html{scroll-behavior:smooth;}
/* Shared site styling for calccompoundinterest.com pages */

:root{
  --bg-soft: #f2f8f4;
  --text: #444;
  --heading: #2c3e50;
  --green: #28a745;
  --green-hover: #218838;
  --border: #ddd;
}

* { box-sizing: border-box; }

body{
  font-family: Arial, sans-serif;
  margin: 20px;
  text-align: center;
  color: var(--text);
}

.content-container{
  max-width: 900px;
  margin: auto;
  text-align: left;
}

.hero{
  background: var(--bg-soft);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  margin-bottom: 25px;
}

.hero h1{
  font-size: 32px;
  color: var(--heading);
  margin: 0 0 10px;
}

.hero p{
  font-size: 18px;
  color: var(--text);
  line-height: 1.6;
  max-width: 760px;
  margin: 0 auto;
}

.hero img{
  width: 100%;
  max-width: 720px;
  height: auto;
  display: block;
  margin: 20px auto 0;
  border-radius: 12px;
}

/* Wider hero image on the homepage only */
.hero img.hero-wide{
  max-width: 920px;
  margin-top: 14px;
  border-radius: 16px;
}



@media (max-width: 820px){
  body{ margin: 14px; }
  .hero{ padding: 24px 16px; }
  .hero h1{ font-size: 28px; }
}

/* Home page big buttons */
.btn-grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}
@media (max-width: 700px){
  .btn-grid{ grid-template-columns: 1fr; }
}
.calc-btn{
  display:block;
  text-align:center;
  background: var(--green);
  color:#fff;
  padding: 16px 14px;
  border-radius: 8px;
  text-decoration:none;
  font-weight:bold;
  font-size: 17px;
  transition: background .25s ease, transform .05s ease;
}
.calc-btn:hover{ background: var(--green-hover); }
.calc-btn:active{ transform: translateY(1px); }
.calc-btn small{
  display:block;
  font-weight: normal;
  opacity:.95;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.35;
}

/* Cards + layout */
.grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}
@media (max-width: 820px){
  .grid{ grid-template-columns: 1fr; }
}
.card{
  background:#fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
}

.card h2{
  margin-top:0;
  color: var(--heading);
  font-size: 20px;
}

.muted{
  color: var(--text);
  line-height: 1.6;
}

/* Form elements */
label, input, select{
  display:block;
  width:100%;
  margin-bottom:10px;
  text-align:left;
}
input, select{
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 16px;
}
button{
  width:100%;
  background: var(--green);
  color:#fff;
  padding: 12px;
  border:none;
  cursor:pointer;
  font-size:16px;
  font-weight:bold;
  border-radius: 6px;
}
button:hover{ background: var(--green-hover); }

/* Results */
.results{
  display:none;
  margin-top: 12px;
  padding: 14px;
  border-radius: 10px;
  background: #e6ffe6;
  text-align:left;
}
.results .big{
  font-size: 18px;
  font-weight: bold;
  color: var(--heading);
  margin: 6px 0;
}
.results p{
  margin: 8px 0;
  color: var(--text);
  line-height: 1.6;
}

/* Info boxes */
.note, .info-box{
  margin-top: 20px;
  padding: 16px;
  background: var(--bg-soft);
  border-radius: 10px;
  text-align:center;
}
.note a, .info-box a{
  font-weight:bold;
  color: var(--green);
  text-decoration:none;
}
.note a:hover, .info-box a:hover{ text-decoration: underline; }

/* Mini button grid */
.other-tools{
  margin-top: 24px;
  padding: 16px;
  background: var(--bg-soft);
  border-radius: 10px;
  text-align:center;
}
.other-tools h3{
  margin: 0 0 12px;
  color: var(--heading);
  font-size: 18px;
}
.mini-grid{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:center;
}
.mini-btn{
  display:inline-block;
  padding: 10px 12px;
  background: var(--green);
  color:#fff;
  text-decoration:none;
  border-radius: 8px;
  font-weight:bold;
  font-size: 14px;
}
.mini-btn:hover{ background: var(--green-hover); }

/* Nav links */
.nav-links{
  text-align:center;
  margin-top: 26px;
}
.nav-links a{
  margin: 0 10px;
  font-weight:bold;
  color: var(--heading);
  text-decoration:none;
}
.nav-links a:hover{ text-decoration: underline; }

/* Tables + charts (grow page) */
table{
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}
table, th, td{ border: 1px solid var(--border); }
th, td{ padding: 8px; text-align:right; }
th{ background: #f2f2f2; }
canvas{ max-width: 100%; margin-top: 12px; }

/* Footer */
.footer{
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align:center;
  font-size: 16px;
}
.footer a{
  text-decoration:none;
  color: var(--heading);
  font-weight:bold;
  margin: 0 10px;
}
.footer a:hover{ text-decoration: underline; }

/* Small hero image variant (e.g., SVG on grow page) */
.hero .hero-small{
  max-width: 360px;
  border-radius: 0;
  margin-top: 18px;
}


/* Shared header/footer includes */
.site-header{
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin: 0 auto 18px;
  max-width: 900px;
  text-align: left;
}
.site-header-inner{
  display:flex;
  gap: 14px;
  align-items:center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.site-brand{
  font-weight: 800;
  color: var(--heading);
  text-decoration: none;
  font-size: 18px;
  letter-spacing: .2px;
}
.site-nav{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
}
.site-nav a{
  text-decoration:none;
  color: var(--heading);
  font-weight: bold;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid transparent;
}
.site-nav a:hover{
  border-color: var(--border);
  background: #fff;
}

.site-footer{
  margin: 30px auto 0;
  max-width: 900px;
  border-top: 1px solid var(--border);
  padding-top: 18px;
  text-align: center;
}
.site-footer-inner a{
  text-decoration:none;
  color: var(--heading);
  font-weight: bold;
}
.site-footer-inner a:hover{ text-decoration: underline; }
.site-footer-note{
  margin: 10px 0 0;
  color: var(--text);
  font-size: 14px;
}
.sep{ margin: 0 8px; color: #777; }

@media (max-width: 520px){
  .site-nav a{ padding: 8px 8px; }
}

.site-nav a.active{
  border-color: var(--border);
  background: #fff;
}

.back-to-top{
  display: inline-block;
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  text-decoration: none;
  color: var(--heading);
  font-weight: bold;
}
.back-to-top:hover{
  background: #fff;
}
/* Show Back to top mostly on mobile */
@media (min-width: 700px){
  .back-to-top{ display: none; }
}


/* FAQ accordion */
.faq details{
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  background: #fff;
  margin: 10px 0;
}

.faq summary{
  cursor: pointer;
  font-weight: bold;
  color: var(--heading);
  list-style: none;
}

.faq summary::-webkit-details-marker{ display:none; }

.faq summary:after{
  content: "＋";
  float: right;
  font-weight: 900;
}

.faq details[open] summary:after{
  content: "−";
}

.faq p, .faq li{
  margin: 10px 0;
  line-height: 1.6;
  color: var(--text);
}

.faq a{
  color: var(--green);
  font-weight: bold;
  text-decoration: none;
}
.faq a:hover{ text-decoration: underline; }


/* AdSense manual units */
.ad-container{margin:18px 0;}
.ad-container ins{display:block;}


/* Secondary action button (e.g., compare) */
.secondary-btn{
  margin-top: 10px;
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  padding: 12px 16px;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
}
.secondary-btn:hover{
  filter: brightness(0.95);
}

/* Compare results block */
.compare-results{
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  background: #f7f9fb;
  border: 1px solid rgba(0,0,0,0.06);
}
.compare-results .row{
  display:flex;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px dashed rgba(0,0,0,0.10);
}
.compare-results .row:last-child{ border-bottom: none; }
.compare-results .label{ font-weight: 700; color: var(--heading); }
.compare-results .value{ font-variant-numeric: tabular-nums; }