/* ============ RESET ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --red: #E50914;
    --bg: #0f1115;
    --card: #1a1d24;
    --card-2: #232730;
    --text: #e6e8ec;
    --muted: #8a8f99;
    --border: #2a2f3a;
    --green: #22c55e;
    --orange: #f59e0b;
    --blue: #3b82f6;
    --purple: #a855f7;
}
body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Segoe UI', Tahoma, sans-serif;
    font-size: 14px;
    min-height: 100vh;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 12px; }
.error { color: #ef4444; font-size: 13px; margin-top: 8px; }

/* ============ LOGIN ============ */
.login-screen {
    display: flex; align-items: center; justify-content: center;
    min-height: 100vh; padding: 20px;
}
.login-card {
    background: var(--card);
    padding: 36px 32px;
    border-radius: 16px;
    width: 100%; max-width: 380px;
    border: 1px solid var(--border);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.login-card h1 { font-size: 22px; margin-bottom: 6px; }
.login-card p { margin-bottom: 20px; }
.login-card input {
    width: 100%; padding: 12px 14px; margin-bottom: 12px;
    background: var(--card-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text); font-size: 14px;
}
.login-card input:focus { outline: none; border-color: var(--red); }
.login-card button {
    width: 100%; padding: 12px; margin-top: 8px;
    background: var(--red); color: #fff;
    border: none; border-radius: 10px;
    font-weight: 700; font-size: 14px; cursor: pointer;
}
.login-card button:hover { background: #c0070f; }

/* ============ MAIN ============ */
.main { max-width: 1400px; margin: 0 auto; padding: 20px; }

.app-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 24px; flex-wrap: wrap; gap: 12px;
    padding-bottom: 16px; border-bottom: 1px solid var(--border);
}
.header-left h1 { font-size: 22px; }
.header-left span { display: block; margin-top: 4px; }
.header-right { display: flex; gap: 8px; flex-wrap: wrap; }

/* ============ BUTTONS ============ */
.btn {
    padding: 9px 16px; border-radius: 8px;
    font-weight: 600; font-size: 13px; cursor: pointer;
    border: none; transition: 0.15s; white-space: nowrap;
}
.btn-secondary {
    background: var(--card-2); color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }
.btn-danger {
    background: var(--red); color: #fff;
}
.btn-danger:hover { background: #c0070f; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ============ SUMMARY ============ */
.summary {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px; margin-bottom: 20px;
}
.card {
    background: var(--card); padding: 16px;
    border-radius: 12px; border: 1px solid var(--border);
    border-left: 4px solid var(--muted);
}
.card.green  { border-left-color: var(--green); }
.card.orange { border-left-color: var(--orange); }
.card.blue   { border-left-color: var(--blue); }
.card.purple { border-left-color: var(--purple); }
.card-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; }
.card-value { font-size: 24px; font-weight: 800; margin-top: 6px; }

/* ============ FILTERS ============ */
.filters {
    display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap;
}
.filters input, .filters select {
    padding: 10px 14px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text); font-size: 13px;
}
.filters input { flex: 1; min-width: 220px; }
.filters input:focus, .filters select:focus { outline: none; border-color: var(--red); }

/* ============ TABLE ============ */
.table-wrap {
    background: var(--card);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow-x: auto;
    margin-bottom: 16px;
}
table { width: 100%; border-collapse: collapse; }
thead th {
    text-align: left; padding: 14px 12px;
    font-size: 12px; text-transform: uppercase;
    color: var(--muted); letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    background: var(--card-2);
    position: sticky; top: 0; z-index: 1;
}
tbody td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
tbody tr:hover { background: var(--card-2); }
tbody tr:last-child td { border-bottom: none; }
.empty { text-align: center; color: var(--muted); padding: 40px 12px !important; }

.product-img {
    width: 40px; height: 40px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--card-2);
}
.product-img-fallback {
    width: 40px; height: 40px;
    border-radius: 8px;
    background: var(--card-2);
    display: flex; align-items: center; justify-content: center;
    color: var(--muted); font-size: 18px;
}

.badge {
    display: inline-block; padding: 3px 8px;
    border-radius: 6px; font-size: 11px; font-weight: 700;
}
.badge-green   { background: rgba(34,197,94,0.15); color: var(--green); }
.badge-orange  { background: rgba(245,158,11,0.15); color: var(--orange); }
.badge-blue    { background: rgba(59,130,246,0.15); color: var(--blue); }
.badge-muted   { background: var(--card-2); color: var(--muted); }

.price { color: var(--green); font-weight: 700; }
.id-cell { font-family: 'Courier New', monospace; color: var(--muted); }

.copy-btn {
    padding: 5px 10px;
    background: var(--card-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text); font-size: 11px; cursor: pointer;
}
.copy-btn:hover { border-color: var(--red); color: var(--red); }

/* ============ PAGINATION ============ */
.pagination {
    display: flex; align-items: center; gap: 10px;
    justify-content: center; flex-wrap: wrap;
}
.pagination select {
    padding: 8px 12px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text); font-size: 13px;
}
#pageInfo { min-width: 140px; text-align: center; color: var(--muted); font-size: 13px; }

/* ============ TOAST ============ */
.toast {
    position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
    background: var(--green); color: #fff;
    padding: 12px 24px; border-radius: 10px;
    font-weight: 600; font-size: 13px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
    z-index: 9999;
    animation: slideUp 0.25s ease;
}
.toast.error { background: var(--red); }
@keyframes slideUp {
    from { opacity: 0; transform: translate(-50%, 20px); }
    to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
    .app-header { flex-direction: column; align-items: flex-start; }
    .summary { grid-template-columns: repeat(2, 1fr); }
    .filters input { min-width: 100%; }
    .card-value { font-size: 18px; }
}