/* ============================================
   Factory V2 - Clean Design
   ============================================ */
:root {
    --primary: #0891b2;
    --primary-dark: #0e7490;
    --accent: #d4a017;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg: #f1f5f9;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
}

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

body {
    font-family: 'Segoe UI', 'Tahoma', 'Cairo', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

/* LOGIN */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #0891b2 100%);
    padding: 20px;
}
.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    max-width: 420px;
    width: 100%;
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
}
.logo-section {
    text-align: center;
    margin-bottom: 32px;
}
.logo-icon {
    font-size: 4rem;
    margin-bottom: 12px;
}
.logo-section h1 {
    color: var(--text);
    font-size: 1.8rem;
    margin-bottom: 4px;
}
.logo-section p {
    color: var(--text-light);
}
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text);
    font-size: 0.9rem;
}
.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}
.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}
.btn-login {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.2s;
    font-family: inherit;
}
.btn-login:hover { background: var(--primary-dark); }
.error-msg {
    color: var(--danger);
    text-align: center;
    margin-top: 12px;
    font-size: 0.9rem;
    min-height: 20px;
}
.demo-users {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.demo-title {
    text-align: center;
    color: var(--text-light);
    font-size: 0.85rem;
    margin-bottom: 12px;
}
.demo-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
}
.demo-btn {
    padding: 10px 6px;
    border: 1px solid var(--border);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.75rem;
    text-align: center;
    transition: all 0.2s;
}
.demo-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.demo-btn span { font-size: 1.5rem; display: block; }
.demo-btn.admin { border-color: #dc2626; color: #dc2626; }
.demo-btn.sup { border-color: #7c3aed; color: #7c3aed; }
.demo-btn.op { border-color: #10b981; color: #10b981; }

/* APP LAYOUT */
.app-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}
.sidebar {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    color: white;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
}
.sidebar-brand {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
    margin-bottom: 16px;
}
.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}
.user-name {
    font-weight: 700;
    font-size: 0.95rem;
}
.user-role {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
}
.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s;
    font-size: 0.95rem;
}
.nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: white;
}
.nav-item.active {
    background: var(--primary);
    color: white;
}
.nav-icon { font-size: 1.1rem; }
.btn-logout {
    background: rgba(239,68,68,0.1);
    color: #fca5a5;
    border: 1px solid rgba(239,68,68,0.3);
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-family: inherit;
    margin-top: 16px;
}
.btn-logout:hover { background: var(--danger); color: white; }

.main-content {
    padding: 32px;
    overflow-y: auto;
}
.main-content h1 {
    font-size: 1.8rem;
    margin-bottom: 24px;
    color: var(--text);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}
.page-header h1 { margin: 0; }

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-family: inherit;
    font-size: 0.95rem;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-success {
    background: var(--success);
    color: white;
    border: none;
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    font-family: inherit;
}

/* KPI */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.kpi-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border-right: 4px solid;
}
.kpi-icon {
    font-size: 2rem;
    width: 50px;
    text-align: center;
}
.kpi-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text);
}
.kpi-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* CARDS */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    margin-bottom: 16px;
    overflow: hidden;
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: #f8fafc;
}
.card-header h2 { font-size: 1.05rem; }
.card-body { padding: 20px; }

/* ZONES */
.zone-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: #f8fafc;
    border-radius: 8px;
    margin-bottom: 8px;
    border-right: 3px solid var(--success);
}
.zone-row.alert { border-right-color: var(--danger); background: rgba(239,68,68,0.05); }
.zone-temp {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary);
}
.zone-target { color: var(--text-light); font-size: 0.85rem; }

.zones-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}
.zone-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.zone-card h3 { font-size: 1rem; margin-bottom: 12px; }
.zone-temp-big {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin: 8px 0;
}
.zone-card p { color: var(--text-light); font-size: 0.9rem; }

/* ORDERS */
.orders-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.order-card {
    background: white;
    border-radius: 10px;
    padding: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    border-right: 4px solid var(--primary);
}
.order-card .badge-progress { border-color: var(--warning); }
.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}
.order-body {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
    font-size: 0.9rem;
    margin-bottom: 12px;
}
.order-body span { color: var(--text-light); }
.order-actions {
    display: flex;
    gap: 8px;
}
.badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-progress { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-pending { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-done { background: rgba(16,185,129,0.15); color: var(--success); }

/* DATA TABLE */
.data-table {
    width: 100%;
    border-collapse: collapse;
}
.data-table th {
    background: #f8fafc;
    padding: 12px;
    text-align: right;
    font-weight: 700;
    font-size: 0.85rem;
}
.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}
.data-table tr.row-warning { background: rgba(245,158,11,0.05); }
.data-table tr.row-warning td { color: #b45309; }

/* PRODUCTS */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}
.product-card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
.product-card h3 { margin-bottom: 12px; }
.product-stats { display: flex; gap: 12px; }
.product-stats > div {
    flex: 1;
    background: #f8fafc;
    padding: 8px;
    border-radius: 6px;
    text-align: center;
}
.product-stats span { color: var(--text-light); font-size: 0.8rem; display: block; }
.product-stats strong { color: var(--text); }

.error {
    background: rgba(239,68,68,0.1);
    color: var(--danger);
    padding: 16px;
    border-radius: 8px;
    text-align: center;
}

/* MOBILE */
@media (max-width: 768px) {
    .app-layout { grid-template-columns: 1fr; }
    .sidebar { padding: 12px; }
    .sidebar-brand { display: none; }
    .sidebar-user { margin-bottom: 12px; }
    .sidebar-nav { flex-direction: row; flex-wrap: wrap; }
    .nav-item { padding: 8px 12px; font-size: 0.85rem; }
    .nav-label { display: none; }
    .main-content { padding: 16px; }
    .order-body { grid-template-columns: 1fr; gap: 4px; }
    .demo-buttons { grid-template-columns: 1fr 1fr 1fr; }
}