/* ===== Trading Formulas Library — Styles ===== */
:root {
  --bg: #0b0d12;
  --bg-soft: #11141b;
  --bg-card: #151924;
  --bg-elev: #1a1f2c;
  --border: #232838;
  --border-soft: #1d2230;
  --text: #e6e8ee;
  --text-soft: #a3a8b8;
  --text-dim: #6c7185;
  --primary: #6366f1;
  --primary-glow: #818cf8;
  --accent: #10b981;
  --accent-glow: #34d399;
  --warn: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;
  --pink: #ec4899;
  --purple: #a855f7;

  --cat-tech: #3b82f6;
  --cat-risk: #f59e0b;
  --cat-perf: #10b981;
  --cat-crypto: #a855f7;
  --cat-strat: #ec4899;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px -10px rgba(0,0,0,.5);
  --shadow-lg: 0 30px 80px -20px rgba(0,0,0,.7);
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--primary-glow); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.01em;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 64px 0 48px;
  overflow: hidden;
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg);
  z-index: 2;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at top, black 0%, transparent 70%);
}
.glow {
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .35;
}
.glow-a { background: var(--primary); top: -200px; left: -200px; }
.glow-b { background: var(--purple);  top: -100px; right: -200px; opacity: .25; }

.hero-inner { position: relative; z-index: 1; }
#library { position: relative; z-index: 1; background: var(--bg); }

.brand {
  display: flex; align-items: center; gap: 18px;
  margin-bottom: 32px;
}
.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 28px;
  width: 64px; height: 64px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--purple));
  box-shadow: 0 0 30px rgba(99,102,241,.5);
  color: #fff;
  flex-shrink: 0;
}
.hero h1 {
  margin: 0 0 6px;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -.02em;
  background: linear-gradient(90deg, #fff 0%, #c4c8d8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.tagline {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
  max-width: 720px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 32px 0;
  max-width: 720px;
}
.stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
}
.stat-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font-mono);
}
.stat-label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-top: 2px;
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, background .15s ease, box-shadow .15s ease, border-color .15s;
  background: var(--bg-elev);
  color: var(--text);
  font-family: inherit;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: #fff;
  box-shadow: 0 6px 20px -6px rgba(99,102,241,.6);
}
.btn-primary:hover { box-shadow: 0 10px 30px -6px rgba(99,102,241,.7); }
.btn-accent {
  background: linear-gradient(135deg, var(--accent), #059669);
  color: #fff;
  box-shadow: 0 6px 20px -6px rgba(16,185,129,.6);
}
.btn-accent:hover { box-shadow: 0 10px 30px -6px rgba(16,185,129,.7); }
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-soft);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--text); }
.btn-sm { padding: 7px 12px; font-size: 12px; }

/* ===== Filters ===== */
.filters {
  margin: 40px 0 24px;
  display: flex; flex-direction: column; gap: 14px;
}
.search-wrap {
  position: relative;
  flex: 1;
}
.search-wrap .search-icon {
  position: absolute; top: 50%; left: 16px;
  transform: translateY(-50%);
  font-size: 16px; opacity: .6;
}
#search {
  width: 100%;
  padding: 14px 16px 14px 44px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
#search:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,.15);
}
#search::placeholder { color: var(--text-dim); }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  padding: 7px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  user-select: none;
}
.chip:hover { border-color: var(--primary); color: var(--text); }
.chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ===== Grid ===== */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin-bottom: 60px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: transform .15s, border-color .15s, box-shadow .2s;
  display: flex; flex-direction: column;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--cat-color, var(--primary));
  opacity: .8;
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--cat-color, var(--primary));
  box-shadow: 0 12px 30px -10px rgba(0,0,0,.4);
}
.card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.cat-tag {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  color: #fff;
  background: var(--cat-color, var(--primary));
}
.market-tag {
  font-size: 11px;
  color: var(--text-dim);
  background: var(--bg-elev);
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
}
.card h3 {
  margin: 12px 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.01em;
}
.card p {
  margin: 0 0 14px;
  color: var(--text-soft);
  font-size: 13.5px;
  flex: 1;
  line-height: 1.55;
}
.card-foot {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px;
  color: var(--text-dim);
  border-top: 1px solid var(--border-soft);
  padding-top: 12px;
  margin-top: auto;
}
.card-foot .src {
  font-family: var(--font-mono);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  max-width: 65%;
}
.card-foot .arrow { color: var(--cat-color, var(--primary)); font-weight: 600; }

/* Category colors */
.card[data-cat="Technical Indicators"] { --cat-color: var(--cat-tech); }
.card[data-cat="Risk Management"]      { --cat-color: var(--cat-risk); }
.card[data-cat="Performance Metrics"]  { --cat-color: var(--cat-perf); }
.card[data-cat="Crypto Specific"]      { --cat-color: var(--cat-crypto); }
.card[data-cat="Strategies"]           { --cat-color: var(--cat-strat); }

.chip[data-cat="Technical Indicators"] { --chip-color: var(--cat-tech); }
.chip[data-cat="Risk Management"]      { --chip-color: var(--cat-risk); }
.chip[data-cat="Performance Metrics"]  { --chip-color: var(--cat-perf); }
.chip[data-cat="Crypto Specific"]      { --chip-color: var(--cat-crypto); }
.chip[data-cat="Strategies"]           { --chip-color: var(--cat-strat); }
.chip:not(.all) {
  position: relative;
}
.chip:not(.all)::before {
  content: '';
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--chip-color);
  margin-right: 6px;
  vertical-align: middle;
}
.chip.active[data-cat] {
  background: var(--chip-color);
  border-color: var(--chip-color);
}

.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-soft);
}
.empty-emoji { font-size: 48px; margin-bottom: 12px; }

/* ===== Tools Section ===== */
.tools-section {
  margin: 56px 0 24px;
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-soft) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 32px;
  position: relative;
  overflow: hidden;
}
.tools-section::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 300px; height: 300px;
  background: var(--accent);
  filter: blur(120px);
  opacity: .12;
  pointer-events: none;
}
.tools-head { margin-bottom: 20px; position: relative; z-index: 1; }
.tools-head h2 { margin: 0 0 6px; font-size: 24px; font-weight: 800; letter-spacing: -.01em; }
.tools-head p { margin: 0; color: var(--text-soft); font-size: 14.5px; max-width: 720px; }

.tools-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}
.tool-tab {
  padding: 8px 14px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  font-family: inherit;
}
.tool-tab:hover { color: var(--text); border-color: var(--accent); }
.tool-tab.active {
  background: linear-gradient(135deg, var(--accent), #059669);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 4px 16px -4px rgba(16,185,129,.5);
}

.tool-panel {
  display: none;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 22px;
  position: relative;
  z-index: 1;
}
.tool-panel.active { display: block; animation: fadeIn .15s ease; }
.tool-panel h3 { margin: 0 0 4px; font-size: 18px; font-weight: 700; }
.tool-desc { margin: 0 0 18px; color: var(--text-soft); font-size: 13.5px; }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.tool-grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: .04em;
  font-weight: 600;
}
.tool-grid input,
.tool-grid select {
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font-mono);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.tool-grid input:focus,
.tool-grid select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(16,185,129,.15);
}

.tool-out {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  min-height: 60px;
}
.tool-out .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  font-size: 14px;
  border-bottom: 1px dashed var(--border-soft);
}
.tool-out .row:last-child { border-bottom: none; }
.tool-out .lbl { color: var(--text-soft); }
.tool-out .val {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text);
}
.tool-out .val.good { color: var(--accent); }
.tool-out .val.warn { color: var(--warn); }

.notice {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 6px;
  font-size: 13px;
  border-left: 3px solid var(--info);
  background: rgba(6,182,212,.08);
  color: #a5f3fc;
}
.notice-good { border-color: var(--accent); background: rgba(16,185,129,.08); color: #a7f3d0; }
.notice-warn { border-color: var(--warn); background: rgba(245,158,11,.08); color: #fde68a; }
.notice-info { border-color: var(--info); background: rgba(6,182,212,.08); color: #a5f3fc; }

.table-wrap { margin-top: 14px; max-height: 280px; overflow-y: auto; border: 1px solid var(--border-soft); border-radius: 6px; }
.tool-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.tool-table th, .tool-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-soft);
}
.tool-table th {
  background: var(--bg-elev);
  color: var(--text-soft);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  position: sticky;
  top: 0;
  z-index: 1;
}
.tool-table td { font-family: var(--font-mono); color: var(--text); }

/* ===== Legend ===== */
.legend {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 60px;
}
.legend h2 {
  margin: 0 0 12px;
  font-size: 20px;
  color: var(--text);
}
.legend p { color: var(--text-soft); margin: 0 0 10px; }
.legend code {
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--primary-glow);
}
.disclaimer {
  margin-top: 16px;
  padding: 12px 16px;
  background: rgba(245,158,11,.08);
  border-left: 3px solid var(--warn);
  border-radius: 4px;
  color: #fde68a;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border-soft);
  padding: 24px 0;
  font-size: 13px;
  color: var(--text-dim);
  text-align: center;
}
.footer p { margin: 0; }
.footer a { color: var(--text-soft); }
.footer a:hover { color: var(--primary-glow); }

/* ===== Modal ===== */
.modal {
  position: fixed; inset: 0;
  z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.modal[hidden] { display: none; }
.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeIn .15s ease;
}
.modal-card {
  position: relative;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 920px;
  width: 100%;
  max-height: 90vh;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: slideUp .2s ease;
}
@keyframes fadeIn { from { opacity: 0 } to { opacity: 1 } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px) } to { opacity: 1; transform: none } }

.modal-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-soft);
}
.modal-cat {
  display: inline-block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 700;
  color: var(--primary-glow);
  margin-bottom: 4px;
}
#modal-title { margin: 0 0 4px; font-size: 22px; }
.modal-meta { font-size: 12px; color: var(--text-dim); }
.modal-actions { display: flex; gap: 8px; flex-shrink: 0; }

.modal-body {
  padding: 24px 28px;
  overflow-y: auto;
  flex: 1;
}

/* Markdown body */
.markdown-body { color: var(--text); line-height: 1.7; }
.markdown-body h1, .markdown-body h2, .markdown-body h3 {
  color: var(--text);
  margin-top: 24px;
  margin-bottom: 12px;
  letter-spacing: -.01em;
}
.markdown-body h1 { font-size: 24px; border-bottom: 1px solid var(--border-soft); padding-bottom: 8px; }
.markdown-body h2 { font-size: 19px; }
.markdown-body h3 { font-size: 16px; }
.markdown-body h1:first-child, .markdown-body h2:first-child { margin-top: 0; }
.markdown-body p { margin: 0 0 12px; }
.markdown-body strong { color: var(--text); }
.markdown-body code {
  background: var(--bg-elev);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: var(--font-mono);
  color: #f0abfc;
}
.markdown-body pre {
  background: #0a0d14;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  overflow-x: auto;
  margin: 0 0 16px;
}
.markdown-body pre code {
  background: transparent;
  padding: 0;
  color: #d1d5db;
  font-size: 13px;
  line-height: 1.55;
  display: block;
}
.markdown-body ul, .markdown-body ol { padding-left: 24px; margin: 0 0 12px; }
.markdown-body li { margin-bottom: 4px; }
.markdown-body table {
  border-collapse: collapse;
  width: 100%;
  margin: 0 0 16px;
  font-size: 13.5px;
}
.markdown-body th, .markdown-body td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: left;
}
.markdown-body th { background: var(--bg-elev); color: var(--text); }
.markdown-body blockquote {
  border-left: 3px solid var(--primary);
  margin: 0 0 12px;
  padding: 4px 16px;
  color: var(--text-soft);
  background: var(--bg-card);
  border-radius: 0 6px 6px 0;
}
.markdown-body a { color: var(--primary-glow); }
.markdown-body hr { border: 0; border-top: 1px solid var(--border-soft); margin: 20px 0; }

/* Scrollbar */
.modal-body::-webkit-scrollbar,
.table-wrap::-webkit-scrollbar { width: 8px; }
.modal-body::-webkit-scrollbar-track,
.table-wrap::-webkit-scrollbar-track { background: transparent; }
.modal-body::-webkit-scrollbar-thumb,
.table-wrap::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.modal-body::-webkit-scrollbar-thumb:hover,
.table-wrap::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ===== Support / Donate Section ===== */
.support-section {
  margin: 24px 0 60px;
  background: linear-gradient(180deg, var(--bg-card) 0%, var(--bg-soft) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
}
.support-section::before {
  content: '';
  position: absolute;
  top: -60px; left: -60px;
  width: 280px; height: 280px;
  background: linear-gradient(135deg, #f59e0b, #ec4899);
  filter: blur(120px);
  opacity: .10;
  pointer-events: none;
}
.support-section h2 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.01em;
  position: relative;
  z-index: 1;
}
.support-sub {
  margin: 0 0 20px;
  color: var(--text-soft);
  font-size: 14.5px;
  max-width: 720px;
  position: relative;
  z-index: 1;
}
.donate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  position: relative;
  z-index: 1;
}
.donate-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
}
.donate-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  opacity: .85;
}
.donate-paypal::before { background: linear-gradient(90deg, #003087, #0070ba, #009cde); }
.donate-solana::before { background: linear-gradient(90deg, #9945ff, #14f195); }

.donate-head {
  display: flex;
  align-items: center;
  gap: 14px;
}
.donate-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 20px;
  color: #fff;
  flex-shrink: 0;
  font-family: var(--font-mono);
}
.donate-icon-paypal {
  background: linear-gradient(135deg, #003087, #0070ba);
  box-shadow: 0 6px 20px -6px rgba(0, 112, 186, .5);
}
.donate-icon-solana {
  background: linear-gradient(135deg, #9945ff, #14f195);
  box-shadow: 0 6px 20px -6px rgba(153, 69, 255, .5);
  font-size: 22px;
}
.donate-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}
.donate-sub {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-top: 2px;
}
.donate-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid var(--border-soft);
  padding-top: 12px;
}
.donate-handle, .donate-net {
  font-family: var(--font-mono);
}
.donate-net strong { color: var(--text-soft); font-weight: 600; }

.btn-paypal {
  background: linear-gradient(135deg, #003087, #0070ba);
  color: #fff;
  justify-content: center;
  box-shadow: 0 6px 20px -6px rgba(0, 112, 186, .5);
}
.btn-paypal:hover {
  background: linear-gradient(135deg, #003087, #009cde);
  box-shadow: 0 10px 30px -6px rgba(0, 112, 186, .7);
}

.wallet-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}
.wallet-addr {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-soft);
  background: transparent;
  border: none;
  padding: 0;
  word-break: break-all;
  line-height: 1.4;
  cursor: text;
  user-select: all;
}
.btn-copy {
  flex-shrink: 0;
  font-size: 11px;
  padding: 6px 10px;
  background: var(--bg-elev);
  color: var(--text-soft);
  border: 1px solid var(--border);
}
.btn-copy:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-copy.copied {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.support-note {
  margin: 18px 0 0;
  padding: 10px 14px;
  background: rgba(245,158,11,.08);
  border-left: 3px solid var(--warn);
  border-radius: 4px;
  color: #fde68a;
  font-size: 13px;
  position: relative;
  z-index: 1;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .hero { padding: 40px 0 32px; }
  .container { padding: 0 16px; }
  .grid { grid-template-columns: 1fr; }
  .modal { padding: 0; }
  .modal-card { max-height: 100vh; border-radius: 0; }
  .modal-head { flex-direction: column; padding: 16px; }
  .modal-actions { width: 100%; flex-wrap: wrap; }
  .modal-body { padding: 16px 20px; }
  .tools-section { padding: 20px 18px 24px; }
  .tool-panel { padding: 16px; }
}