/* ── Variables ── */
:root {
  --verde-oscuro:  #2d4a1e;
  --verde-medio:   #4a7c3f;
  --verde-claro:   #8bc34a;
  --dorado:        #c9a84c;
  --dorado-claro:  #e8c97a;
  --crema:         #f5f0e8;
  --crema-oscura:  #e8e0d0;
  --texto:         #1e2d16;
  --texto-suave:   #6b7c5f;
  --blanco:        #ffffff;
  --sombra-sm:     0 2px 8px rgba(45,74,30,0.10);
  --sombra-md:     0 4px 16px rgba(45,74,30,0.14);
  --radio-sm:      10px;
  --radio-md:      16px;
  --radio-lg:      22px;
}

/* ── Reset ── */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html,body { height:100%; font-family:'Segoe UI',system-ui,sans-serif; background:var(--crema); color:var(--texto); overflow:hidden; -webkit-tap-highlight-color:transparent; }
button { font-family:inherit; cursor:pointer; }
.hidden { display:none !important; }

/* ── Splash ── */
#splash {
  position:fixed; inset:0; z-index:100;
  background:linear-gradient(160deg,var(--verde-oscuro) 0%,var(--verde-medio) 100%);
  display:flex; align-items:center; justify-content:center;
}
.splash-content { text-align:center; padding:20px; }
.splash-img { width:100px; height:100px; border-radius:24px; margin-bottom:16px; box-shadow:0 8px 24px rgba(0,0,0,0.3); }
.splash-title { font-size:44px; font-weight:700; color:var(--blanco); letter-spacing:-1px; }
.splash-sub { font-size:13px; color:rgba(255,255,255,0.65); margin-top:6px; letter-spacing:1.5px; text-transform:uppercase; }
.splash-loader { display:flex; gap:8px; justify-content:center; margin-top:36px; }
.splash-loader span { width:8px; height:8px; border-radius:50%; background:var(--dorado); animation:pulso 1.2s ease-in-out infinite; }
.splash-loader span:nth-child(2) { animation-delay:.2s; }
.splash-loader span:nth-child(3) { animation-delay:.4s; }

/* ── Paywall ── */
#paywall {
  position: fixed; inset: 0; z-index: 90;
  background: var(--crema);
  display: flex; flex-direction: column;
  max-width: 480px; margin: 0 auto;
  overflow: hidden; padding: 0;
}
#paywall .header-chat { flex-shrink: 0; }
#paywall .paywall-content {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;   /* centra verticalmente cuando el contenido cabe */
  margin: 0 auto;            /* centra el bloque horizontalmente */
  padding: 24px;
  box-sizing: border-box;
}

.paywall-icon { font-size:56px; margin-bottom:16px; }
.paywall-content h2 { font-size:24px; color:var(--verde-oscuro); margin-bottom:8px; }
.paywall-content>p { color:var(--texto-suave); font-size:15px; margin-bottom:20px; }
.paywall-card { background:var(--blanco); border-radius:var(--radio-md); padding:24px; box-shadow:var(--sombra-md); border:1px solid var(--crema-oscura); position:relative; }
.paywall-badge { position:absolute; top:-12px; left:50%; transform:translateX(-50%); background:var(--dorado); color:var(--verde-oscuro); font-size:12px; font-weight:600; padding:4px 16px; border-radius:20px; }
.paywall-price { font-size:42px; font-weight:700; color:var(--verde-oscuro); margin:12px 0 16px; }
.paywall-price span { font-size:16px; font-weight:400; color:var(--texto-suave); }
.paywall-features { list-style:none; text-align:left; margin-bottom:20px; }
.paywall-features li { padding:8px 0; font-size:14px; border-bottom:1px solid var(--crema-oscura); }
.paywall-features li:last-child { border:none; }
.paywall-reset { font-size:12px; color:var(--texto-suave); margin-top:12px; }

/* ── App layout ── */
#app { display:flex; flex-direction:column; height:100vh; height: 100dvh; max-width:480px; margin:0 auto; background:var(--crema); position:relative; overflow:hidden; }
.vista { display:flex; flex-direction:column; flex:1; overflow:hidden; }
#vista-inicio { padding-bottom:0; }
#vista-historial { padding-bottom:0; }
#vista-chat.vista {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  max-width: 480px;
  margin: 0 auto;
  background: var(--crema);
}

#vista-chat .header-chat {
  flex-shrink: 0; /* ya lo tiene, solo confirma */
}

#vista-chat .chat {
  flex: 1 1 auto;
  min-height: 0;      /* ← la pieza que faltaba */
  overflow-y: auto;
}

#vista-chat .input-area {
  flex-shrink: 0; /* ya lo tiene, solo confirma */
}
.inicio-content { flex:1; overflow-y:auto; padding:16px 16px 80px; display:flex; flex-direction:column; gap:20px; }

/* ── Header inicio ── */
.header-inicio {
  background:linear-gradient(135deg,var(--verde-oscuro) 0%,var(--verde-medio) 100%);
  padding:14px 18px; display:flex; align-items:center; justify-content:space-between;
  box-shadow:0 2px 10px rgba(0,0,0,0.2); flex-shrink:0;
}
.header-inicio-brand { display:flex; align-items:center; gap:10px; }
.header-leaf { font-size:26px; }
.header-title { font-size:20px; font-weight:700; color:var(--blanco); line-height:1.2; }
.header-sub { font-size:11px; color:rgba(255,255,255,0.6); }
.header-actions { display:flex; align-items:center; gap:8px; }
.consultas-badge { background:rgba(201,168,76,0.25); border:1px solid var(--dorado); border-radius:20px; padding:4px 12px; font-size:12px; color:var(--dorado-claro); font-weight:500; white-space:nowrap; }
.btn-icon-header { width:34px; height:34px; border-radius:50%; background:rgba(255,255,255,0.15); border:1px solid rgba(255,255,255,0.25); color:var(--blanco); font-size:16px; display:flex; align-items:center; justify-content:center; transition:background .2s; }
.btn-icon-header:hover { background:rgba(255,255,255,0.25); }

/* ── Inicio content ── */
.inicio-content { flex:1 1 auto; overflow-y:auto; padding:16px 16px 24px; display:flex; flex-direction:column; gap:20px; min-height:0; }
.inicio-content::-webkit-scrollbar { width:4px; }
.inicio-content::-webkit-scrollbar-thumb { background:var(--crema-oscura); border-radius:4px; }

/* ── Card diagnóstico ── */
.card-diagnostico {
  background:linear-gradient(135deg,var(--verde-oscuro) 0%,var(--verde-medio) 100%);
  border-radius:var(--radio-lg); padding:20px; display:flex; align-items:center;
  justify-content:space-between; gap:16px;
  box-shadow:var(--sombra-md); overflow:hidden;
}
.card-diag-text { flex:1; min-width:0; display:flex; flex-direction:column; gap:6px; }
.card-diag-text h2 { color:var(--blanco); font-size:20px; font-weight:700; line-height:1.2; }
.card-diag-text p { color:rgba(255,255,255,0.75); font-size:12px; line-height:1.5; }
.card-diag-right { display:flex; flex-direction:column; align-items:center; gap:10px; flex-shrink:0; }
.card-diag-icon { font-size:58px; opacity:.9; line-height:1; }
.btn-analizar {
  background:var(--dorado); color:var(--verde-oscuro); border:none;
  border-radius:22px; padding:8px 14px; font-size:12px; font-weight:600;
  box-shadow:0 3px 10px rgba(0,0,0,0.2); transition:transform .2s; white-space:nowrap;
}
.btn-analizar:hover { transform:scale(1.04); }

/* ── Sección título ── */
.seccion-titulo { font-size:15px; font-weight:600; color:var(--verde-oscuro); }

/* ── Categorías ── */
.categorias-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.cat-card {
  background:var(--blanco); border:1px solid var(--crema-oscura); border-radius:var(--radio-md);
  padding:16px 12px; display:flex; flex-direction:column; align-items:center; gap:8px;
  box-shadow:var(--sombra-sm); transition:all .2s;
}
.cat-card:hover { background:var(--verde-oscuro); border-color:var(--verde-oscuro); }
.cat-card:hover .cat-label { color:var(--blanco); }
.cat-icon { font-size:28px; }
.cat-label { font-size:12px; font-weight:500; color:var(--texto); text-align:center; line-height:1.3; }

/* ── Sugerencias lista ── */
.sugerencias-lista { display:flex; flex-direction:column; gap:8px; }
.sug-item {
  background:var(--blanco); border:1px solid var(--crema-oscura); border-radius:var(--radio-sm);
  padding:12px 14px; display:flex; align-items:center; gap:12px;
  box-shadow:var(--sombra-sm); transition:all .2s; text-align:left;
}
.sug-item:hover { border-color:var(--verde-medio); background:var(--crema); }
.sug-icon { font-size:20px; flex-shrink:0; }
.sug-text { flex:1; font-size:13px; color:var(--texto); }
.sug-arrow { font-size:20px; color:var(--texto-suave); font-weight:300; }

/* ── Header chat ── */
.header-chat {
  background:linear-gradient(135deg,var(--verde-oscuro),var(--verde-medio));
  padding:12px 16px; display:flex; align-items:center; gap:10px;
  box-shadow:0 2px 10px rgba(0,0,0,0.2); flex-shrink:0;
}
.btn-back { width:34px; height:34px; border-radius:50%; background:rgba(255,255,255,0.15); border:none; color:var(--blanco); font-size:22px; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.header-chat-brand { flex:1; display:flex; align-items:center; gap:10px; }
.chat-avatar-header { width:36px; height:36px; border-radius:50%; background:rgba(255,255,255,0.2); display:flex; align-items:center; justify-content:center; font-size:18px; flex-shrink:0; }
.header-chat-title { font-size:15px; font-weight:600; color:var(--blanco); }
.header-chat-sub { font-size:11px; color:rgba(255,255,255,0.6); }
.header-chat .consultas-badge { font-size: 11px; padding: 3px 10px; white-space: nowrap; }

/* ── Chat ── */
.chat { flex:1; overflow-y:auto; padding:16px 14px; display:flex; flex-direction:column; gap:12px; scroll-behavior:smooth; }
.chat::-webkit-scrollbar { width:4px; }
.chat::-webkit-scrollbar-thumb { background:var(--crema-oscura); border-radius:4px; }

.msg { display:flex; align-items:flex-end; gap:8px; animation:fadeIn .25s ease; }
.msg.user { flex-direction:row-reverse; }
.msg-avatar { width:32px; height:32px; border-radius:50%; background:linear-gradient(135deg,var(--verde-oscuro),var(--verde-medio)); display:flex; align-items:center; justify-content:center; font-size:16px; flex-shrink:0; box-shadow:0 2px 6px rgba(45,74,30,0.3); }
.msg-bubble { max-width:78%; padding:11px 15px; font-size:14px; line-height:1.65; word-break:break-word; }
.msg-bubble h1,.msg-bubble h2,.msg-bubble h3 { font-size:14px; font-weight:600; margin:8px 0 4px; color:var(--verde-oscuro); }
.msg-bubble strong { font-weight:600; color:var(--verde-oscuro); }
.msg-bubble ul,.msg-bubble ol { padding-left:18px; margin:4px 0; }
.msg-bubble li { margin:2px 0; }
.msg-bubble p { margin:4px 0; }
.msg-bubble hr { border:none; border-top:1px solid var(--crema-oscura); margin:8px 0; }
.msg.bot .msg-bubble { background:var(--blanco); color:var(--texto); border-radius:18px 18px 18px 4px; box-shadow:var(--sombra-sm); border:1px solid var(--crema-oscura); }
.msg.user .msg-bubble { background:linear-gradient(135deg,var(--verde-oscuro),var(--verde-medio)); color:var(--blanco); border-radius:18px 18px 4px 18px; }
.msg-bubble img { max-width:100%; border-radius:10px; margin-bottom:8px; display:block; }
.cursor { display:inline-block; width:2px; height:14px; background:var(--verde-medio); margin-left:2px; animation:parpadeo .8s infinite; vertical-align:middle; }

.typing { display:flex; gap:5px; align-items:center; padding:14px 16px; }
.typing span { width:7px; height:7px; border-radius:50%; background:var(--verde-medio); animation:pulso 1.2s ease-in-out infinite; }
.typing span:nth-child(2) { animation-delay:.2s; }
.typing span:nth-child(3) { animation-delay:.4s; }

/* Bienvenida chat */
.chat-bienvenida { text-align:center; padding:24px 16px; }
.chat-bienvenida-avatar { width:72px; height:72px; border-radius:50%; background:linear-gradient(135deg,var(--verde-oscuro),var(--verde-medio)); display:flex; align-items:center; justify-content:center; font-size:36px; margin:0 auto 14px; box-shadow:var(--sombra-md); }
.chat-bienvenida h3 { font-size:17px; color:var(--verde-oscuro); margin-bottom:6px; }
.chat-bienvenida p { font-size:13px; color:var(--texto-suave); line-height:1.6; }

/* ── Input area ── */
.input-area { flex:0 0 auto; background:var(--blanco); border-top:1px solid var(--crema-oscura); padding:10px 14px 14px; box-shadow:0 -2px 12px rgba(0,0,0,0.06); }
.input-area { background:var(--blanco); border-top:1px solid var(--crema-oscura); padding:10px 14px 14px; flex-shrink:0; box-shadow:0 -2px 12px rgba(0,0,0,0.06); }
.img-preview { position:relative; display:inline-block; margin-bottom:8px; }
.img-preview img { width:64px; height:64px; object-fit:cover; border-radius:10px; border:2px solid var(--verde-claro); }
.btn-remove-img { position:absolute; top:-6px; right:-6px; width:20px; height:20px; border-radius:50%; background:var(--texto); color:var(--blanco); border:none; font-size:10px; cursor:pointer; display:flex; align-items:center; justify-content:center; }
.input-row { display:flex; align-items:flex-end; gap:8px; }
.btn-cam { width:42px; height:42px; border-radius:50%; border:1px solid var(--crema-oscura); background:var(--crema); font-size:20px; display:flex; align-items:center; justify-content:center; flex-shrink:0; transition:all .2s; }
.btn-cam:hover { background:var(--verde-oscuro); }
.msg-input { flex:1; border:1px solid var(--crema-oscura); border-radius:22px; padding:10px 16px; font-size:14px; font-family:inherit; background:var(--crema); color:var(--texto); resize:none; max-height:100px; outline:none; line-height:1.5; transition:border-color .2s; }
.msg-input:focus { border-color:var(--verde-medio); background:var(--blanco); }
.msg-input::placeholder { color:var(--texto-suave); }
.btn-send { width:42px; height:42px; border-radius:50%; border:none; flex-shrink:0; background:linear-gradient(135deg,var(--verde-oscuro),var(--verde-medio)); color:var(--blanco); display:flex; align-items:center; justify-content:center; box-shadow:0 2px 8px rgba(45,74,30,0.35); transition:all .2s; }
.btn-send:hover { transform:scale(1.08); }
.btn-send:disabled { opacity:.45; transform:none; cursor:default; }

/* ── Nav inferior ── */
.bottom-nav {
  position:absolute; bottom:0; left:0; right:0; height:64px;
  background:var(--blanco); border-top:1px solid var(--crema-oscura);
  display:flex; align-items:center; justify-content:space-around;
  padding:8px 0 12px; box-shadow:0 -4px 16px rgba(0,0,0,0.08);
  z-index:20;
}
#vista-inicio .inicio-content { padding-bottom:80px; }
#vista-historial .inicio-content { padding-bottom:80px; }
.nav-btn { display:flex; flex-direction:column; align-items:center; gap:3px; background:none; border:none; padding:4px 12px; color:var(--texto-suave); transition:color .2s; }
.nav-btn.active .nav-icon,.nav-btn.active .nav-label { color:var(--verde-oscuro); }
.nav-btn.active .nav-label { font-weight:600; }
.nav-icon { font-size:22px; }
.nav-label { font-size:10px; color:inherit; }
.nav-btn-center { margin-top:-20px; }
.nav-center-circle { width:52px; height:52px; border-radius:50%; background:linear-gradient(135deg,var(--verde-oscuro),var(--verde-medio)); display:flex; align-items:center; justify-content:center; font-size:24px; box-shadow:0 4px 14px rgba(45,74,30,0.4); }

/* ── Vista historial ── */
.historial-lista-vista { display:flex; flex-direction:column; gap:10px; }
.historial-item { background:var(--blanco); border-radius:var(--radio-md); border:1px solid var(--crema-oscura); overflow:hidden; box-shadow:var(--sombra-sm); cursor:pointer; transition:border-color .2s, transform .15s; }
.historial-item:hover { border-color:var(--verde-medio); transform:translateY(-1px); }
.historial-item-header { padding:14px 16px; display:flex; justify-content:space-between; align-items:flex-start; gap:8px; }
.historial-pregunta { font-size:14px; font-weight:500; color:var(--verde-oscuro); flex:1; line-height:1.4; }
.historial-fecha { font-size:11px; color:var(--texto-suave); white-space:nowrap; flex-shrink:0; text-align:right; }
.historial-vacio { text-align:center; padding:60px 20px; color:var(--texto-suave); font-size:14px; }
.historial-vacio div { font-size:48px; margin-bottom:14px; }
.historial-reset { width:100%; padding:10px; background:none; border:1px dashed var(--crema-oscura); border-radius:var(--radio-sm); font-size:12px; color:var(--texto-suave); cursor:pointer; margin-bottom:4px; }

/* ── Modal detalle consulta ── */
.modal-consulta { position:absolute; inset:0; z-index:60; display:flex; align-items:flex-end; }
.modal-consulta-panel {
  width:100%; max-height:88%; background:var(--crema);
  border-radius:24px 24px 0 0; display:flex; flex-direction:column;
  box-shadow:0 -4px 24px rgba(0,0,0,0.2);
  animation:slideUp .3s cubic-bezier(.4,0,.2,1);
}
.modal-consulta-panel::before { content:''; display:block; width:40px; height:4px; background:var(--crema-oscura); border-radius:4px; margin:10px auto 0; }
.modal-consulta-header { background:linear-gradient(135deg,var(--verde-oscuro),var(--verde-medio)); padding:14px 16px; display:flex; align-items:flex-start; justify-content:space-between; gap:10px; margin:10px 12px 0; border-radius:var(--radio-md); }
.modal-consulta-header h3 { color:var(--blanco); font-size:14px; font-weight:500; line-height:1.4; flex:1; }
.modal-respuesta { flex:1; overflow-y:auto; padding:16px; font-size:14px; color:var(--texto); line-height:1.7; padding-bottom:24px; }
.modal-respuesta strong { color:var(--verde-oscuro); font-weight:600; }
.modal-respuesta ul,.modal-respuesta ol { padding-left:20px; margin:6px 0; }
.modal-respuesta li { margin:4px 0; }
.modal-respuesta h1,.modal-respuesta h2,.modal-respuesta h3 { font-size:14px; font-weight:600; color:var(--verde-oscuro); margin:10px 0 4px; }
.modal-respuesta hr { border:none; border-top:1px solid var(--crema-oscura); margin:10px 0; }
.modal-respuesta::-webkit-scrollbar { width:4px; }
.modal-respuesta::-webkit-scrollbar-thumb { background:var(--crema-oscura); border-radius:4px; }

@keyframes slideUp { from{transform:translateY(100%)} to{transform:translateY(0)} }

/* ── Botón primario ── */
.btn-primary { width:100%; padding:14px; background:linear-gradient(135deg,var(--verde-oscuro),var(--verde-medio)); color:var(--blanco); border:none; border-radius:var(--radio-sm); font-size:16px; font-weight:600; cursor:pointer; box-shadow:0 4px 12px rgba(45,74,30,0.3); transition:all .2s; }
.btn-primary:hover { transform:translateY(-1px); }

/* ── Animaciones ── */
@keyframes pulso  { 0%,80%,100%{transform:scale(.6);opacity:.4} 40%{transform:scale(1);opacity:1} }
@keyframes parpadeo { 0%,100%{opacity:1} 50%{opacity:0} }
@keyframes fadeIn { from{opacity:0;transform:translateY(6px)} to{opacity:1;transform:translateY(0)} }

#main-content {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
  overflow: hidden;
}

.vista {
  min-height: 0; /* ya tiene flex:1, solo le falta esto */
}

.chat {
  min-height: 0; /* ya tiene flex:1, solo le falta esto */
}