.demo-page{min-height:100dvh;display:flex;flex-direction:column}.demo-main{flex:1;position:relative;z-index:1;padding-top:var(--nav-h)}.demo-plate{position:fixed;inset:0;z-index:0;background:url(/assets/ai/plate-c.webp) center / cover no-repeat;opacity:.42;pointer-events:none}.demo-nav{position:sticky}.back{display:inline-flex;align-items:center;gap:7px;font-size:.875rem;color:var(--muted)}.back:hover{color:var(--champagne)}.back svg{width:16px;height:16px}.demo-head{text-align:center;padding:var(--s5) 0 var(--s2);max-width:620px;margin-inline:auto}.demo-head h1{font-size:clamp(2rem,4.4vw,3.1rem);margin-bottom:14px}.demo-head p{color:var(--muted)}.book{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:var(--s4);align-items:start;padding:var(--s4) 0 var(--s6)}.card{background:#0b0e0bc7;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:var(--r-card);padding:clamp(24px,3vw,32px);box-shadow:var(--shadow);min-width:0}.card h2{font-size:1.25rem;margin-bottom:4px}.card .sub{color:var(--muted);font-size:.85rem;margin-bottom:22px}.field{margin-bottom:18px}.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:7px}.field label .req{color:var(--gold)}.field input,.field select{width:100%;background:#070907a6;border:1px solid var(--line);border-radius:var(--r-input);padding:12px 14px;color:var(--bone);font:inherit;font-size:.9rem;outline:none;transition:border-color .2s}.field input::placeholder{color:var(--muted-2)}.field input:focus,.field select:focus{border-color:var(--gold)}.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239ea49f' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}.field.invalid input,.field.invalid select{border-color:#d66}.field .err{color:#e08a8a;font-size:.75rem;margin-top:5px;display:none}.field.invalid .err{display:block}.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}.slot-note{font-size:.8rem;color:var(--muted-2);margin-bottom:16px}.date-strip{display:flex;gap:8px;overflow-x:auto;padding-bottom:10px;margin-bottom:18px;scrollbar-width:thin}.date-strip::-webkit-scrollbar{height:6px}.date-strip::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:99px}.date-btn{flex:none;min-width:64px;text-align:center;background:#070907a6;border:1px solid var(--line);border-radius:var(--r-input);padding:9px 8px;color:var(--bone);transition:border-color .2s,background .2s}.date-btn:hover{border-color:var(--gold)}.date-btn.sel{background:var(--gold);color:var(--ink-on-gold);border-color:var(--gold)}.date-btn .dow{display:block;font-size:.65rem;color:var(--muted);letter-spacing:.04em;text-transform:uppercase}.date-btn.sel .dow{color:#14100599}.date-btn .dnum{display:block;font-family:var(--font-display);font-weight:600;font-size:1.1rem;margin-top:2px}.date-btn .mon{display:block;font-size:.62rem;color:var(--muted)}.date-btn.sel .mon{color:#14100599}.slots{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.slot{background:#070907a6;border:1px solid var(--line);border-radius:var(--r-input);padding:10px 6px;text-align:center;color:var(--bone);font-family:var(--font-display);font-weight:600;font-size:.82rem;transition:border-color .2s,background .2s,color .2s}.slot:hover{border-color:var(--gold)}.slot.sel{background:var(--gold);color:var(--ink-on-gold);border-color:var(--gold)}.slot-chosen{margin-top:16px;font-size:.85rem;color:var(--muted);min-height:1.4em}.slot-chosen b{color:var(--gold)}.btn-block{width:100%}.btn:disabled{opacity:.55;cursor:not-allowed}.form-msg{font-size:.85rem;margin-top:14px;display:none}.form-msg.show{display:block}.form-msg.error{color:#e08a8a}.success{display:none;text-align:center;padding:50px 30px;max-width:560px;margin:20px auto 80px}.success.show{display:block}.success .ic{width:74px;height:74px;border-radius:50%;background:var(--gold-dim);display:grid;place-items:center;margin:0 auto 22px}.success .ic svg{width:38px;height:38px;color:var(--gold)}.success h2{font-size:1.7rem;margin-bottom:12px}.success p{color:var(--muted);max-width:40ch;margin:0 auto 8px}.success .when{color:var(--gold);font-weight:600;font-family:var(--font-display);font-size:1.1rem;margin:10px 0 18px}.gold{color:var(--gold)}.demo-foot{position:relative;z-index:1;border-top:1px solid var(--line);padding:30px 0;text-align:center;color:var(--muted-2);font-size:.8rem}@media(max-width:880px){.book{grid-template-columns:minmax(0,1fr);gap:26px}}@media(max-width:460px){.row2{grid-template-columns:1fr}}@media(max-width:380px){.slots{grid-template-columns:repeat(2,1fr)}}