/* =========================================
   IntelliFactory - Core Styling
   Theme: Clean Industrial White
========================================= */

:root {
    --primary: #2563eb;     /* Professional Blue */
    --danger: #ef4444;      /* Red */
    --warning: #f59e0b;     /* Orange/Yellow */
    --success: #10b981;     /* Green */
    --bg-color: #f1f5f9;    /* Light Grayish Blue Background */
    --card-bg: #ffffff;     /* Crisp White */
    --text-main: #1e293b;   /* Dark Slate */
    --text-muted: #64748b;  /* Light Slate */
    --border: #e2e8f0;      /* Subtle Gray */
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 20px 40px;
    line-height: 1.5;
}

h1, h2, h3 {
    margin-top: 0;
}

h1 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 30px;
    font-weight: 700;
}

/* --- NAVIGATION --- */
nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

nav button {
    background-color: var(--card-bg);
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

nav button:hover {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* --- GRID & CARDS --- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.full-width {
    grid-column: 1 / -1;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

/* --- BADGES & STATUS INDICATORS --- */
.status-badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: white;
    letter-spacing: 0.5px;
}

.status-running { background-color: var(--success); }
.status-idle { background-color: var(--warning); }
.status-fault { background-color: var(--danger); color: white;}

/* --- INPUTS & CONTROLS --- */
input[type="number"], select {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    color: var(--text-main);
    outline: none;
    transition: border-color 0.2s;
}

input[type="number"]:focus, select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

button {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
}

/* --- ALERTS --- */
.alert-box {
    background-color: #fee2e2;
    border-left: 4px solid var(--danger);
    color: #991b1b;
    padding: 12px 16px;
    border-radius: 0 6px 6px 0;
    margin-top: 15px;
    font-weight: 600;
}