/* ============================================================================
 * Snaplot Bulk Upload page styling
 * Snap brand: navy #0E2A47, amber #F59E0B, cream #FAF6EC, line #E5E7EB
 * Mobile-first; promotes to two-column layout on viewports >= 720px.
 * ========================================================================= */

.snap-bu {
    --snap-navy:    #0E2A47;
    --snap-amber:   #F59E0B;
    --snap-amber-d: #D97706;
    --snap-cream:   #FAF6EC;
    --snap-ivory:   #FFFFFF;
    --snap-line:    #E5E7EB;
    --snap-line-2:  #F1F5F9;
    --snap-slate-1: #475569;
    --snap-slate-2: #64748B;
    --snap-slate-3: #94A3B8;
    --snap-radius:  12px;
    --snap-radius-sm: 8px;
    --snap-shadow:  0 1px 3px rgba(14,42,71,0.06), 0 1px 2px rgba(14,42,71,0.04);
    --snap-shadow-md: 0 4px 12px rgba(14,42,71,0.08), 0 2px 4px rgba(14,42,71,0.04);
    --snap-font:    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, "Helvetica Neue", sans-serif;

    font-family: var(--snap-font);
    color: var(--snap-navy);
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px 16px 80px;
}

/* ===== Header ============================================================ */
.snap-bu__header {
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 22px;
}
.snap-bu__title {
    margin: 0;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.4px;
    line-height: 1.15;
    flex: 1 1 auto;
}
.snap-bu__sub {
    margin: 4px 0 0;
    font-size: 13px;
    color: var(--snap-slate-2);
    line-height: 1.45;
}
.snap-bu__net {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    border: 1px solid transparent;
    background: #ECFDF5;
    color: #166534;
    border-color: #BBF7D0;
}
.snap-bu__net--reconnect { background: #FEF3C7; color: #92400E; border-color: #FCD34D; }
.snap-bu__net--offline   { background: #FEE2E2; color: #991B1B; border-color: #FECACA; }
.snap-bu__net::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.85;
}
.snap-bu__net--reconnect::before { animation: snap-pulse 1.4s ease-in-out infinite; }
@keyframes snap-pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* ===== Catalogue / auction picker ======================================== */
.snap-bu__pickers {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 18px;
}
@media (min-width: 720px) {
    .snap-bu__pickers { grid-template-columns: 1fr 1fr auto; align-items: flex-end; }
}
.snap-bu__picker {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.snap-bu__picker label {
    font-size: 12px;
    font-weight: 700;
    color: var(--snap-slate-2);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.snap-bu__picker select,
.snap-bu__picker input {
    border: 1px solid var(--snap-line);
    border-radius: var(--snap-radius-sm);
    padding: 10px 12px;
    font-size: 14px;
    background: var(--snap-ivory);
    color: var(--snap-navy);
}
.snap-bu__picker select:focus,
.snap-bu__picker input:focus {
    outline: none;
    border-color: var(--snap-amber);
    box-shadow: 0 0 0 3px rgba(245,158,11,0.18);
}

/* ===== Resume banner ===================================================== */
.snap-bu__resume-banner {
    background: #FEF3C7;
    border: 1px solid #FCD34D;
    color: #92400E;
    padding: 14px 16px;
    border-radius: var(--snap-radius);
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.snap-bu__resume-banner strong { color: #78350F; }
.snap-bu__resume-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

/* ===== Drop zone ========================================================= */
.snap-bu__dropzone {
    border: 2px dashed var(--snap-line);
    border-radius: var(--snap-radius);
    padding: 40px 20px;
    text-align: center;
    background: var(--snap-cream);
    color: var(--snap-slate-1);
    transition: border-color 0.15s ease, background 0.15s ease;
    cursor: pointer;
}
.snap-bu__dropzone:hover { border-color: var(--snap-amber); background: #FFFCF5; }
.snap-bu__dropzone.is-drag-over {
    border-color: var(--snap-amber);
    background: #FEF3C7;
}
.snap-bu__dropzone-icon {
    font-size: 36px;
    margin-bottom: 6px;
    opacity: 0.7;
}
.snap-bu__dropzone-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--snap-navy);
    margin: 0 0 4px;
}
.snap-bu__dropzone-hint {
    font-size: 13px;
    color: var(--snap-slate-2);
    margin: 0 0 14px;
    line-height: 1.5;
}
.snap-bu__dropzone-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Buttons =========================================================== */
.snap-bu__btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    border: 1px solid var(--snap-line);
    background: var(--snap-ivory);
    color: var(--snap-navy);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.snap-bu__btn:hover { border-color: var(--snap-amber); }
.snap-bu__btn:active { transform: scale(0.98); }
.snap-bu__btn:disabled { opacity: 0.5; cursor: not-allowed; }
.snap-bu__btn--primary {
    background: var(--snap-amber);
    border-color: var(--snap-amber-d);
    color: #1A1F2E;
}
.snap-bu__btn--primary:hover { background: #FBBF24; }
.snap-bu__btn--ghost {
    background: transparent;
    border-color: var(--snap-line);
}
.snap-bu__btn--danger {
    background: #FEE2E2;
    border-color: #FECACA;
    color: #991B1B;
}

/* ===== Aggregate progress ================================================ */
.snap-bu__progress {
    background: var(--snap-ivory);
    border: 1px solid var(--snap-line);
    border-radius: var(--snap-radius);
    box-shadow: var(--snap-shadow);
    padding: 16px 18px;
    margin-bottom: 16px;
}
.snap-bu__progress-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--snap-slate-2);
    margin-bottom: 8px;
    gap: 12px;
    flex-wrap: wrap;
}
.snap-bu__progress-meta strong {
    font-size: 16px;
    color: var(--snap-navy);
    font-variant-numeric: tabular-nums;
}
.snap-bu__progress-track {
    height: 8px;
    background: var(--snap-line-2);
    border-radius: 999px;
    overflow: hidden;
}
.snap-bu__progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--snap-amber), #FBBF24);
    border-radius: inherit;
    transition: width 0.25s ease-out;
}

/* ===== Out-of-credits modal ============================================= */
@keyframes snap-bu-fade-in {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Indeterminate progress-bar shimmer used by the committing modal.
 * The bar's inner div has backgroundSize: 50% 100% — sliding the
 * background-position from -100% to 100% pulls the gradient stripe
 * across the full track repeatedly. */
@keyframes snap-bu-progress-slide {
    0%   { background-position: -100% 0; }
    100% { background-position:  200% 0; }
}

/* ===== File rows accordion ============================================== */
/* The wrap holds the visual frame. The header is always visible; the body
 * collapses to height 0 when closed, and grows to 500px (scrollable) when
 * open. Keeps long file lists from pushing the action bar off-screen. */
.snap-bu__filelist-wrap {
    background: var(--snap-ivory);
    border: 1px solid var(--snap-line);
    border-radius: var(--snap-radius);
    overflow: hidden;
    box-shadow: var(--snap-shadow);
    margin-bottom: 16px;
}
.snap-bu__filelist-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 16px;
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--snap-line);
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--snap-navy, #0E2A47);
    cursor: pointer;
    user-select: none;
}
.snap-bu__filelist-header:hover { background: rgba(14, 42, 71, 0.04); }
.snap-bu__filelist-wrap:not(.is-open) .snap-bu__filelist-header {
    border-bottom-color: transparent;
}
.snap-bu__filelist-title { display: inline-flex; align-items: center; gap: 8px; }
.snap-bu__filelist-count {
    font-weight: 500;
    color: #64748b;
    font-variant-numeric: tabular-nums;
}
.snap-bu__filelist-arrow {
    font-size: 14px;
    transition: transform 0.2s ease;
    color: #64748b;
}
.snap-bu__filelist-wrap:not(.is-open) .snap-bu__filelist-arrow {
    transform: rotate(-90deg);
}
.snap-bu__filelist-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
}
.snap-bu__filelist-wrap.is-open .snap-bu__filelist-body {
    max-height: 500px;
    overflow-y: auto;
    overflow-x: hidden;
    /* Inner padding gives rows breathing room from the scrollbar */
    padding: 8px 8px 8px 8px;
}
.snap-bu__filelist {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.snap-bu__filelist:empty { display: none; }

.snap-bu__row {
    display: grid;
    grid-template-columns: 40px 1fr auto auto;
    gap: 10px;
    align-items: center;
    padding: 8px 12px;
    border-bottom: 1px solid var(--snap-line-2);
    font-size: 13px;
}
.snap-bu__row:last-child { border-bottom: none; }
.snap-bu__row-thumb {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    background: var(--snap-line-2);
    object-fit: cover;
    border: 1px solid var(--snap-line);
}
.snap-bu__row-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 600;
    color: var(--snap-navy);
}
.snap-bu__row-meta {
    font-size: 11px;
    color: var(--snap-slate-3);
    margin-top: 1px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.snap-bu__row-progress {
    width: 70px;
    height: 4px;
    background: var(--snap-line-2);
    border-radius: 999px;
    overflow: hidden;
}
.snap-bu__row-progress-fill {
    height: 100%;
    background: var(--snap-amber);
    transition: width 0.15s ease-out;
}
.snap-bu__row-status {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 999px;
    border: 1px solid transparent;
    white-space: nowrap;
}
.snap-bu__row-status--pending  { background: var(--snap-line-2); color: var(--snap-slate-1); }
.snap-bu__row-status--hashing  { background: #EFF6FF; color: #1E40AF; border-color: #BFDBFE; }
.snap-bu__row-status--uploading{ background: #FEF3C7; color: #92400E; border-color: #FCD34D; }
.snap-bu__row-status--retrying { background: #FEE2E2; color: #991B1B; border-color: #FECACA; }
.snap-bu__row-status--complete { background: #ECFDF5; color: #166534; border-color: #BBF7D0; }
.snap-bu__row-status--skipped  { background: #EDE9FE; color: #5B21B6; border-color: #DDD6FE; }
.snap-bu__row-status--failed   { background: #FEE2E2; color: #991B1B; border-color: #FECACA; }

/* ===== Sticky action bar ================================================= */
.snap-bu__actionbar {
    position: sticky;
    bottom: 0;
    background: var(--snap-ivory);
    border-top: 1px solid var(--snap-line);
    padding: 12px 14px calc(12px + env(safe-area-inset-bottom, 0));
    margin: 16px -16px -80px;
    box-shadow: 0 -4px 12px rgba(14,42,71,0.06);
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}
.snap-bu__actionbar-spacer { flex: 1 1 auto; }

/* ===== Preview step ====================================================== */
.snap-bu__preview {
    background: var(--snap-ivory);
    border: 1px solid var(--snap-line);
    border-radius: var(--snap-radius);
    padding: 18px 20px;
    margin-bottom: 16px;
    box-shadow: var(--snap-shadow);
}
.snap-bu__preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 12px;
    margin-top: 14px;
}
.snap-bu__preview-card {
    background: var(--snap-cream);
    border: 1px solid var(--snap-line);
    border-radius: var(--snap-radius-sm);
    padding: 10px 12px;
}
.snap-bu__preview-card-num {
    font-size: 11px;
    font-weight: 700;
    color: var(--snap-slate-2);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.snap-bu__preview-card-count {
    font-size: 22px;
    font-weight: 800;
    color: var(--snap-navy);
    margin: 4px 0 6px;
    font-variant-numeric: tabular-nums;
}
.snap-bu__preview-card-thumbs {
    display: flex;
    gap: 4px;
    overflow: hidden;
}
.snap-bu__preview-card-thumbs img {
    width: 32px;
    height: 32px;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid var(--snap-line);
}
.snap-bu__preview-unknown {
    background: #FEF3C7;
    border: 1px solid #FCD34D;
    color: #92400E;
    border-radius: var(--snap-radius-sm);
    padding: 10px 12px;
    margin-top: 12px;
    font-size: 13px;
}

/* ===== Sessions list / picker ============================================ */
.snap-bu__sessions {
    background: var(--snap-ivory);
    border: 1px solid var(--snap-line);
    border-radius: var(--snap-radius);
    margin-bottom: 16px;
    overflow: hidden;
}
.snap-bu__sessions-empty {
    padding: 18px 20px;
    color: var(--snap-slate-2);
    font-size: 14px;
    text-align: center;
}
.snap-bu__session-row {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--snap-line-2);
}
.snap-bu__session-row:last-child { border-bottom: none; }
.snap-bu__session-name {
    font-weight: 700;
    color: var(--snap-navy);
}
.snap-bu__session-meta {
    font-size: 12px;
    color: var(--snap-slate-2);
}

/* ===== Empty / signed-out states ========================================= */
.snap-bu__signed-out {
    background: var(--snap-ivory);
    border: 1px dashed var(--snap-line);
    border-radius: var(--snap-radius);
    padding: 40px 24px;
    text-align: center;
    color: var(--snap-slate-2);
}
.snap-bu__signed-out h2 {
    color: var(--snap-navy);
    font-size: 18px;
    margin: 0 0 8px;
}