/* ================================================
   RailDayTrade — style.css
   Dark trading terminal aesthetic
   ================================================ */

:root {
  --bg-base:       #0a0c0f;
  --bg-panel:      #111318;
  --bg-card:       #181c23;
  --bg-input:      #0e1015;
  --border:        #252a35;
  --border-bright: #2e3545;

  --accent:        #00d4aa;
  --accent-dim:    #00a880;
  --accent-glow:   rgba(0, 212, 170, 0.15);

  --red:           #ff4f6a;
  --green:         #00d4aa;
  --yellow:        #f0c040;

  --text-primary:  #e2e8f0;
  --text-secondary:#7a8499;
  --text-dim:      #404858;

  --font-mono:     'Share Tech Mono', monospace;
  --font-ui:       'Noto Sans TC', sans-serif;

  --radius:        4px;
  --panel-width:   260px;
}

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

html, body {
  height: 100%;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 13px;
  overflow: hidden;
}

/* ── HEADER ── */
.app-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  height: 48px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.logo {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.subtitle {
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 1px;
  border-left: 1px solid var(--border-bright);
  padding-left: 12px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-dim);
  margin-left: auto;
  transition: background 0.3s;
}
.status-dot.active  { background: var(--green); box-shadow: 0 0 6px var(--green); animation: pulse 2s infinite; }
.status-dot.error   { background: var(--red); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.status-text {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
}

/* ── LAYOUT ── */
.app-layout {
  display: flex;
  height: calc(100vh - 48px - 28px);
  overflow: hidden;
}

/* ── CONTROL PANEL ── */
.control-panel {
  width: var(--panel-width);
  flex-shrink: 0;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 12px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.panel-section {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 4px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 11px;
  color: var(--text-secondary);
}

label.checkbox-label {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  cursor: pointer;
}

input[type="date"],
input[type="number"],
input[type="text"] {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 8px;
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
}
input:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 2px var(--accent-glow);
}
input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 1px;
  padding: 8px 12px;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  width: 100%;
}
.btn-primary:hover {
  background: #00ffcc;
  box-shadow: 0 0 10px var(--accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 6px 12px;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  width: 100%;
}
.btn-secondary:hover {
  background: var(--accent-glow);
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ── CHART AREA ── */
.chart-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-base);
  position: relative;
  overflow: hidden;
}

.chart-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.chart-title {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 1px;
}

.ohlc-display {
  display: flex;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
}
.ohlc-display span { transition: color 0.2s; }

#chart {
  flex: 1;
  width: 100%;
}

.chart-message {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-dim);
  letter-spacing: 2px;
  pointer-events: none;
  text-align: center;
}
.chart-message.hidden { display: none; }

/* ── FOOTER ── */
.app-footer {
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--text-dim);
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  letter-spacing: 1px;
  flex-shrink: 0;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }