/* --- Two-column profile layout --- */
.profile-container {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 2rem;
}

.profile-left {
  flex: 0 0 400px;
  text-align: center;
}

.profile-right {
  flex: 1;
  min-width: 250px;
}

.md-typeset h3 {
  font-weight: 700;  /* 700 = bold */
}

.profile-img {
  width: 220px;
  height: 220px;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  margin-bottom: 1rem;
}

.profile-name {
  margin: 0.5rem 0;
}

.profile-buttons .md-button {
  display: inline-block;
  margin: 0.25rem;
}

/* Responsive behavior */
@media (max-width: 768px) {
  .profile-container {
    flex-direction: column;
    align-items: center;
  }
  .profile-left, .profile-right {
    text-align: center;
  }
}

/* homepage selected project section */
/* Row layout */
.proj-row {
  display: grid;
  grid-template-columns: 420px 1fr;   /* media | text */
  gap: 1.25rem;
  align-items: start;
  margin: 1.25rem 0 2rem;
}

.proj-media {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,.12);
}

/* Image / video sizing */
.proj-media img,
.proj-media video {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

/* Responsive YouTube wrapper (16:9) */
.proj-media .yt {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
}
.proj-media .yt iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
}

/* Text area */
.proj-text h3 { margin: 0 0 .35rem; }
.proj-text p { margin: 0 0 .5rem; }
.proj-text ul { margin: .25rem 0 1rem 1.2rem; }

/* Compact “Page” button spacing */
.proj-text .md-button { margin-top: .25rem; }

/* Mobile: stack vertically */
@media (max-width: 900px) {
  .proj-row {
    grid-template-columns: 1fr;
  }
  .proj-media img, .proj-media video { height: 220px; }
}

/* ================================
   Projects page: 2 columns x 3 rows grid + hover overlay
   (Used by projects.md)
   ================================ */

.proj-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 1rem 0 2rem;
}

@media (max-width: 900px) {
  .proj-grid { grid-template-columns: 1fr; }
}

.proj-card {
  position: relative;
  display: block;
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none !important;
  color: inherit;
  background: var(--md-default-bg-color);
  border: 1px solid rgba(0,0,0,.08);
  box-shadow: 0 2px 10px rgba(0,0,0,.12);
}

.proj-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: rgba(0,0,0,.06);
}

.proj-thumb img,
.proj-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Hover overlay */
.proj-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 8px;
  padding: 14px;
  background: linear-gradient(to top, rgba(0,0,0,.72), rgba(0,0,0,.05));
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .18s ease, transform .18s ease;
}

.proj-card:hover .proj-overlay,
.proj-card:focus .proj-overlay,
.proj-card:focus-within .proj-overlay {
  opacity: 1;
  transform: translateY(0);
}

.proj-overlay h3 {
  margin: 0;
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.2;
}

.proj-overlay p {
  margin: 0;
  color: rgba(255,255,255,.92);
  font-size: .92rem;
  line-height: 1.35;
}

/* Placeholder cards (so the template is visible even without hover) */
.proj-card.proj-placeholder .proj-thumb {
  background: repeating-linear-gradient(
    45deg,
    rgba(0,0,0,.05),
    rgba(0,0,0,.05) 14px,
    rgba(0,0,0,.09) 14px,
    rgba(0,0,0,.09) 28px
  );
}

.proj-card.proj-placeholder .proj-overlay {
  opacity: 1;
  transform: translateY(0);
  background: linear-gradient(to top, rgba(0,0,0,.60), rgba(0,0,0,.18));
}

/* Project banner (per-page) */
.project-banner {
  position: relative;
  width: 100%;
  overflow: hidden;
  margin-bottom: 1rem;
}
.project-banner img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 360px;
}
.project-banner-overlay {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 8px 22px 4px;
  background: linear-gradient(to top, rgba(0,0,0,0.55), rgba(0,0,0,0));
  display: flex;
  align-items: flex-end;
}
.project-title {
  margin: 0;
  color: #000000;
  font-weight: 900;
  letter-spacing: -0.035em;
  font-size: clamp(1.25rem, 3.2vw, 2rem);
  line-height: 1.05;
  background: rgba(255, 255, 255, 0.9);
  padding: 8px 12px;
  border-radius: 8px;
  display: inline-block;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  text-shadow: none;
  transform: translateY(18px);
}

@media (max-width: 600px) {
  .project-banner img { max-height: 220px; }
  .project-banner-overlay { padding: 12px; }
  .project-title { font-size: 1.25rem; }
}

/* Background section: left text, right stacked images with equal height */
.bg-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr; /* text | images */
  gap: 1rem;
  align-items: start;
  margin: 1rem 0 2rem;
}
.bg-left p { margin: 0 0 0.9rem; }
.bg-right {
  display: flex;
  align-items: stretch;
  gap: 10px;
  height: 360px;        /* 👈 master height */
}

.bg-right img {
  height: 100%;
  width: auto;          /* 👈 width adapts naturally */
  object-fit: cover;
  border-radius: 8px;
  display: block;
}


@media (max-width: 900px) {
  .bg-section { grid-template-columns: 1fr; }
  .bg-right { height: auto; grid-auto-rows: auto; }
  .bg-right img { height: auto; }
}

/* Hardware platform: left parameters, right three images side-by-side equal height */
.hw-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr; /* text | images */
  gap: 1rem;
  align-items: start;
  margin: 1rem 0 2rem;
}
.hw-left ul { margin: 0 0 0 1.1rem; }
.hw-right {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  /* height: 360px; total display height for the three images */
  gap: 8px;
}
.hw-figure {
  display: flex;
  flex-direction: column;
  /* height: 100%;               👈 critical */
}
.hw-figure img {
  height: 300px;     /* same image height */
  width: auto;       /* natural width */
  object-fit: contain;
  display: block;
}
.hw-figure figcaption {
  flex: 0 0 34px;             /* fixed caption height */
  text-align: center;
  font-size: 0.92rem;
  margin: 6px 0 0;
  background: rgba(255,255,255,0.86);
  color: #000;
  padding: 4px 8px;
  border-radius: 6px;
  align-self: center;
}

@media (max-width: 900px) {
  .hw-section { grid-template-columns: 1fr; }
  .hw-right { grid-template-columns: repeat(3, 1fr); height: 180px; }
  .hw-figure img { height: 100%; }
}

@media (max-width: 600px) {
  .hw-right { grid-template-columns: 1fr; height: auto; }
  .hw-figure img { height: 220px; }
  .hw-figure figcaption { margin-top: 8px; }
}

/* Torso section: text left, single image on right */
.torso-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: start;
  margin: 1rem 0 2rem;
}
.torso-right { display: flex; align-items: flex-start; justify-content: center; }
.torso-figure { width: 100%; max-width: 420px; }
.torso-figure img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; display: block; }
.torso-figure figcaption { text-align: center; margin-top: 8px; font-size: 0.92rem; background: rgba(255,255,255,0.86); padding: 4px 8px; border-radius: 6px; color: #000; }

@media (max-width: 900px) {
  .torso-section { grid-template-columns: 1fr; }
  .torso-right { margin-top: 0.5rem; }
  .torso-figure img { height: 260px; }
}

@media (max-width: 600px) {
  .torso-figure img { height: 200px; }
}

/* Locomotion layout */
.locomotion-section { margin: 1.25rem 0 2rem; }
.locomotion-row {
  display: grid;
  grid-template-columns: 1fr 600px;
  gap: 1rem;
  align-items: start;
  margin-bottom: 1rem;
}
.locomotion-schematic img { width: 100%; height: auto; display: block; border-radius: 8px; }
.locomotion-text p { margin: 0 0 0.9rem; text-align: justify; }

.locomotion-videos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  align-items: stretch;
}
.loc-video { display: flex; flex-direction: column; gap: 8px; }
.loc-video video { width: 100%; height: 300px; object-fit: contain; display: block; border-radius: 8px; }
.loc-video figcaption { text-align: center; font-size: 0.92rem; background: rgba(255,255,255,0.86); padding: 4px 8px; border-radius: 6px; }

@media (max-width: 900px) {
  .locomotion-row { grid-template-columns: 1fr; }
  .locomotion-videos { grid-template-columns: repeat(3, 1fr); }
  .loc-video video { height: 160px; }
}

@media (max-width: 600px) {
  .locomotion-videos { grid-template-columns: 1fr; }
  .loc-video video { height: 200px; }
}

/* Paragraph justification for Cosmo project sections */
.bg-left p,
.hw-left p,
.torso-left p {
  text-align: justify;
  text-justify: inter-word;
  -webkit-hyphens: auto;
  -ms-hyphens: auto;
  hyphens: auto;
}

/* Specification table */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
  font-size: 0.8rem;
}

.spec-table th,
.spec-table td {
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  width: 42%;
  font-weight: 600;
  color: #000;
}

.spec-table tr {
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.spec-table tr:last-child {
  border-bottom: none;
}

.youtube-container{
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  aspect-ratio: 4 / 3;   /* ✅ 4:3 width:height */
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.12);
}

.youtube-container iframe{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}


/* Mobile: keep 4:3 */
@media (max-width: 600px) {
  .youtube-container {
    padding-bottom: 75%;
  }
}