/* ============================================================
   Alpaca Paper Comp — trading-terminal dark
   ============================================================ */

:root {
  --bg:          #0a0e14;
  --bg-elev:     #11161f;
  --bg-row:      #0f141c;
  --bg-row-hov:  #161d28;
  --bg-row-open: #131a25;
  --border:      #1f2733;
  --border-soft: #161d28;
  --text:        #d9e1ec;
  --text-dim:    #6b7689;
  --text-faint:  #475063;
  --accent:      #5ee7a6;       /* primary green */
  --pos:         #22d57b;
  --pos-soft:    #133e2a;
  --neg:         #ff5468;
  --neg-soft:    #3b121a;
  --warn:        #f5c451;
  --rank-gold:   #f0c64a;
  --rank-silver: #c2c8d1;
  --rank-bronze: #c98a4b;
  --mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  background:
    radial-gradient(900px 600px at 20% -10%, rgba(94,231,166,0.06), transparent 60%),
    radial-gradient(900px 600px at 100% 10%, rgba(94,231,166,0.04), transparent 60%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* subtle CRT scanlines (very faint, decorative) */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.012) 0px,
    rgba(255,255,255,0.012) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }

/* ------------------------------ topbar ------------------------------ */
.topbar {
  border-bottom: 1px solid var(--border);
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(6px);
  position: sticky; top: 0;
  z-index: 10;
}
.topbar .wrap {
  height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 0.05em;
  font-size: 14px;
}
.brand-mark { color: var(--accent); font-size: 16px; line-height: 1; }
.brand-name { color: var(--text); }
.brand-dim { color: var(--text-dim); font-weight: 500; }

.status {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}
.live-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--text-faint);
  box-shadow: 0 0 0 0 transparent;
}
.live-dot.on { background: var(--pos); animation: pulse 2s infinite; }
.live-dot.err { background: var(--neg); }
.live-label.on { color: var(--pos); }
.live-label.err { color: var(--neg); }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34,213,123,0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(34,213,123,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,213,123,0); }
}

/* ------------------------------ buttons ------------------------------ */
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--mono);
  font-weight: 600;
  letter-spacing: 0.08em;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: background 120ms, border-color 120ms, transform 80ms, color 120ms;
  white-space: nowrap;
}
.cta:active { transform: translateY(1px); }
.cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.cta-mark { color: var(--accent); }

.cta-sm {
  font-size: 11px;
  padding: 7px 12px;
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.cta-sm:hover { border-color: var(--accent); color: var(--accent); }

.cta-lg {
  font-size: 13px;
  padding: 14px 22px;
  background: var(--accent);
  color: #0a0e14;
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(94, 231, 166, 0.25);
}
.cta-lg .cta-mark { color: #0a0e14; }
.cta-lg:hover { background: #6df0b3; box-shadow: 0 0 32px rgba(94, 231, 166, 0.4); }

.cta-primary {
  font-size: 12px;
  padding: 11px 18px;
  background: var(--accent);
  color: #0a0e14;
  border-color: var(--accent);
}
.cta-primary:hover { background: #6df0b3; }
.cta-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.cta-ghost {
  font-size: 12px;
  padding: 11px 18px;
  background: transparent;
  color: var(--text-dim);
  border-color: var(--border);
}
.cta-ghost:hover { color: var(--text); border-color: var(--text-dim); }

.cta-secondary {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
}
.cta-secondary:hover { color: var(--accent); border-bottom-color: var(--accent); }

@media (max-width: 540px) {
  .cta-sm { display: none; }
}

/* ------------------------------ hero ------------------------------ */
.hero { padding: 56px 0 32px; }
.hero h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}
.hero .sub {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 640px;
  margin: 0;
}
.join-cta {
  text-align: center;
  padding: 48px 20px 56px;
  margin-bottom: 24px;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.join-cta h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
  color: var(--text);
  font-family: var(--sans);
  text-transform: none;
}
.join-cta p {
  color: var(--text-dim);
  font-size: 15px;
  margin: 0 auto 24px;
  max-width: 440px;
}
.join-cta-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

/* ------------------------------ card ------------------------------ */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 24px;
  overflow: hidden;
}

/* ------------------------------ stats ------------------------------ */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stat {
  padding: 18px 20px;
  border-right: 1px solid var(--border-soft);
}
.stat:last-child { border-right: none; }
.stat-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  margin-bottom: 6px;
}
.stat-value {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
}
.stat-value.pos { color: var(--pos); }
.stat-value.neg { color: var(--neg); }
@media (max-width: 720px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--border-soft); }
}

/* ------------------------------ champion ------------------------------ */
.champion {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 28px 0 32px;
  margin-bottom: 4px;
}
.champion-frame {
  position: relative;
  width: 220px;
  height: 280px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  box-shadow:
    0 0 0 4px rgba(240, 198, 74, 0.08),
    0 0 30px rgba(240, 198, 74, 0.18),
    0 8px 24px rgba(0, 0, 0, 0.45);
}
.champion-frame::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: 10px;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(240, 198, 74, 0.25);
  z-index: 2;
}
.champion-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: contrast(1.05) saturate(1.05);
}
.champion-meta { text-align: center; }
.champion-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--rank-gold);
  opacity: 0.85;
  margin-bottom: 6px;
}
.champion-name {
  font-family: var(--sans);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  line-height: 1.1;
}
.champion-roi {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  margin-top: 4px;
  min-height: 1.2em;
  color: var(--text-dim);
}
.champion-roi.pos { color: var(--pos); }
.champion-roi.neg { color: var(--neg); }
@media (max-width: 540px) {
  .champion-frame { width: 180px; height: 230px; }
  .champion-name { font-size: 24px; }
}

/* ------------------------------ board card ------------------------------ */
.board-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border-soft);
}
.board-head h2, .how h2 {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--text-dim);
}
.board-meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-faint);
}

.table-wrap { overflow-x: auto; }
table.board {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--sans);
}
table.board th {
  text-align: left;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  padding: 14px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}
table.board th.col-num { text-align: right; }
table.board th.col-rank { width: 80px; padding-left: 20px; }
table.board th.col-caret { width: 30px; }

table.board td {
  padding: 18px 14px;
  border-bottom: 1px solid var(--border-soft);
  vertical-align: middle;
  font-size: 15px;
  line-height: 1.4;
  height: 64px;
}
table.board tr.row { cursor: pointer; transition: background 120ms; }
table.board tr.row:hover { background: var(--bg-row-hov); }
table.board tr.row.open { background: var(--bg-row-open); }
table.board tr.detail-row > td { padding: 0; background: var(--bg-row-open); border-bottom: 1px solid var(--border-soft); }

.col-rank-cell {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 700;
  text-align: left;
  padding-left: 20px;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.4;
  white-space: nowrap;
  vertical-align: middle;
}
.col-rank-cell .rank-hash {
  color: var(--text-faint);
  font-weight: 500;
  margin-right: 2px;
  font-size: 0.75em;
}
.col-rank-cell.r1 { color: var(--rank-gold); text-shadow: 0 0 18px rgba(240, 198, 74, 0.35); }
.col-rank-cell.r1 .rank-hash { color: rgba(240, 198, 74, 0.55); }
.col-rank-cell.r2 { color: var(--rank-silver); }
.col-rank-cell.r2 .rank-hash { color: rgba(194, 200, 209, 0.55); }
.col-rank-cell.r3 { color: var(--rank-bronze); }
.col-rank-cell.r3 .rank-hash { color: rgba(201, 138, 75, 0.55); }
.col-rank-cell.muted { color: var(--text-faint); }

.handle-cell {
  font-weight: 600;
  color: var(--text);
  font-size: 16px;
  vertical-align: middle;
  white-space: nowrap;
}
.handle-cell .me-pill { margin-left: 8px; vertical-align: middle; }
.handle-cell .me-pill {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 3px;
  padding: 1px 5px;
}

.num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
  vertical-align: middle;
  font-size: 15px;
}
.num.pos { color: var(--pos); }
.num.neg { color: var(--neg); }
.num.muted { color: var(--text-faint); }

.col-caret-cell {
  text-align: center;
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 14px;
  transition: transform 200ms;
}
tr.row.open .col-caret-cell { transform: rotate(90deg); color: var(--accent); }

.empty {
  text-align: center;
  padding: 32px;
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ------------------------------ detail panel ------------------------------ */
.detail {
  padding: 0 20px 20px;
  border-top: 1px dashed var(--border);
  animation: slidedown 220ms ease;
}
@keyframes slidedown {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: none; }
}
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding-top: 18px;
}
@media (max-width: 720px) {
  .detail-grid { grid-template-columns: 1fr; }
}
.detail h3 {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  font-weight: 600;
}

.positions {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  font-family: var(--mono);
}
.positions th, .positions td {
  padding: 7px 10px;
  text-align: right;
  border-bottom: 1px solid var(--border-soft);
}
.positions th {
  color: var(--text-faint);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
}
.positions th:first-child, .positions td:first-child {
  text-align: left;
}
.positions .empty-positions {
  color: var(--text-faint);
  text-align: center;
  padding: 16px;
  font-size: 12px;
}

.chart-box {
  position: relative;
  height: 220px;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  padding: 12px;
}
.chart-box canvas { width: 100% !important; height: 100% !important; }
.chart-empty {
  display: flex; align-items: center; justify-content: center;
  height: 100%;
  color: var(--text-faint);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

/* ------------------------------ how ------------------------------ */
.how { padding: 22px 24px 24px; }
.how ol {
  margin: 14px 0 0;
  padding-left: 22px;
  color: var(--text);
  font-size: 14px;
}
.how li {
  padding: 5px 0;
  color: var(--text);
}
.how li::marker {
  color: var(--accent);
  font-family: var(--mono);
  font-weight: 600;
}

/* ------------------------------ footer ------------------------------ */
.footer {
  padding: 32px 0 48px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  text-align: center;
}
.footer .sep { margin: 0 8px; opacity: 0.5; }

/* ------------------------------ modal ------------------------------ */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(4, 7, 12, 0.78);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
  animation: fadein 160ms ease;
}
.modal-backdrop[hidden] { display: none; }
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

.modal {
  position: relative;
  width: 100%;
  max-width: 460px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 28px 22px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(94, 231, 166, 0.05);
  animation: pop 200ms ease;
}
@keyframes pop {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}

.modal-close {
  position: absolute;
  top: 14px; right: 16px;
  background: none;
  border: none;
  color: var(--text-faint);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color 120ms, background 120ms;
}
.modal-close:hover { color: var(--text); background: var(--bg-row-hov); }

.modal-eyebrow {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 8px;
}
.modal h2 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
.modal-sub {
  color: var(--text-dim);
  font-size: 13px;
  margin: 0 0 20px;
  line-height: 1.55;
}

.modal-form { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.req { color: var(--neg); }
.field input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 12px;
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--text);
  transition: border-color 120ms, background 120ms;
}
.field input:focus {
  outline: none;
  border-color: var(--accent);
  background: #0c1118;
}
.field input::placeholder { color: var(--text-faint); }
.field-hint {
  font-family: var(--sans);
  font-size: 11.5px;
  color: var(--text-faint);
  line-height: 1.4;
}
.field-hint a { color: var(--text-dim); }
.field-hint a:hover { color: var(--accent); }

.form-msg {
  font-family: var(--mono);
  font-size: 12px;
  padding: 10px 12px;
  border-radius: 6px;
  letter-spacing: 0.02em;
}
.form-msg.err { background: var(--neg-soft); color: var(--neg); border: 1px solid rgba(255, 84, 104, 0.3); }
.form-msg.info { background: rgba(94, 231, 166, 0.08); color: var(--accent); border: 1px solid rgba(94, 231, 166, 0.2); }

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 6px;
}

/* code-display + prompt block (device-code flow) */
.modal-stage[hidden] { display: none; }

.code-display {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 10px;
}
.code-box {
  flex: 1;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: 0.08em;
  text-align: center;
  padding: 16px 18px;
  background: var(--bg);
  border: 1px solid var(--accent);
  border-radius: 10px;
  color: var(--accent);
  box-shadow: 0 0 24px rgba(94, 231, 166, 0.18);
  user-select: all;
}
.copy-btn {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 10px 14px;
  background: transparent;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: color 120ms, border-color 120ms, background 120ms;
  white-space: nowrap;
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.copy-btn.copied { color: var(--pos); border-color: var(--pos); }
.copy-icon { font-size: 14px; }
.code-meta {
  display: flex; justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.code-meta strong { color: var(--text-dim); font-weight: 600; }
.code-meta strong#code-countdown { color: var(--accent); }

.prompt-block {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px 44px;
  margin-bottom: 18px;
  overflow: hidden;
}
.prompt-block pre {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 260px;
  overflow-y: auto;
}
.copy-btn-inline {
  position: absolute;
  bottom: 8px;
  right: 8px;
}

.waiting {
  display: flex; align-items: center; justify-content: center;
  gap: 10px;
  padding: 14px;
  background: rgba(94, 231, 166, 0.04);
  border: 1px dashed rgba(94, 231, 166, 0.25);
  border-radius: 8px;
  margin-bottom: 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}
.waiting-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.6s infinite;
}
.waiting-text { color: var(--text); }

/* spinner */
.btn-spin {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid currentColor;
  border-bottom-color: transparent;
  border-radius: 50%;
  animation: spin 600ms linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* success state */
.modal-success {
  text-align: center;
  padding: 8px 4px 4px;
}
.modal-success .check {
  width: 56px; height: 56px;
  margin: 8px auto 18px;
  border-radius: 50%;
  background: rgba(34, 213, 123, 0.12);
  border: 1px solid rgba(34, 213, 123, 0.4);
  color: var(--pos);
  font-size: 30px;
  font-weight: bold;
  display: flex; align-items: center; justify-content: center;
}
.modal-success h3 {
  margin: 0 0 8px;
  font-size: 20px;
  color: var(--text);
}
.modal-success p {
  color: var(--text-dim);
  margin: 0 0 20px;
}

/* ------------------------------ responsive ------------------------------ */
@media (max-width: 720px) {
  .hide-sm { display: none; }
  .wrap { padding: 0 16px; }
  .topbar .wrap { padding: 0 16px; }
  table.board td, table.board th { padding: 10px 8px; }
  table.board th.col-rank, .col-rank-cell { padding-left: 12px; }
}
@media (max-width: 540px) {
  .hide-md { display: none; }
}