/* ===== Root Variables ===== */
:root {
    --bg-color: #f4f4f9;
    --text-color: #333;
    --card-color: #fff;
    --header-color: #d4393a;
}

/* ===== Global Styles ===== */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    font-size: 16px;
}
* { box-sizing: border-box; }

.container {
    width: 80%;
    margin: auto;
}

.head {
    color: var(--header-color);
    text-align: center;
    text-transform: uppercase;
    margin: 10px 0;
}

/* ===== Inputs ===== */
input {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    border: none;
    outline: none;
    background-color: var(--card-color);
    color: var(--text-color);
}

input::placeholder { color: var(--text-color); opacity: 0.7; }
input:focus { background-color: #ffeaea; color: var(--header-color); transform: scale(1.02); }

.price input { width: 20%; }

/* ===== Total Box ===== */
#total {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
    background-color: var(--header-color);
    color: #fff;
    cursor: pointer;
    padding: 10px;
    border-radius: 4px;
}

#total:hover { background-color: #b72a2b; }
small::before { content: 'Total 💰:'; }

/* ===== Buttons ===== */
button {
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    border: none;
    outline: none;
    background-color: var(--header-color);
    color: #fff;
    cursor: pointer;
    text-transform: uppercase;
    border-radius: 20px;
    transition: all 0.3s ease;
}

button:hover { background-color: #b72a2b; letter-spacing: 1px; }

/* زرار البحث */
.btnsearch { display: flex; justify-content: space-between; gap: 5px; }
.btnsearch button { flex: 1; }

/* ===== Table ===== */
.table-container { width: 100%; overflow-x: auto; }
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
    border-radius: 8px;
}

table thead th { background-color: var(--header-color); color: #fff; padding: 12px; text-transform: uppercase; }
th, td { border-bottom: 1px solid #ddd; padding: 8px; word-break: break-word; max-width: 150px; text-align: center; }

table tbody #emptyRow { text-align: center; font-size: 1.5rem; font-weight: 700; padding: 40px 10px; color: #444; }

/* ===== أزرار Update/Delete ثابتة ومتغيرة حسب الشاشة ===== */
#update, #delete { width: 100px; padding: 8px 12px; font-size: 14px; }
@media (max-width: 1024px) { #update, #delete { width: 80px; font-size: 12px; padding: 6px 10px; } }
@media (max-width: 768px) { #update, #delete { width: 60px; font-size: 11px; padding: 4px 8px; } }

/* ===== Responsive للصفحة ===== */
@media (min-width: 1600px) { .container { width: 70%; } }
@media (min-width: 1400px) and (max-width: 1599px) { .container { width: 75%; } }
@media (max-width: 1024px) { .container { width: 90%; } }
@media (max-width: 768px) { .container { width: 95%; font-size: 13px; } }
@media (max-width: 576px) { .container { width: 100%; font-size: 12px; } }
@media (max-width: 320px) { .container { width: 100%; font-size: 11px; } }