/* StockPilot — responsive technology dashboard.
 *
 * Mobile-first, safe-area aware, no external font or image dependency.
 * Tables remain semantic tables and scroll horizontally on narrow screens.
 */
:root {
  color-scheme: dark;
  --bg: #060911;
  --bg-elevated: #0b1120;
  --surface: rgba(14, 22, 38, 0.78);
  --surface-solid: #0f1729;
  --surface-hover: #142039;
  --surface-bright: #182640;
  --fg: #eef4ff;
  --fg-soft: #c4d0e5;
  --muted: #7f8da7;
  --muted-bright: #9ba9c1;
  --line: rgba(132, 158, 196, 0.14);
  --line-strong: rgba(112, 194, 255, 0.28);
  --accent: #4ca6ff;
  --accent-2: #7668ff;
  --cyan: #5ce1e6;
  --green: #39d98a;
  --amber: #f7b955;
  --red: #ff6b81;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.34);
  --glow: 0 0 34px rgba(76, 166, 255, 0.16);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --tap-target: 44px;
  --font-ui: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont,
    "SF Pro Display", "Helvetica Neue", "PingFang TC", "Microsoft JhengHei",
    sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", Menlo,
    monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; min-height: 100%; }
html { background: var(--bg); }
body {
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 12% -10%, rgba(63, 118, 255, 0.20), transparent 31rem),
    radial-gradient(circle at 92% 10%, rgba(92, 225, 230, 0.09), transparent 28rem),
    linear-gradient(180deg, #080c16 0%, var(--bg) 44%, #070b14 100%);
  color: var(--fg);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}
body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 160, 220, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 160, 220, 0.025) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
  content: "";
  pointer-events: none;
}
button, input, select { font: inherit; }
button, input, select, dialog { -webkit-tap-highlight-color: transparent; }
button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ===== Authentication gate ===== */
.auth-view {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: max(1.5rem, env(safe-area-inset-top))
    max(1rem, env(safe-area-inset-right))
    max(1.5rem, env(safe-area-inset-bottom))
    max(1rem, env(safe-area-inset-left));
  isolation: isolate;
}
.auth-view::before,
.auth-view::after {
  position: absolute;
  z-index: -1;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  filter: blur(86px);
  content: "";
  opacity: 0.22;
}
.auth-view::before { top: -8rem; left: -8rem; background: var(--accent); }
.auth-view::after { right: -8rem; bottom: -8rem; background: var(--accent-2); }
.auth-card {
  position: relative;
  width: min(100%, 29rem);
  padding: 1.6rem;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 24px;
  background:
    linear-gradient(145deg, rgba(24, 38, 66, 0.90), rgba(10, 16, 29, 0.94));
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(26px) saturate(130%);
}
.auth-card::before {
  position: absolute;
  top: 0;
  left: 12%;
  width: 76%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  content: "";
  opacity: 0.8;
}
.auth-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 1rem;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.auth-brand::before {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--cyan), var(--accent-2));
  box-shadow: 0 0 14px rgba(92, 225, 230, 0.7);
  content: "";
}
.auth-card h1 {
  margin: 0 0 0.55rem;
  font-size: clamp(1.55rem, 5vw, 2.05rem);
  letter-spacing: -0.035em;
}
.auth-message {
  min-height: 2.8em;
  margin: 0 0 1.2rem;
  color: var(--muted-bright);
  font-size: 0.92rem;
  line-height: 1.55;
}
.auth-message.error { color: #ff9aaa; }
.auth-mode-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
  margin-bottom: 1.15rem;
  padding: 0.3rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(4, 8, 15, 0.46);
}
.auth-mode-tabs button,
.auth-form button {
  min-height: var(--tap-target);
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted-bright);
  cursor: pointer;
}
.auth-mode-tabs button.active {
  background: linear-gradient(135deg, rgba(76, 166, 255, 0.22), rgba(118, 104, 255, 0.2));
  box-shadow: inset 0 0 0 1px rgba(105, 187, 255, 0.3);
  color: var(--fg);
}
.auth-form { display: grid; gap: 0.85rem; }
.auth-form label {
  display: grid;
  gap: 0.4rem;
  color: var(--muted-bright);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.auth-form input,
.panel input,
.panel select {
  width: 100%;
  min-height: var(--tap-target);
  padding: 0.68rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(6, 11, 20, 0.78);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.025);
  color: var(--fg);
  font-size: 1rem;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}
.auth-form input:hover,
.panel input:hover,
.panel select:hover { border-color: rgba(132, 178, 235, 0.28); }
.auth-form input:focus,
.panel input:focus,
.panel select:focus {
  border-color: var(--accent);
  background: rgba(8, 15, 28, 0.96);
  box-shadow: 0 0 0 3px rgba(76, 166, 255, 0.11), 0 0 24px rgba(76, 166, 255, 0.08);
  outline: none;
}
.auth-form button[type="submit"] {
  margin-top: 0.35rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 28px rgba(76, 130, 255, 0.25);
  color: white;
  font-weight: 700;
}

/* ===== Application shell ===== */
.app-shell {
  width: min(100%, 1500px);
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0 auto;
  padding-top: env(safe-area-inset-top, 0);
  padding-bottom: env(safe-area-inset-bottom, 0);
}
header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
  align-items: center;
  padding: 1rem max(1rem, env(safe-area-inset-right)) 0.8rem
    max(1rem, env(safe-area-inset-left));
  border-bottom: 1px solid var(--line);
  background: rgba(6, 10, 18, 0.7);
  backdrop-filter: blur(20px) saturate(130%);
}
.brand-lockup {
  display: flex;
  gap: 0.72rem;
  align-items: center;
  min-width: 0;
}
.brand-mark {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(113, 209, 255, 0.45);
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(76, 166, 255, 0.22), rgba(118, 104, 255, 0.24));
  box-shadow: inset 0 0 18px rgba(92, 225, 230, 0.08), 0 0 22px rgba(76, 166, 255, 0.13);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: -0.06em;
}
.brand-copy { display: grid; min-width: 0; }
header h1 {
  margin: 0;
  overflow: hidden;
  color: var(--fg);
  font-size: 1.12rem;
  letter-spacing: -0.035em;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.brand-copy small {
  margin-top: 0.1rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}
.system-status {
  display: flex;
  gap: 0.48rem;
  align-items: center;
  min-width: 0;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(11, 18, 31, 0.64);
}
.status-dot,
.footer-dot,
.live-badge i {
  width: 0.45rem;
  height: 0.45rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px rgba(57, 217, 138, 0.65);
}
.system-status[data-state="loading"] .status-dot {
  background: var(--accent);
  box-shadow: 0 0 12px rgba(76, 166, 255, 0.75);
  animation: statusPulse 1.1s ease-in-out infinite;
}
.system-status[data-state="error"] .status-dot {
  background: var(--red);
  box-shadow: 0 0 12px rgba(255, 107, 129, 0.65);
}
@keyframes statusPulse {
  50% { opacity: 0.35; transform: scale(0.72); }
}
header .status {
  min-width: 0;
  overflow: hidden;
  color: var(--muted-bright);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.account-cluster {
  display: flex;
  gap: 0.48rem;
  align-items: center;
  min-width: 0;
}
.current-user {
  flex: 1 1 auto;
  overflow: hidden;
  color: var(--fg-soft);
  font-size: 0.76rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Buttons ===== */
header button, nav button, .panel button, .card-actions button,
.dialog-actions button {
  min-width: 44px;
  min-height: var(--tap-target);
  padding: 0.58rem 0.95rem;
  border: 1px solid transparent;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #5475ff);
  box-shadow: 0 8px 22px rgba(44, 115, 230, 0.18);
  color: #fff;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 700;
  transition: transform 160ms ease, filter 160ms ease, border-color 160ms ease,
    background 160ms ease, opacity 160ms ease;
}
button:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
button:active:not(:disabled) { transform: translateY(0) scale(0.985); }
button:disabled { cursor: wait; opacity: 0.58; }
button.is-busy { position: relative; color: transparent !important; }
button.is-busy::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1rem;
  height: 1rem;
  margin: -0.5rem;
  border: 2px solid rgba(255, 255, 255, 0.38);
  border-top-color: white;
  border-radius: 50%;
  content: "";
  animation: spin 700ms linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
header button.secondary,
.panel button.secondary,
.dialog-actions button.secondary {
  border-color: var(--line);
  background: rgba(19, 30, 51, 0.72);
  box-shadow: none;
  color: var(--fg-soft);
}
header button.compact { min-height: 38px; padding: 0.45rem 0.7rem; }
.primary-action { white-space: nowrap; }

/* ===== Navigation ===== */
nav {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  padding: 0.65rem max(1rem, env(safe-area-inset-right))
    0.8rem max(1rem, env(safe-area-inset-left));
  border-bottom: 1px solid var(--line);
  background: rgba(6, 10, 18, 0.54);
  scrollbar-width: none;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}
nav::-webkit-scrollbar { display: none; }
nav button {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  min-height: 40px;
  flex: 0 0 auto;
  padding: 0.48rem 0.78rem;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  color: var(--muted-bright);
  font-weight: 600;
}
nav button span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}
nav button:hover:not(:disabled) {
  background: rgba(29, 46, 76, 0.55);
  color: var(--fg);
}
nav button.active {
  border-color: rgba(88, 179, 255, 0.3);
  background: linear-gradient(135deg, rgba(76, 166, 255, 0.17), rgba(118, 104, 255, 0.13));
  box-shadow: inset 0 0 18px rgba(76, 166, 255, 0.04), 0 0 20px rgba(76, 166, 255, 0.06);
  color: var(--fg);
}
nav button.active span { color: var(--cyan); }
.swipe-hint {
  display: block;
  margin: 0;
  padding: 0.15rem max(1rem, env(safe-area-inset-right)) 0.3rem
    max(1rem, env(safe-area-inset-left));
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.64rem;
}

/* ===== Main panels ===== */
main {
  min-width: 0;
  padding: 0.85rem;
}
.panel {
  display: none;
  min-width: 0;
  min-height: 34rem;
  padding: max(1rem, env(safe-area-inset-top))
    max(1rem, env(safe-area-inset-right))
    max(1rem, env(safe-area-inset-bottom))
    max(1rem, env(safe-area-inset-left));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, rgba(15, 24, 42, 0.78), rgba(8, 13, 24, 0.72));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.022);
  opacity: 0;
  transform: translateY(7px);
  transition: opacity 180ms ease-out, transform 180ms ease-out;
  backdrop-filter: blur(18px) saturate(115%);
}
.panel.active { display: block; opacity: 1; transform: none; }
@keyframes panelFadeIn {
  from { opacity: 0; transform: translateY(7px); }
  to { opacity: 1; transform: translateY(0); }
}
.panel.is-rendered { animation: panelFadeIn 220ms ease-out; }
.panel-heading {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.panel-heading h2 {
  margin: 0.18rem 0 0;
  font-size: clamp(1.35rem, 5vw, 1.9rem);
  letter-spacing: -0.035em;
}
.panel-heading > .hint { max-width: 26rem; margin-top: 0.25rem; text-align: right; }
.eyebrow {
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.16em;
}
.hint { color: var(--muted-bright); font-size: 0.82rem; line-height: 1.55; }
.live-badge, .ai-badge {
  display: inline-flex;
  gap: 0.42rem;
  align-items: center;
  flex: 0 0 auto;
  padding: 0.35rem 0.6rem;
  border: 1px solid rgba(57, 217, 138, 0.22);
  border-radius: 999px;
  background: rgba(57, 217, 138, 0.07);
  color: #77eeb1;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}
.ai-badge {
  border-color: rgba(118, 104, 255, 0.3);
  background: rgba(118, 104, 255, 0.1);
  color: #b5adff;
}

/* ===== Controls ===== */
.command-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  align-items: end;
  margin: 0 0 1rem;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(7, 13, 24, 0.52);
}
.panel label {
  display: grid;
  gap: 0.35rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.025em;
}
.panel input, .panel select { flex: 1 1 12rem; max-width: 100%; }
.command-bar button { width: 100%; margin: 0; }
.save-state {
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  margin: -0.35rem 0 1rem;
  color: var(--muted-bright);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}
.save-state::before {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px rgba(57, 217, 138, 0.65);
  content: "";
}
.save-state.is-dirty { color: #ffd28b; }
.save-state.is-dirty::before {
  background: var(--amber);
  box-shadow: 0 0 12px rgba(245, 185, 78, 0.65);
}
.trade-form {
  display: grid;
  gap: 0.7rem;
  margin: 0 0 1rem;
  padding: 1rem;
  border: 1px solid rgba(76, 166, 255, 0.32);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(24, 42, 72, 0.7), rgba(10, 18, 33, 0.78));
  box-shadow: var(--glow);
}
.trade-form[hidden] { display: none; }
.trade-form h3 { margin: 0 0 0.2rem; letter-spacing: -0.02em; }
.trade-form-actions, .holding-actions, .dialog-actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}
.trade-form-actions button, .holding-actions button { margin: 0; }
.holding-actions button {
  min-height: 34px;
  padding: 0.34rem 0.58rem;
  border-radius: 8px;
  box-shadow: none;
  white-space: nowrap;
}
.holding-actions .trade-buy {
  border-color: rgba(57, 217, 138, 0.28);
  background: rgba(57, 217, 138, 0.12);
  color: #76ecaf;
}
.holding-actions .trade-sell {
  border-color: rgba(247, 185, 85, 0.28);
  background: rgba(247, 185, 85, 0.12);
  color: #ffd084;
}
.holding-actions button.rm {
  border-color: rgba(255, 107, 129, 0.2);
  background: rgba(255, 107, 129, 0.08);
  color: #ff9bab;
}

/* ===== KPI and detail cards rendered by the API ===== */
.view-title {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  justify-content: space-between;
  margin: 0.25rem 0 1rem;
}
.view-title h1, #symbol-html h1 {
  margin: 0;
  font-size: clamp(1.6rem, 6vw, 2.4rem);
  letter-spacing: -0.055em;
}
.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
  margin-bottom: 1rem;
}
.metric-card {
  position: relative;
  min-width: 0;
  padding: 0.85rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, rgba(22, 35, 59, 0.72), rgba(9, 16, 29, 0.7));
}
.metric-card::after {
  position: absolute;
  top: 0;
  right: 0;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: rgba(76, 166, 255, 0.13);
  filter: blur(20px);
  content: "";
}
.metric-label {
  display: block;
  overflow: hidden;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.61rem;
  letter-spacing: 0.08em;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}
.metric-value {
  display: block;
  margin-top: 0.45rem;
  overflow: hidden;
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 4vw, 1.45rem);
  font-weight: 750;
  letter-spacing: -0.035em;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.metric-card.accent .metric-value { color: var(--cyan); }
.metric-card.positive .metric-value { color: var(--green); }
.metric-card.negative .metric-value { color: var(--red); }
.provenance {
  margin: -0.35rem 0 1rem;
  overflow: hidden;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.provenance code { color: var(--muted-bright); }
.factor-list {
  display: grid;
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.factor-list li {
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(13, 22, 38, 0.6);
  color: var(--fg-soft);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* ===== Tables ===== */
.table-scroll {
  display: block;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  margin-top: 0.55rem;
  border-radius: var(--radius-md);
  scrollbar-color: rgba(100, 145, 206, 0.35) transparent;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.portfolio-table-scroll {
  position: relative;
  isolation: isolate;
  overscroll-behavior-x: contain;
  touch-action: pan-x pan-y;
}
.overview-table-scroll {
  position: relative;
  isolation: isolate;
  margin-top: 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  overscroll-behavior-x: contain;
  touch-action: pan-x pan-y;
}
.overview-table-shell {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  width: 100%;
  min-width: 0;
  margin-top: 0.55rem;
}
.table-scroll::-webkit-scrollbar { height: 6px; }
.table-scroll::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(100, 145, 206, 0.32);
}
.table-pan-hint {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.63rem;
}
.table-scroll table { width: 100%; }
.overview-details-table, #watchlist-html table, #symbol-html table,
#backtest-html table, .advice-table, #holdings-table, .data-table {
  min-width: 520px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-spacing: 0;
  border-collapse: separate;
  border-radius: var(--radius-md);
  background: rgba(7, 12, 22, 0.52);
}
.overview-symbol-table {
  position: relative;
  z-index: 2;
  width: 86px;
  min-width: 86px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-spacing: 0;
  border-collapse: separate;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  background: #111c30;
  box-shadow: 10px 0 18px -16px rgba(0, 0, 0, 0.95);
  table-layout: fixed;
}
.overview-details-table {
  min-width: 520px;
  border-left: 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
#holdings-table { min-width: 1080px; }
.advice-table { min-width: 1020px; }
.portfolio-table-scroll #holdings-table,
.portfolio-table-scroll .advice-table {
  overflow: visible;
}
#overview-html th, #overview-html td,
#watchlist-html th, #watchlist-html td,
#symbol-html th, #symbol-html td,
#backtest-html th, #backtest-html td,
.advice-table th, .advice-table td,
#holdings-table th, #holdings-table td,
.data-table th, .data-table td {
  padding: 0.76rem 0.8rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  color: var(--fg-soft);
  font-size: 0.78rem;
  text-align: left;
  vertical-align: middle;
  white-space: nowrap;
}
#overview-html th, #watchlist-html th, #symbol-html th, #backtest-html th,
.advice-table th, #holdings-table th, .data-table th {
  background: rgba(19, 31, 53, 0.94);
  color: var(--muted-bright);
  font-family: var(--font-mono);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}
#overview-html tbody tr:last-child td,
#watchlist-html tbody tr:last-child td,
.advice-table tbody tr:last-child td,
#holdings-table tbody tr:last-child td { border-bottom: 0; }
#overview-html tbody tr td,
#watchlist-html tbody tr td,
.advice-table tbody tr td,
#holdings-table tbody tr td {
  transition: background 140ms ease, color 140ms ease;
}
#overview-html tbody tr:hover td,
#watchlist-html tbody tr:hover td,
#holdings-table tbody tr:hover td,
.advice-table tbody tr:hover td { background: rgba(28, 45, 76, 0.54); color: var(--fg); }
#holdings-table thead th, .advice-table thead th {
  position: sticky;
  z-index: 2;
  top: 0;
}
#holdings-table th:first-child, #holdings-table td:first-child,
.advice-table th:first-child, .advice-table td:first-child {
  position: -webkit-sticky;
  position: sticky;
  z-index: 1;
  left: 0;
  inset-inline-start: 0;
  width: 86px;
  min-width: 86px;
  background: #111c30;
  background-clip: padding-box;
  box-shadow: 10px 0 18px -16px rgba(0, 0, 0, 0.95);
  color: var(--fg);
  font-family: var(--font-mono);
  font-weight: 750;
}
.overview-symbol-table th,
.overview-symbol-table td {
  width: 86px;
  min-width: 86px;
  background: #111c30;
  color: var(--fg);
  font-family: var(--font-mono);
  font-weight: 750;
}
.overview-symbol-table th {
  background: rgba(19, 31, 53, 0.98);
}
#holdings-table thead th:first-child,
.advice-table thead th:first-child { z-index: 3; }
.overview-symbol-table tbody tr:hover td {
  background: #182a47;
}
.advice-table th:nth-child(7), .advice-table td:nth-child(7) {
  min-width: 310px;
  line-height: 1.5;
  white-space: normal;
}
#holdings-table td.pnl-positive, .advice-table td.pnl-positive {
  color: var(--green);
  font-family: var(--font-mono);
  font-weight: 700;
}
#holdings-table td.pnl-negative, .advice-table td.pnl-negative {
  color: var(--red);
  font-family: var(--font-mono);
  font-weight: 700;
}
.table-card-list { display: none; }

/* ===== Backtest / footer ===== */
#backtest-json {
  max-height: 220px;
  overflow: auto;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(3, 7, 13, 0.78);
  color: #a9c4f0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.55;
  white-space: pre;
}
footer {
  padding: 1rem max(1rem, env(safe-area-inset-right))
    max(1rem, env(safe-area-inset-bottom))
    max(1rem, env(safe-area-inset-left));
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-align: right;
}
footer small { display: inline-flex; gap: 0.5rem; align-items: center; }
.footer-dot { width: 0.35rem; height: 0.35rem; }

/* ===== Toasts and confirmation ===== */
.toast-stack {
  position: fixed;
  z-index: 90;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  display: grid;
  width: min(calc(100vw - 2rem), 23rem);
  gap: 0.55rem;
  pointer-events: none;
}
.toast {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.65rem;
  align-items: center;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: rgba(13, 22, 38, 0.94);
  box-shadow: 0 16px 42px rgba(0, 0, 0, 0.36);
  color: var(--fg-soft);
  font-size: 0.78rem;
  line-height: 1.4;
  animation: toastIn 220ms ease-out;
  backdrop-filter: blur(18px);
}
.toast::before {
  display: grid;
  width: 1.55rem;
  height: 1.55rem;
  place-items: center;
  border-radius: 50%;
  background: rgba(57, 217, 138, 0.12);
  color: var(--green);
  content: "✓";
  font-weight: 800;
}
.toast.error::before {
  background: rgba(255, 107, 129, 0.12);
  color: var(--red);
  content: "!";
}
.toast.leaving { animation: toastOut 180ms ease-in forwards; }
@keyframes toastIn { from { opacity: 0; transform: translateY(10px) scale(0.98); } }
@keyframes toastOut { to { opacity: 0; transform: translateY(8px) scale(0.98); } }
.confirm-dialog {
  width: min(calc(100vw - 2rem), 25rem);
  padding: 1.25rem;
  border: 1px solid rgba(255, 107, 129, 0.27);
  border-radius: 18px;
  background: linear-gradient(145deg, #152038, #0b111e);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.56);
  color: var(--fg);
}
.confirm-dialog::backdrop {
  background: rgba(2, 5, 10, 0.75);
  backdrop-filter: blur(7px);
}
.dialog-icon {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border: 1px solid rgba(255, 107, 129, 0.28);
  border-radius: 11px;
  background: rgba(255, 107, 129, 0.1);
  color: var(--red);
  font-family: var(--font-mono);
  font-weight: 800;
}
.confirm-dialog h3 { margin: 0.85rem 0 0.35rem; }
.confirm-dialog p { margin: 0 0 1.1rem; color: var(--muted-bright); line-height: 1.5; }
.dialog-actions { justify-content: flex-end; }
.dialog-actions button.danger {
  background: linear-gradient(135deg, #ed526e, #bd3657);
  box-shadow: 0 8px 20px rgba(237, 82, 110, 0.18);
}

/* ===== Tablet ===== */
@media (min-width: 641px) {
  header {
    grid-template-columns: minmax(13rem, 1fr) minmax(15rem, auto);
    padding: 1rem max(1.35rem, env(safe-area-inset-right)) 0.9rem
      max(1.35rem, env(safe-area-inset-left));
  }
  .system-status { grid-column: 1 / -1; grid-row: 2; }
  .account-cluster { justify-content: flex-end; }
  nav {
    padding-right: max(1.35rem, env(safe-area-inset-right));
    padding-left: max(1.35rem, env(safe-area-inset-left));
  }
  main { padding: 1.1rem 1.25rem; }
  .panel {
    padding: max(1.35rem, env(safe-area-inset-top))
      max(1.35rem, env(safe-area-inset-right))
      max(1.35rem, env(safe-area-inset-bottom))
      max(1.35rem, env(safe-area-inset-left));
  }
  .swipe-hint { display: none; }
  .command-bar { grid-template-columns: minmax(12rem, 1fr) auto; }
  #holding-form.command-bar { grid-template-columns: repeat(3, minmax(8rem, 1fr)) auto; }
  .backtest-controls { grid-template-columns: repeat(2, minmax(9rem, 1fr)); }
  .backtest-controls button { grid-column: 1 / -1; }
  .trade-form { grid-template-columns: repeat(2, minmax(10rem, 1fr)); }
  .trade-form h3, .trade-form-actions { grid-column: 1 / -1; }
  .metric-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .metric-card { padding: 1rem; }
}

/* ===== Desktop ===== */
@media (min-width: 961px) {
  header {
    grid-template-columns: minmax(14rem, 1fr) minmax(20rem, 0.8fr) auto;
    padding: 1.05rem 1.7rem 0.9rem;
  }
  .system-status { grid-column: auto; grid-row: auto; }
  nav { padding: 0.7rem 1.7rem 0.85rem; }
  main { padding: 1.25rem 1.5rem; }
  .panel { padding: 1.55rem; }
  .panel-heading { align-items: center; }
  .command-bar { grid-template-columns: minmax(15rem, 1fr) auto; }
  .backtest-controls {
    grid-template-columns: 0.7fr repeat(3, minmax(9rem, 1fr)) auto;
  }
  .backtest-controls button { grid-column: auto; width: auto; }
  .command-bar button { width: auto; }
  .table-pan-hint { display: none; }
  footer { padding-right: 1.7rem; padding-left: 1.7rem; }
}

/* ===== Forced phone preview (QA contract) ===== */
.app-shell.force-mobile .swipe-hint { display: block; }
.app-shell.force-mobile .table-scroll { display: block; }
.app-shell.force-mobile nav { overflow-x: auto; }

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
  .panel { opacity: 1; transform: none; }
}