/* ══════════════════════════════════════════════════
   RESET & BASE
══════════════════════════════════════════════════ */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-deep:      #070712;
  --bg-panel:     rgba(20, 22, 40, 0.72);
  --bg-panel-2:   rgba(30, 32, 55, 0.6);
  --border:       rgba(255, 255, 255, 0.08);
  --border-hi:    rgba(139, 92, 246, 0.35);
  --text:         #e8eaf6;
  --text-dim:     #9aa0bf;
  --text-faint:   #6b7194;
  --accent:       #8b5cf6;
  --accent-2:     #6366f1;
  --accent-glow:  rgba(139, 92, 246, 0.45);
  --success:      #10b981;
  --warning:      #f59e0b;
  --danger:       #ef4444;
  --info:         #3b82f6;
  --radius:       18px;
  --radius-sm:    12px;
  --shadow-lg:    0 20px 60px rgba(0, 0, 0, 0.55);
  --shadow-glow:  0 0 40px rgba(139, 92, 246, 0.25);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html, body {
  height: 100%;
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text);
  overflow: hidden;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* ══════════════════════════════════════════════════
   BACKGROUND GLOW
══════════════════════════════════════════════════ */
.background-glow {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.background-glow::before,
.background-glow::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.55;
  animation: float 18s ease-in-out infinite;
}
.background-glow::before {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #7c3aed 0%, transparent 70%);
  top: -200px; left: -150px;
}
.background-glow::after {
  width: 700px; height: 700px;
  background: radial-gradient(circle, #2563eb 0%, transparent 70%);
  bottom: -250px; right: -200px;
  animation-delay: -9s;
}
@keyframes float {
  0%,100% { transform: translate(0,0) scale(1); }
  50%     { transform: translate(60px, -40px) scale(1.1); }
}

/* ══════════════════════════════════════════════════
   APP LAYOUT
══════════════════════════════════════════════════ */
.app {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 260px 1fr;
  width: 100%;
  max-width: 1180px;
  height: min(880px, 92vh);
  background: var(--bg-panel);
  backdrop-filter: blur(30px) saturate(140%);
  -webkit-backdrop-filter: blur(30px) saturate(140%);
  border: 1px solid var(--border);
  border-radius: 26px;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  overflow: hidden;
}

/* ══════════════════════════════════════════════════
   SIDEBAR
══════════════════════════════════════════════════ */
.sidebar {
  display: flex;
  flex-direction: column;
  padding: 26px 20px;
  background: rgba(10, 12, 26, 0.55);
  border-right: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 30px;
}
.brand-icon {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  font-size: 24px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 24px var(--accent-glow);
}
.brand h1 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
.brand p {
  font-size: 12px;
  color: var(--text-dim);
}

.sidebar-nav { display: flex; flex-direction: column; gap: 6px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 11px 14px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
}
.nav-item:hover {
  background: rgba(139, 92, 246, 0.08);
  color: var(--text);
  border-color: rgba(139, 92, 246, 0.2);
}
.nav-item.active {
  background: linear-gradient(135deg, rgba(139,92,246,0.18), rgba(99,102,241,0.12));
  border-color: var(--border-hi);
  color: var(--text);
}
.nav-item span { font-size: 16px; }

.sidebar-stats {
  margin-top: auto;
  padding: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.stat { margin-bottom: 10px; }
.stat:last-child { margin-bottom: 0; }
.stat-label {
  display: block;
  font-size: 11px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 4px;
}
.stat-value {
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, #a78bfa, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.status-pill {
  display: inline-block;
  padding: 3px 9px;
  margin: 3px 4px 0 0;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(139,92,246,0.15);
  color: #c4b5fd;
  border: 1px solid rgba(139,92,246,0.25);
}

.sidebar-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 10px 4px 0;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
}
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 10px var(--success);
  animation: blink 2s infinite;
}
@keyframes blink {
  0%,100% { opacity: 1; }
  50%     { opacity: 0.4; }
}

/* ══════════════════════════════════════════════════
   CHAT AREA
══════════════════════════════════════════════════ */
.chat {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-width: 0;
}

.chat-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 26px;
  border-bottom: 1px solid var(--border);
  background: rgba(10,12,26,0.35);
}
.chat-avatar {
  position: relative;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  font-size: 22px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 20px var(--accent-glow);
}
.pulse {
  position: absolute;
  inset: -4px;
  border-radius: 16px;
  border: 2px solid var(--accent);
  opacity: 0;
  animation: pulse 2.5s infinite;
}
@keyframes pulse {
  0%   { opacity: 0.7; transform: scale(0.9); }
  100% { opacity: 0;   transform: scale(1.3); }
}
.chat-header h2 { font-size: 16px; font-weight: 700; }
.chat-status {
  font-size: 12px;
  color: var(--success);
  margin-top: 2px;
}
.clear-btn {
  margin-left: auto;
  width: 38px; height: 38px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 22px;
  font-weight: 300;
  cursor: pointer;
  transition: all 0.2s;
}
.clear-btn:hover {
  background: rgba(139,92,246,0.18);
  border-color: var(--border-hi);
  transform: rotate(90deg);
}

/* ─── MESSAGES ─── */
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  scroll-behavior: smooth;
}
.messages::-webkit-scrollbar { width: 8px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb {
  background: rgba(139,92,246,0.3);
  border-radius: 10px;
}
.messages::-webkit-scrollbar-thumb:hover { background: rgba(139,92,246,0.55); }

/* Welcome card */
.welcome {
  text-align: center;
  padding: 20px 10px 10px;
  animation: fadeUp 0.6s ease-out;
}
.welcome h3 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #e8eaf6 20%, #a78bfa 60%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.welcome p {
  color: var(--text-dim);
  font-size: 14px;
  max-width: 480px;
  margin: 0 auto 22px;
  line-height: 1.6;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  max-width: 560px;
  margin: 0 auto;
}
.chip {
  padding: 11px 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.22s;
}
.chip:hover {
  background: linear-gradient(135deg, rgba(139,92,246,0.18), rgba(99,102,241,0.12));
  border-color: var(--border-hi);
  color: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(139,92,246,0.25);
}

/* ─── Message Bubbles ─── */
.msg {
  display: flex;
  gap: 12px;
  max-width: 82%;
  animation: fadeUp 0.35s ease-out;
}
.msg.user { align-self: flex-end; flex-direction: row-reverse; }
.msg.bot  { align-self: flex-start; }

.bubble {
  padding: 14px 18px;
  border-radius: 18px;
  font-size: 14.5px;
  line-height: 1.65;
  word-wrap: break-word;
  word-break: break-word;
}
.msg.bot .bubble {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-top-left-radius: 6px;
}
.msg.user .bubble {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-top-right-radius: 6px;
  color: #fff;
  box-shadow: 0 8px 24px rgba(139,92,246,0.35);
}
.bubble strong { font-weight: 700; }

.avatar-mini {
  width: 32px; height: 32px;
  flex-shrink: 0;
  display: grid; place-items: center;
  font-size: 16px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 4px 12px var(--accent-glow);
}
.msg.user .avatar-mini {
  background: rgba(255,255,255,0.12);
}

/* ─── Order Card ─── */
.order-card {
  margin-top: 12px;
  background: linear-gradient(160deg, rgba(139,92,246,0.08), rgba(99,102,241,0.04));
  border: 1px solid var(--border-hi);
  border-radius: 14px;
  overflow: hidden;
  min-width: 320px;
}
.order-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(139,92,246,0.08);
  border-bottom: 1px solid var(--border);
}
.order-no {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.2px;
}
.badge {
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge.printing { background: rgba(59,130,246,0.18); color: #93c5fd; border: 1px solid rgba(59,130,246,0.4); }
.badge.completed { background: rgba(16,185,129,0.18); color: #6ee7b7; border: 1px solid rgba(16,185,129,0.4); }
.badge.pending  { background: rgba(245,158,11,0.18); color: #fcd34d; border: 1px solid rgba(245,158,11,0.4); }
.badge.default  { background: rgba(139,92,246,0.18); color: #c4b5fd; border: 1px solid rgba(139,92,246,0.4); }

.order-body {
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 18px;
}
.order-row { display: flex; flex-direction: column; gap: 3px; }
.order-row.full { grid-column: 1 / -1; }
.order-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-faint);
  font-weight: 600;
}
.order-value {
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
  word-break: break-word;
}

/* ─── Typing Indicator ─── */
.typing {
  display: flex;
  gap: 5px;
  padding: 15px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 18px;
  border-top-left-radius: 6px;
  width: fit-content;
}
.typing span {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out;
}
.typing span:nth-child(1) { animation-delay: 0s; }
.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes bounce {
  0%,60%,100% { transform: translateY(0); opacity: 0.4; }
  30%         { transform: translateY(-8px); opacity: 1; }
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Composer ─── */
.composer {
  display: flex;
  gap: 10px;
  padding: 16px 22px 20px;
  border-top: 1px solid var(--border);
  background: rgba(10,12,26,0.5);
}
.composer input {
  flex: 1;
  padding: 14px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 14.5px;
  outline: none;
  transition: all 0.22s;
}
.composer input::placeholder { color: var(--text-faint); }
.composer input:focus {
  border-color: var(--border-hi);
  background: rgba(139,92,246,0.06);
  box-shadow: 0 0 0 4px rgba(139,92,246,0.12);
}
.send-btn {
  width: 52px;
  display: grid; place-items: center;
  border: none;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  cursor: pointer;
  transition: all 0.22s;
  box-shadow: 0 6px 18px var(--accent-glow);
}
.send-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 10px 28px var(--accent-glow);
}
.send-btn:active { transform: scale(0.96); }
.send-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ══════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════ */
@media (max-width: 780px) {
  body { padding: 0; }
  .app {
    grid-template-columns: 1fr;
    border-radius: 0;
    height: 100vh;
    max-height: 100vh;
  }
  .sidebar { display: none; }
  .msg { max-width: 92%; }
  .welcome h3 { font-size: 22px; }
}