/*background color of all pages*/
:root {
  --bs-body-bg: rgb(245, 245, 247);
}

/* Make the body a flex container with column direction */
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh; /* full viewport height */
  margin: 0; /* remove default body margin */
}

/* Make main content take all available space */
main {
  flex: 1 0 auto; /* grow to fill space, don't shrink below content */
}

/* Footer stays at the bottom */
footer {
  flex-shrink: 0; /* don't let footer shrink */
}

.navbar {
  --bs-navbar-toggler-border-color: none;
  --bs-navbar-toggler-focus-width: none;
}

.navbar-toggler:focus {
  outline: 2px solid rgba(13, 110, 253, 1);
  /*outline-offset: 2px;*/
}

.overflow-x {
  overflow-x: scroll;
  white-space: nowrap;
}

a {
  text-decoration: none;
}

/*
a:hover,
a:focus,
a:active {
  color:  var(--bs-link-color) ; 
}
*/

p {
  color: black;
}

.link-underline {
  position: relative; /* anchor is positioning context */
  display: inline-block; /* makes width match text, not parent */
  width: fit-content; /* shrink to text width on all devices */
}

.link-underline::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px; /* just under the text */
  height: 3px;
  width: 100%; /* matches link text width */
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s;
  pointer-events: none;
}

.link-underline:hover::before {
  transform: scaleX(1);
}

/* adds scroller on the right side of browser so all pages look consistent */
.page-scroll {
  overflow-y: scroll;
}

.card {
  --bs-card-border-width: 0px;
  /*outline: 1px solid rgb(237, 237, 240);*/
  background-color: none;
  background: none;
}

.card-title {
  text-decoration: none;
  font-weight: 400;
}

.card-subtitle {
  text-decoration: none;
  color: rgb(108, 117, 125);
  font-weight: 400;
}

.text-black {
  color: black;
}

.text-muted-custom {
  color: grey
}

.text-accent-coral {
  color: rgb(249, 73, 94);
}

.text-accent-green {
  color: rgb(81, 184, 51);
}

.text-accent-blue {
  color: rgb(51, 179, 238);
}

.content-width {
  max-width: 90%;
}

.home-page {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
}

/* Home page main should not stretch */
.home-page main {
  flex: 0 0 auto; /* don’t grow or shrink, just size to content */
}

.hero h1 {
  font-size: clamp(3rem, 16vw, 5rem);
  margin-bottom: 28px;

  max-width: 100%;

  margin: 0;

  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 400;

  letter-spacing: -0.04em;
  line-height: 0.95;

  overflow-wrap: anywhere;
}

  .username {
  font-weight: 700;
  color: #0c80df; /* change this to any color you want */
}

/*.hover-expand{
  transition: 700ms ease;
  font-variation-settings: "wght" 311;

}
.hover-expand:hover {
  font-variation-settings: "wght" 582;
  letter-spacing: 2px;
}*/

.hero-title {
  font-size: clamp(3rem, 5vw, 5rem);
  /*Min: 2rem → the smallest the font will ever be (on tiny screens).
    Preferred: 5vw → scales based on viewport width (vw = viewport width unit).
    1vw = 1% of the viewport’s width.
    So, 5vw means “make the font size 5% of the current window width.”
    Max: 5rem → the largest it will ever be (on wide screens).*/
  margin: 0;
  font-weight: 400;
  color: black;
  /*color: #777;*/

  white-space: nowrap; /* keeps it on one line */
}


.hero-subtitle {
  min-height: 2rem;

  margin: 3rem 0 0.75rem;

  /*color: var(--site-muted);*/
  color: lightgray;/*#858585;*/

  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 700;

  letter-spacing: 0.14em;
  text-transform: uppercase;

  opacity: 1;
  transition: opacity 250ms ease;
}

.home-navigation {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  justify-content: center;
}

.home-navigation a {
  text-decoration: none;
  font-weight: normal;
  font-size: 1rem;
}

/* home-navigation - Responsive: vertical links on narrow screens */
@media (max-width: 600px) {
  .home-navigation {
    flex-direction: column;
    gap: 30px;
    align-items: center; /* center each link horizontally */
  }
}

/*this bit is tied to lines 118-130 in common.js 
it is heralded with the comment "//WAIT TO SHOW INDEX PAGE CONTENTS" */
.page-fade {
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.25s ease-in;
}
.page-fade.visible {
  visibility: visible;
  opacity: 1;
}

/*-----TOGGLE SHOW HIDE BLOG SECTION TITLE BUTTONS-----*/
/* Make toggle buttons look like real buttons */
#blog-content .section-toggle {
  /*all: unset;*/
  cursor: pointer;
  display: inline-block;

  width: 96%;
  text-align: center;
  padding: 4px 8px; /*0.2em 0.2em; */ /* increase touch area */
  font-weight: 700;
  /*background-color: #1d1d1f; */
  background-color: black; /* #0d6efd;*/
  color: rgb(
    245,
    245,
    247
  ); /* color of background as set at the top of this file*/
  border: none; /* reset border */
  border-radius: 4px;
  cursor: pointer;
  user-select: none;
  -webkit-appearance: none; /* disable default button styling on older Android */
  appearance: none;
}

/* Hover effect */
/*#blog-content .section-toggle:hover {
  /*background-color: #0a58ca;
  /* background-color: #2c2c2e;  */ /* Slightly lighter on hover 
}*/

/* Active / pressed effect 
#blog-content .section-toggle:active { 
  /*background-color: #004080;
  /*background-color: #3a3a3c;     Even lighter on press 
} */

/* Focus / accessibility outline */
#blog-content .section-toggle:focus {
  outline: 3px solid rgba(13, 110, 253, 1);
  outline-offset: 2px;
}

/* Hide articles when section is collapsed */
#blog-content section[data-collapsed="true"] .articles {
  display: none !important;
}

/*-----TOGGLE SHOW HIDE LITERATURE SECTION TITLE BUTTONS-----*/
/* Make toggle buttons look like real buttons */
#literature-content .section-toggle {
  /*all: unset;*/
  cursor: pointer;
  display: inline-block;

  width: 96%;
  text-align: center;
  padding: 4px 8px; /*0.2em 0.2em; */ /* increase touch area */
  font-weight: 700;
  /*background-color: #1d1d1f; */
  background-color: black;
  color: rgb(
    245,
    245,
    247
  ); /* color of background as set at the top of this file*/
  border: none; /* reset border */
  border-radius: 4px;
  cursor: pointer;
  user-select: none;
  -webkit-appearance: none; /* disable default button styling on older Android */
  appearance: none;
}

/* Hover effect */
/* #literature-content .section-toggle:hover {
  /*background-color: #0a58ca;
  /* background-color: #2c2c2e;  */ /* Slightly lighter on hover 
}*/

/* Active / pressed effect */
/* #literature-content .section-toggle:active {
  /*background-color: #004080;
  /*background-color: #3a3a3c;     Even lighter on press 
} */

/* Focus / accessibility outline */
#literature-content .section-toggle:focus {
  outline: 3px solid rgba(13, 110, 253, 1);
  outline-offset: 2px;
}

/* Hide articles when section is collapsed */
#literature-content section[data-collapsed="true"] .articles {
  display: none !important;
}

/*-----TOGGLE SHOW HIDE LITERATURE ARTICLES BUTTONS-----*/
/* Make toggle buttons look like real buttons */
.article-toggle {
  /*all: unset;*/
  cursor: pointer;
  display: inline-block;

  width: 96%;
  text-align: center;
  padding: 4px 8px; /*0.2em 0.2em; */ /* increase touch area */
  font-weight: 700;
  /*background-color: #1d1d1f; */
  background-color: #d0d0d6;
  color: black; /* color of background as set at the top of this file*/
  border: none; /* reset border */
  border-radius: 4px;
  cursor: pointer;
  user-select: none;
  -webkit-appearance: none; /* disable default button styling on older Android */
  appearance: none;
}

/* Hover effect 
.article-toggle:hover { */
  /*background-color: #b9b9c0;
  /* background-color: #2c2c2e;  */ /* Slightly lighter on hover 
} */

/* Active / pressed effect 
.article-toggle:active { */
  /*background-color: #a2a2ab;
  /*background-color: #3a3a3c;     Even lighter on press 
}*/

/* Focus / accessibility outline */
.article-toggle:focus {
  outline: 3px solid rgba(13, 110, 253, 1);
  outline-offset: 2px;
}