/* ====== GLOBAL SETTINGS ====== */

:root {
  --blue: #173a86;     /* supportive accent */
  --green: #2db08b;    /* main accent pair */
  --purple: #4b238f;   /* main accent pair */

  --text-dark: #222;
  --text-light: #fff;
  --bg-light: #fafafa;
  --bg-white: #ffffff;

  --card-shadow: 0 2px 8px rgba(0,0,0,0.08);
  --transition: 0.3s ease-in-out;
}




* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
  background: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
}

/* ====== HEADER ====== */

header {
  background: linear-gradient(90deg, var(--purple), var(--green));
  color: var(--text-light);
  padding: 1.6rem 1.2rem;
  text-align: center;
  box-shadow: var(--card-shadow);
}

header h1 {
  font-size: 2rem;
  margin-bottom: 0.6rem;
  font-weight: 600;
}

/* ====== NAVIGATION ====== */

a {
  color: var(--purple);
  text-decoration: none;
  font-weight: 500;
}

a:hover,
a:active,
a:focus {
  color: var(--green);
  text-decoration: underline;
}


nav {
  margin-top: 0.4rem;
}

nav a {
  text-decoration: none;
  color: var(--text-light);
  padding: 0.4rem 0.9rem;
  margin: 0 0.2rem;
  border-radius: 0.3rem;
  font-size: 0.95rem;
  transition: var(--transition);
}

nav a:hover {
  background: rgba(255,255,255,0.15);
}

nav .active {
  background: rgba(255,255,255,0.28);
}

/* ====== PAGE SECTIONS ====== */

section {
  max-width: 900px;
  background: var(--bg-white);
  margin: 2.5rem auto;
  padding: 2rem;
  border-radius: 0.6rem;
  box-shadow: var(--card-shadow);
}

section h2 {
  color: var(--blue) !important ;
  font-size: 1.7rem;
  margin-bottom: 0.8rem;
}

section h3 {
  color: var(--blue);
  margin-top: 1.5rem;
}

p, li {
  font-size: 1rem;
  margin-bottom: 0.8rem;
}

/* ====== HOMEPAGE INTRO ====== */

.intro {
  text-align: center;
}

.profile-pic {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--card-shadow);
  margin-bottom: 1.3rem;
  border: 3px solid var(--blue);
}

/* ====== BUTTONS ====== */

.btn {
  display: inline-block;
  background: var(--purple);
  color: var(--text-light);
  padding: 0.6rem 1.2rem;
  margin-top: 1rem;
  border-radius: 0.3rem;
  font-size: 1rem;
  text-decoration: none;
  transition: var(--transition);
}

.btn:hover {
  background: var(--green);
  color: var(--text-light);
}

/* ====== FOOTER ====== */

footer {
  text-align: center;
  padding: 1.3rem 0;
  margin-top: 1rem;
  color: #666;
  font-size: 0.9rem;
}

/* ====== PUBLICATION LIST ====== */

ol li {
  margin-bottom: 0.9rem;
  margin-left: 2rem;
}

section ul ul,
section ol ul,
section ul ol {
  padding-left: 2rem;
  margin-top: 0.5rem;
  list-style-type: circle;
}

ul li {
 margin-left: 2rem;
}

ol li::marker {
  font-weight: bold;
}





.software-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  margin-top: 2rem;
  align-items: stretch;
}

.software-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end; /* ⬅️ key change */
  gap: 1rem;
  padding: 2rem 1.5rem;
  border-radius: 12px;
  min-height: 200px;
  text-align: center;
  transition: transform 0.2s ease;
}


.software-item img {
  max-width: 160px;
  max-height: 80px;
  object-fit: contain;
}

.software-item span {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--purple);
}

/* Hover interaction */
.software-item:hover span {
  color: var(--green);
}

.software-item:hover {
  transform: translateY(-3px);
}

.home-text p{
  text-align: justify !important;
}







/* ====== RESEARCH SECTIONS WITH IMAGES ====== */

.research-block {
  display: flex;
  gap: 2.2rem;
  margin-top: 1.8rem;
  align-items: flex-start;
}

.float-imagel{
  float: left;
  width: 400px;
  margin-right:  1.5rem; /* space between text and image */
  border-radius: 6px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
}

.float-imager{
  float: right;
  width: 400px;
  margin-right:  1.5rem; /* space between text and image */
  border-radius: 6px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
}



.float-figure img {
  float: right;
  width: 400px;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
}

.float-figure {
   float: right;
   width: 400px;
 }

.float-figure figcaption {
  font-size: 0.85rem;
  color: #555;
  margin-top: 0.4rem;
  line-height: 1.3;
  bottom: 0;
  left: 0;
  width: 400px;
  padding: 0.35rem 0.5rem;
  font-size: 0.75rem;
  line-height: 1.2;
  color: #fff;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 0 0 6px 6px;
  box-sizing: border-box;
}