/* ============================================================
   Belle Epoch — style.css
   Dark-themed crypto/agent protocol aesthetic
   ============================================================ */

/* --- Reset & Base ------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0a0a0f;
  --card-bg:     #12121a;
  --card-border: #1a1a2e;
  --primary:     #00d4aa;
  --secondary:   #7c5cfc;
  --warning:     #ff6b35;
  --text:        #e0e0e8;
  --muted:       #8888a0;
  --mono:        'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --sans:        system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius:      10px;
  --glass:       rgba(18, 18, 26, .72);
  --glass-border:rgba(26, 26, 46, .6);
  --transition:  .25s ease;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: #33e8c0; }

img { max-width: 100%; display: block; }

/* --- Navigation -------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 2rem;
  background: rgba(10, 10, 15, .88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--card-border);
}

.nav-brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--primary);
  letter-spacing: -.02em;
}

.nav-brand span { color: var(--muted); font-weight: 400; }

.nav-links { display: flex; gap: 1.5rem; }

.nav-links a {
  color: var(--muted);
  font-size: .875rem;
  font-weight: 500;
  padding: .35rem .65rem;
  border-radius: 6px;
  transition: all var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255,255,255,.05);
}

.nav-links a.active { color: var(--primary); }

/* --- Layout ------------------------------------------------ */
.page { padding-top: 4rem; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.grid-dashboard {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 1.5rem;
}

section { padding: 3rem 0; }

section + section { border-top: 1px solid var(--card-border); }

h1 {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.15;
}

h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: .5rem;
}

.section-label {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: .5rem;
}

/* --- Card (glass morphism) --------------------------------- */
.card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: rgba(0, 212, 170, .2);
  box-shadow: 0 0 24px rgba(0, 212, 170, .05);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

/* --- Hero -------------------------------------------------- */
.hero {
  padding: 4rem 0 2rem;
  text-align: center;
}

.hero h1 { margin-bottom: .75rem; }

.hero .subtitle {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

.hero-stat { text-align: center; }

/* --- Stat values ------------------------------------------- */
.stat-value {
  font-family: var(--mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  transition: opacity .3s ease;
}

.stat-value.updating {
  animation: pulse-value .4s ease;
}

.stat-value-sm {
  font-family: var(--mono);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
}

.stat-label {
  font-size: .75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-top: .2rem;
}

@keyframes pulse-value {
  0%   { opacity: 1; }
  30%  { opacity: .4; }
  100% { opacity: 1; }
}

/* --- Epoch countdown --------------------------------------- */
.epoch-countdown {
  font-family: var(--mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--warning);
  letter-spacing: .04em;
}

.epoch-countdown.imminent { color: #ff3b3b; animation: blink-countdown .5s infinite; }

@keyframes blink-countdown {
  50% { opacity: .5; }
}

/* --- Bid stream -------------------------------------------- */
.bid-stream {
  max-height: 300px;
  overflow: hidden;
  position: relative;
}

.bid-stream::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 48px;
  background: linear-gradient(transparent, var(--card-bg));
  pointer-events: none;
}

.bid-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .5rem .75rem;
  border-radius: 6px;
  font-size: .85rem;
  animation: slide-in .35s ease;
  transition: background var(--transition);
}

.bid-entry:nth-child(odd) { background: rgba(255,255,255,.02); }

.bid-entry .bid-agent {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--muted);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bid-entry .bid-amount {
  font-family: var(--mono);
  font-weight: 600;
  color: var(--primary);
}

.bid-entry .bid-time {
  font-size: .72rem;
  color: var(--muted);
}

@keyframes slide-in {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0);     opacity: 1; }
}

/* --- Price chart ------------------------------------------- */
.price-chart {
  width: 100%;
  height: 180px;
  position: relative;
}

.price-chart canvas {
  width: 100%;
  height: 100%;
}

/* --- Sparkline --------------------------------------------- */
.sparkline { display: inline-block; vertical-align: middle; }

.sparkline svg {
  width: 64px;
  height: 24px;
}

.sparkline polyline {
  fill: none;
  stroke: var(--primary);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* --- Simulator --------------------------------------------- */
.simulator {
  counter-reset: sim-step;
}

.sim-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  border-left: 2px solid var(--card-border);
  position: relative;
  opacity: .45;
  transition: all .4s ease;
}

.sim-step.active {
  opacity: 1;
  border-left-color: var(--primary);
}

.sim-step.done {
  opacity: .7;
  border-left-color: var(--secondary);
}

.sim-step-number {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: .78rem;
  font-weight: 700;
  font-family: var(--mono);
  background: var(--card-border);
  color: var(--muted);
  transition: all .3s ease;
}

.sim-step.active .sim-step-number {
  background: var(--primary);
  color: var(--bg);
}

.sim-step.done .sim-step-number {
  background: var(--secondary);
  color: #fff;
}

.sim-step-title { font-weight: 600; font-size: .95rem; }
.sim-step-desc  { font-size: .82rem; color: var(--muted); margin-top: .15rem; }
.sim-step-data  {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--primary);
  margin-top: .35rem;
}

/* --- Console (terminal) ------------------------------------ */
.console {
  background: #0c0c14;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  font-family: var(--mono);
  font-size: .82rem;
  line-height: 1.8;
  max-height: 420px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.console-line {
  animation: fade-in .3s ease;
}

.console-line .prefix {
  color: var(--muted);
  margin-right: .5rem;
}

.console-line .prefix::before { content: '> '; color: var(--primary); }

.console-line.success { color: var(--primary); }
.console-line.error   { color: #ff4466; }
.console-line.info    { color: var(--muted); }
.console-line.result  { color: var(--secondary); }

.console-cursor::after {
  content: '\2588';
  animation: blink-cursor .7s step-end infinite;
  color: var(--primary);
}

@keyframes fade-in {
  from { opacity: 0; transform: translateX(-4px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes blink-cursor {
  50% { opacity: 0; }
}

/* --- Terminal block (static code display) ------------------- */
.terminal {
  background: #0c0c14;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  font-family: var(--mono);
  font-size: .9rem;
  color: var(--primary);
  overflow-x: auto;
  white-space: pre;
  user-select: all;
}

/* --- Ticker strip ------------------------------------------ */
.ticker-strip {
  overflow: hidden;
  white-space: nowrap;
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
  padding: .6rem 0;
  background: rgba(18, 18, 26, .5);
}

.ticker-inner {
  display: inline-flex;
  gap: 2.5rem;
  animation: ticker-scroll 30s linear infinite;
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .82rem;
  flex-shrink: 0;
}

.ticker-name { color: var(--text); font-weight: 600; }
.ticker-resource { color: var(--muted); }
.ticker-price {
  font-family: var(--mono);
  font-weight: 600;
  color: var(--primary);
}
.ticker-delta {
  font-family: var(--mono);
  font-size: .75rem;
  font-weight: 600;
}
.ticker-delta.up   { color: var(--primary); }
.ticker-delta.down { color: #ff4466; }

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* --- Marketplace grid -------------------------------------- */
.marketplace-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.provider-card .provider-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
}

.provider-card .provider-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .85rem;
  color: var(--bg);
}

.provider-card .provider-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .5rem;
  margin: .75rem 0;
}

.provider-card .provider-stat-label {
  font-size: .7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.provider-card .provider-stat-value {
  font-family: var(--mono);
  font-size: .9rem;
  font-weight: 600;
}

/* --- Buttons ----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .6rem 1.25rem;
  border-radius: 8px;
  font-size: .875rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--sans);
}

.btn-primary {
  background: var(--primary);
  color: var(--bg);
}

.btn-primary:hover {
  background: #33e8c0;
  box-shadow: 0 0 20px rgba(0, 212, 170, .3);
}

.btn-primary:disabled {
  opacity: .45;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-secondary {
  background: transparent;
  color: var(--secondary);
  border: 1px solid var(--secondary);
}

.btn-secondary:hover {
  background: rgba(124, 92, 252, .1);
  box-shadow: 0 0 16px rgba(124, 92, 252, .15);
}

.btn-sm { padding: .4rem .85rem; font-size: .78rem; }
.btn-lg { padding: .75rem 2rem; font-size: 1rem; }

/* --- Badge ------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .2rem .6rem;
  border-radius: 20px;
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.badge-verified {
  background: rgba(0, 212, 170, .12);
  color: var(--primary);
  border: 1px solid rgba(0, 212, 170, .25);
}

.badge-active {
  background: rgba(124, 92, 252, .12);
  color: var(--secondary);
  border: 1px solid rgba(124, 92, 252, .25);
}

.badge-warning {
  background: rgba(255, 107, 53, .12);
  color: var(--warning);
  border: 1px solid rgba(255, 107, 53, .25);
}

/* dot inside badge */
.badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* --- Table ------------------------------------------------- */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}

.table th {
  text-align: left;
  padding: .65rem .75rem;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  border-bottom: 1px solid var(--card-border);
}

.table td {
  padding: .65rem .75rem;
  border-bottom: 1px solid rgba(26, 26, 46, .4);
  font-family: var(--mono);
  font-size: .82rem;
}

.table tr:hover td { background: rgba(255,255,255,.02); }

.table .won  { color: var(--primary); }
.table .lost { color: var(--muted); }

/* --- Loading / skeleton ------------------------------------ */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0; left: -100%; right: -100%; bottom: 0;
  background: linear-gradient(90deg, transparent 30%, rgba(255,255,255,.04) 50%, transparent 70%);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  to { transform: translateX(100%); }
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--card-border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* --- Slots indicator --------------------------------------- */
.slots-bar {
  display: flex;
  gap: 4px;
  margin-top: .5rem;
}

.slot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--card-border);
  transition: background .3s ease;
}

.slot.filled { background: var(--primary); }

/* --- Forms ------------------------------------------------- */
.form-group { margin-bottom: 1rem; }

.form-group label {
  display: block;
  font-size: .78rem;
  color: var(--muted);
  margin-bottom: .35rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.form-input {
  width: 100%;
  padding: .6rem .85rem;
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--mono);
  font-size: .85rem;
  transition: border-color var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, .1);
}

.form-input::placeholder { color: var(--muted); opacity: .5; }

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238888a0'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .75rem center;
  padding-right: 2rem;
}

.form-message {
  padding: .65rem .85rem;
  border-radius: 8px;
  font-size: .82rem;
  margin-top: .75rem;
  display: none;
}

.form-message.success {
  display: block;
  background: rgba(0, 212, 170, .1);
  border: 1px solid rgba(0, 212, 170, .25);
  color: var(--primary);
}

.form-message.error {
  display: block;
  background: rgba(255, 68, 102, .1);
  border: 1px solid rgba(255, 68, 102, .25);
  color: #ff4466;
}

/* --- Benefit cards ----------------------------------------- */
.benefit-card {
  text-align: center;
  padding: 2rem 1.5rem;
}

.benefit-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto .75rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: rgba(0, 212, 170, .1);
}

.benefit-card h3 { font-size: 1rem; }
.benefit-card p  { font-size: .82rem; color: var(--muted); }

/* --- Identity panel ---------------------------------------- */
.identity-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.identity-item {
  padding: 1rem;
  background: var(--bg);
  border-radius: 8px;
  border: 1px solid var(--card-border);
}

.identity-item h4 {
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  margin-bottom: .5rem;
}

.identity-item .value {
  font-family: var(--mono);
  font-size: .82rem;
  word-break: break-all;
}

/* --- Responsive -------------------------------------------- */
@media (max-width: 1024px) {
  .grid-dashboard { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav { padding: .65rem 1rem; }
  .nav-links { gap: .75rem; }
  .container { padding: 0 1rem; }
  h1 { font-size: 1.75rem; }
  .stat-value { font-size: 1.5rem; }
  .hero-stats { gap: 1.5rem; }
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: 1fr; }
  .identity-grid { grid-template-columns: 1fr; }
  .marketplace-grid { grid-template-columns: 1fr; }
  section { padding: 2rem 0; }
}

@media (max-width: 480px) {
  .nav-brand span { display: none; }
  .nav-links a { font-size: .78rem; padding: .3rem .45rem; }
  h1 { font-size: 1.4rem; }
}