/*
 * Minimal portfolio assistant surface. Capability stays in the agent and its
 * page actions; the chrome remains quiet and editorial.
 */

.chat-bubble {
  position: fixed;
  right: var(--s-5);
  bottom: var(--s-5);
  z-index: 999;
}

body.has-open-modal .chat-bubble:not(.tool-working) { display: none !important; }

.chat-button {
  width: 48px;
  height: 48px;
  border: 1px solid var(--ink);
  border-radius: var(--r-0);
  background: var(--ink);
  color: var(--paper);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  font-size: var(--t-16);
  cursor: pointer;
  box-shadow: 6px 6px 0 color-mix(in srgb, var(--ink) 12%, transparent);
  transition: transform var(--dur-1) var(--ease-step), background var(--dur-1) var(--ease-step);
}

.chat-button:hover {
  background: var(--mark);
  border-color: var(--mark);
  transform: translate(-2px, -2px);
}

.chat-button::after {
  content: '';
  position: absolute;
  top: 6px;
  right: 6px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mark);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--mark) 14%, transparent);
  animation: ledBlink 1.6s var(--ease-snap) infinite;
}

.chat-window:not(.active) { display: none !important; }

.chat-window {
  position: fixed;
  right: var(--s-5);
  bottom: var(--s-5);
  width: min(420px, calc(100vw - var(--s-5) * 2));
  height: min(600px, calc(100vh - var(--s-5) * 2));
  min-height: 460px;
  border: 1px solid var(--ink);
  border-radius: var(--r-0);
  background: var(--paper);
  box-shadow: 12px 12px 0 color-mix(in srgb, var(--ink) 14%, transparent), var(--shadow-modal);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: var(--t-12);
  transform-origin: bottom right;
  animation: chatConsoleIn 220ms var(--ease-snap) both;
}

@keyframes chatConsoleIn {
  from { opacity: 0; transform: translateY(10px) scale(.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.chat-header {
  min-height: 46px;
  padding: 7px 9px 7px 10px;
  background: var(--ink);
  color: var(--paper);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
}

.chat-identity {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chat-identity-mark {
  width: 26px;
  height: 26px;
  border: 1px solid color-mix(in srgb, var(--paper) 55%, transparent);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  font-weight: 700;
  letter-spacing: .06em;
}

.chat-identity strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-identity strong {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .13em;
}

.chat-close-button {
  width: 28px;
  height: 28px;
  padding: 0;
  border: 1px solid color-mix(in srgb, var(--paper) 25%, transparent);
  background: transparent;
  color: var(--paper);
  display: grid;
  place-items: center;
  font-size: var(--t-16);
  line-height: 1;
  cursor: pointer;
}

.chat-close-button:hover { border-color: var(--mark); color: var(--mark); }

.chat-messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 15px 14px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--paper);
  scrollbar-width: thin;
  scrollbar-color: var(--rule-2) transparent;
}

.message {
  max-width: 92%;
  padding: 9px 12px 10px;
  border-left: 2px solid var(--rule);
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: var(--t-14);
  line-height: 1.5;
  animation: chatMessageIn 180ms var(--ease-snap) both;
}

@keyframes chatMessageIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.message p { margin: 0 0 8px; }
.message p:last-child { margin-bottom: 0; }
.message ul,
.message ol { margin: 7px 0; padding-left: 20px; }
.message li + li { margin-top: 5px; }
.message code {
  padding: 1px 4px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  font-family: var(--font-mono);
  font-size: .88em;
}

.message a {
  color: var(--ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.message a:hover { color: var(--mark); }

.message.user-message {
  align-self: flex-end;
  border-left: 0;
  border-right: 2px solid var(--ink);
  background: var(--paper-2);
}

.message.assistant-message {
  align-self: flex-start;
  border-left-color: var(--mark);
  background: color-mix(in srgb, var(--paper) 94%, var(--mark) 6%);
}

.message.error { border-color: var(--mark); }

.message::before {
  content: attr(data-role);
  display: block;
  margin-bottom: 4px;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.message.user-message::before { content: 'YOU'; }
.message.assistant-message::before { content: '// AP AGENT'; color: var(--mark); }

.chat-welcome-message {
  max-width: 100%;
  padding: 0;
  border: 0;
  background: transparent !important;
  color: var(--ink-2);
}

.chat-welcome-message::before { display: none; }

.loading-dots { height: 18px; display: flex; align-items: center; gap: 4px; }
.loading-dots span {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--mark);
  animation: agentDot 900ms infinite alternate;
}
.loading-dots span:nth-child(2) { animation-delay: 150ms; }
.loading-dots span:nth-child(3) { animation-delay: 300ms; }
@keyframes agentDot { from { opacity: .2; transform: translateY(1px); } to { opacity: 1; transform: translateY(-2px); } }

.chat-sample-questions {
  padding: 0 14px 14px;
  border-top: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  background: var(--paper);
}

.sample-question-button {
  min-height: 45px;
  padding: 8px 9px;
  border: 1px solid var(--rule);
  border-radius: var(--r-0);
  background: var(--paper);
  color: var(--ink);
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 7px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 8.5px;
  line-height: 1.35;
  text-transform: uppercase;
  letter-spacing: .045em;
  cursor: pointer;
  transition: background var(--dur-1) var(--ease-step), color var(--dur-1) var(--ease-step), border-color var(--dur-1) var(--ease-step);
}

.sample-question-button span { color: var(--mark); }
.sample-question-button:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.chat-activity {
  min-height: 0;
  padding: 0 14px 10px;
  border-top: 0;
  background: var(--paper);
  display: block;
}

.chat-activity[hidden] { display: none !important; }

.chat-activity-log {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  scrollbar-width: none;
}
.chat-activity-log:empty { display: none; }
.chat-action-receipt {
  padding: 3px 6px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  color: var(--ink-2);
  white-space: nowrap;
  font-size: 8px;
}
.chat-action-receipt::before { content: '✓ '; color: var(--mark); }
.chat-action-receipt.is-link { color: var(--ink); cursor: pointer; text-decoration: none; }
.chat-action-receipt.is-link:hover { border-color: var(--mark); color: var(--mark); }

.chat-input-container {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  border-top: 1px solid var(--ink);
  background: var(--paper);
}

#chat-input {
  min-height: 48px;
  max-height: 116px;
  resize: none;
  overflow-y: auto;
  margin: 0;
  padding: 12px;
  border: 0;
  border-radius: var(--r-0);
  outline: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--t-11);
  line-height: 1.45;
}

#chat-input:focus { box-shadow: inset 2px 0 0 var(--mark); }
#chat-input:disabled { opacity: .65; }

#chat-send-button {
  min-width: 52px;
  border: 0;
  border-left: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  cursor: pointer;
  transition: background var(--dur-1) var(--ease-step);
}

#chat-send-button i { color: var(--mark); font-style: normal; font-size: 16px; }
#chat-send-button:hover { background: var(--mark); }
#chat-send-button:hover i { color: var(--paper); }
#chat-send-button:disabled { cursor: wait; opacity: .72; }

.project-card.ai-focused {
  border-color: var(--mark) !important;
  box-shadow: inset 3px 0 0 var(--mark), 0 0 0 1px var(--mark);
}

/* A quiet perimeter signal shows when the assistant is controlling the page. */
html.ai-page-control::after {
  content: '';
  position: fixed;
  z-index: 2147483646;
  inset: 0;
  pointer-events: none;
  border: 1px solid color-mix(in srgb, var(--mark) 72%, transparent);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--mark) 12%, transparent),
    inset 0 0 22px color-mix(in srgb, var(--mark) 9%, transparent);
  animation: aiPageControlPulse 1800ms ease-in-out infinite;
}

@keyframes aiPageControlPulse {
  0%, 100% {
    border-color: color-mix(in srgb, var(--mark) 58%, transparent);
    box-shadow:
      inset 0 0 0 1px color-mix(in srgb, var(--mark) 8%, transparent),
      inset 0 0 16px color-mix(in srgb, var(--mark) 6%, transparent);
  }
  50% {
    border-color: color-mix(in srgb, var(--mark) 88%, transparent);
    box-shadow:
      inset 0 0 0 1px color-mix(in srgb, var(--mark) 18%, transparent),
      inset 0 0 28px color-mix(in srgb, var(--mark) 12%, transparent);
  }
}

@media (max-width: 640px) {
  .chat-bubble { right: 8px; bottom: max(8px, env(safe-area-inset-bottom)); }
  .chat-button {
    width: 38px;
    height: 38px;
    font-size: var(--t-14);
    box-shadow: 3px 3px 0 color-mix(in srgb, var(--ink) 10%, transparent);
  }
  .chat-bubble.tool-working {
    display: flex !important;
    align-items: center;
    gap: 8px;
    transform-origin: bottom right;
    animation: chatWorkingIndicatorIn 280ms cubic-bezier(.18, .8, .24, 1) 100ms both;
  }
  .chat-bubble.tool-working::before {
    content: 'AP AGENT / VIEWING PAGE';
    padding: 8px 10px;
    border: 1px solid var(--ink);
    background: var(--paper);
    color: var(--ink);
    box-shadow: 4px 4px 0 color-mix(in srgb, var(--ink) 12%, transparent);
    font-family: var(--font-mono);
    font-size: 8px;
    line-height: 1;
    letter-spacing: .08em;
    white-space: nowrap;
  }
  .chat-bubble.tool-working .chat-button {
    width: 36px;
    height: 36px;
    cursor: wait;
    box-shadow: none;
  }
  .chat-window {
    inset: auto 10px 10px;
    width: auto;
    height: min(72dvh, 610px);
    min-height: min(430px, calc(100dvh - 28px));
    max-height: calc(100dvh - 28px);
    max-width: none;
    border: 1px solid var(--ink);
    box-shadow: 6px 6px 0 color-mix(in srgb, var(--ink) 14%, transparent);
  }
  .chat-window.mobile-tool-away {
    pointer-events: none;
    animation: chatToolAway 320ms cubic-bezier(.55, 0, .85, .3) both;
  }
  .chat-window.mobile-result-compact {
    inset: auto 10px 10px;
    width: auto;
    height: min(58dvh, 500px);
    min-height: min(380px, calc(100dvh - 20px));
  }
  .chat-window.mobile-result-compact .chat-header { min-height: 46px; }
  .chat-window.mobile-result-compact .chat-messages { padding-block: 12px; }
  .chat-window.mobile-tool-returning {
    animation: chatToolReturn 420ms cubic-bezier(.16, .84, .24, 1) both;
  }
  .chat-header { min-height: 46px; }
  .chat-sample-questions { grid-template-columns: 1fr 1fr; }
  .sample-question-button { min-height: 48px; padding: 7px; }
  .chat-messages { padding: 15px 13px; }
  .message { max-width: 96%; }
  .chat-header { grid-template-columns: 1fr auto; }

  @keyframes chatToolAway {
    0% {
      opacity: 1;
      transform: translateY(0) scale(1);
      clip-path: inset(0 0 0 0);
      box-shadow: 6px 6px 0 color-mix(in srgb, var(--ink) 14%, transparent);
    }
    48% {
      opacity: .9;
      transform: translateY(8px) scale(.992);
      clip-path: inset(0 0 0 0);
    }
    100% {
      opacity: 0;
      transform: translateY(44px) scale(.965);
      clip-path: inset(100% 0 0 0);
      box-shadow: 0 0 0 color-mix(in srgb, var(--ink) 0%, transparent);
    }
  }

  @keyframes chatToolReturn {
    0% {
      opacity: 0;
      transform: translateY(44px) scale(.965);
      clip-path: inset(100% 0 0 0);
      box-shadow: 0 0 0 color-mix(in srgb, var(--ink) 0%, transparent);
    }
    58% {
      opacity: 1;
      transform: translateY(-3px) scale(1.004);
      clip-path: inset(0 0 0 0);
    }
    100% {
      opacity: 1;
      transform: translateY(0) scale(1);
      clip-path: inset(0 0 0 0);
      box-shadow: 6px 6px 0 color-mix(in srgb, var(--ink) 14%, transparent);
    }
  }

  @keyframes chatWorkingIndicatorIn {
    from { opacity: 0; transform: translateY(10px) scale(.94); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat-window,
  .message,
  .chat-button,
  .loading-dots span,
  .chat-action-receipt { animation: none !important; transition: none !important; }

  html.ai-page-control::after {
    animation: none !important;
    border-color: color-mix(in srgb, var(--mark) 72%, transparent);
  }
}