/* ─────────────────────────────────────────────
   Faktenrechner — shared base styles
   Mobile-first, responsive
───────────────────────────────────────────── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

:root {
  --bg-page:#f4f5f7; --bg-card:#fff; --bg-sidebar:#1a1f2e;
  --bg-sidebar-hover:#252c3f; --bg-sidebar-active:#2d3654;
  --blue:#2563eb; --blue-light:#eff6ff; --blue-mid:#bfdbfe;
  --green:#16a34a; --green-light:#f0fdf4;
  --red:#dc2626; --red-light:#fef2f2;
  --amber:#d97706; --amber-light:#fffbeb;
  --purple:#7c3aed; --purple-light:#f5f3ff;
  --text-primary:#111827; --text-secondary:#6b7280; --text-tertiary:#9ca3af;
  --text-sidebar:#a0aec0; --border:#e5e7eb; --border-strong:#d1d5db;
  --radius-sm:6px; --radius-md:8px; --radius-lg:12px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);
  --shadow-md:0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);
  --sidebar-w:220px; --header-h:56px;
}

body {
  font-family:'Inter',sans-serif;
  background:var(--bg-page);
  color:var(--text-primary);
  font-size:14px;
  min-height:100vh;
}

/* ── Sidebar ── */
.sidebar {
  width:var(--sidebar-w);
  background:var(--bg-sidebar);
  display:flex;
  flex-direction:column;
  position:fixed;
  top:0; left:0; bottom:0;
  z-index:300;
  transform:translateX(0);
  transition:transform .25s ease;
}

.sidebar-logo {
  padding:0 1.25rem;
  height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid rgba(255,255,255,.06);
  flex-shrink:0;
}

.logo-mark { font-size:15px; font-weight:600; color:#fff; letter-spacing:-.02em; }
.logo-mark span { color:#60a5fa; }

.sidebar-close {
  display:none;
  background:none;
  border:none;
  color:var(--text-sidebar);
  cursor:pointer;
  padding:4px;
}

.sidebar-section { padding:1.25rem .75rem .5rem; }
.sidebar-section-label { font-size:10px; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:var(--text-sidebar); padding:0 .5rem; margin-bottom:.35rem; }

.nav-item {
  display:flex; align-items:center; gap:10px;
  padding:8px 10px; border-radius:var(--radius-sm);
  color:var(--text-sidebar); font-size:13px;
  cursor:pointer; transition:all .15s;
  margin-bottom:2px; text-decoration:none;
}
.nav-item:hover { background:var(--bg-sidebar-hover); color:#e2e8f0; }
.nav-item.active { background:var(--bg-sidebar-active); color:#fff; font-weight:500; }
.nav-icon { width:18px; height:18px; opacity:.7; flex-shrink:0; }
.nav-item.active .nav-icon { opacity:1; }
.api-badge { background:rgba(37,99,235,.2); color:#93c5fd; font-size:11px; font-weight:500; padding:2px 8px; border-radius:20px; margin-left:auto; }
.sidebar-bottom { margin-top:auto; padding:1rem .75rem; border-top:1px solid rgba(255,255,255,.06); }

/* ── Overlay (mobile) ── */
.sidebar-overlay {
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.5);
  z-index:200;
}

/* ── Main wrap ── */
.main-wrap {
  margin-left:var(--sidebar-w);
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

/* ── Topbar ── */
.topbar {
  height:var(--header-h);
  background:var(--bg-card);
  border-bottom:1px solid var(--border);
  display:flex;
  align-items:center;
  padding:0 1.5rem;
  gap:1rem;
  position:sticky;
  top:0;
  z-index:100;
}

.menu-btn {
  display:none;
  background:none;
  border:none;
  cursor:pointer;
  color:var(--text-secondary);
  padding:4px;
  flex-shrink:0;
}

.page-title { font-size:15px; font-weight:600; flex:1; }
.topbar-right { display:flex; align-items:center; gap:.5rem; flex-shrink:0; }

.live-pill {
  display:flex; align-items:center; gap:6px;
  background:var(--green-light); border:1px solid #bbf7d0;
  border-radius:20px; padding:4px 10px;
  font-size:12px; font-weight:500; color:var(--green);
}
.live-dot { width:6px; height:6px; border-radius:50%; background:var(--green); animation:blink 2s ease-in-out infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }

.timestamp { font-size:11px; color:var(--text-tertiary); }

.refresh-btn {
  display:flex; align-items:center; gap:5px;
  background:var(--bg-card); border:1px solid var(--border-strong);
  border-radius:var(--radius-sm); padding:5px 10px;
  font-size:12px; font-weight:500; color:var(--text-secondary);
  cursor:pointer; transition:all .15s; font-family:inherit;
  white-space:nowrap;
}
.refresh-btn:hover { background:var(--blue-light); border-color:var(--blue-mid); color:var(--blue); }

/* ── Content ── */
.content { padding:1.25rem; flex:1; }

/* ── Symbol bar ── */
.symbol-bar { display:flex; align-items:center; gap:.5rem; margin-bottom:1.25rem; flex-wrap:wrap; }

.symbol-btn {
  display:flex; align-items:center; gap:7px;
  padding:6px 12px; border-radius:var(--radius-md);
  border:1px solid var(--border); background:var(--bg-card);
  font-size:13px; font-weight:500; color:var(--text-secondary);
  cursor:pointer; transition:all .15s; font-family:inherit;
  box-shadow:var(--shadow-sm);
}
.symbol-btn:hover { border-color:var(--blue-mid); color:var(--blue); }
.symbol-btn.active { background:var(--blue); border-color:var(--blue); color:#fff; }
.symbol-icon { width:18px; height:18px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:10px; font-weight:700; }
.symbol-btn.active .symbol-icon { background:rgba(255,255,255,.2); color:#fff; }
.symbol-btn:not(.active) .symbol-icon { background:var(--bg-page); color:var(--text-secondary); }

/* ── Section ── */
.section-block { margin-bottom:1.75rem; }
.section-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:.75rem; flex-wrap:wrap; gap:.5rem; }
.section-title { font-size:13px; font-weight:600; display:flex; align-items:center; gap:8px; }
.section-title::before { content:''; width:3px; height:14px; background:var(--blue); border-radius:2px; }
.section-sub { font-size:12px; color:var(--text-tertiary); }

/* ── Cards ── */
.card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:1.1rem;
  box-shadow:var(--shadow-sm); transition:box-shadow .15s;
}
.card:hover { box-shadow:var(--shadow-md); }

.exchange-badge { font-size:11px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; padding:3px 8px; border-radius:4px; background:var(--bg-page); color:var(--text-secondary); border:1px solid var(--border); }
.exchange-badge.hl { background:var(--purple-light); color:var(--purple); border-color:#ddd6fe; }

/* ── Grids — mobile first, expand on wider screens ── */
.funding-grid { display:grid; grid-template-columns:1fr 1fr; gap:.75rem; }
.oi-grid      { display:grid; grid-template-columns:1fr 1fr; gap:.75rem; }
.charts-layout { display:grid; grid-template-columns:1fr; gap:.75rem; }
.ls-layout     { display:grid; grid-template-columns:1fr; gap:.75rem; }
.liq-layout    { display:grid; grid-template-columns:1fr; gap:.75rem; }

/* ── Spread ── */
.spread-card { background:var(--blue-light); border:1px solid var(--blue-mid); border-radius:var(--radius-md); padding:.875rem 1.25rem; display:flex; align-items:center; gap:1rem; margin-top:.75rem; flex-wrap:wrap; }
.spread-lbl { font-size:10px; font-weight:600; text-transform:uppercase; letter-spacing:.07em; color:#3b82f6; margin-bottom:2px; }
.spread-val { font-size:20px; font-weight:600; color:var(--blue); letter-spacing:-.02em; }
.spread-desc { font-size:12px; color:#1d4ed8; flex:1; min-width:200px; }

/* ── Funding card internals ── */
.card-exchange { display:flex; align-items:center; justify-content:space-between; margin-bottom:.6rem; }
.card-time { font-size:10px; color:var(--text-tertiary); }
.rate-value { font-size:24px; font-weight:300; letter-spacing:-.03em; line-height:1; margin-bottom:3px; }
.rate-value.pos { color:var(--green); }
.rate-value.neg { color:var(--red); }
.rate-value.neu { color:var(--amber); }
.rate-annualized { font-size:11px; color:var(--text-tertiary); margin-bottom:.6rem; }
.rate-annualized strong { font-weight:500; color:var(--text-secondary); }
.hl-note { font-size:10px; color:var(--purple); background:var(--purple-light); border:1px solid #ddd6fe; border-radius:4px; padding:2px 6px; display:inline-block; margin-bottom:.6rem; }
.card-divider { height:1px; background:var(--border); margin:.6rem 0; }
.card-meta-grid { display:grid; grid-template-columns:1fr 1fr; gap:.4rem; }
.meta-label { font-size:10px; color:var(--text-tertiary); margin-bottom:2px; }
.meta-value { font-size:12px; font-weight:500; color:var(--text-primary); }

/* ── OI card ── */
.oi-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:1rem; box-shadow:var(--shadow-sm); }
.oi-exchange { font-size:10px; font-weight:600; text-transform:uppercase; letter-spacing:.06em; color:var(--text-tertiary); margin-bottom:.3rem; }
.oi-exchange.hl { color:var(--purple); }
.oi-value { font-size:18px; font-weight:600; color:var(--text-primary); letter-spacing:-.02em; }
.oi-time { font-size:10px; color:var(--text-tertiary); margin-top:3px; }

/* ── Chart card ── */
.chart-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:1.1rem; box-shadow:var(--shadow-sm); }
.chart-title { font-size:12px; font-weight:600; color:var(--text-secondary); margin-bottom:.75rem; }
.chart-wrap { position:relative; height:160px; }

/* ── Long/short ── */
.ls-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:1.1rem; box-shadow:var(--shadow-sm); }
.ls-card-title { font-size:12px; font-weight:600; color:var(--text-secondary); margin-bottom:.875rem; display:flex; align-items:center; gap:8px; }
.ls-card-title .tag { font-size:10px; padding:2px 7px; border-radius:10px; font-weight:500; }
.ls-card-title .tag.retail { background:#fef3c7; color:#92400e; }
.ls-card-title .tag.smart { background:#ede9fe; color:#5b21b6; }
.ls-exchange { margin-bottom:.875rem; }
.ls-exchange:last-child { margin-bottom:0; }
.ls-exchange-name { font-size:10px; font-weight:600; text-transform:uppercase; letter-spacing:.06em; color:var(--text-tertiary); margin-bottom:.35rem; }
.ls-bar-track { flex:1; height:8px; border-radius:4px; background:var(--red-light); overflow:hidden; }
.ls-bar-long { height:100%; background:var(--green); border-radius:4px; transition:width .5s ease; }
.ls-bar-labels { display:flex; justify-content:space-between; margin-top:4px; }
.ls-long-pct { font-size:11px; font-weight:600; color:var(--green); }
.ls-short-pct { font-size:11px; font-weight:600; color:var(--red); }
.ls-sentiment { font-size:11px; color:var(--text-tertiary); margin-top:.35rem; font-style:italic; }
.divergence-card { background:var(--amber-light); border:1px solid #fcd34d; border-radius:var(--radius-md); padding:.875rem 1.1rem; display:flex; align-items:flex-start; gap:.75rem; margin-top:.75rem; }
.divergence-icon { font-size:18px; flex-shrink:0; }
.divergence-text { font-size:12px; color:#92400e; }
.divergence-text strong { font-weight:600; }

/* ── Liquidations ── */
.liq-feed { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); box-shadow:var(--shadow-sm); overflow:hidden; }
.liq-feed-header { padding:.75rem 1.1rem; border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; background:var(--bg-page); }
.liq-feed-title { font-size:12px; font-weight:600; color:var(--text-secondary); }
.liq-count { font-size:11px; background:var(--blue-light); color:var(--blue); padding:2px 8px; border-radius:10px; font-weight:500; }
.liq-list { max-height:320px; overflow-y:auto; }
.liq-item { display:flex; align-items:center; gap:10px; padding:9px 1.1rem; border-bottom:1px solid var(--border); transition:background .1s; animation:slideIn .3s ease; }
@keyframes slideIn { from{opacity:0;transform:translateX(-6px)} to{opacity:1;transform:none} }
.liq-item:hover { background:#f9fafb; }
.liq-item:last-child { border-bottom:none; }
.liq-direction { width:26px; height:26px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:11px; font-weight:700; flex-shrink:0; }
.liq-direction.long { background:var(--red-light); color:var(--red); }
.liq-direction.short { background:var(--green-light); color:var(--green); }
.liq-details { flex:1; min-width:0; }
.liq-symbol { font-size:12px; font-weight:600; }
.liq-meta { font-size:11px; color:var(--text-tertiary); margin-top:1px; }
.liq-value { text-align:right; flex-shrink:0; }
.liq-usd { font-size:13px; font-weight:600; }
.liq-usd.big { color:var(--red); }
.liq-usd.medium { color:var(--amber); }
.liq-usd.small { color:var(--text-secondary); }
.liq-exchange-badge { font-size:10px; color:var(--text-tertiary); margin-top:2px; }

.liq-stats { display:grid; grid-template-columns:1fr 1fr 1fr; gap:.75rem; }

.stat-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); padding:1rem; box-shadow:var(--shadow-sm); }
.stat-label { font-size:10px; color:var(--text-tertiary); margin-bottom:.4rem; font-weight:500; text-transform:uppercase; letter-spacing:.06em; }
.stat-value { font-size:18px; font-weight:600; color:var(--text-primary); letter-spacing:-.02em; }
.stat-sub { font-size:11px; color:var(--text-tertiary); margin-top:3px; }
.liq-bar-wrap { margin-top:.5rem; }
.liq-bar-label { display:flex; justify-content:space-between; font-size:11px; margin-bottom:4px; }
.liq-bar-label .longs { color:var(--green); font-weight:500; }
.liq-bar-label .shorts { color:var(--red); font-weight:500; }
.liq-bar-track { height:5px; background:var(--red-light); border-radius:3px; overflow:hidden; }
.liq-bar-fill { height:100%; background:var(--green); border-radius:3px; transition:width .5s ease; }

/* ── Table ── */
.table-card { background:var(--bg-card); border:1px solid var(--border); border-radius:var(--radius-lg); box-shadow:var(--shadow-sm); overflow:hidden; }
.table-wrap { overflow-x:auto; }
table { width:100%; border-collapse:collapse; font-size:13px; }
thead th { padding:9px 14px; text-align:left; font-size:11px; font-weight:600; text-transform:uppercase; letter-spacing:.06em; color:var(--text-tertiary); background:var(--bg-page); border-bottom:1px solid var(--border); white-space:nowrap; }
tbody td { padding:9px 14px; border-bottom:1px solid var(--border); white-space:nowrap; }
tbody tr:last-child td { border-bottom:none; }
tbody tr:hover td { background:#f9fafb; }

.badge { display:inline-flex; align-items:center; gap:4px; padding:2px 8px; border-radius:12px; font-size:11px; font-weight:500; }
.badge-green { background:var(--green-light); color:var(--green); }
.badge-red   { background:var(--red-light); color:var(--red); }
.badge-amber { background:var(--amber-light); color:var(--amber); }
.pos { color:var(--green); font-weight:500; }
.neg { color:var(--red); font-weight:500; }
.neu { color:var(--amber); font-weight:500; }

/* ── Utility ── */
.empty-state { padding:2.5rem 1.5rem; text-align:center; color:var(--text-tertiary); font-size:13px; }
.empty-icon { font-size:28px; margin-bottom:.5rem; }
.empty-title { font-weight:500; color:var(--text-secondary); margin-bottom:.25rem; }
.state-box { padding:2rem; text-align:center; color:var(--text-tertiary); font-size:13px; }
.skeleton { background:linear-gradient(90deg,#f0f0f0 25%,#e8e8e8 50%,#f0f0f0 75%); background-size:200% 100%; animation:shimmer 1.5s infinite; border-radius:4px; height:14px; }
@keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* ══════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
══════════════════════════════════════════ */

/* ── Tablet (≥768px) ── */
@media (min-width:768px) {
  .charts-layout  { grid-template-columns:1fr 1fr; }
  .ls-layout      { grid-template-columns:1fr 1fr; }
  .liq-layout     { grid-template-columns:1fr; }
  .chart-wrap     { height:180px; }
}

/* ── Desktop (≥1024px) ── */
@media (min-width:1024px) {
  .liq-layout  { grid-template-columns:1fr auto; }
  .liq-stats   { display:flex; flex-direction:column; gap:.75rem; width:260px; }
  .stat-card   { width:auto; }
  .content     { padding:1.5rem; }
}

/* ── Mobile (≤767px) ── */
@media (max-width:767px) {
  :root { --sidebar-w:220px; }

  /* Sidebar hidden off-screen on mobile */
  .sidebar { transform:translateX(-100%); }
  .sidebar.open { transform:translateX(0); }
  .sidebar-close { display:block; }
  .sidebar-overlay.open { display:block; }

  /* No left margin on mobile */
  .main-wrap { margin-left:0; }

  /* Show hamburger */
  .menu-btn { display:block; }

  /* Hide timestamp on very small screens */
  .timestamp { display:none; }

  /* Single column funding grid on mobile */
  .funding-grid { grid-template-columns:1fr; }
  .oi-grid      { grid-template-columns:1fr 1fr; }

  /* Liq stats as row on mobile */
  .liq-stats { grid-template-columns:1fr; }

  /* Topbar padding */
  .topbar { padding:0 1rem; }
  .content { padding:1rem; }
}

/* ── Very small (≤380px) ── */
@media (max-width:380px) {
  .oi-grid { grid-template-columns:1fr; }
  .symbol-btn { padding:5px 10px; font-size:12px; }
}