:root {
  --bg: #16241C;
  --panel: #1F3327;
  --panel-line: rgba(240, 237, 228, 0.12);
  --ink: #F0EDE4;
  --ink-dim: #9FB0A2;
  --up: #E8B84B;
  --down: #D2704A;
  --radius: 10px;
  --font-display: "Space Grotesk", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --font-body: "Inter", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(circle at 15% 10%, rgba(240,237,228,0.03), transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(240,237,228,0.03), transparent 40%);
  color: var(--ink);
  font-family: var(--font-body);
  min-height: 100vh;
  padding: 32px 20px 60px;
}

.board {
  max-width: 880px;
  margin: 0 auto;
}

/* Loader */
.loader-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: var(--bg);
  z-index: 50;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.loader-overlay--hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.spinner {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 3px solid var(--panel-line);
  border-top-color: var(--up);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .spinner { animation: none; border-top-color: var(--panel-line); }
}

.loader-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-dim);
  letter-spacing: 0.02em;
}

/* Nav */
.nav {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-decoration: none;
  color: var(--ink-dim);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.nav__link:hover { color: var(--ink); }
.nav__link--active {
  color: var(--ink);
  border-color: var(--panel-line);
  background: var(--panel);
}
.nav__link:focus-visible {
  outline: 2px solid var(--up);
  outline-offset: 2px;
}

/* Header */
.board__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  border-bottom: 1px solid var(--panel-line);
  padding-bottom: 20px;
  margin-bottom: 32px;
}

.brand { display: flex; flex-direction: column; gap: 4px; }

.brand__eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-dim);
}

.header__right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.updated {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-dim);
}

.refresh-btn {
  background: transparent;
  border: 1px solid var(--panel-line);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 7px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.refresh-btn:hover { border-color: rgba(240,237,228,0.4); background: rgba(240,237,228,0.04); }
.refresh-btn:focus-visible {
  outline: 2px solid var(--up);
  outline-offset: 2px;
}

/* Hero */
.hero {
  text-align: center;
  padding: 40px 20px 48px;
  margin-bottom: 40px;
  border: 1px solid var(--panel-line);
  border-radius: var(--radius);
  background: var(--panel);
}

.hero__arrow {
  font-size: 1.3rem;
  color: var(--ink-dim);
  margin-bottom: 4px;
}
.hero__arrow.is-up { color: var(--up); }
.hero__arrow.is-down { color: var(--down); }

.hero__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 12vw, 5rem);
  line-height: 1;
}
.hero__value.is-up { color: var(--up); }
.hero__value.is-down { color: var(--down); }

.hero__caption {
  font-family: var(--font-mono);
  color: var(--ink-dim);
  font-size: 0.9rem;
  margin-top: 10px;
}

.hero__tier {
  display: inline-block;
  margin-top: 16px;
  padding: 5px 14px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border: 1px solid rgba(232, 184, 75, 0.4);
  color: var(--up);
  background: rgba(232, 184, 75, 0.08);
}

/* Hero stats grid (paper trading) */
.hero--stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 24px;
  text-align: left;
  padding: 28px 32px;
}

.stat { display: flex; flex-direction: column; gap: 6px; }

.stat__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
}
.stat__value.is-up { color: var(--up); }
.stat__value.is-down { color: var(--down); }

/* Setup form */
.setup-form {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.setup-form__prefix {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--ink-dim);
}

/* Inputs & buttons */
.input {
  background: var(--bg);
  border: 1px solid var(--panel-line);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 9px 12px;
  border-radius: 6px;
}
.input:focus-visible {
  outline: 2px solid var(--up);
  outline-offset: 1px;
}
.input--qty { width: 80px; }

.btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity 0.15s ease;
}
.btn:hover { opacity: 0.85; }
.btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.btn--primary { background: var(--ink); color: var(--bg); }
.btn--up { background: rgba(232, 184, 75, 0.15); color: var(--up); border-color: rgba(232, 184, 75, 0.4); }
.btn--down { background: rgba(210, 112, 74, 0.15); color: var(--down); border-color: rgba(210, 112, 74, 0.4); }

.trade-form {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.trade-form__price {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ink-dim);
  min-width: 80px;
}

.form-error {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--down);
}

/* Holdings table */
.table-wrap { overflow-x: auto; }

.holdings-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.holdings-table th {
  text-align: left;
  color: var(--ink-dim);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 8px 10px;
  border-bottom: 1px solid var(--panel-line);
}

.holdings-table td {
  padding: 10px;
  border-bottom: 1px solid var(--panel-line);
}

.holdings-table td.is-up { color: var(--up); }
.holdings-table td.is-down { color: var(--down); }

.empty-note {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-dim);
  padding: 16px 4px;
}

/* Section labels */
.section { margin-bottom: 40px; }

.section__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 14px;
}

.legend {
  display: flex;
  gap: 12px;
  font-family: var(--font-mono);
  text-transform: none;
  font-size: 0.75rem;
  letter-spacing: 0;
}

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 4px;
}
.dot--up { background: var(--up); }
.dot--down { background: var(--down); }

/* Flap grid */
.flap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
}

.flap-card {
  background: var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 8px;
  padding: 14px 12px;
  text-align: center;
  transform-origin: top center;
  animation: flap-in 0.5s ease backwards;
}

.flap-card__symbol {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--ink-dim);
  margin-bottom: 6px;
}

.flap-card__price {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.flap-card__change {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
}
.flap-card__change.is-up { color: var(--up); }
.flap-card__change.is-down { color: var(--down); }

@keyframes flap-in {
  from { opacity: 0; transform: rotateX(90deg); }
  to { opacity: 1; transform: rotateX(0deg); }
}

@media (prefers-reduced-motion: reduce) {
  .flap-card { animation: none; }
}

/* Ledger */
.ledger {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--panel-line);
}

.ledger__row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--panel-line);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  flex-wrap: wrap;
}

.ledger__date { color: var(--ink-dim); min-width: 90px; }
.ledger__move.is-up { color: var(--up); }
.ledger__move.is-down { color: var(--down); }
.ledger__movers { color: var(--ink-dim); flex: 1; text-align: right; min-width: 200px; }

/* Footer */
.board__footer {
  text-align: center;
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding-top: 24px;
}

/* Mobile */
@media (max-width: 480px) {
  .board__header { flex-direction: column; align-items: flex-start; }
  .header__right { width: 100%; justify-content: space-between; }
  .ledger__row { flex-direction: column; gap: 4px; }
  .ledger__movers { text-align: left; }
}