:root {
    color-scheme: dark;
    --bg: #0c1118;
    --panel: #121a24;
    --panel-2: #0f1720;
    --border: #27364a;
    --text: #f4f7fb;
    --muted: #9aa9ba;
    --accent: #16d35d;
    --accent-2: #0fb94e;
    --danger: #ff5d68;
    --warning: #ffbe3d;
    --info: #4aa8ff;
    font-family: Inter, Segoe UI, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top right, rgba(22, 211, 93, 0.10), transparent 28rem),
        var(--bg);
    color: var(--text);
}

button, input, select { font: inherit; }

.app-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    padding: 34px 0 60px;
}

.topbar, .card-heading, .toolbar, .session-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.topbar { margin-bottom: 24px; }

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 8px; font-size: clamp(28px, 4vw, 42px); }
h2 { margin-bottom: 6px; }
p, small { color: var(--muted); }

.eyebrow {
    display: block;
    margin-bottom: 8px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.14em;
}

.card, .summary-card {
    border: 1px solid var(--border);
    background: rgba(18, 26, 36, 0.94);
    border-radius: 18px;
    box-shadow: 0 18px 55px rgba(0, 0, 0, 0.20);
}

.card { padding: 22px; margin-bottom: 18px; }
.login-card { max-width: 520px; margin: 70px auto 0; }

.login-form { display: grid; gap: 16px; margin-top: 22px; }
.login-form label, .inventory-filters label { display: grid; gap: 8px; }

input[type="email"],
input[type="password"],
input[type="search"],
select {
    width: 100%;
    padding: 13px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--panel-2);
    color: var(--text);
    outline: none;
}

input:focus, select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(22, 211, 93, 0.12);
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.summary-card { padding: 18px; }
.summary-card span, .summary-card small { display: block; }
.summary-card strong { display: block; margin: 8px 0 4px; font-size: 30px; }

.button {
    border: 0;
    border-radius: 10px;
    padding: 11px 17px;
    font-weight: 800;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.button:hover:not(:disabled) { transform: translateY(-1px); }
.button:disabled { cursor: not-allowed; opacity: 0.45; }
.button.primary { background: var(--accent); color: #05170b; }
.button.primary:hover:not(:disabled) { background: var(--accent-2); }
.button.secondary { background: #1a2634; color: var(--text); border: 1px solid var(--border); }

.session-label { color: var(--muted); font-size: 14px; }

.overwrite-switch {
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--muted);
    font-size: 14px;
}

.drop-zone {
    display: grid;
    place-items: center;
    gap: 8px;
    min-height: 210px;
    margin-top: 20px;
    padding: 26px;
    border: 2px dashed #39506a;
    border-radius: 16px;
    background: var(--panel-2);
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.drop-zone.dragover {
    border-color: var(--accent);
    background: rgba(22, 211, 93, 0.08);
}

.drop-zone input { display: none; }

.drop-icon {
    display: grid;
    place-items: center;
    width: 54px;
    height: 54px;
    border-radius: 16px;
    background: rgba(22, 211, 93, 0.14);
    color: var(--accent);
    font-size: 28px;
    font-weight: 900;
}

.queue-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 22px;
    margin-top: 16px;
    color: var(--muted);
    font-size: 14px;
}

.queue-summary strong { color: var(--text); }
.toolbar { justify-content: flex-start; margin-top: 18px; }

.queue-list { display: grid; gap: 12px; }

.queue-item {
    padding: 16px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--panel-2);
}

.queue-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}

.file-name { overflow-wrap: anywhere; font-weight: 800; }
.file-meta, .file-status { margin-top: 5px; color: var(--muted); font-size: 13px; }
.file-status.success { color: var(--accent); }
.file-status.error { color: var(--danger); }
.file-status.uploading { color: var(--info); }

.progress-track {
    height: 9px;
    margin-top: 13px;
    overflow: hidden;
    border-radius: 999px;
    background: #253144;
}

.progress-bar {
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-2), var(--accent));
    transition: width 0.15s linear;
}

.remove-button {
    border: 0;
    background: transparent;
    color: var(--danger);
    cursor: pointer;
    font-weight: 800;
}

.empty-state {
    padding: 40px 18px;
    text-align: center;
    color: var(--muted);
}

.inventory-heading { align-items: flex-start; }

.inventory-filters {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 14px;
    margin: 18px 0;
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 14px;
}

.inventory-table {
    width: 100%;
    min-width: 900px;
    border-collapse: collapse;
}

.inventory-table th,
.inventory-table td {
    padding: 14px 15px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.inventory-table th {
    background: #101925;
    color: var(--muted);
    font-size: 12px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.inventory-table tr:last-child td { border-bottom: 0; }

.file-path {
    display: block;
    margin-top: 4px;
    color: var(--muted);
    font-size: 12px;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    padding: 5px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
}

.status-pill.valid {
    background: rgba(22, 211, 93, 0.12);
    color: var(--accent);
}

.status-pill.invalid {
    background: rgba(255, 93, 104, 0.12);
    color: var(--danger);
}

.toast {
    position: fixed;
    right: 24px;
    bottom: 24px;
    max-width: 420px;
    padding: 14px 17px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #172334;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.30);
}

.toast.error { border-color: rgba(255, 93, 104, 0.55); }
.toast.success { border-color: rgba(22, 211, 93, 0.55); }
.hidden { display: none !important; }

@media (max-width: 820px) {
    .topbar, .card-heading { align-items: flex-start; flex-direction: column; }
    .summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .inventory-filters { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
    .app-shell { width: min(100% - 20px, 1180px); padding-top: 20px; }
    .summary-grid { grid-template-columns: 1fr; }
    .queue-row { flex-direction: column; }
}