:root {
    --black: #111111;
    --ink: #1d1d1f;
    --muted: #70757d;
    --line: #e8e8ea;
    --orange: #ff7a18;
    --orange-dark: #d85c00;
    --white: #ffffff;
    --soft: #f7f7f8;
    --danger: #c62828;
    --success: #1f7a3f;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--soft);
    color: var(--ink);
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
    width: 260px;
    background: var(--black);
    color: var(--white);
    padding: 22px 16px;
    position: sticky;
    top: 0;
    height: 100vh;
}
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.brand span {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: var(--orange);
    color: #111;
    font-weight: 800;
}
.brand.big { margin-bottom: 12px; }
.brand.big span { width: 56px; height: 56px; }
.sidebar nav { display: grid; gap: 6px; }
.sidebar a {
    padding: 12px 14px;
    border-radius: 8px;
    color: #f6f6f6;
}
.sidebar a.active, .sidebar a:hover { background: var(--orange); color: #111; }
.main { flex: 1; padding: 28px; min-width: 0; }
.menu-toggle, .mobile-nav, .mobile-scrim { display: none; }
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}
.top-title { min-width: 0; }
.eyebrow { color: var(--orange-dark); text-transform: uppercase; letter-spacing: 0; font-size: 12px; font-weight: 700; margin: 0 0 4px; }
h1 { margin: 0; font-size: 28px; }
h2 { margin: 0 0 16px; font-size: 18px; }
.userbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.btn {
    border: 0;
    border-radius: 8px;
    padding: 10px 14px;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
}
.btn.primary { background: var(--orange); color: #111; }
.btn.ghost { background: #fff; border: 1px solid var(--line); color: var(--ink); }
.btn.danger { background: var(--danger); color: white; }
.alert { padding: 12px 14px; border-radius: 8px; background: #eaf7ef; color: var(--success); margin-bottom: 16px; }
.alert.danger { background: #fdeaea; color: var(--danger); }
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(150px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}
.stat, .panel, .form-panel {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
    box-shadow: 0 8px 24px rgba(17,17,17,.04);
}
.stat span { display: block; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.stat strong { font-size: 24px; }
.split { display: grid; grid-template-columns: 2fr 1fr; gap: 18px; margin-bottom: 18px; }
.split.three { grid-template-columns: repeat(3, 1fr); align-items: start; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; }
.pill { border-radius: 999px; padding: 4px 9px; font-size: 12px; font-weight: 800; }
.pill.in { background: #eaf7ef; color: var(--success); }
.pill.out { background: #fff1e8; color: var(--orange-dark); }
.warning-row { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.warning-row span, .muted { color: var(--muted); }
.low-stock td { background: #fff8ee; }
.grid-form { display: grid; grid-template-columns: repeat(4, minmax(150px, 1fr)); gap: 12px; align-items: end; }
.grid-form .wide { grid-column: span 2; }
label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; font-weight: 700; }
input, select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 12px;
    min-height: 40px;
    background: #fff;
    color: var(--ink);
}
.form-panel { margin-bottom: 18px; }
.toolbar { display: flex; gap: 10px; margin: 8px 0 14px; }
.toolbar input { max-width: 360px; }
.export-toolbar { align-items: center; flex-wrap: wrap; }
.export-toolbar input { max-width: 220px; }
.pager { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.pager a { padding: 7px 10px; border-radius: 6px; background: #fff; border: 1px solid var(--line); }
.pager a.active { background: var(--black); color: #fff; }
.stack-form, .inline-edit { display: grid; gap: 8px; margin-bottom: 12px; }
.inline-edit { grid-template-columns: 1fr 1fr auto auto; align-items: center; border-top: 1px solid var(--line); padding-top: 10px; }
.login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, #111 0%, #2b1608 55%, #ff7a18 100%);
    padding: 20px;
}
.login-card {
    width: min(420px, 100%);
    background: #fff;
    border-radius: 8px;
    padding: 28px;
    box-shadow: 0 24px 60px rgba(0,0,0,.25);
    display: grid;
    gap: 14px;
}
.login-card h1 { font-size: 24px; }
.ocr-box {
    max-height: 260px;
    overflow: auto;
    padding: 12px;
    border-radius: 8px;
    background: #171717;
    color: #f8f8f8;
    white-space: pre-wrap;
    font-size: 12px;
}
.receipt-lines { display: grid; gap: 10px; }
.receipt-line { display: grid; grid-template-columns: 2fr .8fr .8fr .9fr .9fr; gap: 8px; }

@media (max-width: 980px) {
    body { background: #f2f2f3; padding-bottom: 76px; }
    .app-shell { display: block; min-height: 100vh; }
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: min(84vw, 320px);
        height: 100vh;
        z-index: 30;
        transform: translateX(-105%);
        transition: transform .2s ease;
        overflow-y: auto;
        box-shadow: 20px 0 40px rgba(0,0,0,.18);
    }
    body.menu-open .sidebar { transform: translateX(0); }
    .mobile-scrim {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,.38);
        z-index: 20;
        opacity: 0;
        pointer-events: none;
        transition: opacity .2s ease;
    }
    body.menu-open .mobile-scrim { opacity: 1; pointer-events: auto; }
    .sidebar nav { grid-template-columns: 1fr; }
    .main { padding: 14px; }
    .menu-toggle {
        display: grid;
        width: 42px;
        height: 42px;
        border: 0;
        border-radius: 8px;
        background: var(--black);
        place-items: center;
        padding: 10px;
        flex: 0 0 auto;
    }
    .menu-toggle span { display: block; width: 20px; height: 2px; background: #fff; border-radius: 2px; }
    .topbar {
        position: sticky;
        top: 0;
        z-index: 10;
        margin: -14px -14px 14px;
        padding: 12px 14px;
        background: rgba(247,247,248,.94);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--line);
        justify-content: flex-start;
    }
    .topbar h1 { font-size: 20px; }
    .userbar { margin-left: auto; }
    .userbar span { display: none; }
    .mobile-nav {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        position: fixed;
        left: 10px;
        right: 10px;
        bottom: 10px;
        z-index: 25;
        background: #111;
        color: #fff;
        border-radius: 8px;
        padding: 7px;
        box-shadow: 0 18px 38px rgba(0,0,0,.22);
    }
    .mobile-nav a {
        min-height: 42px;
        display: grid;
        place-items: center;
        border-radius: 7px;
        font-size: 12px;
        font-weight: 800;
    }
    .mobile-nav a.active { background: var(--orange); color: #111; }
    .stats-grid, .split, .split.three, .grid-form { grid-template-columns: 1fr 1fr; }
    .stat, .panel, .form-panel { padding: 14px; }
    .stat strong { font-size: 20px; }
    .receipt-line { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    .topbar { align-items: center; flex-direction: row; }
    .userbar { align-items: flex-start; flex-direction: column; }
    .sidebar nav, .stats-grid, .split, .split.three, .grid-form { grid-template-columns: 1fr; }
    .grid-form .wide { grid-column: auto; }
    .panel { overflow-x: auto; }
    table { min-width: 620px; }
    .warning-row { align-items: flex-start; flex-direction: column; }
    .toolbar { display: grid; grid-template-columns: 1fr 1fr; }
    .toolbar input, .toolbar .btn { max-width: none; width: 100%; }
    .export-toolbar { grid-template-columns: 1fr 1fr; }
    .inline-edit { grid-template-columns: 1fr; }
    .receipt-line { grid-template-columns: 1fr; border: 1px solid var(--line); border-radius: 8px; padding: 10px; }
}