/* =========================================================
   CalcShala — Design System
   A ledger-inspired look for a calculator toolbox site.
   ========================================================= */

:root{
  /* Color */
  --cs-ink: #12261E;        /* deep forest-ink — headings, header bg */
  --cs-ink-soft: #1B3327;
  --cs-paper: #F7F5EF;      /* warm paper background */
  --cs-paper-raised: #FFFFFF;
  --cs-green: #2F6F4E;      /* primary brand green */
  --cs-green-deep: #24593E;
  --cs-amber: #E8871E;      /* secondary accent, used sparingly */
  --cs-border: #D8D2C4;     /* muted stone border/divider */
  --cs-text: #22201A;
  --cs-text-muted: #5B5646;
  --cs-focus: #1E6DE0;

  /* Type */
  --cs-font-display: "Fraunces", "Georgia", serif;
  --cs-font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Layout */
  --cs-radius: 6px;
  --cs-radius-sm: 4px;
  --cs-max: 1160px;
  --cs-gutter: clamp(20px, 4vw, 48px);
}

/* =========================================================
   Base
   ========================================================= */
body{
  background: var(--cs-paper);
  color: var(--cs-text);
  font-family: var(--cs-font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.calcshala-theme h1,
body.calcshala-theme h2,
body.calcshala-theme h3{
  font-family: var(--cs-font-display);
  color: var(--cs-ink);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.cs-wrap{
  max-width: var(--cs-max);
  margin-inline: auto;
  padding-inline: var(--cs-gutter);
}

a{ color: var(--cs-green-deep); text-decoration-color: rgba(47,111,78,0.35); text-underline-offset: 3px; }
a:hover{ color: var(--cs-ink); }

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

@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; }
}

/* Tabular numerals wherever calculators show results */
.cs-num, .elementor-widget input[type="number"], .cs-result, .cs-result *{
  font-variant-numeric: tabular-nums;
}

/* =========================================================
   Header
   ========================================================= */
.cs-header{
  background: var(--cs-ink);
  border-bottom: 3px solid var(--cs-green);
  position: sticky;
  top: 0;
  z-index: 999;
}
.cs-header__row{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 14px;
}
.cs-header__brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--cs-font-display);
  font-weight: 600;
  font-size: 1.35rem;
  color: #FDFCF8;
  text-decoration: none;
}
.cs-header__brand:hover{ color: #FDFCF8; opacity: 0.85; }
.cs-header__mark{
  width: 30px; height: 30px;
  border-radius: var(--cs-radius-sm);
  background: var(--cs-green);
  color: var(--cs-ink);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--cs-font-body);
  font-weight: 800;
  font-size: 0.95rem;
}
.cs-header__nav{
  display: flex;
  align-items: center;
  gap: 28px;
}
.cs-header__nav a{
  color: rgba(253,252,248,0.82);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  padding-bottom: 3px;
}
.cs-header__nav a:hover,
.cs-header__nav a.is-active{
  color: #FDFCF8;
  border-bottom-color: var(--cs-green);
}
.cs-header__toggle{
  display: none;
  background: none;
  border: 1px solid rgba(253,252,248,0.3);
  border-radius: var(--cs-radius-sm);
  color: #FDFCF8;
  width: 40px; height: 36px;
  cursor: pointer;
}

@media (max-width: 780px){
  .cs-header__nav{
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--cs-ink);
    flex-direction: column;
    align-items: flex-start;
    padding: 8px var(--cs-gutter) 20px;
    gap: 4px;
    display: none;
    border-bottom: 3px solid var(--cs-green);
  }
  .cs-header__nav.is-open{ display: flex; }
  .cs-header__nav a{ width: 100%; padding-block: 10px; border-bottom: 1px solid rgba(253,252,248,0.1); }
  .cs-header__toggle{ display: block; }
}

/* =========================================================
   Hero (homepage)
   ========================================================= */
.cs-hero{
  padding-block: clamp(48px, 8vw, 88px) clamp(40px, 6vw, 64px);
  border-bottom: 1px solid var(--cs-border);
}
.cs-hero__grid{
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.cs-hero__eyebrow{
  font-size: 0.85rem;
  color: var(--cs-green-deep);
  font-weight: 600;
  margin-bottom: 14px;
}
.cs-hero h1{
  font-size: clamp(2.2rem, 4.4vw, 3.4rem);
  margin: 0 0 18px;
  max-width: 14ch;
}
.cs-hero p{
  font-size: 1.1rem;
  color: var(--cs-text-muted);
  max-width: 46ch;
  margin: 0 0 28px;
}
.cs-hero__cta{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--cs-green);
  color: #FDFCF8;
  padding: 13px 24px;
  border-radius: var(--cs-radius-sm);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.98rem;
}
.cs-hero__cta:hover{ background: var(--cs-green-deep); color: #FDFCF8; }

/* right-side "ledger strip" texture instead of stock illustration */
.cs-hero__strip{
  background: var(--cs-ink);
  border-radius: var(--cs-radius);
  padding: 22px;
  border: 1px solid var(--cs-green-deep);
}
.cs-hero__strip-title{
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(253,252,248,0.5);
  margin-bottom: 12px;
}
.cs-hero__strip-row{
  display: flex;
  justify-content: space-between;
  padding-block: 10px;
  border-top: 1px solid rgba(253,252,248,0.1);
  color: rgba(253,252,248,0.9);
  font-size: 0.92rem;
}
.cs-hero__strip-row:first-of-type{ border-top: none; }
.cs-hero__strip-row span:last-child{
  color: var(--cs-green);
  font-weight: 600;
  font-family: var(--cs-font-body);
}

@media (max-width: 860px){
  .cs-hero__grid{ grid-template-columns: 1fr; }
}

/* =========================================================
   Tool filter bar
   ========================================================= */
.cs-filters{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-block: 24px;
}
.cs-filters button{
  background: var(--cs-paper-raised);
  border: 1px solid var(--cs-border);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 0.88rem;
  font-family: var(--cs-font-body);
  color: var(--cs-text-muted);
  cursor: pointer;
}
.cs-filters button.is-active,
.cs-filters button:hover{
  border-color: var(--cs-green);
  color: var(--cs-ink);
  background: #EAF2EC;
}

/* =========================================================
   Tool cards — ledger rows, not soft-shadow SaaS cards
   ========================================================= */
.cs-tools{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--cs-border);
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius);
  overflow: hidden;
  margin-block: 12px 56px;
}
.cs-tool{
  background: var(--cs-paper-raised);
  padding: 26px 24px 22px;
  display: flex;
  flex-direction: column;
  min-height: 190px;
  text-decoration: none;
  color: var(--cs-text);
}
.cs-tool:hover{
  background: #FBFAF6;
}
.cs-tool:hover .cs-tool__link{
  color: var(--cs-ink);
}
.cs-tool__tag{
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--cs-green-deep);
  margin-bottom: 10px;
}
.cs-tool h3{
  font-size: 1.12rem;
  margin: 0 0 8px;
  color: var(--cs-ink);
}
.cs-tool p{
  font-size: 0.9rem;
  color: var(--cs-text-muted);
  margin: 0 0 18px;
  flex-grow: 1;
}
.cs-tool__link{
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--cs-green-deep);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 900px){
  .cs-tools{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 580px){
  .cs-tools{ grid-template-columns: 1fr; }
}

/* =========================================================
   Trust / "why" section
   ========================================================= */
.cs-trust{
  padding-block: 48px;
  border-top: 1px solid var(--cs-border);
  border-bottom: 1px solid var(--cs-border);
}
.cs-trust__grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  margin-top: 28px;
}
.cs-trust__item h3{
  font-size: 1.05rem;
  margin: 0 0 8px;
  color: var(--cs-ink);
}
.cs-trust__item p{
  color: var(--cs-text-muted);
  font-size: 0.94rem;
  margin: 0;
}
@media (max-width: 780px){
  .cs-trust__grid{ grid-template-columns: 1fr; }
}

/* =========================================================
   FAQ accordion
   ========================================================= */
.cs-faq{ padding-block: 48px; }
.cs-faq__item{
  border-bottom: 1px solid var(--cs-border);
}
.cs-faq__q{
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 18px 0;
  font-family: var(--cs-font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--cs-ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.cs-faq__q::after{
  content: "+";
  font-size: 1.3rem;
  color: var(--cs-green-deep);
  font-weight: 400;
  transition: transform 0.15s ease;
}
.cs-faq__item.is-open .cs-faq__q::after{ transform: rotate(45deg); }
.cs-faq__a{
  max-height: 0;
  overflow: hidden;
  color: var(--cs-text-muted);
  font-size: 0.95rem;
}
.cs-faq__item.is-open .cs-faq__a{
  max-height: 600px;
  padding-bottom: 18px;
}

/* =========================================================
   Article / tool-page content typography
   (applies inside Elementor text widgets & post content)
   ========================================================= */
.cs-article{
  max-width: 74ch;
}
.cs-article h2{
  font-size: 1.6rem;
  margin-top: 2.4em;
  margin-bottom: 0.6em;
  padding-top: 0.6em;
  border-top: 1px solid var(--cs-border);
}
.cs-article h2:first-child{ border-top: none; padding-top: 0; margin-top: 0; }
.cs-article h3{
  font-size: 1.2rem;
  margin-top: 1.6em;
  margin-bottom: 0.5em;
}
.cs-article p{ margin-bottom: 1.1em; color: var(--cs-text); }
.cs-article table{
  width: 100%;
  border-collapse: collapse;
  margin-block: 1.4em;
  font-size: 0.94rem;
}
.cs-article th, .cs-article td{
  border: 1px solid var(--cs-border);
  padding: 10px 12px;
  text-align: left;
}
.cs-article th{
  background: var(--cs-ink);
  color: #FDFCF8;
  font-weight: 600;
  font-size: 0.85rem;
}
.cs-article tr:nth-child(even) td{ background: #FBFAF6; }

/* Related-tools strip at bottom of tool pages */
.cs-related{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 20px;
}
.cs-related a{
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius-sm);
  padding: 16px;
  text-decoration: none;
  color: var(--cs-text);
  font-size: 0.9rem;
  display: block;
}
.cs-related a:hover{ border-color: var(--cs-green); background: #FBFAF6; }
.cs-related a strong{ display: block; color: var(--cs-ink); margin-bottom: 4px; }
@media (max-width: 780px){ .cs-related{ grid-template-columns: 1fr; } }

/* =========================================================
   Footer
   ========================================================= */
.cs-footer{
  background: var(--cs-ink);
  color: rgba(253,252,248,0.75);
  padding-block: 52px 28px;
  margin-top: 64px;
}
.cs-footer__grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(253,252,248,0.12);
}
.cs-footer__brand{
  font-family: var(--cs-font-display);
  font-size: 1.2rem;
  color: #FDFCF8;
  margin-bottom: 10px;
}
.cs-footer p{ font-size: 0.9rem; line-height: 1.6; max-width: 42ch; }
.cs-footer h4{
  font-family: var(--cs-font-body);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(253,252,248,0.5);
  margin: 0 0 14px;
}
.cs-footer ul{ list-style: none; margin: 0; padding: 0; }
.cs-footer li{ margin-bottom: 9px; }
.cs-footer a{ color: rgba(253,252,248,0.78); text-decoration: none; font-size: 0.92rem; }
.cs-footer a:hover{ color: var(--cs-green); }
.cs-footer__bottom{
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 24px;
  font-size: 0.84rem;
  color: rgba(253,252,248,0.5);
}
@media (max-width: 780px){
  .cs-footer__grid{ grid-template-columns: 1fr; gap: 28px; }
}