/* ========== Quad Booking v1.0.0 ========== */
.qb-wrap {
    --qb-primary: #3a5171;
    --qb-primary-hover: #2c3e57;
    --qb-text: #1f2937;
    --qb-muted: #6b7280;
    --qb-bg: #ffffff;
    --qb-card-bg: #f9fafb;
    --qb-border: #e5e7eb;
    --qb-success: #16a34a;
    --qb-warn: #d97706;
    --qb-error: #dc2626;
    --qb-accent: #fbbc04;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--qb-text);
    max-width: 760px;
    margin: 30px auto;
    background: var(--qb-bg);
    border: 1px solid var(--qb-border);
    border-radius: 12px;
    padding: 28px 28px 22px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.05);
    box-sizing: border-box;
}
.qb-wrap *, .qb-wrap *::before, .qb-wrap *::after { box-sizing: border-box; }

.qb-title {
    margin: 0 0 18px;
    font-size: 26px;
    font-weight: 700;
    color: var(--qb-primary);
    line-height: 1.2;
}

.qb-summary {
    background: var(--qb-card-bg);
    border: 1px solid var(--qb-border);
    border-radius: 8px;
    padding: 14px 18px;
    margin-bottom: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px 28px;
    font-size: 14px;
}
.qb-summary-item strong { color: var(--qb-primary); margin-right: 4px; }
.qb-summary-item .qb-sub { color: var(--qb-muted); font-size: 12px; display: block; }

.qb-form { display: flex; flex-direction: column; gap: 18px; }

.qb-row { display: flex; flex-direction: column; gap: 8px; }
.qb-row.qb-quantities-row,
.qb-row.qb-details-row { display: flex; flex-wrap: wrap; gap: 14px; flex-direction: row; }
.qb-row-half { flex: 1 1 calc(50% - 7px); min-width: 220px; display: flex; flex-direction: column; gap: 6px; }

.qb-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--qb-text);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.qb-wrap input[type="text"],
.qb-wrap input[type="email"],
.qb-wrap input[type="tel"],
.qb-wrap input[type="date"],
.qb-wrap select {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--qb-border);
    border-radius: 8px;
    font-size: 15px;
    color: var(--qb-text);
    background: #fff;
    transition: border-color 0.15s, box-shadow 0.15s;
    font-family: inherit;
}
.qb-wrap input:focus, .qb-wrap select:focus {
    outline: none;
    border-color: var(--qb-primary);
    box-shadow: 0 0 0 3px rgba(58, 81, 113, 0.15);
}

.qb-slots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
}
.qb-slot-btn {
    appearance: none;
    background: #fff;
    border: 2px solid var(--qb-border);
    border-radius: 10px;
    padding: 12px 8px;
    cursor: pointer;
    font: inherit;
    color: var(--qb-text);
    transition: all 0.15s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}
.qb-slot-btn:hover:not(:disabled) {
    border-color: var(--qb-primary);
    transform: translateY(-1px);
}
.qb-slot-btn.qb-slot-active {
    border-color: var(--qb-primary);
    background: var(--qb-primary);
    color: #fff;
}
.qb-slot-btn.qb-slot-active .qb-slot-status { color: rgba(255,255,255,0.85); }
.qb-slot-btn.qb-slot-sold {
    background: #f3f4f6;
    color: #9ca3af;
    cursor: not-allowed;
    opacity: 0.7;
}
.qb-slot-btn:disabled { cursor: not-allowed; }
.qb-slot-time { font-size: 18px; font-weight: 700; }
.qb-slot-status { font-size: 12px; color: var(--qb-muted); }

.qb-loading {
    display: inline-block;
    color: var(--qb-muted);
    font-size: 14px;
    padding: 8px 0;
}
.qb-error { color: var(--qb-error); font-size: 14px; }

.qb-price-box {
    background: linear-gradient(135deg, #fff 0%, #f9fafb 100%);
    border: 1px solid var(--qb-border);
    border-left: 4px solid var(--qb-primary);
    border-radius: 8px;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.qb-price-line { font-size: 14px; display: flex; justify-content: space-between; align-items: baseline; }
.qb-price-line strong { font-size: 16px; color: var(--qb-text); }
.qb-price-deposit strong { color: var(--qb-success); font-size: 22px; }
.qb-price-remaining { color: var(--qb-muted); font-size: 13px; padding-top: 4px; border-top: 1px dashed var(--qb-border); }

.qb-check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13.5px;
    line-height: 1.5;
    color: var(--qb-text);
    cursor: pointer;
    padding: 8px 0;
}
.qb-check input { margin-top: 2px; flex-shrink: 0; cursor: pointer; }

.qb-submit-btn {
    appearance: none;
    background: var(--qb-primary);
    color: #fff;
    border: none;
    border-radius: 999px;
    padding: 14px 32px;
    font: inherit;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: background 0.15s ease, transform 0.1s ease;
    margin-top: 4px;
}
.qb-submit-btn:hover:not(:disabled) {
    background: var(--qb-primary-hover);
    transform: translateY(-1px);
}
.qb-submit-btn:disabled { opacity: 0.7; cursor: progress; }
.qb-btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.4);
    border-top-color: #fff;
    border-radius: 50%;
    display: none;
    animation: qb-spin 0.7s linear infinite;
}
.qb-submit-btn.qb-loading .qb-btn-spinner { display: inline-block; }
@keyframes qb-spin { to { transform: rotate(360deg); } }

.qb-msg {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    border: 1px solid;
    margin-top: 4px;
}
.qb-msg-error   { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.qb-msg-info    { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }
.qb-msg-success { background: #f0fdf4; border-color: #bbf7d0; color: #166534; }

.qb-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    padding-top: 20px;
    margin-top: 18px;
    border-top: 1px solid var(--qb-border);
    font-size: 13px;
    color: var(--qb-muted);
}

@media (max-width: 560px) {
    .qb-wrap { padding: 20px 18px 18px; margin: 18px auto; }
    .qb-title { font-size: 22px; }
    .qb-row-half { flex: 1 1 100%; }
    .qb-slots { grid-template-columns: repeat(2, 1fr); }
}