/* Simple dark theme for Grain Board Free MVP */
:root{--bg:#0b0f14;--card:#0f1720;--muted:#94a3b8;--accent:#60a5fa;--font-sans:'IBM Plex Sans',system-ui,-apple-system,sans-serif;--font-mono:'IBM Plex Mono',ui-monospace,monospace}
*{box-sizing:border-box;font-family:var(--font-sans)}
html,body{height:100%;background:var(--bg);color:#e6eef8;margin:0}
.container{max-width:1100px;margin:24px auto;padding:16px}
.nav{background:linear-gradient(180deg,#111a25,#0d141c);padding:12px 28px;border-bottom:1px solid rgba(255,255,255,0.08);box-shadow:0 2px 12px rgba(0,0,0,0.35),inset 0 1px 0 rgba(255,255,255,0.03)}
.nav-inner{width:100%;max-width:1600px;margin:0 auto;padding:0 12px;display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.site-logo{height:46px;width:auto;display:block}
.badge-free-nav{background:rgba(255,255,255,0.06);color:var(--muted);padding:2px 8px;border-radius:12px;font-size:0.65rem;font-weight:600;text-transform:uppercase;letter-spacing:0.5px;border:1px solid rgba(255,255,255,0.08)}
.nav nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav a{color:var(--muted);text-decoration:none;padding:8px 12px;border-radius:6px;position:relative;display:inline-flex;align-items:center;gap:4px;transition:all 0.2s}
.nav a.active, .nav a:hover{background:rgba(255,255,255,0.06);color:#fff}
.nav-tools{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.nav-separator{width:1px;height:24px;background:rgba(255,255,255,0.15);margin:0 8px}
.nav-account{display:flex;align-items:center;gap:4px}
.nav-account-link{opacity:0.85}
.nav-account-link:hover{opacity:1}
.nav-badge-premium{display:inline-block;font-size:0.7rem;color:#f59e0b;font-weight:bold;margin-left:2px;animation:pulse-star 2s ease-in-out infinite}
@keyframes pulse-star{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.6;transform:scale(1.2)}}
.badge-premium-nav{background:linear-gradient(135deg,#f59e0b,#ef4444);padding:2px 8px;border-radius:12px;font-size:0.65rem;font-weight:600;text-transform:uppercase;letter-spacing:0.5px;margin-left:6px}
.nav-btn-premium{color:#e6eef8 !important;border:1px solid rgba(255,255,255,0.15);background:rgba(255,255,255,0.03)}
.nav-btn-premium:hover{border-color:rgba(255,255,255,0.25);background:rgba(255,255,255,0.06) !important}
.card{background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent);padding:16px;border-radius:8px;border:1px solid rgba(255,255,255,0.03)}
.grid{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:800px){.grid{grid-template-columns:1fr 1fr}}
.spinner{width:36px;height:36px;border:4px solid rgba(255,255,255,0.05);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite;margin:18px auto}
@keyframes spin{to{transform:rotate(360deg)}}
.table{width:100%;border-collapse:collapse;margin-top:8px}
.table th,.table td{padding:8px;border-bottom:1px dashed rgba(255,255,255,0.03);text-align:left;font-size:14px}
.table tbody tr:nth-child(even){background:rgba(255,255,255,0.08)}
.table tbody tr:hover{background:rgba(255,255,255,0.13)}
.muted{color:var(--muted);font-size:13px}
.pos{color:#34d399} .neg{color:#fb7185}
.indicator{display:inline-block;margin-left:8px}
.login-wrap{max-width:420px;margin:60px auto}
.hint{font-size:13px;color:var(--muted);margin-top:8px}

/* Premium pages styles */
.premium-page{max-width:1100px;margin:0 auto;padding:24px}
.premium-header{text-align:center;margin-bottom:32px}
.premium-header h1{font-size:2.5rem;margin:0;display:flex;align-items:center;justify-content:center;gap:12px}
.premium-header .subtitle{color:var(--muted);font-size:1.1rem;margin-top:8px}
.badge-premium{background:linear-gradient(135deg,#f59e0b,#ef4444);padding:4px 12px;border-radius:16px;font-size:0.75rem;font-weight:600;text-transform:uppercase;letter-spacing:0.5px}

/* Premium overlay system */
.premium-overlay-wrapper{position:relative;min-height:400px}
.premium-content-blurred{filter:blur(8px);opacity:0.3;pointer-events:none;user-select:none}
.premium-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;background:rgba(11,15,20,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.premium-cta-box{text-align:center;max-width:480px;padding:32px;background:linear-gradient(180deg,rgba(255,255,255,0.05),rgba(255,255,255,0.02));border-radius:16px;border:1px solid rgba(255,255,255,0.08)}
.premium-icon{font-size:3rem;margin-bottom:16px;opacity:0.8}
.premium-cta-box h2{margin:0 0 12px 0;font-size:1.8rem}
.premium-cta-box p{color:var(--muted);margin:12px 0;line-height:1.6}
.premium-benefits{background:rgba(96,165,250,0.05);padding:16px;border-radius:8px;border-left:3px solid var(--accent);text-align:left;margin:20px 0}

/* Skeleton loaders */
.skeleton-table{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.skeleton-row{display:flex;align-items:center;gap:8px}
.skeleton-bar{height:20px;background:linear-gradient(90deg,rgba(255,255,255,0.03),rgba(255,255,255,0.08),rgba(255,255,255,0.03));background-size:200% 100%;animation:skeleton-pulse 1.5s ease-in-out infinite;border-radius:4px}
.skeleton-chart{background:linear-gradient(90deg,rgba(255,255,255,0.03),rgba(255,255,255,0.08),rgba(255,255,255,0.03));background-size:200% 100%;animation:skeleton-pulse 1.5s ease-in-out infinite;border-radius:8px;margin-top:16px;display:flex;align-items:flex-end;padding:20px}
@keyframes skeleton-pulse{0%,100%{background-position:0% 0%}50%{background-position:100% 0%}}

/* Buttons */
.btn{display:inline-block;padding:12px 24px;margin:8px;border-radius:8px;text-decoration:none;font-weight:600;transition:all 0.2s;border:none;cursor:pointer;font-size:1rem}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#3b82f6;transform:translateY(-2px);box-shadow:0 4px 12px rgba(96,165,250,0.3)}
.btn-accent{background:linear-gradient(135deg,#f59e0b,#ef4444);color:#fff}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(245,158,11,0.3)}

/* Data table (for premium content) */
.data-table{width:100%;border-collapse:collapse;margin-top:16px}
.data-table thead{background:rgba(255,255,255,0.02)}
.data-table th{padding:12px;text-align:left;font-weight:600;border-bottom:2px solid rgba(255,255,255,0.08)}
.data-table td{padding:12px;border-bottom:1px solid rgba(255,255,255,0.03)}
.data-table tbody tr:nth-child(even){background:rgba(255,255,255,0.08)}
.data-table tbody tr:hover{background:rgba(255,255,255,0.13)}
.badge-confidence{background:rgba(52,211,153,0.15);color:#34d399;padding:4px 8px;border-radius:4px;font-size:0.85rem;font-weight:600}

/* Loading spinner */
.loading-spinner{text-align:center;padding:40px;color:var(--muted)}
.loading-spinner::after{content:"";display:block;width:40px;height:40px;margin:16px auto;border:4px solid rgba(255,255,255,0.1);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}

/* Error card */
.error-card{background:rgba(239,68,68,0.1);border:1px solid rgba(239,68,68,0.3);padding:16px;border-radius:8px}
.error-card a{color:var(--accent);text-decoration:none;font-weight:600}
.error-card a:hover{text-decoration:underline}

/* ============================================ */
/* Site footer                                  */
/* ============================================ */
.site-footer{margin-top:48px;padding:32px 28px 8px;background:linear-gradient(180deg,#0d141c,#0a1017);border-top:1px solid rgba(255,255,255,0.08);box-shadow:0 -2px 12px rgba(0,0,0,0.25),inset 0 1px 0 rgba(255,255,255,0.03);color:var(--muted);font-size:13px}
.footer-inner{max-width:1600px;margin:0 auto;padding:0 12px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:24px}
@media(max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;gap:24px}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}
.footer-col h4{color:#fff;font-size:16px;margin:0 0 10px 0;letter-spacing:0.2px}
.footer-col h5{color:#e6eef8;font-size:12px;margin:0 0 12px 0;text-transform:uppercase;letter-spacing:0.8px;font-weight:600;opacity:0.85}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.footer-col ul a{color:var(--muted);text-decoration:none;transition:color 0.15s}
.footer-col ul a:hover{color:#fff}
.footer-brand .footer-tagline{margin:0 0 12px 0;line-height:1.5;max-width:320px}
.footer-brand .footer-company{margin:0;line-height:1.5;font-size:12px;color:var(--muted)}
.footer-brand .footer-company strong{color:#e6eef8}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding:16px 0;border-top:1px solid rgba(255,255,255,0.08);font-size:12px;color:var(--muted)}
.footer-bottom .footer-disclaimer{opacity:0.75;font-style:italic}

/* ============================================ */
/* Legal pages (legal, terms, privacy)          */
/* ============================================ */
.legal-page{max-width:820px;margin:0 auto;padding:16px 0 32px}
.legal-header{text-align:left;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,0.06)}
.legal-header h1{font-size:2rem;margin:0 0 6px 0;color:#fff}
.legal-updated{color:var(--muted);font-size:13px;margin:0;font-family:var(--font-mono)}
.legal-content{display:flex;flex-direction:column;gap:16px}
.legal-section{line-height:1.65}
.legal-section h2{font-size:1.15rem;margin:0 0 12px 0;color:#fff;padding-bottom:6px;border-bottom:1px solid rgba(255,255,255,0.05)}
.legal-section h3{font-size:1rem;margin:18px 0 8px 0;color:#e6eef8}
.legal-section p{margin:0 0 10px 0;color:#cbd5e1}
.legal-section p:last-child{margin-bottom:0}
.legal-section ul{margin:8px 0 12px 0;padding-left:20px;color:#cbd5e1}
.legal-section ul li{margin-bottom:6px;line-height:1.55}
.legal-section a{color:var(--accent);text-decoration:none}
.legal-section a:hover{text-decoration:underline}
.legal-section strong{color:#fff}
.legal-section code{font-family:var(--font-mono);background:rgba(255,255,255,0.05);padding:1px 6px;border-radius:4px;font-size:0.9em;color:#e6eef8}
.legal-intro{background:linear-gradient(180deg,rgba(96,165,250,0.04),transparent);border-left:3px solid var(--accent)}
.table-wrapper{overflow-x:auto;margin:12px 0}
.legal-table{width:100%;border-collapse:collapse;font-size:13px}
.legal-table thead{background:rgba(255,255,255,0.03)}
.legal-table th{text-align:left;padding:10px 12px;font-weight:600;color:#fff;border-bottom:1px solid rgba(255,255,255,0.08)}
.legal-table td{padding:10px 12px;border-bottom:1px solid rgba(255,255,255,0.04);color:#cbd5e1;vertical-align:top}
.legal-table tbody tr:last-child td{border-bottom:none}

/* ==========================================================================
   Responsive header / burger menu
   ========================================================================== */
.nav-burger{display:none;flex-direction:column;justify-content:space-between;width:32px;height:24px;padding:0;background:transparent;border:0;cursor:pointer;margin-left:auto}
.nav-burger span{display:block;height:2px;width:100%;background:#fff;border-radius:2px;transition:transform .25s ease, opacity .2s ease}
.nav-burger.open span:nth-child(1){transform:translateY(11px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-11px) rotate(-45deg)}
.nav-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:90}
.nav-backdrop.open{display:block}
.primary-nav{display:flex;align-items:center;gap:4px;flex-wrap:wrap}

@media (max-width: 1300px){
  .nav{padding:10px 16px}
  .site-logo{height:44px}
  .nav-burger{display:flex;width:28px;height:20px}
  .nav-burger.open span:nth-child(1){transform:translateY(9px) rotate(45deg)}
  .nav-burger.open span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}
  .primary-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(82vw,320px);
    background:#0d141c;border-left:1px solid rgba(255,255,255,0.08);
    flex-direction:column;align-items:stretch;gap:0;padding:72px 16px 24px;
    transform:translateX(100%);transition:transform .25s ease;z-index:100;overflow-y:auto;
    box-shadow:-8px 0 24px rgba(0,0,0,0.4)
  }
  .primary-nav.open{transform:translateX(0)}
  .primary-nav .nav-tools,
  .primary-nav .nav-account{flex-direction:column;align-items:stretch;gap:2px;width:100%}
  .primary-nav a{padding:12px 14px;border-radius:8px;font-size:15px;width:100%}
  .nav-separator{width:100%;height:1px;margin:12px 0}
  body.nav-open{overflow:hidden}
}

@media (max-width: 480px){
  .site-logo{height:38px}
  .nav{padding:8px 12px}
}