/* Page-specific styles for the Toxicology Body Burden tool. */

.calculator-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
    min-height: calc(100vh - 300px);
}

.calculator-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
}

.panel-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.panel-header h2 { font-size: 1.5rem; margin-bottom: 4px; }
.panel-header p { color: var(--text-secondary); font-size: 0.9375rem; }

/* Input Grid */
.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.input-group label {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 600;
}

.main-input, .main-select {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}
.main-input:focus, .main-select:focus { border-color: var(--accent-engineering); }

.unit-group { display: flex; gap: 8px; }
.unit-select {
    width: 130px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-primary);
    outline: none;
}

/* Mode Selection Cards */
.mode-container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.mode-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}
.mode-card:hover { border-color: var(--accent-engineering); background: var(--bg-card); }
.mode-card.active {
    border-color: var(--accent-engineering);
    background: var(--accent-engineering-dim);
}
.mode-card input { display: none; }
.mode-title { font-size: 0.8rem; font-weight: 700; color: var(--text-primary); display: block; margin-bottom: 4px; }
.mode-desc { font-size: 0.7rem; color: var(--text-secondary); line-height: 1.3; display: block; }

/* Custom Vd Input */
.custom-vd-wrapper {
    margin-top: 12px;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px dashed var(--border-color);
    border-radius: 6px;
    display: none;
}
.custom-vd-wrapper.visible { display: block; }

/* Kinetic Toggle Area */
.kinetic-wrapper {
    margin-bottom: 24px;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}
.kinetic-header {
    display: flex; align-items: center; gap: 10px; cursor: pointer;
}
.kinetic-header input { width: 16px; height: 16px; accent-color: var(--accent-engineering); }
.kinetic-label { font-size: 0.9rem; font-weight: 600; color: var(--text-primary); }
.kinetic-content {
    margin-top: 16px;
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.kinetic-content.visible { display: grid; }

/* Result Box */
.result-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    margin-top: auto;
}
.result-row {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border-color);
}
.result-row:last-child { border: none; margin: 0; padding: 0; }
.res-label { font-family: 'Space Grotesk', sans-serif; color: var(--text-secondary); font-size: 0.9rem; }
.res-value { font-family: 'JetBrains Mono', monospace; font-size: 1.25rem; font-weight: 700; color: var(--accent-engineering); }
.res-sub { font-size: 0.8rem; color: var(--text-muted); font-weight: 400; margin-left: 4px; }

/* Ledger */
.calc-ledger {
    margin-top: 20px; padding: 16px; background: var(--bg-card); border: 1px dashed var(--border-color);
    border-radius: 6px; font-family: 'JetBrains Mono', monospace; font-size: 0.75rem;
    color: var(--text-secondary); line-height: 1.6;
}
.ledger-title { font-size: 0.7rem; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; font-weight: 600; }
.ledger-line { margin-bottom: 6px; display: flex; justify-content: space-between; }

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.sidebar-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 16px 0;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

/* Warning Box (Sidebar) */
.critical-warning {
    background: var(--bg-card); border: 1px solid rgba(239, 68, 68, 0.4);
    border-left: 4px solid rgba(239, 68, 68, 0.8); border-radius: 8px; padding: 20px; margin-top: 0;
}
.warning-title {
    color: #ef4444; font-size: 0.8rem; text-transform:uppercase; margin-bottom: 12px; font-weight: 700;
    display: flex; align-items: center; gap: 8px; letter-spacing: 0.05em;
}
.warning-text p { font-size: 0.75rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 10px; }
.warning-text p:last-child { margin-bottom: 0; }
.warning-text p strong { color: var(--text-primary); }

/* Sidebar Tables */
.sidebar-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
    margin-top: 0;
}
.sidebar-table thead th {
    text-align: left;
    color: var(--text-secondary);
    padding: 8px 6px;
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.sidebar-table tbody td {
    padding: 8px 6px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
}
.sidebar-table tbody tr:last-child td {
    border-bottom: none;
}
.sidebar-table tbody tr:hover {
    background: var(--bg-secondary);
}

/* Dropdowns */
.dropdown-container {
    margin-top: 24px; border: 1px solid var(--border-color); border-radius: 8px; background: var(--bg-card); overflow: hidden;
}
.dropdown-header {
    padding: 16px; background: var(--bg-secondary); cursor: pointer; display: flex;
    justify-content: space-between; align-items: center; font-weight: 600; font-family: 'Space Grotesk';
}
.dropdown-content {
    padding: 24px; display: none; font-size: 0.9rem; line-height: 1.6; color: var(--text-secondary); border-top: 1px solid var(--border-color);
}
.dropdown-content.open { display: block; }

/* Math Blocks */
.math-block {
    background: var(--bg-primary); border-left: 3px solid var(--accent-engineering);
    padding: 12px; margin: 12px 0; font-family: 'JetBrains Mono', monospace; font-size: 0.85rem; color: var(--text-primary);
}
.variable { color: var(--accent-engineering); font-weight: bold; }

/* Preset coefficient chips */
.tag[data-coeff] { cursor: pointer; }
.tag[data-coeff]:hover,
.tag[style*="cursor:pointer"]:hover,
.tag.clickable:hover {
    border-color: var(--accent-engineering);
    color: var(--accent-engineering);
    background: var(--accent-engineering-dim);
}

.hidden { display: none; }

@media (max-width: 1024px) {
    .calculator-layout { grid-template-columns: 1fr; }
    .mode-container { grid-template-columns: 1fr; }
}