.kbooks-wrap,
.kbooks-single-details,
.kbooks-submit-form,
.kbooks-modal {
    --kb-primary: #1d4ed8;
    --kb-primary-dark: #1e3a8a;
    --kb-text: #172033;
    --kb-muted: #687085;
    --kb-border: #dfe4ec;
    --kb-bg: #f7f9fc;
    --kb-card: #fff;
    color: var(--kb-text);
    font-family: inherit;
}

.kbooks-wrap[dir="rtl"],
.kbooks-single-details[dir="rtl"],
.kbooks-submit-form[dir="rtl"],
.kbooks-modal[dir="rtl"] {
    text-align: right;
}

.kbooks-library-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin: 0 0 24px;
    padding: 22px 24px;
    border: 1px solid var(--kb-border);
    border-radius: 16px;
    background: linear-gradient(135deg, #eff6ff, #ffffff);
}

.kbooks-library-card h2 { margin: 0 0 6px; }
.kbooks-library-card p { margin: 0; color: var(--kb-muted); }
.kbooks-phone { font-weight: 700; white-space: nowrap; }

.kbooks-filter,
.kbooks-submit-form {
    display: grid;
    gap: 16px;
    padding: 20px;
    border: 1px solid var(--kb-border);
    border-radius: 16px;
    background: var(--kb-card);
    box-shadow: 0 12px 35px rgba(15, 23, 42, .06);
}

.kbooks-filter {
    grid-template-columns: minmax(0, 2fr) minmax(180px, 1fr) auto;
    align-items: end;
    margin-bottom: 24px;
}

.kbooks-filter label,
.kbooks-submit-form label,
.kbooks-modal label {
    display: grid;
    gap: 7px;
    font-weight: 600;
    font-size: 14px;
}

.kbooks-filter input,
.kbooks-filter select,
.kbooks-submit-form input,
.kbooks-submit-form select,
.kbooks-submit-form textarea,
.kbooks-modal input,
.kbooks-modal textarea {
    width: 100%;
    box-sizing: border-box;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid var(--kb-border);
    border-radius: 10px;
    background: #fff;
    color: var(--kb-text);
    font: inherit;
}

.kbooks-filter button,
.kbooks-order-button,
.kbooks-pdf-button,
.kbooks-submit-form button,
.kbooks-modal button[type="submit"] {
    min-height: 42px;
    padding: 9px 14px;
    border: 0;
    border-radius: 10px;
    background: var(--kb-primary);
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform .15s ease, background .15s ease;
}

.kbooks-pdf-button {
    border: 1px solid var(--kb-primary);
    background: #fff;
    color: var(--kb-primary);
}

.kbooks-filter button:hover,
.kbooks-order-button:hover,
.kbooks-submit-form button:hover,
.kbooks-modal button[type="submit"]:hover {
    background: var(--kb-primary-dark);
    transform: translateY(-1px);
}

.kbooks-pdf-button:hover {
    background: #eff6ff;
    transform: translateY(-1px);
}

.kbooks-grid {
    display: grid;
    grid-template-columns: repeat(var(--kbooks-columns, 4), minmax(0, 1fr));
    gap: 20px;
}

.kbooks-card {
    display: flex;
    width: 100%;
    max-width: 330px;
    min-width: 0;
    overflow: hidden;
    justify-self: center;
    flex-direction: column;
    border: 1px solid var(--kb-border);
    border-radius: 16px;
    background: var(--kb-card);
    box-shadow: 0 12px 35px rgba(15, 23, 42, .07);
}

.kbooks-cover {
    position: relative;
    display: grid;
    height: 255px;
    place-items: center;
    overflow: hidden;
    box-sizing: border-box;
    padding: 12px;
    background: var(--kb-bg);
}

.kbooks-cover img {
    display: block;
    width: auto;
    max-width: 100%;
    height: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 8px 22px rgba(15, 23, 42, .12);
    transition: transform .25s ease;
}
.kbooks-cover:hover img { transform: scale(1.02); }

.kbooks-placeholder {
    display: grid;
    place-items: center;
    width: 100%;
    height: 100%;
    font-size: 56px;
}

.kbooks-status {
    position: absolute;
    top: 12px;
    inset-inline-start: 12px;
    padding: 5px 9px;
    border-radius: 999px;
    background: #0f766e;
    color: #fff;
    font-size: 12px;
    font-weight: 800;
}
.kbooks-status--out_of_stock { background: #b91c1c; }
.kbooks-status--preorder { background: #9a3412; }

.kbooks-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 16px;
}
.kbooks-card h3 { margin: 0 0 8px; font-size: 18px; line-height: 1.35; }
.kbooks-card h3 a { color: inherit; text-decoration: none; }
.kbooks-author { margin: 0 0 9px; color: var(--kb-muted); font-weight: 600; }
.kbooks-excerpt { margin: 0 0 16px; color: var(--kb-muted); font-size: 14px; }
.kbooks-card-footer {
    display: grid;
    gap: 12px;
    margin-top: auto;
}
.kbooks-price { font-size: 17px; }
.kbooks-card-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}
.kbooks-card-actions > :only-child { grid-column: 1 / -1; }
.kbooks-order-button,
.kbooks-pdf-button { min-height: 40px; font-size: 13px; }

.kbooks-pagination ul { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; list-style: none; margin: 28px 0 0; padding: 0; }
.kbooks-pagination a,
.kbooks-pagination span { display: grid; place-items: center; min-width: 40px; min-height: 40px; padding: 0 10px; border: 1px solid var(--kb-border); border-radius: 9px; text-decoration: none; }
.kbooks-pagination .current { background: var(--kb-primary); border-color: var(--kb-primary); color: #fff; }
.kbooks-empty,
.kbooks-notice { padding: 18px; border: 1px solid var(--kb-border); border-radius: 12px; background: var(--kb-bg); }
.kbooks-notice--success { border-color: #86efac; background: #f0fdf4; }
.kbooks-notice--error { border-color: #fca5a5; background: #fef2f2; }

.kbooks-single-details {
    margin-top: 28px;
    padding: 24px;
    border: 1px solid var(--kb-border);
    border-radius: 16px;
    background: var(--kb-card);
}
.kbooks-single-details dl { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; margin: 0 0 20px; }
.kbooks-single-details dl > div { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--kb-border); }
.kbooks-single-details dt { font-weight: 700; }
.kbooks-single-details dd { margin: 0; color: var(--kb-muted); text-align: end; }
.kbooks-buy-address { margin-bottom: 20px; padding: 16px; border-radius: 12px; background: var(--kb-bg); }
.kbooks-buy-address p { margin: 6px 0 0; }
.kbooks-single-actions { display: flex; flex-wrap: wrap; gap: 10px; }

.kbooks-submit-form { max-width: 820px; margin: 0 auto; }
.kbooks-submit-form h2 { margin: 0; }
.kbooks-form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }

.kbooks-modal[hidden] { display: none !important; }
.kbooks-modal {
    position: fixed !important;
    inset: 0 !important;
    z-index: 2147483647 !important;
    display: grid;
    align-items: start;
    justify-items: center;
    box-sizing: border-box;
    padding: max(20px, 4vh) 20px 20px;
    isolation: isolate;
}
.kbooks-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, .78);
    backdrop-filter: blur(2px);
}
.kbooks-modal-dialog {
    position: relative;
    z-index: 2;
    width: min(560px, 100%);
    max-height: calc(100vh - max(40px, 8vh));
    overflow: auto;
    box-sizing: border-box;
    padding: 26px;
    border-radius: 18px;
    background: #fff;
    color: var(--kb-text);
    box-shadow: 0 30px 80px rgba(0, 0, 0, .34);
}
.kbooks-modal-dialog h2 { margin: 0 44px 5px 0; }
.kbooks-modal[dir="rtl"] .kbooks-modal-dialog h2 { margin: 0 0 5px 44px; }
.kbooks-selected-book { margin: 0 0 18px; color: var(--kb-muted); font-weight: 700; }
.kbooks-modal-close {
    position: absolute;
    top: 14px;
    inset-inline-end: 14px;
    z-index: 3;
    width: 36px;
    height: 36px;
    border: 0;
    border-radius: 50%;
    background: #eef2f7;
    color: #172033;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
}
.kbooks-modal form { display: grid; gap: 14px; }
.kbooks-form-message { min-height: 24px; font-weight: 700; }
.kbooks-form-message.is-success { color: #047857; }
.kbooks-form-message.is-error { color: #b91c1c; }
.kbooks-modal-open { overflow: hidden !important; }

.kbooks-pdf-modal-dialog {
    width: min(1120px, 100%);
    height: min(860px, calc(100vh - max(40px, 8vh)));
    overflow: hidden;
    padding: 18px;
}
.kbooks-pdf-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 48px;
    padding-inline-end: 46px;
    margin-bottom: 12px;
}
.kbooks-pdf-header h2 { margin: 0 0 3px; }
.kbooks-pdf-header p { margin: 0; color: var(--kb-muted); font-weight: 700; }
.kbooks-pdf-new-tab {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 7px 12px;
    border: 1px solid var(--kb-border);
    border-radius: 9px;
    text-decoration: none;
    white-space: nowrap;
}
.kbooks-pdf-frame {
    display: block;
    width: 100%;
    height: calc(100% - 70px);
    border: 1px solid var(--kb-border);
    border-radius: 10px;
    background: #f3f4f6;
}

@media (max-width: 1100px) {
    .kbooks-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
    .kbooks-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .kbooks-cover { height: 240px; }
}

@media (max-width: 680px) {
    .kbooks-library-card { align-items: flex-start; flex-direction: column; }
    .kbooks-filter,
    .kbooks-form-row { grid-template-columns: 1fr; }
    .kbooks-grid { grid-template-columns: 1fr; }
    .kbooks-card { max-width: 360px; }
    .kbooks-cover { height: 245px; }
    .kbooks-single-details dl { grid-template-columns: 1fr; }
    .kbooks-single-actions { display: grid; }
    .kbooks-order-button,
    .kbooks-pdf-button { width: 100%; }
    .kbooks-modal { padding: 12px; }
    .kbooks-modal-dialog { max-height: calc(100vh - 24px); padding: 22px 18px; }
    .kbooks-pdf-modal-dialog { height: calc(100vh - 24px); padding: 14px; }
    .kbooks-pdf-header { align-items: stretch; flex-direction: column; padding-inline-end: 42px; }
    .kbooks-pdf-new-tab { justify-content: center; }
    .kbooks-pdf-frame { height: calc(100% - 118px); }
}