/* =========================================================
   Portfolio — Rohan Batra (@rohanbatrain)
   HPE enterprise design language — portfolio components.
   Extends assets/css/styles.css (HPE tokens + shared classes).
   Load order: styles.css THEN portfolio.css.

   Motif: the "HPE element" = a thin, SHARP-cornered green
   rectangle. It appears as a 3px green accent bar on the
   showcase cards (featured projects, case studies) and as a
   green spine on the bio card. Green is a signature accent,
   never a wash — whitespace, clear hierarchy, and restrained
   green over decoration. Cards keep their --radius corners.
   ========================================================= */

/* ---------- Hero additions ---------- */
.hero__tagline {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1.2rem, 3.4vw, 1.95rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 760px;
  margin: 0.5rem auto 0;
  text-wrap: balance;
}

/* ---------- About / Bio ---------- */
.bio {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: clamp(1.8rem, 4.5vw, 3.25rem);
  align-items: start;
  max-width: 1040px;
  margin-inline: auto;
}
.bio__main p { color: var(--text-muted); }
.bio__main p:last-child { margin-bottom: 0; }

.bio__card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem 1.7rem;
  box-shadow: var(--shadow);
}
/* HPE "element": a small sharp green rectangle on the left spine */
.bio__card::before {
  content: "";
  position: absolute;
  top: 1.5rem;
  bottom: 1.5rem;
  left: 0;
  width: 3px;
  background: var(--green);
}
.bio__facts { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.bio__facts li {
  display: grid;
  gap: 0.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.bio__facts li:last-child { padding-bottom: 0; border-bottom: 0; }
.bio__facts span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.bio__facts strong { color: var(--text); font-weight: 600; font-size: 0.98rem; }

/* ---------- Skills ---------- */
.skillset {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2.2vw, 1.5rem);
}
.skillset__group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem 1.6rem 1.7rem;
  box-shadow: var(--shadow);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.skillset__group:hover {
  transform: translateY(-4px);
  border-color: var(--green);
  box-shadow: var(--shadow-green);
}
.skillset__title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.05rem;
  margin: 0 0 1.15rem;
}
/* Icon tile — a soft green-tinted square, sharp-ish (radius-sm) */
.skillset__ic {
  flex: none;
  width: 42px; height: 42px;
  display: grid; place-items: center;
  font-size: 1.2rem;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--green) 12%, var(--surface-2));
  border: 1px solid color-mix(in srgb, var(--green) 22%, var(--border));
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.skillset__group:hover .skillset__ic {
  border-color: color-mix(in srgb, var(--green) 40%, var(--border));
  background: color-mix(in srgb, var(--green) 16%, var(--surface-2));
}
.skillset__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.skillset__list li {
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.4em 0.85em;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.skillset__group:hover .skillset__list li {
  border-color: color-mix(in srgb, var(--green) 20%, var(--border));
}

/* ---------- Featured projects ---------- */
.projects {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2.2vw, 1.5rem);
}
.project-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: var(--shadow);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--green);
  box-shadow: var(--shadow-green);
}
.project-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.8rem;
}
.project-card__title {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  overflow-wrap: anywhere;
}
.project-card__star {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--amber);
  white-space: nowrap;
}
.project-card__desc { color: var(--text-muted); font-size: 0.94rem; margin: 0; }
.project-card .tags { margin: 0.1rem 0 0; }
.project-card__foot { margin-top: auto; padding-top: 0.7rem; }
.project-card__link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap 0.2s var(--ease), color 0.2s var(--ease);
}
.project-card__link:hover {
  gap: 0.55rem;
  color: var(--green-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Featured card — UPES-ECS × HPE flagship: green "element" bar,
   faint green tint + green shadow to read as brand/elevated. */
.project-card--featured {
  border-color: color-mix(in srgb, var(--green) 38%, var(--border));
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--green) 7%, transparent), transparent 50%),
    var(--surface);
  box-shadow: var(--shadow-green);
}
/* 3px sharp green rectangle, inset from the rounded corners */
.project-card--featured::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--radius);
  right: var(--radius);
  height: 3px;
  background: var(--green);
}
.project-card--featured:hover { border-color: var(--green); }

.projects__more { text-align: center; margin: 2.6rem 0 0; }

/* ---------- UPES-ECS × HPE highlight band ---------- */
.band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--green) 30%, var(--border));
  background:
    radial-gradient(130% 150% at 0% 0%, color-mix(in srgb, var(--green) 13%, transparent), transparent 55%),
    var(--surface);
  box-shadow: var(--shadow-green);
  padding: clamp(2.2rem, 5.5vw, 3.5rem);
  text-align: center;
}
/* Full-bleed green accent stripe across the top of the panel */
.band::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--green);
}
.band__glow {
  position: absolute; z-index: 0;
  top: -45%; right: -8%;
  width: 440px; height: 340px;
  background: radial-gradient(circle, var(--green-glow), transparent 65%);
  filter: blur(34px);
  opacity: 0.55;
  pointer-events: none;
}
.band__content { position: relative; z-index: 1; max-width: 680px; margin-inline: auto; }
.band__content h2 { margin-bottom: 0.7rem; }
.band__content p { color: var(--text-muted); margin-bottom: 1.7rem; }

/* ---------- Reliability case studies ---------- */
.cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2.2vw, 1.5rem);
}
.case {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem 1.6rem 1.7rem;
  box-shadow: var(--shadow);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
/* HPE "element": a sharp 3px green rectangle inset along the top */
.case::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--radius);
  right: var(--radius);
  height: 3px;
  background: var(--green);
}
.case:hover {
  transform: translateY(-4px);
  border-color: var(--green);
  box-shadow: var(--shadow-green);
}
.case__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
}
.case__title {
  font-size: 1.06rem;
  line-height: 1.3;
  margin: 0.55rem 0 1.15rem;
  text-wrap: balance;
}
.case__rows { margin: 0; display: grid; gap: 0.9rem; }
.case__rows > div { display: grid; gap: 0.2rem; }
.case__rows dt {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.case__rows dd { margin: 0; color: var(--text-muted); font-size: 0.9rem; line-height: 1.55; }
/* Lesson row — quietly emphasized: green key, solid value */
.case__lesson dt { color: var(--green); }
.case__lesson dd { color: var(--text); font-weight: 500; }

/* ---------- HPE visit gallery ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(0.75rem, 1.6vw, 1.1rem);
}
.gallery__item {
  display: block;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface-2);
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.gallery__item:hover {
  transform: translateY(-3px);
  border-color: var(--green);
  box-shadow: var(--shadow-green);
}
.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease);
}
.gallery__item:hover img { transform: scale(1.05); }
.gallery__note { text-align: center; color: var(--text-dim); font-size: 0.85rem; margin-top: 1.2rem; }
@media (max-width: 760px) { .gallery { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 440px) { .gallery { grid-template-columns: 1fr; } }

/* ---------- Portfolio-scoped tweaks ---------- */
#experience .exp { max-width: 880px; margin-inline: auto; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .skillset, .projects, .cases { grid-template-columns: repeat(2, 1fr); }
  .bio { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .skillset, .projects, .cases { grid-template-columns: 1fr; }
}