/* AI Assistant — full-screen overlay for SUPER_ADMIN
   Z Fold 7 adaptive: outer screen (~362px), inner screen (~717px+)
   Keyboard-safe via CSS custom property set by JS (--ai-vp-height)
   Inherits MM CSS variables for dark/light theme */

/* ── Overlay container ─────────────────────────────────────────────────────── */
.mm-ai {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--mm-page-bg);
  display: flex;
  flex-direction: column;
  height: var(--ai-vp-height, 100dvh);
  /* smooth open/close */
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.2s ease;
  pointer-events: none;
}

.mm-ai.mm-ai--open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

/* ── Topbar ─────────────────────────────────────────────────────────────────── */
.mm-ai-topbar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px 10px;
  /* seamless status bar — blends with system UI like Bitrix */
  padding-top: calc(12px + env(safe-area-inset-top));
  border-bottom: 1px solid var(--mm-border);
  background: var(--mm-page-bg);
  /* stays on top when scrolling */
  position: relative;
  z-index: 2;
}

.mm-ai-back {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--mm-border);
  background: var(--mm-surface);
  color: var(--mm-text);
  font-size: 20px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.15s;
}

.mm-ai-back:hover {
  background: var(--mm-border);
}

.mm-ai-title {
  flex: 1 1 auto;
  font-weight: 700;
  font-size: 17px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mm-ai-status-badge {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 196, 180, 0.12);
  color: var(--mm-accent);
  transition: background 0.2s, color 0.2s;
}

.mm-ai-status-badge.offline {
  background: rgba(214, 69, 69, 0.14);
  color: var(--mm-danger);
}

.mm-ai-status-badge.typing {
  background: rgba(61, 142, 255, 0.14);
  color: #5aa9ff;
}

/* ── Provider tabs ──────────────────────────────────────────────────────────── */
.mm-ai-providers {
  flex: 0 0 auto;
  display: flex;
  gap: 8px;
  padding: 10px 16px;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--mm-border);
}

.mm-ai-providers::-webkit-scrollbar {
  display: none;
}

.mm-ai-provider-btn {
  flex: 0 0 auto;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--mm-border);
  background: var(--mm-surface);
  color: var(--mm-text-muted);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.mm-ai-provider-btn.active {
  background: var(--mm-accent);
  color: var(--mm-accent-text);
  border-color: transparent;
}

.mm-ai-provider-btn:not(.active):hover {
  background: var(--mm-border);
  color: var(--mm-text);
}

/* ── Offline queue banner ───────────────────────────────────────────────────── */
.mm-ai-offline-banner {
  flex: 0 0 auto;
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: rgba(214, 69, 69, 0.1);
  border-bottom: 1px solid rgba(214, 69, 69, 0.2);
  font-size: 12px;
  color: var(--mm-danger);
}

.mm-ai-offline-banner.visible {
  display: flex;
}

.mm-ai-offline-banner b {
  font-weight: 700;
}

/* ── Messages area ──────────────────────────────────────────────────────────── */
.mm-ai-messages {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  -webkit-overflow-scrolling: touch;
  /* anchor scroll to bottom */
  scroll-anchor: end;
}

.mm-ai-messages::-webkit-scrollbar {
  width: 4px;
}

.mm-ai-messages::-webkit-scrollbar-thumb {
  background: var(--mm-border);
  border-radius: 2px;
}

/* ── Bubbles ────────────────────────────────────────────────────────────────── */
.mm-ai-bubble {
  display: flex;
  flex-direction: column;
  max-width: 85%;
  animation: mm-ai-bubble-in 0.18s ease;
}

@keyframes mm-ai-bubble-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.mm-ai-bubble.user {
  align-self: flex-end;
  align-items: flex-end;
}

.mm-ai-bubble.assistant {
  align-self: flex-start;
  align-items: flex-start;
}

.mm-ai-bubble-role {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mm-text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
}

.mm-ai-bubble.user .mm-ai-bubble-role {
  color: var(--mm-accent);
}

.mm-ai-bubble-text {
  padding: 11px 15px;
  border-radius: 18px;
  font-size: 14px;
  line-height: 1.55;
  word-break: break-word;
  white-space: pre-wrap;
}

.mm-ai-bubble.user .mm-ai-bubble-text {
  background: var(--mm-accent);
  color: var(--mm-accent-text);
  border-bottom-right-radius: 5px;
}

.mm-ai-bubble.assistant .mm-ai-bubble-text {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--mm-border);
  border-bottom-left-radius: 5px;
}

html[data-theme="light"] .mm-ai-bubble.assistant .mm-ai-bubble-text {
  background: var(--mm-surface);
}

/* error bubble */
.mm-ai-bubble.error .mm-ai-bubble-text {
  background: rgba(214, 69, 69, 0.1);
  border-color: rgba(214, 69, 69, 0.3);
  color: var(--mm-danger);
}

/* queued/pending bubble */
.mm-ai-bubble.pending .mm-ai-bubble-text {
  opacity: 0.6;
}

.mm-ai-bubble-meta {
  font-size: 11px;
  color: var(--mm-text-muted);
  margin-top: 3px;
  padding: 0 4px;
}

/* Typing indicator */
.mm-ai-typing {
  align-self: flex-start;
  display: flex;
  gap: 5px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--mm-border);
  border-radius: 18px;
  border-bottom-left-radius: 5px;
}

.mm-ai-typing span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mm-text-muted);
  animation: mm-ai-bounce 1.2s infinite;
}

.mm-ai-typing span:nth-child(2) { animation-delay: 0.2s; }
.mm-ai-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes mm-ai-bounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.5; }
  40%           { transform: translateY(-5px); opacity: 1; }
}

/* empty state */
.mm-ai-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 32px;
  text-align: center;
}

.mm-ai-empty-icon {
  font-size: 40px;
  opacity: 0.5;
}

.mm-ai-empty-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--mm-text);
}

.mm-ai-empty-hint {
  font-size: 13px;
  color: var(--mm-text-muted);
  max-width: 260px;
}

/* ── Input area ─────────────────────────────────────────────────────────────── */
.mm-ai-inputbar {
  flex: 0 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 12px 16px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
  border-top: 1px solid var(--mm-border);
  background: var(--mm-page-bg);
}

.mm-ai-textarea {
  flex: 1 1 auto;
  min-height: 44px;
  max-height: 140px;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid var(--mm-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--mm-text);
  font-size: 15px;
  line-height: 1.4;
  resize: none;
  outline: none;
  font-family: inherit;
  overflow-y: auto;
  transition: border-color 0.15s;
}

html[data-theme="light"] .mm-ai-textarea {
  background: var(--mm-surface);
}

.mm-ai-textarea:focus {
  border-color: var(--mm-accent);
}

.mm-ai-textarea::placeholder {
  color: var(--mm-text-muted);
}

.mm-ai-send {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: none;
  background: var(--mm-accent);
  color: var(--mm-accent-text);
  font-size: 20px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: opacity 0.15s, transform 0.1s;
}

.mm-ai-send:disabled {
  opacity: 0.35;
  cursor: default;
}

.mm-ai-send:not(:disabled):active {
  transform: scale(0.93);
}

/* New conversation button */
.mm-ai-new-btn {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--mm-border);
  background: var(--mm-surface);
  color: var(--mm-text-muted);
  font-size: 18px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.15s, color 0.15s;
}

.mm-ai-new-btn:hover {
  background: var(--mm-border);
  color: var(--mm-text);
}

/* ── Samsung Z Fold 7 — inner screen (≥600px) ──────────────────────────────── */
@media (min-width: 600px) {
  .mm-ai-bubble {
    max-width: 72%;
  }

  .mm-ai-textarea {
    font-size: 16px;
  }

  .mm-ai-topbar {
    padding: 14px 24px 12px;
  }

  .mm-ai-providers {
    padding: 10px 24px;
  }

  .mm-ai-messages {
    padding: 20px 24px;
    /* on wide inner screen, cap width for readability */
    max-width: 800px;
    margin-inline: auto;
    width: 100%;
    box-sizing: border-box;
  }

  .mm-ai-inputbar {
    padding: 14px 24px;
    padding-bottom: max(14px, env(safe-area-inset-bottom));
    max-width: 800px;
    margin-inline: auto;
    width: 100%;
    box-sizing: border-box;
  }

  /* provider tabs look wider */
  .mm-ai-provider-btn {
    padding: 9px 24px;
    font-size: 14px;
  }
}

/* ── Landscape on outer screen ─────────────────────────────────────────────── */
@media (max-height: 500px) and (max-width: 599px) {
  .mm-ai-topbar {
    padding: 8px 14px;
  }

  .mm-ai-providers {
    padding: 7px 14px;
  }

  .mm-ai-inputbar {
    padding: 8px 14px;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
  }

  .mm-ai-messages {
    padding: 10px 14px;
  }

  .mm-ai-bubble-text {
    font-size: 13px;
    padding: 9px 13px;
  }
}

/* ── Reduce motion ──────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .mm-ai,
  .mm-ai-bubble {
    animation: none;
    transition: none;
  }
}

/* ── AI Settings panel ─────────────────────────────────────────────────────── */
.mm-ai-settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.mm-ai-settings-panel {
  background: var(--mm-card-bg, #fff);
  border-radius: 16px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

.mm-ai-settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--mm-border, #e5e7eb);
}

.mm-ai-settings-header h2 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--mm-text, #111);
}

.mm-ai-settings-close {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--mm-text-muted, #888);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
  line-height: 1;
}

.mm-ai-settings-close:hover {
  background: var(--mm-hover-bg, #f3f4f6);
}

.mm-ai-settings-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mm-ai-settings-hint {
  margin: 0;
  font-size: 13px;
  color: var(--mm-text-muted, #888);
  line-height: 1.5;
}

.mm-ai-settings-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mm-ai-settings-field label {
  font-size: 13px;
  font-weight: 500;
  color: var(--mm-text, #111);
}

.mm-ai-settings-provider-hint {
  font-weight: 400;
  color: var(--mm-text-muted, #888);
}

.mm-ai-settings-field input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  border: 1px solid var(--mm-border, #e5e7eb);
  border-radius: 10px;
  font-size: 14px;
  font-family: monospace;
  background: var(--mm-input-bg, #f9fafb);
  color: var(--mm-text, #111);
  outline: none;
  transition: border-color 0.15s;
}

.mm-ai-settings-field input:focus {
  border-color: var(--mm-accent, #3b82f6);
}

.mm-ai-settings-status {
  font-size: 12px;
  color: var(--mm-text-muted, #888);
}

.mm-ai-settings-status.ok {
  color: #22c55e;
}

.mm-ai-settings-actions {
  display: flex;
  gap: 10px;
}

.mm-ai-settings-feedback {
  font-size: 13px;
  min-height: 18px;
  color: var(--mm-text-muted, #888);
}

.mm-ai-settings-feedback.ok {
  color: #22c55e;
}

.mm-ai-settings-feedback.error {
  color: #ef4444;
}