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

:root {
  --bg-page:       #0a0e0f;
  --bg-header:     #0d1214;
  --bg-card:       #111619;
  --bg-card-hover: #151c1f;
  --bg-ind:        #0d1214;
  --bg-bar:        #0d1214;
  --border:        rgba(255,255,255,0.07);
  --border-bright: rgba(255,255,255,0.13);
  --neon-cyan:     #00e5ff;
  --neon-green:    #39ff7a;
  --neon-amber:    #ffb627;
  --neon-red:      #ff4d4d;
  --neon-purple:   #b06cff;
  --neon-blue:     #4d9fff;
  --text-primary:  #e8edf0;
  --text-secondary:#8a9ba8;
  --text-tertiary: #4a5a65;
  --sig-sbull-bg:  rgba(57,255,122,0.12);
  --sig-sbull-txt: #39ff7a;
  --sig-sbull-bar: #39ff7a;
  --sig-bull-bg:   rgba(0,229,255,0.10);
  --sig-bull-txt:  #00e5ff;
  --sig-bull-bar:  #00e5ff;
  --sig-neutral-bg:rgba(138,155,168,0.10);
  --sig-neutral-txt:#8a9ba8;
  --sig-neutral-bar:#8a9ba8;
  --sig-bear-bg:   rgba(255,182,39,0.10);
  --sig-bear-txt:  #ffb627;
  --sig-bear-bar:  #ffb627;
  --sig-sbear-bg:  rgba(255,77,77,0.12);
  --sig-sbear-txt: #ff4d4d;
  --sig-sbear-bar: #ff4d4d;
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 11px;
}

html { font-size: 16px; }
body {
  font-family: "SF Mono","Fira Code","Consolas","Roboto Mono",monospace;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,0.08) 2px,rgba(0,0,0,0.08) 4px);
  pointer-events: none;
  z-index: 0;
}
.site-header {
  background: var(--bg-header);
  border-bottom: 1px solid var(--neon-cyan);
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  gap: 1rem;
}
.logo-group { display: flex; align-items: center; gap: 10px; }
.logo-icon { width: 34px; height: 34px; flex-shrink: 0; }
.logo-name { font-size: 17px; font-weight: 700; letter-spacing: 0.05em; color: var(--neon-cyan); text-transform: uppercase; }
.logo-tagline { font-size: 10px; color: var(--text-tertiary); letter-spacing: 0.1em; text-transform: uppercase; margin-top: 1px; }
.header-right { display: flex; align-items: center; gap: 16px; }
.market-status { font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 3px; letter-spacing: 0.08em; text-transform: uppercase; }
.market-status.open  { background: rgba(57,255,122,0.15); color: var(--neon-green); border: 1px solid rgba(57,255,122,0.3); }
.market-status.closed { background: rgba(138,155,168,0.1); color: var(--text-tertiary); border: 1px solid var(--border); }
.last-update { font-size: 11px; color: var(--text-tertiary); letter-spacing: 0.03em; }
.main { max-width: 1400px; margin: 0 auto; padding: 1.25rem 1.5rem 3rem; position: relative; z-index: 1; }
.controls-bar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; margin-bottom: 1rem; }
.source-pills { display: flex; gap: 6px; flex-wrap: wrap; }
.src-pill { font-size: 10px; font-weight: 700; padding: 4px 10px; border-radius: 3px; letter-spacing: 0.07em; text-transform: uppercase; }
.src-pill.polygon { background: rgba(77,159,255,0.12); color: var(--neon-blue); border: 1px solid rgba(77,159,255,0.25); }
.src-pill.yahoo   { background: rgba(255,182,39,0.10); color: var(--neon-amber); border: 1px solid rgba(255,182,39,0.2); }
.controls-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.controls-right select { font-size: 12px; font-family: inherit; padding: 7px 10px; border-radius: var(--radius-md); border: 1px solid var(--border-bright); background: var(--bg-card); color: var(--text-primary); cursor: pointer; outline: none; letter-spacing: 0.02em; }
.controls-right select:focus { border-color: var(--neon-cyan); }
#refBtn { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-family: inherit; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; padding: 7px 16px; border-radius: var(--radius-md); border: 1px solid var(--neon-cyan); background: transparent; color: var(--neon-cyan); cursor: pointer; transition: background 0.15s, color 0.15s; }
#refBtn:hover { background: var(--neon-cyan); color: #000; }
#refBtn:active { transform: scale(0.98); }
#refBtn:disabled { opacity: 0.4; cursor: not-allowed; }
.legend-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 1.25rem; padding: 10px 14px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-md); }
.leg { font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 3px; letter-spacing: 0.06em; text-transform: uppercase; }
.leg.strong-bull { background: var(--sig-sbull-bg); color: var(--sig-sbull-txt); border: 1px solid rgba(57,255,122,0.25); }
.leg.bull        { background: var(--sig-bull-bg);  color: var(--sig-bull-txt);  border: 1px solid rgba(0,229,255,0.2); }
.leg.neutral     { background: var(--sig-neutral-bg); color: var(--sig-neutral-txt); border: 1px solid var(--border); }
.leg.bear        { background: var(--sig-bear-bg);  color: var(--sig-bear-txt);  border: 1px solid rgba(255,182,39,0.25); }
.leg.strong-bear { background: var(--sig-sbear-bg); color: var(--sig-sbear-txt); border: 1px solid rgba(255,77,77,0.3); }
.legend-note { font-size: 10px; color: var(--text-tertiary); margin-left: auto; letter-spacing: 0.04em; text-transform: uppercase; }
.cat-hdr { font-size: 11px; font-weight: 700; color: var(--neon-purple); letter-spacing: 0.12em; text-transform: uppercase; margin: 1.5rem 0 0.75rem; padding-bottom: 6px; border-bottom: 1px solid rgba(176,108,255,0.25); display: flex; align-items: center; gap: 8px; }
.cat-hdr::before { content: ''; display: inline-block; width: 3px; height: 14px; background: var(--neon-purple); border-radius: 2px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 10px; }
.card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1rem 1.1rem; transition: border-color 0.2s, background 0.2s; position: relative; overflow: hidden; }
.card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--card-accent, transparent); }
.card:hover { background: var(--bg-card-hover); border-color: var(--border-bright); }
.card-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 8px; }
.card-name { font-size: 13px; font-weight: 700; color: var(--text-primary); letter-spacing: 0.03em; }
.card-meta { font-size: 10px; color: var(--text-tertiary); margin-top: 2px; letter-spacing: 0.04em; text-transform: uppercase; }
.sig-badge { font-size: 10px; font-weight: 700; padding: 3px 9px; border-radius: 3px; white-space: nowrap; flex-shrink: 0; margin-left: 8px; letter-spacing: 0.07em; text-transform: uppercase; }
.price-row { display: flex; align-items: baseline; gap: 8px; margin-bottom: 10px; }
.price { font-size: 22px; font-weight: 700; color: var(--text-primary); letter-spacing: -0.01em; }
.chg   { font-size: 13px; font-weight: 700; }
.up    { color: var(--neon-green); }
.dn    { color: var(--neon-red); }
.inds  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; margin-bottom: 10px; }
.ind   { background: var(--bg-ind); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 5px 7px; }
.ind-lbl { font-size: 9px; color: var(--text-tertiary); margin-bottom: 2px; letter-spacing: 0.07em; text-transform: uppercase; }
.ind-val { font-size: 12px; font-weight: 700; color: var(--text-primary); }
.rsi-ob { color: var(--neon-red) !important; }
.rsi-os { color: var(--neon-green) !important; }
.macd-pos { color: var(--neon-green) !important; }
.macd-neg { color: var(--neon-red) !important; }
.bars { margin-bottom: 8px; }
.bar-row { margin-bottom: 5px; }
.bar-meta { display: flex; justify-content: space-between; font-size: 10px; color: var(--text-tertiary); margin-bottom: 3px; letter-spacing: 0.03em; }
.bar-track { height: 4px; background: var(--bg-bar); border-radius: 2px; overflow: hidden; }
.bar-fill  { height: 100%; border-radius: 2px; transition: width 0.6s ease; }
.card-foot { display: flex; justify-content: space-between; font-size: 10px; color: var(--text-tertiary); margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border); letter-spacing: 0.04em; text-transform: uppercase; }
.foot-val { font-weight: 700; }
.trend-bull { color: var(--neon-green); }
.trend-bear { color: var(--neon-red); }
.data-src { display: inline-block; font-size: 9px; font-weight: 700; padding: 1px 6px; border-radius: 3px; margin-left: 5px; vertical-align: middle; position: relative; top: -1px; letter-spacing: 0.05em; text-transform: uppercase; }
.ds-polygon { background: rgba(77,159,255,0.12); color: var(--neon-blue); border: 1px solid rgba(77,159,255,0.2); }
.ds-yahoo   { background: rgba(138,155,168,0.08); color: var(--text-secondary); border: 1px solid var(--border); }
.loading-state { text-align: center; padding: 4rem 1rem; color: var(--text-secondary); }
.loading-state p { margin-top: 12px; font-size: 13px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--text-tertiary); }
.spinner { display: inline-block; width: 28px; height: 28px; border: 2px solid var(--border-bright); border-top-color: var(--neon-cyan); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.err-card { background: rgba(255,77,77,0.08); border: 1px solid rgba(255,77,77,0.2); border-radius: var(--radius-sm); padding: 8px 12px; font-size: 12px; color: var(--neon-red); margin-top: 6px; }
.global-err { background: rgba(255,182,39,0.08); border: 1px solid rgba(255,182,39,0.25); border-radius: var(--radius-lg); padding: 1.25rem 1.5rem; color: var(--neon-amber); font-size: 13px; margin-top: 1rem; }
.site-footer { background: var(--bg-header); border-top: 1px solid var(--border); padding: 1.1rem 1.5rem; text-align: center; font-size: 12px; line-height: 1.5; color: rgba(255,255,255,0.92); letter-spacing: 0.04em; text-transform: uppercase; position: relative; z-index: 1; }
.site-footer-brand { color: var(--neon-cyan); font-weight: 500; }
.site-footer a { color: rgba(255,255,255,0.95); text-decoration: none; }
.site-footer a:hover { color: var(--neon-cyan); }
@media (max-width: 640px) {
  .main { padding: 1rem; }
  .header-inner { height: 50px; }
  .logo-name { font-size: 14px; }
  .legend-note { display: none; }
  .controls-bar { flex-direction: column; align-items: flex-start; }
}

/* ── Tab bar ── */
.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}
.tab-btn {
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 10px 20px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: #8a9ba8;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  position: relative;
  bottom: -1px;
}
.tab-btn:hover { color: #e8edf0; }
.tab-active {
  color: #00e5ff !important;
  border-bottom-color: #00e5ff !important;
}
.watch-badge {
  display: inline-block;
  background: #ffb627;
  color: #000;
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 10px;
  margin-left: 5px;
  vertical-align: middle;
  line-height: 1.4;
}

/* ── Alert settings panel ── */
.alert-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 7px 16px;
  border-radius: var(--radius-md);
  border: 1px solid #b06cff;
  background: transparent;
  color: #b06cff;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.alert-btn:hover { background: #b06cff; color: #000; }

.alert-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.alert-modal {
  background: #0d1214;
  border: 1px solid #b06cff;
  border-radius: 12px;
  padding: 1.5rem;
  width: min(560px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  box-sizing: border-box;
}
.alert-modal h2 {
  font-size: 14px;
  font-weight: 700;
  color: #b06cff;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0;
}
.alert-section {
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 8px;
  padding: 1rem;
}
.alert-section-title {
  font-size: 11px;
  font-weight: 700;
  color: #8a9ba8;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.alert-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
  gap: 8px;
}
.alert-row:last-child { margin-bottom: 0; }
.alert-label {
  font-size: 12px;
  color: #e8edf0;
  letter-spacing: 0.03em;
}
.alert-sublabel {
  font-size: 10px;
  color: #4a5a65;
  margin-top: 2px;
  letter-spacing: 0.03em;
}
.toggle-wrap { position: relative; width: 40px; height: 22px; flex-shrink: 0; }
.toggle-wrap input { opacity: 0; width: 0; height: 0; position: absolute; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  border-radius: 22px;
  cursor: pointer;
  transition: background 0.2s;
  border: 1px solid rgba(255,255,255,0.1);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  left: 2px; top: 2px;
  background: #8a9ba8;
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}
.toggle-wrap input:checked + .toggle-slider { background: rgba(176,108,255,0.3); border-color: #b06cff; }
.toggle-wrap input:checked + .toggle-slider::before { transform: translateX(18px); background: #b06cff; }
.alert-input {
  font-family: inherit;
  font-size: 12px;
  padding: 7px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: #e8edf0;
  width: 100%;
  outline: none;
  box-sizing: border-box;
  letter-spacing: 0.02em;
}
.alert-input:focus { border-color: #b06cff; }
.alert-input::placeholder { color: #4a5a65; }
.alert-actions { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }
.alert-save {
  font-family: inherit; font-size: 12px; font-weight: 700;
  letter-spacing: 0.07em; text-transform: uppercase;
  padding: 8px 20px; border-radius: 6px;
  border: 1px solid #b06cff; background: #b06cff;
  color: #000; cursor: pointer;
}
.alert-save:hover { background: #9a55ee; border-color: #9a55ee; }
.alert-cancel {
  font-family: inherit; font-size: 12px; font-weight: 700;
  letter-spacing: 0.07em; text-transform: uppercase;
  padding: 8px 20px; border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.12); background: transparent;
  color: #8a9ba8; cursor: pointer;
}
.alert-cancel:hover { color: #e8edf0; border-color: rgba(255,255,255,0.25); }
.alert-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99999;
  background: #0d1214;
  border-radius: 8px;
  padding: 12px 16px;
  font-family: "SF Mono","Fira Code",monospace;
  font-size: 12px;
  max-width: 320px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
  animation: toastIn 0.3s ease;
}
@keyframes toastIn { from { opacity:0; transform:translateY(12px); } to { opacity:1; transform:translateY(0); } }
.toast-title { font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 4px; }
.toast-body  { color: #8a9ba8; letter-spacing: 0.03em; line-height: 1.4; }

/* ── Signal History ── */
.history-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 7px 16px;
  border-radius: var(--radius-md);
  border: 1px solid #4d9fff;
  background: transparent;
  color: #4d9fff;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.history-btn:hover { background: #4d9fff; color: #000; }

.history-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.88);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.history-modal {
  background: #0d1214;
  border: 1px solid #4d9fff;
  border-radius: 12px;
  padding: 1.5rem;
  width: min(720px, 100%);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-sizing: border-box;
}
.history-modal h2 {
  font-size: 14px;
  font-weight: 700;
  color: #4d9fff;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0;
  flex-shrink: 0;
}
.history-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  flex-shrink: 0;
}
.history-toolbar select, .history-toolbar input {
  font-family: inherit;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  color: #e8edf0;
  outline: none;
  cursor: pointer;
}
.history-toolbar select:focus, .history-toolbar input:focus { border-color: #4d9fff; }
.history-clear {
  font-family: inherit; font-size: 11px; font-weight: 700;
  letter-spacing: 0.07em; text-transform: uppercase;
  padding: 6px 14px; border-radius: 6px;
  border: 1px solid rgba(255,77,77,0.4); background: transparent;
  color: #ff4d4d; cursor: pointer; margin-left: auto;
}
.history-clear:hover { background: rgba(255,77,77,0.1); }
.history-close {
  font-family: inherit; font-size: 11px; font-weight: 700;
  letter-spacing: 0.07em; text-transform: uppercase;
  padding: 6px 14px; border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.12); background: transparent;
  color: #8a9ba8; cursor: pointer;
}
.history-close:hover { color: #e8edf0; }
.history-scroll {
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}
.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.history-table th {
  text-align: left;
  font-size: 10px;
  font-weight: 700;
  color: #4a5a65;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 10px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  position: sticky;
  top: 0;
  background: #0d1214;
}
.history-table td {
  padding: 8px 10px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  color: #e8edf0;
  vertical-align: middle;
}
.history-table tr:hover td { background: rgba(255,255,255,0.03); }
.sig-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 5px;
  vertical-align: middle;
  position: relative;
  top: -1px;
}
.history-arrow { color: #4a5a65; margin: 0 6px; font-size: 11px; }
.history-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: #4a5a65;
  font-size: 13px;
}
.history-empty-icon { font-size: 28px; margin-bottom: 10px; }
.history-count {
  font-size: 11px;
  color: #4a5a65;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

/* ── PWA Mobile Optimizations ── */
@media (max-width: 480px) {
  .main { padding: 0.75rem; }
  .header-inner { height: 52px; padding: 0 0.75rem; }
  .logo-name { font-size: 14px; }
  .logo-tagline { display: none; }
  .controls-bar { flex-direction: column; align-items: stretch; gap: 8px; }
  .source-pills { display: none; }
  .controls-right { justify-content: space-between; }
  .controls-right select { flex: 1; font-size: 12px; padding: 8px 6px; }
  #refBtn { padding: 8px 12px; }
  .grid { grid-template-columns: 1fr; }
  .card { padding: 0.875rem; }
  .price { font-size: 18px; }
  .inds { grid-template-columns: repeat(3,1fr); gap: 4px; }
  .ind { padding: 4px 6px; }
  .ind-lbl { font-size: 9px; }
  .ind-val { font-size: 11px; }
  .tab-bar { overflow-x: auto; }
  .legend-bar { display: none; }
  .cat-hdr { font-size: 10px; margin: 1rem 0 0.5rem; }
  .card-foot { font-size: 10px; }
  .site-footer { font-size: 11px; padding: 0.85rem 1rem; }
}

/* PWA standalone mode */
@media (display-mode: standalone) {
  .site-header { padding-top: env(safe-area-inset-top); }
  .main { padding-bottom: calc(1rem + env(safe-area-inset-bottom)); }
}