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

:root {
  --bg: #0a0e17;
  --surface: #111826;
  --surface2: #161d2e;
  --accent: #00e5a0;
  --accent-dim: rgba(0,229,160,0.12);
  --blue: #2E75B6;
  --text: #e8ecf4;
  --text2: #8892a8;
  --red: #ff4757;
  --yellow: #ffa502;
  --green: #00e5a0;
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body { background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; min-height: 100vh; }

/* ── HEADER ── */
.header { padding: 16px 24px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 26px; font-weight: 800; letter-spacing: 3px; color: var(--accent); }
.logo-sub { font-size: 12px; color: var(--text2); margin-left: 12px; letter-spacing: 1px; }
.logo-area { display: flex; align-items: baseline; }
.nav { display: flex; gap: 20px; }
.nav a { color: var(--text2); text-decoration: none; font-size: 14px; transition: color 0.2s; }
.nav a:hover { color: var(--accent); }
.header-tagline { font-size: 13px; color: var(--text2); margin-top: 4px; }

/* ── SETUP PANEL ── */
.setup-panel { padding: 20px 24px; border-bottom: 1px solid rgba(255,255,255,0.06); }
.setup-panel.collapsed { display: none; }
.setup-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.setup-card { background: var(--surface); padding: 16px; border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.06); }
.setup-label { font-size: 11px; text-transform: uppercase; letter-spacing: 1px; color: var(--accent); margin-bottom: 10px; font-weight: 600; }

.setup-card select, .setup-card input[type="password"], .setup-card input[type="number"], .setup-card input[type="text"] {
  width: 100%; padding: 10px 12px; background: var(--surface2); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px; color: var(--text); font-size: 14px; outline: none; margin-bottom: 8px;
}
.setup-card select:focus, .setup-card input:focus { border-color: var(--accent); }
.setup-card small { display: block; font-size: 11px; color: var(--text2); margin-top: 4px; }

.btn-outline { width: 100%; padding: 10px; background: transparent; border: 1px solid rgba(255,255,255,0.15);
  border-radius: 6px; color: var(--text); font-size: 14px; cursor: pointer; margin-bottom: 8px; transition: all 0.2s; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.btn-sm { padding: 8px 14px; background: var(--surface2); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px; color: var(--text); font-size: 13px; cursor: pointer; }

.manual-coords { display: flex; gap: 6px; }
.manual-coords input { flex: 1; }

.api-key-row { margin-top: 8px; }
.api-key-row.hidden { display: none; }

.location-display { font-size: 13px; color: var(--accent); margin-top: 8px; }

/* Connection Status */
.conn-status { display: flex; align-items: center; gap: 8px; font-size: 14px; margin-bottom: 12px; }
.conn-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.conn-status.disconnected .conn-dot { background: #555; }
.conn-status.connecting .conn-dot { background: var(--yellow); animation: blink 0.6s infinite; }
.conn-status.connected .conn-dot { background: var(--green); box-shadow: 0 0 8px var(--green); }
.conn-dot.connected { background: var(--green); box-shadow: 0 0 8px var(--green); }

.btn-connect { width: 100%; padding: 12px; background: var(--accent); color: #0a0e17; border: none;
  border-radius: 6px; font-size: 15px; font-weight: 700; cursor: pointer; transition: opacity 0.2s; }
.btn-connect:hover { opacity: 0.9; }
.btn-connect:disabled { opacity: 0.4; cursor: not-allowed; }

.conn-details { font-size: 12px; color: var(--text2); margin-top: 8px; line-height: 1.8; }
.conn-details.hidden { display: none; }

@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* ── STATUS BAR ── */
.status-bar { display: flex; align-items: center; gap: 10px; padding: 10px 24px; background: var(--surface);
  border-bottom: 1px solid rgba(255,255,255,0.06); cursor: pointer; font-size: 13px; color: var(--text2); }
.status-bar.hidden { display: none; }
.status-expand { margin-left: auto; font-size: 10px; }

/* ── MAIN AREA ── */
.main-area { padding: 0 24px 24px; flex: 1; }
.main-area.hidden { display: none; }
.main-grid { display: grid; grid-template-columns: 65fr 35fr; gap: 20px; height: calc(100vh - 220px); min-height: 500px; }

/* ── CHAT PANEL ── */
.chat-panel { display: flex; flex-direction: column; background: var(--surface); border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06); overflow: hidden; }
.chat-header { padding: 12px 16px; font-size: 13px; font-weight: 600; color: var(--accent);
  border-bottom: 1px solid rgba(255,255,255,0.06); background: var(--accent-dim); }
.chat-messages { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.chat-input-bar { display: flex; gap: 8px; padding: 12px 16px; border-top: 1px solid rgba(255,255,255,0.06); }
.chat-input-bar input { flex: 1; padding: 12px 16px; background: var(--surface2); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px; color: var(--text); font-size: 15px; outline: none; }
.chat-input-bar input:focus { border-color: var(--accent); }
.chat-input-bar button { padding: 12px 24px; background: var(--accent); color: #0a0e17; border: none;
  border-radius: 8px; font-weight: 700; font-size: 15px; cursor: pointer; }
.chat-input-bar button:disabled { opacity: 0.4; cursor: not-allowed; }

/* Messages */
.msg { max-width: 85%; padding: 12px 16px; border-radius: 12px; font-size: 15px; line-height: 1.7; }
.msg.user { align-self: flex-end; background: #0a3d2a; border-bottom-right-radius: 4px; }
.msg.ai { align-self: flex-start; background: var(--surface2); border-bottom-left-radius: 4px; }
.msg.system { align-self: center; background: var(--accent-dim); color: var(--accent); font-size: 13px;
  text-align: center; border-radius: 8px; padding: 10px 20px; }

.msg.ai .msg-label { font-size: 11px; color: var(--accent); margin-bottom: 6px; font-weight: 600; }
.msg.ai h1, .msg.ai h2, .msg.ai h3 { color: var(--accent); margin: 10px 0 6px; font-size: 15px; }
.msg.ai strong { color: var(--accent); }
.msg.ai ul, .msg.ai ol { padding-left: 18px; margin: 6px 0; }
.msg.ai li { margin-bottom: 3px; }
.msg.ai p { margin-bottom: 8px; }
.msg.ai code { background: rgba(255,255,255,0.08); padding: 2px 6px; border-radius: 4px; font-size: 13px; }

/* Typing indicator */
.typing { display: flex; align-items: center; gap: 10px; padding: 12px 16px; align-self: flex-start; }
.typing-dots { display: flex; gap: 5px; }
.typing-dots span { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; animation: typePulse 1.4s infinite; }
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typePulse { 0%,80%,100% { opacity: 0.3; transform: scale(0.8); } 40% { opacity: 1; transform: scale(1); } }
.typing-text { font-size: 13px; color: var(--text2); }

/* ── SENSOR PANEL ── */
.sensor-panel { display: flex; flex-direction: column; background: var(--surface); border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06); overflow: hidden; }
.sensor-header { display: flex; align-items: center; gap: 10px; padding: 12px 16px; font-size: 12px;
  font-weight: 700; letter-spacing: 1px; color: var(--accent); border-bottom: 1px solid rgba(255,255,255,0.06); }
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 6px var(--green); animation: blink 2s infinite; }
.sensor-feed { flex: 1; overflow-y: auto; padding: 16px; }
.sensor-placeholder { color: var(--text2); font-size: 14px; text-align: center; padding: 40px 0; }
.sensor-timestamp { font-size: 11px; color: var(--text2); padding: 8px 16px; border-top: 1px solid rgba(255,255,255,0.06); text-align: center; }

.sensor-section { margin-bottom: 16px; }
.sensor-section-title { font-size: 13px; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.sensor-row { font-size: 13px; color: var(--text2); padding: 3px 0; padding-left: 24px; }
.sensor-row .sense-verb { color: var(--accent); font-weight: 600; }
.sensor-row .sense-value { color: var(--text); }

.hw-border { border-left: 3px solid var(--green); }
.badge-hw { display: inline-block; padding: 1px 8px; border-radius: 8px; font-size: 10px; font-weight: 700;
  background: rgba(0,229,160,0.15); color: var(--green); letter-spacing: 0.5px; margin-left: 8px; vertical-align: middle; }
.badge-model { display: inline-block; padding: 1px 8px; border-radius: 8px; font-size: 10px; font-weight: 700;
  background: rgba(46,117,182,0.15); color: var(--blue); letter-spacing: 0.5px; margin-left: 8px; vertical-align: middle; }

/* ── TICKER ── */
.ticker { overflow: hidden; background: var(--surface); border-top: 1px solid rgba(255,255,255,0.06); padding: 10px 0; }
.ticker.hidden { display: none; }
.ticker-track { display: flex; gap: 40px; white-space: nowrap; animation: scroll 60s linear infinite; font-size: 13px; color: var(--text2); }
.ticker-track span { display: inline-flex; align-items: center; gap: 6px; }
.ticker-track .spot-name { color: var(--text); font-weight: 600; }
@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ── FOOTER ── */
.footer { padding: 32px 24px; border-top: 1px solid rgba(255,255,255,0.06); text-align: center; }
.footer-brand { font-size: 14px; font-weight: 700; letter-spacing: 2px; color: var(--text2); }
.footer-sub { font-size: 13px; color: var(--text2); margin: 4px 0 16px; }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 12px; }
.footer-links a { color: var(--text2); text-decoration: none; font-size: 13px; }
.footer-links a:hover { color: var(--accent); }
.footer-cta { font-size: 13px; color: var(--text2); }
.footer-cta a { color: var(--accent); text-decoration: none; }

/* ── SHARED STYLES for register/dashboard/docs ── */
.page-container { max-width: 700px; margin: 0 auto; padding: 40px 24px; }
.page-title { font-size: 28px; font-weight: 800; letter-spacing: 2px; color: var(--accent); margin-bottom: 8px; }
.page-sub { color: var(--text2); font-size: 15px; margin-bottom: 32px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text2); margin-bottom: 6px; }
.form-group input { width: 100%; padding: 12px 14px; background: var(--surface2); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px; color: var(--text); font-size: 15px; outline: none; }
.form-group input:focus { border-color: var(--accent); }
.btn-primary { width: 100%; padding: 14px; background: var(--accent); color: #0a0e17; border: none;
  border-radius: 8px; font-size: 16px; font-weight: 700; cursor: pointer; margin-top: 8px; }
.btn-primary:hover { opacity: 0.9; }
.form-card { background: var(--surface); padding: 24px; border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.06); }
.alert { padding: 12px 16px; border-radius: 6px; font-size: 14px; margin-bottom: 16px; }
.alert.success { background: var(--accent-dim); color: var(--accent); }
.alert.error { background: rgba(255,71,87,0.15); color: var(--red); }
.key-display { background: var(--surface2); padding: 16px; border-radius: 6px; font-family: monospace; font-size: 15px;
  color: var(--accent); word-break: break-all; margin: 12px 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.key-display .copy-btn { padding: 6px 14px; background: var(--accent); color: #0a0e17; border: none;
  border-radius: 4px; font-size: 12px; font-weight: 700; cursor: pointer; white-space: nowrap; }
.code-block { background: var(--surface2); padding: 16px; border-radius: 6px; font-family: monospace;
  font-size: 13px; color: var(--text2); overflow-x: auto; margin: 12px 0; line-height: 1.7; white-space: pre-wrap; }
.page-link { font-size: 14px; color: var(--text2); text-align: center; margin-top: 20px; }
.page-link a { color: var(--accent); text-decoration: none; }

/* Docs */
.docs-container { max-width: 800px; margin: 0 auto; padding: 40px 24px; }
.docs-container h2 { color: var(--accent); font-size: 20px; margin: 32px 0 12px; border-bottom: 1px solid rgba(255,255,255,0.06); padding-bottom: 8px; }
.docs-container h3 { color: var(--text); font-size: 16px; margin: 20px 0 8px; }
.docs-container p { color: var(--text2); margin-bottom: 12px; }
.docs-container ul { padding-left: 20px; margin-bottom: 12px; }
.docs-container li { color: var(--text2); margin-bottom: 6px; }
.docs-container code { background: rgba(255,255,255,0.08); padding: 2px 6px; border-radius: 3px; font-size: 13px; color: var(--accent); }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.data-table th { text-align: left; font-size: 12px; color: var(--text2); padding: 8px 12px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.data-table td { font-size: 14px; padding: 10px 12px; border-bottom: 1px solid rgba(255,255,255,0.04); }
.data-table td.mono { font-family: monospace; font-size: 13px; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .setup-grid { grid-template-columns: 1fr; }
  .main-grid { grid-template-columns: 1fr; height: auto; }
  .chat-panel { min-height: 400px; }
  .sensor-panel { max-height: 300px; }
  .header-inner { flex-direction: column; align-items: flex-start; gap: 8px; }
  .nav { gap: 16px; }
}
@media (max-width: 600px) {
  .header { padding: 12px 16px; }
  .setup-panel { padding: 12px 16px; }
  .main-area { padding: 0 12px 16px; }
  .logo { font-size: 22px; }
  .manual-coords { flex-wrap: wrap; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

.hidden { display: none !important; }