/* ==========================================================================
   Steel Section Design Calculator CSS Stylesheet
   ========================================================================== */

:root {
    --ssd-primary: #0284c7;
    --ssd-primary-hover: #0369a1;
    --ssd-success: #16a34a;
    --ssd-danger: #dc2626;
    --ssd-warning: #ea580c;
    --ssd-card-bg: #ffffff;
    --ssd-bg-light: #f8fafc;
    --ssd-border: #e2e8f0;
    --ssd-text-main: #0f172a;
    --ssd-text-muted: #64748b;
    --ssd-radius: 8px;
    --ssd-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
}

[data-theme="dark"] {
    --ssd-card-bg: #1e293b;
    --ssd-bg-light: #0f172a;
    --ssd-border: #334155;
    --ssd-text-main: #f8fafc;
    --ssd-text-muted: #94a3b8;
}

/* Base Wrapper */
.ssd-calc-wrapper {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--ssd-text-main);
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
}

/* Two Column Grid */
.ssd-calc-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 24px;
    align-items: start;
    margin-bottom: 30px;
}

@media (max-width: 992px) {
    .ssd-calc-grid {
        grid-template-columns: 1fr;
    }
}

/* Card Style */
.ssd-card {
    background: var(--ssd-card-bg);
    border: 1px solid var(--ssd-border);
    border-radius: var(--ssd-radius);
    padding: 20px;
    box-shadow: var(--ssd-shadow);
    margin-bottom: 20px;
}

.ssd-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 16px;
    border-bottom: 2px solid var(--ssd-border);
    padding-bottom: 8px;
    color: var(--ssd-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Custom Button Selector Groups */
.ssd-button-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 8px;
    margin-bottom: 16px;
}

.ssd-btn-select {
    background: var(--ssd-bg-light);
    border: 1px solid var(--ssd-border);
    color: var(--ssd-text-main);
    padding: 10px 8px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
}

.ssd-btn-select:hover {
    border-color: var(--ssd-primary);
}

.ssd-btn-select.active {
    background: var(--ssd-primary);
    border-color: var(--ssd-primary);
    color: #ffffff !important;
}

/* Form Controls */
.ssd-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

@media (max-width: 576px) {
    .ssd-form-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }
}

.ssd-form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ssd-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ssd-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ssd-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.ssd-input {
    width: 100%;
    padding: 8px 36px 8px 10px;
    background: var(--ssd-bg-light);
    border: 1px solid var(--ssd-border);
    color: var(--ssd-text-main);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 6px;
    outline: none;
    transition: all 0.15s ease;
}

.ssd-input:focus {
    border-color: var(--ssd-primary);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

.ssd-unit-addon {
    position: absolute;
    right: 10px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--ssd-text-muted);
    pointer-events: none;
}

/* Alerts and Messages */
.ssd-alert {
    padding: 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    display: none;
    line-height: 1.4;
}

.ssd-alert-danger {
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid var(--ssd-danger);
    color: var(--ssd-danger);
}

.ssd-alert-info {
    background: rgba(2, 132, 199, 0.08);
    border: 1px solid var(--ssd-primary);
    color: var(--ssd-primary);
}

/* Action Buttons */
.ssd-action-row {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.ssd-btn-primary {
    flex: 1.5;
    background: var(--ssd-primary);
    border: 1px solid var(--ssd-primary);
    color: #ffffff;
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 700;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s;
    text-align: center;
}

.ssd-btn-primary:hover {
    background: var(--ssd-primary-hover);
}

.ssd-btn-secondary {
    flex: 1;
    background: none;
    border: 1px solid var(--ssd-border);
    color: var(--ssd-text-main);
    padding: 10px 16px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s;
    text-align: center;
}

.ssd-btn-secondary:hover {
    background: var(--ssd-bg-light);
}

/* Interactive SVG Diagram Box */
.ssd-diagram-container {
    background: var(--ssd-bg-light);
    border: 1px solid var(--ssd-border);
    border-radius: var(--ssd-radius);
    padding: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 240px;
    margin-bottom: 20px;
}

.ssd-diagram-svg {
    max-width: 100%;
    height: auto;
}

/* Results Display Components */
.ssd-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px;
    border-radius: 6px;
    margin-bottom: 16px;
}

.ssd-results-header.pass {
    background: rgba(22, 163, 74, 0.08);
    border: 1px solid var(--ssd-success);
    color: var(--ssd-success);
}

.ssd-results-header.fail {
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid var(--ssd-danger);
    color: var(--ssd-danger);
}

.ssd-results-header.unchecked {
    background: rgba(234, 88, 12, 0.08);
    border: 1px solid var(--ssd-warning);
    color: var(--ssd-warning);
}

.ssd-results-badge {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 0.5px;
}

/* Tables */
.ssd-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 16px;
}

.ssd-table th {
    text-align: left;
    padding: 6px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--ssd-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--ssd-border);
}

.ssd-table td {
    padding: 8px 10px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--ssd-border);
    color: var(--ssd-text-main);
}

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

/* Progress bar inside table cell */
.ssd-bar-wrap {
    width: 100%;
    height: 8px;
    background: var(--ssd-bg-light);
    border: 1px solid var(--ssd-border);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 4px;
}

.ssd-bar-fill {
    height: 100%;
    width: 0%;
    transition: width 0.3s ease;
}

.ssd-util-num {
    font-weight: 700;
}

/* Print Overrides */
@media print {
    .no-print, button, .ssd-action-row, .ssd-button-group {
        display: none !important;
    }
    .ssd-calc-grid {
        grid-template-columns: 1fr !important;
    }
    .ssd-card {
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        page-break-inside: avoid;
    }
}

/* Status Badges */
.ssd-check-badge {
    display: inline-block;
    padding: 3px 8px;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 4px;
    text-transform: uppercase;
}
.ssd-check-badge.pass {
    background: rgba(22, 163, 74, 0.1);
    color: var(--ssd-success);
    border: 1px solid var(--ssd-success);
}
.ssd-check-badge.fail {
    background: rgba(220, 38, 38, 0.1);
    color: var(--ssd-danger);
    border: 1px solid var(--ssd-danger);
}
.ssd-check-badge.info {
    background: rgba(2, 132, 199, 0.1);
    color: var(--ssd-primary);
    border: 1px solid var(--ssd-primary);
}