:root{--otp-green:#449028;--otp-green-dark:#35701f;--otp-green-light:#5cb833;--otp-green-tint:#cbe6c0;--otp-green-tint-text:#2f6b1c;--primary:var(--otp-green);--primary-hover:var(--otp-green-dark);--primary-light:var(--otp-green-light);--primary-foreground:#fff;--accent:var(--otp-green-tint);--accent-foreground:var(--otp-green-tint-text);--destructive:#b91c1c;--destructive-bg:#fee2e2;--destructive-foreground:#991b1b;--warning-bg:#fef3c7;--warning-foreground:#92400e;--success-bg:var(--otp-green-tint);--success-foreground:var(--otp-green-tint-text);--background:#fafaf9;--muted:#f5f5f4;--border:#e7e5e4;--input:#d6d3d1;--muted-foreground:#57534e;--muted-foreground-light:#78716c;--foreground:#1c1917;--card:#fff;--card-foreground:#1c1917;--ring:var(--otp-green);--space-xs:4px;--space-sm:8px;--space-md:12px;--space-lg:16px;--space-xl:24px;--space-xxl:32px;--space-xxxl:48px;--radius-input:8px;--radius-list-item:12px;--radius-card:16px;--radius-pill:999px}*{box-sizing:border-box}body{background:var(--background);color:var(--foreground);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}a,button,.card,.list li{transition:background-color .18s,border-color .18s,color .18s,box-shadow .18s,opacity .18s}.text-display{font-size:28px;font-weight:700;line-height:34px}.text-heading{font-size:20px;font-weight:600;line-height:26px}.text-body{font-size:16px;font-weight:400;line-height:22px}.text-body-strong{font-size:16px;font-weight:600;line-height:22px}.text-caption{color:var(--muted-foreground);font-size:13px;font-weight:400;line-height:18px}.text-label{text-transform:uppercase;font-size:13px;font-weight:600;line-height:16px}.page{max-width:720px;margin:0 auto;padding:2rem 1.5rem}h1{font-size:1.75rem}.brand-heading{color:var(--primary)}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);padding:var(--space-lg);box-shadow:0 1px 2px #0000000a}.list{flex-direction:column;gap:.75rem;padding:0;list-style:none;display:flex}.list li{border-radius:var(--radius-card);border:1px solid var(--border);background:#fff;padding:1rem}.list a{color:inherit;text-decoration:none;display:block}.list a:hover{text-decoration:underline}.badge{border-radius:var(--radius-pill);text-transform:uppercase;padding:.15rem .6rem;font-size:13px;font-weight:600;display:inline-block}.empty-state,.error-state{text-align:center;align-items:center;gap:var(--space-sm);padding:var(--space-xxl) var(--space-lg);flex-direction:column;display:flex}.empty-state-icon,.error-state-icon{border-radius:var(--radius-pill);background:var(--muted);width:40px;height:40px;color:var(--muted-foreground);justify-content:center;align-items:center;display:flex}.error-state-icon{background:var(--destructive-bg);color:var(--destructive-foreground)}.empty-state-title,.error-state-title{font-size:20px;font-weight:600;line-height:26px}.empty-state-description,.error-state-description{color:var(--muted-foreground);max-width:32rem;font-size:16px}.error{color:var(--destructive)}a:focus-visible,button:focus-visible{outline:2px solid var(--ring);outline-offset:2px}.rsvp-form{flex-direction:column;gap:.75rem;max-width:360px;margin-top:1.5rem;display:flex}.rsvp-form label{flex-direction:column;gap:.25rem;font-size:.9rem;display:flex}.rsvp-form input,.input{border:1px solid var(--input);border-radius:var(--radius-input);padding:.5rem;font-size:1rem}.rsvp-form input:focus,.input:focus{border-color:var(--ring);outline:none;box-shadow:0 0 0 3px #44902833}.input-error{border-color:var(--destructive)}button,.btn-primary{background:var(--primary);color:#fff;border-radius:var(--radius-input);cursor:pointer;border:none;justify-content:center;align-self:flex-start;align-items:center;min-height:44px;padding:.6rem 1.25rem;font-size:1rem;text-decoration:none;display:inline-flex}button:hover:not(:disabled),.btn-primary:hover:not(:disabled){background:var(--primary-hover)}button:disabled,.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{min-height:44px;color:var(--foreground);border:1px solid var(--border);border-radius:var(--radius-input);cursor:pointer;background:0 0;justify-content:center;align-self:flex-start;align-items:center;padding:.6rem 1.25rem;font-size:1rem;text-decoration:none;display:inline-flex}.btn-secondary:hover:not(:disabled){background:var(--muted)}.btn-ghost{min-height:44px;color:var(--primary);border-radius:var(--radius-input);cursor:pointer;background:0 0;border:none;justify-content:center;align-self:flex-start;align-items:center;padding:.6rem 1.25rem;font-size:1rem;text-decoration:none;display:inline-flex}.btn-ghost:hover:not(:disabled){background:var(--muted)}.positive-icon{border-radius:var(--radius-pill);background:var(--success-bg);width:40px;height:40px;color:var(--success-foreground);justify-content:center;align-items:center;display:flex}.isolated-page{min-height:100vh;padding:var(--space-lg);justify-content:center;align-items:center;display:flex}.isolated-card{width:100%;max-width:400px}.landing-page{--landing-max:1100px}.landing-nav{z-index:10;align-items:center;gap:var(--space-xl);padding:var(--space-md) var(--space-xl);background:var(--primary);color:#fff;display:flex;position:sticky;top:0}.landing-nav-brand{color:#fff;white-space:nowrap;margin-right:auto;font-weight:700;text-decoration:none}.landing-nav-links{align-items:center;gap:var(--space-lg);flex-wrap:wrap;display:flex}.landing-nav-links a{color:#fff;opacity:.92;font-size:.95rem;font-weight:500;text-decoration:none}.landing-nav-links a:hover{opacity:1;text-decoration:underline}.landing-nav-cta{color:var(--primary-hover);white-space:nowrap;background:#fff;min-height:36px;padding:.4rem 1rem}.landing-nav-cta:hover{background:var(--muted)}@media (width<=860px){.landing-nav{flex-wrap:wrap}.landing-nav-brand{width:100%}}.landing-hero{background-position:50% 35%;background-size:cover;align-items:flex-end;min-height:560px;display:flex;position:relative}.landing-hero:before{content:"";background:linear-gradient(#0000001a 0%,#000000c7 100%);position:absolute;inset:0}.landing-hero-overlay{z-index:1;width:100%;max-width:var(--landing-max);padding:var(--space-xxxl) var(--space-xl);color:#fff;margin:0 auto;position:relative}.landing-hero-title{margin:0 0 var(--space-sm);text-shadow:0 1px 3px #00000059;font-size:44px;font-weight:700;line-height:1.1}.landing-hero-lead{max-width:40rem;margin:0 0 var(--space-xl);text-shadow:0 1px 3px #00000059;font-size:19px;line-height:1.5}@media (width<=640px){.landing-hero-title{font-size:32px}}.download-buttons{gap:var(--space-md);flex-wrap:wrap;display:flex}.download-btn{min-width:200px}.download-btn[aria-disabled=true]{opacity:.75;cursor:not-allowed}.landing-meta-bar{gap:var(--space-xl);max-width:var(--landing-max);padding:var(--space-lg) var(--space-xl);background:var(--card);border-bottom:1px solid var(--border);flex-wrap:wrap;margin:0 auto;display:flex}.landing-meta-item{align-items:center;gap:var(--space-sm);display:flex}.landing-meta-icon{border-radius:var(--radius-pill);background:var(--accent);width:36px;height:36px;color:var(--primary);flex-shrink:0;justify-content:center;align-items:center;display:flex}.landing-section{max-width:var(--landing-max);padding:var(--space-xxxl) var(--space-xl);margin:0 auto}.landing-section-title{margin:0 0 var(--space-lg);padding-bottom:var(--space-sm);border-bottom:3px solid var(--primary);font-size:26px;font-weight:700;display:inline-block}.landing-section-subtitle{margin:var(--space-xl) 0 var(--space-md);font-size:18px;font-weight:600}.landing-about-card{gap:var(--space-md);flex-direction:column;max-width:42rem;display:flex}.landing-speakers-program-grid{gap:var(--space-xxl);grid-template-columns:2fr 1fr;align-items:start;display:grid}@media (width<=900px){.landing-speakers-program-grid{grid-template-columns:1fr}}.landing-topic-pills{gap:var(--space-sm);margin-bottom:var(--space-lg);flex-wrap:wrap;display:flex}.landing-topic-pill{background:var(--primary);color:#fff;text-transform:none;padding:.4rem .9rem;font-size:14px}.landing-speaker-grid{gap:var(--space-lg);grid-template-columns:repeat(auto-fit,minmax(130px,160px));justify-content:start;display:grid}.landing-speaker-grid-single{margin-bottom:var(--space-md)}.landing-speaker-card{gap:var(--space-sm);flex-direction:column;display:flex}.landing-speaker-photo{aspect-ratio:1;object-fit:cover;border-radius:var(--radius-card);background:var(--muted);width:100%}.landing-program-card{flex-direction:column;display:flex}.landing-program-time{color:var(--primary);margin:0 0 2px}.landing-gallery-grid{gap:var(--space-lg);grid-template-columns:repeat(auto-fit,minmax(280px,1fr));display:grid}.landing-gallery-photo{aspect-ratio:3/2;object-fit:cover;border-radius:var(--radius-card);width:100%}.landing-download-cta{text-align:center;background:var(--muted)}.landing-download-cta .download-buttons{justify-content:center}