@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap');

:root {
    --bg: #050505;
    --card-bg: #111;
    --text: #fff;
    --text-dim: #888;
    --primary: #8b5cf6; /* Electric Purple */
    --primary-hover: #7c3aed;
    --success: #10b981; /* Neon Green */
    --danger: #ef4444;
    --border: #222;
}

* { box-sizing: border-box; margin: 0; padding: 0; outline: none; }

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 40px;
}

.container {
    max-width: 600px; /* Mobile First Constraint */
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

h1 { font-weight: 800; font-size: 1.5rem; letter-spacing: -0.5px; }
.nav-link { color: var(--text-dim); text-decoration: none; font-size: 0.9rem; }

/* Stats Grid */
.stats-container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card-bg);
    padding: 15px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border);
}

.stat-value { font-size: 1.2rem; font-weight: 800; color: var(--success); }
.stat-label { font-size: 0.7rem; color: var(--text-dim); text-transform: uppercase; margin-top: 5px; }

/* Admin Sections */
.admin-section {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid var(--border);
    margin-bottom: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

h3 { font-size: 1rem; margin-bottom: 15px; color: var(--text); border-bottom: 1px solid var(--border); padding-bottom: 10px; }

/* Forms */
.form-group { margin-bottom: 12px; }
label { display: block; font-size: 0.8rem; color: var(--text-dim); margin-bottom: 4px; }
input {
    width: 100%;
    background: #000;
    border: 1px solid var(--border);
    color: #fff;
    padding: 12px;
    border-radius: 8px;
    font-size: 1rem;
    transition: border 0.2s;
}
input:focus { border-color: var(--primary); }

/* Buttons */
.btn, .btn-primary, .btn-outline {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: transform 0.1s, opacity 0.2s;
}
.btn:active { transform: scale(0.98); }

.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-hover)); color: white; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text-dim); }

/* Tables (Desktop) vs Cards (Mobile) */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 0.7rem; color: var(--text-dim); padding-bottom: 10px; text-transform: uppercase; }
td { padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
tr:last-child td { border-bottom: none; }

/* Mobile Optimizations for Tables */
@media (max-width: 480px) {
    /* Hide non-essential columns on mobile */
    th:nth-child(3), td:nth-child(3) { display: none; } /* Hide Cost/Home Stock */
}

/* Modals */
.modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: none;
    align-items: center; justify-content: center;
    animation: fadeIn 0.2s;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal-content {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 20px;
    width: 90%;
    max-width: 320px;
    border: 1px solid var(--border);
    text-align: center;
}

/* Utility */
.margin-high { color: var(--success); }
.margin-mid { color: #facc15; }
.margin-low { color: var(--danger); }

#dad-banner { border-bottom: 1px solid rgba(255,255,255,0.1); }