*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:       #7c3aed;
  --primary-dark:  #6d28d9;
  --primary-light: #ede9fe;
  --accent:        #f59e0b;
  --bg:            #f0ebff;
  --white:         #ffffff;
  --text:          #1f2937;
  --text-muted:    #6b7280;
  --border:        #e5e7eb;
  --shadow-sm:     0 2px 8px rgba(0,0,0,.08);
  --shadow-md:     0 4px 16px rgba(0,0,0,.12);
  --radius:        20px;
}

html, body {
  height: 100%;
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* ── App shell ───────────────────────────────────────────────────────────── */

.app {
  display: flex;
  flex-direction: column;
  height: 100dvh;          /* dynamic viewport height (works on mobile) */
  max-width: 520px;
  margin: 0 auto;
  background: var(--bg);
  box-shadow: var(--shadow-md);
}

/* ── Header ──────────────────────────────────────────────────────────────── */

.header {
  background: var(--primary);
  padding: 14px 18px;
  flex-shrink: 0;
  z-index: 10;
}

.header-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.bot-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.bot-info { flex: 1; }
.bot-info h1 { font-size: 17px; font-weight: 700; color: #fff; }
.status { font-size: 12px; color: #86efac; font-weight: 500; }
.status.offline { color: #fca5a5; }

.admin-link {
  color: rgba(255,255,255,.7);
  font-size: 18px;
  text-decoration: none;
  padding: 4px;
  transition: color .2s;
}
.admin-link:hover { color: #fff; }

/* ── Messages area ───────────────────────────────────────────────────────── */

.chat-container {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  scroll-behavior: smooth;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ── Message bubbles ─────────────────────────────────────────────────────── */

.message {
  display: flex;
  flex-direction: column;
  max-width: 82%;
  animation: fadeSlideIn .25s ease both;
}

.message.user { align-self: flex-end; }
.message.bot  { align-self: flex-start; }

.bubble {
  padding: 11px 15px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.55;
  box-shadow: var(--shadow-sm);
  word-break: break-word;
}

.message.user .bubble {
  background: var(--primary);
  color: #fff;
  border-bottom-right-radius: 5px;
}

.message.bot .bubble {
  background: var(--white);
  color: var(--text);
  border-bottom-left-radius: 5px;
}

.message-time {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
  padding: 0 4px;
}
.message.user .message-time { text-align: right; }

/* ── Typing indicator ────────────────────────────────────────────────────── */

.typing-indicator {
  display: flex;
  gap: 5px;
  padding: 12px 15px;
  background: var(--white);
  border-radius: var(--radius);
  border-bottom-left-radius: 5px;
  width: fit-content;
  box-shadow: var(--shadow-sm);
}

.dot {
  width: 7px;
  height: 7px;
  background: var(--primary);
  border-radius: 50%;
  animation: bounce 1.3s infinite ease-in-out;
}
.dot:nth-child(2) { animation-delay: .18s; }
.dot:nth-child(3) { animation-delay: .36s; }

/* ── Quick-reply buttons ─────────────────────────────────────────────────── */

.quick-buttons {
  padding: 6px 14px 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  flex-shrink: 0;
  min-height: 10px;
}

.quick-btn {
  background: var(--white);
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: 24px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background .18s, color .18s, transform .1s;
  font-family: inherit;
}
.quick-btn:hover  { background: var(--primary); color: #fff; }
.quick-btn:active { transform: scale(.97); }

/* ── Input area ──────────────────────────────────────────────────────────── */

.input-area {
  display: flex;
  gap: 9px;
  align-items: center;
  padding: 10px 14px;
  background: var(--white);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.input-area input {
  flex: 1;
  border: 2px solid var(--border);
  border-radius: 24px;
  padding: 9px 16px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color .2s;
  background: #fafafa;
}
.input-area input:focus { border-color: var(--primary); background: #fff; }

.send-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background .2s, transform .1s;
}
.send-btn:hover  { background: var(--primary-dark); }
.send-btn:active { transform: scale(.94); }

/* ── Provider card (inside bubble) ──────────────────────────────────────── */

.provider-card {
  background: #fafafa;
  border-radius: 10px;
  border-left: 4px solid var(--accent);
  padding: 10px 12px;
  margin-top: 8px;
  font-size: 13px;
}
.provider-card strong { color: var(--primary); font-size: 14px; }
.provider-card .detail { color: var(--text-muted); margin-top: 2px; }

/* Provider image grid */
.img-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 5px;
  margin-top: 8px;
}
.img-grid img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  border-radius: 7px;
  cursor: pointer;
  transition: opacity .15s;
}
.img-grid img:hover { opacity: .85; }

/* ── Animations ──────────────────────────────────────────────────────────── */

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%            { transform: translateY(-6px); }
}

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
.chat-container::-webkit-scrollbar       { width: 4px; }
.chat-container::-webkit-scrollbar-track { background: transparent; }
.chat-container::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 4px; }

/* ── Admin page ──────────────────────────────────────────────────────────── */

.admin-page {
  padding: 24px;
  max-width: 900px;
  margin: 0 auto;
}
.admin-page h2 {
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 16px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--white);
  border-radius: 12px;
  padding: 16px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}
.stat-card .value {
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
}
.stat-card .label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}
.progress-bar-wrap {
  background: #e5e7eb;
  border-radius: 99px;
  height: 10px;
  margin: 4px 0;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  border-radius: 99px;
  background: var(--primary);
  transition: width .5s;
}
.progress-bar.warning { background: var(--accent); }
.progress-bar.danger  { background: #ef4444; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}
th, td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: var(--primary-light); color: var(--primary); font-weight: 600; }
tr:last-child td { border-bottom: none; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  background: var(--white);
  padding: 18px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}
.form-grid label { font-size: 12px; color: var(--text-muted); display: block; margin-bottom: 4px; }
.form-grid input, .form-grid select, .form-grid textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color .2s;
}
.form-grid input:focus, .form-grid select:focus { border-color: var(--primary); }
.btn {
  padding: 9px 20px;
  border-radius: 8px;
  border: none;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background .2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger  { background: #ef4444; color: #fff; }
.tab-nav { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.tab-btn {
  padding: 8px 18px;
  border-radius: 20px;
  border: 2px solid var(--primary);
  background: transparent;
  color: var(--primary);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s;
}
.tab-btn.active { background: var(--primary); color: #fff; }
.section { display: none; }
.section.active { display: block; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
}
.badge-green  { background: #d1fae5; color: #065f46; }
.badge-yellow { background: #fef3c7; color: #92400e; }
.badge-red    { background: #fee2e2; color: #991b1b; }

@media (max-width: 600px) {
  .admin-page { padding: 14px; }
}