/* Core Variables: Yellow, Black, White */
:root {
    --bg-yellow: #ffb800;
    --text-black: #1a1a1a;
    --card-white: #ffffff;
    --border-dark: #000000;
}

/* Base Styles & Anti-Zoom */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    touch-action: manipulation; /* Prevents double-tap zoom */
}

body {
    background-color: var(--bg-yellow);
    color: var(--text-black);
    padding-bottom: 50px;
}

.main-header {
    background-color: var(--border-dark);
    color: var(--card-white);
    text-align: center;
    padding: 20px;
    margin-bottom: 20px;
    text-transform: uppercase;
    font-style: italic;
    font-weight: 900;
}

.hidden { display: none !important; }

/* Cards & Layout */
main, .card {
    max-width: 600px;
    margin: 0 auto;
    padding: 15px;
}

.product-item, .order-item {
    background: var(--card-white);
    border: 3px solid var(--border-dark);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 4px 4px 0px var(--border-dark);
}

/* Typography */
h2, h3 { margin-bottom: 15px; text-transform: uppercase; font-weight: bold; }
p { margin-bottom: 10px; line-height: 1.4; }

/* Controls (Buttons & Inputs) */
input, textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 2px solid var(--border-dark);
    border-radius: 4px;
    font-size: 16px;
}

.btn {
    padding: 12px 20px;
    border: 2px solid var(--border-dark);
    border-radius: 4px;
    font-weight: bold;
    font-size: 16px;
    cursor: pointer;
    text-transform: uppercase;
    box-shadow: 2px 2px 0px var(--border-dark);
    transition: transform 0.1s;
}
.btn:active { transform: translate(2px, 2px); box-shadow: none; }

.block-btn { width: 100%; background: var(--text-black); color: var(--card-white); }
.submit-btn { background: #4CAF50; color: white; border-color: #2E7D32; }
.secondary-btn { background: var(--card-white); color: var(--text-black); }

/* Quantity Controls */
.qty-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 10px;
}
.qty-btn {
    width: 40px;
    height: 40px;
    font-size: 20px;
    background: var(--text-black);
    color: var(--card-white);
    border: none;
    border-radius: 4px;
}

/* Toast Message */
.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-black);
    color: var(--card-white);
    padding: 15px 20px;
    border-radius: 8px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 400px;
}
#close-toast {
    background: transparent;
    color: white;
    border: 1px solid white;
    padding: 5px 10px;
    cursor: pointer;
    font-weight: bold;
}

/* QR Code Section */
.qr-section { text-align: center; margin: 20px 0; background: white; padding: 20px; border: 3px solid black; }
.qr-placeholder { width: 200px; height: 200px; background: #eee; border: 2px dashed #999; margin: 0 auto 10px; display: flex; align-items: center; justify-content: center; font-weight: bold;}
.button-group { display: flex; gap: 10px; }
.button-group .btn { flex: 1; }

.admin-tabs { display: flex; gap: 10px; margin-bottom: 20px; }
.admin-tabs .active { background: var(--text-black); color: var(--card-white); }