/* ============================================
   সালেহা — Strict White · Black · Blue UI
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600&family=Inter:wght@400;500&display=swap');

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

:root {
  --blue:      #1a73e8;
  --blue-dim:  #e8f0fe;
  --blue-dark: #1557b0;
  --black:     #111111;
  --gray-dk:   #3c3c3c;
  --gray:      #6e6e6e;
  --gray-lt:   #d8d8d8;
  --bg:        #f5f5f5;
  --white:     #ffffff;
  --r:         10px;
  --t:         .18s ease;
}

html { scroll-behavior: smooth; }
body {
  font-family: 'Hind Siliguri', 'Inter', sans-serif;
  background: var(--bg);
  color: var(--black);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── HEADER ─────────────────────────────── */
.header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-lt);
  height: 56px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 200;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Pulsing dot — blue blink */
.pulsing-dot {
  width: 14px;
  height: 14px;
  background: var(--blue);
  border-radius: 50%;
  animation: blink 1.6s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.header-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--black);
  letter-spacing: -.2px;
}

.btn-call-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--black);
  color: var(--white);
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--t);
  font-family: 'Inter', sans-serif;
}
.btn-call-header:hover { background: var(--blue); }
.btn-call-header svg   { stroke: var(--white); }

/* ── CHAT WRAPPER ────────────────────────── */
.chat-wrapper {
  max-width: 700px;
  margin: 0 auto;
  padding: 20px 16px 130px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ── WELCOME CARD ────────────────────────── */
.welcome-card {
  background: var(--white);
  border: 1px solid var(--gray-lt);
  border-radius: var(--r);
  padding: 22px 20px;
  text-align: center;
}

.welcome-icon-wrap {
  width: 44px;
  height: 44px;
  background: var(--blue-dim);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}
.welcome-icon-wrap svg { stroke: var(--blue); }

.center-name {
  font-size: .95rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 4px;
}

.center-sub {
  font-size: .82rem;
  color: var(--gray);
}

/* ── QUICK CHIPS ─────────────────────────── */
.quick-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.chip {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--white);
  border: 1px solid var(--gray-lt);
  border-radius: 20px;
  padding: 6px 13px;
  font-size: .82rem;
  font-family: 'Hind Siliguri', sans-serif;
  color: var(--gray-dk);
  cursor: pointer;
  transition: var(--t);
  white-space: nowrap;
}
.chip svg    { stroke: var(--gray); flex-shrink: 0; }
.chip:hover  { background: var(--blue-dim); border-color: var(--blue); color: var(--blue); }
.chip:hover svg { stroke: var(--blue); }

/* ── MESSAGES ────────────────────────────── */
.messages { display: flex; flex-direction: column; gap: 10px; }

.message {
  display: flex;
  gap: 9px;
  animation: msgIn .25s ease both;
}
.message.user { flex-direction: row-reverse; }

@keyframes msgIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.msg-av {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.message.bot  .msg-av { background: var(--blue); }
.message.bot  .msg-av svg { stroke: var(--white); }
.message.user .msg-av { background: var(--gray-lt); }
.message.user .msg-av svg { stroke: var(--gray-dk); }

.msg-bubble {
  max-width: 78%;
  padding: 10px 14px;
  border-radius: var(--r);
  font-size: .9rem;
  line-height: 1.65;
  word-break: break-word;
}

.message.bot .msg-bubble {
  background: var(--white);
  border: 1px solid var(--gray-lt);
  color: var(--black);
  border-radius: 3px var(--r) var(--r) var(--r);
}

.message.user .msg-bubble {
  background: var(--blue);
  color: var(--white);
  border-radius: var(--r) 3px var(--r) var(--r);
}

.msg-bubble strong { font-weight: 600; }
.msg-bubble ul     { padding-left: 16px; margin-top: 4px; }
.msg-bubble li     { margin-bottom: 3px; }

/* ── TYPING ──────────────────────────────── */
.typing-indicator { display: flex; gap: 5px; align-items: center; padding: 10px 14px; }
.typing-dot {
  width: 7px; height: 7px;
  background: var(--gray);
  border-radius: 50%;
  animation: bounce 1.2s infinite ease-in-out;
}
.typing-dot:nth-child(2) { animation-delay: .18s; }
.typing-dot:nth-child(3) { animation-delay: .36s; }
@keyframes bounce {
  0%,60%,100% { transform: translateY(0); opacity:.4; }
  30%          { transform: translateY(-6px); opacity:1; }
}

/* ── INPUT BAR ───────────────────────────── */
.input-bar-wrapper {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, var(--bg) 75%, transparent);
  padding: 10px 16px 20px;
  z-index: 100;
}

.input-bar {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  background: var(--white);
  border: 1.5px solid var(--gray-lt);
  border-radius: 24px;
  padding: 7px 7px 7px 16px;
  box-shadow: 0 2px 12px rgba(0,0,0,.1);
  transition: border-color var(--t);
}
.input-bar:focus-within { border-color: var(--blue); }

#chatInput {
  flex: 1;
  border: none;
  outline: none;
  font-family: 'Hind Siliguri', sans-serif;
  font-size: .92rem;
  color: var(--black);
  background: transparent;
  resize: none;
  max-height: 110px;
  min-height: 22px;
  line-height: 1.5;
  padding: 3px 0;
}
#chatInput::placeholder { color: var(--gray); }

.btn-send {
  width: 38px; height: 38px;
  background: var(--blue);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--t);
  color: var(--white);
}
.btn-send:hover   { background: var(--blue-dark); }
.btn-send:active  { transform: scale(.93); }
.btn-send:disabled { background: var(--gray-lt); cursor: not-allowed; }
.btn-send svg { fill: var(--white); }

/* ── FABs ────────────────────────────────── */
.fab-call {
  position: fixed;
  bottom: 88px;
  right: 18px;
  height: 50px;
  padding: 0 16px 0 14px;
  background: var(--black);
  color: var(--white);
  border-radius: 25px;
  display: flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  font-size: .78rem;
  font-weight: 500;
  font-family: 'Inter', sans-serif;
  z-index: 150;
  box-shadow: 0 3px 14px rgba(0,0,0,.25);
  animation: callPulse 2.8s infinite;
  transition: transform var(--t);
}
.fab-call svg   { stroke: var(--white); flex-shrink: 0; }
.fab-call:hover { transform: scale(1.04); animation: none; background: var(--blue); }

@keyframes callPulse {
  0%,100% { box-shadow: 0 3px 14px rgba(0,0,0,.25); }
  50%      { box-shadow: 0 3px 22px rgba(26,115,232,.5), 0 0 0 6px rgba(26,115,232,.1); }
}

.fab-download {
  position: fixed;
  bottom: 150px;
  right: 18px;
  width: 44px; height: 44px;
  background: var(--white);
  border: 1.5px solid var(--gray-lt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 150;
  box-shadow: 0 2px 10px rgba(0,0,0,.12);
  transition: var(--t);
  color: var(--black);
}
.fab-download svg   { stroke: var(--black); }
.fab-download:hover { background: var(--blue-dim); border-color: var(--blue); }
.fab-download:hover svg { stroke: var(--blue); }

/* fab-label hidden on download since it's icon only */
.fab-label { display: none; }
.fab-call .fab-label { display: block; }

/* ── ADMIN LOGIN ─────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 20px;
}

.login-card {
  background: var(--white);
  border: 1px solid var(--gray-lt);
  border-radius: var(--r);
  padding: 36px 32px;
  width: 100%;
  max-width: 380px;
  text-align: center;
}

.login-logo {
  width: 48px; height: 48px;
  background: var(--blue);
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-logo svg { stroke: var(--white); }

.login-card h2 { font-size: 1.15rem; color: var(--black); margin-bottom: 4px; }
.login-card .sub { font-size: .83rem; color: var(--gray); margin-bottom: 26px; }

/* ── FORM ELEMENTS ───────────────────────── */
.form-group { text-align: left; margin-bottom: 14px; }

.form-group label {
  display: block;
  font-size: .8rem;
  font-weight: 500;
  color: var(--gray-dk);
  margin-bottom: 5px;
  font-family: 'Inter', sans-serif;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--gray-lt);
  border-radius: 8px;
  font-family: 'Hind Siliguri', sans-serif;
  font-size: .9rem;
  color: var(--black);
  outline: none;
  background: var(--white);
  transition: border-color var(--t);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--blue); }
.form-group textarea { resize: vertical; min-height: 65px; }

.btn-primary {
  width: 100%;
  padding: 10px;
  background: var(--blue);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-family: 'Hind Siliguri', sans-serif;
  font-size: .95rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--t);
}
.btn-primary:hover { background: var(--blue-dark); }

.alert {
  padding: 9px 12px;
  border-radius: 7px;
  font-size: .84rem;
  margin-bottom: 14px;
  text-align: left;
}
.alert-error   { background: #fff0f0; color: #b00020; border: 1px solid #f5c6cb; }
.alert-success { background: #f0f7f0; color: #1a5e1a; border: 1px solid #b6d9b6; }

/* ── ADMIN LAYOUT ────────────────────────── */
.admin-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  min-height: calc(100vh - 56px);
}

.sidebar {
  background: var(--white);
  border-right: 1px solid var(--gray-lt);
  padding: 16px 0;
}

.sidebar-menu { list-style: none; }
.sidebar-menu li a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 18px;
  font-size: .87rem;
  color: var(--gray-dk);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: var(--t);
}
.sidebar-menu li a svg { stroke: var(--gray); flex-shrink: 0; }
.sidebar-menu li a:hover,
.sidebar-menu li a.active {
  background: var(--blue-dim);
  color: var(--blue);
  border-left-color: var(--blue);
}
.sidebar-menu li a:hover svg,
.sidebar-menu li a.active svg { stroke: var(--blue); }

.admin-content { padding: 24px; }

.admin-content h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--gray-lt);
  display: flex;
  align-items: center;
  gap: 8px;
}
.admin-content h2 svg { stroke: var(--black); }

/* Stats */
.stats-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 22px;
  flex-wrap: wrap;
  align-items: center;
}

.stat-box {
  background: var(--white);
  border: 1px solid var(--gray-lt);
  border-radius: var(--r);
  padding: 14px 18px;
  flex: 1;
  min-width: 100px;
}
.stat-box .num {
  font-size: 1.7rem;
  font-weight: 600;
  color: var(--blue);
  font-family: 'Inter', sans-serif;
  line-height: 1;
  margin-bottom: 3px;
}
.stat-box .lbl { font-size: .78rem; color: var(--gray); }

/* Cards grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.data-card {
  background: var(--white);
  border: 1px solid var(--gray-lt);
  border-radius: var(--r);
  padding: 16px;
}

.data-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}

.data-card h3 { font-size: .93rem; color: var(--black); }
.data-card p  { font-size: .82rem; color: var(--gray); line-height: 1.65; }

.tag {
  font-size: .72rem;
  padding: 2px 8px;
  border-radius: 10px;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  background: var(--blue-dim);
  color: var(--blue);
}

.btn-del {
  width: 28px; height: 28px;
  border: 1px solid var(--gray-lt);
  background: var(--white);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--t);
  flex-shrink: 0;
}
.btn-del svg { stroke: var(--gray); }
.btn-del:hover { border-color: var(--black); }
.btn-del:hover svg { stroke: var(--black); }

/* Add form */
.add-card {
  background: var(--white);
  border: 1px solid var(--gray-lt);
  border-radius: var(--r);
  padding: 20px;
}

.add-card h3 {
  font-size: .93rem;
  color: var(--black);
  margin-bottom: 16px;
  font-weight: 600;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.btn-sm {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: var(--blue);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-family: 'Hind Siliguri', sans-serif;
  font-size: .88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--t);
  margin-top: 10px;
}
.btn-sm:hover { background: var(--blue-dark); }
.btn-sm svg { stroke: var(--white); }

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--white);
  color: var(--black);
  border: 1.5px solid var(--gray-lt);
  border-radius: 8px;
  font-size: .82rem;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: var(--t);
}
.btn-download svg { stroke: var(--black); }
.btn-download:hover { border-color: var(--blue); color: var(--blue); }
.btn-download:hover svg { stroke: var(--blue); }

/* Admin FAB download */
.fab-dl-admin {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px; height: 44px;
  background: var(--white);
  border: 1.5px solid var(--gray-lt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 150;
  box-shadow: 0 2px 10px rgba(0,0,0,.1);
  text-decoration: none;
  color: var(--black);
  transition: var(--t);
}
.fab-dl-admin svg { stroke: var(--black); }
.fab-dl-admin:hover { background: var(--blue-dim); border-color: var(--blue); }
.fab-dl-admin:hover svg { stroke: var(--blue); }

/* ── RESPONSIVE ──────────────────────────── */
@media (max-width: 600px) {
  .admin-layout { grid-template-columns: 1fr; }
  .sidebar      { display: none; }
  .form-row     { grid-template-columns: 1fr; }
  .fab-call     { bottom: 82px; right: 12px; padding: 0 12px 0 10px; font-size: .74rem; }
  .fab-download { bottom: 144px; right: 12px; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--gray-lt); border-radius: 3px; }