/* KmikeyM web — hand-written CSS. Color scheme lives entirely in CSS variables. */

:root {
  /* Brand + accents (corporate navy, lighthearted coral/sun) */
  --brand: #22346e;
  --brand-ink: #ffffff;
  --accent: #ff6b57;
  --accent-2: #ffd166;

  /* Semantic */
  --up: #12a67a;
  --down: #e5484d;

  /* Surfaces + text */
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-2: #eef2fa;
  --text: #1b2430;
  --muted: #667085;
  --border: #e2e8f2;

  /* Shape */
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(17, 24, 39, .04), 0 8px 24px rgba(17, 24, 39, .06);
  --shadow-sm: 0 1px 2px rgba(17, 24, 39, .06);

  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --maxw: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand: #16223f;
    --accent: #ff7d6b;
    --accent-2: #ffd479;
    --up: #34d399;
    --down: #f87171;
    --bg: #0f141c;
    --surface: #161d28;
    --surface-2: #1d2634;
    --text: #e7ecf3;
    --muted: #94a2b5;
    --border: #26303f;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
@media (prefers-color-scheme: dark) { a { color: var(--accent); } }

code { background: var(--surface-2); padding: .1em .4em; border-radius: 6px; font-size: .9em; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- Header / nav ---------- */
.site-header {
  background: var(--brand);
  color: var(--brand-ink);
  position: sticky; top: 0; z-index: 10;
  box-shadow: var(--shadow-sm);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 62px; }
.brand { color: var(--brand-ink); font-weight: 800; font-size: 1.2rem; letter-spacing: -.02em; }
.brand:hover { text-decoration: none; opacity: .95; }
.brand-mark { margin-right: 4px; }
.brand-tm { font-size: .6em; vertical-align: super; opacity: .7; }
.site-nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.nav-link {
  color: #dfe6f5; padding: 8px 12px; border-radius: var(--radius-sm); font-weight: 600; font-size: .95rem;
}
.nav-link:hover { background: rgba(255, 255, 255, .12); text-decoration: none; color: #fff; }
.nav-link.is-active { background: rgba(255, 255, 255, .16); color: #fff; }
.nav-user { color: #cdd7ee; font-size: .9rem; padding: 0 6px; }

.main { padding: 28px 20px 60px; min-height: 60vh; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid transparent; border-radius: var(--radius-sm);
  padding: 10px 16px; font: inherit; font-weight: 700; cursor: pointer;
  background: var(--surface-2); color: var(--text); transition: transform .04s ease, filter .15s ease;
}
.btn:hover { text-decoration: none; filter: brightness(.97); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-sm { padding: 5px 10px; font-size: .85rem; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn-buy { background: var(--up); color: #fff; }
.btn-sell { background: var(--down); color: #fff; }
.btn-ghost { background: transparent; border-color: currentColor; color: inherit; }
.site-header .btn-ghost { color: #fff; border-color: rgba(255,255,255,.4); }

/* ---------- Cards / layout ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 22px;
}
.card-title { margin: 0 0 14px; font-size: 1.05rem; }
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 760px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

.page-head { margin-bottom: 20px; }
.page-head h1 { margin: 0 0 4px; letter-spacing: -.02em; }
.cta-row { margin: 4px 0 22px; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1200px 200px at 10% -20%, color-mix(in srgb, var(--accent) 22%, transparent), transparent),
    linear-gradient(120deg, color-mix(in srgb, var(--brand) 10%, var(--surface)), var(--surface));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 34px; margin-bottom: 22px; box-shadow: var(--shadow);
}
.hero h1 { margin: 0 0 8px; font-size: 2rem; letter-spacing: -.03em; }
.lede { margin: 0; color: var(--muted); font-size: 1.08rem; max-width: 60ch; }

/* ---------- Ticker ---------- */
.ticker {
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 22px; margin-bottom: 22px; box-shadow: var(--shadow);
}
.ticker-price { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.ticker-label { font-weight: 800; color: var(--muted); letter-spacing: .08em; }
.ticker-value { font-size: 2rem; font-weight: 800; letter-spacing: -.02em; }
.ticker-change { font-weight: 700; }
.ticker-stats { display: flex; gap: 26px; margin: 0; flex-wrap: wrap; }
.ticker-stats dt { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; }
.ticker-stats dd { margin: 2px 0 0; font-weight: 700; }

.up { color: var(--up); }
.down { color: var(--down); }
.flat { color: var(--muted); }

/* ---------- Tables ---------- */
.data-table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.data-table th, .data-table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
.data-table th { font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 700; }
.data-table tr:last-child td { border-bottom: 0; }
.data-table .num { text-align: right; }
.data-table .empty { color: var(--muted); text-align: center; padding: 18px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

.book { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 560px) { .book { grid-template-columns: 1fr; } }
.book-title { font-size: .95rem; margin: 0 0 8px; }
.book-bids { color: var(--up); }
.book-asks { color: var(--down); }

.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .78rem; font-weight: 700; }
.pill-buy { background: color-mix(in srgb, var(--up) 18%, transparent); color: var(--up); }
.pill-sell { background: color-mix(in srgb, var(--down) 18%, transparent); color: var(--down); }

/* ---------- Stats ---------- */
.stat { text-align: left; }
.stat-label { color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; }
.stat-value { font-size: 1.9rem; font-weight: 800; letter-spacing: -.02em; margin: 4px 0; }
.stat-sub { color: var(--muted); font-size: .88rem; }

/* ---------- Chart ---------- */
.chart { width: 100%; height: auto; display: block; }
.chart-line { fill: none; stroke: var(--accent); stroke-width: 2.5; stroke-linejoin: round; stroke-linecap: round; }
.chart-area { fill: color-mix(in srgb, var(--accent) 12%, transparent); stroke: none; }
.chart-up .chart-line { stroke: var(--up); }
.chart-up .chart-area { fill: color-mix(in srgb, var(--up) 12%, transparent); }
.chart-down .chart-line { stroke: var(--down); }
.chart-down .chart-area { fill: color-mix(in srgb, var(--down) 12%, transparent); }
.chart-empty { fill: var(--muted); font-size: 14px; }

/* ---------- Forms ---------- */
.stack { display: flex; flex-direction: column; gap: 12px; margin: 14px 0; }
.stack label { display: flex; flex-direction: column; gap: 5px; font-weight: 600; font-size: .92rem; }
.stack input[type=text], .stack select {
  font: inherit; padding: 10px 12px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--surface); color: var(--text);
}
.stack input:focus, .stack select:focus { outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent); outline-offset: 1px; }
.checkbox { flex-direction: row !important; align-items: center; gap: 8px; }
.inline-form { display: inline; }

/* ---------- Flashes ---------- */
.flashes { margin-bottom: 18px; display: flex; flex-direction: column; gap: 10px; }
.flash { padding: 12px 16px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); font-weight: 600; }
.flash-success { border-color: color-mix(in srgb, var(--up) 45%, var(--border)); background: color-mix(in srgb, var(--up) 12%, var(--surface)); }
.flash-error { border-color: color-mix(in srgb, var(--down) 45%, var(--border)); background: color-mix(in srgb, var(--down) 12%, var(--surface)); }
.flash-info { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); background: color-mix(in srgb, var(--accent) 10%, var(--surface)); }

/* ---------- Auth / error ---------- */
.auth-card, .error-card { max-width: 460px; margin: 30px auto; text-align: center; }
.auth-card .stack { text-align: left; }
.error-code { font-size: 3rem; font-weight: 800; color: var(--accent); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); color: var(--muted); padding: 22px 0; margin-top: 20px; font-size: .9rem; }