/* =========================================================
   VenAmCham - Mesas de Trabajo | Registro
   Tipografía: Poppins
   Paleta:
     Navy: #0A1334
     Accent: #1E2A5E
     Light Gray: #F2F2F3
     White: #FFFFFF
     Red Button: #6B1315
     Text: #333333
   ========================================================= */

:root{
  --navy:#0A1334;
  --accent:#1E2A5E;
  --gray:#F2F2F3;
  --white:#FFFFFF;
  --red:#6B1315;
  --text:#333333;

  --shadow: 0 10px 30px rgba(10,19,52,.12);
  --shadow-soft: 0 6px 18px rgba(10,19,52,.10);
  --radius: 14px;
  --radius-sm: 10px;

  --border: rgba(10,19,52,.12);
  --border-strong: rgba(10,19,52,.18);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:'Poppins', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, var(--gray) 0%, #ffffff 60%);
  color:var(--text);
}

.container{
  width:min(1040px, calc(100% - 32px));
  margin: 28px auto 60px;
}

/* Header */
.header{
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}
.header:before{
  content:"";
  position:absolute;
  top:-120px;
  right:-120px;
  width:280px;
  height:280px;
  background: radial-gradient(circle at 30% 30%, rgba(30,42,94,.25), rgba(30,42,94,0));
  transform: rotate(18deg);
}
.header h1{
  margin:0 0 6px;
  color: var(--navy);
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: .2px;
}
.header p{
  margin:0;
  color: rgba(51,51,51,.85);
  font-size: 14.5px;
}

/* Section titles */
section{
  margin-top: 18px;
}
h2{
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 16px;
  font-weight: 600;
}

/* Cards grid (Mesas) */
.cards-grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.card{
  width:100%;
  text-align:left;
  background: var(--white);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 14px 12px;
  box-shadow: var(--shadow-soft);
  cursor:pointer;
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
  position:relative;
}

.card:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
}

.card.selected{
  border-color: rgba(107,19,21,.55);
  box-shadow: 0 12px 34px rgba(107,19,21,.18);
}

.card.selected:after{
  content:"Seleccionada";
  position:absolute;
  top:12px;
  right:12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--white);
  background: var(--red);
  padding: 6px 10px;
  border-radius: 999px;
  letter-spacing: .2px;
}

.card-title{
  font-weight: 600;
  color: var(--navy);
  font-size: 14.8px;
  line-height: 1.25;
  margin-bottom: 6px;
}

.card-meta{
  font-size: 12.2px;
  color: rgba(51,51,51,.72);
  margin-bottom: 8px;
}

.card-small{
  font-size: 12.8px;
  color: rgba(51,51,51,.85);
  line-height: 1.35;
}

/* Form block */
#formSection{
  background: var(--white);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 16px 10px;
  box-shadow: var(--shadow-soft);
}

.grid2{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 14px;
}

.field label{
  display:block;
  font-size: 12.6px;
  font-weight: 500;
  color: rgba(51,51,51,.86);
  margin: 0 0 6px;
}

.field input,
.field select{
  width:100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 11px 12px;
  font-family: inherit;
  font-size: 13.5px;
  color: var(--text);
  outline: none;
  transition: border-color .12s ease, box-shadow .12s ease;
  background: #fff;
}

.field input:focus,
.field select:focus{
  border-color: rgba(30,42,94,.45);
  box-shadow: 0 0 0 4px rgba(30,42,94,.10);
}

.field input::placeholder{
  color: rgba(51,51,51,.45);
}

/* Actions */
.actions{
  margin-top: 14px;
  display:flex;
  gap: 10px;
  align-items:center;
}

button#btnEnviar,
.actions button{
  appearance:none;
  border: none;
  border-radius: 12px;
  padding: 12px 16px;
  font-family: inherit;
  font-weight: 600;
  font-size: 14px;
  cursor:pointer;
  background: var(--red);
  color: var(--white);
  transition: transform .12s ease, opacity .12s ease, box-shadow .12s ease;
  box-shadow: 0 10px 24px rgba(107,19,21,.20);
}

button#btnEnviar:hover{ transform: translateY(-1px); }
button#btnEnviar:active{ transform: translateY(0); opacity:.95; }

button#btnEnviar[disabled]{
  opacity:.6;
  cursor:not-allowed;
  box-shadow:none;
}

/* Messages */
.msg{
  margin-top: 12px;
  padding: 12px 12px;
  border-radius: 12px;
  font-size: 13.5px;
  border: 1px solid var(--border);
}

.msg.ok{
  background: rgba(16, 185, 129, .10);
  border-color: rgba(16, 185, 129, .25);
  color: #065f46;
}

.msg.err{
  background: rgba(239, 68, 68, .10);
  border-color: rgba(239, 68, 68, .25);
  color: #7f1d1d;
}

.error{
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(239, 68, 68, .10);
  border: 1px solid rgba(239, 68, 68, .25);
  color: #7f1d1d;
  font-size: 13px;
}

.hidden{ display:none !important; }

/* Overlay */
.overlay{
  position: fixed;
  inset: 0;
  background: rgba(10,19,52,.45);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index: 9999;
  backdrop-filter: blur(2px);
}

.spinner{
  background: var(--white);
  color: var(--navy);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 18px;
  min-width: 220px;
  text-align:center;
  box-shadow: var(--shadow);
  font-weight: 600;
  position:relative;
}

.spinner:before{
  content:"";
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 3px solid rgba(30,42,94,.25);
  border-top-color: var(--accent);
  display:inline-block;
  margin-right: 10px;
  vertical-align: -4px;
  animation: spin .9s linear infinite;
}

@keyframes spin{
  to{ transform: rotate(360deg); }
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(10,19,52,.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  backdrop-filter: blur(3px);
}

.modal-content {
  background: var(--white);
  padding: 20px 24px;
  border-radius: var(--radius);
  width: 90%;
  max-width: 500px;
  position: relative;
  box-shadow: var(--shadow);
  max-height: 90vh;
  overflow-y: auto;
}

.close-modal {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 24px;
  cursor: pointer;
  color: var(--text);
  font-weight: bold;
}

.close-modal:hover {
  color: var(--red);
}

.modal-body p {
  font-size: 13.5px;
  margin-bottom: 10px;
  color: var(--text);
}

.modal-body strong {
  color: var(--accent);
}

.btn-ver-mas {
  display: inline-block;
  margin-top: 10px;
  font-size: 12px;
  color: var(--accent);
  background: none;
  border: 1px solid var(--accent);
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-ver-mas:hover {
  background: var(--accent);
  color: var(--white);
}

/* Responsive */
@media (max-width: 980px){
  .cards-grid{ grid-template-columns: 1fr; }
  .grid2{ grid-template-columns: 1fr; }
}

@media (max-width: 480px){
  .container{ width: calc(100% - 22px); margin-top: 18px; }
  .header{ padding: 16px 16px; }
  .card{ padding: 12px; }
}