/* Custom Scrollbar */
.custom-scrollbar::-webkit-scrollbar {
    width: 8px;
}

/* Dark mode scrollbar */
.dark .custom-scrollbar::-webkit-scrollbar-track {
    background: #1e293b; /* slate-800 */
    border-radius: 10px;
}

.dark .custom-scrollbar::-webkit-scrollbar-thumb {
    background: #475569; /* slate-600 */
    border-radius: 10px;
}

.dark .custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #64748b; /* slate-500 */
}

/* Light mode scrollbar */
.light .custom-scrollbar::-webkit-scrollbar-track {
    background: #e2e8f0; /* gray-200 */
    border-radius: 10px;
}

.light .custom-scrollbar::-webkit-scrollbar-thumb {
    background: #94a3b8; /* slate-400 */
    border-radius: 10px;
}

.light .custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #64748b; /* slate-500 */
}


/* Sidebar Book 3D Effect */
.master-book {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    transform: perspective(1000px) rotateY(0deg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.master-book:hover:not(.active) {
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2), 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: perspective(1000px) rotateY(5deg) scale(1.02);
}

.master-book.active {
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.3), 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: perspective(1000px) rotateY(0deg) scale(1.03); /* Slight scale for active */
    border: 1px solid #3b82f6; /* Electric Blue border */
}

/* Chart Area Gradient - Placeholder visual */
/* Dark Mode default */
.chart-area {
    background: linear-gradient(to right bottom, #1a202c, #3b82f6, #1a202c); /* Dark to Electric Blue to Dark */
    border: 1px solid #3b82f6; /* Electric Blue border */
    position: relative;
    overflow: hidden;
}

.chart-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        45deg,
        rgba(255,255,255,0.05),
        rgba(255,255,255,0.05) 5px,
        transparent 5px,
        transparent 10px
    );
    opacity: 0.3;
    z-index: 1;
}

/* Light mode overrides for chart area if necessary - for now keeping it dark for contrast */
.light .chart-area {
    background: linear-gradient(to right bottom, #f3f4f6, #60a5fa, #f3f4f6); /* Light gray to light blue */
    border: 1px solid #60a5fa; /* Light blue border */
}
.light .chart-area::before {
    background: repeating-linear-gradient(
        45deg,
        rgba(0,0,0,0.05),
        rgba(0,0,0,0.05) 5px,
        transparent 5px,
        transparent 10px
    );
}


/* Active tab button styling (tailwind can handle most, but explicit active is here) */
.tab-button.active {
    background-color: #1e293b; /* slate-800 */
    color: #fff;
}
.light .tab-button.active {
    background-color: #fff; /* white */
    color: #1f2937; /* gray-900 */
}


/* Hide other tab panes */
.tab-pane {
    display: none;
}

.tab-pane.active-tab-pane {
    display: flex; /* or block, depending on content */
}

/* Basic for icons if needed */
svg {
    display: inline-block;
    vertical-align: middle;
}

/* Base colors for light/dark mode */
html.dark {
    --color-bg-primary: #0f172a; /* slate-900 */
    --color-text-primary: #e2e8f0; /* slate-200 */
    --color-bg-secondary: #1e293b; /* slate-800 */
    --color-border: #334155; /* slate-700 */
    --color-accent: #3b82f6; /* blue-600 */
}

html.light {
    --color-bg-primary: #f3f4f6; /* gray-100 */
    --color-text-primary: #1f2937; /* gray-900 */
    --color-bg-secondary: #ffffff; /* white */
    --color-border: #e5e7eb; /* gray-200 */
    --color-accent: #3b82f6; /* blue-600 */
}

/* Apply base colors */
body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
}

.dark .bg-slate-800 { background-color: var(--color-bg-secondary); }
.light .bg-slate-800 { background-color: var(--color-bg-secondary); }

.dark .text-white { color: var(--color-text-primary); }
.light .text-white { color: var(--color-text-primary); }

.dark .text-slate-400 { color: var(--color-text-primary); }
.light .text-slate-400 { color: var(--color-text-primary); }

/* Apply other theme dependent changes */
.dark .border-slate-700 { border-color: var(--color-border); }
.light .border-slate-700 { border-color: var(--color-border); }

.dark .bg-slate-900 { background-color: var(--color-bg-primary); }
.light .bg-slate-900 { background-color: var(--color-bg-primary); }

.dark .bg-blue-600 { background-color: var(--color-accent); }
.light .bg-blue-600 { background-color: var(--color-accent); }