:root {
    --bg-main: #0f172a;
    --card-bg: #1e293b;
    --accent-blue: #38bdf8;
    --accent-warning: #f59e0b;
    --text-primary: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    padding: 30px;
    min-height: 100vh;
}

.app-container {
    max-width: 1100px;
    margin: 0 auto;
}

/* Header Styling */
.main-header {
    margin-bottom: 30px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo h2 {
    font-size: 1.8rem;
    font-weight: 700;
}

.logo h2 span {
    color: var(--accent-blue);
}

.badge {
    background: rgba(56, 189, 248, 0.15);
    color: var(--accent-blue);
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 12px;
    font-weight: 600;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 4px;
}

/* KPI Cards Layout */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.kpi-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 22px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.kpi-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
}

.kpi-value {
    font-size: 2.2rem;
    font-weight: 700;
    margin: 8px 0;
    color: var(--accent-blue);
}

.kpi-card.warning .kpi-value {
    color: var(--accent-warning);
}

.kpi-subtext {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Data Table Card Styling */
.content-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.card-header h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Status Badges */
.status-badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
}

.status-ok {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
}

.status-low {
    background: rgba(245, 158, 11, 0.15);
    color: #fcd34d;
}/* Form Section Styling */
.form-section {
    margin-bottom: 30px;
}

.product-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) auto;
    gap: 16px;
    align-items: end;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-group label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

.input-group input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 10px 14px;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
}

.input-group input:focus {
    border-color: var(--accent-blue);
}

.btn-primary {
    background: var(--accent-blue);
    color: #0f172a;
    border: none;
    padding: 11px 20px;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
}/* Search Bar Styling */
.search-container {
    margin-bottom: 20px;
}

.search-container input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
}

.search-container input:focus {
    border-color: var(--accent-blue);
}/* Delete Button Styling */
.btn-delete {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-delete:hover {
    background: rgba(239, 68, 68, 0.3);
}

table th:last-child, table td:last-child {
    text-align: center;
} *
.btn-delete {
    display: none;
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
}

tr:hover .btn-delete {
    display: inline-block;
}

.btn-delete:hover {
    background: rgba(239, 68, 68, 0.3);
}