/* Import a modern, highly readable Google Font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    /* Brand Colors - Warm Milk Tea & Boba Tones */
    --primary: #D97736;       /* Warm Amber/Tea accent */
    --primary-hover: #bf662b;
    --dark-boba: #2C2520;     /* Deep brown-black for text */
    --surface: #ffffff;
    --bg-color: #f7f5f3;      /* Very soft warm off-white background */
    --border-color: #e5e7eb;
    
    /* Utility Colors */
    --success: #10b981;
    --success-hover: #059669;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --info: #3b82f6;
    --info-hover: #2563eb;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--dark-boba);
    margin: 0;
    padding: 40px 20px;
    line-height: 1.6;
}

/* The Main App Window */
.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--surface);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 25px -5px rgba(44, 37, 32, 0.08), 0 8px 10px -6px rgba(44, 37, 32, 0.04);
}

/* Header & Typography */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--bg-color);
    padding-bottom: 20px;
    margin-bottom: 30px;
}

h2, h3 {
    color: var(--dark-boba);
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Modern Form Inputs */
input[type="text"], input[type="number"], input[type="password"], select, textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    transition: all 0.2s ease;
    background-color: #fafafa;
    box-sizing: border-box;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    background-color: #fff;
    box-shadow: 0 0 0 3px rgba(217, 119, 54, 0.15);
}

/* Beautiful Buttons */
.btn {
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s ease;
    text-align: center;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Button Variants */
.btn-submit, .btn-add { background-color: var(--primary); color: white; }
.btn-submit:hover, .btn-add:hover { background-color: var(--primary-hover); }

.btn-logout, .btn-remove { background-color: var(--danger); color: white; }
.btn-logout:hover, .btn-remove:hover { background-color: var(--danger-hover); }

.btn-add-ing { background-color: var(--info); color: white; }
.btn-add-ing:hover { background-color: var(--info-hover); }

.btn-back { background-color: var(--bg-color); color: var(--dark-boba); border: 1px solid var(--border-color); }
.btn-back:hover { background-color: var(--border-color); color: var(--dark-boba); }

/* Clean Data Tables */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 20px 0 30px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

th {
    background-color: #f9fafb;
    padding: 14px 16px;
    font-weight: 600;
    text-align: left;
    color: #4b5563;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

tr:last-child td { border-bottom: none; }
tbody tr:hover { background-color: #f8fafc; }

/* Badges & Accents */
.badge {
    background-color: var(--primary);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.scale-box {
    background-color: #fff8f3;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #f2e2d5;
    border-left: 5px solid var(--primary);
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.instructions-box {
    background-color: #fafafa;
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    line-height: 1.8;
    white-space: pre-wrap;
}

/* --- PRINT STYLES --- */
@media print {
    body, .container { background-color: #fff !important; box-shadow: none !important; margin: 0; padding: 0; max-width: 100%; border-radius: 0; }
    .btn, .header a, form { display: none !important; }
    .scale-box { background: none !important; border: none !important; padding: 0 !important; margin-bottom: 20px; }
    .scale-box input { border: none; font-size: inherit; font-family: inherit; font-weight: bold; width: auto; pointer-events: none; }
    .cost-column { display: none !important; }
}