:root{--teal: #008080;--teal-dark: #006060;--teal-light: #e0f2f2;--teal-border: #b2dfdf;--text-primary: #1a1a1a;--text-secondary: #4a4a4a;--text-muted: #6b7280;--bg: #f9fafb;--white: #ffffff;--error: #c0392b;--error-bg: #fdf2f2;--success: #1a6b3c;--success-bg: #f0fdf4;--warn: #7c4400;--warn-bg: #fffbeb;--border: #d1d5db;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.12);--font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans SC", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font);color:var(--text-primary);background:var(--bg);line-height:1.6;min-height:100dvh}.skip-link{position:absolute;top:-999px;left:8px;padding:8px 16px;background:var(--teal-dark);color:var(--white);border-radius:0 0 var(--radius) var(--radius);text-decoration:none;font-weight:600;z-index:100}.skip-link:focus{top:0}.site-header{background:var(--teal);color:var(--white);padding:16px 24px;text-align:center}.site-header .org-name{font-size:1.1rem;font-weight:700;letter-spacing:.02em}.site-header .tagline{font-size:.85rem;opacity:.85;margin-top:2px}.site-main{max-width:680px;margin:0 auto;padding:24px 16px 48px}.cta-anchor{display:block;text-align:center;background:var(--teal);color:var(--white);font-size:1.125rem;font-weight:700;padding:14px 24px;border-radius:var(--radius);text-decoration:none;margin:20px 0;min-height:48px;transition:background .15s}.cta-anchor:hover,.cta-anchor:focus{background:var(--teal-dark);outline:3px solid var(--teal-dark);outline-offset:2px}.event-card{background:var(--white);border:1px solid var(--teal-border);border-radius:var(--radius);padding:20px;margin-bottom:24px;box-shadow:var(--shadow)}.event-card h1{font-size:1.5rem;color:var(--teal-dark);margin-bottom:4px;line-height:1.3}.event-card .title-en{font-size:1rem;color:var(--text-secondary);margin-bottom:16px}.event-meta{display:grid;gap:6px;font-size:.95rem}.event-meta dt{color:var(--text-muted);font-size:.825rem}.event-meta dd{color:var(--text-primary);font-weight:500}.closed-notice{background:var(--teal-light);border:1px solid var(--teal-border);border-radius:var(--radius);padding:20px;text-align:center;margin-bottom:24px}.closed-notice p{color:var(--text-secondary);margin-top:8px}.disclaimer{font-size:.825rem;color:var(--text-muted);background:var(--warn-bg);border-left:3px solid #d97706;padding:12px 16px;border-radius:0 var(--radius) var(--radius) 0;margin-bottom:24px}.registration-form{display:flex;flex-direction:column;gap:20px}fieldset{border:1px solid var(--border);border-radius:var(--radius);padding:16px;background:var(--white)}legend{font-weight:600;font-size:.95rem;color:var(--teal-dark);padding:0 6px}.field{display:flex;flex-direction:column;gap:4px}label{font-size:.9rem;font-weight:600;color:var(--text-primary)}.label-secondary{font-weight:400;color:var(--text-secondary)}.required-mark{color:var(--error);margin-left:2px}input[type=text],input[type=email],input[type=tel],textarea,select{width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:1rem;font-family:var(--font);color:var(--text-primary);background:var(--white);transition:border-color .15s,box-shadow .15s;-webkit-appearance:none;-moz-appearance:none;appearance:none}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px #00808033}input[aria-invalid=true],textarea[aria-invalid=true],select[aria-invalid=true]{border-color:var(--error)}textarea{min-height:96px;resize:vertical}select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24'%3E%3Cpath fill='%236b7280' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:36px}.checkbox-row{display:flex;align-items:flex-start;gap:10px;cursor:pointer}.checkbox-row input[type=checkbox]{width:20px;height:20px;min-height:unset;flex-shrink:0;margin-top:2px;accent-color:var(--teal);cursor:pointer}.checkbox-row .checkbox-label{font-size:.875rem;color:var(--text-primary);line-height:1.5}.field-hint{font-size:.8rem;color:var(--text-muted)}.field-error{font-size:.8rem;color:var(--error);font-weight:500}.sensitive-warn{font-size:.8rem;color:var(--warn);background:var(--warn-bg);border:1px solid #fcd34d;border-radius:var(--radius);padding:8px 12px}.collection-notice{font-size:.8rem;color:var(--text-muted);background:var(--teal-light);border:1px solid var(--teal-border);border-radius:var(--radius);padding:12px 16px;line-height:1.5}.collection-notice a{color:var(--teal-dark)}.error-summary{background:var(--error-bg);border:1px solid #f5c6c6;border-radius:var(--radius);padding:16px;margin-bottom:8px}.error-summary h2{font-size:.95rem;color:var(--error);margin-bottom:8px}.error-summary ul{list-style:none;display:flex;flex-direction:column;gap:4px}.error-summary li a{color:var(--error);font-size:.875rem}.btn-submit{min-height:52px;background:var(--teal);color:var(--white);border:none;border-radius:var(--radius);font-size:1.1rem;font-weight:700;font-family:var(--font);cursor:pointer;transition:background .15s;padding:14px 24px;width:100%}.btn-submit:hover:not(:disabled){background:var(--teal-dark)}.btn-submit:focus-visible{outline:3px solid var(--teal-dark);outline-offset:2px}.btn-submit:disabled{opacity:.6;cursor:not-allowed}.hp-field{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.state-card{background:var(--white);border-radius:var(--radius);padding:32px 24px;text-align:center;box-shadow:var(--shadow);margin-top:16px}.state-card.success{border-top:4px solid var(--success)}.state-card.ambiguous{border-top:4px solid #d97706}.state-card.error{border-top:4px solid var(--error)}.state-card h2{font-size:1.3rem;margin-bottom:8px}.state-card p{color:var(--text-secondary);font-size:.95rem;margin-bottom:8px}.state-card.success h2{color:var(--success)}.state-card.ambiguous h2{color:var(--warn)}.state-card.error h2{color:var(--error)}.site-footer{background:var(--teal-dark);color:#ffffffd9;padding:24px;text-align:center;font-size:.85rem;margin-top:48px}.site-footer a{color:#ffffffe6}.spinner{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;vertical-align:middle;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.spinner{animation:none;border-top-color:#fffc}*{transition:none!important;scroll-behavior:auto!important}}@media (min-width: 768px){.site-main{padding:32px 24px 64px}.event-meta{grid-template-columns:auto 1fr}}