/* =========================================================
   CARD COMPONENT
   ---------------------------------------------------------
   General container used for research items, projects, etc.
   - Uses theme variables for background and border
   - Rounded corners and soft shadow for depth
   ========================================================= */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

/* ---------------------------------------------------------
   CARD TITLE
   ---------------------------------------------------------
   - Highlights the title (usually section or project name)
   - Accent color aligns with theme palette
   --------------------------------------------------------- */
.card h3 {
  margin-bottom: 0.5rem;
  color: var(--accent);
}

/* =========================================================
   META INFORMATION
   ---------------------------------------------------------
   Used for displaying dates, authors, or brief contextual info.
   ========================================================= */
.meta {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

/* =========================================================
   TAGS & CHIPS CONTAINERS
   ========================================================= */
.tags, .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* =========================================================
   TAGS
   ========================================================= */
.tag {
  background: var(--accent);
  color: white;
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-size: 0.85rem;
}

/* =========================================================
   CHIPS
   ========================================================= */
.chip {
  background: #e0e7ff;
  color: #3730a3;
  border-radius: 8px;
  padding: 2px 8px;
  font-size: 0.8rem;
}

/* =========================================================
   "SEE MORE" BUTTON
   ========================================================= */
.see-more {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  cursor: pointer;
  font-weight: 600;
  width: 100%;
  display: block;
  transition: background 0.2s ease;
}

.see-more:hover {
  background: #1e40af;
}

/* =========================================================
   COLLAPSIBLE EXTRA CONTENT
   ========================================================= */
.extra {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.5s ease;
}

.extra.open {
  max-height: 2000px;
}

/* =========================================================
   CHIPS / TAGS STYLING (Improved visual layout)
   ========================================================= */
.desc {
  margin-bottom: 0.8rem;
}

.chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.3rem;
}

.chip {
  background: #eef2ff;
  color: #1e3a8a;
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: all 0.2s ease;
  border: 1px solid rgba(30, 58, 138, 0.1);
}

.chip:hover {
  background: #dbeafe;
  color: #1e40af;
  transform: translateY(-1px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* =========================================================
   HERO TAGS (Interactive style matching .chip)
   ========================================================= */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.8rem;
}

.tag {
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: all 0.2s ease;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.tag:hover {
  background: #1e40af;
  transform: translateY(-1px);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  cursor: pointer;
}

/* =========================================================
   SOCIAL LINK BUTTONS
   ========================================================= */
.social-links {
  max-width: 1000px;
  margin: 0 auto 3rem auto;
  padding: 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: flex-start;
}

.social-button {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 1rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.social-button img {
  width: 20px;
  height: 20px;
}

.social-button:hover {
  background: var(--accent);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}

/* =========================================================
   CARD MAIN LAYOUT (Equal height text + logo)
   ---------------------------------------------------------
   Logo dynamically matches text block height for visual symmetry
   ========================================================= */

.card-main {
  display: flex;
  align-items: stretch;         /* Ensures both children have same height */
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 0.8rem;
}

.card-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;      /* Centers text vertically if short */
}

/* =========================================================
   INLINE LOGO — Transparent background & proportional scaling
   --------------------------------------------------------- */
.inline-logo {
  max-width: 140px;
  max-height: 120px;
  width: auto;
  height: auto;
  align-self: center;                /* Center vertically */
  border-radius: 10px;
  border: 1px solid var(--border);

  /* Semi-transparent background for soft blending */
  background: rgba(255, 255, 255, 0.7);  /* Light mode base */
  backdrop-filter: blur(4px);            /* Slight frosted-glass effect */

  object-fit: contain;                   /* Keep proportions */
  padding: 8px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

/* Make sure logos don't stretch or overflow */
.card-main img.inline-logo {
  display: block;
  margin: auto 0;
}

/* Hover effect: subtle glow */
.inline-logo:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
  border-color: var(--accent);
}


/* =========================================================
   RESPONSIVE LAYOUT
   ========================================================= */
@media (max-width: 700px) {
  .inline-logo {
    max-width: 100px;
    max-height: 80px;
  }
}