/* ─── RetailOS Design System ─────────────────────────────────────────────── */
:root {
    --bg:        #0d0f14;
    --bg2:       #13161d;
    --bg3:       #1a1e28;
    --border:    rgba(255,255,255,0.07);
    --text:      #e8eaf0;
    --muted:     #6b7280;
    --accent:    #6366f1;
    --accent2:   #818cf8;
    --success:   #10b981;
    --warning:   #f59e0b;
    --danger:    #ef4444;
    --info:      #3b82f6;
    --sidebar-w: 260px;
    --radius:    12px;
    --shadow:    0 4px 24px rgba(0,0,0,0.4);
    --transition: 0.2s ease;
    font-family: 'DM Sans', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
    background: var(--bg);
    color: var(--text);
    display: flex;
    overflow: hidden;
}

/* ─── Scrollbars ─────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 99px; }

/* ─── Sidebar ────────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    background: var(--bg2);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: fixed;
    top: 0; left: 0;
    z-index: 100;
    transition: transform var(--transition);
    overflow-y: auto;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px 20px 20px;
    border-bottom: 1px solid var(--border);
}

.brand-icon {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; color: white;
}

.brand-name {
    display: block;
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: 18px;
    letter-spacing: -0.5px;
}

.brand-version { display: block; font-size: 11px; color: var(--muted); margin-top: 1px; }

.sidebar-nav { flex: 1; padding: 16px 12px; display: flex; flex-direction: column; gap: 4px; }

.nav-section { margin-bottom: 8px; }

.nav-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--muted);
    font-weight: 600;
    padding: 8px 8px 4px;
    display: block;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: #9ca3af;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition);
    position: relative;
}

.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: rgba(99,102,241,0.15); color: var(--accent2); }
.nav-item.active i { color: var(--accent); }
.nav-item i { width: 18px; text-align: center; font-size: 15px; }

.nav-highlight { border: 1px solid rgba(99,102,241,0.3); }
.nav-highlight:hover { background: rgba(99,102,241,0.1); }

.badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 99px;
    min-width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--accent), var(--info));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 13px;
    color: white;
    flex-shrink: 0;
}

.user-details { flex: 1; min-width: 0; }
.user-name { display: block; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { display: block; font-size: 11px; color: var(--muted); text-transform: capitalize; }

.logout-btn {
    color: var(--muted);
    text-decoration: none;
    padding: 8px;
    border-radius: 8px;
    transition: all var(--transition);
}
.logout-btn:hover { color: var(--danger); background: rgba(239,68,68,0.1); }

/* ─── Main Wrapper ───────────────────────────────────────────────────────── */
.main-wrapper {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.topbar {
    height: 60px;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    flex-shrink: 0;
}

.sidebar-toggle {
    background: none; border: none; color: var(--muted); cursor: pointer;
    font-size: 18px; padding: 8px; border-radius: 8px; transition: all var(--transition);
}
.sidebar-toggle:hover { background: var(--bg3); color: var(--text); }

.topbar-actions { display: flex; align-items: center; gap: 8px; }
.topbar-btn {
    position: relative; color: var(--muted); text-decoration: none;
    padding: 8px 12px; border-radius: 8px; font-size: 16px; transition: all var(--transition);
}
.topbar-btn:hover { color: var(--text); background: var(--bg3); }
.notif-dot {
    position: absolute; top: 8px; right: 10px;
    width: 7px; height: 7px;
    background: var(--danger); border-radius: 50%;
    border: 2px solid var(--bg2);
}

.content { flex: 1; overflow-y: auto; padding: 28px 32px; }

/* ─── Alerts ─────────────────────────────────────────────────────────────── */
.alert {
    display: flex; align-items: center; gap: 10px;
    padding: 14px 18px; border-radius: var(--radius);
    margin-bottom: 20px; font-size: 14px; font-weight: 500;
}
.alert-success { background: rgba(16,185,129,0.12); color: var(--success); border: 1px solid rgba(16,185,129,0.25); }
.alert-error   { background: rgba(239,68,68,0.12);  color: var(--danger);  border: 1px solid rgba(239,68,68,0.25); }

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.card-title {
    font-family: 'Syne', sans-serif;
    font-weight: 700; font-size: 16px;
    display: flex; align-items: center; gap: 10px;
}
.card-title i { color: var(--accent); }
.card-body { padding: 24px; }

/* ─── Stats Grid ─────────────────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition);
}
.stat-card:hover { transform: translateY(-2px); }
.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
}
.stat-card.indigo::before { background: linear-gradient(90deg, var(--accent), var(--accent2)); }
.stat-card.green::before  { background: linear-gradient(90deg, var(--success), #34d399); }
.stat-card.amber::before  { background: linear-gradient(90deg, var(--warning), #fcd34d); }
.stat-card.red::before    { background: linear-gradient(90deg, var(--danger),  #f87171); }
.stat-card.blue::before   { background: linear-gradient(90deg, var(--info),    #60a5fa); }

.stat-icon {
    width: 44px; height: 44px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; margin-bottom: 12px;
}
.stat-card.indigo .stat-icon { background: rgba(99,102,241,0.15); color: var(--accent2); }
.stat-card.green  .stat-icon { background: rgba(16,185,129,0.15); color: var(--success); }
.stat-card.amber  .stat-icon { background: rgba(245,158,11,0.15); color: var(--warning); }
.stat-card.red    .stat-icon { background: rgba(239,68,68,0.15);  color: var(--danger); }
.stat-card.blue   .stat-icon { background: rgba(59,130,246,0.15); color: var(--info); }

.stat-value {
    font-family: 'Syne', sans-serif;
    font-size: 28px; font-weight: 800;
    line-height: 1; margin-bottom: 4px;
}
.stat-label { font-size: 13px; color: var(--muted); }

/* ─── Page Header ────────────────────────────────────────────────────────── */
.page-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 24px;
}
.page-title {
    font-family: 'Syne', sans-serif;
    font-size: 24px; font-weight: 800;
    display: flex; align-items: center; gap: 12px;
}
.page-title i { 
    width: 44px; height: 44px; border-radius: 12px;
    background: rgba(99,102,241,0.15);
    display: flex; align-items: center; justify-content: center;
    color: var(--accent); font-size: 18px;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: 8px; border: none;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px; font-weight: 600;
    cursor: pointer; text-decoration: none;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-primary   { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent2); transform: translateY(-1px); }
.btn-success   { background: var(--success); color: white; }
.btn-success:hover { opacity: 0.9; }
.btn-danger    { background: var(--danger); color: white; }
.btn-danger:hover { opacity: 0.9; }
.btn-ghost     { background: var(--bg3); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* ─── Forms ──────────────────────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }
label { font-size: 13px; font-weight: 500; color: #9ca3af; }

input, select, textarea {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    padding: 10px 14px;
    transition: border-color var(--transition);
    width: 100%;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}
select { cursor: pointer; }
textarea { resize: vertical; min-height: 80px; }
input[type=checkbox] { width: auto; }

/* ─── Tables ─────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; }
thead tr { background: var(--bg3); }
thead th {
    padding: 12px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--muted);
    white-space: nowrap;
}
tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}
tbody tr:hover { background: rgba(255,255,255,0.02); }
tbody tr:last-child { border-bottom: none; }
td { padding: 12px 16px; font-size: 14px; vertical-align: middle; }

/* ─── Badges/Tags ────────────────────────────────────────────────────────── */
.tag {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 4px 10px; border-radius: 99px;
    font-size: 11px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.tag-green  { background: rgba(16,185,129,0.15); color: var(--success); }
.tag-red    { background: rgba(239,68,68,0.15);  color: var(--danger); }
.tag-amber  { background: rgba(245,158,11,0.15); color: var(--warning); }
.tag-blue   { background: rgba(59,130,246,0.15); color: var(--info); }
.tag-purple { background: rgba(99,102,241,0.15); color: var(--accent2); }
.tag-gray   { background: rgba(107,114,128,0.15); color: var(--muted); }

/* ─── Search Bar ─────────────────────────────────────────────────────────── */
.search-wrap { position: relative; max-width: 320px; }
.search-wrap input { padding-left: 38px; }
.search-wrap i {
    position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
    color: var(--muted); font-size: 14px;
}

/* ─── PDV ────────────────────────────────────────────────────────────────── */
.pdv-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 20px;
    height: calc(100vh - 148px);
}

.pdv-products { display: flex; flex-direction: column; gap: 16px; height: 100%; }
.pdv-cart { display: flex; flex-direction: column; gap: 0; height: 100%; }

.product-search-box input {
    font-size: 16px; padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: 12px;
}
.product-search-box input:focus { border-color: var(--accent); }

.product-results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
    overflow-y: auto;
    padding-bottom: 8px;
}

.product-card-item {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}
.product-card-item:hover { border-color: var(--accent); transform: translateY(-2px); }
.product-card-item .pname { font-weight: 600; font-size: 13px; margin-bottom: 6px; }
.product-card-item .pprice { font-family: 'Syne', sans-serif; font-size: 18px; color: var(--success); font-weight: 700; }
.product-card-item .pstock { font-size: 11px; color: var(--muted); margin-top: 4px; }

.cart-container {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    height: 100%;
    display: flex; flex-direction: column;
}
.cart-header { padding: 16px 20px; border-bottom: 1px solid var(--border); }
.cart-items { flex: 1; overflow-y: auto; padding: 8px; }
.cart-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; border-radius: 8px;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}
.cart-item:last-child { border-bottom: none; }
.cart-item-name { flex: 1; font-weight: 500; }
.cart-item-qty  { display: flex; align-items: center; gap: 6px; }
.qty-btn { background: var(--bg3); border: none; color: var(--text); width: 26px; height: 26px; border-radius: 6px; cursor: pointer; font-size: 14px; }
.cart-item-price { font-family: 'Syne', sans-serif; font-weight: 700; color: var(--success); min-width: 70px; text-align: right; }
.cart-item-del { background: none; border: none; color: var(--muted); cursor: pointer; padding: 4px; }
.cart-item-del:hover { color: var(--danger); }

.cart-footer {
    border-top: 1px solid var(--border);
    padding: 16px 20px;
}
.cart-totals { margin-bottom: 12px; font-size: 14px; }
.cart-totals .row { display: flex; justify-content: space-between; padding: 4px 0; }
.cart-totals .total-row { font-family: 'Syne', sans-serif; font-size: 20px; font-weight: 800; color: var(--success); border-top: 1px solid var(--border); padding-top: 8px; margin-top: 4px; }
.checkout-btn { width: 100%; padding: 14px; font-size: 16px; border-radius: 10px; }

/* ─── Dashboard Chart ────────────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }

/* ─── Auth pages ─────────────────────────────────────────────────────────── */
.auth-page {
    min-height: 100vh; width: 100%;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg);
    background-image: radial-gradient(ellipse at 20% 50%, rgba(99,102,241,0.08) 0%, transparent 60%),
                      radial-gradient(ellipse at 80% 20%, rgba(59,130,246,0.06) 0%, transparent 60%);
}
.auth-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 48px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow);
}
.auth-logo {
    text-align: center; margin-bottom: 32px;
}
.auth-logo .logo-icon {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    border-radius: 18px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 28px; color: white; margin-bottom: 12px;
}
.auth-logo h1 {
    font-family: 'Syne', sans-serif;
    font-size: 28px; font-weight: 800;
    letter-spacing: -1px;
}
.auth-logo p { color: var(--muted); font-size: 14px; margin-top: 4px; }
.auth-form { display: flex; flex-direction: column; gap: 16px; }
.auth-btn { width: 100%; justify-content: center; padding: 14px; font-size: 16px; border-radius: 10px; margin-top: 8px; }

/* ─── Showcase (public) ──────────────────────────────────────────────────── */
.showcase-page {
    min-height: 100vh;
    background: #08090d;
    color: #e8eaf0;
}
.showcase-header {
    background: rgba(13,15,20,0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 20px 48px;
    display: flex; align-items: center; justify-content: space-between;
    position: sticky; top: 0; z-index: 10;
}
.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
    padding: 48px;
    max-width: 1400px; margin: 0 auto;
}
.showcase-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}
.showcase-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.5); }
.showcase-thumb {
    height: 200px;
    background: linear-gradient(135deg, var(--bg3), #1e2230);
    display: flex; align-items: center; justify-content: center;
    font-size: 48px;
}
.showcase-info { padding: 20px; }
.showcase-name { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 16px; margin-bottom: 8px; }
.showcase-price { font-size: 24px; font-weight: 800; color: var(--success); }

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .pdv-layout { grid-template-columns: 1fr; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-wrapper { margin-left: 0; }
    .content { padding: 16px; }
    .showcase-grid { padding: 16px; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
}

/* ─── Utilities ──────────────────────────────────────────────────────────── */
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.text-muted { color: var(--muted); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.font-mono { font-family: monospace; }
.w-full { width: 100%; }