/* ============================================
   TSB App Brand Scene
   Shared brand-aligned background and shell layer
   ============================================ */

html.dark {
    background-color: #0b0b0c;
}

html.dark body.tsb-brand-scene:not(.embed-mode) {
    background: #0b0b0c;
    position: relative;
    overflow-x: hidden;
}

/* Grid pattern overlay — unified across all brand pages */
html.dark body.tsb-brand-scene:not(.embed-mode)::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
    z-index: 0;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 20%, transparent 70%);
    opacity: 0.32;
}

.tsb-brand-surface {
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

html.dark body.tsb-brand-scene:not(.embed-mode) .tsb-brand-surface {
    border-color: rgba(255, 255, 255, 0.06);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.018) 0%, rgba(255, 255, 255, 0.008) 12%, rgba(255, 255, 255, 0) 28%),
        linear-gradient(180deg, rgba(21, 24, 24, 0.9) 0%, rgba(14, 15, 15, 0.96) 100%);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.02),
        0 24px 60px rgba(0, 0, 0, 0.28);
}

/* ============================================
   Shared Demo Banner
   Canonical demo-mode chrome across app pages
   ============================================ */

.demo-banner {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: linear-gradient(90deg, rgba(77, 171, 154, 0.14), rgba(77, 171, 154, 0.08));
    border-bottom: 1px solid rgba(77, 171, 154, 0.3);
    backdrop-filter: blur(10px);
}

.demo-banner-content {
    max-width: 1800px;
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.demo-banner-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(77, 171, 154, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4DAB9A;
}

.demo-banner-text {
    color: #f0f0f2;
    font-size: 14px;
}

.demo-banner-text strong {
    color: #4DAB9A;
}

.demo-highlight {
    color: #4DAB9A;
    font-weight: 600;
}

.demo-banner-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #4DAB9A, #5BC4B0);
    color: #0a0a0a;
    font-weight: 600;
    font-size: 13px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s;
}

.demo-banner-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(77, 171, 154, 0.4);
}

@media (max-width: 640px) {
    .demo-banner-content {
        padding: 10px 14px;
        gap: 10px;
        justify-content: flex-start;
    }

    .demo-banner-icon {
        display: none;
    }

    .demo-banner-text {
        flex: 1 1 100%;
        font-size: 13px;
        line-height: 1.45;
    }

    .demo-banner-cta {
        min-height: 38px;
        padding: 0 14px;
        font-size: 12px;
        margin-left: 0;
    }
}

/* ============================================
   Shared Demo Float CTA
   Canonical floating CTA across demo pages
   ============================================ */

.demo-float-cta {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 999;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border: 1px solid rgba(77, 171, 154, 0.3);
    border-radius: 12px;
    background: rgba(10, 10, 10, 0.95);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.demo-float-cta.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.demo-float-text {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #f0f0f2;
    font-size: 13px;
    font-weight: 500;
}

.demo-float-text i {
    color: #4DAB9A;
}

.demo-float-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 0 16px;
    border-radius: 8px;
    background: linear-gradient(135deg, #4DAB9A, #5BC4B0);
    color: #0a0a0a;
    font-size: 12px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.demo-float-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(77, 171, 154, 0.4);
}

@media (max-width: 640px) {
    .demo-float-cta {
        display: none;
    }
}