/* ============================================================
   Arc Yield Agent — Editorial / Quiet-Luxury Design System
   Palette: ivory paper, deep ink, antique brass, forest accent
   ============================================================ */

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }

/* Tokens */
:root {
  /* Palette */
  --paper:      #F5F1EA;       /* ivory base */
  --paper-soft: #EFE9DF;
  --paper-line: #E2D9CB;
  --ink:        #1B1A17;       /* deep ink */
  --ink-soft:   #3A3833;
  --ink-muted:  #6F6A5F;
  --brass:      #A37A3A;       /* antique brass / accent */
  --brass-deep: #7A5826;
  --forest:     #2C4A3E;       /* allocator highlight */
  --rose:       #B85C50;
  --shadow-1:   0 1px 0 rgba(27, 26, 23, 0.04), 0 1px 2px rgba(27, 26, 23, 0.06);
  --shadow-2:   0 1px 0 rgba(27, 26, 23, 0.04), 0 12px 32px -16px rgba(27, 26, 23, 0.18);

  /* Typography */
  --serif: 'Fraunces', 'Times New Roman', Georgia, serif;
  --sans:  'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono:  'JetBrains Mono', 'SF Mono', Menlo, monospace;

  /* Layout */
  --radius:    14px;
  --radius-sm: 8px;
  --radius-lg: 22px;
  --maxw:      1180px;
  --gutter:    clamp(20px, 4vw, 56px);
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

/* Paper background — subtle texture + warm vignette */
.paper-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(163, 122, 58, 0.08), transparent 60%),
    radial-gradient(ellipse at 100% 100%, rgba(44, 74, 62, 0.05), transparent 55%),
    var(--paper);
}
.paper-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.42  0 0 0 0 0.40  0 0 0 0 0.36  0 0 0 0.06 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: 0.6;
  mix-blend-mode: multiply;
  pointer-events: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ============================================================
   TOP BAR
   ============================================================ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 241, 234, 0.85);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--paper-line);
}
.topbar-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding-block: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}
.brand-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
}
.brand-name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.topnav {
  display: flex;
  justify-content: center;
  gap: 28px;
}
.topnav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  transition: color 180ms ease;
}
.topnav a:hover { color: var(--ink); }
.topnav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--brass);
  transition: right 240ms ease;
}
.topnav a:hover::after { right: 0; }

.topbar-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink-muted);
}
.dot.connected { background: var(--forest); box-shadow: 0 0 0 4px rgba(44, 74, 62, 0.12); }
.pill-thin {
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

/* ============================================================
   MAIN
   ============================================================ */
.main {
  padding-top: clamp(48px, 8vw, 120px);
  padding-bottom: clamp(48px, 8vw, 120px);
  display: flex;
  flex-direction: column;
  gap: clamp(56px, 7vw, 96px);
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.9fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: end;
}
.eyebrow {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 18px;
}
.display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(44px, 7vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  color: var(--ink);
}
.display em {
  font-style: italic;
  font-weight: 300;
  color: var(--brass-deep);
}
.lead {
  font-size: 18px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0 0 28px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}

.hero-card {
  background: var(--paper-soft);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--brass), transparent);
}
.card-eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 14px;
}
.card-title {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}
.rec-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--paper-line);
  border-bottom: 1px solid var(--paper-line);
}
.figure {
  display: block;
  margin-top: 4px;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.rec-note {
  font-size: 13px;
  color: var(--ink-muted);
  margin: 16px 0 0;
}

/* STAT ROW */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--paper-soft);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: clamp(20px, 3vw, 32px);
}
.stat {
  padding-right: 20px;
  border-right: 1px solid var(--paper-line);
}
.stat:last-child { border-right: none; padding-right: 0; }
.stat-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 12px;
}
.stat-value {
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 500;
  letter-spacing: -0.01em;
  margin: 0 0 4px;
  color: var(--ink);
}
.stat-sub {
  font-size: 12px;
  margin: 0;
}
.stat-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.actions-stat .stat-value { display: none; }

/* SECTION HEAD */
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 32px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--paper-line);
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 400;
  letter-spacing: -0.015em;
  margin: 0;
  line-height: 1.1;
}
.section-note { font-size: 13px; margin: 0; }

/* VAULT GRID */
.vault-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.vault {
  position: relative;
  background: var(--paper-soft);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: transform 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
}
.vault:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: var(--brass);
}
.vault.best {
  background: linear-gradient(180deg, #1B1A17 0%, #28251F 100%);
  color: var(--paper);
  border-color: transparent;
}
.vault.best .vault-name,
.vault.best .vault-rate {
  color: var(--paper);
}
.vault.best .vault-strategy,
.vault.best .vault-shares-row,
.vault.best .vault-addr code {
  color: rgba(245, 241, 234, 0.7);
}
.vault.best .vault-rate {
  color: #E8C887;
}
.vault.best .vault-tag {
  background: rgba(232, 200, 135, 0.12);
  color: #E8C887;
  border-color: rgba(232, 200, 135, 0.25);
}
.vault.best .vault-bar {
  background: rgba(245, 241, 234, 0.1);
}
.vault.best .vault-bar-fill {
  background: #E8C887;
}

.vault-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  padding: 4px 10px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass);
  background: rgba(163, 122, 58, 0.08);
  border: 1px solid rgba(163, 122, 58, 0.2);
  border-radius: 99px;
}
.vault-name {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0 0 6px;
}
.vault-strategy {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-muted);
  margin: 0;
}
.vault-rate {
  font-family: var(--serif);
  font-size: 44px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--brass-deep);
  margin: 8px 0 6px;
}
.vault-rate small {
  font-size: 16px;
  color: var(--ink-muted);
  margin-left: 4px;
  font-weight: 400;
  vertical-align: baseline;
  position: relative;
  top: -2px;
}
.vault-bar {
  height: 6px;
  background: var(--paper-line);
  border-radius: 99px;
  overflow: hidden;
  margin: 4px 0 12px;
}
.vault-bar-fill {
  height: 100%;
  background: var(--brass);
  border-radius: 99px;
  transition: width 600ms cubic-bezier(0.16, 1, 0.3, 1);
}
.vault-shares-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 13px;
  color: var(--ink-soft);
}
.vault-shares-row strong { font-weight: 600; color: var(--ink); }
.vault-addr {
  border-top: 1px solid var(--paper-line);
  padding-top: 14px;
}
.vault.best .vault-addr {
  border-top-color: rgba(245, 241, 234, 0.15);
}
.vault-addr code {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-muted);
  word-break: break-all;
  line-height: 1.6;
  display: block;
}

/* LOWER GRID (log + contracts) */
.lower-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr);
  gap: 24px;
}
.paper-card {
  background: var(--paper-soft);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: clamp(22px, 3vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card-h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.01em;
}
.log {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin: 0;
  max-height: 320px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.contracts {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
}
.contracts > div { display: flex; gap: 6px; align-items: baseline; flex-wrap: wrap; }
.contracts code {
  background: var(--paper);
  border: 1px solid var(--paper-line);
  padding: 2px 6px;
  border-radius: 4px;
  word-break: break-all;
}
.contracts a { color: var(--brass); }

/* SHARE BAND */
.share-band {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  padding: clamp(28px, 4vw, 48px);
  background: linear-gradient(135deg, #1B1A17 0%, #2C2820 100%);
  color: var(--paper);
  border-radius: var(--radius-lg);
}
.share-band .eyebrow { color: #E8C887; }
.share-band .card-h3 {
  color: var(--paper);
  max-width: 22ch;
  font-size: 28px;
}
.share-band .btn-soft {
  background: rgba(245, 241, 234, 0.1);
  color: var(--paper);
  border-color: rgba(245, 241, 234, 0.2);
}
.share-band .btn-soft:hover { background: rgba(245, 241, 234, 0.18); }
.share-band .btn-ghost { color: var(--paper); border-color: rgba(245, 241, 234, 0.3); }
.share-band .btn-ghost:hover { background: rgba(245, 241, 234, 0.08); }
.share-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  --pad-y: 14px;
  --pad-x: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: var(--pad-y) var(--pad-x);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 99px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease, transform 120ms ease;
  user-select: none;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn-primary:hover:not(:disabled) {
  background: var(--brass-deep);
  border-color: var(--brass-deep);
}
.btn-arrow { transition: transform 200ms ease; }
.btn-primary:hover .btn-arrow { transform: translateX(4px); }

.btn-soft {
  background: rgba(163, 122, 58, 0.08);
  color: var(--brass-deep);
  border-color: rgba(163, 122, 58, 0.2);
}
.btn-soft:hover:not(:disabled) {
  background: rgba(163, 122, 58, 0.16);
  border-color: var(--brass);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
  border-color: var(--paper-line);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--paper-soft);
  color: var(--ink);
  border-color: var(--ink-soft);
}

.btn-small { --pad-y: 10px; --pad-x: 16px; font-size: 13px; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--paper-line);
  margin-top: clamp(48px, 7vw, 80px);
  padding-block: 36px;
  background: var(--paper-soft);
}
.footer-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: center;
}
.footer-links {
  display: flex;
  gap: 22px;
  justify-content: center;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 13px;
}
.footer-links a:hover { color: var(--brass); }
.footer .muted.small { text-align: right; }
.footer a { color: var(--brass); }

.muted { color: var(--ink-muted); }
.small { font-size: 13px; }

/* ============================================================
   TOAST
   ============================================================ */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: var(--paper);
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 13px;
  box-shadow: 0 14px 32px -12px rgba(0,0,0,0.3);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 220ms ease, transform 220ms ease;
  max-width: 360px;
  z-index: 100;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.error { background: var(--rose); }
.toast.success { background: var(--forest); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
  .topnav { display: none; }
  .topbar-row { grid-template-columns: auto 1fr; }
  .topbar-status { justify-self: end; }

  .hero { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2n) { border-right: none; padding-right: 0; }
  .stat:nth-child(-n+2) { padding-bottom: 20px; border-bottom: 1px solid var(--paper-line); margin-bottom: 4px; }

  .vault-grid { grid-template-columns: 1fr; }
  .lower-grid { grid-template-columns: 1fr; }
  .footer-row { grid-template-columns: 1fr; gap: 16px; text-align: center; }
  .footer-links { justify-content: center; }
  .footer .muted.small { text-align: center; }
}

@media (max-width: 540px) {
  .stat-row { grid-template-columns: 1fr; padding: 20px; }
  .stat { border-right: none; padding: 0 0 18px 0; border-bottom: 1px solid var(--paper-line); margin-bottom: 4px; }
  .stat:last-child { border-bottom: none; padding-bottom: 0; }
  .display { font-size: clamp(38px, 12vw, 56px); }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
  
  /* Mobile vault card refinements */
  .vault {
    padding: 22px 18px;
    gap: 14px;
  }
  .vault-name {
    font-size: 20px;
    line-height: 1.3;
    margin-bottom: 4px;
  }
  .vault-strategy {
    font-size: 12px;
  }
  .vault-rate {
    font-size: 38px;
    margin: 6px 0 4px;
  }
  .vault-rate small {
    font-size: 14px;
    top: -1px;
  }
  .vault-bar {
    height: 5px;
    margin: 3px 0 10px;
  }
  .vault-shares-row {
    font-size: 12px;
  }
  .vault-addr {
    padding-top: 12px;
  }
  .vault-addr code {
    font-size: 9px;
    line-height: 1.7;
  }
}

/* Print: friendly */
@media print {
  .paper-bg, .topbar, .footer { display: none; }
  body { background: white; color: black; }
}