/* ── Design Tokens ──────────────────────────────────────────────────────────── */
:root {
    --vb-primary:       #6c63ff;
    --vb-primary-dark:  #574fd6;
    --vb-primary-light: #ede9ff;
    --vb-gradient-end:  #8b5cf6;
    --vb-success:       #22c55e;
    --vb-danger:        #ef4444;
    --vb-text:          #1e293b;
    --vb-text-muted:    #64748b;
    --vb-border:        #e2e8f0;
    --vb-bg:            #f8fafc;
    --vb-radius:        14px;
    --vb-radius-sm:     8px;
    --vb-shadow:        0 4px 24px rgba(0,0,0,.08);
    --vb-transition:    0.22s cubic-bezier(.4,0,.2,1);
}

/* ── Widget Shell ───────────────────────────────────────────────────────────── */
.vb-booking-widget {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #fff;
    border-radius: var(--vb-radius);
    box-shadow: var(--vb-shadow);
    max-width: 520px;
    overflow: hidden;
    color: var(--vb-text);
}

.vb-booking-widget * { box-sizing: border-box; }

/* ── Header ─────────────────────────────────────────────────────────────────── */
.vb-widget-header {
    background: linear-gradient(135deg, var(--vb-primary) 0%, var(--vb-gradient-end) 100%);
    padding: 24px 28px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.vb-widget-title {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
}

/* Steps indicator */
.vb-steps-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

/* ── Services Panel ─────────────────────────────────────────────────────────── */
.vb-services-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--vb-text);
    padding: 20px 24px 12px;
}

.vb-services-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0 24px 24px;
}

.vb-service-card {
    background: #fff;
    border: 2px solid var(--vb-border);
    border-radius: var(--vb-radius-sm);
    padding: 16px;
    cursor: pointer;
    transition: all var(--vb-transition);
}

.vb-service-card:hover {
    border-color: var(--vb-primary);
    box-shadow: 0 4px 14px rgba(108, 99, 255, 0.12);
    transform: translateY(-1px);
}

.vb-service-card--selected {
    border-color: var(--vb-primary);
    background: var(--vb-primary-light);
    box-shadow: 0 4px 14px rgba(108, 99, 255, 0.18);
}

.vb-service-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.vb-service-title {
    font-weight: 700;
    font-size: 15px;
    color: var(--vb-text);
}

.vb-service-meta {
    display: flex;
    align-items: center;
    gap: 8px;
}

.vb-service-price {
    background: var(--vb-primary);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 12px;
}

.vb-service-duration {
    background: #f1f5f9;
    color: var(--vb-text-muted);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
}

.vb-service-desc {
    margin: 8px 0 0;
    font-size: 13px;
    color: var(--vb-text-muted);
    line-height: 1.4;
}

.vb-step {
    width: 28px; height: 28px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 700;
    background: rgba(255,255,255,.25);
    color: rgba(255,255,255,.7);
    transition: background var(--vb-transition), color var(--vb-transition);
}

.vb-step--active   { background: #fff; color: var(--vb-primary); }
.vb-step--done     { background: rgba(255,255,255,.5); color: #fff; }
.vb-step-line      { width: 18px; height: 2px; background: rgba(255,255,255,.3); border-radius: 2px; }

/* ── Panels ─────────────────────────────────────────────────────────────────── */
.vb-panel {
    padding: 24px 28px;
    animation: vbFadeIn var(--vb-transition) both;
}

.vb-panel--hidden { display: none; }

@keyframes vbFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.vb-panel-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.vb-selected-date-label,
.vb-selected-slot-label {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--vb-text);
}

/* ── Calendar ───────────────────────────────────────────────────────────────── */
.vb-cal-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.vb-cal-nav-btn {
    width: 34px; height: 34px;
    border: 1px solid var(--vb-border);
    border-radius: var(--vb-radius-sm);
    background: var(--vb-bg);
    font-size: 20px; line-height: 1;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--vb-text-muted);
    transition: background var(--vb-transition), color var(--vb-transition);
}

.vb-cal-nav-btn:hover { background: var(--vb-primary-light); color: var(--vb-primary); border-color: var(--vb-primary); }

.vb-cal-month-label { font-size: 16px; font-weight: 700; }

.vb-cal-weekdays,
.vb-cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.vb-cal-weekdays { margin-bottom: 6px; }

.vb-cal-wd {
    text-align: center;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--vb-text-muted);
    padding: 4px 0;
}

.vb-cal-day {
    aspect-ratio: 1;
    border: none;
    border-radius: var(--vb-radius-sm);
    background: transparent;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background var(--vb-transition), color var(--vb-transition);
    color: var(--vb-text);
}

.vb-cal-day:hover:not(:disabled) { background: var(--vb-primary-light); color: var(--vb-primary); }
.vb-cal-day--today               { font-weight: 800; color: var(--vb-primary); }
.vb-cal-day--selected            { background: var(--vb-primary) !important; color: #fff !important; font-weight: 700; }
.vb-cal-day--empty               { cursor: default; }
.vb-cal-day:disabled             { color: var(--vb-border); cursor: not-allowed; }
.vb-cal-day--unavailable         {
    color: var(--vb-border) !important;
    cursor: not-allowed;
    position: relative;
    overflow: hidden;
}
.vb-cal-day--unavailable::after {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        135deg,
        transparent,
        transparent 4px,
        rgba(0,0,0,.05) 4px,
        rgba(0,0,0,.05) 5px
    );
    border-radius: inherit;
    pointer-events: none;
}

/* ── Time Slots ─────────────────────────────────────────────────────────────── */
.vb-slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 10px;
}

.vb-slot-btn {
    padding: 12px 8px;
    border: 1.5px solid var(--vb-border);
    border-radius: var(--vb-radius-sm);
    background: var(--vb-bg);
    text-align: center;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    color: var(--vb-text);
    transition: border-color var(--vb-transition), background var(--vb-transition), color var(--vb-transition), transform var(--vb-transition);
}

.vb-slot-btn:hover     { border-color: var(--vb-primary); background: var(--vb-primary-light); color: var(--vb-primary); transform: translateY(-1px); }
.vb-slot-btn--selected { border-color: var(--vb-primary); background: var(--vb-primary); color: #fff; }

.vb-slot-time { display: block; }
.vb-slot-end  { display: block; font-size: 11px; font-weight: 400; opacity: .8; }

.vb-slots-msg {
    text-align: center;
    color: var(--vb-text-muted);
    font-size: 14px;
    padding: 20px 0;
}

/* ── Loading Spinner ────────────────────────────────────────────────────────── */
.vb-spinner {
    width: 32px; height: 32px;
    border: 3px solid var(--vb-border);
    border-top-color: var(--vb-primary);
    border-radius: 50%;
    animation: vbSpin .7s linear infinite;
    margin: 24px auto;
}

@keyframes vbSpin { to { transform: rotate(360deg); } }

/* ── Back Button ────────────────────────────────────────────────────────────── */
.vb-back-btn {
    background: none;
    border: none;
    color: var(--vb-text-muted);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    transition: color var(--vb-transition);
    flex-shrink: 0;
}

.vb-back-btn:hover { color: var(--vb-primary); }

/* ── Form ───────────────────────────────────────────────────────────────────── */
.vb-form { display: flex; flex-direction: column; gap: 16px; }

.vb-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.vb-form-field { display: flex; flex-direction: column; gap: 6px; }

.vb-form-field label {
    font-size: 13px;
    font-weight: 600;
    color: var(--vb-text);
}

.vb-required { color: var(--vb-danger); }

.vb-form-field input,
.vb-form-field textarea {
    padding: 10px 14px;
    border: 1.5px solid var(--vb-border);
    border-radius: var(--vb-radius-sm);
    font-size: 14px;
    color: var(--vb-text);
    background: #fff;
    transition: border-color var(--vb-transition), box-shadow var(--vb-transition);
    font-family: inherit;
    resize: vertical;
}

.vb-form-field input:focus,
.vb-form-field textarea:focus {
    outline: none;
    border-color: var(--vb-primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, .15);
}

.vb-form-field input.vb-invalid,
.vb-form-field textarea.vb-invalid { border-color: var(--vb-danger); }

.vb-field-error { font-size: 11px; color: var(--vb-danger); min-height: 14px; }

.vb-form-error {
    background: #fee2e2;
    color: #b91c1c;
    border-radius: var(--vb-radius-sm);
    padding: 10px 14px;
    font-size: 13px;
    display: none;
}

.vb-form-error.vb-visible { display: block; }

.vb-submit-btn {
    background: linear-gradient(135deg, var(--vb-primary), #8b5cf6);
    color: #fff;
    border: none;
    border-radius: var(--vb-radius-sm);
    padding: 14px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: opacity var(--vb-transition), transform var(--vb-transition);
    box-shadow: 0 4px 14px rgba(108,99,255,.35);
}

.vb-submit-btn:hover:not(:disabled) { opacity: .9; transform: translateY(-1px); }
.vb-submit-btn:disabled             { opacity: .6; cursor: not-allowed; }

/* ── Success ────────────────────────────────────────────────────────────────── */
.vb-success {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
    padding: 16px 0;
}

.vb-success__icon { font-size: 52px; animation: vbPop .4s cubic-bezier(.34,1.56,.64,1) both; }

@keyframes vbPop { from { transform: scale(.4); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.vb-success h4  { margin: 0; font-size: 20px; font-weight: 700; }
.vb-success p   { margin: 0; color: var(--vb-text-muted); font-size: 14px; line-height: 1.6; }

.vb-btn-new-booking {
    margin-top: 8px;
    background: var(--vb-primary-light);
    color: var(--vb-primary);
    border: none;
    border-radius: var(--vb-radius-sm);
    padding: 10px 22px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: background var(--vb-transition);
}

.vb-btn-new-booking:hover { background: #ddd6fe; }

/* ── Error ──────────────────────────────────────────────────────────────────── */
.vb-error {
    color: var(--vb-danger);
    font-size: 14px;
    padding: 12px;
    border: 1px solid #fecaca;
    border-radius: var(--vb-radius-sm);
    background: #fff1f1;
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media ( max-width: 480px ) {
    .vb-panel                { padding: 20px 18px; }
    .vb-widget-header        { padding: 20px 18px 16px; flex-direction: column; align-items: flex-start; }
    .vb-form-row             { grid-template-columns: 1fr; }
    .vb-slots-grid           { grid-template-columns: repeat(3, 1fr); }
}