@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root {
    /* Light Theme (Default) */
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --heading-color: #111827;
    --accent-color: #0f4c81; /* Corporate Blue */
    --accent-hover: #0a355c;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    
    /* Presentation specific */
    --slide-padding: 4rem 4rem 8rem 4rem; /* More padding at bottom to prevent unreadable text */
    --font-base: 24px; /* Large font for 15ft reading */
    --transition-speed: 0.4s;
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-color: #0f172a;
    --text-color: #f1f5f9;
    --heading-color: #ffffff;
    --accent-color: #3b82f6; 
    --accent-hover: #60a5fa;
    --card-bg: #1e293b;
    --border-color: #334155;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: var(--font-base);
    line-height: 1.6;
    overflow: hidden; /* Hide scrollbars for presentation */
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

h1, h2, h3, h4 {
    color: var(--heading-color);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

h1 {
    font-size: 4rem;
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 { font-size: 3rem; }
h3 { font-size: 2.2rem; }

/* Layout & Slides */
.presentation-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: var(--slide-padding);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed) ease-in-out, transform var(--transition-speed) ease-in-out;
    transform: translateY(20px);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.slide-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
}

.center-slide {
    justify-content: center;
    align-items: center;
    text-align: center;
}

/* Title Slide */
.title-slide .logo {
    max-height: 150px;
    margin-bottom: 2rem;
}

/* Tables */
.table-container {
    width: 100%;
    overflow-x: auto;
    background-color: var(--card-bg);
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    position: relative;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em; /* slightly smaller font for compactness */
}

th, td {
    padding: 0.75rem 1rem; /* compact padding */
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: rgba(0,0,0,0.02);
    font-weight: 600;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.9em;
}

[data-theme="dark"] th {
    background-color: rgba(255,255,255,0.02);
}

tr:last-child td {
    border-bottom: none;
}

/* Charts */
.chart-container {
    width: 100%;
    height: 50vh;
    background-color: var(--card-bg);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    position: relative;
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Focus Mode */
.focus-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s, background 0.2s;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.table-container:hover .focus-btn, 
.chart-container:hover .focus-btn {
    opacity: 1;
}

.focus-btn:hover {
    background: var(--accent-hover);
}

/* When focused */
.focused-element {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 9999 !important;
    border-radius: 0 !important;
    padding: 3rem !important;
    margin: 0 !important;
    display: flex;
    flex-direction: column;
}

.focused-element table {
    font-size: 1.2em; /* Larger in focus mode */
}
.focused-element .chart-wrapper {
    height: 100%;
    width: 100%;
}

/* Controls */
.controls {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    gap: 1rem;
    z-index: 100;
}

.control-btn {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    transition: all 0.2s;
}

.control-btn:hover {
    background-color: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 100;
}

.theme-toggle .control-btn {
    font-size: 1.2rem;
}

/* Inferences */
.inference-box {
    background: rgba(15, 76, 129, 0.1);
    border-left: 5px solid var(--accent-color);
    padding: 1.5rem;
    margin-top: 1.5rem;
    border-radius: 0 0.5rem 0.5rem 0;
    font-size: 1.1rem;
}

[data-theme="dark"] .inference-box {
    background: rgba(59, 130, 246, 0.1);
}

.inference-box strong {
    color: var(--accent-color);
    display: block;
    margin-bottom: 0.5rem;
}

/* Benchmark Card */
.benchmark-card {
    background-color: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.8em;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}