadrant-card .icon {
    font-size: 3vw; /* Larger icon */
    color: var(--accent-color);
    margin-bottom: 20px;
}

.quadrant-card h3 {
    border: none;
    padding: 0;
    margin: 0 0 10px 0;
    font-size: 1.4vw;
    text-align: center;
    color: var(--text-primary);
}

.quadrant-card p {
    font-size: 1vw;
    color: var(--text-secondary);
    margin: 0;
    text-align: center;
}

/* Positioning with percentages */
.q-top-left {
    top: 0;
    left: 0;
    width: 48%;
    height: 48%;
}

.q-top-right {
    top: 0;
    left: 52%;
    width: 48%;
    height: 48%;
}

.q-bottom-left {
    top: 52%;
    left: 0;
    width: 48%;
    height: 48%;
}

.q-bottom-right {
    top: 52%;
    left: 52%;
    width: 48%;
    height: 48%;
}

/* --- Page 2: Agenda Fill Layout --- */
.agenda-list-fill {
    display: flex;
    flex-direction: column;
    justify-content: space-around; /* Distribute items evenly */
    height: 100%;
}

.agenda-list-fill .agenda-item {
    flex-grow: 1; /* Allow items to grow and fill space */
    margin-bottom: 15px;
}
.agenda-list-fill .agenda-item:last-child {
    margin-bottom: 0;
}

/* --- Page 6: Top/Bottom Split Layout --- */
.split-container-top {
    position: absolute;
    top: 12%;
    left: 5%;
    width: 90%;
    height: 48%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.split-container-bottom {
    position: absolute;
    top: 62%;
    left: 5%;
    width: 90%;
    height: 35%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Force Mermaid SVG to fill container */
.mermaid svg {
    width: 100%;
    height: 100%;
}