/* =========================================================
   Ledger by TexVN — Landing Page Stylesheet
   Design tokens
========================================================= */
:root{
  --ink:#0B1220;
  --slate:#5B6478;
  --slate-light:#8991A6;
  --primary:#3D4FE0;
  --primary-dark:#28239E;
  --primary-darker:#181466;
  --bright:#4C6FFF;
  --deep:#101B4D;
  --paper:#F5F6FB;
  --white:#FFFFFF;
  --line:#E4E7F2;
  --debit:#3D4FE0;
  --credit:#16A34A;

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --radius:14px;
  --radius-lg:22px;
  --shadow-soft:0 10px 30px -12px rgba(16,27,77,0.18);
  --shadow-card:0 4px 18px -6px rgba(16,27,77,0.12);

  --nav-bg:rgba(255,255,255,.82);
  color-scheme:light;
}

/* ============ NIGHT MODE ============
   Almost every component in this file is built on the semantic
   tokens below (--white = surface, --paper = subtle surface,
   --ink = text, --slate = muted text, --line = border), so
   re-pointing them here re-themes the whole page. */
:root[data-theme="dark"]{
  --ink:#EEF1FB;
  --slate:#AEB4C9;
  --slate-light:#7C86A3;
  --paper:#131A34;
  --white:#0C1226;
  --line:#262E4E;
  --shadow-soft:0 14px 36px -14px rgba(0,0,0,.6);
  --shadow-card:0 8px 24px -10px rgba(0,0,0,.55);
  --nav-bg:rgba(12,18,38,.72);
  color-scheme:dark;
}
:root[data-theme="dark"] body{background:var(--white);}
:root[data-theme="dark"] .skip-link{background:var(--white);color:var(--ink);}

/* transition the theme change smoothly instead of snapping */
body,.ledger-nav,.feature-card,.price-card,.showcase-frame,.accordion-item,
.industry-pill,.step-num,.hero-badge{
  transition:background-color .35s ease, border-color .35s ease, color .35s ease;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.display{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:-0.02em;
  color:var(--ink);
}
p{color:var(--slate);}
a{text-decoration:none;color:inherit;}
.container-xl{max-width:1220px;}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--primary);
  font-weight:600;
}

/* Buttons */
.btn-ledger-primary{
  background:var(--primary);
  color:#fff;
  border:none;
  padding:.85rem 1.6rem;
  border-radius:10px;
  font-weight:600;
  font-size:.95rem;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  box-shadow:0 8px 20px -6px rgba(61,79,224,.55);
}
.btn-ledger-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  color:#fff;
  box-shadow:0 12px 24px -6px rgba(61,79,224,.6);
}
.btn-ledger-outline{
  background:transparent;
  color:var(--ink);
  border:1.5px solid var(--line);
  padding:.83rem 1.6rem;
  border-radius:10px;
  font-weight:600;
  font-size:.95rem;
  transition:border-color .15s ease, background .15s ease;
}
.btn-ledger-outline:hover{
  border-color:var(--primary);
  background:var(--paper);
  color:var(--ink);
}
.btn-ledger-ghost-light{
  background:rgba(255,255,255,.12);
  color:#fff;
  border:1.5px solid rgba(255,255,255,.35);
  padding:.83rem 1.6rem;
  border-radius:10px;
  font-weight:600;
  font-size:.95rem;
}
.btn-ledger-ghost-light:hover{background:rgba(255,255,255,.2);color:#fff;}

/* ============ NAVBAR ============ */
.ledger-nav{
  padding:1.1rem 0;
  background:var(--nav-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease, border-color .2s ease, background-color .35s ease;
  position:sticky;top:0;z-index:1000;
}
.ledger-nav.is-scrolled{
  box-shadow:0 2px 20px -8px rgba(16,27,77,.15);
  border-bottom-color:var(--line);
}
.brand-mark{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-display);
  font-weight:700;font-size:1.28rem;color:var(--ink);
}
.brand-mark .mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(145deg,var(--bright),var(--primary-dark));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:.95rem;font-family:var(--font-mono);font-weight:700;
}
.nav-link-ledger{
  font-weight:500;font-size:.94rem;color:var(--slate);
  padding:.5rem 1rem !important;
}
.nav-link-ledger:hover{color:var(--primary);}

/* ============ THEME TOGGLE ============ */
.theme-toggle{
  background:none;border:none;padding:0;line-height:0;cursor:pointer;
}
.theme-toggle-track{
  position:relative;
  width:52px;height:28px;
  border-radius:100px;
  background:var(--paper);
  border:1px solid var(--line);
  display:flex;align-items:center;
  padding:0 6px;
  transition:background-color .3s ease, border-color .3s ease;
}
.theme-toggle-track svg{position:relative;z-index:1;flex:0 0 auto;}
.ic-sun{color:#E9A93B;margin-right:auto;}
.ic-moon{color:#AEB4C9;margin-left:auto;}
.theme-toggle-thumb{
  position:absolute;top:2px;left:2px;
  width:22px;height:22px;border-radius:50%;
  background:linear-gradient(150deg,var(--bright),var(--primary-dark));
  box-shadow:0 2px 6px rgba(0,0,0,.25);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
}
:root[data-theme="dark"] .theme-toggle-thumb{transform:translateX(24px);}
.theme-toggle:hover .theme-toggle-track{border-color:var(--primary);}
.theme-toggle:focus-visible .theme-toggle-track{outline:2.5px solid var(--primary);outline-offset:2px;}

/* ============ HERO ============ */
.hero{
  position:relative;
  overflow:hidden;
  padding:5.5rem 0 4rem;
  background:var(--white);
}
.hero-mesh{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(1100px 550px at 78% -10%, rgba(76,111,255,.16), transparent 60%),
    radial-gradient(700px 420px at 5% 90%, rgba(40,35,158,.08), transparent 60%);
  transition:opacity .35s ease;
}
:root[data-theme="dark"] .hero-mesh{
  background:
    radial-gradient(1100px 550px at 78% -10%, rgba(76,111,255,.28), transparent 60%),
    radial-gradient(800px 460px at 8% 95%, rgba(61,79,224,.18), transparent 60%);
}
.hero > .container{position:relative;z-index:1;}
.hero-badge{
  display:inline-flex;align-items:center;gap:.5rem;
  background:var(--paper);
  border:1px solid var(--line);
  padding:.4rem .9rem;
  border-radius:100px;
  font-size:.82rem;
  color:var(--slate);
  font-weight:500;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--credit);display:inline-block;}
.hero h1{
  font-size:clamp(2.3rem,4.4vw,3.55rem);
  line-height:1.08;
  margin:1.1rem 0 1.1rem;
}
.hero h1 .accent{color:var(--primary);}
.hero-sub{font-size:1.12rem;max-width:520px;color:var(--slate);}
.hero-cta-row{margin-top:2rem;}
.hero-trust{margin-top:2.2rem;font-size:.85rem;color:var(--slate-light);}
.hero-trust strong{color:var(--ink);}

/* ---- Signature widget: the balancing ledger ---- */
.ledger-widget{
  background:linear-gradient(165deg,var(--deep),var(--primary-darker) 60%,var(--primary-dark));
  border-radius:var(--radius-lg);
  padding:1.6rem 1.6rem 1.4rem;
  box-shadow:var(--shadow-soft);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.ledger-widget::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(500px 260px at 90% 0%, rgba(255,255,255,.10), transparent 70%);
  pointer-events:none;
}
.ledger-widget-head{
  display:flex;justify-content:space-between;align-items:center;
  font-family:var(--font-mono);font-size:.78rem;
  color:rgba(255,255,255,.65);
  padding-bottom:.9rem;margin-bottom:.4rem;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.ledger-widget-head .lw-dots span{
  width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:5px;
  background:rgba(255,255,255,.35);
}
.lw-row{
  display:grid;
  grid-template-columns:1.5fr .9fr .9fr;
  gap:.6rem;
  padding:.62rem 0;
  border-bottom:1px dashed rgba(255,255,255,.12);
  font-size:.86rem;
  opacity:0;
  transform:translateY(6px);
  animation:lwIn .5s ease forwards;
}
.lw-row .lw-label{color:rgba(255,255,255,.92);font-weight:500;}
.lw-row .lw-debit{font-family:var(--font-mono);color:#AFC0FF;text-align:right;}
.lw-row .lw-credit{font-family:var(--font-mono);color:#8CE6A8;text-align:right;}
.lw-row:nth-child(2){animation-delay:.15s;}
.lw-row:nth-child(3){animation-delay:.35s;}
.lw-row:nth-child(4){animation-delay:.55s;}
.lw-row:nth-child(5){animation-delay:.75s;}
@keyframes lwIn{to{opacity:1;transform:translateY(0);}}
.lw-total{
  display:grid;grid-template-columns:1.5fr .9fr .9fr;
  margin-top:.7rem;padding-top:.85rem;
  border-top:1px solid rgba(255,255,255,.22);
  font-family:var(--font-mono);font-weight:600;font-size:.9rem;
}
.lw-total .lw-debit{color:#fff;text-align:right;}
.lw-total .lw-credit{color:#fff;text-align:right;}
.lw-balanced{
  margin-top:1rem;
  display:flex;align-items:center;gap:.5rem;
  font-size:.82rem;color:#8CE6A8;font-weight:600;
  opacity:0;animation:lwIn .5s ease forwards;animation-delay:1s;
}
.lw-balanced svg{width:16px;height:16px;}

@media (prefers-reduced-motion: reduce){
  .lw-row,.lw-balanced{animation:none;opacity:1;transform:none;}
}

/* ============ LOGO / TRUST STRIP ============ */
.trust-strip{
  padding:1.6rem 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.trust-strip span{
  font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--slate-light);font-weight:600;
}
.industry-pill{
  font-size:.85rem;font-weight:500;color:var(--slate);
  background:var(--paper);border:1px solid var(--line);
  padding:.45rem 1rem;border-radius:100px;white-space:nowrap;
}

/* ============ SECTION SHARED ============ */
.section{padding:5.5rem 0;}
.section-paper{background:var(--paper);}
.section-head{max-width:640px;}
.section-head h2{font-size:clamp(1.8rem,3vw,2.4rem);margin:.6rem 0 .8rem;}
.section-head p{font-size:1.05rem;}

/* ============ FEATURES ============ */
.feature-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:1.7rem;
  height:100%;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.feature-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-card);
  border-color:transparent;
}
.feature-icon{
  width:44px;height:44px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--bright),var(--primary-dark));
  color:#fff;margin-bottom:1.1rem;
}
.feature-card h3{font-size:1.08rem;margin-bottom:.5rem;}
.feature-card p{font-size:.93rem;margin-bottom:0;}

/* ============ PRODUCT SHOWCASE (tabs) ============ */
.showcase-tabs .nav-link{
  border:none;background:transparent;color:var(--slate);
  font-weight:600;font-size:.92rem;padding:.7rem 1.1rem;
  border-radius:10px;
}
.showcase-tabs .nav-link.active{
  background:var(--primary);color:#fff;
}
.showcase-frame{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.showcase-frame-top{
  display:flex;align-items:center;gap:.5rem;
  padding:.75rem 1rem;border-bottom:1px solid var(--line);
  background:var(--paper);
}
.showcase-frame-top span{width:9px;height:9px;border-radius:50%;background:var(--line);}
.showcase-frame-body{padding:1.4rem;}

.mini-table{width:100%;font-size:.82rem;border-collapse:collapse;}
.mini-table thead th{
  text-align:left;color:var(--slate-light);font-weight:600;
  font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
  padding:.5rem .6rem;border-bottom:1px solid var(--line);
}
.mini-table td{padding:.6rem .6rem;border-bottom:1px solid var(--line);color:var(--ink);}
.mini-table td.num{font-family:var(--font-mono);text-align:right;}
.mini-badge{
  font-size:.72rem;font-weight:600;padding:.2rem .55rem;border-radius:100px;
  background:rgba(61,79,224,.1);color:var(--primary);
}

/* ============ STEPS ============ */
.step-item{position:relative;padding-left:3.4rem;}
.step-num{
  position:absolute;left:0;top:0;
  width:2.5rem;height:2.5rem;border-radius:10px;
  background:var(--paper);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-weight:700;color:var(--primary);
}
.step-item h3{font-size:1.05rem;margin-bottom:.4rem;}
.step-item p{font-size:.93rem;}

/* ============ STATS ============ */
.stat-block .stat-num{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(1.9rem,3vw,2.6rem);color:var(--ink);
}
.stat-block .stat-label{font-size:.86rem;color:var(--slate);}

/* ============ TESTIMONIAL ============ */
.testimonial-card{
  background:linear-gradient(160deg,var(--deep),var(--primary-darker));
  border-radius:var(--radius-lg);
  padding:2.6rem;color:#fff;position:relative;overflow:hidden;
}
.testimonial-card::before{
  content:"“";
  position:absolute;top:.5rem;left:1.6rem;
  font-family:var(--font-display);font-size:6rem;color:rgba(255,255,255,.1);
  line-height:1;
}
.testimonial-card p.quote{font-size:1.2rem;line-height:1.55;position:relative;z-index:1;}
.testimonial-author{font-size:.88rem;color:rgba(255,255,255,.65);margin-top:1.2rem;}
.testimonial-author strong{color:#fff;}

/* ============ PRICING PROMO BANNER ============ */
.promo-banner{
  margin-top:2.2rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1.6rem;
  background:var(--white);
  border:1.5px solid var(--primary);
  border-radius:var(--radius-lg);
  padding:1.8rem 2rem;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.promo-banner::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(420px 220px at 100% 0%, rgba(61,79,224,.12), transparent 70%);
  pointer-events:none;
}
.promo-banner-tag{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  font-weight:600;
  color:#fff;
  background:var(--primary);
  padding:.28rem .7rem;
  border-radius:100px;
  margin-bottom:.7rem;
}
.promo-banner-text h3{
  font-size:1.3rem;
  margin-bottom:.4rem;
}
.promo-banner-text p{
  font-size:.94rem;
  max-width:520px;
  margin-bottom:0;
}
.promo-banner-cta{
  display:flex;
  gap:.8rem;
  flex-shrink:0;
  position:relative;
  z-index:1;
}
@media (max-width:767px){
  .promo-banner{flex-direction:column;align-items:flex-start;text-align:left;}
  .promo-banner-cta{width:100%;flex-direction:column;}
  .promo-banner-cta .btn{width:100%;text-align:center;}
}

/* ============ PRICING ============ */
.price-card{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:2rem 1.8rem;height:100%;
  transition:transform .18s ease, box-shadow .18s ease;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card);}
.price-card.is-highlight{
  border-color:var(--primary);
  box-shadow:0 16px 34px -14px rgba(61,79,224,.4);
}
.price-tag{
  font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:#fff;background:var(--primary);padding:.3rem .7rem;border-radius:100px;
}
.price-amount{font-family:var(--font-mono);font-size:2.2rem;font-weight:700;margin:1rem 0 .2rem;}
.price-amount span{font-size:.95rem;color:var(--slate-light);font-weight:500;}
.price-feats{list-style:none;padding:0;margin:1.4rem 0;font-size:.9rem;}
.price-feats li{padding:.4rem 0;color:var(--slate);display:flex;gap:.6rem;align-items:flex-start;}
.price-feats li svg{flex-shrink:0;margin-top:.2rem;color:var(--credit);}

/* ============ FAQ ============ */
.accordion-ledger .accordion-item{
  border:1px solid var(--line);border-radius:12px !important;
  overflow:hidden;margin-bottom:.8rem;
  background:var(--white);
}
.accordion-ledger .accordion-button{
  font-weight:600;font-size:.98rem;color:var(--ink);
  padding:1.1rem 1.3rem;
  background:var(--white);
}
.accordion-ledger .accordion-button:not(.collapsed){
  background:var(--paper);color:var(--primary);box-shadow:none;
}
.accordion-ledger .accordion-button::after{filter:none;}
:root[data-theme="dark"] .accordion-ledger .accordion-button::after{
  filter:invert(1) grayscale(1) brightness(1.7);
}
.accordion-ledger .accordion-button:focus{box-shadow:none;}
.accordion-ledger .accordion-body{color:var(--slate);font-size:.92rem;padding:.2rem 1.3rem 1.2rem;background:var(--white);}

/* ============ SCROLL REVEAL ============ */
.reveal{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .6s cubic-bezier(.2,.6,.2,1), transform .6s cubic-bezier(.2,.6,.2,1);
}
.reveal.is-visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
}

/* ============ FINAL CTA ============ */
.final-cta{
  background:linear-gradient(150deg,var(--deep),var(--primary-dark) 65%,var(--bright));
  border-radius:var(--radius-lg);
  padding:3.4rem 2.4rem;
  color:#fff;text-align:center;
  position:relative;overflow:hidden;
}
.final-cta h2{color:#fff;font-size:clamp(1.7rem,3vw,2.3rem);}
.final-cta p{color:rgba(255,255,255,.78);max-width:520px;margin:.6rem auto 1.8rem;}

/* ============ FOOTER ============ */
.ledger-footer{
  background:var(--deep);color:rgba(255,255,255,.72);
  padding:3.6rem 0 1.6rem;font-size:.9rem;
}
.ledger-footer h6{
  color:#fff;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;
  margin-bottom:1rem;font-weight:700;
}
.ledger-footer a{color:rgba(255,255,255,.68);}
.ledger-footer a:hover{color:#fff;}
.ledger-footer .brand-mark{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:2.4rem;padding-top:1.4rem;
  font-size:.82rem;color:rgba(255,255,255,.5);
}
.social-ic{
  width:36px;height:36px;border-radius:9px;
  background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;
  color:#fff;transition:background .15s ease;
}
.social-ic:hover{background:rgba(255,255,255,.18);}

/* skip link for a11y */
.skip-link{
  position:absolute;left:-999px;top:0;background:#fff;color:var(--ink);
  padding:.6rem 1rem;z-index:2000;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;}

:focus-visible{outline:2.5px solid var(--primary);outline-offset:2px;}

@media (max-width:991px){
  .section{padding:3.6rem 0;}
  .hero{padding:3.2rem 0 2.6rem;text-align:left;}
}