/* ═══════════════════════════════════════════════════════════════
   BridgeInvest — UNIFIED DESIGN SYSTEM · "SIGNAL" FINANCE
   Sleek · professional · techy · financial
   Deep-slate fintech theme with an electric blue→teal signal accent.
   This sheet styles the public/landing shell AND exports the shared
   tokens consumed by home.html, about_us.html and the other landing
   templates (they reference the same --vars).
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600;9..40,700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

*, *::before, *::after {
  margin: 0; padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  border: none; outline: none;
  -webkit-font-smoothing: antialiased;
}

:root {
  /* Surfaces — deep slate navy, never pitch black */
  --navy:       #060a12;   /* page / hero base            */
  --navy-2:     #0a101d;   /* section alt                */
  --navy-3:     #0e1626;   /* panels                     */
  --navy-4:     #141e33;   /* raised / inputs            */
  --navy-5:     #1a2742;   /* hover / active             */

  /* Generic surface aliases (landing templates use these) */
  --white:      #0e1626;   /* ".white" cards  → dark card */
  --off-white:  #0a101d;   /* ".off-white" bg → dark sect */
  --cream:      #0d1424;

  /* Hairlines / borders */
  --rule:       rgba(148,163,184,0.10);
  --rule-dark:  rgba(255,255,255,0.10);
  --rule-mid:   rgba(148,163,184,0.16);

  /* Signal accent — brand blue + data teal */
  --accent:     #3b82f6;
  --accent-2:   #22d3ee;
  --accent-dim: rgba(59,130,246,0.10);
  --accent-glow:rgba(34,211,238,0.18);

  /* Market colours */
  --green:      #22c55e;
  --red:       #f43f5e;
  --amber:      #f59e0b;
  --gold:       #e8c97a;
  --gold-dim:   rgba(232,201,122,0.12);

  /* Text */
  --text:       #e6eaf3;
  --text-2:     #98a5bb;
  --text-3:     #5f6d84;
  --text-inv:   #ffffff;
  --text-inv-2: rgba(255,255,255,0.64);

  /* Typography */
  --font-disp:  'DM Sans', system-ui, sans-serif;
  --font-body:  'DM Sans', system-ui, sans-serif;
  --font-mono:  'JetBrains Mono', 'Courier New', monospace;

  --nav-h:      78px;
  --ease:       cubic-bezier(.22,.68,0,1.12);
  --ease-out:   cubic-bezier(.16,1,.3,1);
  --r:          12px;

  /* Legacy compat aliases (trade_dash etc. rely on some) */
  --bg-color:   #060a12;
  --text-color: #e6eaf3;
  --main-color: #22d3ee;
  --white-color:#e6eaf3;
  --shadow-color:#141e33;
  --ink:        #060a12;
  --ink-2:      #0a101d;
  --ink-3:      #0e1626;
  --ink-4:      #141e33;
  --teal:       #22d3ee;
  --teal-dim:   rgba(34,211,238,0.10);
  --teal-glow:  rgba(34,211,238,0.20);
}

html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.65;
  overflow-x: hidden;
}

::selection { background: var(--accent-dim); color: var(--accent-2); }

/* ── Scrollbars ── */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: var(--navy-2); }
::-webkit-scrollbar-thumb { background: var(--navy-5); border-radius: 6px; border: 2px solid var(--navy-2); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Navigation ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2.75rem;
  z-index: 1000;
  background: transparent;
  transition: background .35s ease, border-color .35s ease, backdrop-filter .35s ease, box-shadow .35s;
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: rgba(6,10,18,0.78);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--rule);
  box-shadow: 0 1px 0 rgba(255,255,255,0.02), 0 12px 40px rgba(0,0,0,0.35);
}
.navbar.dark-nav { background: transparent; }
.navbar.dark-nav.scrolled {
  background: rgba(6,10,18,0.86);
  border-bottom-color: var(--rule-dark);
}

.nav-brand {
  display: flex; align-items: center; gap: .7rem;
  color: var(--text-inv);
  font-family: var(--font-disp);
  font-size: 1.35rem; font-weight: 600;
  letter-spacing: .01em;
  transition: color .3s;
}
.nav-brand b { color: var(--accent-2); font-weight: 700; }
.brand-glyph {
  width: 32px; height: 32px; flex-shrink: 0;
  filter: drop-shadow(0 0 10px var(--accent-glow));
}

.nav-links { display: flex; align-items: center; gap: 2.1rem; list-style: none; }
.nav-links a {
  color: rgba(255,255,255,0.7);
  font-family: var(--font-body);
  font-size: .84rem; font-weight: 500;
  letter-spacing: .03em;
  transition: color .25s;
}
.nav-links a:hover { color: var(--accent-2) !important; }

.nav-cta {
  padding: .58rem 1.5rem !important;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)) !important;
  color: #04121c !important;
  border-radius: 8px;
  font-weight: 700 !important;
  letter-spacing: .03em !important;
  box-shadow: 0 6px 20px rgba(59,130,246,0.28);
  transition: transform .2s, box-shadow .2s !important;
}
.nav-cta:hover {
  transform: translateY(-1px) !important;
  box-shadow: 0 10px 28px rgba(34,211,238,0.34) !important;
  color: #02060d !important;
}

/* Mobile nav */
.mobile-menu {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; padding: 4px;
}
.mobile-menu span {
  display: block; width: 22px; height: 2px;
  background: var(--text-inv);
  transition: transform .3s, opacity .3s;
}
.mobile-menu.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.mobile-menu.open span:nth-child(2) { opacity: 0; }
.mobile-menu.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Footer ── */
.site-footer {
  background: var(--navy-2);
  border-top: 1px solid var(--rule);
  padding: 4rem 2.75rem 2rem;
}
.footer-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr auto auto;
  align-items: start; gap: 3rem;
}
.footer-brand {
  display: flex; align-items: center; gap: .6rem;
  color: var(--text-inv);
  font-family: var(--font-disp);
  font-size: 1.2rem; font-weight: 600;
}
.footer-left p { font-size: .82rem; color: var(--text-2); margin-top: .5rem; max-width: 260px; line-height: 1.6; }
.footer-nav { display: flex; flex-direction: column; gap: .85rem; }
.footer-nav-title {
  font-size: .64rem; color: var(--text-3);
  letter-spacing: .16em; text-transform: uppercase;
  margin-bottom: .3rem; font-family: var(--font-mono);
}
.footer-nav a { color: var(--text-2); font-size: .84rem; transition: color .2s; }
.footer-nav a:hover { color: var(--accent-2); }
.footer-legal {
  grid-column: 1 / -1;
  font-size: .7rem; color: var(--text-3);
  border-top: 1px solid var(--rule);
  padding-top: 1.5rem; margin-top: .5rem;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: .5rem;
}

/* ── Shared CTA Button ── */
.cta-btn {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .9rem 2.1rem;
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent-2);
  font-family: var(--font-body);
  font-size: .84rem; font-weight: 600;
  letter-spacing: .03em;
  cursor: pointer;
  border-radius: 9px;
  transition: all .22s ease;
}
.cta-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #04121c;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(59,130,246,0.26);
}
.cta-btn span, .cta-btn a { position: relative; z-index: 1; color: inherit; }

.cta-btn.inv {
  border-color: var(--rule-mid);
  color: var(--text-inv);
  background: rgba(255,255,255,0.03);
}
.cta-btn.inv:hover {
  background: rgba(255,255,255,0.08);
  color: #fff; border-color: rgba(255,255,255,0.35);
  box-shadow: none;
}
.primary-cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-2)) !important;
  color: #04121c !important;
  border-color: transparent !important;
}
.primary-cta:hover {
  color: #02060d !important;
  box-shadow: 0 10px 30px rgba(34,211,238,0.32) !important;
}

/* ── Login page ── */
.login_page {
  padding: 7rem 5rem 5rem;
  min-height: 100vh;
  background:
    radial-gradient(ellipse 60% 50% at 70% 20%, rgba(59,130,246,0.10), transparent 60%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(34,211,238,0.07), transparent 55%),
    var(--navy);
  color: var(--text-inv);
  display: flex; flex-direction: column; align-items: center;
}
.log-in_section { display: flex; gap: 1.25rem; width: 100%; max-width: 980px; margin-bottom: 3rem; }
.login, .register {
  flex: 1; background: var(--navy-3); padding: 2.5rem;
  border: 1px solid var(--rule);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  transition: border-color .3s, transform .3s;
}
.login:hover, .register:hover { border-color: rgba(59,130,246,0.5); transform: translateY(-2px); }
.login h1, .register h1 {
  font-family: var(--font-disp); font-size: 1.7rem;
  font-weight: 600; margin-bottom: 1.2rem; color: var(--text-inv);
}
.login p, .register p { color: var(--text-inv-2); margin-bottom: 1.5rem; }
.log-in-form label {
  display: block; margin-bottom: .4rem; color: var(--accent-2);
  font-size: .72rem; letter-spacing: .09em; text-transform: uppercase; font-family: var(--font-mono);
}
.log-in-form p { margin-bottom: 1.2rem; }
.log-in-form input[type="text"],
.log-in-form input[type="password"],
.log-in-form input[type="email"] {
  width: 100%; padding: .85rem 1rem;
  background: var(--navy-4); border: 1px solid var(--rule-mid);
  color: var(--text-inv); font-family: var(--font-body); font-size: .9rem;
  border-radius: 8px; transition: border-color .25s, box-shadow .25s;
}
.log-in-form input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.16); }
.log-in-btn {
  width: 100%; padding: .95rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  color: #04121c; font-family: var(--font-body);
  font-size: .86rem; font-weight: 700; letter-spacing: .04em;
  cursor: pointer; border-radius: 9px;
  transition: box-shadow .25s, transform .2s;
}
.log-in-btn:hover { box-shadow: 0 8px 24px rgba(34,211,238,0.3); transform: translateY(-1px); }
.tab-switcher { display: flex; gap: 0; margin-bottom: 2rem; border-bottom: 1px solid var(--rule); }
.tab {
  padding: .7rem 1.5rem; cursor: pointer; font-size: .78rem;
  letter-spacing: .09em; text-transform: uppercase;
  color: var(--text-inv-2); border-bottom: 2px solid transparent;
  margin-bottom: -1px; transition: all .25s;
}
.tab.active { color: var(--accent-2); border-bottom-color: var(--accent-2); }
.tab-content { display: none; animation: fadeIn .4s ease forwards; }
.tab-content.active { display: block; }
.disclaimer { max-width: 700px; text-align: center; font-size: .78rem; color: var(--text-inv-2); margin-top: 2rem; line-height: 1.6; }
.highlight_text_green { color: var(--accent-2); }

@keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }

/* ── Utilities ── */
.teal  { color: var(--accent-2); }
.gold  { color: var(--gold); }
.bold  { font-weight: 700; }
.mono  { font-family: var(--font-mono); }

/* ── Signup confirm ── */
.signup_confirm {
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  color: var(--text-inv);
  background:
    radial-gradient(ellipse 60% 50% at 50% 30%, rgba(59,130,246,0.12), transparent 60%),
    var(--navy);
  height: 100vh; overflow: hidden; gap: 1.5rem; padding: 0 1.5rem;
}
.signup_confirm h1 {
  text-align: center; font-size: 2.6rem;
  color: var(--text-inv); font-family: var(--font-disp); font-weight: 600;
}
.signup_confirm h3 {
  font-size: 1.05rem; font-family: var(--font-body);
  font-weight: 400; color: var(--text-inv-2); text-align: center; max-width: 500px; line-height: 1.7;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .navbar { padding: 0 1.4rem; }
  .nav-links {
    display: none; flex-direction: column; align-items: flex-start;
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    background: rgba(6,10,18,0.97); backdrop-filter: blur(20px);
    padding: 2rem 1.5rem; gap: 1.5rem;
    border-bottom: 1px solid var(--rule);
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: .92rem; color: rgba(255,255,255,0.85) !important; }
  .mobile-menu { display: flex; }
  .footer-inner { grid-template-columns: 1fr; }
  .log-in_section { flex-direction: column; }
  .login_page { padding: 6rem 1.4rem 3rem; }
}