/* =====================================================================
   SigForge.io — Public website shared styles
   Reuses the exact design tokens of the trading application
   (signals.html / signal.html / auth.html) so site + app feel like
   one product. Loaded by all public marketing pages.
   ===================================================================== */
:root{
  --bg:#f8fafc; --card:#ffffff; --border:#e3e8f0; --text:#0f172a;
  --muted:#64748b; --muted2:#94a3b8;
  --green:#10b981; --green-bg:rgba(16,185,129,.12);
  --red:#ef4444;   --red-bg:rgba(239,68,68,.12);
  --blue:#3b82f6;  --blue-bg:rgba(59,130,246,.12);
  --amber:#f59e0b; --amber-bg:rgba(245,158,11,.12);
  --radius:16px;
  --shadow:0 1px 3px rgba(15,23,42,.06),0 1px 2px rgba(15,23,42,.04);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);
  font-family:'Segoe UI',system-ui,-apple-system,Arial,sans-serif;
  font-size:15px;line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
img{max-width:100%}
.container{max-width:1140px;margin:0 auto;padding:0 24px;width:100%}

/* ---------------- Navigation ---------------- */
.site-nav{position:sticky;top:0;z-index:100;background:var(--card);
  border-bottom:1px solid var(--border)}
.site-nav-inner{max-width:1140px;margin:0 auto;padding:12px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.brand-logo{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,#10b981,#0ea5e9);color:#fff;font-size:22px;
  box-shadow:0 4px 12px rgba(16,185,129,.25);flex-shrink:0}
.brand-name{font-size:1.2rem;font-weight:800;letter-spacing:.3px;line-height:1.1}
.brand-name span{color:var(--green)}
.brand-tag{font-size:.68rem;font-weight:600;color:var(--muted);letter-spacing:.4px}
.nav-menu{display:flex;align-items:center;justify-content:space-between;flex:1;gap:16px;min-width:0}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{color:var(--muted);text-decoration:none;font-weight:600;font-size:.9rem;
  padding:8px 12px;border-radius:9px;white-space:nowrap}
.nav-links a:hover{color:var(--text);background:var(--bg)}
.nav-links a.active{color:var(--blue);background:var(--blue-bg)}
.nav-right{display:flex;align-items:center;gap:10px}
.theme-toggle{cursor:pointer;border:1px solid var(--border);background:var(--card);
  color:var(--text);border-radius:10px;padding:8px 12px;font-size:.8rem;font-weight:600}
.hamburger{display:none;cursor:pointer;border:1px solid var(--border);background:var(--card);
  color:var(--text);border-radius:10px;padding:8px 12px;font-size:1.05rem;line-height:1}

/* ---------------- Buttons ---------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  cursor:pointer;text-decoration:none;font-weight:700;font-size:.92rem;
  padding:11px 20px;border-radius:11px;border:1px solid transparent;
  transition:transform .05s ease,background .15s ease,border-color .15s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:#1d4ed8;color:#fff}
.btn-primary:hover{background:#1e40af}
.btn-ghost{background:var(--card);color:var(--text);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{filter:brightness(.94)}
.btn-lg{padding:14px 26px;font-size:1rem}
.btn-block{width:100%}

/* ---------------- Hero ---------------- */
.hero{padding:72px 0 56px;text-align:center;
  background:radial-gradient(ellipse 70% 55% at 50% -5%,var(--green-bg),transparent 70%)}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;
  color:#047857;background:var(--green-bg);border:1px solid rgba(16,185,129,.4);
  padding:6px 14px;border-radius:999px;letter-spacing:.5px;margin-bottom:22px}
.hero h1{font-size:clamp(2rem,4.6vw,3.3rem);font-weight:800;line-height:1.15;
  letter-spacing:-.5px;max-width:820px;margin:0 auto 18px}
.hero h1 .grad{background:linear-gradient(135deg,#10b981,#0ea5e9);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:1.08rem;color:var(--muted);max-width:680px;margin:0 auto 30px}
.hero-ctas{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:26px}
.hero-pairs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.pair-chip{font-size:.75rem;font-weight:700;padding:5px 12px;border-radius:999px;
  background:var(--card);border:1px solid var(--border);color:var(--muted)}

/* ---------------- Sections ---------------- */
.section{padding:64px 0}
.section-alt{background:var(--card);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{text-align:center;max-width:700px;margin:0 auto 44px}
.section-kicker{font-size:.75rem;font-weight:800;letter-spacing:1.2px;text-transform:uppercase;
  color:var(--green);margin-bottom:10px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;letter-spacing:-.3px;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:1rem}

/* ---------------- Cards & grids ---------------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:24px}
.card-icon{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  font-size:22px;margin-bottom:14px}
.card h3{font-size:1.05rem;font-weight:800;margin-bottom:8px}
.card p{color:var(--muted);font-size:.92rem}
.icon-green{background:var(--green-bg)}
.icon-blue{background:var(--blue-bg)}
.icon-red{background:var(--red-bg)}
.icon-amber{background:var(--amber-bg)}

/* ---------------- Steps (How it works) ---------------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:24px;position:relative}
.step-num{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,#10b981,#0ea5e9);color:#fff;font-weight:800;
  font-size:1rem;margin-bottom:14px}
.step h3{font-size:1rem;font-weight:800;margin-bottom:8px}
.step p{color:var(--muted);font-size:.9rem}

/* ---------------- App preview mock ---------------- */
.app-preview{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;max-width:920px;margin:0 auto;text-align:left}
.app-preview-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;
  border-bottom:1px solid var(--border);background:var(--bg)}
.dot{width:11px;height:11px;border-radius:50%}
.dot-r{background:#ef4444}.dot-y{background:#f59e0b}.dot-g{background:#10b981}
.app-preview-title{margin-left:8px;font-size:.78rem;font-weight:700;color:var(--muted)}
.app-preview-body{padding:20px;display:grid;grid-template-columns:1.4fr 1fr;gap:16px}
.pv-panel{border:1px solid var(--border);border-radius:12px;padding:16px;background:var(--bg)}
.pv-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.pv-pair{font-weight:800;font-size:1rem}
.pv-badge{font-size:.72rem;font-weight:800;padding:4px 10px;border-radius:999px}
.pv-buy{background:var(--green-bg);color:#047857}
.pv-wait{background:var(--amber-bg);color:#92400e}
.pv-row{display:flex;justify-content:space-between;gap:10px;font-size:.85rem;
  padding:7px 0;border-bottom:1px dashed var(--border)}
.pv-row:last-child{border-bottom:none}
.pv-row span{color:var(--muted)}
.pv-row b{font-weight:700}
.pv-bar{height:8px;border-radius:99px;background:var(--border);overflow:hidden;margin-top:6px}
.pv-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#10b981,#0ea5e9)}
.pv-note{font-size:.72rem;color:var(--muted2);margin-top:10px}

/* ---------------- Pills / lists ---------------- */
.pill-list{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.tick-list{list-style:none}
.tick-list li{display:flex;gap:10px;align-items:flex-start;padding:7px 0;
  font-size:.93rem;color:var(--muted)}
.tick-list li::before{content:"✓";color:var(--green);font-weight:800;flex-shrink:0}

/* ---------------- Pricing ---------------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.price-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:28px;display:flex;flex-direction:column}
.price-card.featured{border-color:var(--green);box-shadow:0 8px 24px rgba(16,185,129,.15);position:relative}
.price-flag{position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:var(--green);color:#fff;font-size:.7rem;font-weight:800;letter-spacing:.6px;
  padding:4px 14px;border-radius:999px;text-transform:uppercase}
.price-name{font-size:1.05rem;font-weight:800;margin-bottom:4px}
.price-desc{font-size:.85rem;color:var(--muted);margin-bottom:16px}
.price-amount{font-size:2.2rem;font-weight:800;line-height:1;margin-bottom:2px}
.price-per{font-size:.8rem;color:var(--muted2);margin-bottom:18px}
.price-card .tick-list{flex:1;margin-bottom:20px}

/* ---------------- FAQ ---------------- */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;
  cursor:pointer;background:none;border:none;color:var(--text);text-align:left;
  font-weight:700;font-size:.95rem;padding:16px 20px}
.faq-q .chev{transition:transform .2s ease;color:var(--muted);flex-shrink:0}
.faq-item.open .faq-q .chev{transform:rotate(180deg)}
.faq-a{display:none;padding:0 20px 16px;color:var(--muted);font-size:.9rem}
.faq-item.open .faq-a{display:block}

/* ---------------- Risk / disclaimer ---------------- */
.risk-box{background:var(--amber-bg);border:1px solid rgba(245,158,11,.4);
  border-radius:var(--radius);padding:24px;max-width:900px;margin:0 auto}
.risk-box h3{font-size:1rem;font-weight:800;color:#92400e;margin-bottom:8px}
.risk-box p{font-size:.88rem;color:#7c5a12}

/* ---------------- CTA band ---------------- */
.cta-band{text-align:center;padding:64px 24px;
  background:linear-gradient(135deg,rgba(16,185,129,.1),rgba(14,165,233,.1));
  border-top:1px solid var(--border)}
.cta-band h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;margin-bottom:12px}
.cta-band p{color:var(--muted);max-width:560px;margin:0 auto 26px}
.cta-band .hero-ctas{margin-bottom:0}

/* ---------------- Footer ---------------- */
.site-footer{border-top:1px solid var(--border);background:var(--card);margin-top:auto}
.site-footer-inner{max-width:1140px;margin:0 auto;padding:40px 24px 24px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px;margin-bottom:28px}
.footer-brand p{color:var(--muted);font-size:.85rem;margin-top:12px;max-width:280px}
.footer-col h4{font-size:.8rem;font-weight:800;letter-spacing:.8px;text-transform:uppercase;
  color:var(--muted2);margin-bottom:12px}
.footer-col a{display:block;color:var(--muted);text-decoration:none;font-size:.88rem;padding:4px 0}
.footer-col a:hover{color:var(--blue)}
.footer-bottom{border-top:1px solid var(--border);padding-top:18px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  color:var(--muted2);font-size:.78rem}

/* ---------------- Page hero (inner pages) ---------------- */
.page-hero{padding:56px 0 40px;text-align:center;
  background:radial-gradient(ellipse 70% 60% at 50% -5%,var(--blue-bg),transparent 70%)}
.page-hero h1{font-size:clamp(1.8rem,3.6vw,2.6rem);font-weight:800;letter-spacing:-.4px;margin-bottom:12px}
.page-hero p{color:var(--muted);max-width:640px;margin:0 auto;font-size:1.02rem}

/* ---------------- Dark theme ---------------- */
[data-theme="dark"] body{background:#0f172a;color:#e2e8f0}
[data-theme="dark"] .site-nav,[data-theme="dark"] .card,[data-theme="dark"] .step,
[data-theme="dark"] .price-card,[data-theme="dark"] .faq-item,
[data-theme="dark"] .app-preview,[data-theme="dark"] .site-footer,
[data-theme="dark"] .section-alt{background:#111827;border-color:#1f2937}
[data-theme="dark"] .app-preview-bar,[data-theme="dark"] .pv-panel{background:#0b1220}
[data-theme="dark"] .pv-panel,[data-theme="dark"] .pv-row{border-color:#1f2937}
[data-theme="dark"] .btn-ghost,[data-theme="dark"] .theme-toggle,
[data-theme="dark"] .hamburger{background:#111827;border-color:#1f2937;color:#e2e8f0}
[data-theme="dark"] .nav-links a:hover{background:#0b1220}
[data-theme="dark"] .pair-chip{background:#111827;border-color:#1f2937}
[data-theme="dark"] .pv-bar{background:#1f2937}
[data-theme="dark"] .risk-box{background:rgba(245,158,11,.14)}
[data-theme="dark"] .risk-box h3{color:#fbbf24}
[data-theme="dark"] .risk-box p{color:#d9a83f}

/* ---------------- Responsive ---------------- */
@media(max-width:960px){
  .grid-3,.steps,.price-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .app-preview-body{grid-template-columns:1fr}
}
@media(max-width:820px){
  .site-nav-inner{flex-wrap:wrap}
  .hamburger{display:inline-flex}
  .nav-menu{display:none}
  .site-nav.open .nav-menu{display:flex;flex-direction:column;align-items:stretch;
    flex-basis:100%;padding-top:14px;margin-top:12px;border-top:1px solid var(--border);gap:14px}
  .site-nav.open .nav-links{flex-direction:column;align-items:stretch;gap:2px}
  .site-nav.open .nav-links a{padding:12px;font-size:1rem}
  .site-nav.open .nav-right{flex-wrap:wrap}
  .site-nav.open .nav-right .btn{flex:1;justify-content:center;min-width:130px}
  [data-theme="dark"] .site-nav.open .nav-menu{border-color:#1f2937}
}
@media(max-width:600px){
  .grid-3,.grid-2,.steps,.price-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:44px 0}
  .hero{padding:48px 0 40px}
  .hero-ctas .btn{flex:1;min-width:200px}
}