/* =========================
   BourseGPT — Modern Startup Finance UI (FINAL)
   - Offline friendly (no external deps)
   - Mobile menu fixed (desktop hidden + [hidden] enforced)
   ========================= */

:root{
  --bg: #070A12;
  --panel: rgba(255,255,255,0.06);
  --panel-strong: rgba(255,255,255,0.10);
  --border: rgba(255,255,255,0.12);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.68);
  --muted2: rgba(255,255,255,0.52);
  --shadow: 0 18px 45px rgba(0,0,0,0.55);

  --primary: #68E3FF;
  --primary2: #7C5CFF;
  --accent: #00FFA8;

  --danger: #FF4D6D;

  --radius: 18px;
  --radius-sm: 12px;

  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

/* Light mode */
[data-theme="light"]{
  --bg: #F7F8FC;
  --panel: rgba(15,18,34,0.06);
  --panel-strong: rgba(15,18,34,0.10);
  --border: rgba(15,18,34,0.14);
  --text: rgba(15,18,34,0.92);
  --muted: rgba(15,18,34,0.66);
  --muted2: rgba(15,18,34,0.52);
  --shadow: 0 18px 45px rgba(10,12,25,0.15);

  --primary: #1B84FF;
  --primary2: #7C5CFF;
  --accent: #00B894;
}

/* =========================
   FIX #1: force hidden attribute to always hide
   ========================= */
[hidden]{
  display: none !important;
}

/* Base */
*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(104,227,255,0.20), transparent 60%),
              radial-gradient(900px 500px at 95% 10%, rgba(124,92,255,0.18), transparent 55%),
              radial-gradient(900px 600px at 40% 110%, rgba(0,255,168,0.12), transparent 60%),
              var(--bg);
  color: var(--text);
  overflow-x:hidden;
}

a{ color:inherit; text-decoration:none; }
a:hover{ opacity:0.92; }
img{ max-width:100%; display:block; }

.container{
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.bg-glow{
  position:fixed;
  inset:-200px;
  background:
    radial-gradient(700px 450px at 15% 15%, rgba(104,227,255,0.10), transparent 60%),
    radial-gradient(700px 450px at 90% 20%, rgba(124,92,255,0.10), transparent 60%),
    radial-gradient(700px 500px at 55% 90%, rgba(0,255,168,0.08), transparent 65%);
  pointer-events:none;
  z-index:-1;
}

/* Utility */
.muted{ color: var(--muted); }
.small{ font-size: 0.92rem; }
.hide-sm{ display:inline; }
.w-full{ width:100%; }
.divider{ height:1px; background: var(--border); margin: 18px 0; }

/* Glass card */
.glass{
  background: linear-gradient(180deg, var(--panel), rgba(255,255,255,0.03));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.card{
  border-radius: var(--radius);
  padding: 22px;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border-radius: 999px;
  padding: 11px 16px;
  border: 1px solid var(--border);
  font-weight: 650;
  letter-spacing: 0.2px;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  cursor:pointer;
  user-select:none;
}

.btn-primary{
  background: linear-gradient(90deg, rgba(104,227,255,0.95), rgba(124,92,255,0.90));
  border-color: rgba(255,255,255,0.18);
  color: rgba(12,14,25,0.92);
}
.btn-primary:hover{ transform: translateY(-1px); }
.btn-primary:active{ transform: translateY(0px); }

.btn-ghost{
  background: rgba(255,255,255,0.04);
}
.btn-ghost:hover{ transform: translateY(-1px); background: rgba(255,255,255,0.06); }
.btn-ghost:active{ transform: translateY(0px); }

.icon{ font-size: 1.05rem; }

/* Nav */
.nav{
  position:sticky;
  top:0;
  z-index: 20;
  background: rgba(0,0,0,0.15);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
[data-theme="light"] .nav{
  background: rgba(255,255,255,0.65);
  border-bottom: 1px solid rgba(15,18,34,0.08);
}

.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding: 14px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-weight: 850;
  letter-spacing: 0.3px;
}
.brand-text{ font-size: 1.05rem; }
.brand-mark{
  width: 36px; height: 36px;
  display:grid; place-items:center;
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
}
.brand-badge{
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0,255,168,0.12);
  border: 1px solid rgba(0,255,168,0.26);
  color: rgba(0,255,168,0.92);
}

.menu{
  display:flex;
  align-items:center;
  gap: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
}
.menu a{
  font-weight: 650;
  padding: 8px 10px;
  border-radius: 999px;
  color: var(--muted);
}
.menu a.active{
  color: var(--text);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
}

.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
}

.burger{
  display:none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  cursor:pointer;
}
.burger span{
  display:block;
  width: 20px;
  height: 2px;
  background: var(--text);
  margin: 5px auto;
  border-radius: 2px;
}

/* =========================
   FIX #2: mobile menu should NOT render on desktop
   ========================= */
.mobile-menu{
  display:none;           /* always hidden on desktop */
  padding: 14px 0 22px;
  gap: 10px;
}
.mobile-menu a{
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  font-weight: 700;
}
.mobile-menu a.active{
  background: rgba(255,255,255,0.07);
}
.mobile-cta{
  display:grid;
  gap: 10px;
  margin-top: 8px;
}

/* Hero */
.hero{ padding: 44px 0 26px; }
.hero-grid{
  display:grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 26px;
  align-items:start;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-weight: 650;
}
.dot{
  width: 10px; height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(0,255,168,0.55);
}
h1{
  font-size: clamp(2.2rem, 4.2vw, 3.45rem);
  line-height: 1.05;
  margin: 14px 0 12px;
  letter-spacing: -0.02em;
}
.grad{
  background: linear-gradient(90deg, var(--primary), var(--primary2));
  -webkit-background-clip:text;
  background-clip:text;
  color: transparent;
}
.lead{
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
  margin: 0 0 18px;
}
.hero-actions{ display:flex; gap:12px; flex-wrap:wrap; margin-bottom: 18px; }
.hero-stats{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
  margin-top: 12px;
}
.stat-card{
  padding: 14px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
}
.stat-num{
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.stat-label{
  margin-top: 6px;
  font-size: 0.86rem;
  color: var(--muted2);
}
.fineprint{ margin-top: 10px; font-size: 0.84rem; color: var(--muted2); }

/* Right hero card */
.hero-card .card{ padding: 18px; }
.card-top{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom: 12px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.05);
  font-weight: 750;
  color: var(--muted);
  font-size: 0.86rem;
}
.chip-dot{
  width: 8px; height: 8px; border-radius: 999px;
  background: rgba(104,227,255,0.95);
  box-shadow: 0 0 14px rgba(104,227,255,0.55);
}
.chip-light{
  background: rgba(255,255,255,0.04);
  color: var(--muted);
}
.mini-icons span{
  font-size: 1.05rem;
  opacity: 0.95;
  margin-left: 6px;
}

.terminal{
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.10);
  overflow:hidden;
  background: rgba(0,0,0,0.22);
}
[data-theme="light"] .terminal{
  background: rgba(255,255,255,0.65);
}
.terminal-bar{
  display:flex;
  align-items:center;
  gap:6px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.t-dot{
  width: 10px; height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.25);
}
.terminal-title{
  margin-left: 8px;
  font-size: 0.86rem;
  color: var(--muted);
  font-weight: 700;
}
.terminal-body{
  margin:0;
  padding: 12px;
  font-size: 0.86rem;
  line-height: 1.55;
  color: rgba(255,255,255,0.85);
  overflow:auto;
}

.chart-card{
  margin-top: 14px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
}
.chart-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom: 10px;
}
.sparkline{
  height: 88px;
  border-radius: 14px;
  border: 1px dashed rgba(255,255,255,0.16);
  background:
    radial-gradient(140px 80px at 20% 45%, rgba(104,227,255,0.12), transparent 60%),
    radial-gradient(140px 80px at 80% 35%, rgba(0,255,168,0.10), transparent 60%),
    rgba(0,0,0,0.15);
  display:flex;
  align-items:center;
  justify-content:center;
}
.chart-footer{
  margin-top: 10px;
  display:flex;
  flex-wrap:wrap;
  gap: 8px;
}
.card-bottom{
  margin-top: 14px;
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 10px;
}
.trust{
  font-weight: 750;
  color: var(--muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 14px;
  padding: 10px 12px;
  text-align:center;
}

/* Logos row */
.logos{ padding: 10px 0 20px; }
.logo-row{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-top: 10px;
}
.logo-pill{
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-weight: 700;
}

/* Sections */
.section{ padding: 38px 0; }
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap: 18px;
  margin-bottom: 16px;
}
.section-head h2{ margin:0; font-size: 1.85rem; letter-spacing:-0.02em; }
.section-head p{ margin:0; max-width: 520px; }

.grid-3{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px;
}
.feature-icon{ font-size: 1.55rem; }
.feature h3{ margin: 12px 0 8px; }
.feature p{ margin: 0 0 12px; color: var(--muted); line-height: 1.65; }

.checklist{
  margin:0;
  padding-left: 18px;
  color: var(--muted);
}
.checklist li{ margin: 8px 0; }

/* CTA */
.cta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 18px;
  padding: 24px;
}
.cta h2{ margin:0 0 6px; }
.cta p{ margin:0; }
.cta-actions{ display:flex; gap: 12px; flex-wrap:wrap; }

/* Footer */
.footer{
  padding: 26px 0 34px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
[data-theme="light"] .footer{
  border-top: 1px solid rgba(15,18,34,0.10);
}
.footer-grid{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 18px;
}
.footer-links{
  display:flex;
  gap: 42px;
}
.footer-links h4{
  margin: 0 0 10px;
  font-size: 0.95rem;
}
.footer-links a{
  display:block;
  color: var(--muted);
  margin: 8px 0;
  font-weight: 650;
}
.footer-meta{
  text-align:right;
}
.footer-brand{ margin-bottom: 8px; }

/* Legal pages */
.legal{ padding: 36px 0 50px; }
.legal-head{ margin-bottom: 14px; }
.legal-head h1{ margin:0 0 6px; font-size: 2.1rem; }
.legal-body{
  padding: 26px;
  line-height: 1.8;
}
.legal-body h2{
  margin-top: 22px;
  font-size: 1.25rem;
}
.legal-body h3{
  margin-top: 16px;
  font-size: 1.05rem;
}
.legal-body ul{
  margin: 10px 0 10px 18px;
  color: var(--muted);
}
.legal-body p{ color: var(--muted); }
.legal-body strong{ color: var(--text); }
.legal-footer{ margin-top: 14px; }

/* Support page */
.support{ padding: 36px 0 56px; }
.support-grid{
  display:grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 14px;
  align-items:start;
}
.support-card h1{ margin: 0 0 8px; font-size: 2.1rem; }
.form{ margin-top: 16px; display:grid; gap: 12px; }
.form-row{ display:grid; gap: 7px; }
label{ font-weight: 750; color: var(--muted); }
input, textarea, select{
  width:100%;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  padding: 12px 12px;
  outline: none;
  font-family: var(--font);
  font-size: 1rem;
}
textarea{ resize: vertical; min-height: 120px; }
input:focus, textarea:focus, select:focus{
  border-color: rgba(104,227,255,0.45);
  box-shadow: 0 0 0 4px rgba(104,227,255,0.12);
}
[data-theme="light"] input,
[data-theme="light"] textarea,
[data-theme="light"] select{
  background: rgba(15,18,34,0.03);
}
#formNote{ margin: 10px 0 0; }

.info-card h2{ margin-top: 0; }
.info-block{ margin: 12px 0; }
.info-label{ color: var(--muted2); font-weight: 750; margin-bottom: 6px; }
.info-value{ color: var(--text); font-weight: 700; line-height: 1.5; }
.info-value a{
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: rgba(104,227,255,0.45);
}
.mini-cta{ margin-top: 12px; display:grid; gap: 10px; }

/* Responsive */
@media (max-width: 980px){
  .menu{ display:none; }
  .nav-actions{ display:none; }
  .burger{ display:block; }
  .hide-sm{ display:none; }
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-stats{ grid-template-columns: 1fr; }
  .card-bottom{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
  .cta{ flex-direction: column; align-items:flex-start; }
  .footer-grid{ flex-direction: column; }
  .footer-meta{ text-align:left; }
  .support-grid{ grid-template-columns: 1fr; }

  /* =========================
     FIX #3: mobile menu can render on mobile only
     (still controlled by [hidden] + JS)
     ========================= */
  .mobile-menu{
    display:grid;
  }
}