/* ═══════════════════════════════════════════════════════════════════════
   WealthPath – Goal Seek Module Styles
   ═══════════════════════════════════════════════════════════════════════ */

/* ── Mode Toggle ──────────────────────────────────────────────────────── */
.mode-toggle {
    display: flex;
    gap: 2px;
    background: var(--card-bg);
    border-radius: 10px;
    padding: 3px;
    border: 1px solid var(--border);
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.mode-btn:hover {
    color: var(--text-primary);
    background: var(--hover-bg, rgba(14, 116, 144, 0.06));
}

.mode-btn.active {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 2px 8px rgba(14, 116, 144, 0.3);
}

.mode-icon {
    font-size: 14px;
}

/* ── Goal Seek Hero ──────────────────────────────────────────────────── */
.gs-hero {
    background: linear-gradient(135deg, rgba(14, 116, 144, 0.06), rgba(236, 72, 153, 0.04));
}

[data-theme="dark"] .gs-hero {
    background: linear-gradient(135deg, rgba(14, 116, 144, 0.12), rgba(236, 72, 153, 0.06));
}

/* ── Section Headings ─────────────────────────────────────────────────── */
.gs-section-heading {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 16px;
    color: var(--text-primary);
}

/* ── Anchor Card ──────────────────────────────────────────────────────── */
.gs-anchor-card {
    padding: 24px;
    margin-bottom: 16px;
}

.gs-anchor-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.gs-anchor-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.gs-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.gs-input {
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg);
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
}

.gs-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(14, 116, 144, 0.12);
}

.gs-input-large {
    font-size: 18px;
    padding: 12px 16px;
}

.gs-hint {
    font-size: 11px;
    color: var(--text-tertiary);
}

.gs-select {
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg);
    cursor: pointer;
    min-width: 240px;
}

/* ── Solve Mode Buttons ───────────────────────────────────────────────── */
.gs-mode-card {
    padding: 24px;
    margin-bottom: 16px;
}

.gs-mode-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.gs-mode-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 16px 12px;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--bg);
    cursor: pointer;
    transition: all 0.25s ease;
}

.gs-mode-btn:hover {
    border-color: var(--accent);
    background: rgba(14, 116, 144, 0.04);
}

.gs-mode-btn.active {
    border-color: var(--accent);
    background: rgba(14, 116, 144, 0.08);
    box-shadow: 0 0 0 3px rgba(14, 116, 144, 0.12);
}

.gs-mode-icon {
    font-size: 24px;
}

.gs-mode-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
}

.gs-mode-desc {
    font-size: 11px;
    color: var(--text-tertiary);
    text-align: center;
}

.gs-sip-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.gs-mode-guide {
    margin-top: 14px;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--card);
    border-left: 4px solid var(--accent);
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.55;
}

.gs-mode-guide-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.gs-mode-guide-meta {
    margin-top: 8px;
    color: var(--text-tertiary);
    font-size: 11px;
}

/* ── Country Preset ──────────────────────────────────────────────────── */
.gs-preset-card {
    padding: 24px;
    margin-bottom: 16px;
}

.gs-preset-row {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

/* ── Sliders ──────────────────────────────────────────────────────────── */
.gs-sliders-card {
    padding: 24px;
    margin-bottom: 16px;
}

.gs-sliders-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.gs-slider-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.gs-slider-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gs-slider-val {
    font-weight: 800;
    color: var(--accent);
    font-size: 13px;
    min-width: 45px;
    text-align: right;
}

/* Range Slider Styling */
.gs-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
    transition: background 0.2s;
}

.gs-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(14, 116, 144, 0.4);
    transition: transform 0.15s, box-shadow 0.15s;
}

.gs-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 2px 10px rgba(14, 116, 144, 0.5);
}

.gs-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(14, 116, 144, 0.4);
}

.gs-extra-params {
    margin-top: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.gs-extra-params .gs-input,
.gs-extra-params .gs-select {
    max-width: 100%;
    min-width: 0;
}

/* ── Calculate Button ─────────────────────────────────────────────────── */
.gs-calc-btn {
    font-size: 16px;
    padding: 14px 32px;
}

/* ── Solution Card ────────────────────────────────────────────────────── */
.gs-solution-card {
    padding: 32px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    border: none;
    position: relative;
    overflow: hidden;
}

.gs-solution-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.gs-solution-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.gs-solution-icon {
    font-size: 42px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.gs-solution-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.gs-solution-label {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
}

.gs-solution-value {
    font-size: 36px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
}

.gs-loading {
    opacity: 0.6;
    pointer-events: none;
}

#gs-solver-notes {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.gs-note {
    border: 1px solid var(--border);
    border-left-width: 4px;
    border-radius: 10px;
    background: var(--card);
    padding: 10px 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.gs-note-info {
    border-left-color: #2563eb;
}

.gs-note-warn {
    border-left-color: #f59e0b;
}

/* ── KPI Layout ───────────────────────────────────────────────────────── */
.gs-kpi-layout {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Rows */
.gs-kpi-row-full {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.gs-kpi-row-half {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.gs-kpi-row-third {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

/* Section Container */
.gs-kpi-section {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    border-top: 3px solid var(--section-accent, var(--accent));
    transition: box-shadow 0.25s;
}

.gs-kpi-section:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] .gs-kpi-section:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Section Header */
.gs-kpi-section-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px 10px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(14, 116, 144, 0.02), transparent);
}

[data-theme="dark"] .gs-kpi-section-header {
    background: linear-gradient(180deg, rgba(14, 116, 144, 0.04), transparent);
}

.gs-kpi-section-icon {
    font-size: 18px;
    line-height: 1;
}

.gs-kpi-section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    flex: 1;
    letter-spacing: 0.2px;
}

.gs-kpi-section-count {
    font-size: 10px;
    font-weight: 700;
    color: var(--section-accent, var(--accent));
    background: color-mix(in srgb, var(--section-accent, var(--accent)) 10%, transparent);
    padding: 2px 8px;
    border-radius: 10px;
    line-height: 1.4;
}

/* Section Grid */
.gs-kpi-section-grid {
    display: grid;
    gap: 1px;
    background: var(--border);
    padding: 0;
}

.gs-kpi-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.gs-kpi-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.gs-kpi-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* KPI Item */
.gs-kpi-item {
    background: var(--card-bg);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: background 0.2s;
}

.gs-kpi-item:hover {
    background: color-mix(in srgb, var(--section-accent, var(--accent)) 3%, var(--card-bg));
}

/* Primary KPI — accent left border */
.gs-kpi-primary {
    border-left: 3px solid var(--section-accent, var(--accent));
}

.gs-kpi-item-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--text-secondary);
    line-height: 1.3;
}

.gs-kpi-item-value {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.3px;
    line-height: 1.2;
}

.gs-kpi-primary .gs-kpi-item-value {
    color: var(--section-accent, var(--accent));
}

.gs-kpi-item-info {
    font-size: 10px;
    color: var(--text-tertiary);
    line-height: 1.3;
    margin-top: 2px;
}

/* ── Charts ───────────────────────────────────────────────────────────── */
.gs-charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 16px;
}

.gs-chart-card {
    padding: 16px;
    height: 300px;
}

.gs-chart-card canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ── Sensitivity Heading Row ──────────────────────────────────────────── */
.gs-sens-heading-row {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.gs-sens-mag-group {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.gs-sens-mag-label {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-right: 4px;
    white-space: nowrap;
}

.gs-sens-mag-btn {
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.gs-sens-mag-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.gs-sens-mag-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ── Sensitivity Wrapper Layout ──────────────────────────────────────── */
.gs-sens-wrapper {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.gs-sens-intro {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    background: var(--card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
    border-radius: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.gs-sens-intro-icon {
    font-size: 20px;
    flex-shrink: 0;
    margin-top: 1px;
}

/* ── Tornado Chart Card ───────────────────────────────────────────────── */
.gs-sens-chart-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 16px 8px;
}

.gs-sens-chart-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    text-align: center;
}

.gs-sens-chart-subtitle {
    display: block;
    font-size: 11px;
    font-weight: 400;
    color: var(--text-tertiary);
    margin-top: 2px;
}

/* ── Sensitivity Table Card ──────────────────────────────────────────── */
.gs-sens-table-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.gs-sens-table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--sidebar);
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.gs-sens-table-legend {
    font-size: 12px;
    font-weight: 400;
    color: var(--text-tertiary);
}

.gs-legend-dot {
    font-size: 14px;
}

.gs-legend-dot.favorable { color: #22c55e; }
.gs-legend-dot.adverse   { color: #ef4444; }

.gs-sens-table-scroll {
    overflow-x: auto;
}

/* ── Sensitivity Table ────────────────────────────────────────────────── */
.gs-sens-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    min-width: 520px;
}

.gs-sens-table th {
    background: var(--accent);
    color: #fff;
    padding: 10px 14px;
    text-align: center;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.gs-sens-table th:first-child {
    text-align: left;
}

.gs-th-sub {
    display: block;
    font-size: 9px;
    font-weight: 400;
    opacity: 0.8;
    text-transform: none;
    letter-spacing: 0;
}

.gs-sens-table td {
    padding: 9px 14px;
    border-bottom: 1px solid var(--border);
    text-align: center;
    color: var(--text-primary);
    font-size: 13px;
    vertical-align: middle;
}

.gs-sens-table td:first-child {
    text-align: left;
}

.gs-sens-table tbody tr:last-child td {
    border-bottom: none;
}

.gs-sens-table tbody tr:hover {
    background: rgba(14, 116, 144, 0.04);
}

/* Variable cell */
.gs-sens-var {
    min-width: 130px;
}

.gs-sens-range {
    display: block;
    font-size: 10px;
    color: var(--text-tertiary);
    margin-top: 2px;
    font-weight: 400;
}

/* Value cells */
.gs-sens-base {
    font-weight: 700;
    color: var(--accent);
}

.gs-sens-favorable {
    color: #16a34a;
    font-weight: 600;
}

.gs-sens-adverse {
    color: #dc2626;
    font-weight: 600;
}

.gs-pct-badge {
    display: block;
    font-size: 10px;
    font-weight: 400;
    color: var(--text-tertiary);
    margin-top: 2px;
}

/* Impact column */
.gs-sens-impact-cell {
    white-space: nowrap;
    min-width: 80px;
}

.gs-impact-dots {
    display: block;
    letter-spacing: 2px;
    font-size: 13px;
}

.gs-impact-critical { color: #dc2626; }
.gs-impact-high     { color: #f97316; }
.gs-impact-med      { color: #eab308; }
.gs-impact-low      { color: #22c55e; }

.gs-pct-range {
    display: block;
    font-size: 10px;
    color: var(--text-tertiary);
    margin-top: 2px;
}

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .mode-toggle {
        gap: 1px;
        padding: 2px;
    }

    .mode-btn {
        padding: 5px 10px;
        font-size: 11px;
    }

    .gs-anchor-grid {
        grid-template-columns: 1fr;
    }

    .gs-mode-buttons {
        grid-template-columns: repeat(2, 1fr);
    }

    .gs-sliders-grid {
        grid-template-columns: 1fr;
    }

    .gs-solution-value {
        font-size: 28px;
    }

    /* KPI rows stack on tablet */
    .gs-kpi-row-half,
    .gs-kpi-row-third {
        grid-template-columns: 1fr;
    }

    .gs-kpi-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .gs-kpi-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .gs-charts-grid {
        grid-template-columns: 1fr;
    }

    .gs-sip-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .gs-extra-params {
        grid-template-columns: 1fr;
    }

    .header-actions {
        gap: 6px;
    }
}

@media (max-width: 480px) {
    .gs-mode-buttons {
        grid-template-columns: 1fr;
    }

    .gs-kpi-cols-3,
    .gs-kpi-cols-4 {
        grid-template-columns: 1fr;
    }

    .gs-kpi-item-value {
        font-size: 16px;
    }
}