:root {
    --bg: #0b0b0f;
    --panel: #14141b;
    --panel-2: #1b1b24;
    --text: #f5f5f5;
    --muted: #9a9ab0;
    --line: rgba(255, 255, 255, 0.08);
    --accent: #ffffff;
    --accent-2: #9fe870;
    --danger: #ff5c5c;
    --success: #43d17c;
    --warning: #ffb547;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
    --radius: 18px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: Inter, Arial, sans-serif; background: var(--bg); color: var(--text); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }

.login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background: radial-gradient(circle at top, #1f1f2c 0%, #0b0b0f 48%);
    padding: 24px;
}

.login-card {
    width: 100%;
    max-width: 460px;
    background: rgba(20, 20, 27, 0.92);
    border: 1px solid var(--line);
    border-radius: 24px;
    box-shadow: var(--shadow);
    padding: 32px;
}
.login-card.wide { max-width: 700px; }
.login-logo { width: 180px; margin: 0 auto 20px; }
.login-card h1 { margin: 0 0 8px; font-size: 30px; }
.login-card p { margin: 0 0 24px; color: var(--muted); }
.login-tip { margin-top: 20px; color: var(--muted); font-size: 14px; }

.app-shell {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: #0f0f15;
    border-right: 1px solid var(--line);
    padding: 26px;
    position: sticky;
    top: 0;
    height: 100vh;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}
.brand strong { display: block; font-size: 16px; }
.brand span { color: var(--muted); font-size: 13px; }
.brand-logo { width: 118px; background: #000; padding: 6px; border-radius: 12px; }

.menu { display: grid; gap: 8px; }
.menu a {
    padding: 14px 16px;
    border-radius: 14px;
    color: var(--muted);
    transition: 0.2s ease;
    border: 1px solid transparent;
}
.menu a:hover, .menu a.active {
    background: var(--panel);
    color: var(--text);
    border-color: var(--line);
}

.content { padding: 28px; }
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}
.topbar h1 { margin: 0 0 4px; font-size: 30px; }
.topbar p { margin: 0; color: var(--muted); }
.user-pill {
    background: var(--panel);
    border: 1px solid var(--line);
    padding: 12px 16px;
    border-radius: 999px;
    text-align: right;
}
.user-pill small { display: block; color: var(--muted); }

.panel, .stat-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.panel { padding: 22px; }
.panel-head { margin-bottom: 18px; }
.panel-head h2 { margin: 0; font-size: 20px; }
.panel-head.between, .between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 22px;
}
.reports-mini { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stat-card { padding: 20px; }
.stat-card span { color: var(--muted); display: block; margin-bottom: 12px; }
.stat-card strong { font-size: 26px; line-height: 1.2; }
.stat-card.warning strong { color: var(--warning); }

.cards-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 22px;
}
.align-start { align-items: start; }

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 14px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; }
small, .muted { color: var(--muted); }

label { display: grid; gap: 8px; color: var(--muted); font-size: 14px; }
input, select, textarea {
    width: 100%;
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 13px 14px;
    outline: none;
}
input:focus, select:focus, textarea:focus { border-color: rgba(255,255,255,0.25); }
textarea { resize: vertical; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.span-2 { grid-column: span 2; }
.stack { display: grid; gap: 16px; }
.slim-form { max-width: 760px; }
.actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.full { width: 100%; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: 12px;
    background: transparent;
    border: 1px solid var(--line);
    color: var(--text);
    cursor: pointer;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: #fff; color: #050505; border-color: #fff; font-weight: 700; }
.btn-danger { background: rgba(255,92,92,0.15); color: #ffd1d1; border-color: rgba(255,92,92,0.25); }
.btn-sm { padding: 8px 12px; font-size: 13px; }

.flash {
    padding: 14px 16px;
    border-radius: 14px;
    margin-bottom: 16px;
    border: 1px solid transparent;
}
.flash-success { background: rgba(67, 209, 124, 0.1); border-color: rgba(67, 209, 124, 0.24); color: #d8ffea; }
.flash-error { background: rgba(255, 92, 92, 0.1); border-color: rgba(255, 92, 92, 0.24); color: #ffd9d9; }

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 10px;
    border-radius: 999px;
    font-size: 12px;
    border: 1px solid var(--line);
}
.badge.success { background: rgba(67, 209, 124, 0.1); color: #d8ffea; }
.badge.danger { background: rgba(255, 92, 92, 0.1); color: #ffd9d9; }

.row-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.search-inline { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.search-inline input { min-width: 190px; }

.status-card {
    border-radius: 18px;
    padding: 18px;
    margin-bottom: 18px;
    border: 1px solid var(--line);
}
.success-box { background: rgba(67, 209, 124, 0.08); }
.warn-box { background: rgba(255, 181, 71, 0.08); }

.list-table.compact { display: grid; gap: 10px; }
.list-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 12px 14px;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 12px;
}

.pos-builder { display: grid; gap: 14px; }
#sale-items { display: grid; gap: 12px; }
.sale-item-row {
    display: grid;
    grid-template-columns: 2.2fr 0.8fr 1fr 1fr auto;
    gap: 12px;
    align-items: end;
    padding: 14px;
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 16px;
}
.pos-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.pos-summary > div {
    background: var(--panel-2);
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 18px;
}
.pos-summary span { display: block; color: var(--muted); margin-bottom: 8px; }
.pos-summary strong { font-size: 24px; }

hr { border: 0; border-top: 1px solid var(--line); margin: 20px 0; }

@media (max-width: 1200px) {
    .stats-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .sale-item-row { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 980px) {
    .app-shell { grid-template-columns: 1fr; }
    .sidebar { position: relative; height: auto; }
    .cards-two, .grid-2, .grid-3, .pos-summary, .reports-mini, .stats-grid { grid-template-columns: 1fr; }
    .span-2 { grid-column: auto; }
    .topbar { flex-direction: column; align-items: flex-start; }
}