:root {
    --ink: #1b2430;
    --ink-soft: #4a5568;
    --paper: #f5f6f8;
    --card: #ffffff;
    --line: #e2e5eb;
    --brand: #2f5d50;      /* deep pine green - warehouse/ledger feel */
    --brand-dark: #234840;
    --accent: #c17a3d;      /* warm copper accent */
    --good: #2f7a4f;
    --warn: #b8860b;
    --danger: #b1403a;
    --sidebar-w: 220px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: 'Segoe UI', -apple-system, Roboto, Arial, sans-serif;
    background: var(--paper);
    color: var(--ink);
    font-size: 14.5px;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-shell { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
    width: var(--sidebar-w);
    background: linear-gradient(180deg, var(--brand-dark), var(--brand));
    color: #eef3f1;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    padding: 18px 0;
}
.sidebar .brand {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: .04em;
    padding: 0 20px 18px;
    border-bottom: 1px solid rgba(255,255,255,.15);
    margin-bottom: 10px;
}
.sidebar .brand small { display:block; font-weight:400; opacity:.75; font-size:.7rem; margin-top:2px;}
.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #e4ece9;
    padding: 10px 20px;
    font-size: .92rem;
    border-left: 3px solid transparent;
}
.sidebar nav a:hover, .sidebar nav a.active {
    background: rgba(255,255,255,.08);
    border-left-color: var(--accent);
    text-decoration: none;
}
.sidebar .user-box {
    margin-top: auto;
    padding: 14px 20px;
    border-top: 1px solid rgba(255,255,255,.15);
    font-size: .82rem;
}
.sidebar .user-box .role-badge {
    display:inline-block; margin-top:4px; padding:1px 8px; border-radius:10px;
    background: rgba(255,255,255,.15); font-size:.7rem; text-transform:uppercase; letter-spacing:.05em;
}

/* Main */
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
    background: var(--card);
    border-bottom: 1px solid var(--line);
    padding: 14px 26px;
    display: flex; align-items: center; justify-content: space-between;
}
.topbar h1 { font-size: 1.15rem; margin: 0; font-weight: 700; }
.content { padding: 24px 26px; }

/* Cards / stats */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px,1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
    background: var(--card); border: 1px solid var(--line); border-radius: 10px;
    padding: 16px 18px; border-top: 3px solid var(--brand);
}
.stat-card .label { font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); }
.stat-card .value { font-size: 1.6rem; font-weight: 700; margin-top: 4px; }
.stat-card.accent { border-top-color: var(--accent); }
.stat-card.warn { border-top-color: var(--warn); }

.card {
    background: var(--card); border: 1px solid var(--line); border-radius: 10px;
    padding: 20px 22px; margin-bottom: 22px;
}
.card h2 { font-size: 1rem; margin: 0 0 14px; }

/* Tables */
table.data { width: 100%; border-collapse: collapse; font-size: .88rem; }
table.data th {
    text-align: left; padding: 10px 12px; background: #eef1ee; color: var(--ink-soft);
    font-weight: 600; text-transform: uppercase; font-size: .72rem; letter-spacing: .04em;
    border-bottom: 1px solid var(--line);
}
table.data td { padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.data tr:hover td { background: #f7f9f7; }
.badge { display:inline-block; padding:2px 9px; border-radius: 20px; font-size:.72rem; font-weight:600; }
.badge.finished_goods { background:#e4efe9; color: var(--good); }
.badge.raw_material { background:#fbeee0; color: var(--accent); }
.badge.purchase { background:#e6eef6; color:#2a5c8a; }
.badge.donation { background:#f1e6f6; color:#7a3a9c; }
.badge.stock_out { background:#f6e6e6; color: var(--danger); }
.badge.adjustment { background:#f2f2ee; color:#6b6b55; }
.low-stock { color: var(--danger); font-weight: 700; }

/* Forms */
label { display:block; font-size:.82rem; font-weight:600; margin-bottom:5px; color: var(--ink-soft); }
input, select, textarea {
    width: 100%; padding: 9px 11px; border: 1px solid var(--line); border-radius: 7px;
    font-size: .9rem; font-family: inherit; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
.form-row { margin-bottom: 14px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 720px) { .form-grid { grid-template-columns: 1fr; } .app-shell{flex-direction:column;} .sidebar{width:100%;} }

.btn {
    display: inline-block; padding: 9px 18px; border-radius: 7px; border: none;
    background: var(--brand); color: #fff; font-weight: 600; font-size: .88rem; cursor: pointer;
}
.btn:hover { background: var(--brand-dark); text-decoration:none; }
.btn.secondary { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn.danger { background: var(--danger); }
.btn.small { padding: 5px 11px; font-size: .78rem; }
.btn.accent { background: var(--accent); }

.actions-bar { display:flex; justify-content: space-between; align-items:center; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.filters { display:flex; gap: 10px; flex-wrap: wrap; align-items:end; }
.filters .form-row { margin-bottom: 0; min-width: 150px; }

.flash { padding: 11px 16px; border-radius: 8px; margin-bottom: 18px; font-size: .9rem; }
.flash.success { background: #e5f3ea; color: var(--good); border: 1px solid #bfe3cb; }
.flash.error { background: #fbe9e8; color: var(--danger); border: 1px solid #f2c6c3; }

/* Login page */
.login-wrap { min-height: 100vh; display:flex; align-items:center; justify-content:center; background: linear-gradient(160deg, var(--brand-dark), var(--brand)); }
.login-box { background: #fff; border-radius: 12px; padding: 34px 34px 28px; width: 340px; box-shadow: 0 20px 45px rgba(0,0,0,.25); }
.login-box .brand-title { text-align:center; font-weight:700; font-size:1.2rem; color: var(--brand-dark); margin-bottom: 4px; }
.login-box .brand-sub { text-align:center; font-size:.78rem; color: var(--ink-soft); margin-bottom: 22px; }
.login-box .btn { width: 100%; margin-top: 6px; }

.text-right { text-align: right; }
.muted { color: var(--ink-soft); font-size: .82rem; }
.empty-state { text-align:center; padding: 40px 20px; color: var(--ink-soft); }