/* ============================================================
   STACKMINER – v2  |  stackminer.com
   Clean, minimal, CoinMarketCap-inspired design
   Font: Inter (system-clean, no decorative)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg:       #0d1117;
  --bg2:      #161b22;
  --bg3:      #1c2333;
  --border:   #21262d;
  --border2:  #30363d;
  --gold:     #f0b429;
  --gold-d:   #d4941a;
  --cyan:     #58a6ff;
  --green:    #3fb950;
  --red:      #f85149;
  --text:     #e6edf3;
  --text2:    #8b949e;
  --text3:    #6e7681;
  --radius:   8px;
  --shadow:   0 1px 3px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.2);
  --trans:    0.15s ease;
  --f:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--f);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--text); text-decoration: none; transition: color var(--trans); }
a:hover { color: var(--cyan); }
img { display: block; max-width: 100%; }

.container { max-width: 1400px; margin: 0 auto; padding: 0 20px; }

/* ── Ticker ───────────────────────────────────────────────── */
.ticker-bar {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  height: 32px;
  overflow: hidden;
  display: flex;
  align-items: center;
  font-size: 12px;
}
.ticker-inner {
  display: inline-flex;
  gap: 32px;
  white-space: nowrap;
  animation: scroll-x 50s linear infinite;
  padding: 0 20px;
}
.ticker-item { display: inline-flex; align-items: center; gap: 5px; color: var(--text2); }
.ticker-item strong { color: var(--text); font-weight: 500; }
.up   { color: var(--green); }
.down { color: var(--red); }
@keyframes scroll-x { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ── Top Bar (global stats) ──────────────────────────────── */
.top-bar {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0;
  font-size: 12px;
  color: var(--text2);
}
.top-bar-inner {
  display: flex;
  align-items: center;
  height: 40px;
  gap: 20px;
  overflow-x: auto;
  scrollbar-width: none;
}
.top-bar-inner::-webkit-scrollbar { display: none; }
.tbs { white-space: nowrap; }
.tbs span { color: var(--text); font-weight: 500; margin-left: 4px; }

/* ── Header / Nav ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 300;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 60px;
  gap: 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-right: 32px;
  white-space: nowrap;
  flex-shrink: 0;
}
.logo-icon { color: var(--gold); font-size: 20px; }
.logo span.accent { color: var(--gold); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  overflow: hidden;
}
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  height: 60px;
}
.nav-item > a, .nav-item > span {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 14px;
  height: 100%;
  font-size: 14px;
  font-weight: 500;
  color: var(--text2);
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--trans);
}
.nav-item > a:hover, .nav-item > span:hover,
.nav-item > a.active { color: var(--text); border-bottom-color: var(--gold); }

/* dropdown */
.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  min-width: 200px;
  padding: 8px 0;
  box-shadow: var(--shadow);
  z-index: 400;
}
.nav-item:hover .nav-dropdown { display: block; }
.nav-dropdown a {
  display: block;
  padding: 9px 18px;
  font-size: 13px;
  color: var(--text2);
  transition: background var(--trans), color var(--trans);
}
.nav-dropdown a:hover { background: var(--bg3); color: var(--text); }
.nav-dropdown .dgroup { padding: 6px 18px 2px; font-size: 11px; font-weight: 600; text-transform: uppercase; color: var(--text3); letter-spacing: 0.8px; margin-top: 4px; }

/* buy miners nav highlight */
.nav-cta-wrap { margin-left: auto; display: flex; gap: 10px; align-items: center; flex-shrink: 0; }
.btn-miners {
  background: var(--gold);
  color: #000 !important;
  padding: 8px 18px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  transition: background var(--trans);
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-miners:hover { background: var(--gold-d); color: #000 !important; }
.btn-login {
  background: transparent;
  color: var(--text2) !important;
  padding: 8px 18px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 13px;
  border: 1px solid var(--border2);
  transition: all var(--trans);
}
.btn-login:hover { color: var(--text) !important; border-color: var(--text2); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* ── Hero Banner ──────────────────────────────────────────── */
.hero {
  background: var(--bg);
  padding: 40px 0 32px;
  border-bottom: 1px solid var(--border);
}
.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.hero-text h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 8px;
}
.hero-text h1 em { font-style: normal; color: var(--gold); }
.hero-text p { font-size: 14px; color: var(--text2); max-width: 480px; }
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.hero-stat { text-align: right; }
.hero-stat .val { font-size: 22px; font-weight: 700; color: var(--text); }
.hero-stat .lbl { font-size: 12px; color: var(--text2); margin-top: 2px; }

/* ── Global Stats Pills ───────────────────────────────────── */
.global-strip {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.global-strip::-webkit-scrollbar { display: none; }
.global-strip-inner {
  display: flex;
  gap: 28px;
  align-items: center;
  white-space: nowrap;
  font-size: 13px;
  color: var(--text2);
}
.gp-lbl { font-size: 12px; color: var(--text3); }
.gp-val { font-weight: 600; color: var(--text); margin-left: 4px; }
.gp-sep { color: var(--border2); user-select: none; }

/* ── Section Header ───────────────────────────────────────── */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 0;
  flex-wrap: wrap;
  gap: 12px;
}
.section-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  width: 100%;
  margin-bottom: 0;
}
.s-tab {
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text2);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--trans);
  white-space: nowrap;
}
.s-tab:hover { color: var(--text); }
.s-tab.active { color: var(--text); border-bottom-color: var(--gold); }

/* ── Market Table ─────────────────────────────────────────── */
.market-table-wrap { overflow-x: auto; }
.market-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 900px;
}
.market-table th {
  padding: 10px 14px;
  text-align: right;
  font-size: 12px;
  font-weight: 500;
  color: var(--text3);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  background: var(--bg);
  position: sticky;
  top: 60px;
  z-index: 5;
}
.market-table th:first-child,
.market-table th:nth-child(2),
.market-table th:nth-child(3) { text-align: left; }
.market-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  text-align: right;
  vertical-align: middle;
  white-space: nowrap;
}
.market-table td:first-child,
.market-table td:nth-child(2),
.market-table td:nth-child(3) { text-align: left; }
.market-table tr:hover td { background: rgba(255,255,255,0.02); }

.coin-row-name {
  display: flex;
  align-items: center;
  gap: 10px;
}
.coin-img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: contain;
  background: var(--bg3);
  flex-shrink: 0;
}
.coin-name-wrap {}
.coin-name   { font-weight: 600; font-size: 14px; color: var(--text); }
.coin-symbol { font-size: 12px; color: var(--text3); margin-top: 1px; }

.rank { font-size: 13px; color: var(--text3); font-weight: 400; }
.price-cell { font-weight: 600; color: var(--text); }
.cap-cell, .vol-cell, .sup-cell { color: var(--text2); }
.up   { color: var(--green); }
.down { color: var(--red); }

/* sparkline */
.spark-cell { width: 100px; }
.spark-svg { display: block; }

/* ── Miners Section ───────────────────────────────────────── */
.miners-section { padding: 40px 0 60px; }
.miners-section .sh {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}
.miners-section .sh em { font-style: normal; color: var(--gold); }
.miners-sub { font-size: 14px; color: var(--text2); margin-bottom: 28px; }

/* Filter row */
.miner-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 24px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.mf-select, .mf-input {
  background: var(--bg2);
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: var(--f);
  font-size: 13px;
  outline: none;
  transition: border-color var(--trans);
}
.mf-select:focus, .mf-input:focus { border-color: var(--gold); }
.mf-input { min-width: 220px; }
.mf-search-btn {
  background: var(--gold);
  color: #000;
  border: none;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: background var(--trans);
  font-family: var(--f);
}
.mf-search-btn:hover { background: var(--gold-d); }
.mf-clear { font-size: 13px; color: var(--text3); padding: 8px; cursor: pointer; }
.mf-clear:hover { color: var(--red); }

/* Miner Cards Grid */
.miners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.miner-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--trans), box-shadow var(--trans);
  position: relative;
}
.miner-card:hover {
  border-color: var(--border2);
  box-shadow: var(--shadow);
}
.miner-card.featured { border-color: rgba(240,180,41,0.3); }

.feat-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: rgba(240,180,41,0.15);
  border: 1px solid rgba(240,180,41,0.4);
  color: var(--gold);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 20px;
}
.miner-top { display: flex; align-items: flex-start; gap: 14px; }
.miner-img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  background: var(--bg3);
  border-radius: 8px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.miner-info .brand { font-size: 12px; color: var(--text3); margin-bottom: 3px; }
.miner-info .mname { font-size: 16px; font-weight: 700; color: var(--text); line-height: 1.2; }
.miner-info .algo  { font-size: 12px; color: var(--text2); margin-top: 4px; }
.miner-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.mspec {
  background: var(--bg3);
  padding: 8px 10px;
  border-radius: 6px;
}
.mspec-l { font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.5px; }
.mspec-v { font-size: 13px; font-weight: 600; color: var(--text); margin-top: 2px; }
.miner-coins { display: flex; flex-wrap: wrap; gap: 5px; }
.cpill {
  background: rgba(88,166,255,0.08);
  border: 1px solid rgba(88,166,255,0.2);
  color: var(--cyan);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
}
.miner-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  gap: 10px;
}
.miner-price  { font-size: 20px; font-weight: 700; color: var(--text); }
.miner-comm   { font-size: 12px; color: var(--green); margin-top: 2px; }
.miner-actions { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.btn-buy {
  display: inline-block;
  background: var(--gold);
  color: #000 !important;
  padding: 7px 16px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  transition: background var(--trans);
}
.btn-buy:hover { background: var(--gold-d); }
.btn-view {
  display: inline-block;
  color: var(--cyan) !important;
  font-size: 12px;
  text-align: center;
}
.btn-view:hover { color: var(--text) !important; }
.miner-meta { font-size: 11px; color: var(--text3); }
.compare-box { margin-top: 2px; }
.compare-box input { accent-color: var(--gold); width: 14px; height: 14px; cursor: pointer; }
.compare-box label { font-size: 11px; color: var(--text3); margin-left: 4px; cursor: pointer; }

/* ── Info Strip ───────────────────────────────────────────── */
.info-strip {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin: 0 0 40px;
  display: flex;
  gap: 40px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.info-block h3 { font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.info-block p  { font-size: 13px; color: var(--text2); line-height: 1.7; max-width: 320px; }

/* ── Affiliate Section ────────────────────────────────────── */
.earn-strip {
  background: linear-gradient(135deg, rgba(240,180,41,0.08) 0%, rgba(88,166,255,0.04) 100%);
  border: 1px solid rgba(240,180,41,0.2);
  border-radius: var(--radius);
  padding: 32px 36px;
  margin: 40px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.earn-strip h2 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.earn-strip h2 em { font-style: normal; color: var(--gold); }
.earn-strip p { font-size: 14px; color: var(--text2); }
.earn-strip .steps { display: flex; gap: 24px; flex-wrap: wrap; margin-top: 14px; }
.earn-step { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text2); }
.earn-step .n { width: 24px; height: 24px; border-radius: 50%; background: var(--gold); color: #000; font-weight: 700; font-size: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.btn-earn {
  display: inline-block;
  background: var(--gold);
  color: #000 !important;
  padding: 12px 28px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  transition: background var(--trans);
  flex-shrink: 0;
}
.btn-earn:hover { background: var(--gold-d); }

/* ── Forms / Auth ─────────────────────────────────────────── */
.auth-outer { max-width: 460px; margin: 60px auto; padding: 0 20px; }
.auth-card  {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
}
.auth-card h2 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.auth-card .sub { font-size: 14px; color: var(--text2); margin-bottom: 28px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text2);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 6px;
  font-family: var(--f);
  font-size: 14px;
  outline: none;
  transition: border-color var(--trans);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--gold); }
.form-group textarea { resize: vertical; min-height: 80px; }
.submit-btn {
  width: 100%;
  background: var(--gold);
  color: #000;
  border: none;
  padding: 12px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  font-family: var(--f);
  transition: background var(--trans);
}
.submit-btn:hover { background: var(--gold-d); }
.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 18px; font-size: 13px; }
.alert-err { background: rgba(248,81,73,0.1); border: 1px solid rgba(248,81,73,0.3); color: #ff6b6b; }
.alert-ok  { background: rgba(63,185,80,0.1); border: 1px solid rgba(63,185,80,0.3); color: var(--green); }

/* ── Dashboard ────────────────────────────────────────────── */
.dash-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 32px; }
.dash-card  { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.dash-card .dval { font-size: 28px; font-weight: 700; color: var(--gold); }
.dash-card .dlbl { font-size: 12px; color: var(--text2); margin-top: 4px; }
.ref-link-row {
  display: flex;
  gap: 10px;
  align-items: center;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.ref-link-row input {
  flex: 1;
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--gold);
  padding: 9px 14px;
  border-radius: 6px;
  font-size: 13px;
  outline: none;
  min-width: 200px;
  font-family: monospace;
}
.copy-btn {
  background: var(--gold);
  color: #000;
  border: none;
  padding: 9px 20px;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--f);
  font-size: 13px;
  transition: background var(--trans);
}
.copy-btn:hover { background: var(--gold-d); }

/* ── Tables (generic) ─────────────────────────────────────── */
.tbl-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
th { font-size: 11px; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text3); background: var(--bg2); font-weight: 500; }
tr:hover td { background: rgba(255,255,255,0.015); }

/* ── Admin ────────────────────────────────────────────────── */
.admin-wrap { display: flex; min-height: 100vh; }
.admin-side {
  width: 220px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  flex-direction: column;
  display: flex;
}
.admin-logo {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
}
.admin-logo .logo-icon { color: var(--gold); font-size: 18px; }
.admin-nav { padding: 8px 0; flex: 1; }
.admin-nav a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 20px;
  color: var(--text2);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--trans);
  border-left: 2px solid transparent;
}
.admin-nav a:hover { color: var(--text); background: rgba(255,255,255,0.02); }
.admin-nav a.active { color: var(--text); background: rgba(240,180,41,0.06); border-left-color: var(--gold); }
.admin-nav .nav-danger { color: var(--red) !important; }
.admin-main { margin-left: 220px; padding: 36px; flex: 1; }
.admin-top  { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; flex-wrap: wrap; gap: 12px; }
.admin-top h1 { font-size: 24px; font-weight: 700; }

/* Buttons */
.btn-primary {
  display: inline-block;
  background: var(--gold);
  color: #000;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  border: none;
  cursor: pointer;
  font-family: var(--f);
  transition: background var(--trans);
  text-align: center;
}
.btn-primary:hover { background: var(--gold-d); color: #000; }
.btn-secondary {
  display: inline-block;
  background: transparent;
  color: var(--text2);
  padding: 9px 18px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 13px;
  border: 1px solid var(--border2);
  cursor: pointer;
  font-family: var(--f);
  transition: all var(--trans);
  text-align: center;
}
.btn-secondary:hover { color: var(--text); border-color: var(--text2); }

/* ── Compare bar ──────────────────────────────────────────── */
.cmp-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--bg2);
  border-top: 1px solid var(--gold);
  padding: 12px 24px;
  z-index: 200;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 13px;
}

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 48px 0 0;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 40px;
}
.footer-brand p { font-size: 13px; color: var(--text2); margin-top: 10px; line-height: 1.8; max-width: 280px; }
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text2); margin-bottom: 4px; }
.footer-col a  { font-size: 13px; color: var(--text3); }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 16px 0;
  font-size: 12px;
  color: var(--text3);
}
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav .nav-item:nth-child(n+5) { display: none; }
}
@media (max-width: 768px) {
  .main-nav  { display: none; }
  .nav-toggle { display: flex; }
  .admin-side { display: none; }
  .admin-main { margin-left: 0; padding: 20px; }
  .market-table th:nth-child(n+5),
  .market-table td:nth-child(n+5) { display: none; }
}
@media (max-width: 640px) {
  .miners-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero h1     { font-size: 22px; }
  .earn-strip  { flex-direction: column; }
  .hero-inner  { flex-direction: column; align-items: flex-start; }
  .hero-stats  { flex-direction: row; }
}