:root {
    --di-bg: #0f1113;
    --di-surface: #181a1d;
    --di-surface-alt: #222528;
    --di-border: #2e3236;
    --di-text: #e5e7ea;
    --di-muted: #9aa0a6;
    --di-accent: #ffb347;
    --di-accent-hover: #ff9d17;
    --di-radius: 6px;
    --di-focus: 0 0 0 2px rgba(255,179,71,0.35);
    font-family: 'Segoe UI', Arial, sans-serif;
}

body {
    background: var(--di-bg);
    color: var(--di-text);
}

.di-wrapper {
    max-width: 1180px;
    margin: 32px auto 64px;
    padding: 0 20px;
}

.di-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 28px;
}

@media (max-width: 980px) {
    .di-grid { grid-template-columns: 1fr; }
}

.di-product-pane {
    position:static;
    top: 24px;
    align-self: start;
}

.di-product-card {
    background: var(--di-surface);
    border: 1px solid var(--di-border);
    border-radius: var(--di-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.di-product-img {
    width: 100%;
    aspect-ratio: 4/5;
    background: #101214;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.di-product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.di-noimg {
    color: var(--di-muted);
    font-size: 14px;
    padding: 12px;
    text-align: center;
}

.di-product-info {
    padding: 18px 20px 22px;
}
.di-product-name {
    margin: 0 0 4px;
    font-size: 20px;
    font-weight: 600;
    line-height: 1.25;
}
.di-product-price {
    font-size: 18px;
    font-weight: 600;
    color: var(--di-accent);
    margin-bottom: 12px;
}
.di-product-attrs {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 13px;
    display: grid;
    gap: 4px;
}
.di-product-attrs li span {
    color: var(--di-muted);
    margin-right: 4px;
}

.di-form-pane {
    background: var(--di-surface);
    border: 1px solid var(--di-border);
    border-radius: var(--di-radius);
    padding: 0;
    display: flex;
    flex-direction: column;
}

.di-tabs {
    display: flex;
    background: var(--di-surface-alt);
    border-bottom: 1px solid var(--di-border);
    border-radius: var(--di-radius) var(--di-radius) 0 0;
    overflow: hidden;
}
.di-tab {
    flex: 0 0 auto;
    background: transparent;
    border: none;
    color: var(--di-muted);
    padding: 14px 28px;
    font-size: 14px;
    cursor: pointer;
    position: relative;
    display: flex;
    gap: 8px;
    align-items: center;
    transition: background .15s;
}
.di-tab[disabled] {
    cursor: not-allowed;
    opacity: .55;
}
.di-tab.active {
    color: var(--di-text);
    background: var(--di-surface);
    border-bottom: 2px solid var(--di-accent);
    font-weight: 600;
}
.di-tab:not(.active):hover:not([disabled]) {
    background: #1d2023;
    color: var(--di-text);
}
.di-tab-icon { font-size: 16px; }

.di-form {
    padding: 28px 30px 34px;
    display: grid;
    gap: 18px;
}

.di-inline {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(220px,1fr));
    gap: 18px;
}

.di-field-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.di-label {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .2px;
    color: var(--di-muted);
    text-transform: none;
}

.di-input,
.di-select,
.di-form textarea {
    background: #262a2e;
    border: 1px solid #363c41;
    color: var(--di-text);
    font-size: 14px;
    padding: 10px 12px;
    border-radius: var(--di-radius);
    outline: none;
    transition: border-color .15s, background .15s, box-shadow .15s;
    width: 100%;
    resize: vertical;
    min-height: 42px;
}
.di-input:focus,
.di-select:focus,
.di-form textarea:focus {
    border-color: var(--di-accent);
    box-shadow: var(--di-focus);
    background: #2d3236;
}

.di-form textarea {
    min-height: 140px;
}

.di-val {
    font-size: 12px;
    color: #ff6b6b;
    margin-top: -4px;
}

.di-actions {
    display: flex;
    gap: 12px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.btn-zahialah.di-submit {
    background: var(--di-accent);
    color: #111;
    font-weight: 600;
    padding: 12px 24px;
    border: none;
    border-radius: var(--di-radius);
    cursor: pointer;
    transition: background .15s, transform .15s;
}
.btn-zahialah.di-submit:hover {
    background: var(--di-accent-hover);
}
.btn-zahialah.di-submit:active {
    transform: translateY(1px);
}

.di-back {
    background: #2a2e32;
    color: var(--di-text);
    padding: 12px 20px;
    border-radius: var(--di-radius);
    text-decoration: none;
    font-size: 14px;
    transition: background .15s;
}
.di-back:hover {
    background: #34393d;
}

.di-hidden-bound {
    display: none;
}

.di-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(220px,1fr));
    gap: 14px;
    margin: 0 0 18px 0;
}
.di-summary-item {
    background: #1f2225;
    border: 1px solid #2e3235;
    border-radius: 10px;
    padding: 12px 14px;
    box-shadow: 0 4px 12px rgba(0,0,0,.35);
}
.di-summary-label {
    display:block;
    font-size:.78rem;
    font-weight:600;
    letter-spacing:.5px;
    color:#9aa0a6;
    margin-bottom:4px;
}
.di-summary-val {
    font-size:1.05rem;
    font-weight:600;
    color:#e5e7ea;
    font-variant-numeric:tabular-nums;
}
@media (max-width:640px){
    .di-summary { grid-template-columns: 1fr; }
}