:root{--bg:#080f14;--panel:#111820;--panel2:#0b1117;--cyan:#00c2ff;--cyan2:#58d5ff;--silver:#d9e1ea;--muted:#8e98a8;--line:#27313a;--dark:#061017}
*{box-sizing:border-box;margin:0;padding:0}
html,body{min-height:100%}
body{font-family:"Space Grotesk","Sora",Arial,Helvetica,sans-serif;background:radial-gradient(circle at 50% 0%,rgba(0,194,255,.08),transparent 34%),#030608;color:var(--silver);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:22px}
.page-shell{width:100%;max-width:760px}
.reserva-card{background:rgba(17,24,32,.98);border:1px solid rgba(0,194,255,.24);border-radius:22px;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.55),0 0 34px rgba(0,194,255,.04)}
.brand-header{display:flex;align-items:center;gap:15px;padding:15px 20px;background:linear-gradient(135deg,#05090d 0%,#111820 68%,#0b141b 100%);border-bottom:1px solid rgba(0,194,255,.22)}
.logo-negocio{width:72px;height:72px;object-fit:cover;border-radius:14px;box-shadow:0 0 22px rgba(0,194,255,.12)}
.eyebrow{font-size:10px;font-weight:700;letter-spacing:.28em;color:var(--muted);margin-bottom:4px}
.brand-copy h1{font-size:23px;letter-spacing:.06em;color:var(--cyan);line-height:1.05}
.subtitle{margin-top:5px;font-size:12.5px;color:var(--silver)}
.section-heading{padding:22px 22px 12px;text-align:center;background:var(--panel2)}
.section-label{display:inline-block;color:var(--cyan);font-size:10px;font-weight:800;letter-spacing:.17em;margin-bottom:10px}
.section-heading h2,.calendar-screen h2{font-size:22px;color:#fff;margin-bottom:7px}
.section-heading p,.helper{color:var(--muted);font-size:13px;line-height:1.5}
.form-grid{padding:18px 22px 22px;background:var(--panel2);display:grid;grid-template-columns:1fr 1fr;gap:14px}
.campo{display:flex;flex-direction:column;gap:7px}.campo-full{grid-column:1/-1}
.campo label{font-size:12px;font-weight:700;color:var(--silver)}
.campo input{width:100%;background:#091017;color:#fff;border:1px solid #34404a;border-radius:13px;padding:13px 14px;font-size:14px;outline:none;transition:.2s ease}
.campo input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,194,255,.1)}
.primary-button{min-height:46px;border:0;border-radius:13px;background:var(--cyan);color:var(--dark);font-weight:800;font-size:14px;cursor:pointer;transition:.2s ease}
.primary-button:hover,.dia-btn:hover,.hora-btn:hover{transform:translateY(-1px);box-shadow:0 0 18px rgba(0,194,255,.2)}
.calendar-screen{padding:22px;background:var(--panel2);text-align:center}
.dias-disponibles,.horas-disponibles{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:18px}
.dia-btn,.hora-btn{border:1px solid #34404a;background:#111820;color:var(--silver);border-radius:12px;cursor:pointer;transition:.2s ease}
.dia-btn{width:72px;min-height:70px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}.dia-btn span{font-size:11px;color:var(--muted)}.dia-btn strong{font-size:20px}
.dia-btn.seleccionado{border-color:var(--cyan);color:#fff;box-shadow:0 0 0 2px rgba(0,194,255,.08)}
.hora-btn{padding:11px 15px;font-weight:800}.hora-btn:focus{background:var(--cyan);color:var(--dark);border-color:var(--cyan)}
.success-box{margin:0 22px 22px;padding:15px;border:1px solid rgba(0,194,255,.28);border-radius:14px;background:#091017;color:var(--silver);text-align:center;font-size:13px;line-height:1.5}
.brand-footer{min-height:34px;padding:9px 16px;display:flex;align-items:center;justify-content:center;gap:8px;background:#05090d;color:var(--cyan);font-size:8.5px;letter-spacing:.16em;border-top:1px solid rgba(0,194,255,.12)}
.brand-footer i{width:3px;height:3px;border-radius:50%;background:var(--cyan);box-shadow:0 0 6px rgba(0,194,255,.7)}
@media(max-width:600px){body{padding:0;background:var(--bg)}.page-shell{max-width:none}.reserva-card{min-height:100dvh;border-radius:0;border:0}.brand-header{padding:12px 14px}.logo-negocio{width:58px;height:58px}.brand-copy h1{font-size:18px}.subtitle{font-size:10.5px}.section-heading{padding:18px 14px 10px}.section-heading h2,.calendar-screen h2{font-size:20px}.form-grid{padding:16px 14px 20px;grid-template-columns:1fr}.campo-full{grid-column:auto}.calendar-screen{padding:18px 14px}.brand-footer{font-size:7.5px;letter-spacing:.12em;gap:6px}}