/**
 * Modern Native Page Transitions & Progress Engine (Direct Debit System)
 * Powered by CSS View Transitions (Cross-Document) & Progressive Enhancement
 */

:root {
    --page-transition-bar-color: #35b398;
}

/* Linear-style Top Loading Progress Bar */
#page-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, #35b398, #083a60, #35b398);
    background-size: 200% 100%;
    z-index: 999999;
    pointer-events: none;
    transition: width 0.35s cubic-bezier(0.1, 0.8, 0.2, 1), opacity 0.25s ease;
    box-shadow: 0 0 12px rgba(53, 179, 152, 0.8);
    opacity: 0;
}

#page-progress-bar.is-loading {
    opacity: 1;
    animation: progressBarShimmer 1.5s infinite linear;
}

@keyframes progressBarShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Native Cross-Document View Transitions */
@media (prefers-reduced-motion: no-preference) {
    @view-transition {
        navigation: auto;
    }

    ::view-transition-old(root) {
        animation: 180ms cubic-bezier(0.4, 0, 1, 1) both dds-page-out;
    }

    ::view-transition-new(root) {
        animation: 260ms cubic-bezier(0, 0, 0.2, 1) both dds-page-in;
    }

    .floating-dock-wrapper, .navbar {
        view-transition-name: dds-nav;
    }
}

@keyframes dds-page-out {
    from { opacity: 1; transform: scale(1); }
    to { opacity: 0; transform: scale(0.99); }
}

@keyframes dds-page-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Floating Dock transition states */
.floating-dock-item {
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                background-color 0.25s ease,
                color 0.25s ease,
                box-shadow 0.25s ease !important;
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
    #page-progress-bar {
        transition: none !important;
        animation: none !important;
    }
}