* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #0f172a;
    color: white;
}

.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: #1e293b;
    padding: 36px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25);
}

.login-card h1 {
    margin-bottom: 8px;
}

.login-card p {
    margin-bottom: 18px;
    color: #94a3b8;
}

.login-error {
    color: #f87171;
    margin-top: 14px;
    min-height: 20px;
}

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

.sidebar {
    width: 270px;
    background: #111827;
    padding: 20px;
    transition: width 0.3s ease;
    border-right: 1px solid #1f2937;
}

.sidebar.collapsed {
    width: 88px;
}

.sidebar.collapsed .nav-item span,
.sidebar.collapsed .logo-area h1,
.sidebar.collapsed .logo-area p,
.sidebar.collapsed .sidebar-footer span {
    display: none;
}

.logo-area {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 26px;
}

.role-pill {
    display: inline-block;
    margin-top: 8px;
    padding: 4px 10px;
    background: #1f2937;
    border-radius: 999px;
    font-size: 12px;
    color: #cbd5e1;
}

.toggle-btn {
    width: 44px;
    background: #1e293b;
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    border: none;
    border-radius: 10px;
    background: #1f2937;
    color: white;
    cursor: pointer;
    transition: 0.2s ease;
    text-align: left;
}

.nav-item:hover {
    background: #374151;
    transform: translateX(5px);
}

.nav-item.active {
    background: #2563eb;
    border-left: 4px solid white;
}

.sidebar-footer {
    margin-top: 24px;
    display: grid;
    gap: 10px;
}

.pdf-btn {
    background: #10b981;
}

.logout-btn {
    background: #ef4444;
}

.main {
    flex: 1;
    padding: 24px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.view-section {
    display: none;
}

.active-section {
    display: block;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 18px;
}

.stat-card,
.card,
.table-card {
    background: #1e293b;
    padding: 18px;
    border-radius: 14px;
}

.stat-card h2 {
    margin-top: 8px;
    font-size: 1.8rem;
}

.forms-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 18px;
}

.wide {
    grid-column: span 2;
}

input,
textarea,
button,
select {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    border-radius: 8px;
    border: 1px solid #334155;
    background: #0f172a;
    color: white;
}

textarea {
    resize: vertical;
    min-height: 120px;
}

button {
    border: none;
    cursor: pointer;
    background: #2563eb;
}

button:hover {
    opacity: 0.92;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 14px;
}

th,
td {
    padding: 12px;
    border-bottom: 1px solid #334155;
    text-align: left;
    vertical-align: top;
}

.low {
    color: orange;
    font-weight: bold;
}

.ok {
    color: #22c55e;
    font-weight: bold;
}

.output-row,
.sales-row {
    background: #0f172a;
    padding: 10px;
    border-radius: 10px;
    border: 1px solid #334155;
    margin-top: 8px;
}

.output-row input,
.sales-row input {
    margin-top: 0 !important;
}

.add-row-btn {
    background: #10b981 !important;
    margin-top: 12px;
    width: auto;
    padding: 10px 18px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
}

.add-row-btn:hover {
    background: #059669 !important;
}

.form-hint {
    font-size: 13px;
    color: #64748b;
    margin-top: 10px;
    font-style: italic;
}

.direct-sale-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 10px;
    align-items: end;
}

.direct-sale-grid input,
.direct-sale-grid select {
    margin-top: 0;
}

select {
    font-size: 14px;
}

select:focus {
    outline: none;
    border-color: #2563eb;
}

code {
    background: #0f172a;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 12px;
    color: #94a3b8;
}

#toast {
    box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.6 !important;
}

.empty-state {
    text-align: center;
    color: #64748b;
    padding: 20px;
}

@media (max-width: 1100px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .forms-grid {
        grid-template-columns: 1fr;
    }

    .wide {
        grid-column: span 1;
    }

    .direct-sale-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

    .sidebar.collapsed {
        width: 100%;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .direct-sale-grid {
        grid-template-columns: 1fr;
    }
}