/* =========================================================
   Base / Reset
   ========================================================= */

:root {
  font-family: "Roboto Mono";
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  color: black;
  background-color: white;
  padding: 0;
  font-size: 100%;
}

/* Make images behave sanely by default */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* =========================================================
   Top Navigation (Glass Overlay Tabs)
   ========================================================= */

.pageTabs {
  position: fixed;
  top: 0;
  width: 100%;
  height: 30px;
  z-index: 10;

  display: flex;
  justify-content: flex-end;

  /* solid, subtle overlay (no glass) */
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.tablink {
  width: 120px;
  height: 100%;
  border: none;
  outline: none;

  /* keep your tab look */
  background-color: rgba(85, 85, 85, 0.75);
  color: white;
  cursor: pointer;

  font-size: 17px;
  text-decoration: none;

  display: flex;
  align-items: center;
  justify-content: center;

  /* enables underline without shifting layout */
  border-bottom: 2px solid transparent;
}

.tablink:hover {
  background-color: rgba(119, 119, 119, 0.85);
}

.tablink.active {
  /* keep background change AND add underline */
  background-color: rgba(128, 0, 128, 0.85); /* purple */
  border-bottom-color: rgba(255, 255, 255, 0.9);
}

/* =========================================================
   Page Sections
   ========================================================= */

.tabcontent {
  display: none;  /* pages override with inline style="display:block" */
  height: 100%;
  color: black;
}

/* =========================================================
   Home Page Layout
   ========================================================= */

/* Keep tabs overlaying image, but prevent text from sitting under tabs */
.container,
.research-section {
  padding-top: 30px;
}

.container {
  width: min(700px, 100%);
  margin: 0 auto;
  padding: 0 12px;
}

.header-section {
  width: min(700px, 100%);
  height: 100px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: left;
}

.header-section h1,
.header-section h2 {
  color: rgb(113, 15, 113);
  margin: 0;
}

.header-section h1 {
  font-weight: 700;
}

.header-section h2 {
  font-weight: 500;
  font-size: medium;
}

/* Optional profile image (currently commented out in HTML) */
.img-frame1 {
  position: relative;
  top: 0px;
  left: 100px;
  margin: 0px 5px 10px 50px;
}

.img-frame1 img {
  width: 288px;
  height: 384px;
  border-radius: 50%;
}

/* Hero images */
.img-frame2 {
  position: relative;
  overflow: hidden;
}

.img-frame2 img {
  object-fit: scale-down;
  object-position: center;
  width: 100%;
}

/* Links row */
.links {
  height: 40px;
  margin: 0;
}

.links a {
  color: #599dd9;
  display: inline;
  font-weight: 1000;
  padding: 0 12px 0 0;
}

.links i {
  color: black;
  font-size: 20px;
  margin-right: 10px;
}

/* Snowflake / cat image */
.snowFlake {
  display: flex;
  justify-content: center;
  margin: 10px 0 0 0;
}

.snowFlake img {
  width: 200px;
  height: 200px;
}

/* Divider (currently unused/commented) */
.snowflake-divider {
  display: flex;
  justify-content: center;
  margin: 0;
}

.snowflake-divider img {
  width: 50px;
  height: 50px;
}

/* =========================================================
   Research Page
   ========================================================= */

.research-section {
  margin: 0px 10px 0 10px;
  padding-bottom: 30px;
}

.research-section h3 {
  margin: 1.25em 0 0 0;
}

.research-section h4 {
  font-weight: 500;
  font-size: medium;
  margin: 0;
}

.research-section p {
  margin: 1em 0;
}

/* About buttons */
.moreLess {
  border: none;
  background: none;
  padding: 0;

  color: blue;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
}

/* =========================================================
   Responsive polish (minimal, safe)
   ========================================================= */

@media (max-width: 760px) {
  .header-section {
    height: auto;
  }
}

@media (max-width: 420px) {
  .tablink {
    width: 50%;
  }
}