/* ─────────────────────────────────────────────────────
   Nivoda Lab Diamonds — Frontend Styles
   Clean, luxury, 77diamonds-inspired
   ───────────────────────────────────────────────────── */

:root {
    --nld-black:      #0a0a0a;
    --nld-dark:       #1c1c1e;
    --nld-mid:        #555;
    --nld-muted:      #999;
    --nld-border:     #e8e8e8;
    --nld-bg:         #fafafa;
    --nld-white:      #fff;
    --nld-gold:       #c8a96e;
    --nld-gold-light: #e0c99a;
    --nld-teal:       #0d9488;
    --nld-radius:     4px;
    --nld-radius-lg:  12px;
    --nld-shadow:     0 2px 20px rgba(0,0,0,.06);
    --nld-shadow-lg:  0 8px 40px rgba(0,0,0,.12);
    --nld-ease:       .2s cubic-bezier(.4,0,.2,1);
    --nld-font:       'Georgia', 'Times New Roman', serif;
    --nld-sans:       -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

/* ── Wrap ── */
.nld-wrap {
    font-family: var(--nld-sans);
    color: var(--nld-dark);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px 60px;
    box-sizing: border-box;
}

*, *::before, *::after { box-sizing: inherit; }

/* ── Shape filter bar ── */
.nld-shapes {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--nld-border);
    align-items: center;
}

.nld-shapes__label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--nld-muted);
    margin-right: 4px;
    white-space: nowrap;
}

.nld-shape-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 10px 14px 8px;
    border: 1.5px solid var(--nld-border);
    border-radius: var(--nld-radius-lg);
    background: var(--nld-white);
    cursor: pointer;
    transition: var(--nld-ease);
    font-size: 10px;
    font-family: var(--nld-sans);
    color: var(--nld-muted);
    letter-spacing: .06em;
    text-transform: uppercase;
    min-width: 64px;
}

@media (max-width: 600px) {
    .nld-shape-btn {
        min-width: 0;
        width: calc(20% - 7px);
        padding: 8px 4px 6px;
        font-size: 8px;
        gap: 4px;
        border-radius: 8px;
    }
    .nld-shape-btn svg { width: 22px; height: 22px; }
    .nld-shapes { gap: 5px; }
}

.nld-shape-btn svg {
    width: 30px;
    height: 30px;
    transition: var(--nld-ease);
}

.nld-shape-btn:hover {
    border-color: var(--nld-gold);
    color: var(--nld-gold);
}

.nld-shape-btn.active {
    border-color: var(--nld-dark);
    background: var(--nld-dark);
    color: var(--nld-white);
}

.nld-shape-btn.active svg { stroke: var(--nld-white); }

/* ── Sort + results bar ── */
.nld-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.nld-count {
    font-size: 13px;
    color: var(--nld-muted);
    letter-spacing: .02em;
}

.nld-sort {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--nld-mid);
}

.nld-sort select {
    border: 1px solid var(--nld-border);
    border-radius: var(--nld-radius);
    padding: 6px 28px 6px 10px;
    font-size: 13px;
    font-family: var(--nld-sans);
    color: var(--nld-dark);
    background: var(--nld-white);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24'%3E%3Cpath fill='%23999' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    cursor: pointer;
    outline: none;
}

/* ── Grid ── */
.nld-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

@media (max-width: 1200px) { .nld-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px)  { .nld-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; } }
@media (max-width: 480px)  { .nld-grid { grid-template-columns: 1fr; } }

/* ── Loading ── */
.nld-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--nld-muted);
}

.nld-spinner {
    width: 32px;
    height: 32px;
    border: 2px solid var(--nld-border);
    border-top-color: var(--nld-gold);
    border-radius: 50%;
    animation: nld-spin .7s linear infinite;
    margin: 0 auto 16px;
}

@keyframes nld-spin { to { transform: rotate(360deg); } }

.nld-empty, .nld-error {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--nld-muted);
    font-size: 15px;
}
.nld-error { color: #e53e3e; }

/* ── Diamond Card ── */
.nld-card {
    background: var(--nld-white);
    border: 1px solid var(--nld-border);
    border-radius: var(--nld-radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: box-shadow var(--nld-ease), transform var(--nld-ease), border-color var(--nld-ease);
    display: flex;
    flex-direction: column;
    animation: nld-fadein .35s ease both;
}

@keyframes nld-fadein {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.nld-card:hover {
    box-shadow: var(--nld-shadow-lg);
    transform: translateY(-3px);
    border-color: var(--nld-gold-light);
}

/* Card image */
.nld-card__img {
    position: relative;
    background: var(--nld-bg);
    aspect-ratio: 1;
    overflow: hidden;
}

.nld-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
    display: block;
}

.nld-card:hover .nld-card__img img {
    transform: scale(1.04);
}

.nld-card__lab-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(13,148,136,.9);
    color: #fff;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 3px;
    backdrop-filter: blur(4px);
}

.nld-card__avail {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #48bb78;
    box-shadow: 0 0 0 2px rgba(255,255,255,.85);
}

.nld-card__avail--memo        { background: #ed8936; }
.nld-card__avail--unavailable { background: #e53e3e; }

/* Card body */
.nld-card__body {
    padding: 14px 16px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.nld-card__title {
    font-family: var(--nld-font);
    font-size: 15px;
    font-weight: 400;
    color: var(--nld-dark);
    margin: 0;
    line-height: 1.3;
}

.nld-card__specs {
    font-size: 11px;
    color: var(--nld-muted);
    margin: 0;
    line-height: 1.6;
    letter-spacing: .02em;
}

.nld-card__footer {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid var(--nld-border);
}

.nld-card__price {
    font-size: 18px;
    font-weight: 700;
    color: var(--nld-dark);
    letter-spacing: -.01em;
    font-family: var(--nld-sans);
}

.nld-card__price--hidden {
    font-size: 12px;
    font-weight: 600;
    color: var(--nld-gold);
    letter-spacing: .04em;
    text-transform: uppercase;
    cursor: pointer;
}

.nld-card__cert {
    font-size: 10px;
    color: var(--nld-muted);
    letter-spacing: .04em;
    text-align: right;
}

/* ── Pagination ── */
.nld-pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.nld-pagination__btn {
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--nld-border);
    border-radius: var(--nld-radius);
    background: var(--nld-white);
    font-size: 13px;
    font-family: var(--nld-sans);
    color: var(--nld-dark);
    cursor: pointer;
    transition: var(--nld-ease);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nld-pagination__btn:hover,
.nld-pagination__btn.active {
    background: var(--nld-dark);
    border-color: var(--nld-dark);
    color: var(--nld-white);
}

.nld-pagination__btn:disabled {
    opacity: .35;
    cursor: default;
}

/* ── Modal ── */
.nld-modal {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.nld-modal[hidden] { display: none; }

.nld-modal__bg {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.55);
    backdrop-filter: blur(6px);
}

.nld-modal__box {
    position: relative;
    background: var(--nld-white);
    border-radius: var(--nld-radius-lg);
    width: 100%;
    max-width: 900px;
    max-height: 92vh;
    overflow-y: auto;
    box-shadow: 0 32px 80px rgba(0,0,0,.25);
    animation: nld-modal-in .28s cubic-bezier(.34,1.56,.64,1);
}

@keyframes nld-modal-in {
    from { opacity:0; transform:scale(.94) translateY(16px); }
    to   { opacity:1; transform:scale(1) translateY(0); }
}

.nld-modal__close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 32px;
    height: 32px;
    border: 1px solid var(--nld-border);
    border-radius: 50%;
    background: var(--nld-white);
    font-size: 14px;
    color: var(--nld-mid);
    cursor: pointer;
    z-index: 1;
    transition: var(--nld-ease);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nld-modal__close:hover { background: var(--nld-dark); color: #fff; border-color: var(--nld-dark); }

/* ── Diamond Detail ── */
.nld-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

@media (max-width: 640px) {
    .nld-detail { grid-template-columns: 1fr; }
    .nld-modal__box { max-height: 95vh; }
    .nld-detail__info { padding: 16px; }
    .nld-detail__title { font-size: 1.1rem; }
    .nld-detail__price { font-size: 1.4rem; margin-bottom: 12px; }
    .nld-specs { grid-template-columns: 1fr 1fr; gap: 8px 12px; padding: 12px; }
    .nld-spec__value { font-size: 12px; }
}

.nld-detail__media {
    /* handled entirely inline in JS */
}



.nld-detail__info {
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 0;
}

@media (max-width: 640px) {
    .nld-detail__info { padding: 20px 16px; }
}

.nld-detail__lab {
    display: inline-block;
    background: #f0fdfb;
    color: var(--nld-teal);
    border: 1px solid #99f6e4;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 3px 9px;
    border-radius: 3px;
    margin-bottom: 12px;
    width: fit-content;
}

.nld-detail__title {
    font-family: var(--nld-font);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--nld-dark);
    margin: 0 0 4px;
    line-height: 1.2;
}

.nld-detail__cert {
    font-size: 11px;
    color: var(--nld-muted);
    margin: 0 0 16px;
    letter-spacing: .04em;
}

.nld-detail__price {
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--nld-dark);
    margin-bottom: 0;
    letter-spacing: -.02em;
    font-family: var(--nld-sans);
}

.nld-detail__price--hidden {
    font-size: 13px;
    font-weight: 600;
    color: var(--nld-gold);
    letter-spacing: .06em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

/* Specs grid */
.nld-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 20px;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--nld-bg);
    border-radius: var(--nld-radius);
}

.nld-spec {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nld-spec__label {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--nld-muted);
}

.nld-spec__value {
    font-size: 13px;
    color: var(--nld-dark);
    font-weight: 500;
}

.nld-divider {
    border: none;
    border-top: 1px solid var(--nld-border);
    margin: 16px 0;
}

/* Inquiry form */
.nld-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: auto;
}

.nld-form h4 {
    font-size: 13px;
    font-weight: 700;
    margin: 0 0 4px;
    color: var(--nld-dark);
    letter-spacing: .04em;
    text-transform: uppercase;
}

.nld-form input,
.nld-form textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--nld-border);
    border-radius: var(--nld-radius);
    font-size: 13px;
    font-family: var(--nld-sans);
    color: var(--nld-dark);
    background: var(--nld-bg);
    outline: none;
    transition: border-color var(--nld-ease);
}

.nld-form input:focus,
.nld-form textarea:focus { border-color: var(--nld-gold); background: #fff; }

.nld-form textarea { resize: vertical; min-height: 68px; }

.nld-form input::placeholder,
.nld-form textarea::placeholder { color: var(--nld-muted); }

.nld-btn {
    padding: 12px 20px;
    border: none;
    border-radius: var(--nld-radius);
    font-size: 13px;
    font-weight: 700;
    font-family: var(--nld-sans);
    letter-spacing: .06em;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--nld-ease);
    background: var(--nld-dark);
    color: #fff;
    width: 100%;
}

.nld-btn:hover { background: var(--nld-gold); }
.nld-btn:disabled { opacity: .6; cursor: not-allowed; }

.nld-form__msg {
    font-size: 12px;
    padding: 8px 12px;
    border-radius: var(--nld-radius);
    text-align: center;
    display: none;
}

.nld-form__msg.success { background: #f0fdf4; color: #16a34a; display: block; }
.nld-form__msg.error   { background: #fef2f2; color: #dc2626; display: block; }

/* ── Mobile adjustments ── */
@media (max-width: 480px) {
    .nld-card__title { font-size: 13px; }
    .nld-card__price { font-size: 15px; }
    .nld-detail__title { font-size: 1.2rem; }
    .nld-detail__price { font-size: 1.5rem; }
    .nld-specs { grid-template-columns: 1fr 1fr; }
    .nld-filter-row--cols { gap: 16px; }
    .nld-filter-row--bottom { gap: 8px; }
    .nld-apply-btn, .nld-reset-btn { padding: 10px 16px; font-size: 11px; }
}

/* ── Load More ── */
.nld-loadmore-btn {
    display: inline-block;
    padding: 14px 48px;
    background: transparent;
    border: 1.5px solid var(--nld-dark);
    border-radius: 2px;
    font-size: 12px;
    font-weight: 700;
    font-family: var(--nld-sans);
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--nld-dark);
    cursor: pointer;
    transition: var(--nld-ease);
}

.nld-loadmore-btn:hover {
    background: var(--nld-dark);
    color: #fff;
}

.nld-loadmore-btn:disabled {
    opacity: .5;
    cursor: not-allowed;
}

/* ── Filter Panel ── */
.nld-filters {
    background: var(--nld-white);
    border: 1px solid var(--nld-border);
    border-radius: var(--nld-radius-lg);
    padding: 20px 24px;
    margin-bottom: 28px;
    box-shadow: var(--nld-shadow);
}

.nld-filter-row {
    padding: 14px 0;
    border-bottom: 1px solid var(--nld-border);
}

.nld-filter-row:last-child { border-bottom: none; padding-bottom: 0; }
.nld-filter-row:first-child { padding-top: 0; }

.nld-filter-row--cols {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.nld-filter-row--bottom {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.nld-filter-block { flex: 1; min-width: 0; }

.nld-filter-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--nld-muted);
    margin-bottom: 10px;
}

.nld-btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.nld-filter-btn {
    padding: 6px 14px;
    border: 1.5px solid var(--nld-border);
    border-radius: 100px;
    background: var(--nld-bg);
    font-size: 12px;
    font-weight: 500;
    font-family: var(--nld-sans);
    color: var(--nld-mid);
    cursor: pointer;
    transition: var(--nld-ease);
    letter-spacing: .03em;
    white-space: nowrap;
}

.nld-filter-btn--sq {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 6px;
    font-weight: 700;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nld-filter-btn:hover,
.nld-filter-btn.active {
    border-color: var(--nld-dark);
    background: var(--nld-dark);
    color: var(--nld-white);
}

.nld-apply-btn {
    padding: 10px 28px;
    background: var(--nld-dark);
    color: var(--nld-white);
    border: none;
    border-radius: var(--nld-radius);
    font-size: 12px;
    font-weight: 700;
    font-family: var(--nld-sans);
    letter-spacing: .1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--nld-ease);
}

.nld-apply-btn:hover { background: var(--nld-gold); }

.nld-reset-btn {
    padding: 10px 16px;
    background: transparent;
    color: var(--nld-muted);
    border: 1px solid var(--nld-border);
    border-radius: var(--nld-radius);
    font-size: 12px;
    font-family: var(--nld-sans);
    letter-spacing: .06em;
    cursor: pointer;
    transition: var(--nld-ease);
}

.nld-reset-btn:hover { color: var(--nld-white); background: var(--nld-dark); border-color: var(--nld-dark); }

/* Shape row inside filter panel */
.nld-filters .nld-shapes {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}