/* Vital Signs Calculator Styles */

.vsc-container {
    --vsc-accent: #2563eb;
    --vsc-accent-light: #3b82f6;
    --vsc-accent-dark: #1d4ed8;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: #333;
    line-height: 1.6;
}

.vsc-container * {
    box-sizing: border-box;
}

/* Header */
.vsc-header {
    text-align: center;
    margin-bottom: 25px;
    padding: 30px 20px;
    background: linear-gradient(135deg, var(--vsc-accent) 0%, var(--vsc-accent-light) 100%);
    border-radius: 16px;
    color: white;
}

.vsc-title {
    margin: 0 0 10px 0;
    font-size: 28px;
    font-weight: 700;
}

.vsc-subtitle {
    margin: 0;
    font-size: 16px;
    opacity: 0.9;
}

/* Tabs */
.vsc-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 12px;
}

.vsc-tab {
    flex: 1;
    min-width: 120px;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    background: transparent;
    color: #666;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.vsc-tab:hover {
    background: #e9ecef;
    color: #333;
}

.vsc-tab.vsc-active {
    background: var(--vsc-accent);
    color: white;
}

.vsc-tab:focus {
    outline: 2px solid var(--vsc-accent);
    outline-offset: 2px;
}

/* Panels */
.vsc-panel {
    display: none;
}

.vsc-panel.vsc-active {
    display: block;
    animation: vsc-fadeIn 0.3s ease;
}

@keyframes vsc-fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Cards */
.vsc-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e8ecf0;
}

.vsc-card-title {
    margin: 0 0 8px 0;
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.vsc-card-desc {
    margin: 0 0 20px 0;
    font-size: 14px;
    color: #666;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f2f5;
}

/* Form Elements */
.vsc-form-group {
    margin-bottom: 16px;
}

.vsc-form-group > label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #555;
    font-size: 14px;
}

.vsc-form-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.vsc-half { flex: 1; min-width: 200px; }
.vsc-third { flex: 1; min-width: 140px; }
.vsc-quarter { flex: 1; min-width: 100px; }

.vsc-input,
.vsc-select {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.vsc-input:focus,
.vsc-select:focus {
    border-color: var(--vsc-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    outline: none;
}

.vsc-input-with-unit {
    display: flex;
    gap: 8px;
}

.vsc-input-with-unit .vsc-input {
    flex: 1;
}

.vsc-unit-select {
    width: auto;
    padding: 12px 10px;
    font-size: 14px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    background: white;
}

/* Reading rows for average BP */
.vsc-reading-row {
    margin-bottom: 12px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
}

.vsc-reading-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.vsc-reading-inputs .vsc-input {
    width: 100px;
}

.vsc-reading-inputs span {
    color: #666;
    font-weight: 500;
}

/* Buttons */
.vsc-button-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.vsc-button {
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: var(--vsc-accent);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.vsc-button:hover {
    background: var(--vsc-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

.vsc-button:active {
    transform: translateY(0);
}

.vsc-button.vsc-secondary {
    background: #6b7280;
}

.vsc-button.vsc-secondary:hover {
    background: #4b5563;
}

/* Results */
.vsc-results {
    animation: vsc-fadeIn 0.4s ease;
}

.vsc-results-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.vsc-result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.vsc-result-box {
    background: white;
    padding: 16px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.vsc-result-wide {
    grid-column: 1 / -1;
}

.vsc-result-label {
    display: block;
    font-size: 12px;
    color: #666;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.vsc-result-value {
    display: block;
    font-size: 22px;
    font-weight: 700;
    color: var(--vsc-accent);
}

.vsc-result-note {
    display: block;
    font-size: 11px;
    color: #888;
    margin-top: 4px;
}

/* Classification colors */
.vsc-result-value.vsc-normal { color: #10b981; }
.vsc-result-value.vsc-elevated { color: #f59e0b; }
.vsc-result-value.vsc-stage1 { color: #f97316; }
.vsc-result-value.vsc-stage2 { color: #ef4444; }
.vsc-result-value.vsc-crisis { color: #dc2626; }
.vsc-result-value.vsc-low-risk { color: #10b981; }
.vsc-result-value.vsc-moderate-risk { color: #f59e0b; }
.vsc-result-value.vsc-high-risk { color: #ef4444; }

.vsc-advice {
    margin: 16px 0;
    padding: 12px 16px;
    background: #eff6ff;
    border-left: 4px solid var(--vsc-accent);
    border-radius: 0 8px 8px 0;
    font-size: 14px;
    color: #1e40af;
}

.vsc-note {
    font-size: 12px;
    color: #888;
    font-style: italic;
    margin-top: 12px;
}

/* Tables */
.vsc-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
    font-size: 14px;
}

.vsc-table th,
.vsc-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.vsc-table th {
    background: #f3f4f6;
    font-weight: 600;
    color: #374151;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.vsc-table tr:hover {
    background: #f9fafb;
}

/* Actions */
.vsc-actions {
    margin-top: 16px;
    display: flex;
    gap: 10px;
}

.vsc-copy-btn {
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    color: var(--vsc-accent);
    background: white;
    border: 2px solid var(--vsc-accent);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.vsc-copy-btn:hover {
    background: var(--vsc-accent);
    color: white;
}

/* Disclaimer */
.vsc-disclaimer {
    margin-top: 20px;
    padding: 16px;
    background: #fef3c7;
    border-radius: 10px;
    border-left: 4px solid #f59e0b;
}

.vsc-disclaimer p {
    margin: 0;
    font-size: 13px;
    color: #92400e;
}

/* Responsive */
@media (max-width: 768px) {
    .vsc-container {
        padding: 15px;
    }
    
    .vsc-header {
        padding: 20px 15px;
    }
    
    .vsc-title {
        font-size: 22px;
    }
    
    .vsc-tabs {
        flex-direction: column;
    }
    
    .vsc-tab {
        min-width: 100%;
    }
    
    .vsc-form-row {
        flex-direction: column;
    }
    
    .vsc-half,
    .vsc-third,
    .vsc-quarter {
        min-width: 100%;
    }
    
    .vsc-button-row {
        flex-direction: column;
    }
    
    .vsc-button {
        width: 100%;
    }
    
    .vsc-result-grid {
        grid-template-columns: 1fr;
    }
    
    .vsc-table {
        font-size: 12px;
    }
    
    .vsc-table th,
    .vsc-table td {
        padding: 8px;
    }
    
    .vsc-reading-inputs .vsc-input {
        width: 80px;
    }
}

/* Number input styling */
.vsc-input::-webkit-outer-spin-button,
.vsc-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.vsc-input[type=number] {
    -moz-appearance: textfield;
}

/* Focus visible for accessibility */
.vsc-tab:focus-visible,
.vsc-button:focus-visible,
.vsc-input:focus-visible,
.vsc-select:focus-visible {
    outline: 2px solid var(--vsc-accent);
    outline-offset: 2px;
}