/* SAM AI — SmartThinkers conversational assistant */
:root{
  --sam-bg: rgba(3, 9, 25, 0.96);
  --sam-panel: rgba(11, 26, 60, 0.78);
  --sam-border: rgba(56, 189, 248, 0.2);
  --sam-cyan: #38bdf8;
  --sam-violet: #818cf8;
  --sam-green: #22c55e;
  --sam-amber: #f59e0b;
  --sam-text: #f8fafc;
  --sam-muted: #94a3b8;
  --sam-radius: 22px;
  --sam-shadow: 0 28px 80px rgba(0, 0, 0, 0.55);
}

.sam-fab{
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sam-cyan), var(--sam-violet));
  color: #fff;
  border: 1px solid rgba(255,255,255,0.22);
  box-shadow: var(--sam-shadow);
  cursor: pointer;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.6px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.sam-fab:hover{transform:scale(1.07);box-shadow:0 30px 90px rgba(0,0,0,0.6);}
.sam-fab:active{transform:scale(0.96);}

.sam-window{
  position: fixed;
  bottom: 98px;
  right: 24px;
  width: 440px;
  max-width: calc(100vw - 32px);
  height: 640px;
  max-height: calc(100vh - 120px);
  border-radius: var(--sam-radius);
  background: var(--sam-bg);
  border: 1px solid var(--sam-border);
  box-shadow: var(--sam-shadow);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  z-index: 998;
  display: none;
  flex-direction: column;
  overflow: hidden;
  color: var(--sam-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.sam-window.open{display:flex;animation:sam-slide 0.22s ease forwards;}

@keyframes sam-slide{
  from{opacity:0;transform:translateY(20px) scale(0.96);}
  to{opacity:1;transform:translateY(0) scale(1);}
}

.sam-header{
  padding: 18px 22px;
  background: linear-gradient(90deg, rgba(56,189,248,0.2), rgba(129,140,248,0.1));
  border-bottom: 1px solid var(--sam-border);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.sam-title{display:flex;align-items:center;gap:13px;}
.sam-avatar{
  width:40px;
  height:40px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--sam-cyan),var(--sam-violet));
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:800;
  color:#fff;
  box-shadow:0 0 16px rgba(56,189,248,0.35);
}
.sam-name-wrap{line-height:1.28;}
.sam-name{font-weight:700;font-size:16px;color:var(--sam-text);}
.sam-status{font-size:11px;color:var(--sam-muted);display:flex;align-items:center;gap:6px;}
.sam-dot{width:8px;height:8px;border-radius:50%;background:var(--sam-green);animation:sam-pulse 1.6s infinite;}
@keyframes sam-pulse{0%,100%{opacity:1}50%{opacity:0.4}}
.sam-header-actions{display:flex;gap:10px;align-items:center;}
.sam-reset, .sam-close{
  width:32px;
  height:32px;
  border-radius:50%;
  border:1px solid var(--sam-border);
  background:rgba(255,255,255,0.06);
  color:var(--sam-text);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  transition:background 0.15s;
}
.sam-reset:hover, .sam-close:hover{background:rgba(255,255,255,0.16);}

.sam-messages{
  flex:1;
  padding:20px;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:12px;
  scrollbar-width:thin;
}
.sam-messages::-webkit-scrollbar{width:6px;}
.sam-messages::-webkit-scrollbar-thumb{background:rgba(148,163,184,0.25);border-radius:3px;}

.sam-msg{
  max-width:92%;
  padding:13px 16px;
  border-radius:17px;
  font-size:13.5px;
  line-height:1.6;
  animation:sam-fade 0.28s ease;
  white-space:pre-line;
}
@keyframes sam-fade{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
.sam-msg.sam-bot{align-self:flex-start;background:var(--sam-panel);border:1px solid var(--sam-border);border-bottom-left-radius:4px;}
.sam-msg.sam-user{align-self:flex-end;background:linear-gradient(135deg,var(--sam-cyan),var(--sam-violet));border-bottom-right-radius:4px;}

.sam-typing{display:flex;align-items:center;gap:5px;padding:16px 18px;}
.sam-typing span{width:7px;height:7px;border-radius:50%;background:var(--sam-cyan);animation:sam-bounce 1.2s infinite;}
.sam-typing span:nth-child(2){animation-delay:0.15s;}
.sam-typing span:nth-child(3){animation-delay:0.3s;}
@keyframes sam-bounce{0%,80%,100%{transform:translateY(0);}40%{transform:translateY(-6px);}}

.sam-welcome h3{margin:0 0 8px;font-size:18px;font-weight:700;background:linear-gradient(135deg,#fff,var(--sam-cyan));-webkit-background-clip:text;background-clip:text;color:transparent;}
.sam-welcome p{margin:0 0 16px;color:var(--sam-muted);font-size:13.5px;line-height:1.6;}
.sam-welcome h4{margin:22px 0 12px;font-size:12px;text-transform:uppercase;letter-spacing:0.9px;color:var(--sam-muted);font-weight:700;}

.sam-quick-actions{display:flex;flex-wrap:wrap;gap:9px;margin:4px 0 16px;}
.sam-chip{
  padding:9px 15px;
  border-radius:24px;
  border:1px solid var(--sam-border);
  background:rgba(56,189,248,0.08);
  color:var(--sam-cyan);
  font-size:12px;
  font-weight:600;
  cursor:pointer;
  transition:all 0.15s;
}
.sam-chip:hover{background:rgba(56,189,248,0.22);transform:translateY(-1px);}

.sam-services{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.sam-service-card{
  padding:14px;
  border-radius:15px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--sam-border);
  display:flex;
  flex-direction:column;
  transition:transform 0.15s, background 0.15s;
}
.sam-service-card:hover{transform:translateY(-3px);background:rgba(255,255,255,0.07);}
.sam-service-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;}
.sam-badge{font-size:9px;font-weight:700;padding:3px 7px;border-radius:20px;text-transform:uppercase;letter-spacing:0.5px;}
.sam-badge.active{background:rgba(34,197,94,0.16);color:var(--sam-green);border:1px solid rgba(34,197,94,0.3);}
.sam-badge.coming-soon{background:rgba(245,158,11,0.16);color:var(--sam-amber);border:1px solid rgba(245,158,11,0.3);}
.sam-service-card h5{margin:0 0 6px;font-size:13px;font-weight:700;color:var(--sam-text);}
.sam-service-card p{margin:0 0 12px;font-size:11.5px;color:var(--sam-muted);line-height:1.45;flex:1;}
.sam-service-actions{display:flex;gap:8px;}
.sam-service-actions button{
  flex:1;
  padding:9px 0;
  border-radius:9px;
  border:none;
  background:rgba(56,189,248,0.12);
  color:var(--sam-cyan);
  font-size:11px;
  font-weight:700;
  cursor:pointer;
  transition:background 0.15s;
}
.sam-service-actions button:last-child{background:linear-gradient(135deg,var(--sam-cyan),var(--sam-violet));color:#fff;}
.sam-service-actions button:hover{filter:brightness(1.15);}

.sam-stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.sam-stat{
  padding:13px;
  border-radius:13px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--sam-border);
  text-align:center;
}
.sam-stat strong{display:block;font-size:21px;font-weight:800;background:linear-gradient(135deg,#fff,var(--sam-cyan));-webkit-background-clip:text;background-clip:text;color:transparent;}
.sam-stat span{display:block;font-size:10px;color:var(--sam-muted);text-transform:uppercase;letter-spacing:0.5px;margin-top:4px;}

.sam-input-wrap{
  padding:14px 18px 18px;
  border-top:1px solid var(--sam-border);
  display:flex;
  gap:10px;
  align-items:center;
}
.sam-input{
  flex:1;
  padding:14px 18px;
  border-radius:26px;
  border:1px solid var(--sam-border);
  background:rgba(3,9,25,0.7);
  color:var(--sam-text);
  font-size:14px;
  font-family:inherit;
  outline:none;
}
.sam-input::placeholder{color:var(--sam-muted);}
.sam-send{
  width:46px;
  height:46px;
  border-radius:50%;
  border:none;
  background:linear-gradient(135deg,var(--sam-cyan),var(--sam-violet));
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  font-size:18px;
}
.sam-send:hover{filter:brightness(1.1);}

@media (max-width:540px){
  .sam-window{width:100%;right:0;left:0;bottom:88px;border-radius:24px 24px 0 0;height:calc(100vh - 88px);max-height:none;}
  .sam-fab{bottom:18px;right:18px;}
  .sam-services{grid-template-columns:1fr;}
  .sam-stat-grid{grid-template-columns:1fr 1fr;}
}