:root{--sf-bg:#18181b;--sf-surface:#27272a;--sf-border:#3f3f46;--sf-text:#fafafa;--sf-text-muted:#a1a1aa;--sf-accent:#fafafa;--sf-accent-text:#18181b;--sf-radius:10px;--sf-slot-available:#3f3f46;--sf-slot-available-text:#fafafa;--sf-slot-selected-bg:#fafafa;--sf-slot-selected-text:#18181b;--sf-slot-unavailable-bg:#1c1c1f;--sf-slot-unavailable-text:#52525b}.sf-calendar{width:100%;font-family:inherit;color:var(--sf-text);-webkit-user-select:none;-moz-user-select:none;user-select:none}.sf-section-label{font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--sf-text-muted);margin-bottom:10px}.sf-cal-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:8px}.sf-cal-nav span{font-size:14px;font-weight:600;color:var(--sf-text);flex:1;text-align:center}.sf-cal-nav button{width:28px;height:28px;border-radius:6px;border:1px solid var(--sf-border);background:var(--sf-surface);color:var(--sf-text);font-size:18px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s,border-color .15s;padding:0;flex-shrink:0}.sf-cal-nav button:hover{background:var(--sf-border);border-color:var(--sf-text-muted)}.sf-cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:3px}.sf-cal-day-name{font-size:11px;font-weight:600;color:var(--sf-text-muted);text-align:center;padding:4px 0;letter-spacing:.03em}.sf-cal-day{aspect-ratio:1;border-radius:7px;border:1px solid transparent;background:transparent;color:var(--sf-text-muted);font-size:13px;font-weight:400;cursor:default;display:flex;align-items:center;justify-content:center;transition:background .12s,color .12s,border-color .12s;padding:0;line-height:1}.sf-cal-day.sf-has-availability{color:var(--sf-text);cursor:pointer}.sf-cal-day.sf-has-availability:hover:not(.sf-selected){background:var(--sf-surface);border-color:var(--sf-border)}.sf-cal-day.sf-disabled{color:#3f3f46;cursor:not-allowed;opacity:.5}.sf-cal-day.sf-today:not(.sf-selected){border-color:var(--sf-border);color:var(--sf-text);font-weight:600}.sf-cal-day.sf-selected{background:var(--sf-accent);color:var(--sf-accent-text);border-color:transparent;font-weight:700;cursor:pointer}.sf-time-period{margin-bottom:12px}.sf-time-period-label{font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--sf-text-muted);margin-bottom:7px}.sf-time-slots{display:flex;flex-wrap:wrap;gap:6px}.sf-time-slot{padding:6px 12px;border-radius:7px;border:1px solid var(--sf-border);background:var(--sf-slot-available);color:var(--sf-slot-available-text);font-size:13px;font-weight:500;cursor:pointer;transition:background .12s,color .12s,border-color .12s,transform .08s;line-height:1.4}.sf-time-slot:hover:not(.sf-unavailable):not(.sf-selected){background:var(--sf-border);border-color:var(--sf-text-muted);transform:translateY(-1px)}.sf-time-slot.sf-selected{background:var(--sf-slot-selected-bg);color:var(--sf-slot-selected-text);border-color:transparent;font-weight:700}.sf-time-slot.sf-unavailable{background:var(--sf-slot-unavailable-bg);color:var(--sf-slot-unavailable-text);border-color:transparent;cursor:not-allowed;text-decoration:line-through;opacity:.6}.sf-selected-summary{display:flex;align-items:center;gap:8px;margin-top:14px;padding:10px 14px;border-radius:var(--sf-radius);background:var(--sf-surface);border:1px solid var(--sf-border);font-size:13px;color:var(--sf-text)}.sf-check{display:inline-flex;width:20px;height:20px;border-radius:50%;background:var(--sf-accent);color:var(--sf-accent-text);font-size:11px;font-weight:800;flex-shrink:0}.sf-check,.sf-success-overlay{align-items:center;justify-content:center}.sf-success-overlay{display:flex;flex-direction:column;padding:40px 24px;text-align:center;gap:10px;color:var(--sf-text,#fafafa)}.sf-success-icon{width:52px;height:52px;border-radius:50%;background:var(--sf-accent,#fafafa);color:var(--sf-accent-text,#18181b);font-size:24px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:6px;box-shadow:0 0 0 6px rgba(250,250,250,.08)}.sf-success-title{font-size:17px;font-weight:700;color:var(--sf-text,#fafafa);letter-spacing:-.01em}.sf-success-msg{font-size:13px;color:var(--sf-text-muted,#a1a1aa);max-width:280px;line-height:1.5}