/* ============================================================
 * Binderim AI sohbet paneli (Issue #1811)
 * Sağdan kayan 600px panel + açma ikonu (masaüstü nav + mobil çekmece).
 * Tüm renkler binderim-tokens.css değişkenlerinden gelir (light/dark otomatik).
 * ============================================================ */

/* ---------- Açma ikonu (masaüstü nav, .bx-nav-pricing ile aynı boyut) ---------- */
.bx-nav-ai {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; padding: 0; margin: 6px 4px 6px 0;
  border-radius: var(--radius-md); flex-shrink: 0;
  color: var(--fg-2);
  border: 1px solid var(--border-1); background: transparent;
  cursor: pointer;
  transition: color 150ms var(--ease-standard), border-color 150ms var(--ease-standard), background 150ms var(--ease-standard);
}
.bx-nav-ai:hover,
.bx-nav-ai[aria-expanded="true"] {
  color: var(--color-brand); border-color: var(--color-brand); background: var(--color-brand-soft);
}
.bx-nav-ai .bi { font-size: 16px; line-height: 1; }

/* ---------- Backdrop ---------- */
.bai-backdrop {
  position: fixed; inset: 0;
  background: var(--bg-overlay);
  z-index: 1200;
  opacity: 0;
  transition: opacity var(--motion-base) var(--ease-standard);
}
.bai-backdrop.is-open { opacity: 1; }

/* ---------- Panel shell ---------- */
.bai-panel {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: 600px; max-width: 100vw;
  background: var(--bg-canvas);
  border-left: 1px solid var(--border-1);
  box-shadow: var(--shadow-xl);
  z-index: 1210;
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--motion-base) var(--ease-standard);
}
.bai-panel.is-open { transform: translateX(0); }
.bai-panel[hidden] { display: none; }

/* ---------- Header ---------- */
.bai-panel-header {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-1);
  flex-shrink: 0;
}
.bai-panel-header-text { flex: 1 1 auto; min-width: 0; }
.bai-panel-title {
  margin: 0; font-family: var(--font-sans); font-weight: 800;
  font-size: var(--fs-lg); color: var(--fg-1);
  display: flex; align-items: center; gap: var(--space-2);
}
.bai-panel-title .bi { color: var(--color-brand); }
.bai-panel-subtitle {
  margin: 2px 0 0; font-family: var(--font-sans); font-size: var(--fs-xs); color: var(--fg-3);
}
.bai-quota-badge {
  flex-shrink: 0; align-self: center;
  display: inline-flex; align-items: center; gap: 4px;
  font-family: var(--font-sans); font-size: var(--fs-xs); font-weight: 700;
  padding: 6px 10px; border-radius: var(--radius-pill);
  background: var(--bg-sunken); color: var(--fg-2);
  white-space: nowrap;
}
.bai-quota-badge.bai-quota-low { background: var(--color-warning-soft); color: var(--fg-1); }
.bai-quota-badge.bai-quota-exhausted { background: var(--color-danger-soft); color: var(--fg-1); }
.bai-close-btn {
  flex-shrink: 0; width: 36px; height: 36px; min-width: 44px; min-height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; background: transparent; border-radius: var(--radius-md);
  color: var(--fg-2); cursor: pointer;
  transition: background var(--motion-fast) var(--ease-standard);
  margin: -4px -8px -4px 0;
}
.bai-close-btn:hover { background: var(--bg-sunken); color: var(--fg-1); }

/* ---------- Body / messages ---------- */
.bai-panel-body {
  flex: 1 1 auto; min-height: 0; overflow-y: auto;
  padding: var(--space-4) var(--space-5);
  display: flex; flex-direction: column; gap: var(--space-3);
  /* Uzun sohbette kaydırma performansı — kendi scroll konteynerine izole edilir. */
  overscroll-behavior: contain;
}

.bai-empty-state {
  margin: auto 0; text-align: center; padding: var(--space-6) var(--space-4);
  color: var(--fg-3);
}
.bai-empty-icon { font-size: 32px; color: var(--color-brand); display: block; margin-bottom: var(--space-3); }
.bai-empty-title { margin: 0 0 var(--space-2); font-family: var(--font-sans); font-weight: 800; font-size: var(--fs-base); color: var(--fg-1); }
.bai-empty-body { margin: 0; font-family: var(--font-sans); font-size: var(--fs-sm); line-height: var(--lh-relaxed); }

.bai-messages { display: flex; flex-direction: column; gap: var(--space-4); }

.bai-msg { display: flex; flex-direction: column; max-width: 88%; }
.bai-msg-user { align-self: flex-end; align-items: flex-end; }
.bai-msg-assistant { align-self: flex-start; align-items: flex-start; }
.bai-msg-system { align-self: center; align-items: center; max-width: 100%; }

.bai-msg-bubble {
  font-family: var(--font-sans); font-size: var(--fs-sm); line-height: var(--lh-relaxed);
  padding: 10px 14px; border-radius: var(--radius-lg);
  white-space: pre-wrap; word-break: break-word;
}
.bai-msg-user .bai-msg-bubble { background: var(--color-brand); color: var(--fg-on-brand); border-bottom-right-radius: var(--radius-xs); }
.bai-msg-assistant .bai-msg-bubble { background: var(--bg-sunken); color: var(--fg-1); border-bottom-left-radius: var(--radius-xs); }
.bai-msg-assistant.bai-msg-error .bai-msg-bubble { background: var(--color-danger-soft); color: var(--fg-1); border: 1px solid var(--color-danger); }
.bai-msg-system .bai-msg-bubble { background: transparent; color: var(--fg-3); font-size: var(--fs-xs); text-align: center; padding: 4px 8px; }

/* ---------- Kart referans şeridi (epic #1809: cevapta kart linki + görseli) ---------- */
.bai-cards {
  display: flex; gap: var(--space-2); overflow-x: auto; margin-top: var(--space-2);
  max-width: 100%; padding-bottom: 2px;
}
.bai-card-chip {
  flex-shrink: 0; width: 96px;
  display: flex; flex-direction: column; gap: 4px;
  text-decoration: none; color: var(--fg-1);
  border: 1px solid var(--border-1); border-radius: var(--radius-md);
  padding: 6px; background: var(--bg-canvas);
  transition: border-color var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}
.bai-card-chip:hover { border-color: var(--color-brand); box-shadow: var(--shadow-sm); }
.bai-card-chip img {
  width: 100%; aspect-ratio: 5 / 7; object-fit: cover;
  border-radius: var(--radius-sm); background: var(--bg-sunken);
}
.bai-card-chip-name {
  font-family: var(--font-sans); font-size: 11px; font-weight: 700;
  line-height: 1.25; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.bai-card-chip-local {
  font-family: var(--font-sans); font-size: 10px; color: var(--fg-3);
}

/* ---------- Satın alma seçeneği link kartları (issue #1844: goUrl tıklanabilir olmalı) ---------- */
.bai-buy-options {
  display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-2);
  max-width: 100%;
}
.bai-buy-option {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 8px;
  text-decoration: none; color: var(--fg-1);
  border: 1px solid var(--border-1); border-radius: var(--radius-md);
  padding: 8px 10px; background: var(--bg-canvas);
  min-height: 44px; box-sizing: border-box;
  font-family: var(--font-sans); font-size: var(--fs-xs);
  transition: border-color var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}
.bai-buy-option:hover { border-color: var(--color-brand); box-shadow: var(--shadow-sm); }
/* Kaynak ayrımı GÖRSEL olarak korunur — kullanıcı kendi ilanımızı dış siteden alınacak sanmasın. */
.bai-buy-option-source {
  flex-basis: 100%;
  font-weight: 700; font-size: 10px; text-transform: uppercase; letter-spacing: 0.02em;
}
.bai-buy-option-external .bai-buy-option-source { color: var(--color-info); }
.bai-buy-option-own .bai-buy-option-source { color: var(--color-success); }
.bai-buy-option-store { font-weight: 600; }
.bai-buy-option-price { color: var(--fg-2); }
.bai-buy-option-stale {
  flex-basis: 100%; color: var(--color-warning); font-size: 10px;
}

/* ---------- Typing indicator ---------- */
.bai-typing {
  display: flex; align-items: center; gap: var(--space-2);
  align-self: flex-start; padding: 6px 4px; color: var(--fg-3);
  font-family: var(--font-sans); font-size: var(--fs-xs);
}
.bai-typing-dots { display: inline-flex; gap: 3px; }
.bai-typing-dots span {
  width: 6px; height: 6px; border-radius: 50%; background: var(--fg-4);
  animation: bai-typing-bounce 1.2s ease-in-out infinite;
}
.bai-typing-dots span:nth-child(2) { animation-delay: 0.15s; }
.bai-typing-dots span:nth-child(3) { animation-delay: 0.3s; }
@keyframes bai-typing-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
  30% { transform: translateY(-4px); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .bai-typing-dots span { animation: none; }
}

/* ---------- Kota dolduğunda banner (AC: ne olduğu + Pro'nun ne vereceği + tek tıkla yükseltme) ---------- */
.bai-quota-banner {
  flex-shrink: 0; margin: 0 var(--space-5); padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md); background: var(--color-warning-soft);
  border: 1px solid var(--color-warning);
  display: flex; flex-direction: column; gap: var(--space-2);
}
.bai-quota-banner-text { margin: 0; font-family: var(--font-sans); font-size: var(--fs-sm); color: var(--fg-1); }
.bai-quota-banner-cta {
  align-self: flex-start;
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 0 var(--space-4);
  background: var(--color-brand); color: var(--fg-on-brand); text-decoration: none;
  font-family: var(--font-sans); font-weight: 700; font-size: var(--fs-sm);
  border-radius: var(--radius-md);
  transition: background var(--motion-fast) var(--ease-standard);
}
.bai-quota-banner-cta:hover { background: var(--color-brand-hover); color: var(--fg-on-brand); }

/* ---------- Footer / input ---------- */
.bai-panel-footer {
  flex-shrink: 0; border-top: 1px solid var(--border-1);
  padding: var(--space-3) var(--space-5) var(--space-4);
}
.bai-image-preview {
  position: relative; display: inline-block; margin-bottom: var(--space-2);
}
.bai-image-preview img {
  width: 64px; height: 64px; object-fit: cover; border-radius: var(--radius-md);
  border: 1px solid var(--border-1);
}
.bai-image-remove {
  position: absolute; top: -8px; right: -8px;
  width: 22px; height: 22px; border-radius: 50%;
  border: 0; background: var(--bg-canvas); color: var(--color-danger);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; box-shadow: var(--shadow-sm); padding: 0;
}
.bai-image-hint {
  margin: 0 0 var(--space-2); font-family: var(--font-sans); font-size: var(--fs-xs);
  color: var(--fg-3); background: var(--bg-sunken); border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-3);
}
.bai-input-row {
  display: flex; align-items: flex-end; gap: var(--space-2);
}
.bai-icon-btn {
  flex-shrink: 0; width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-1); background: var(--bg-canvas); border-radius: var(--radius-md);
  color: var(--fg-2); cursor: pointer;
  transition: border-color var(--motion-fast) var(--ease-standard), color var(--motion-fast) var(--ease-standard);
}
.bai-icon-btn:hover { border-color: var(--color-brand); color: var(--color-brand); }
.bai-textarea {
  flex: 1 1 auto; min-height: 44px; max-height: 140px; resize: none;
  font-family: var(--font-sans); font-size: var(--fs-sm); color: var(--fg-1);
  background: var(--bg-canvas); border: 1px solid var(--border-2); border-radius: var(--radius-md);
  padding: 11px 12px; line-height: var(--lh-snug);
}
.bai-textarea:focus { outline: none; border-color: var(--color-brand); box-shadow: var(--focus-ring); }
.bai-textarea::placeholder { color: var(--fg-4); }
.bai-send-btn {
  flex-shrink: 0; width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; background: var(--color-brand); color: var(--fg-on-brand); border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--motion-fast) var(--ease-standard), opacity var(--motion-fast) var(--ease-standard);
}
.bai-send-btn:hover { background: var(--color-brand-hover); }
.bai-send-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Mobil: tam ekran (AC: mobil viewport'ta tam ekran davranışı) ---------- */
@media (max-width: 768px) {
  .bai-panel {
    width: 100vw;
    border-left: 0;
  }
}

/* Küçük telefonlarda header/footer sıkışmasın (375px doğrulaması) */
@media (max-width: 375px) {
  .bai-panel-header { padding: var(--space-3) var(--space-4); }
  .bai-panel-body { padding: var(--space-3) var(--space-4); }
  .bai-panel-footer { padding: var(--space-2) var(--space-4) var(--space-3); }
  .bai-msg { max-width: 94%; }
}