:root{--bg: #f6f7f9;--surface: #ffffff;--text: #17202a;--muted: #667085;--border: #e4e7ec;--accent: #2f6df6;--accent-hover: #245ad1;--accent-soft: #eaf1fe;--accent-text: #1a4fd1;--success: #0f7b4f;--success-soft: #e6f5ee;--danger: #c0392b;--danger-soft: #fbecea;--warning-soft: #fdf3e4;--warning-text: #955c12;--radius: 12px;--shadow: 0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:1.0625rem;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent-text);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,.btn:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.container{max-width:760px;margin:0 auto;padding:24px 16px 64px}.container-wide{max-width:1000px}.site-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:16px 0;border-bottom:1px solid var(--border);margin-bottom:24px}.site-header h1{font-size:20px;margin:0}.site-header .brand{font-weight:700;color:var(--text)}h2{font-size:22px;margin:0 0 4px}.lead{color:var(--muted);margin:0 0 24px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card+.card{margin-top:14px}.day-heading{font-size:16px;font-weight:600;color:var(--muted);margin:28px 0 12px}.class-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.class-time{font-size:26px;font-weight:700;min-width:72px;font-variant-numeric:tabular-nums}.class-main{flex:1 1 200px}.class-title{font-size:17px;font-weight:600;margin:0}.class-meta{color:var(--muted);font-size:15px;margin:2px 0 0}.pill{display:inline-block;font-size:15px;font-weight:600;padding:4px 10px;border-radius:999px;white-space:nowrap}.pill-free{background:var(--success-soft);color:var(--success)}.pill-low{background:var(--warning-soft);color:var(--warning-text)}.pill-full{background:var(--danger-soft);color:var(--danger)}.pill-muted{background:var(--bg);color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font:inherit;font-weight:600;padding:10px 18px;min-height:48px;border-radius:10px;border:1px solid transparent;cursor:pointer;transition:background .12s,border-color .12s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}.btn-ghost:hover:not(:disabled){background:var(--bg)}.btn-danger{background:transparent;border-color:var(--danger);color:var(--danger)}.btn-danger:hover:not(:disabled){background:var(--danger-soft)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-block{width:100%}.field{display:block;margin-bottom:16px}.field label{display:block}.field label>span{display:block;font-size:16px;font-weight:600;margin-bottom:6px}.field input,.field textarea{width:100%;font:inherit;padding:10px 12px;min-height:48px;border:1px solid var(--border);border-radius:10px;background:#fff}.field input:focus-visible,.field textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-color:var(--accent)}.field-hint{font-size:15px;color:var(--muted);margin-top:4px}.field-error{font-size:16px;font-weight:600;color:var(--danger);margin-top:4px}.field input[aria-invalid=true],.field textarea[aria-invalid=true]{border-color:var(--danger)}.field-row{display:flex;gap:12px;flex-wrap:wrap}.field-row .field{flex:1 1 140px}.callout{border-radius:10px;padding:12px 14px;font-size:17px;margin-bottom:16px}.callout-error{background:var(--danger-soft);color:var(--danger)}.callout-success{background:var(--success-soft);color:var(--success)}.callout-info{background:var(--accent-soft);color:var(--accent-text)}.callout-warning{background:var(--warning-soft);color:var(--warning-text)}.email-highlight{font-size:22px;font-weight:700;line-height:1.25;overflow-wrap:anywhere;margin:4px 0 0;padding:8px 12px;border:1px solid var(--border);border-radius:10px;background:var(--bg);display:inline-block}.text-button{display:inline-flex;align-items:center;min-height:48px;font:inherit;font-size:15px;font-weight:600;color:var(--accent-text);background:none;border:none;padding:0;cursor:pointer;text-decoration:underline}.text-button:hover{color:var(--accent-hover)}.text-button:disabled{opacity:.55;cursor:not-allowed}.muted{color:var(--muted)}.center{text-align:center}.stack-gap{display:flex;flex-direction:column;gap:8px}.row-between{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.back-link,.site-header nav a{display:inline-flex;align-items:center;min-height:48px}.back-link{margin-bottom:16px;font-size:15px}.attendee-table-scroll{overflow-x:auto}.table{width:100%;border-collapse:collapse;font-size:15px}.table th,.table td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border)}.table th{color:var(--muted);font-weight:600}.attendee-list .table th,.attendee-list .table td{white-space:nowrap}.attendee-cards{display:none;list-style:none;padding:0;margin:0}@media(max-width:640px){.attendee-cards{display:flex;flex-direction:column;gap:12px}.attendee-table-scroll{display:none}.attendee-card{border:1px solid var(--border);border-radius:10px;padding:12px 14px}.attendee-card-top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}.attendee-card-name{font-size:21px;font-weight:700}.attendee-card-top .pill{font-size:16px}.attendee-card-contact{display:flex;flex-direction:column;gap:10px;margin-top:8px}.attendee-card-contact a{min-height:48px;display:flex;align-items:center}.attendee-card-contact .attendee-card-email{font-size:15px;color:var(--muted)}.attendee-card-date{color:var(--muted);font-size:15px;margin-top:4px}}.skeleton{background:linear-gradient(90deg,#eef0f3,#f6f7f9,#eef0f3);background-size:200% 100%;animation:shimmer 1.2s infinite;border-radius:8px;height:72px}@keyframes shimmer{to{background-position:-200% 0}}.empty{text-align:center;color:var(--muted);padding:48px 16px}.class-row span.btn[aria-disabled]{color:var(--muted);cursor:default}@media(max-width:480px){.class-row{display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-areas:"time title" "pill pill" "btn btn";column-gap:12px;row-gap:10px;align-items:start}.class-row .class-time{grid-area:time}.class-row .class-main{grid-area:title}.class-row .pill{grid-area:pill;justify-self:start}.class-row .btn{grid-area:btn;width:100%}.class-row span.btn{width:auto;justify-self:start}}