/* ============================================================
   Microsoft Sentinel — IngestIQ Pricing Calculator
   whennotif• edition — style.css v2.0
   ============================================================ */

/* ============================================================
   whennotif• CORPORATE IDENTITY VARIABLES
   ============================================================ */
:root {
    --primary-color: #F0F0F0;
    --primary-light: #00B4D8;
    --primary-dark: #0A0A0F;
    --secondary-color: #00B4D8;
    --secondary-dark: #0899AF;
    --accent-color: #2DC653;
    --accent-light: #4CD96A;
    --background-color: #0A0A0F;
    --surface-color: #12121A;
    --text-color: #F0F0F0;
    --text-muted: #888;
    --card-background: #12121A;
    --border-color: #1A1A2E;
    --error-color: #E63946;
    --warning-color: #FFB703;
    --info-color: #00B4D8;
    --success-color: #2DC653;
    --input-background: #0A0A0F;
    --input-border: #1A1A2E;
    --toggle-bg: #1A1A2E;

    /* Category Colors */
    --cat-security-alerts: #EF476F;
    --cat-signin: #FF9F1C;
    --cat-controlplane: #00B2CA;
    --cat-mgmt-devops: #419D78;
    --cat-nac-switch: #8250df;
    --cat-collaboration: #2196F3;
    --cat-dns-dhcp: #0969da;
    --cat-proxy: #bc4c00;
    --cat-firewall: #d1242f;
}

/* ============================================================
   DARK MODE — whennotif• is dark-first, override light fallbacks
   ============================================================ */
[data-theme="dark"] {
    --primary-color: #F0F0F0;
    --primary-dark: #0A0A0F;
    --background-color: #0A0A0F;
    --surface-color: #12121A;
    --text-color: #F0F0F0;
    --text-muted: #888;
    --card-background: #12121A;
    --border-color: #1A1A2E;
    --input-background: #0A0A0F;
    --input-border: #1A1A2E;
    --toggle-bg: #1A1A2E;
}

[data-theme="dark"] .hero {
    background: linear-gradient(135deg, #0A0A0F 0%, #1A0A0A 50%, #0A1A2A 100%);
}

[data-theme="dark"] .factors-toggle:hover {
    background: #334155;
}

[data-theme="dark"] .modal-box {
    background: #1E293B;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
}

[data-theme="dark"] .modal-box h3 {
    color: #E2E8F0;
}

[data-theme="dark"] .pricing-info-bar {
    background: linear-gradient(135deg, #1E293B 0%, #1E3A5F 100%);
    border-color: #334155;
}

[data-theme="dark"] .free-source-card {
    background: #1E293B;
    border-color: #334155;
}

[data-theme="dark"] .free-source-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 4px 14px rgba(65, 157, 120, 0.2);
}

[data-theme="dark"] .stat-card.highlight {
    background: linear-gradient(135deg, #1A4D3A, #0E4D5C);
}

[data-theme="dark"] .cost-stat-card.savings {
    background: linear-gradient(135deg, #1A2E23 0%, #1A3328 100%);
    border-color: #334155;
}

[data-theme="dark"] .cost-stat-card.gross {
    border-color: #334155;
}

[data-theme="dark"] .cost-stat-card.net {
    background: linear-gradient(135deg, #1A4D3A, #0E4D5C);
}

[data-theme="dark"] .radio-option label {
    background: var(--card-background);
    border-color: var(--border-color);
    color: var(--text-color);
}

[data-theme="dark"] .radio-option input[type="radio"]:checked + label {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

[data-theme="dark"] .bar-track,
[data-theme="dark"] .comparison-bar-track {
    background: #334155;
}

[data-theme="dark"] .aux-source-card {
    background: #1E293B;
    border-color: #334155;
}

[data-theme="dark"] .aux-source-card.active {
    background: linear-gradient(135deg, #1E293B, #1E2A4A);
    border-color: #4F46E5;
}

[data-theme="dark"] .aux-source-card .aux-ratio-slider {
    background: #475569;
}

[data-theme="dark"] .result-row {
    background: var(--card-background);
}

[data-theme="dark"] .result-row.header {
    background: #334155;
    color: #F1F5F9;
}

[data-theme="dark"] .result-row.total-row {
    background: var(--surface-color);
}

/* Commercial table header (Step 6) */
[data-theme="dark"] #commercialTable th {
    color: #F1F5F9 !important;
    background: #334155 !important;
    border-color: #475569 !important;
}

[data-theme="dark"] #commercialTable td {
    border-color: #334155 !important;
}

/* ROI Analysis KPI cards + recommendation boxes */
[data-theme="dark"] #mdcRoiSection > div > div[style*="background:white"] {
    background: var(--surface-color) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] #mdcRecommendation,
[data-theme="dark"] #commitmentTierRecommendation,
[data-theme="dark"] #prePurchaseRecommendation {
    background: var(--surface-color) !important;
    border-color: var(--border-color) !important;
}

/* Select dropdowns with inline background:white */
[data-theme="dark"] select[style*="background:white"] {
    background: var(--input-background) !important;
    color: var(--text-color) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .tooltip-icon {
    background: #475569;
    color: #94A3B8;
}

[data-theme="dark"] .tooltip-bubble {
    background: #334155;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .input-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394A3B8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
}

[data-theme="dark"] .footer {
    border-color: #334155;
}

[data-theme="dark"] .savings-pct-badge {
    background: linear-gradient(135deg, #1A3328, #1A2E23);
    border-color: #419D78;
}

[data-theme="dark"] .checkbox-group {
    background: var(--input-background);
    border-color: var(--input-border);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
    background: linear-gradient(135deg,
        #0A0A0F 0%,
        #1A0A0A 50%,
        #0A1A2A 100%
    );
    color: #F0F0F0;
    padding: 40px 40px 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.hero-text { flex: 1; }

.hero-actions {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.88em;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-white {
    background: rgba(255,255,255,0.15);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(8px);
}

.btn-white:hover {
    background: rgba(255,255,255,0.25);
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85em;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.hero h1 {
    font-size: 2.4em;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.hero p {
    font-size: 1.1em;
    opacity: 0.9;
    max-width: 600px;
}

/* ============================================================
   MAIN CONTAINER
   ============================================================ */
.main-container {
    max-width: 1200px;
    margin: -40px auto 40px;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

/* ============================================================
   CARDS & SECTIONS
   ============================================================ */
.card {
    background: var(--card-background);
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 20px 28px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.card-header i {
    font-size: 1.3em;
    color: var(--accent-color);
}

.card-header h2 {
    font-size: 1.2em;
    font-weight: 600;
    color: var(--primary-color);
}

.card-header .subtitle {
    font-size: 0.85em;
    color: var(--text-muted);
    margin-left: auto;
}

.card-body {
    padding: 28px;
}

/* ============================================================
   INPUT: SECTION PANELS with icons
   ============================================================ */
.input-sections {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.input-section-panel {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.input-section-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--card-background);
}

.input-section-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1em;
    color: white;
    flex-shrink: 0;
}

.input-section-icon.identity { background: linear-gradient(135deg, #2D3047, #419D78); }
.input-section-icon.apps     { background: linear-gradient(135deg, #00B2CA, #419D78); }
.input-section-icon.network  { background: linear-gradient(135deg, #8250df, #00B2CA); }
.input-section-icon.license  { background: linear-gradient(135deg, #FF9F1C, #EF476F); }

.input-section-header h3 {
    font-size: 1em;
    font-weight: 700;
    color: var(--primary-color);
}

.input-section-header p {
    font-size: 0.8em;
    color: var(--text-muted);
    margin-top: 1px;
}

.input-section-body {
    padding: 20px 24px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

/* ============================================================
   INPUT FIELDS
   ============================================================ */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.input-group label {
    font-size: 0.82em;
    font-weight: 600;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 6px;
}

.input-group label .unit {
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.9em;
}

.input-group input[type="number"] {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--input-border);
    border-radius: 8px;
    font-size: 1em;
    font-family: inherit;
    color: var(--text-color);
    background: var(--input-background);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group input[type="number"]:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 178, 202, 0.15);
}

.input-group input[type="number"]::-webkit-inner-spin-button {
    opacity: 1;
}

/* Checkbox toggle style */
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--input-background);
    border-radius: 8px;
    border: 1.5px solid var(--input-border);
    cursor: pointer;
    transition: border-color 0.2s;
    min-height: 44px;
}

.checkbox-group:hover {
    border-color: var(--secondary-color);
}

.checkbox-group input[type="checkbox"] {
    display: none;
}

/* Checkbox toggle style (Step 1 — inside .checkbox-group) */
.checkbox-group .toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--toggle-bg);
    border-radius: 12px;
    transition: background 0.3s;
    flex-shrink: 0;
    display: block;
}

.checkbox-group .toggle-switch::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.checkbox-group input[type="checkbox"]:checked + .toggle-switch {
    background: var(--accent-color);
}

.checkbox-group input[type="checkbox"]:checked + .toggle-switch::after {
    transform: translateX(20px);
}

.checkbox-label {
    font-size: 0.82em;
    font-weight: 500;
    color: var(--text-muted);
}

/* Dropdown */
.input-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--input-border);
    border-radius: 8px;
    font-size: 1em;
    font-family: inherit;
    color: var(--text-color);
    background-color: var(--input-background);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

.input-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 178, 202, 0.15);
}

/* Cluster radio */
.radio-group {
    display: flex;
    gap: 8px;
}

.radio-option {
    flex: 1;
    position: relative;
}

.radio-option input[type="radio"] {
    display: none;
}

.radio-option label {
    display: block;
    padding: 10px 14px;
    background: var(--card-background);
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    font-size: 0.88em;
    font-weight: 600;
    transition: all 0.2s;
}

.radio-option input[type="radio"]:checked + label {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Full-width within grid */
.input-full-width {
    grid-column: 1 / -1;
}

/* Firewall sub-grid */
.fw-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

/* ============================================================
   RESULTS: CATEGORY BREAKDOWN TABLE
   ============================================================ */
.results-grid {
    display: grid;
    gap: 2px;
    background: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.result-row {
    display: grid;
    grid-template-columns: minmax(200px, 2fr) repeat(4, 1fr);
    background: var(--card-background);
    align-items: center;
}

.result-row.header {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    font-size: 0.85em;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-row.total-row {
    background: var(--surface-color);
    font-weight: 700;
}

.result-cell {
    padding: 14px 18px;
    font-size: 0.92em;
}

.result-cell.numeric {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.result-cell.category-name {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
}

.category-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ============================================================
   TOOLTIP — Smart Positioning
   ============================================================ */
.tooltip-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: var(--border-color);
    color: var(--text-muted);
    border-radius: 50%;
    font-size: 0.7em;
    font-weight: 700;
    cursor: help;
    position: relative;
    flex-shrink: 0;
}

.tooltip-bubble {
    display: none;
    position: fixed;
    background: var(--primary-color);
    color: white;
    padding: 14px 18px;
    border-radius: 10px;
    font-size: 12.5px;
    font-weight: 400;
    line-height: 1.55;
    width: 320px;
    max-width: 90vw;
    z-index: 9999;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
    pointer-events: none;
}

.tooltip-bubble.visible {
    display: block;
}

/* ============================================================
   SUMMARY STAT CARDS
   ============================================================ */
.summary-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--surface-color);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.stat-card .stat-value {
    font-size: 2em;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.1;
}

.stat-card .stat-label {
    font-size: 0.82em;
    color: var(--text-muted);
    margin-top: 4px;
    font-weight: 500;
}

.stat-card.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border-color: transparent;
}

.stat-card.highlight .stat-value {
    color: white;
}

.stat-card.highlight .stat-label {
    color: rgba(255, 255, 255, 0.85);
}

/* ============================================================
   FORMULA FACTORS — Password-protected
   ============================================================ */
.factors-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--surface-color);
    border-top: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 0.88em;
    font-weight: 600;
    color: var(--text-muted);
    transition: background 0.2s;
    user-select: none;
}

.factors-toggle:hover {
    background: #EFF2F6;
}

.factors-toggle i {
    transition: transform 0.3s;
}

.factors-toggle.open i:first-child {
    transform: rotate(180deg);
}

.factors-toggle .lock-icon {
    margin-left: auto;
    font-size: 0.9em;
}

.factors-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.factors-panel.open {
    max-height: 3000px;
}

.factors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    padding: 24px 28px;
    background: var(--surface-color);
}

.factor-item {
    display: grid;
    grid-template-columns: 1fr 100px;
    gap: 8px;
    align-items: center;
}

.factor-item label {
    font-size: 0.82em;
    color: var(--text-color);
}

.factor-item input {
    padding: 6px 10px;
    border: 1.5px solid var(--input-border);
    border-radius: 6px;
    font-size: 0.88em;
    text-align: right;
    font-family: inherit;
    background: var(--input-background);
    color: var(--text-color);
}

.factor-item input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(0, 178, 202, 0.15);
}

.factor-category-title {
    grid-column: 1 / -1;
    font-size: 0.78em;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-color);
    padding-bottom: 2px;
    border-bottom: 1px solid var(--border-color);
}

/* ============================================================
   PASSWORD MODAL
   ============================================================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.visible {
    display: flex;
}

.modal-box {
    background: var(--card-background);
    border-radius: 16px;
    padding: 36px;
    width: 400px;
    max-width: 90vw;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25);
    text-align: center;
}

.modal-box .modal-icon {
    font-size: 2.5em;
    color: var(--accent-color);
    margin-bottom: 16px;
}

.modal-box h3 {
    font-size: 1.2em;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.modal-box p {
    font-size: 0.88em;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.modal-box input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--input-border);
    border-radius: 8px;
    font-size: 1em;
    font-family: inherit;
    text-align: center;
    letter-spacing: 2px;
    margin-bottom: 8px;
    background: var(--input-background);
    color: var(--text-color);
}

.modal-box input[type="password"]:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 178, 202, 0.15);
}

.modal-error {
    color: var(--error-color);
    font-size: 0.82em;
    font-weight: 600;
    min-height: 20px;
    margin-bottom: 12px;
}

.modal-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    font-size: 0.92em;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s;
}

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

.btn-secondary {
    background: var(--surface-color);
    color: var(--text-color);
    padding: 10px 24px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.92em;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-secondary:hover { background: var(--border-color); }

/* ============================================================
   BAR CHART (CSS based)
   ============================================================ */
.bar-chart {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 16px;
}

.bar-row {
    display: grid;
    grid-template-columns: 180px 1fr 80px;
    gap: 12px;
    align-items: center;
}

.bar-label {
    font-size: 0.82em;
    font-weight: 600;
    text-align: right;
    color: var(--text-color);
}

.bar-track {
    height: 28px;
    background: var(--surface-color);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.bar-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.6s ease;
    min-width: 2px;
}

.bar-value {
    font-size: 0.82em;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--text-color);
}

/* ============================================================
   EXPORT BUTTON
   ============================================================ */
.export-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 0.92em;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: transform 0.15s, box-shadow 0.15s;
}

.export-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(45, 48, 71, 0.3);
}

.export-btn:active { transform: translateY(0); }

.export-btn.loading {
    opacity: 0.7;
    pointer-events: none;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    text-align: center;
    padding: 30px;
    color: var(--text-muted);
    font-size: 0.82em;
    border-top: 1px solid var(--border-color);
}

.footer a {
    color: var(--accent-color);
    text-decoration: none;
}

/* ============================================================
   DARK MODE TOGGLE BUTTON
   ============================================================ */
.theme-toggle {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: var(--card-background);
    color: var(--text-color);
    font-size: 1.2em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    z-index: 9999;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(0,0,0,0.2);
}

[data-theme="dark"] .theme-toggle {
    box-shadow: 0 4px 16px rgba(0,0,0,0.4);
    border-color: #475569;
}

/* ============================================================
   PDF-ONLY ELEMENTS (hidden in browser)
   ============================================================ */
.pdf-only { display: none; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .hero {
        padding: 30px 20px 60px;
    }

    .hero h1 {
        font-size: 1.6em;
    }

    .hero-content {
        flex-direction: column;
    }

    .input-section-body {
        grid-template-columns: 1fr;
    }

    .result-row {
        grid-template-columns: minmax(140px, 2fr) repeat(4, 1fr);
        font-size: 0.85em;
    }

    .result-cell {
        padding: 10px 12px;
    }

    .bar-row {
        grid-template-columns: 100px 1fr 60px;
    }

    .summary-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeInUp 0.5s ease forwards;
}

.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.2s; }
.card:nth-child(4) { animation-delay: 0.3s; }
.card:nth-child(5) { animation-delay: 0.4s; }
.card:nth-child(6) { animation-delay: 0.5s; }
.card:nth-child(7) { animation-delay: 0.6s; }

/* ============================================================
   AUXILIARY LOGS SOURCE CARDS
   ============================================================ */
.aux-sources-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
}

.aux-source-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    transition: all 0.25s ease;
}

.aux-source-card.active {
    background: linear-gradient(135deg, #EEF2FF, #E0E7FF);
    border-color: #C7D2FE;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.1);
}

.aux-source-card .aux-source-toggle {
    flex-shrink: 0;
}

.aux-source-card .aux-source-info {
    flex: 1;
    min-width: 0;
}

.aux-source-card .aux-source-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-color);
}

.aux-source-card .aux-source-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.aux-source-card .aux-source-volume {
    font-size: 0.82rem;
    font-weight: 600;
    color: #6366F1;
    margin-top: 4px;
}

.aux-source-card .aux-source-ratio {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    min-width: 220px;
}

.aux-source-card .aux-ratio-label {
    font-size: 0.82rem;
    font-weight: 700;
    color: #6366F1;
    min-width: 42px;
    text-align: center;
}

.aux-source-card .aux-ratio-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 120px;
    height: 6px;
    border-radius: 3px;
    background: #E2E8F0;
    outline: none;
    transition: background 0.2s;
}

.aux-source-card .aux-ratio-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366F1, #818CF8);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(99, 102, 241, 0.3);
}

.aux-source-card .aux-ratio-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366F1, #818CF8);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 6px rgba(99, 102, 241, 0.3);
}

.aux-source-card .aux-ratio-detail {
    font-size: 0.72rem;
    color: var(--text-muted);
    min-width: 100px;
}

@media (max-width: 768px) {
    .aux-source-card {
        flex-wrap: wrap;
    }
    .aux-source-card .aux-source-ratio {
        min-width: 100%;
        margin-top: 8px;
    }
}

/* Toggle Switch — label-based (Step 4/5/6 toggles) */
label.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
    flex-shrink: 0;
}
label.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}
.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--toggle-bg);
    border-radius: 26px;
    transition: all 0.3s ease;
}
.toggle-slider:before {
    content: "";
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
label.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(135deg, #0078D4, #00BCF2);
}
label.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(22px);
}

/* ============================================================
   STEP 2 — COST CALCULATION & FREE DATA SOURCES
   ============================================================ */

/* Pricing header info bar */
.pricing-info-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #F8FAFC 0%, #EFF6FF 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 20px;
    margin-bottom: 24px;
    font-size: 0.92em;
}
.pricing-info-bar .pricing-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.15em;
    flex-shrink: 0;
}
.pricing-info-bar .pricing-text {
    flex: 1;
    color: var(--text-muted);
    line-height: 1.5;
}
.pricing-info-bar .pricing-text strong {
    color: var(--text-color);
}

/* Cost Summary — KPI row */
.cost-summary-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}
.cost-stat-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}
.cost-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}
.cost-stat-card.gross {
    border-left: 4px solid var(--error-color);
}
.cost-stat-card.savings {
    border-left: 4px solid var(--accent-color);
    background: linear-gradient(135deg, #F0FDF4 0%, #ECFDF5 100%);
}
.cost-stat-card.net {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
}
.cost-stat-card .cost-stat-value {
    font-size: 1.8em;
    font-weight: 700;
    margin-bottom: 4px;
    line-height: 1.2;
}
.cost-stat-card.net .cost-stat-value {
    color: white;
}
.cost-stat-card .cost-stat-label {
    font-size: 0.85em;
    color: var(--text-muted);
}
.cost-stat-card.net .cost-stat-label {
    color: rgba(255,255,255,0.8);
}
.cost-stat-card .cost-stat-sub {
    font-size: 0.78em;
    color: var(--text-muted);
    margin-top: 6px;
    opacity: 0.7;
}
.cost-stat-card.net .cost-stat-sub {
    color: rgba(255,255,255,0.6);
}

/* Free Data Sources Section */
.free-sources-section {
    margin-bottom: 28px;
}
.free-sources-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--accent-color);
}
.free-sources-header h3 {
    font-size: 1.05em;
    font-weight: 700;
    color: var(--text-color);
}
.free-sources-header .free-badge {
    background: var(--accent-color);
    color: white;
    font-size: 0.72em;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.free-sources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}
.free-source-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    transition: all 0.3s ease;
}
.free-source-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 4px 14px rgba(65, 157, 120, 0.12);
}
.free-source-card .free-source-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1em;
    color: white;
}
.free-source-card .free-source-info {
    flex: 1;
    min-width: 0;
}
.free-source-card .free-source-name {
    font-weight: 600;
    font-size: 0.92em;
    color: var(--text-color);
    margin-bottom: 2px;
}
.free-source-card .free-source-table {
    font-size: 0.78em;
    color: var(--text-muted);
    font-family: 'Courier New', monospace;
    margin-bottom: 4px;
}
.free-source-card .free-source-savings {
    font-size: 0.85em;
    font-weight: 700;
    color: var(--accent-color);
}
.free-source-card .free-source-savings .eur {
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 6px;
}

/* Savings Comparison Bar */
.savings-comparison {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 22px 24px;
    margin-bottom: 24px;
}
.savings-comparison h4 {
    font-size: 0.95em;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 16px;
}
.comparison-bar-container {
    margin-bottom: 14px;
}
.comparison-bar-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 0.85em;
}
.comparison-bar-label .bar-title {
    font-weight: 600;
    color: var(--text-color);
}
.comparison-bar-label .bar-amount {
    font-weight: 700;
    color: var(--text-color);
}
.comparison-bar-track {
    height: 28px;
    background: #f0f0f0;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}
.comparison-bar-fill {
    height: 100%;
    border-radius: 8px;
    transition: width 0.6s ease;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 10px;
    font-size: 0.75em;
    font-weight: 700;
    color: white;
    min-width: 40px;
}
.comparison-bar-fill.gross {
    background: linear-gradient(90deg, var(--error-color), #f47a98);
}
.comparison-bar-fill.net {
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
}
.comparison-bar-fill.free {
    background: repeating-linear-gradient(
        45deg,
        var(--accent-color),
        var(--accent-color) 6px,
        #5CBA97 6px,
        #5CBA97 12px
    );
}
.savings-pct-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #F0FDF4, #ECFDF5);
    border: 1px solid var(--accent-color);
    border-radius: 20px;
    padding: 6px 16px;
    font-size: 0.92em;
    font-weight: 700;
    color: var(--accent-color);
    margin-top: 8px;
}
.savings-pct-badge i {
    font-size: 0.9em;
}

/* Cost Table */
.cost-results-grid {
    margin-top: 20px;
}
.cost-results-grid .result-row {
    grid-template-columns: minmax(160px, 2fr) repeat(4, 1fr);
}
.cost-results-grid .result-row.header {
    grid-template-columns: minmax(160px, 2fr) repeat(4, 1fr);
}
.free-tag {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    font-size: 0.65em;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-left: 6px;
    vertical-align: middle;
}
.strikethrough {
    text-decoration: line-through;
    opacity: 0.5;
}

/* Responsive: Step 2 */
@media (max-width: 768px) {
    .cost-summary-stats {
        grid-template-columns: 1fr;
    }
    .free-sources-grid {
        grid-template-columns: 1fr;
    }
    .pricing-info-bar {
        flex-direction: column;
        text-align: center;
    }
    .cost-results-grid .result-row,
    .cost-results-grid .result-row.header {
        grid-template-columns: minmax(120px, 2fr) repeat(4, 1fr);
        font-size: 0.85em;
    }
}

/* ============================================================
   DARK MODE — Override inline backgrounds
   ============================================================ */
[data-theme="dark"] .card-body > div[style*="background:linear-gradient(135deg,#F8FAFC"],
[data-theme="dark"] .card-body > div[style*="background:linear-gradient(135deg,#FFFBEB"],
[data-theme="dark"] .card-body > div[style*="background:linear-gradient(135deg,#EEF2FF"],
[data-theme="dark"] .card-body > div[style*="background:linear-gradient(135deg,#F0FDF4"] {
    background: var(--surface-color) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] div[style*="background:linear-gradient(135deg,#F8FAFC,#EBF5FF)"],
[data-theme="dark"] div[style*="background:linear-gradient(135deg,#F8FAFC,#EEF2FF)"] {
    background: var(--surface-color) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .pricing-info-bar[style*="background:linear-gradient"] {
    background: var(--surface-color) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] div[style*="background:linear-gradient(135deg,#FFFBEB,#FEF3C7)"] {
    background: linear-gradient(135deg, #2A2318, #33291C) !important;
    border-color: #5C4A1E !important;
}

[data-theme="dark"] div[style*="background:linear-gradient(135deg,#EEF2FF,#E0E7FF)"] {
    background: linear-gradient(135deg, #1E2040, #1E2A4A) !important;
    border-color: #3730A3 !important;
}

[data-theme="dark"] div[style*="background:linear-gradient(135deg,#F0FDF4,#D1FAE5)"] {
    background: linear-gradient(135deg, #1A2E23, #1A3328) !important;
    border-color: #2D6A4F !important;
}

[data-theme="dark"] div[style*="background:linear-gradient(135deg,#EBF5FF,#DBEAFE)"] {
    background: linear-gradient(135deg, #1E293B, #1E3A5F) !important;
    border-color: #334155 !important;
}

[data-theme="dark"] div[id="mdcRoiSection"][style*="background:linear-gradient"] {
    background: var(--surface-color) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] #mdcRoiSection {
    background: var(--surface-color) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .savings-pct-badge[style*="background:linear-gradient"] {
    background: var(--surface-color) !important;
}

[data-theme="dark"] span[style*="background:#FEF3C7"],
[data-theme="dark"] span[style*="background:#E0E7FF"] {
    background: #33291C !important;
}

[data-theme="dark"] .comparison-bar-track {
    background: #334155 !important;
}

/* Step 6 — Commercial Cost Overview */
[data-theme="dark"] div[style*="background:white;border:2px solid #E2E8F0"] {
    background: var(--card-background) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] div[style*="background:linear-gradient(135deg,#F8FAFC,#E2E8F0)"] {
    background: var(--surface-color) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] tr[style*="background:#F8FAFC"] {
    background: var(--surface-color) !important;
}

[data-theme="dark"] th[style*="color:#2D3047"],
[data-theme="dark"] span[style*="color:#2D3047"],
[data-theme="dark"] div[style*="color:#2D3047"] {
    color: var(--text-color) !important;
}

/* Smooth transition for theme changes */
body, .card, .card-header, .card-body, .footer,
.input-section-panel, .input-section-header,
.stat-card, .cost-stat-card, .factor-item input,
.input-group input, .input-group select,
.checkbox-group, .modal-box, .tooltip-bubble,
.theme-toggle {
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}