:root{font-family:Vazirmatn,Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh;background:linear-gradient(135deg,#1a1a2e,#16213e);color:#fff;direction:rtl}#root{width:100%;max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.container{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%}.card{background:#ffffff0d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:16px;padding:2rem;box-shadow:0 4px 30px #0000001a;border:1px solid rgba(255,255,255,.1);width:100%;max-width:400px;display:flex;flex-direction:column;gap:1.5rem;animation:fadeIn .5s ease-out}.input-group{display:flex;flex-direction:column;gap:.5rem;text-align:right}label{font-size:.9rem;color:#aaa;font-weight:500}input{padding:.8rem 1rem;border-radius:8px;border:1px solid rgba(255,255,255,.2);background:#0003;color:#fff;font-size:1rem;outline:none;transition:all .3s ease}input:focus{border-color:#646cff;box-shadow:0 0 0 2px #646cff33}button{padding:.8rem 1.5rem;border-radius:8px;border:none;background:linear-gradient(90deg,#646cff,#535bf2);color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}button:hover{transform:translateY(-2px);box-shadow:0 4px 12px #535bf266}button:active{transform:translateY(0)}button:disabled{opacity:.6;cursor:not-allowed;transform:none}.error-message{color:#ff6b6b;font-size:.9rem;margin-top:-.5rem}.coupon-display{margin-top:1rem;padding:1.5rem;background:linear-gradient(135deg,gold,orange);color:#000;border-radius:12px;font-weight:700;font-size:1.5rem;letter-spacing:2px;box-shadow:0 4px 15px #ffd7004d;animation:popIn .4s cubic-bezier(.175,.885,.32,1.275);cursor:pointer}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes popIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}h1{font-size:2rem;margin-bottom:.5rem;background:linear-gradient(to right,#fff,#aaa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}