/* ═══════════════════════════════════════════════════════════════════════════
   EMA Signal Terminal — Styles
   Palette: Acid Neon (#CCFF00 lime, #FF3CAC magenta, #0D0D0D black, #1A1A2E navy)
   Fonts: Syne (display) + Space Mono (terminal/data)
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Reset & Variables ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Core palette */
  --bg-void:      #080810;
  --bg-deep:      #0D0D1A;
  --bg-panel:     #111120;
  --bg-card:      #161628;
  --bg-hover:     #1E1E35;
  --bg-active:    #252540;

  /* Neon accents */
  --neon-lime:    #CCFF00;
  --neon-magenta: #FF3CAC;
  --neon-cyan:    #00F5FF;
  --neon-orange:  #FF6B2B;

  /* Signal colors */
  --buy-primary:  #00FF88;
  --buy-dim:      #00FF8833;
  --buy-border:   #00FF8866;
  --sell-primary: #FF3CAC;
  --sell-dim:     #FF3CAC33;
  --sell-border:  #FF3CAC66;

  /* Text */
  --text-primary:   #E8E8F0;
  --text-secondary: #8888AA;
  --text-muted:     #44445A;
  --text-accent:    #CCFF00;

  /* Borders */
  --border-subtle:  #1E1E35;
  --border-mid:     #2A2A45;
  --border-bright:  #3A3A60;

  /* Glow effects */
  --glow-lime:    0 0 20px #CCFF0044, 0 0 40px #CCFF0022;
  --glow-buy:     0 0 20px #00FF8844, 0 0 40px #00FF8822;
  --glow-sell:    0 0 20px #FF3CAC44, 0 0 40px #FF3CAC22;
  --glow-cyan:    0 0 20px #00F5FF44;

  /* Typography */
  --font-display:  'Syne', sans-serif;
  --font-mono:     'Space Mono', monospace;

  /* Layout */
  --header-h:     56px;
  --panel-gap:    1px;
  --radius-sm:    4px;
  --radius-md:    6px;
}

/* ── Base ───────────────────────────────────────────────────────────────── */
html { font-size: 14px; scroll-behavior: smooth; }

body {
  font-family: var(--font-mono);
  background: var(--bg-void);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.5;
}

/* ── Scanlines ──────────────────────────────────────────────────────────── */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.08) 2px,
    rgba(0, 0, 0, 0.08) 4px
  );
}

/* ── Header ─────────────────────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border-mid);
  backdrop-filter: blur(12px);
}

.header__left { display: flex; align-items: center; gap: 1rem; }
.header__right { display: flex; align-items: center; }

/* Logo */
.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--text-primary);
}
.logo__bracket { color: var(--text-muted); }
.logo__accent  { color: var(--neon-lime); text-shadow: var(--glow-lime); }

.header__meta { display: flex; gap: 0.5rem; }

/* Badges */
.badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 2px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.badge--version  { background: var(--bg-active); color: var(--text-secondary); border: 1px solid var(--border-mid); }
.badge--ema      { background: #CCFF0015; color: var(--neon-lime); border: 1px solid #CCFF0040; }

/* Status bar */
.status-bar { display: flex; align-items: center; gap: 1rem; }

.status-indicator { display: flex; align-items: center; gap: 0.4rem; }

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background 0.3s, box-shadow 0.3s;
}
.status-dot.connected    { background: var(--buy-primary); box-shadow: 0 0 8px var(--buy-primary); animation: pulse 2s infinite; }
.status-dot.disconnected { background: var(--sell-primary); box-shadow: 0 0 8px var(--sell-primary); }
.status-dot.connecting   { background: var(--neon-lime); animation: blink 1s infinite; }

.status-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
}

.stat-pill {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 3px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: 2px;
}
.stat-pill__label { font-size: 0.6rem; color: var(--text-muted); letter-spacing: 0.1em; }
.stat-pill__value { font-size: 0.75rem; font-weight: 700; color: var(--neon-lime); }

.clock {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.1em;
  min-width: 70px;
  text-align: right;
}

/* ── Main Layout ────────────────────────────────────────────────────────── */
.main {
  display: grid;
  grid-template-columns: 320px 1fr 280px;
  grid-template-rows: calc(100vh - var(--header-h));
  gap: var(--panel-gap);
  background: var(--border-subtle);
}

/* ── Panels ─────────────────────────────────────────────────────────────── */
.panel {
  background: var(--bg-panel);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.panel__title {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.panel__controls { display: flex; gap: 0.4rem; align-items: center; }

/* ── Control Elements ───────────────────────────────────────────────────── */
.ctrl-select {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-sm);
  padding: 3px 6px;
  cursor: pointer;
  outline: none;
  appearance: none;
}
.ctrl-select:focus { border-color: var(--neon-lime); }

.ctrl-btn {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}
.ctrl-btn:hover       { background: var(--bg-hover); color: var(--text-primary); }
.ctrl-btn--active     { background: #CCFF0015; color: var(--neon-lime); border-color: #CCFF0040; }
.ctrl-btn--buy.active { background: var(--buy-dim); color: var(--buy-primary); border-color: var(--buy-border); }
.ctrl-btn--sell.active{ background: var(--sell-dim); color: var(--sell-primary); border-color: var(--sell-border); }

/* ── EMA Grid (Left Panel) ──────────────────────────────────────────────── */
.ema-grid {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ema-grid__loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  height: 100%;
  color: var(--text-muted);
  font-size: 0.75rem;
}

.ema-row {
  display: grid;
  grid-template-columns: 70px 40px 1fr 1fr 60px;
  align-items: center;
  gap: 0.4rem;
  padding: 5px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  font-size: 0.65rem;
}
.ema-row:hover { background: var(--bg-hover); border-color: var(--border-mid); }
.ema-row.bullish { border-left: 2px solid var(--buy-primary); }
.ema-row.bearish { border-left: 2px solid var(--sell-primary); }
.ema-row.neutral { border-left: 2px solid var(--border-mid); }

.ema-row__symbol { font-weight: 700; color: var(--text-primary); font-size: 0.7rem; }
.ema-row__tf     { color: var(--text-muted); font-size: 0.6rem; }
.ema-row__val    { color: var(--text-secondary); font-size: 0.6rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ema-row__badge  {
  font-size: 0.55rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 2px;
  text-align: center;
  letter-spacing: 0.05em;
}
.ema-row__badge.bull { background: var(--buy-dim); color: var(--buy-primary); }
.ema-row__badge.bear { background: var(--sell-dim); color: var(--sell-primary); }
.ema-row__badge.wait { background: var(--bg-active); color: var(--text-muted); }

/* ── Signal Feed (Center Panel) ─────────────────────────────────────────── */
.alert-banner {
  margin: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  border: 1px solid;
  animation: slideDown 0.3s ease;
}
.alert-banner.info  { background: #00F5FF15; color: var(--neon-cyan); border-color: #00F5FF40; }
.alert-banner.error { background: var(--sell-dim); color: var(--sell-primary); border-color: var(--sell-border); }

.signal-feed {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.signal-feed__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 0.5rem;
  color: var(--text-muted);
  text-align: center;
}
.empty-icon { font-size: 2.5rem; color: var(--border-bright); }
.empty-sub  { font-size: 0.65rem; color: var(--text-muted); max-width: 240px; line-height: 1.6; }

/* Signal card */
.signal-card {
  display: grid;
  grid-template-columns: 4px 1fr auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all 0.2s;
  animation: cardIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.signal-card:hover { background: var(--bg-hover); transform: translateX(2px); }

.signal-card.buy  { border-color: var(--buy-border); }
.signal-card.sell { border-color: var(--sell-border); }

.signal-card__stripe { width: 4px; }
.signal-card.buy  .signal-card__stripe { background: var(--buy-primary); box-shadow: var(--glow-buy); }
.signal-card.sell .signal-card__stripe { background: var(--sell-primary); box-shadow: var(--glow-sell); }

.signal-card__body {
  padding: 0.6rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.signal-card__top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.signal-type {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 1px 8px;
  border-radius: 2px;
}
.signal-type.buy  { background: var(--buy-dim); color: var(--buy-primary); border: 1px solid var(--buy-border); }
.signal-type.sell { background: var(--sell-dim); color: var(--sell-primary); border: 1px solid var(--sell-border); }

.signal-symbol {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

.signal-tf {
  font-size: 0.6rem;
  color: var(--text-muted);
  background: var(--bg-active);
  padding: 1px 6px;
  border-radius: 2px;
}

.signal-card__data {
  display: flex;
  gap: 1rem;
  font-size: 0.62rem;
  color: var(--text-secondary);
}

.signal-data-item { display: flex; flex-direction: column; gap: 1px; }
.signal-data-item__label { font-size: 0.55rem; color: var(--text-muted); letter-spacing: 0.08em; }
.signal-data-item__val   { font-weight: 700; color: var(--text-primary); }

.signal-card__time {
  padding: 0.6rem 0.75rem;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  gap: 0.25rem;
}
.signal-time-val { font-size: 0.6rem; color: var(--text-muted); }
.signal-new-badge {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--neon-lime);
  background: #CCFF0015;
  border: 1px solid #CCFF0040;
  padding: 1px 5px;
  border-radius: 2px;
  animation: blink 1.5s 3;
}

/* ── Right Panel ────────────────────────────────────────────────────────── */
.panel--right { overflow-y: auto; }

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  padding: 0.75rem;
}

.stat-card {
  padding: 0.75rem;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid;
}
.stat-card--buy  { background: var(--buy-dim); border-color: var(--buy-border); }
.stat-card--sell { background: var(--sell-dim); border-color: var(--sell-border); }

.stat-card__value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1;
}
.stat-card--buy  .stat-card__value { color: var(--buy-primary); text-shadow: var(--glow-buy); }
.stat-card--sell .stat-card__value { color: var(--sell-primary); text-shadow: var(--glow-sell); }

.stat-card__label {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Breakdown sections */
.breakdown-section { padding: 0 0.75rem 0.75rem; }
.breakdown-title {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
}

.breakdown-list { display: flex; flex-direction: column; gap: 3px; }

.breakdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.65rem;
  padding: 3px 6px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
}
.breakdown-item__label { color: var(--text-secondary); }
.breakdown-item__bar-wrap { flex: 1; margin: 0 0.5rem; height: 3px; background: var(--border-subtle); border-radius: 2px; overflow: hidden; }
.breakdown-item__bar { height: 100%; background: var(--neon-lime); border-radius: 2px; transition: width 0.5s ease; }
.breakdown-item__count { color: var(--neon-lime); font-weight: 700; min-width: 20px; text-align: right; }

/* Config list */
.config-list { padding: 0 0.75rem 0.75rem; display: flex; flex-direction: column; gap: 3px; }
.config-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.62rem;
  padding: 4px 6px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
}
.config-key { color: var(--text-muted); letter-spacing: 0.05em; }
.config-val { color: var(--neon-lime); font-weight: 700; text-align: right; max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* API links */
.api-links { padding: 0 0.75rem 1rem; }
.api-link {
  display: block;
  font-size: 0.62rem;
  color: var(--neon-cyan);
  text-decoration: none;
  padding: 3px 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: color 0.15s;
}
.api-link:hover { color: var(--text-primary); }

/* ── Toast Notifications ────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid;
  max-width: 320px;
  pointer-events: all;
  animation: toastIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  backdrop-filter: blur(8px);
}
.toast.buy  { background: #00FF8820; color: var(--buy-primary); border-color: var(--buy-border); box-shadow: var(--glow-buy); }
.toast.sell { background: #FF3CAC20; color: var(--sell-primary); border-color: var(--sell-border); box-shadow: var(--glow-sell); }
.toast.info { background: #00F5FF15; color: var(--neon-cyan); border-color: #00F5FF40; }
.toast.error{ background: var(--sell-dim); color: var(--sell-primary); border-color: var(--sell-border); }

.toast__title { font-weight: 700; letter-spacing: 0.05em; }
.toast__body  { color: inherit; opacity: 0.8; margin-top: 2px; }

/* ── Modal ──────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 8, 16, 0.85);
  backdrop-filter: blur(4px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  max-width: 480px;
  width: 90%;
  position: relative;
  animation: modalIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  transition: color 0.15s;
}
.modal__close:hover { color: var(--text-primary); }

.modal__content { font-size: 0.75rem; }
.modal-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 1rem;
}
.modal-title.buy  { color: var(--buy-primary); text-shadow: var(--glow-buy); }
.modal-title.sell { color: var(--sell-primary); text-shadow: var(--glow-sell); }

.modal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.modal-field { background: var(--bg-card); padding: 0.5rem 0.75rem; border-radius: var(--radius-sm); }
.modal-field__label { font-size: 0.55rem; color: var(--text-muted); letter-spacing: 0.1em; margin-bottom: 2px; }
.modal-field__val   { font-weight: 700; color: var(--text-primary); }

.modal-id {
  font-size: 0.6rem;
  color: var(--text-muted);
  background: var(--bg-card);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  word-break: break-all;
}

.modal-disclaimer {
  margin-top: 1rem;
  font-size: 0.6rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.75rem;
  line-height: 1.6;
}

/* ── Scrollbar ──────────────────────────────────────────────────────────── */
::-webkit-scrollbar       { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Spinner ────────────────────────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2px solid var(--border-mid);
  border-top-color: var(--neon-lime);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ── Animations ─────────────────────────────────────────────────────────── */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

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

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(-8px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px) scale(0.95); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.92) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

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

@keyframes glowPulse {
  0%, 100% { box-shadow: var(--glow-buy); }
  50%       { box-shadow: none; }
}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .main { grid-template-columns: 280px 1fr; grid-template-rows: auto auto; }
  .panel--right { grid-column: 1 / -1; grid-row: 2; max-height: 300px; flex-direction: row; overflow-x: auto; }
}

@media (max-width: 720px) {
  .main { grid-template-columns: 1fr; grid-template-rows: auto; }
  .panel--left  { max-height: 300px; }
  .panel--right { max-height: 250px; }
  .header__meta { display: none; }
  .stat-pill    { display: none; }
}