/* ============================================================
   Netco Mentor — Design Tokens
   Dirección: "Cuaderno de bitácora de ingeniería"
   - Fondo papel-frío, tinta azul "blueprint", acento progreso verde señal.
   - Mono para datos/pasos, Sans para lectura.
   ============================================================ */

:root{
  /* Paleta */
  --paper:        #F6F4EF;   /* fondo principal, papel frío */
  --paper-raised: #FFFFFF;   /* tarjetas */
  --ink-900:      #16202B;   /* texto principal */
  --ink-600:      #4A5868;   /* texto secundario */
  --ink-300:      #B9C2CB;   /* bordes / líneas de plano */
  --blueprint:    #1B3A6B;   /* azul ingeniería — acento primario */
  --blueprint-deep:#10233F;
  --signal-green: #1F8A5F;   /* progreso / éxito */
  --signal-amber: #C9881A;   /* advertencia / pendiente */
  --signal-red:   #B43B3B;
  --grid-line:    rgba(27,58,107,0.07);

  --font-display: 'Inter', -apple-system, sans-serif;
  --font-body:    'Inter', -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-card: 0 1px 2px rgba(16,35,63,0.06), 0 8px 24px rgba(16,35,63,0.05);
  --shadow-pop:  0 4px 16px rgba(16,35,63,0.12);
}

*{ box-sizing:border-box; margin:0; padding:0; }

html,body{
  height:100%;
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--ink-900);
  -webkit-font-smoothing:antialiased;
}

/* Fondo de plano técnico sutil: cuadrícula fina */
body{
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 28px 28px;
}

button, textarea, input{ font-family:inherit; }
button{ cursor:pointer; border:none; background:none; }
:focus-visible{ outline:2px solid var(--blueprint); outline-offset:2px; }

.hidden{ display:none !important; }

/* ============================================================
   LAYOUT
   ============================================================ */

.app{
  display:flex;
  height:100vh;
  overflow:hidden;
}

/* ============================================================
   SIDEBAR
   ============================================================ */

.sidebar{
  width:280px;
  flex-shrink:0;
  background:var(--paper-raised);
  border-right:1px solid var(--ink-300);
  display:flex;
  flex-direction:column;
  transition:width .2s ease;
}

.sidebar-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 18px 16px;
}

.brand{ display:flex; align-items:center; gap:10px; }

.brand-mark{
  width:32px; height:32px;
  background:var(--blueprint);
  color:#fff;
  border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono);
  font-weight:600;
  font-size:13px;
  letter-spacing:0.5px;
}

.brand-name{
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-900);
  letter-spacing:-0.2px;
}
.brand-name strong{ color:var(--blueprint); font-weight:700; }

.icon-btn{
  width:30px; height:30px;
  display:flex; align-items:center; justify-content:center;
  color:var(--ink-600);
  border-radius:7px;
  transition:background .15s;
}
.icon-btn:hover{ background:var(--paper); color:var(--ink-900); }

.new-project-btn{
  margin:4px 18px 18px;
  height:42px;
  background:var(--blueprint);
  color:#fff;
  border-radius:var(--radius-md);
  display:flex; align-items:center; justify-content:center;
  gap:8px;
  font-weight:600;
  font-size:13.5px;
  letter-spacing:0.1px;
  box-shadow:var(--shadow-card);
  transition:background .15s, transform .1s;
}
.new-project-btn:hover{ background:var(--blueprint-deep); }
.new-project-btn:active{ transform:scale(0.98); }

.sidebar-section{
  flex:1;
  overflow-y:auto;
  padding:0 12px;
}

.sidebar-section-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:6px 8px 10px;
  font-size:12px;
  font-weight:600;
  color:var(--ink-600);
  text-transform:uppercase;
  letter-spacing:0.6px;
}

.count-badge{
  background:var(--paper);
  border:1px solid var(--ink-300);
  color:var(--ink-600);
  font-size:11px;
  font-family:var(--font-mono);
  padding:1px 7px;
  border-radius:20px;
}

.empty-state-mini{
  font-size:12.5px;
  color:var(--ink-600);
  padding:14px 8px;
  line-height:1.6;
}

.project-list{ display:flex; flex-direction:column; gap:3px; }

.project-item{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:10px 12px;
  border-radius:var(--radius-sm);
  cursor:pointer;
  transition:background .15s;
  border:1px solid transparent;
}
.project-item:hover{ background:var(--paper); }
.project-item.active{
  background:#EAF0F8;
  border-color:#CBD9EC;
}

.project-item-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
}

.project-item-name{
  font-size:13px;
  font-weight:600;
  color:var(--ink-900);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.project-item-cat{
  font-size:10px;
  font-family:var(--font-mono);
  color:var(--blueprint);
  background:#EAF0F8;
  padding:2px 6px;
  border-radius:4px;
  flex-shrink:0;
}
.project-item.active .project-item-cat{ background:#fff; }

.project-item-progress-row{
  display:flex; align-items:center; gap:8px;
}

.mini-progress-track{
  flex:1; height:4px;
  background:var(--ink-300);
  border-radius:4px;
  overflow:hidden;
}
.mini-progress-fill{
  height:100%;
  background:var(--signal-green);
  border-radius:4px;
}

.project-item-pct{
  font-size:10.5px;
  font-family:var(--font-mono);
  color:var(--ink-600);
}

.sidebar-footer{
  padding:14px 18px 18px;
  border-top:1px solid var(--ink-300);
  display:flex;
  flex-direction:column;
  gap:10px;
}

.engine-status{
  display:flex; align-items:center; gap:7px;
  font-size:12px; color:var(--ink-600);
}
.status-dot{
  width:7px; height:7px; border-radius:50%;
  background:var(--ink-300);
  flex-shrink:0;
}
.status-dot.online{ background:var(--signal-green); box-shadow:0 0 0 3px rgba(31,138,95,0.15); }
.status-dot.offline{ background:var(--signal-red); box-shadow:0 0 0 3px rgba(180,59,59,0.15); }

.trial-badge{
  font-size:11.5px;
  color:var(--blueprint);
  background:#EAF0F8;
  border:1px solid #CBD9EC;
  padding:7px 10px;
  border-radius:var(--radius-sm);
  font-weight:500;
}
.trial-badge span{ font-family:var(--font-mono); font-weight:600; }

/* ============================================================
   MAIN
   ============================================================ */

.main{
  flex:1;
  overflow:hidden;
  position:relative;
}

/* ---------- Welcome screen ---------- */

.welcome-screen{
  height:100%;
  display:flex;
  align-items:flex-start;
  justify-content:center;
  padding:56px 40px 60px;
  overflow-y:auto;
}

.welcome-inner{
  max-width:820px;
  width:100%;
  text-align:center;
}

/* ---------- PUNTO 7: Tarjeta de bienvenida ---------- */

.intro-card{
  text-align:center;
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  border-radius:var(--radius-lg);
  padding:26px 30px;
  margin-bottom:32px;
  box-shadow:var(--shadow-card);
}

.intro-wave{
  font-size:26px;
  display:block;
  margin-bottom:10px;
}

.intro-title{
  font-size:18px;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:10px;
  letter-spacing:-0.3px;
}

.intro-body{
  font-size:14px;
  color:var(--ink-600);
  line-height:1.65;
  max-width:420px;
  margin:0 auto;
}

/* ---------- FASE 1: Hero ---------- */

.hero-block{
  margin-bottom:40px;
}

.welcome-eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:1.5px;
  text-transform:uppercase;
  color:var(--blueprint);
  background:#EAF0F8;
  padding:5px 12px;
  border-radius:20px;
  margin-bottom:18px;
}

.hero-title{
  font-size:36px;
  font-weight:800;
  letter-spacing:-1px;
  line-height:1.18;
  color:var(--ink-900);
  margin-bottom:14px;
}

/* ---------- PUNTO 3: Beneficio claro ---------- */

.hero-benefit{
  font-size:16.5px;
  font-weight:500;
  color:var(--blueprint);
  margin-bottom:26px;
}

.hero-checklist{
  list-style:none;
  display:inline-flex;
  flex-direction:column;
  align-items:flex-start;
  gap:9px;
  margin:0 auto 28px;
  text-align:left;
}
.hero-checklist li{
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-600);
  display:flex;
  align-items:center;
  gap:9px;
}
.check-mark{
  width:18px; height:18px;
  border-radius:50%;
  background:var(--signal-green);
  color:#fff;
  font-size:11px;
  font-weight:700;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}

.hero-cta.primary-btn{
  width:auto;
  padding:0 32px;
  display:inline-flex;
}

/* ---------- PUNTO 2: Prueba social + accesos rápidos ---------- */

.hero-social-proof{
  margin-top:32px;
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:600;
  color:var(--ink-600);
  letter-spacing:0.3px;
}

.quick-links{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:10px;
  margin-top:16px;
}

.quick-link{
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  color:var(--ink-900);
  font-size:13px;
  font-weight:600;
  padding:9px 16px;
  border-radius:var(--radius-md);
  transition:all .15s;
}
.quick-link:hover{
  border-color:var(--blueprint);
  background:#EAF0F8;
  color:var(--blueprint);
  transform:translateY(-1px);
}

/* ---------- FASE 2: Proyecto activo ---------- */

.active-project-card{
  text-align:left;
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  border-radius:var(--radius-lg);
  padding:24px 26px;
  margin-bottom:36px;
  box-shadow:var(--shadow-card);
  position:relative;
  overflow:hidden;
}
.active-project-card::before{
  content:"";
  position:absolute;
  left:0; top:0; bottom:0;
  width:4px;
  background:linear-gradient(180deg, var(--signal-green), var(--blueprint));
}

.active-project-eyebrow{
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:600;
  letter-spacing:0.6px;
  text-transform:uppercase;
  color:var(--signal-green);
  margin-bottom:14px;
}

.active-project-main{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  margin-bottom:16px;
}

.active-project-main h3{
  font-size:18px;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:4px;
}

.active-project-pct{
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--signal-green);
  font-weight:600;
}

.active-project-progress{ width:140px; flex-shrink:0; }
.active-project-progress .progress-bar-wrap{ width:100%; }

.active-project-next{
  display:flex;
  align-items:baseline;
  gap:6px;
  font-size:13.5px;
  color:var(--ink-900);
  background:var(--paper);
  border:1px solid var(--ink-300);
  border-radius:var(--radius-sm);
  padding:10px 13px;
  margin-bottom:18px;
}
.next-label{
  font-weight:600;
  color:var(--ink-600);
  flex-shrink:0;
}

.active-project-card .primary-btn{
  width:auto;
  padding:0 24px;
  height:40px;
}

/* ---------- FASE 3: Estadísticas ---------- */

.stats-block{ margin-bottom:40px; text-align:left; }

.stats-block-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:0.3px;
  color:var(--ink-900);
  margin-bottom:14px;
}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:12px;
}

.stat-card{
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  border-radius:var(--radius-md);
  padding:20px 14px 18px;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:6px;
  transition:transform .15s, box-shadow .15s;
}
.stat-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-card);
}

.stat-card-icon{
  font-size:22px;
  margin-bottom:2px;
}

.stat-value{
  font-family:var(--font-mono);
  font-size:26px;
  font-weight:700;
  color:var(--blueprint);
}

.stat-label{
  font-size:11.5px;
  color:var(--ink-600);
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:0.4px;
}

@media (max-width:680px){
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
}

.section-lead{
  font-size:20px;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:22px;
  text-align:left;
}

/* ---------- PUNTO 6: Lo que puedes construir ---------- */

.examples-block{ margin-top:40px; margin-bottom:8px; text-align:left; }

.examples-list{
  list-style:none;
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:11px 24px;
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  border-radius:var(--radius-lg);
  padding:22px 26px;
}
.examples-list li{
  font-size:14px;
  font-weight:500;
  color:var(--ink-900);
  display:flex;
  align-items:center;
  gap:9px;
}

@media (max-width:680px){
  .examples-list{ grid-template-columns:1fr; }
}

/* ---------- FASE 4: Populares ---------- */

.popular-block{ margin-top:40px; text-align:left; }

.popular-grid{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.popular-pill{
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  color:var(--ink-900);
  font-size:13px;
  font-weight:600;
  padding:10px 16px;
  border-radius:30px;
  transition:all .15s;
}
.popular-pill:hover{
  border-color:var(--blueprint);
  background:#EAF0F8;
  color:var(--blueprint);
  transform:translateY(-1px);
}

.category-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:14px;
}

.category-card{
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  border-radius:var(--radius-lg);
  padding:32px 16px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  transition:transform .15s, box-shadow .15s, border-color .15s;
}
.category-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-pop);
  border-color:var(--blueprint);
}
.cat-icon{ font-size:34px; }
.cat-label{ font-size:16px; font-weight:600; color:var(--ink-900); }

@media (max-width:680px){
  .category-grid{ grid-template-columns:repeat(2,1fr); }
}

/* ---------- Wizard screen ---------- */

.wizard-screen{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:40px;
  overflow-y:auto;
}

.wizard-card{
  width:100%;
  max-width:560px;
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  border-radius:var(--radius-lg);
  padding:36px;
  box-shadow:var(--shadow-card);
}

.back-link{
  font-size:13px;
  color:var(--ink-600);
  font-weight:500;
  margin-bottom:18px;
}
.back-link:hover{ color:var(--blueprint); }

.wizard-eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:1px;
  text-transform:uppercase;
  color:var(--blueprint);
  margin-bottom:8px;
}

.wizard-card h2{
  font-size:22px;
  font-weight:700;
  letter-spacing:-0.4px;
  margin-bottom:28px;
  color:var(--ink-900);
}

.form-group{ margin-bottom:22px; }

.form-group label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--ink-900);
  margin-bottom:8px;
}

.form-group input,
.form-group textarea{
  width:100%;
  border:1px solid var(--ink-300);
  border-radius:var(--radius-sm);
  padding:11px 13px;
  font-size:14px;
  color:var(--ink-900);
  background:var(--paper);
  resize:vertical;
  transition:border-color .15s;
}
.form-group input:focus,
.form-group textarea:focus{
  border-color:var(--blueprint);
  background:#fff;
}

.level-picker{ display:flex; gap:8px; }

.level-btn{
  flex:1;
  padding:11px 8px;
  border:1px solid var(--ink-300);
  border-radius:var(--radius-sm);
  font-size:13px;
  font-weight:600;
  color:var(--ink-600);
  background:var(--paper);
  transition:all .15s;
}
.level-btn:hover{ border-color:var(--blueprint); }
.level-btn.selected{
  background:var(--blueprint);
  border-color:var(--blueprint);
  color:#fff;
}

.primary-btn{
  width:100%;
  height:46px;
  background:var(--blueprint);
  color:#fff;
  border-radius:var(--radius-md);
  font-weight:700;
  font-size:14px;
  letter-spacing:0.1px;
  transition:background .15s, transform .1s;
}
.primary-btn:hover{ background:var(--blueprint-deep); }
.primary-btn:active{ transform:scale(0.98); }
.primary-btn:disabled{ opacity:0.5; cursor:not-allowed; }

/* ---------- Generating screen ---------- */

.generating-screen{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
}

.generating-inner{ text-align:center; }

.spinner{
  width:44px; height:44px;
  border:3px solid var(--ink-300);
  border-top-color:var(--blueprint);
  border-radius:50%;
  margin:0 auto 24px;
  animation:spin .8s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }

.generating-inner h3{
  font-size:18px; font-weight:700; margin-bottom:8px; color:var(--ink-900);
}
.generating-inner p{ font-size:14px; color:var(--ink-600); }

/* ---------- Project view ---------- */

.project-view{
  height:100%;
  display:flex;
  flex-direction:column;
}

.project-header{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:20px 28px;
  padding:22px 32px;
  border-bottom:1px solid var(--ink-300);
  background:var(--paper-raised);
}

.project-category-tag{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:0.5px;
  text-transform:uppercase;
  color:var(--blueprint);
  background:#EAF0F8;
  padding:3px 9px;
  border-radius:5px;
  margin-bottom:8px;
}

.project-header-info{ flex:1 1 240px; min-width:200px; }

.project-header-info h2{
  font-size:21px;
  font-weight:700;
  letter-spacing:-0.4px;
  color:var(--ink-900);
  margin-bottom:4px;
}
.project-header-info p{
  font-size:13px;
  color:var(--ink-600);
  max-width:480px;
}

/* ---------- FASE 5: Meta info del proyecto ---------- */

.project-header-meta{
  display:flex;
  gap:24px;
  flex-wrap:wrap;
  padding-top:4px;
}

.meta-item{
  display:flex;
  flex-direction:column;
  gap:4px;
  min-width:90px;
}

.meta-label{
  font-size:10.5px;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:0.5px;
  color:var(--ink-600);
}

.meta-value{
  font-size:13px;
  font-weight:600;
  color:var(--ink-900);
  display:flex;
  align-items:center;
  gap:6px;
}
.meta-value .status-dot{ width:7px; height:7px; }

.project-header-progress{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:6px;
  min-width:160px;
}

.progress-bar-wrap{
  width:160px;
  height:8px;
  background:var(--ink-300);
  border-radius:6px;
  overflow:hidden;
}
.progress-bar-fill{
  height:100%;
  background:linear-gradient(90deg, var(--signal-green), #2EB37C);
  border-radius:6px;
  transition:width .4s ease;
}
.progress-percent{
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:600;
  color:var(--signal-green);
}

.project-body{
  flex:1;
  display:flex;
  overflow:hidden;
}

/* Chat column */

.chat-column{
  flex:1;
  display:flex;
  flex-direction:column;
  min-width:0;
}

/* ---------- FASE 6: Próximo paso gigante ---------- */

.next-step-banner{
  margin:20px 32px 0;
  background:linear-gradient(135deg, var(--blueprint), var(--blueprint-deep));
  border-radius:var(--radius-lg);
  padding:22px 26px;
  color:#fff;
  box-shadow:var(--shadow-pop);
  position:relative;
  overflow:hidden;
  flex-shrink:0;
}
.next-step-banner::after{
  content:"";
  position:absolute;
  right:-40px; top:-40px;
  width:140px; height:140px;
  border-radius:50%;
  background:rgba(255,255,255,0.06);
}

.next-step-banner-eyebrow{
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:1px;
  color:#9FC1F0;
  margin-bottom:10px;
}

.next-step-banner-title{
  font-size:20px;
  font-weight:700;
  letter-spacing:-0.3px;
  margin-bottom:12px;
  position:relative;
}

.next-step-banner-goal{
  font-size:13.5px;
  color:#D9E5F5;
  line-height:1.6;
  margin-bottom:18px;
  display:flex;
  gap:6px;
  flex-wrap:wrap;
}
.next-step-banner-goal .next-label{
  color:#9FC1F0;
  font-weight:600;
  flex-shrink:0;
}

.next-step-complete-btn{
  width:auto;
  padding:0 22px;
  height:38px;
  background:#fff;
  color:var(--blueprint-deep);
  font-size:13px;
}
.next-step-complete-btn:hover{ background:#EAF0F8; }

.next-step-banner.done{
  background:linear-gradient(135deg, var(--signal-green), #176B49);
}
.next-step-banner.done .next-step-banner-eyebrow{ color:#A7E6CB; }
.next-step-banner.done .next-step-banner-goal .next-label{ color:#A7E6CB; }

.chat-messages{
  flex:1;
  overflow-y:auto;
  padding:20px 32px 28px;
  display:flex;
  flex-direction:column;
  gap:18px;
}

.msg{
  max-width:680px;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.msg.user{ align-self:flex-end; align-items:flex-end; }
.msg.assistant{ align-self:flex-start; align-items:flex-start; }

.msg-label{
  font-size:11px;
  font-family:var(--font-mono);
  color:var(--ink-600);
  text-transform:uppercase;
  letter-spacing:0.5px;
  padding:0 4px;
}

.msg-bubble{
  padding:13px 16px;
  border-radius:var(--radius-md);
  font-size:14.5px;
  line-height:1.65;
  white-space:pre-wrap;
}
.msg.user .msg-bubble{
  background:var(--blueprint);
  color:#fff;
  border-bottom-right-radius:4px;
}
.msg.assistant .msg-bubble{
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  color:var(--ink-900);
  border-bottom-left-radius:4px;
}

.typing-indicator{
  display:flex; gap:4px; padding:13px 16px;
  background:var(--paper-raised);
  border:1px solid var(--ink-300);
  border-radius:var(--radius-md);
  border-bottom-left-radius:4px;
  width:fit-content;
}
.typing-indicator span{
  width:6px; height:6px; border-radius:50%;
  background:var(--ink-300);
  animation:bounce 1.2s infinite;
}
.typing-indicator span:nth-child(2){ animation-delay:.15s; }
.typing-indicator span:nth-child(3){ animation-delay:.3s; }
@keyframes bounce{
  0%,60%,100%{ transform:translateY(0); opacity:0.4; }
  30%{ transform:translateY(-4px); opacity:1; }
}

.chat-input-bar{
  display:flex;
  align-items:flex-end;
  gap:10px;
  padding:16px 32px 24px;
  border-top:1px solid var(--ink-300);
  background:var(--paper-raised);
}

.chat-input-bar textarea{
  flex:1;
  border:1px solid var(--ink-300);
  border-radius:var(--radius-md);
  padding:12px 14px;
  font-size:14px;
  max-height:160px;
  background:var(--paper);
  transition:border-color .15s;
}
.chat-input-bar textarea:focus{ border-color:var(--blueprint); background:#fff; }

.send-btn{
  width:42px; height:42px;
  flex-shrink:0;
  background:var(--blueprint);
  color:#fff;
  border-radius:var(--radius-md);
  display:flex; align-items:center; justify-content:center;
  transition:background .15s, transform .1s;
}
.send-btn:hover{ background:var(--blueprint-deep); }
.send-btn:active{ transform:scale(0.95); }
.send-btn:disabled{ opacity:0.4; cursor:not-allowed; }

/* Phases panel */

.phases-panel{
  width:300px;
  flex-shrink:0;
  border-left:1px solid var(--ink-300);
  background:var(--paper-raised);
  display:flex;
  flex-direction:column;
  overflow:hidden;
}

/* ---------- FASE 7: Pestañas del panel ---------- */

.panel-tabs{
  display:flex;
  border-bottom:1px solid var(--ink-300);
  flex-shrink:0;
}

.panel-tab{
  flex:1;
  padding:13px 4px;
  font-size:11.5px;
  font-weight:600;
  color:var(--ink-600);
  border-bottom:2px solid transparent;
  transition:all .15s;
  white-space:nowrap;
}
.panel-tab:hover{ color:var(--ink-900); background:var(--paper); }
.panel-tab.active{
  color:var(--blueprint);
  border-bottom-color:var(--blueprint);
}

.panel-tab-content{
  flex:1;
  display:flex;
  flex-direction:column;
  overflow:hidden;
}

.empty-tab-state{
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:30px 24px;
  gap:8px;
}
.empty-tab-icon{ font-size:30px; margin-bottom:4px; opacity:0.6; }
.empty-tab-state p{
  font-size:13px;
  font-weight:600;
  color:var(--ink-900);
}
.empty-tab-hint{
  font-size:11.5px;
  color:var(--ink-600);
  line-height:1.6;
  max-width:220px;
}

.achievements-list{
  flex:1;
  overflow-y:auto;
  padding:16px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.achievement-card{
  display:flex;
  align-items:center;
  gap:10px;
  padding:11px 12px;
  background:var(--paper);
  border:1px solid var(--ink-300);
  border-radius:var(--radius-sm);
}
.achievement-icon{ font-size:20px; flex-shrink:0; }
.achievement-info{ display:flex; flex-direction:column; gap:2px; }
.achievement-title{ font-size:12.5px; font-weight:700; color:var(--ink-900); }
.achievement-desc{ font-size:11px; color:var(--ink-600); }

.phases-panel-header{
  padding:18px 20px 14px;
  border-bottom:1px solid var(--ink-300);
}
.phases-panel-header h3{
  font-size:13px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.5px;
  color:var(--ink-900);
  margin-bottom:8px;
}

.next-step-pill{
  display:inline-block;
  font-size:11.5px;
  font-family:var(--font-mono);
  color:var(--signal-amber);
  background:#FBF1DF;
  border:1px solid #EAD6AC;
  padding:4px 9px;
  border-radius:6px;
  max-width:100%;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.phases-list{
  flex:1;
  overflow-y:auto;
  padding:14px 16px;
}

.phase-block{ margin-bottom:18px; }

.phase-block-header{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:8px;
}

.phase-index{
  font-family:var(--font-mono);
  font-size:10.5px;
  color:#fff;
  background:var(--blueprint);
  width:18px; height:18px;
  border-radius:5px;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}
.phase-block.done .phase-index{ background:var(--signal-green); }

.phase-title{
  font-size:12.5px;
  font-weight:700;
  color:var(--ink-900);
}

.task-row{
  display:flex;
  align-items:flex-start;
  gap:8px;
  padding:7px 0 7px 26px;
  font-size:12.5px;
  color:var(--ink-600);
  line-height:1.5;
  cursor:pointer;
}

.task-check{
  width:15px; height:15px;
  border:1.5px solid var(--ink-300);
  border-radius:4px;
  flex-shrink:0;
  margin-top:1px;
  display:flex; align-items:center; justify-content:center;
  transition:all .15s;
}
.task-row.completado .task-check{
  background:var(--signal-green);
  border-color:var(--signal-green);
}
.task-row.completado{
  color:var(--ink-300);
  text-decoration:line-through;
}

.task-row.current{
  color:var(--ink-900);
  font-weight:600;
}
.task-row.current .task-check{ border-color:var(--signal-amber); }

/* Scrollbars */
::-webkit-scrollbar{ width:8px; height:8px; }
::-webkit-scrollbar-thumb{ background:var(--ink-300); border-radius:8px; }
::-webkit-scrollbar-track{ background:transparent; }

/* Responsive */
@media (max-width:960px){
  .phases-panel{ display:none; }
  .sidebar{ width:230px; }
}