:root{--bg: #f5f5f7;--text: #1d1d1f;--muted: rgba(29, 29, 31, .65);--card: rgba(255, 255, 255, .78);--card-border: rgba(0, 0, 0, .08);--shadow: 0 18px 50px rgba(0, 0, 0, .1);--field-bg: rgba(255, 255, 255, .92);--field-border: rgba(0, 0, 0, .12);--focus-ring: rgba(0, 122, 255, .35);--primary: #007aff;--primary-hover: #006ae6;--radius: 18px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,SF Pro Text,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:radial-gradient(1200px 700px at 50% -10%,#ffffff 0%,var(--bg) 55%);min-height:100vh}.page{min-height:100vh;display:grid;place-items:center;padding:28px 16px}.card{width:100%;max-width:460px;padding:26px 22px 22px;border-radius:var(--radius);background:var(--card);border:1px solid var(--card-border);box-shadow:var(--shadow);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);outline:2px solid rgba(0,122,255,.25);outline-offset:2px}.title{text-align:center;font-size:22px;font-weight:700;letter-spacing:-.02em;margin-bottom:18px}.form{display:grid;gap:14px}.field{display:grid;gap:8px}.label{font-size:13px;font-weight:600;color:var(--muted)}.input{width:100%;padding:12px;font-size:15px;color:var(--text);background:var(--field-bg);border:1px solid var(--field-border);border-radius:12px;outline:none;transition:box-shadow .18s ease,border-color .18s ease}.input::placeholder{color:#1d1d1f59}.input:focus{border-color:#007aff8c;box-shadow:0 0 0 4px var(--focus-ring)}.btn{margin-top:4px;width:100%;padding:12px 14px;font-size:15px;font-weight:700;letter-spacing:-.01em;background:linear-gradient(180deg,#0a84ff 0%,var(--primary) 100%);color:#fff;border:1px solid rgba(0,0,0,.08);border-radius:14px;cursor:pointer}.btn:hover{background:linear-gradient(180deg,#0a84ff 0%,var(--primary-hover) 100%)}.btn:active{transform:translateY(1px) scale(.99)}.hint{text-align:center;font-size:12px;color:#1d1d1f8c;margin-top:-4px}@media (max-width: 380px){.card{padding:22px 18px;border-radius:16px}.title{font-size:20px}}.total{display:flex;align-items:center;justify-content:space-between;padding:12px;border-radius:12px;background:#ffffffa6;border:1px solid rgba(0,0,0,.08)}.total-text{font-size:13px;font-weight:700;color:#1d1d1fbf}.total-price{font-size:16px;font-weight:800;letter-spacing:-.01em}.error{display:block;min-height:14px;font-size:12px;color:#ff3b30;margin-top:-2px}.input.is-error{border-color:#ff3b30b3;box-shadow:0 0 0 4px #ff3b302e}.success{text-align:center;font-size:13px;color:#1d1d1fbf;min-height:18px}