/* ================= GLOBAL ================= */
:root {
  --main-color: #1f4e79;      /* Trustworthy blue */
  --accent-color: #d97706;   /* Solar amber */
  --text-color: #2f2f2f;
  --border-color: #e5e7eb;
}

body, html {
  margin: 0;
  padding: 0;
  font-family: 'Open Sans', Arial, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  background: linear-gradient(to bottom, #f0f7ff 0%, #f9f9f9 100%); /* subtle blue gradient */
  color: var(--text-color);
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  color: var(--main-color);
}

.logo {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  color: var(--main-color);
}

.container {
  width: 92%;
  max-width: 1320px;
  margin: 0 auto;
}


/* ================= TOOLTIPS IN HEADINGS ================= */
/* Tooltip icon wrapper */
.tooltip-icon {
  display: inline-block;
  position: relative;
  margin-left: 4px; /* smaller spacing since icon is tiny */
  cursor: pointer;
  vertical-align: super; /* superscript effect */
}

/* Small unfilled circular "i" */
.tooltip-i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 11px;           /* ~60% of previous 18px */
  height: 11px;          /* keep it square */
  border-radius: 50%;
  border: 1px solid var(--accent-color);  /* unfilled circle */
  color: var(--accent-color);             /* i in highlight color */
  font-size: 9px;        /* smaller font to fit circle */
  font-weight: bold;
  line-height: 1;
  text-align: center;
}

/* Tooltip text box */
.tooltip-icon .tooltip-text {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-color);   /* use your highlight color */
  color: #fff;
  font-family: 'Open Sans', sans-serif;
  font-weight: 400;  /* e.g., medium weight */
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.4;
  white-space: normal;
  width: max-content;
  max-width: 220px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease;
  z-index: 1000;
}

/* Small arrow under tooltip */
.tooltip-icon .tooltip-text::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 5px;
  border-style: solid;
  border-color: var(--accent-color) transparent transparent transparent; /* arrow matches background */
}

/* Show tooltip on hover or focus */
.tooltip-icon:hover .tooltip-text,
.tooltip-icon:focus .tooltip-text {
  opacity: 1;
  visibility: visible;
}


/* ================= HEADER ================= */
.site-header {
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 1000;

  /* clean separation */
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
}

.logo {
  font-size: 1.6em;
  font-weight: 700;
}

/* ================= NAVIGATION ================= */
.main-nav {
  position: relative;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 22px;
  margin: 0;
  padding: 0;
}

.nav-links li a {
  text-decoration: none;
  font-weight: 600;
  color: var(--main-color);
  transition: color 0.2s ease;

  /* added for underline indicator */
  position: relative;
  padding-bottom: 4px;
}

/* hover underline */
.nav-links li a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width 0.2s ease;
}

.nav-links li a:hover {
  color: var(--accent-color);
}

.nav-links li a:hover::after {
  width: 100%;
}

/* active (current page) */
.nav-links li a.active {
  color: var(--accent-color);
}

.nav-links li a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6em;
  cursor: pointer;
  color: var(--main-color);
}

/* ================= MOBILE HEADER ================= */
@media screen and (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    flex-direction: column;
    position: absolute;
    right: 0;
    top: 100%;
    background: #ffffff;
    width: 240px;
    display: none;

    border: 1px solid var(--border-color);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
  }

  .nav-links.nav-open {
    display: flex;
  }

  .nav-links li {
    padding: 14px 16px;
  }

  .nav-links li a {
    color: var(--main-color);
  }
}

/* ================= MAIN SECTIONS ================= */
.section {
  background: #fff;
  padding-top: 5px; /* or whatever looks good */
  padding-bottom: 20px; /* keep bottom padding */
  padding-left: 20px;
  padding-right: 20px;
  margin-bottom: 20px;
  border-radius: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  background: linear-gradient(to bottom, #ffffff 0%, #f9f9f9 100%); 
}

/* Extra top gap from header for first section */
.section:first-of-type {
  margin-top: 40px; /* adjust as needed, gives breathing room from header */
}

/* ================= TOP LAYOUT ================= */
.top-layout {
  display: block;
}

@media (min-width: 900px) {
  .top-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 20px;
    align-items: start;
  }
}

/* ================= MAP ================= */
#map {
  overflow: hidden;
  margin-bottom: 20px; /* adds a gap under the map */

}

#map svg {
  height: 100%;
  width: auto;
  max-width: 100%;
  display: block;
  margin: 0 auto;
}

/* ================= INPUT ROWS ================= */
.input-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}

.input-row label {
  white-space: nowrap;
  font-weight: 500;
}

.input-row .value {
  min-width: 70px;
  text-align: right;
  font-weight: 600;
  color: var(--accent-color);
}

.input-row .house-size {
  display: block;           /* forces it onto its own line */
  text-align: right;        /* right-aligns the text */
  color: var(--accent-color);  /* orange/yellow color */
  font-weight: 600;         /* match the usual slider value style */
  margin-top: 2px;          /* small gap from slider/value */
}

/* ================= CHARTS ================= */
.charts-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

@media (min-width: 768px) {
  .charts-container {
    grid-template-columns: 1fr 1fr;
  }
}

/* ================= CHART BOXES ================= */
.chart-box {
  width: 100%;
  position: relative;  /* keep for absolute positioning if needed */
  display: block;      /* default block layout */
}

.chart-box h3 {
  margin: 0 0 6px 0;    /* small spacing below heading */
  font-size: 1em;       /* adjust heading size as needed */
  font-weight: 500;
  color: var(--main-color);
}

.chart-box canvas {
  width: 100% !important;
  height: 340px !important;   /* fixed chart height */
  display: block;
}

/* ================= HEADINGS INSIDE SECTION BOXES ================= */

.section h2 {
  margin-top: 0px;       /* smaller space above */
  margin-bottom: 6px;    /* smaller space below */
  font-size: 1.3em;      /* adjust smaller than default h2; tweak as needed */
  font-weight: 500;       /* optional: slightly bolder if you like */
}

/* ================= TOTAL SAVINGS TEXT ================= */
/* Total savings line under h2 */
.total-savings {
  font-weight: 600;
  color: var(--accent-color);   /* highlight color */
  margin: 4px 0 12px 0;         /* small spacing around the line */
}

.total-savings-label {
  display: inline-block;                 /* ?? this is the key line */
  font-weight: 500;           /* match input labels */
  margin-top: 10px;
  margin-bottom: 20px;
  padding: 5px 14px;
  border: 2px solid rgba(217, 119, 6, 0.65); /* softened accent color */
  border-radius: 3px;
  background: rgba(217, 119, 6, 0.05);      /* very light amber wash */
  font-size: 1.2em;
}


/* ============================================
   Subtle styling for numeric input boxes
   ============================================ */
#downpayment,
#singleIncentive, #stateSelect {
  border: 1px solid #ccc;          /* soft gray border */
  border-radius: 6px;              /* rounded corners */
  padding: 6px 10px;               /* inner spacing */
  background-color: #f9f9f9;       /* very light background */
  font-size: 14px;                 /* readable size */
  transition: border-color 0.2s, box-shadow 0.2s; /* smooth focus transition */
  width: 100%;                     /* fill container width, optional */
  box-sizing: border-box;          /* ensure padding doesn't break width */
}

/* subtle highlight on focus */
#downpayment:focus,
#singleIncentive:focus, #stateSelect:focus {
  border-color: #80bdff;           /* light blue border */
  box-shadow: 0 0 4px rgba(0,123,255,0.3); /* soft glow */
  outline: none;                   /* remove default outline */
}

#stateSelect {
  width: 180px;  /* or whatever fits your layout */
  display: inline-block; /* ensures it doesn’t take full width */
}

/* ============================================
   Form Inputs & Radio Styling
   ============================================ */
input[type="radio"] {
  accent-color: var(--accent-color);
}

/* ================= FOOTER ================= */
.site-footer {
  background: var(--main-color);
  color: #fff;
  text-align: center;
  padding: 24px 0;
  font-size: 0.9em;
}

/* ================= SLIDER BASE ================= */
input[type="range"] {
  -webkit-appearance: none; /* remove default for WebKit */
  width: 100%;
  height: 6px;              /* thin track */
  background: #e5e7eb;      /* unfilled track color */
  border-radius: 3px;
  outline: none;
  margin: 0;
  cursor: pointer;
}

/* ---------------- WebKit (Chrome, Safari, Edge) ---------------- */
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;  /* required to style thumb */
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-color);
  border: 2px solid #ffffff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  transition: filter 0.2s, transform 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  filter: brightness(1.1);
  transform: scale(1.05);
}

/* Track gradient is set via JS for filled portion */

/* ---------------- Firefox ---------------- */
input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-color);
  border: 2px solid #ffffff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  cursor: pointer;
  transition: filter 0.2s, transform 0.2s;
}

input[type="range"]::-moz-range-thumb:hover {
  filter: brightness(1.1);
  transform: scale(1.05);
}

input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 3px;
  background: #e5e7eb; /* unfilled track */
}

input[type="range"]::-moz-range-progress {
  height: 6px;
  border-radius: 3px;
  background: var(--accent-color); /* filled portion */
}

/* ---------------- IE / Edge ---------------- */
input[type="range"]::-ms-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-color);
  border: 2px solid #ffffff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  cursor: pointer;
}

input[type="range"]::-ms-fill-lower {
  background: var(--accent-color);
  border-radius: 3px;
}

input[type="range"]::-ms-fill-upper {
  background: #e5e7eb;
  border-radius: 3px;
}