/* ============================================================
   HepuTeam AI Chatbot — Frontend Widget CSS
   ============================================================ */

:root {
  --hepu-primary:      #1a237e;
  --hepu-primary-dark: #0d1257;
  --hepu-accent:       #ffd600;
  --hepu-white:        #ffffff;
  --hepu-bg:           #f8f9fa;
  --hepu-border:       #e0e0e0;
  --hepu-text:         #212121;
  --hepu-text-light:   #757575;
  --hepu-bot-bubble:   #e8eaf6;
  --hepu-user-bubble:  #1a237e;
  --hepu-shadow:       0 8px 32px rgba(26,35,126,0.18);
  --hepu-radius:       16px;
  --hepu-transition:   .25s cubic-bezier(.4,0,.2,1);
  --hepu-z:            99999;
  --hepu-w:            380px;
  --hepu-h:            540px;
}

/* ── Trigger bubble ─────────────────────────────────────── */
.hepu-chat-trigger {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: var(--hepu-z);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--hepu-primary);
  color: var(--hepu-white);
  border: none;
  cursor: pointer;
  box-shadow: var(--hepu-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--hepu-transition), box-shadow var(--hepu-transition);
  outline: none;
}
.hepu-chat-trigger:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 40px rgba(26,35,126,0.3);
}
.hepu-chat-trigger svg { width: 28px; height: 28px; }

.hepu-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  background: #f44336;
  color: #fff;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #fff;
}

/* ── Panel ──────────────────────────────────────────────── */
.hepu-chat-panel {
  position: fixed;
  bottom: 0px;
  right: 28px;
  z-index: var(--hepu-z);
  width: var(--hepu-w);
  height: var(--hepu-h);
  background: var(--hepu-white);
  border-radius: var(--hepu-radius);
  box-shadow: var(--hepu-shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0) translateY(20px);
  transform-origin: bottom right;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--hepu-transition), opacity var(--hepu-transition);
}
.hepu-chat-panel.hepu-open {
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: all;
}

/* ── Header ─────────────────────────────────────────────── */
.hepu-chat-header {
  background: var(--hepu-primary);
  color: var(--hepu-white);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.hepu-chat-header-info {
  display: flex;
  align-items: center;
  gap: 10px;
}
.hepu-avatar {
  width: 38px;
  height: 38px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.hepu-chat-title   { font-weight: 700; font-size: 15px; }
.hepu-chat-subtitle { font-size: 11px; opacity: .8; }

.hepu-header-actions { display: flex; gap: 6px; align-items: center; }
.hepu-icon-btn {
  background: rgba(255,255,255,0.12);
  border: none;
  color: #fff;
  border-radius: 8px;
  padding: 5px 8px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  transition: background var(--hepu-transition);
}
.hepu-icon-btn:hover { background: rgba(255,255,255,0.22); }

/* ── Tabs ───────────────────────────────────────────────── */
.hepu-tabs {
  display: flex;
  border-bottom: 1px solid var(--hepu-border);
  background: var(--hepu-bg);
  flex-shrink: 0;
}
.hepu-tab {
  flex: 1;
  padding: 10px 8px;
  font-size: 13px;
  font-weight: 500;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  color: var(--hepu-text-light);
  transition: color var(--hepu-transition), border-color var(--hepu-transition);
}
.hepu-tab.active {
  color: var(--hepu-primary);
  border-bottom-color: var(--hepu-primary);
  font-weight: 700;
}

/* ── Tab content ────────────────────────────────────────── */
.hepu-tab-content { display: none; flex-direction: column; flex: 1; overflow: hidden; }
.hepu-tab-content.active { display: flex; }

/* ── Messages ───────────────────────────────────────────── */
.hepu-messages {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-behavior: smooth;
}
.hepu-messages::-webkit-scrollbar { width: 4px; }
.hepu-messages::-webkit-scrollbar-thumb { background: var(--hepu-border); border-radius: 4px; }

.hepu-msg {
  display: flex;
  gap: 8px;
  max-width: 90%;
  animation: hepu-fadein .2s ease;
}
@keyframes hepu-fadein { from { opacity:0; transform:translateY(6px); } to { opacity:1; transform:none; } }

.hepu-msg-bot  { align-self: flex-start; }
.hepu-msg-user { align-self: flex-end; flex-direction: row-reverse; }

.hepu-msg-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--hepu-primary);
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.hepu-msg-bubble {
  padding: 10px 13px;
  border-radius: 14px;
  font-size: 13.5px;
  line-height: 1.5;
}
.hepu-msg-bot  .hepu-msg-bubble { background: var(--hepu-bot-bubble); color: var(--hepu-text); border-bottom-left-radius: 4px; }
.hepu-msg-user .hepu-msg-bubble { background: var(--hepu-user-bubble); color: #fff; border-bottom-right-radius: 4px; }

/* Typing indicator */
.hepu-typing .hepu-msg-bubble {
  padding: 12px 16px;
}
.hepu-dots {
  display: flex;
  gap: 4px;
  align-items: center;
  height: 16px;
}
.hepu-dots span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--hepu-text-light);
  animation: hepu-dot 1.2s infinite;
}
.hepu-dots span:nth-child(2) { animation-delay: .2s; }
.hepu-dots span:nth-child(3) { animation-delay: .4s; }
@keyframes hepu-dot {
  0%,80%,100% { transform: scale(.6); opacity:.4; }
  40%         { transform: scale(1);  opacity:1;  }
}

/* ── Quick buttons ──────────────────────────────────────── */
.hepu-quick-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 14px;
  border-top: 1px solid var(--hepu-border);
  flex-shrink: 0;
}
.hepu-quick-btn {
  font-size: 12px;
  padding: 5px 11px;
  border: 1px solid var(--hepu-primary);
  color: var(--hepu-primary);
  background: transparent;
  border-radius: 20px;
  cursor: pointer;
  transition: background var(--hepu-transition), color var(--hepu-transition);
  white-space: nowrap;
}
.hepu-quick-btn:hover { background: var(--hepu-primary); color: #fff; }

/* ── Input area ─────────────────────────────────────────── */
.hepu-input-area {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--hepu-border);
  flex-shrink: 0;
}
.hepu-textarea {
  flex: 1;
  border: 1px solid var(--hepu-border);
  border-radius: 12px;
  padding: 9px 13px;
  font-size: 13.5px;
  resize: none;
  outline: none;
  font-family: inherit;
  max-height: 100px;
  overflow-y: auto;
  line-height: 1.45;
  transition: border-color var(--hepu-transition);
}
.hepu-textarea:focus { border-color: var(--hepu-primary); }

.hepu-send-btn {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--hepu-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--hepu-transition), transform var(--hepu-transition);
}
.hepu-send-btn:hover  { background: var(--hepu-primary-dark); }
.hepu-send-btn:active { transform: scale(.93); }
.hepu-send-btn:disabled { opacity: .45; cursor: default; }

/* ── Contact tab ────────────────────────────────────────── */
.hepu-contact-intro {
  padding: 12px 16px 0;
  font-size: 13px;
  color: var(--hepu-text-light);
}
.hepu-contact-form {
  padding: 10px 16px 14px;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hepu-field label { display: block; font-size: 12px; font-weight: 600; color: var(--hepu-text-light); margin-bottom: 3px; }
.hepu-field input,
.hepu-field select,
.hepu-field textarea {
  width: 100%;
  border: 1px solid var(--hepu-border);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  box-sizing: border-box;
  transition: border-color var(--hepu-transition);
}
.hepu-field input:focus,
.hepu-field select:focus,
.hepu-field textarea:focus { border-color: var(--hepu-primary); }

.hepu-errors { background: #ffebee; color: #c62828; border-radius: 8px; padding: 8px 12px; font-size: 12px; }
.hepu-submit-btn {
  background: var(--hepu-primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 11px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  margin-top: 4px;
  transition: background var(--hepu-transition);
}
.hepu-submit-btn:hover { background: var(--hepu-primary-dark); }
.hepu-submit-btn:disabled { opacity: .5; cursor: default; }

.hepu-contact-success {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 20px;
  text-align: center;
  gap: 8px;
}
.hepu-success-icon { font-size: 48px; }
.hepu-contact-success h3 { margin: 0; font-size: 18px; color: var(--hepu-primary); }
.hepu-contact-success p { font-size: 13px; color: var(--hepu-text-light); margin: 0; }
.hepu-contacts-info a { display: block; color: var(--hepu-primary); text-decoration: none; margin: 3px 0; font-size: 13px; }

/* ── Footer ─────────────────────────────────────────────── */
.hepu-chat-footer {
  text-align: center;
  padding: 6px 10px;
  font-size: 10.5px;
  color: var(--hepu-text-light);
  border-top: 1px solid var(--hepu-border);
  flex-shrink: 0;
}
.hepu-chat-footer a { color: var(--hepu-primary); text-decoration: none; }

/* ── Standalone contact form ────────────────────────────── */
.hepu-standalone-form {
  max-width: 680px;
  margin: 0 auto;
  padding: 30px 20px;
}
.hepu-form-header h2 { color: var(--hepu-primary); margin-bottom: 6px; }
.hepu-form-header p  { color: var(--hepu-text-light); margin-bottom: 24px; }
.hepu-form-grid      { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hepu-form-field     { display: flex; flex-direction: column; }
.hepu-full-width     { grid-column: 1 / -1; }
.hepu-form-field label { font-weight: 600; font-size: 13px; margin-bottom: 5px; }
.hepu-input, .hepu-select, .hepu-standalone-form .hepu-textarea {
  border: 1px solid var(--hepu-border);
  border-radius: 8px;
  padding: 10px 13px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color var(--hepu-transition);
}
.hepu-input:focus, .hepu-select:focus { border-color: var(--hepu-primary); }
.hepu-form-errors   { background: #ffebee; color: #c62828; border-radius: 8px; padding: 12px 16px; margin-bottom: 16px; }
.hepu-error-item    { font-size: 13px; margin-bottom: 4px; }
.hepu-form-privacy  { margin-top: 12px; color: var(--hepu-text-light); font-size: 12px; }
.hepu-form-submit   { margin-top: 16px; }
.hepu-btn-primary {
  background: var(--hepu-primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 13px 28px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background var(--hepu-transition);
}
.hepu-btn-primary:hover { background: var(--hepu-primary-dark); }
.hepu-btn-secondary {
  background: transparent;
  color: var(--hepu-primary);
  border: 1.5px solid var(--hepu-primary);
  border-radius: 10px;
  padding: 11px 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background var(--hepu-transition), color var(--hepu-transition);
}
.hepu-btn-secondary:hover { background: var(--hepu-primary); color: #fff; }

.hepu-standalone-success { max-width: 500px; margin: 60px auto; text-align: center; }
.hepu-success-icon       { font-size: 64px; }
.hepu-standalone-success h2 { color: var(--hepu-primary); font-size: 28px; }
.hepu-contact-info-box   { background: var(--hepu-bg); border-radius: 12px; padding: 20px; margin: 20px 0; }
.hepu-contact-info-box h3 { color: var(--hepu-primary); margin-top: 0; }
.hepu-contact-info-box a  { color: var(--hepu-primary); text-decoration: none; display: block; margin: 5px 0; }
.hepu-contact-links       { display: flex; flex-direction: column; gap: 6px; }
.hepu-form-contacts       { margin-top: 40px; border-top: 1px solid var(--hepu-border); padding-top: 24px; }

/* ── Mobile ─────────────────────────────────────────────── */
@media (max-width: 480px) {
  .hepu-chat-panel { width: 100vw; height: 85vh; bottom: 0; right: 0; border-radius: 0; }
  .hepu-chat-trigger { bottom: 16px; right: 16px; }
  .hepu-form-grid { grid-template-columns: 1fr; }
}