:root {
    color-scheme: dark;
    --bg: #070b14;
    --card: #111a2b;
    --line: #1d2a44;
    --text: #e9f0ff;
    --muted: #9eb2d6;
    --brand: #4f8cff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, Segoe UI, Arial, sans-serif;
    background: radial-gradient(circle at top, #13203a, var(--bg) 45%);
    color: var(--text);
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--line);
    background: rgba(10, 16, 30, 0.8);
    backdrop-filter: blur(8px);
}

.logo {
    color: var(--text);
    text-decoration: none;
    font-size: 20px;
    font-weight: 700;
}

.btn {
    color: var(--text);
    text-decoration: none;
    background: #1a2842;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 8px 12px;
}

.container {
    max-width: 980px;
    margin: 26px auto;
    padding: 0 16px 40px;
}

.card {
    background: rgba(17, 26, 43, 0.88);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 16px;
}

.upload-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.file-input {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.dropzone {
    width: 100%;
    min-height: 150px;
    border: 2px dashed #2c4670;
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #0b1424;
    color: var(--muted);
    cursor: pointer;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.dropzone:hover,
.dropzone.dragover {
    border-color: var(--brand);
    transform: translateY(-1px);
}

.dropzone-main {
    color: var(--text);
    font-weight: 700;
    margin-bottom: 6px;
}

.dropzone-sub {
    font-size: 14px;
}

.selected-file {
    width: 100%;
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.selected-file-ok {
    color: #8fd5a7;
}

.upload-queue {
    width: 100%;
    display: grid;
    gap: 8px;
}

.ajax-upload-result {
    width: 100%;
    display: grid;
    gap: 8px;
}

.ajax-upload-item {
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 10px;
    background: #0b1322;
}

.ajax-upload-item p {
    margin: 0 0 8px 0;
}

.queue-item {
    background: #0b1322;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 8px 10px;
}

.queue-head {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 6px;
}

.queue-preview {
    width: 100%;
    max-height: 140px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--line);
    margin-bottom: 8px;
}

.queue-bar {
    height: 7px;
    background: #14243d;
    border-radius: 999px;
    overflow: hidden;
}

.queue-bar i {
    display: block;
    height: 100%;
    width: 0;
    background: linear-gradient(120deg, var(--brand), #7a7dff);
}

.queue-error .queue-bar i {
    background: #8d2b47;
}

button {
    border: 0;
    border-radius: 10px;
    padding: 10px 14px;
    background: linear-gradient(120deg, var(--brand), #6a66ff);
    color: white;
    cursor: pointer;
    font-weight: 600;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px;
}

.bulk-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.scroll-sentinel {
    text-align: center;
    color: var(--muted);
    padding: 12px 8px 4px;
    font-size: 13px;
}

.item {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px;
    background: #0d1524;
}

.item-check {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--muted);
    font-size: 12px;
    margin-bottom: 8px;
}

.thumb {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid var(--line);
    margin-bottom: 10px;
}

.item-title {
    display: block;
    margin-bottom: 6px;
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
}

.item-actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.item-actions form {
    margin: 0;
}

.muted {
    color: var(--muted);
    font-size: 12px;
}

.danger-btn {
    background: #3a1820;
    border: 1px solid #5f2633;
    color: #ffd6dd;
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 12px;
}

.notice {
    background: #0f243c;
    border: 1px solid #204773;
    border-radius: 12px;
    padding: 10px 12px;
}

.preview {
    max-width: 100%;
    border-radius: 12px;
    border: 1px solid var(--line);
    margin: 10px 0 16px;
}

.success-card {
    border-color: #2b5cb3;
}

.copy-row {
    display: flex;
    gap: 8px;
    flex-wrap: nowrap;
    align-items: center;
}

.copy-input {
    flex: 1 1 auto;
    min-width: 0;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: #0b1322;
    color: var(--text);
    padding: 10px 12px;
}

.copy-btn {
    white-space: nowrap;
    flex: 0 0 auto;
    background: linear-gradient(120deg, #0b6935, #1c7941);
    color: #ffffff;
}

.stats-grid {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.stat {
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #0b1322;
    padding: 12px;
}

.stat span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    margin-bottom: 4px;
}

.stat strong {
    font-size: 18px;
}

.top-list {
    margin: 0;
    padding-left: 18px;
}

.top-list li {
    margin: 4px 0;
}

.top-list span {
    color: var(--muted);
}

.sort-form {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.sort-form select {
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #0b1322;
    color: var(--text);
    padding: 8px 10px;
}