/* Custom fonts and smooth effects */
    @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;700;900&display=swap');

    body {
        font-family: 'Inter', sans-serif;
        touch-action: pan-y;
        -webkit-tap-highlight-color: transparent;
    }

    /* Smooth transitions for all theme changes */
    .transition-theme {
        transition: background-color 0.5s ease, border-color 0.5s ease, color 0.5s ease, box-shadow 0.5s ease;
    }

    /* Smooth transition for tuner logic (pointer, glows) */
    .transition-tuner {
        transition: transform 0.08s ease-out, color 0.3s ease, background-color 0.3s ease, filter 0.3s ease, opacity 0.3s ease, text-shadow 0.3s ease, box-shadow 0.3s ease;
    }

    .transition-glow {
        transition: all 0.5s ease-in-out;
    }

    ::-webkit-scrollbar {
        width: 6px;
    }

    ::-webkit-scrollbar-track {
        background: transparent;
    }

    ::-webkit-scrollbar-thumb {
        background: rgba(156, 163, 175, 0.3);
        border-radius: 10px;
    }

    .dark ::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.1);
    }

    ::-webkit-scrollbar-thumb:hover {
        background: rgba(156, 163, 175, 0.5);
    }

    .dark ::-webkit-scrollbar-thumb:hover {
        background: rgba(255, 255, 255, 0.2);
    }

    /* Glassmorphism for the gauge */
    .glass-panel {
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

/* ================= STANDARDIZED SPAC2 BRAND HEADER ================= */
.header-brand-group {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.btn-back {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.04);
    border: 1.5px solid rgba(0, 0, 0, 0.22);
    color: #0f172a;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
    flex-shrink: 0;
    font-size: 18px;
    padding: 0;
    box-sizing: border-box;
}

.btn-back i,
.btn-back svg {
    color: inherit;
    font-size: 18px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-back:hover {
    background: rgba(0, 0, 0, 0.08);
    color: #000000;
    transform: translateX(-2px);
    border-color: rgba(0, 0, 0, 0.45);
}

.btn-back:active {
    transform: scale(0.92);
    background: rgba(0, 0, 0, 0.12);
    border-color: rgba(0, 0, 0, 0.55);
    opacity: 0.85;
}

.dark .btn-back {
    background: rgba(255, 255, 255, 0.08);
    border: 1.5px solid rgba(255, 255, 255, 0.22);
    color: #ffffff;
}

.dark .btn-back:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.45);
}

.dark .btn-back:active {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.55);
}

.brand-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.15s ease;
    flex-shrink: 0;
}

.brand-link:hover {
    opacity: 0.92;
}

.brand-logo-card {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.06);
    flex-shrink: 0;
    padding: 3.5px;
    box-sizing: border-box;
    transition: transform 0.2s ease;
}

.brand-link:hover .brand-logo-card {
    transform: scale(1.04);
}

.brand-logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 6px;
    display: block;
}

.brand-text {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    line-height: 1;
    white-space: nowrap;
}

.brand-name {
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    font-weight: 800;
    font-size: 19px;
    color: #0f172a;
    letter-spacing: -0.025em;
    line-height: 1;
}

.dark .brand-name {
    color: #ffffff;
}

.brand-divider {
    font-size: 14px;
    font-weight: 300;
    color: #94a3b8;
    opacity: 0.7;
    user-select: none;
}

.dark .brand-divider {
    color: rgba(255, 255, 255, 0.4);
}

.brand-app {
    font-size: 14px;
    font-weight: 600;
    color: #475569;
    letter-spacing: -0.01em;
    line-height: 1;
}

.dark .brand-app {
    color: #cbd5e1;
}

@media (max-width: 640px) {
    .btn-back {
        width: 34px;
        height: 34px;
        border-radius: 10px;
        font-size: 16px;
    }

    .brand-logo-card {
        width: 32px;
        height: 32px;
        border-radius: 8px;
        padding: 3px;
    }

    .brand-name {
        font-size: 17px;
    }

    .brand-divider {
        font-size: 13px;
    }

    .brand-app {
        font-size: 13px;
    }
}