/* =============================================================================
   Portfolio Chat Widget Styles
   Customize the CSS variables in :root to match your portfolio's color scheme.
   ============================================================================= */

:root {
  --cw-primary:        #6366f1;   /* bubble + send button background */
  --cw-primary-dark:   #4f46e5;   /* hover state */
  --cw-bg:             #ffffff;   /* panel background */
  --cw-header-bg:      #6366f1;   /* panel header */
  --cw-header-text:    #ffffff;
  --cw-user-bg:        #6366f1;   /* user message bubble */
  --cw-user-text:      #ffffff;
  --cw-bot-bg:         #f3f4f6;   /* assistant message bubble */
  --cw-bot-text:       #111827;
  --cw-input-bg:       #f9fafb;
  --cw-border:         #e5e7eb;
  --cw-shadow:         0 8px 32px rgba(0,0,0,0.15);
  --cw-radius:         16px;
  --cw-radius-sm:      8px;
  --cw-font:           -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --cw-z:              9999;
}

/* ── Reset scoped to widget ─────────────────────────────────────────────────── */
#cw-root *, #cw-root *::before, #cw-root *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Floating bubble button ─────────────────────────────────────────────────── */
#cw-bubble {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--cw-z);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--cw-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--cw-shadow);
  transition: background 0.2s, transform 0.15s;
}

#cw-bubble:hover {
  background: var(--cw-primary-dark);
  transform: scale(1.05);
}

#cw-bubble:active {
  transform: scale(0.97);
}

/* ── Chat panel ─────────────────────────────────────────────────────────────── */
#cw-panel {
  position: fixed;
  bottom: 90px;
  right: 24px;
  z-index: var(--cw-z);
  width: 360px;
  max-width: calc(100vw - 32px);
  height: 520px;
  max-height: calc(100vh - 120px);
  background: var(--cw-bg);
  border-radius: var(--cw-radius);
  box-shadow: var(--cw-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-family: var(--cw-font);
  font-size: 14px;
  /* Hidden by default — toggled via .cw-open */
  opacity: 0;
  transform: translateY(12px) scale(0.97);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

#cw-panel.cw-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */
#cw-header {
  background: var(--cw-header-bg);
  color: var(--cw-header-text);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

#cw-header-title {
  font-weight: 600;
  font-size: 15px;
}

#cw-close-btn {
  background: none;
  border: none;
  color: var(--cw-header-text);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 2px 4px;
  border-radius: 4px;
  opacity: 0.8;
  transition: opacity 0.15s;
}

#cw-close-btn:hover {
  opacity: 1;
}

/* ── Message list ───────────────────────────────────────────────────────────── */
#cw-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

/* Scrollbar styling */
#cw-messages::-webkit-scrollbar { width: 4px; }
#cw-messages::-webkit-scrollbar-track { background: transparent; }
#cw-messages::-webkit-scrollbar-thumb { background: var(--cw-border); border-radius: 4px; }

/* ── Individual message rows ────────────────────────────────────────────────── */
.cw-msg {
  display: flex;
  max-width: 80%;
}

.cw-msg-user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.cw-msg-assistant {
  align-self: flex-start;
}

#cw-root .cw-bubble {
  padding: 16px 20px;
  border-radius: var(--cw-radius);
  line-height: 1.65;
  word-break: break-word;
  white-space: pre-wrap;
}

.cw-msg-user .cw-bubble {
  background: var(--cw-user-bg);
  color: var(--cw-user-text);
  border-bottom-right-radius: var(--cw-radius-sm);
}

.cw-msg-assistant .cw-bubble {
  background: var(--cw-bot-bg);
  color: var(--cw-bot-text);
  border-bottom-left-radius: var(--cw-radius-sm);
}

/* ── Typing indicator ───────────────────────────────────────────────────────── */
.cw-typing-indicator {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 12px 16px;
  min-width: 52px;
}

.cw-typing-indicator span {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #9ca3af;
  animation: cw-bounce 1.2s infinite;
}

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

@keyframes cw-bounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%           { transform: translateY(-5px); }
}

/* ── Input row ──────────────────────────────────────────────────────────────── */
#cw-input-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--cw-border);
  background: var(--cw-bg);
  flex-shrink: 0;
}

#cw-input {
  flex: 1;
  resize: none;
  border: 1px solid var(--cw-border);
  border-radius: var(--cw-radius-sm);
  padding: 8px 12px;
  font-family: var(--cw-font);
  font-size: 14px;
  line-height: 1.5;
  background: var(--cw-input-bg);
  color: var(--cw-bot-text);
  outline: none;
  transition: border-color 0.15s;
  max-height: 120px;
  overflow-y: auto;
}

#cw-input:focus {
  border-color: var(--cw-primary);
}

#cw-input::placeholder {
  color: #9ca3af;
}

#cw-send {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--cw-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, transform 0.1s;
}

#cw-send:hover {
  background: var(--cw-primary-dark);
}

#cw-send:active {
  transform: scale(0.92);
}

#cw-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ── Mobile ─────────────────────────────────────────────────────────────────── */
@media (max-width: 420px) {
  #cw-panel {
    right: 8px;
    bottom: 80px;
    width: calc(100vw - 16px);
  }

  #cw-bubble {
    right: 16px;
    bottom: 16px;
  }
}