:root {
    --bg-main: #f8fafc;
    --bg-surface: #ffffff;
    --bg-zebra: #f1f5f9;
    --border-color: #e2e8f0;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --accent: #3b82f6;
    --card-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.07), 0 1px 2px -1px rgb(0 0 0 / 0.07);
    --pill-bg: #ffffff;
    --pill-border: #cbd5e1;
    --pill-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

[data-bs-theme="dark"] {
    --bg-main: #0b1120;
    --bg-surface: #131d33;
    --bg-zebra: #18243e;
    --border-color: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #60a5fa;
    --accent: #60a5fa;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --pill-bg: #131d33;
    --pill-border: #334155;
    --pill-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

body {
    background-color: var(--bg-main) !important;
    color: var(--text-main) !important;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 13.5px;
    letter-spacing: -0.01em;
    padding-bottom: 95px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* B2B-Style Navbar */
.b2b-header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1020;
}

.b2b-logo-badge {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    font-weight: 800;
    font-size: 12px;
    padding: 3px 8px;
    border-radius: 6px;
    letter-spacing: 0.05em;
}

/* Energy / Charges Badge */
.energy-pill-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-zebra);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.energy-pill-btn:hover {
    border-color: #f59e0b;
    background: rgba(245, 158, 11, 0.1);
}

.energy-bolt-icon {
    color: #f59e0b;
    font-size: 13px;
}

.theme-toggle-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-zebra);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
    color: var(--text-main);
}

/* B2B Stage & Canvas */
.b2b-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    transition: all 0.2s ease;
}

.b2b-stage-container {
    position: relative;
    width: 100%;
    min-height: 440px;
    background: var(--bg-zebra);
    border-radius: 10px;
    overflow: hidden;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.b2b-stage-img-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.b2b-stage-img-layer img {
    max-width: 100%;
    max-height: 520px;
    object-fit: contain;
    display: block;
}

.b2b-stage-after-wrap {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    overflow: hidden;
    z-index: 10;
}

.b2b-stage-after-wrap img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    max-height: 520px;
    object-fit: contain;
}

/* Divider Handle */
.b2b-divider-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: #ffffff;
    box-shadow: 0 0 6px rgba(0,0,0,0.4);
    z-index: 20;
    cursor: ew-resize;
    transform: translateX(-50%);
}

.b2b-divider-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    background: #ffffff;
    border: 2px solid #2563eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
    color: #2563eb;
    font-size: 11px;
}

/* Dropzone */
.b2b-dropzone {
    border: 2px dashed var(--border-color);
    background: var(--bg-zebra);
    border-radius: 10px;
    padding: 35px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.b2b-dropzone:hover, .b2b-dropzone.dragover {
    border-color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

/* Compact Forms & Buttons */
.form-label-compact {
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.form-control-compact, .form-select-compact {
    background-color: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-main) !important;
    font-size: 13px !important;
    padding: 6px 10px !important;
    border-radius: 7px !important;
}

.form-control-compact:focus, .form-select-compact:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15) !important;
}

.btn-b2b {
    font-size: 12.5px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 7px;
    transition: all 0.15s ease;
}

/* Fixed Bottom Pill Action Button */
.b2b-fixed-bottom-bar {
    position: fixed;
    bottom: 20px;
    left: 0;
    right: 0;
    z-index: 1030;
    pointer-events: none;
    display: flex;
    justify-content: center;
}

.b2b-action-pill {
    pointer-events: auto;
    background: var(--pill-bg);
    border: 1px solid var(--pill-border);
    border-radius: 50px;
    padding: 6px 8px;
    box-shadow: var(--pill-shadow);
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-pill-submit {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    border: none;
    padding: 9px 24px;
    border-radius: 40px;
    font-size: 13.5px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    transition: all 0.2s ease;
}

.btn-pill-submit:hover:not(:disabled) {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
}

.btn-pill-submit:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    filter: grayscale(0.6);
}

/* 35 Models Catalog Grid */
.b2b-catalog-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.2s ease;
}

.b2b-catalog-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--card-shadow);
}

.b2b-catalog-thumb-wrap {
    height: 140px;
    overflow: hidden;
    position: relative;
    background: var(--bg-zebra);
}

.b2b-catalog-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.b2b-badge-cost {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 6px;
}

.b2b-badge-runs {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background: rgba(15, 23, 42, 0.75);
    color: #ffffff;
    font-size: 10.5px;
    padding: 2px 7px;
    border-radius: 5px;
}

/* Modals */
.modal-content-b2b {
    background-color: var(--bg-surface);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.modal-header-b2b {
    border-bottom: 1px solid var(--border-color);
    padding: 12px 18px;
}

.modal-footer-b2b {
    border-top: 1px solid var(--border-color);
    padding: 10px 18px;
}