/* ── HISTORY: history tab + AI agent panel ── */

.history-toolbar{
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;flex-wrap:wrap;
}
.history-filter-select{
  background:var(--surface2);border:1px solid var(--border);
  border-radius:7px;color:var(--text);font-family:inherit;font-size:12px;
  padding:6px 10px;cursor:pointer;
  transition:border-color 0.15s;
}
.history-filter-select:hover,.history-filter-select:focus{border-color:var(--accent);outline:none}
.history-search-input{
  background:var(--surface2);border:1px solid var(--border);
  border-radius:7px;color:var(--text);font-family:inherit;font-size:12px;
  padding:6px 10px;width:180px;
  transition:border-color 0.15s;
}
.history-search-input:focus{outline:none;border-color:var(--accent)}
.history-search-input::placeholder{color:var(--text3)}
.hist-count{font-size:11px;color:var(--text3);margin-left:4px}
.history-table{width:100%;border-collapse:collapse}
.history-table th{
  padding:9px 12px;border-bottom:2px solid var(--border);
  font-size:10px;font-weight:600;text-transform:uppercase;
  letter-spacing:0.06em;color:var(--text3);white-space:nowrap;
  background:var(--surface);text-align:left;
}
.hist-row td{
  padding:9px 12px;border-bottom:1px solid var(--border);
  font-size:12px;color:var(--text2);vertical-align:middle;
}
.hist-row:last-child td{border-bottom:none}
.hist-row:hover td{background:var(--surface2)}
.hist-ts{color:var(--text3);font-family:'DM Mono',monospace;font-size:11px;white-space:nowrap}
.hist-entity{color:var(--text);font-weight:500}
.hist-val{color:var(--text2)}
.hist-val-empty{color:var(--text3);opacity:0.5}
.hist-detail{color:var(--text3);font-size:11px}
/* ── type pills ── */
.hist-pill{
  display:inline-block;padding:3px 9px;border-radius:10px;
  font-size:10px;font-weight:600;white-space:nowrap;letter-spacing:0.02em;
}
.hist-pill-green  {background:var(--green-bg);  color:var(--green)}
.hist-pill-red    {background:var(--red-bg);    color:var(--red)}
.hist-pill-blue   {background:var(--blue-bg);   color:var(--blue)}
.hist-pill-purple {background:var(--purple-bg); color:var(--purple)}
.hist-pill-amber  {background:var(--amber-bg);  color:var(--amber)}
.hist-pill-accent {background:var(--accent-bg); color:var(--accent2)}
.hist-pill-orange {background:var(--orange-bg); color:var(--orange)}
.hist-pill-muted  {background:var(--surface3);  color:var(--text3)}
/* ── empty state ── */
.history-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:80px 20px;gap:12px;
}
.history-empty .empty-icon{font-size:48px;opacity:0.25}
.history-empty .empty-title{font-family:'Bricolage Grotesque',sans-serif;font-size:18px;font-weight:600;color:var(--text2)}
.history-empty .empty-sub{font-size:13px;color:var(--text3);text-align:center;max-width:340px;line-height:1.6}

/* ── OPTIMISER LOGS — budget/target change indicators ── */
.optlog-up    { color: var(--green) }
.optlog-down  { color: var(--red) }
.optlog-flat  { color: var(--text2) }
.optlog-delta { font-size: 10px; opacity: 0.7 }
.optlog-target-label { font-size: 10px; font-weight: 600; color: var(--text3); margin-right: 2px }

/* ── OPTIMISER LOGS — grouped run cards ── */
.optlog-group{
  border:1px solid var(--border);border-radius:var(--radius);
  margin-bottom:8px;overflow:hidden;
  transition:border-color 0.15s;
}
.optlog-group:hover{border-color:var(--accent-border)}
.optlog-group-expanded{border-color:var(--accent-border)}

.optlog-group-header{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;cursor:pointer;
  background:var(--surface);
  transition:background-color 0.1s;
  user-select:none;
}
.optlog-group-header:hover{background:var(--surface2)}
.optlog-group-expanded .optlog-group-header{
  background:var(--surface2);
  border-bottom:1px solid var(--border);
}

.optlog-chevron{
  flex-shrink:0;width:16px;height:16px;
  display:flex;align-items:center;justify-content:center;
  color:var(--text3);transition:color 0.15s, transform 0.22s ease;
}
.optlog-group-expanded .optlog-chevron{transform:rotate(90deg)}
.optlog-group-header:hover .optlog-chevron{color:var(--text)}

.optlog-header-ts{
  font-family:'DM Mono',monospace;font-size:11px;
  color:var(--text3);white-space:nowrap;min-width:100px;
}
.optlog-header-port{
  font-weight:500;color:var(--text);font-size:12px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  max-width:200px;
}
.optlog-header-count{
  font-size:11px;color:var(--text3);white-space:nowrap;
}
.optlog-header-budget{
  font-size:12px;white-space:nowrap;margin-left:auto;
}

/* Pacing badge on group header */
.optlog-pace{
  display:inline-block;padding:2px 8px;border-radius:10px;
  font-size:10px;font-weight:600;white-space:nowrap;
  letter-spacing:0.02em;flex-shrink:0;
}
.optlog-pace-on             {background:color-mix(in srgb,var(--green) 15%,transparent);color:var(--green)}
.optlog-pace-slightly-ahead {background:color-mix(in srgb,var(--amber) 15%,transparent);color:var(--amber)}
.optlog-pace-ahead          {background:color-mix(in srgb,var(--red) 15%,transparent);  color:var(--red)}
.optlog-pace-slightly-behind{background:color-mix(in srgb,var(--amber) 15%,transparent);color:var(--amber)}
.optlog-pace-behind         {background:color-mix(in srgb,var(--red) 15%,transparent);  color:var(--red)}

/* Expanded body — spring-animated like portfolio cards */
.optlog-group-body{
  overflow:hidden;height:0;
  background:var(--surface);
}

/* Campaign detail table — direct child of body, naturally full-width */
.optlog-cam-table{
  width:100%;border-collapse:collapse;
  table-layout:fixed;
}
.optlog-cam-table th{
  padding:6px 10px;font-size:10px;font-weight:600;
  text-transform:uppercase;letter-spacing:0.06em;
  color:var(--text3);text-align:left;white-space:nowrap;
  border-bottom:1px solid var(--border);
}
/* Inset content from card edge */
.optlog-cam-table th:first-child,.optlog-cam-table td:first-child{padding-left:14px}
.optlog-cam-table th:last-child,.optlog-cam-table td:last-child{padding-right:14px}
/* Fixed column proportions */
.optlog-cam-table th:nth-child(1),
.optlog-cam-table td:nth-child(1){width:28%}    /* Campaign */
.optlog-cam-table th:nth-child(2),
.optlog-cam-table td:nth-child(2){width:10%}    /* Type */
.optlog-cam-table th:nth-child(3),
.optlog-cam-table td:nth-child(3){width:26%}    /* Budget */
.optlog-cam-table th:nth-child(4),
.optlog-cam-table td:nth-child(4){width:16%}    /* Target */
.optlog-cam-table th:nth-child(5),
.optlog-cam-table td:nth-child(5){width:20%}    /* Reason */
.optlog-cam-row td{
  padding:7px 10px;font-size:12px;color:var(--text2);
  border-bottom:1px solid color-mix(in srgb, var(--border) 50%, transparent);
  vertical-align:middle;
}
.optlog-cam-row:last-child td{border-bottom:none}
.optlog-cam-row:hover td{background:var(--surface2)}
.optlog-cam-name{font-weight:500;color:var(--text);max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.optlog-cam-type{color:var(--text3);font-size:11px;white-space:nowrap}

/* Reason tags */
.optlog-cam-tags{display:flex;gap:4px;flex-wrap:wrap}
.optlog-tag{
  display:inline-block;padding:2px 7px;border-radius:8px;
  font-size:9.5px;font-weight:600;white-space:nowrap;
  letter-spacing:0.02em;cursor:default;
}
/* Primary drivers — increase */
.optlog-tag-growth_tilt       {background:var(--green-bg);  color:var(--green)}
.optlog-tag-budget_headroom   {background:var(--green-bg);  color:var(--green)}
.optlog-tag-high_efficiency   {background:var(--green-bg);  color:var(--green)}
.optlog-tag-momentum          {background:var(--green-bg);  color:var(--green)}
/* Primary drivers — decrease */
.optlog-tag-diminishing_returns{background:var(--red-bg);   color:var(--red)}
.optlog-tag-low_efficiency    {background:var(--red-bg);    color:var(--red)}
.optlog-tag-saturated         {background:var(--red-bg);    color:var(--red)}
.optlog-tag-declining         {background:var(--red-bg);    color:var(--red)}
/* Primary drivers — neutral */
.optlog-tag-rebalance         {background:var(--surface3);  color:var(--text2)}
.optlog-tag-steady            {background:var(--surface3);  color:var(--text3)}
.optlog-tag-learning          {background:var(--blue-bg);   color:var(--blue)}
.optlog-tag-post_learning     {background:var(--surface3);  color:var(--text3)}
/* Modifiers — constraints */
.optlog-tag-spend_ceiling     {background:var(--amber-bg);  color:var(--amber)}
.optlog-tag-step_limited      {background:var(--amber-bg);  color:var(--amber)}
.optlog-tag-cumulative_throttle{background:var(--amber-bg); color:var(--amber)}
/* Modifiers — context */
.optlog-tag-rank_pressure     {background:var(--purple-bg); color:var(--purple)}
.optlog-tag-reserve_grant     {background:var(--accent-bg); color:var(--accent2)}
.optlog-tag-anomaly           {background:var(--red-bg);    color:var(--red)}
.optlog-tag-default           {background:var(--surface3);  color:var(--text3)}

/* Reasoning collapsible — padded separately since table is full-bleed */
.optlog-reasoning{margin:8px 14px 14px}
.optlog-reasoning-toggle{
  font-size:11px;color:var(--text3);cursor:pointer;
  padding:4px 0;user-select:none;
  transition:color 0.15s;
}
.optlog-reasoning-toggle:hover{color:var(--text)}
.optlog-reasoning-body{
  margin-top:8px;padding:12px;
  background:var(--surface2);border-radius:var(--radius);
  font-size:12px;color:var(--text2);line-height:1.6;
}
.optlog-reasoning-body p{margin:0 0 8px}
.optlog-reasoning-body p:last-child{margin-bottom:0}
.optlog-reasoning-body strong{color:var(--text);font-weight:500}

/* Legacy section */
.optlog-legacy-section{margin-top:20px}
.optlog-legacy-label{
  font-size:11px;font-weight:600;text-transform:uppercase;
  letter-spacing:0.06em;color:var(--text3);margin-bottom:8px;
}
.optlog-legacy-table{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}

/* ═══════════════════════════════════════════════════════════════════════════
   AI AGENT — floating button + chat panel
═══════════════════════════════════════════════════════════════════════════ */

.agent-fab{
  position:fixed;bottom:24px;right:24px;z-index:400;
  width:48px;height:48px;border-radius:50%;
  background:var(--accent);border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-lg);
  font-size:18px;color:white;line-height:1;
  opacity:0.6;
  transition:transform 0.2s ease,box-shadow 0.2s ease,opacity 0.2s ease,background-color var(--mode-transition);
}
.agent-fab:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-xl),0 0 18px var(--accent-glow);
  opacity:1;
}
/* Orbital sparkle particles */
.agent-fab::before,.agent-fab::after{
  content:'✦';
  position:absolute;
  top:calc(50% - 5px);left:calc(50% - 5px);
  width:10px;height:10px;
  font-size:9px;line-height:10px;text-align:center;
  pointer-events:none;opacity:0;
}
.agent-fab::before{color:var(--spark-a);}
.agent-fab::after{color:var(--spark-b);}
.agent-fab:hover::before{animation:fab-orbit-a 1.4s cubic-bezier(0,0,0.2,1) 1 forwards}
.agent-fab:hover::after{animation:fab-orbit-b 1.4s cubic-bezier(0,0,0.2,1) 1 forwards;animation-delay:0.07s}
@keyframes fab-orbit-a{
  0%{transform:rotate(0deg) translateX(28px);opacity:0}
  8%{opacity:1}
  88%{opacity:0.9}
  100%{transform:rotate(1080deg) translateX(28px);opacity:0}
}
@keyframes fab-orbit-b{
  0%{transform:rotate(180deg) translateX(28px);opacity:0}
  8%{opacity:1}
  88%{opacity:0.9}
  100%{transform:rotate(1260deg) translateX(28px);opacity:0}
}
/* Icon: plain white, fully opaque */
.agent-fab-open{display:flex;align-items:center;justify-content:center;pointer-events:none}
.agent-fab-close{display:none;font-size:14px}
.agent-fab.panel-open .agent-fab-open{display:none}
.agent-fab.panel-open .agent-fab-close{display:flex}

.agent-panel{
  position:fixed;bottom:84px;right:24px;z-index:400;
  width:380px;height:520px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);
  display:flex;flex-direction:column;overflow:hidden;
  opacity:0;pointer-events:none;
  transform:translateY(8px);
  transition:opacity 0.2s ease,transform 0.2s ease,
    background-color var(--mode-transition),border-color var(--mode-transition),box-shadow var(--mode-transition);
}
.agent-panel.open{opacity:1;pointer-events:all;transform:translateY(0)}

.agent-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 14px;border-bottom:1px solid var(--border);
  background:var(--surface2);flex-shrink:0;
}
.agent-header-title{
  font-size:12.5px;font-weight:500;color:var(--text);
  display:flex;align-items:center;gap:6px;
}
.agent-header-actions{display:flex;align-items:center;gap:4px}
.agent-clear-btn{
  background:none;border:none;cursor:pointer;
  font-size:11px;color:var(--text3);padding:3px 7px;border-radius:5px;font-family:inherit;
  transition:color 0.1s,background 0.1s;
}
.agent-clear-btn:hover{color:var(--text2);background:var(--border)}
.agent-close-btn{
  background:none;border:none;cursor:pointer;
  font-size:13px;color:var(--text3);padding:3px 7px;border-radius:5px;font-family:inherit;line-height:1;
  transition:color 0.1s,background 0.1s;
}
.agent-close-btn:hover{color:var(--text);background:var(--border)}

.agent-messages{
  flex:1;overflow-y:auto;padding:14px;
  display:flex;flex-direction:column;gap:8px;
}
.agent-msg{max-width:90%;word-break:break-word;font-size:12.5px;line-height:1.55}
.agent-msg-user{
  align-self:flex-end;
  background:var(--accent-bg);border:1px solid var(--accent-border);
  border-radius:var(--radius) var(--radius) 4px var(--radius);
  padding:8px 12px;color:var(--text);
}
.agent-msg-agent{
  align-self:flex-start;
  background:var(--surface2);border:1px solid var(--border);
  border-radius:4px var(--radius) var(--radius) var(--radius);
  padding:8px 12px;color:var(--text);
}
.agent-msg-icon{font-size:10px;color:var(--accent);margin-right:3px;vertical-align:middle}

/* Typing indicator */
.agent-typing{
  align-self:flex-start;
  background:var(--surface2);border:1px solid var(--border);
  border-radius:4px var(--radius) var(--radius) var(--radius);
  padding:10px 14px;display:flex;align-items:center;gap:4px;flex-shrink:0;
}
.agent-typing-dot{
  width:5px;height:5px;border-radius:50%;background:var(--text3);
  animation:agent-bounce 1.2s ease-in-out infinite;
}
.agent-typing-dot:nth-child(2){animation-delay:0.2s}
.agent-typing-dot:nth-child(3){animation-delay:0.4s}
@keyframes agent-bounce{
  0%,80%,100%{transform:translateY(0);opacity:0.4}
  40%{transform:translateY(-4px);opacity:1}
}

/* Confirmation card */
.agent-confirm-card{
  margin-top:4px;
  background:var(--surface3);
  border-left:3px solid var(--accent-border);
  border-radius:0 8px 8px 0;
  padding:10px 12px;font-size:12px;
}
.agent-confirm-desc{color:var(--text2);margin-bottom:8px;line-height:1.55}
.agent-confirm-btns{display:flex;gap:6px}
.agent-confirm-btns .btn{font-size:11px;padding:5px 12px;transition:opacity 0.15s ease,background-color 0.2s ease}
.agent-confirm-btns .btn.btn-confirmed{background:var(--green-confirmed)!important;border-color:var(--green-confirmed)!important;color:white!important;opacity:1!important;pointer-events:none}

/* Input area */
.agent-input-area{
  display:flex;align-items:flex-end;gap:8px;
  border-top:1px solid var(--border);background:var(--surface);
  padding:10px 12px;flex-shrink:0;
}
.agent-input{
  flex:1;background:var(--surface2);border:1px solid var(--border);
  border-radius:var(--radius);color:var(--text);font-family:inherit;
  font-size:12.5px;padding:8px 10px;resize:none;
  line-height:1.4;max-height:100px;overflow-y:auto;outline:none;
  transition:border-color 0.15s,background-color var(--mode-transition),border-color var(--mode-transition);
}
.agent-input:focus{border-color:var(--accent-border)}
.agent-input::placeholder{color:var(--text3)}
.agent-input:disabled{opacity:0.5;cursor:not-allowed}
.agent-send-btn{
  background:var(--accent);border:none;color:white;
  border-radius:var(--radius);cursor:pointer;
  padding:8px 10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:opacity 0.15s,background-color var(--mode-transition);align-self:flex-end;
}
.agent-send-btn:hover{opacity:0.85}
.agent-send-btn:disabled{opacity:0.4;cursor:not-allowed}

@media(max-width:480px){
  .agent-panel{
    bottom:0;right:0;left:0;width:100%;
    height:calc(100dvh - 72px);
    border-radius:var(--radius-lg) var(--radius-lg) 0 0;
  }
  .agent-fab{bottom:16px;right:16px}
}