/* PREMIUM DESIGN SYSTEM - Kitchen Cost Control */
:root {
    --bg-dark: #0f172a; /* Slate 900 */
    --bg-card: rgba(30, 41, 59, 0.7); /* Slate 800 - Glass */
    --primary: #38bdf8; /* Sky 400 */
    --secondary: #a855f7; /* Purple 500 */
    --accent: #f472b6; /* Pink 400 */
    --text-main: #f8fafc; /* Slate 50 */
    --text-muted: #94a3b8; /* Slate 400 */
    --border: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(12px);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    margin: 0;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(56, 189, 248, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(168, 85, 247, 0.1) 0%, transparent 40%);
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur); /* Safari */
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.glass-header {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

/* Layout */
.layout-wrapper {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.topbar {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
}

.content-area {
    padding: 32px;
}

/* Typography */
h1, h2, h3, h4, h5 { margin: 0; font-weight: 600; letter-spacing: -0.025em; }
h1 { font-size: 2rem; background: linear-gradient(to right, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.text-muted { color: var(--text-muted); }

/* Navigation */
.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 12px;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
    margin-bottom: 4px;
    font-weight: 500;
}
.nav-link:hover, .nav-link.active {
    background: rgba(56, 189, 248, 0.1);
    color: var(--primary);
}
.nav-link i { font-size: 1.25rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
    gap: 8px;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(56, 189, 248, 0.4); }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--text-main); color: var(--text-main); }

/* Data Tables */
.table-container { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 16px; color: var(--text-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; border-bottom: 1px solid var(--border); }
td { padding: 16px; vertical-align: middle; border-bottom: 1px solid rgba(255,255,255,0.05); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Forms */
.form-group { margin-bottom: 20px; }
.form-label { display: block; margin-bottom: 8px; color: var(--text-muted); font-size: 0.9rem; }
.form-control {
    width: 100%;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border);
    padding: 12px 16px;
    border-radius: 10px;
    color: var(--text-main);
    font-family: inherit;
    transition: var(--transition);
    box-sizing: border-box; /* Fix width issues */
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1); }

/* Stats Cards */
.stat-card { padding: 24px; position: relative; overflow: hidden; }
.stat-value { font-size: 2.5rem; font-weight: 700; margin: 8px 0; }
.stat-label { color: var(--text-muted); font-size: 0.9rem; }
.stat-icon { position: absolute; right: 20px; bottom: 20px; font-size: 4rem; opacity: 0.05; }