body{margin:0;padding:0;font-family:Arial,sans-serif;background:linear-gradient(135deg,#fdf2f8,#faf5ff);min-height:100vh}*{box-sizing:border-box}.container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem}.card{background:#fff;border-radius:1.5rem;box-shadow:0 25px 50px -12px #00000040;overflow:hidden;max-width:28rem;width:100%;position:relative}.card-body{padding:2rem;text-align:center;position:relative;z-index:10}.heart-icon{width:2rem;height:2rem;color:#f472b6;margin:0 auto 1rem;fill:currentColor}.gradient-bg{background:linear-gradient(135deg,#ec4899,#a855f7)}.btn{width:100%;padding:1rem 1.5rem;border-radius:1rem;font-weight:600;font-size:1.125rem;border:none;cursor:pointer;transition:all .3s;font-family:Arial,sans-serif}.btn:hover{transform:scale(1.02)}.btn:disabled{background:#d1d5db;color:#6b7280;cursor:not-allowed;transform:none}.btn-primary{background:linear-gradient(135deg,#ec4899,#a855f7);color:#fff}.btn-secondary{background:transparent;color:#6b7280}.input{width:100%;padding:.75rem 2.5rem .75rem 1rem;border:1px solid #e5e7eb;border-radius:.75rem;font-size:1rem;outline:none;transition:all .3s;text-align:right;font-family:Arial,sans-serif}.input:focus{border-color:#f472b6;box-shadow:0 0 0 3px #f472b61a}.rsvp-option{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.5rem;border-radius:1rem;border:2px solid #e5e7eb;background:#fff;cursor:pointer;transition:all .3s}.rsvp-option:hover{border-color:#d1d5db}.rsvp-option.selected-accept{border-color:#10b981;background:#f0fdf4;color:#047857}.rsvp-option.selected-decline{border-color:#ef4444;background:#fef2f2;color:#dc2626}.grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.space-y-4>*+*{margin-top:1rem}.space-y-6>*+*{margin-top:1.5rem}.space-y-8>*+*{margin-top:2rem}.text-center{text-align:center}.text-right{text-align:right}.mb-2{margin-bottom:.5rem}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}.mb-8{margin-bottom:2rem}.text-lg{font-size:1.125rem}.text-xl{font-size:1.25rem}.text-2xl{font-size:1.5rem}.text-sm{font-size:.875rem}.font-bold{font-weight:700}.font-semibold{font-weight:600}.text-gray-600{color:#6b7280}.text-gray-700{color:#374151}.text-gray-800{color:#1f2937}.text-pink-500{color:#ec4899}.text-pink-600{color:#db2777}.text-green-500{color:#10b981}.header-bg{background:linear-gradient(135deg,#fce7f3,#f3e8ff);padding:1.5rem;border-bottom:1px solid #e5e7eb}.icon{width:1.25rem;height:1.25rem;margin-right:.5rem}.icon-lg{width:2rem;height:2rem}.icon-xl{width:4rem;height:4rem}.relative{position:relative}.absolute{position:absolute}.input-icon{position:absolute;right:.75rem;top:.75rem;width:1.25rem;height:1.25rem;color:#9ca3af}