/**
 * Silenthought — Voucher Book Calculator  (VC-001)
 * Color → Paper → Add-Ons → Quantity → Summary → Add to Cart
 * @package Silenthought
 */

/* ── Wrapper ─────────────────────────────────────────────────────── */
.vc-calculator {
    margin: 24px 0;
    background: #fff;
    font-family: var(--font-body, 'DM Sans', sans-serif);
}

/* ── Header ──────────────────────────────────────────────────────── */
.vc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 22px;
    background: #fafafa;
    border-bottom: 1.5px solid var(--color-gray-200, #e5e5e5);
    gap: 12px;
    flex-wrap: wrap;
}

.vc-header-left {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 15px;
    font-weight: 700;
    color: #111827;
}

.vc-badge {
    background: var(--color-red, #eb1f3a);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .6px;
    padding: 4px 12px;
    border-radius: 20px;
    white-space: nowrap;
}

/* ── Form area ───────────────────────────────────────────────────── */
#vc-form {
    padding: 22px;
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* ── Steps ───────────────────────────────────────────────────────── */
.vc-step {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-gray-100, #f5f5f5);
}

.vc-step:first-child  { padding-top: 4px; }
.vc-step:last-of-type { border-bottom: none; padding-bottom: 4px; }

.vc-step-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .7px;
    color: #374151;
    margin-bottom: 13px;
}

.vc-step-num {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-black, #000);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.vc-step-hint {
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    font-size: 11px;
    color: #9ca3af;
}

/* ── Option cards (Color + Material) ─────────────────────────────── */
.vc-option-row {
    display: grid;
    gap: 10px;
}

.vc-option-row--2 { grid-template-columns: 1fr 1fr; }

.vc-option-card {
    cursor: pointer;
    display: block;
}

.vc-option-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.vc-card-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 16px 10px;
    border: 2px solid var(--color-gray-200, #e5e5e5);
    border-radius: 10px;
    background: #fafafa;
    text-align: center;
    transition: border-color .17s, background .17s, box-shadow .17s;
    cursor: pointer;
    user-select: none;
}

.vc-option-card:hover .vc-card-inner {
    border-color: #9ca3af;
    background: #f3f4f6;
}

/* Selected state */
.vc-option-card input[type="radio"]:checked + .vc-card-inner {
    border-color: var(--color-red, #eb1f3a);
    background: var(--color-red, #eb1f3a);
    box-shadow: 0 4px 16px rgba(235,31,58,.25);
}

.vc-card-icon {
    font-size: 22px;
    line-height: 1;
}

.vc-card-title {
    font-size: 13px;
    font-weight: 700;
    color: #111827;
    line-height: 1.2;
}

.vc-card-sub {
    font-size: 11px;
    color: #6b7280;
    line-height: 1;
}

/* White text when selected */
.vc-option-card input[type="radio"]:checked + .vc-card-inner .vc-card-title,
.vc-option-card input[type="radio"]:checked + .vc-card-inner .vc-card-sub {
    color: rgba(255,255,255,.9);
}

/* ── Add-on rows ─────────────────────────────────────────────────── */
.vc-addon-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 14px;
    border: 1.5px solid var(--color-gray-200, #e5e5e5);
    border-radius: 9px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: border-color .17s, background .17s;
    user-select: none;
}

.vc-addon-row:last-of-type { margin-bottom: 0; }

.vc-addon-row:hover {
    border-color: #9ca3af;
    background: #fafafa;
}

/* Checked via JS class */
.vc-addon-row.is-checked {
    border-color: var(--color-red, #eb1f3a);
    background: #fff8f8;
}

/* Hidden native checkbox */
.vc-addon-row input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

/* Custom checkbox box */
.vc-check-box {
    width: 20px;
    height: 20px;
    border: 2px solid #d1d5db;
    border-radius: 5px;
    background: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: border-color .17s, background .17s;
}

.vc-check-box svg { display: none; }

.vc-addon-row.is-checked .vc-check-box {
    border-color: var(--color-red, #eb1f3a);
    background: var(--color-red, #eb1f3a);
}

.vc-addon-row.is-checked .vc-check-box svg { display: block; stroke: #fff; }

/* Addon text area */
.vc-addon-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.vc-addon-title {
    font-size: 13px;
    font-weight: 600;
    color: #1f2937;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.vc-addon-tag {
    background: #f3f4f6;
    color: #6b7280;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 20px;
}

.vc-addon-row.is-checked .vc-addon-tag {
    background: #fce7ea;
    color: var(--color-red, #eb1f3a);
}

.vc-addon-desc {
    font-size: 12px;
    color: #9ca3af;
    line-height: 1.3;
}

.vc-addon-price {
    font-size: 12px;
    font-weight: 700;
    color: var(--color-red, #eb1f3a);
    white-space: nowrap;
    flex-shrink: 0;
}

/* ── Numbering pill toggle ────────────────────────────────────────── */
.vc-numbering-wrap {
    margin-top: 8px;
}

.vc-numbering-pill {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 12px 18px;
    border: 2px solid var(--color-gray-200, #e5e5e5);
    border-radius: 50px;
    background: #fafafa;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-body, 'DM Sans', sans-serif);
    transition: border-color .17s, background .17s, box-shadow .17s;
    user-select: none;
}

.vc-numbering-pill:hover {
    border-color: var(--color-primary, #eb1f3a);
    background: #fff8f8;
}

.vc-numbering-pill.is-checked {
    border-color: var(--color-primary, #eb1f3a);
    background: var(--color-primary, #eb1f3a);
    box-shadow: 0 4px 14px rgba(235,31,58,.25);
}

.vc-pill-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(235,31,58,.1);
    color: var(--color-primary, #eb1f3a);
    flex-shrink: 0;
    transition: background .17s, color .17s;
}

.vc-numbering-pill.is-checked .vc-pill-icon {
    background: rgba(255,255,255,.25);
    color: #fff;
}

.vc-pill-label {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 13px;
    font-weight: 700;
    color: #1f2937;
    line-height: 1.2;
    transition: color .17s;
}

.vc-numbering-pill.is-checked .vc-pill-label { color: #fff; }

.vc-pill-sub {
    font-size: 11px;
    font-weight: 400;
    color: #9ca3af;
    transition: color .17s;
}

.vc-numbering-pill.is-checked .vc-pill-sub { color: rgba(255,255,255,.75); }

.vc-pill-price {
    font-size: 12px;
    font-weight: 700;
    color: var(--color-primary, #eb1f3a);
    white-space: nowrap;
    flex-shrink: 0;
    transition: color .17s;
}

.vc-numbering-pill.is-checked .vc-pill-price { color: rgba(255,255,255,.9); }

/* ── Numbering range fields ───────────────────────────────────────── */
.vc-num-range {
    margin-top: 8px;
    padding: 14px 16px;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
}

.vc-num-range-inner {
    display: flex;
    align-items: flex-end;
    gap: 10px;
}

.vc-num-field {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.vc-num-field label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: #6b7280;
}

.vc-num-field input[type="text"] {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid #d1d5db;
    border-radius: 7px;
    font-size: 16px;
    font-weight: 700;
    font-family: 'Poppins', monospace;
    color: #111827;
    background: #fff;
    text-align: center;
    transition: border-color .17s, box-shadow .17s;
}

.vc-num-field input[type="text"]:focus {
    outline: none;
    border-color: var(--color-red, #eb1f3a);
    box-shadow: 0 0 0 3px rgba(235,31,58,.10);
}

.vc-num-sep {
    font-size: 18px;
    color: #d1d5db;
    padding-bottom: 10px;
    flex-shrink: 0;
}

.vc-num-hint {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 8px;
    font-size: 11px;
    color: #9ca3af;
    line-height: 1.4;
}

.vc-num-hint svg { flex-shrink: 0; }

/* ── Quantity grid ───────────────────────────────────────────────── */
.vc-qty-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.vc-qty-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 13px 6px;
    border: 2px solid var(--color-gray-200, #e5e5e5);
    border-radius: 10px;
    background: #fafafa;
    cursor: pointer;
    text-align: center;
    transition: border-color .17s, background .17s, transform .14s, box-shadow .17s;
    font-family: var(--font-body, 'DM Sans', sans-serif);
}

.vc-qty-btn:hover {
    border-color: #9ca3af;
    background: #f3f4f6;
    transform: translateY(-2px);
}

.vc-qty-btn.active {
    border-color: var(--color-red, #eb1f3a);
    background: #fff0f2;
    box-shadow: 0 4px 14px rgba(235,31,58,.15);
    transform: translateY(-2px);
}

.vc-qty-label {
    font-size: 12px;
    font-weight: 700;
    color: #111827;
    line-height: 1.2;
}

.vc-qty-pages {
    font-size: 10px;
    color: #6b7280;
    font-weight: 500;
}

.vc-qty-price {
    font-size: 12px;
    font-weight: 700;
    color: var(--color-red, #eb1f3a);
    margin-top: 2px;
}

.vc-qty-btn.active .vc-qty-label { color: #9b1b2e; }

/* ── Order Summary ───────────────────────────────────────────────── */
.vc-summary {
    background: #f9fafb;
    border: 1.5px solid var(--color-gray-200, #e5e5e5);
    border-radius: 10px;
    padding: 15px 18px;
    margin: 20px 0 14px;
}

.vc-summary-head {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .7px;
    color: #6b7280;
    margin-bottom: 8px;
}

.vc-summary-head svg { color: #22c55e; }

.vc-summary-text {
    font-size: 13px;
    font-weight: 500;
    color: #374151;
    line-height: 1.6;
    margin-bottom: 11px;
    word-break: break-word;
}

.vc-summary-footer {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-top: 1px solid var(--color-gray-200, #e5e5e5);
    padding-top: 10px;
    font-size: 12px;
    color: #6b7280;
}

.vc-summary-footer-label { font-weight: 600; }

.vc-summary-total {
    font-size: 26px;
    font-weight: 800;
    color: var(--color-red, #eb1f3a);
    font-family: var(--font-display, 'Poppins', sans-serif);
    letter-spacing: -.5px;
    line-height: 1;
}

/* ── Error ───────────────────────────────────────────────────────── */
.vc-error {
    font-size: 13px;
    color: var(--color-red, #eb1f3a);
    background: #fff0f2;
    border: 1px solid #fecdd3;
    border-radius: 7px;
    padding: 10px 14px;
    margin-bottom: 12px;
}

/* ── Add to Cart ─────────────────────────────────────────────────── */
.vc-atc {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 24px;
    border: none;
    border-radius: 10px;
    background: var(--color-red, #eb1f3a);
    color: #fff;
    font-family: var(--font-display, 'Poppins', sans-serif);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .3px;
    cursor: pointer;
    transition: background .2s, transform .14s, box-shadow .2s;
    overflow: hidden;
}

.vc-atc:hover {
    background: #c91a31;
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(235,31,58,.35);
}

.vc-atc:active  { transform: translateY(0); }
.vc-atc.success { background: #16a34a; }

.vc-atc-icon { flex-shrink: 0; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 600px) {
    .vc-qty-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 440px) {
    #vc-form       { padding: 16px; }
    .vc-header     { padding: 12px 16px; }
    .vc-num-range-inner { flex-direction: column; gap: 8px; }
    .vc-num-sep    { display: none; }
    .vc-addon-row  { flex-wrap: wrap; }
    .vc-numbering-pill { padding: 10px 14px; }
    .vc-pill-icon  { width: 28px; height: 28px; }
}