/* About (CV) page styles — hero, stat cards, course grid, awards timeline.
   Loaded only by _tabs/about.md.
   Consumes Chirpy theme variables plus the --ml-* accent palette defined in
   assets/css/jekyll-theme-chirpy.scss, so everything adapts to dark/light. */

/* ===== Hero ===== */
.cv-hero {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1.75rem;
  padding: 2rem 2.25rem;
  margin: 0.75rem 0 2.25rem;
  border-radius: 18px;
  background: var(--ml-hero-bg, var(--card-bg));
  border: 1px solid var(--ml-card-border, var(--main-border-color));
  overflow: hidden;
}

/* moon glow in the corner */
.cv-hero::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -50px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--ml-accent-rgb), 0.30) 0%, transparent 70%);
  pointer-events: none;
}

.cv-hero-avatar {
  width: 104px;
  height: 104px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 0 0 3px rgba(var(--ml-accent-rgb), 0.55),
    0 8px 20px rgba(var(--ml-accent-rgb), 0.25);
}

.cv-hero-body { min-width: 0; }

.cv-hero-name {
  margin: 0 0 0.1rem;
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1.25;
  background: var(--ml-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  width: fit-content;
}

.cv-hero-tagline {
  margin: 0 0 0.85rem;
  font-style: italic;
  color: var(--text-muted-color);
}

.cv-hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.cv-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.28rem 0.8rem;
  border-radius: 2rem;
  background: rgba(var(--ml-accent-rgb), 0.10);
  border: 1px solid rgba(var(--ml-accent-rgb), 0.20);
  color: var(--text-color);
}

.cv-chip i { color: var(--ml-accent); }

/* ===== Pill buttons (hero links + contact) ===== */
.cv-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.content a.cv-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 1rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid var(--btn-border-color);
  background: var(--button-bg);
  color: var(--text-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease,
    border-color 0.2s ease, color 0.2s ease;
}

.content a.cv-btn:hover {
  text-decoration: none;
  border-color: var(--ml-accent);
  color: var(--ml-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(var(--ml-accent-rgb), 0.22);
}

.content a.cv-btn-primary {
  background: var(--ml-gradient);
  border-color: transparent;
  color: var(--ml-on-accent, #fff);
}

.content a.cv-btn-primary:hover {
  color: var(--ml-on-accent, #fff);
  filter: brightness(1.08);
}

/* ===== PS platform stat cards ===== */
.cv-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 1rem;
  margin: 1.25rem 0 0.5rem;
}

.content a.cv-stat-card {
  position: relative;
  display: block;
  padding: 1.1rem 1.25rem 1.1rem 1.4rem;
  border-radius: 14px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.content a.cv-stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: var(--ml-gradient);
}

.content a.cv-stat-card:hover {
  text-decoration: none;
  transform: translateY(-3px);
  border-color: rgba(var(--ml-accent-rgb), 0.4);
  box-shadow: 0 8px 22px rgba(var(--ml-accent-rgb), 0.16);
}

.cv-stat-platform {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--text-muted-color);
}

.cv-stat-platform i { color: var(--ml-accent); }

.cv-stat-tier {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 0.3rem 0 0.1rem;
  color: var(--heading-color);
}

#codeforces-tier { text-transform: capitalize; }

.cv-stat-meta {
  font-size: 0.85rem;
  color: var(--text-muted-color);
}

.cv-stat-note {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.55rem;
  font-size: 0.78rem;
  color: var(--text-muted-color);
  opacity: 0.9;
}

/* ===== Academics: course color levels ===== */
.breadth   { background-color: #2f9e63; color: #fff; }
.business  { background-color: #9a5b2d; color: #fff; }
.science   { background-color: #2f86d4; color: #fff; }
.cs1-level { background-color: #d9b8df; color: #3c1140; }
.cs2-level { background-color: #b475bd; color: #fff; }
.cs3-level { background-color: #8e4a98; color: #fff; }
.cs4-level { background-color: #5c1b65; color: #fff; }
.cs5-level { background-color: #3a0c42; color: #fff; }
.mas1-level { background-color: #bcd9f2; color: #0c2d4d; }
.mas2-level { background-color: #659ec7; color: #fff; }
.mas3-level { background-color: #2b5c8a; color: #fff; }
.mas4-level { background-color: #14416b; color: #fff; }
.mas5-level { background-color: #0a2845; color: #fff; }

.breadth, .business, .science,
.cs1-level, .cs2-level, .cs3-level, .cs4-level, .cs5-level,
.mas1-level, .mas2-level, .mas3-level, .mas4-level, .mas5-level {
  display: block;
  width: 96px;
  padding: 7px 4px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-align: center;
  margin: 0 auto 7px;
  border-radius: 9px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
  box-sizing: border-box;
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.tooltip-container:hover,
.tooltip-container:focus {
  transform: translateY(-2px);
  filter: brightness(1.08);
  box-shadow: 0 4px 10px rgba(var(--ml-accent-rgb), 0.25);
}

/* placeholder for semesters with no courses yet */
.course-empty {
  display: block;
  width: 96px;
  padding: 7px 4px;
  margin: 0 auto;
  font-size: 0.8rem;
  text-align: center;
  color: var(--text-muted-color);
  border: 1px dashed var(--main-border-color);
  border-radius: 9px;
  opacity: 0.8;
}

/* ===== Table layout ===== */
.course-table { margin: 0 auto; border-collapse: separate; border-spacing: 0; }

.course-table th.semester-header {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--text-muted-color);
  padding: 0 6px 10px;
  text-align: center;
  width: 108px;
}

.course-table td { vertical-align: top; text-align: center; padding: 0 6px; }

/* Scrolls horizontally when the table is wider than the content column.
   Extra top room so desktop hover tooltips aren't clipped by the scroll box. */
.course-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-top: 56px;
}

/* ===== Tooltips (desktop: reveal on hover / keyboard focus / tap) ===== */
.tooltip-container { position: relative; display: block; text-align: center; cursor: default; outline: none; }
.tooltip-container:focus-visible { outline: 2px solid var(--ml-accent); outline-offset: 2px; border-radius: 9px; }

.tooltip-content {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  z-index: 100;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%);
  width: 150px;
  background-color: var(--card-bg);
  color: var(--text-color);
  text-align: center;
  border-radius: 8px;
  border: 1px solid rgba(var(--ml-accent-rgb), 0.35);
  padding: 9px 10px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  transition: opacity 0.25s;
  line-height: 1.4;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  pointer-events: none;
}

.tooltip-content::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: var(--card-bg) transparent transparent transparent;
}

.tooltip-container:hover .tooltip-content,
.tooltip-container:focus .tooltip-content,
.tooltip-container:focus-within .tooltip-content {
  visibility: visible;
  opacity: 1;
}

/* ===== Mobile: scroll horizontally and show names inline (no fragile hover) ===== */
@media (max-width: 820px) {
  .course-table-wrap {
    padding-top: 8px;
  }

  .tooltip-container:hover,
  .tooltip-container:focus {
    transform: none;
  }

  .tooltip-content {
    position: static;
    visibility: visible;
    opacity: 1;
    transform: none;
    width: auto;
    background: transparent;
    color: inherit;
    border: 0;
    box-shadow: none;
    padding: 2px 0 0;
    font-size: 10px;
    line-height: 1.2;
  }

  .tooltip-content strong { font-weight: normal; }
  .tooltip-content::after { display: none; }
}

/* ===== Legend ===== */
.legend {
  display: flex;
  gap: 0.5rem 1.1rem;
  justify-content: center;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted-color);
}

.legend-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.dot-cs      { background-color: #8e4a98; }
.dot-mas     { background-color: #2b5c8a; }
.dot-science { background-color: #2f86d4; }
.dot-breadth { background-color: #2f9e63; }

/* ===== Awards: timeline ===== */
.cv-timeline {
  position: relative;
  margin: 1.5rem 0 1rem;
  padding-left: 1.75rem;
}

.cv-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 1px;
  background: linear-gradient(180deg, var(--ml-accent), var(--ml-accent-2));
  opacity: 0.4;
}

.cv-tl-item {
  position: relative;
  padding-bottom: 1.4rem;
}

.cv-tl-item:last-child { padding-bottom: 0.25rem; }

.cv-tl-item::before {
  content: "";
  position: absolute;
  left: -1.75rem;
  top: 0.42rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ml-gradient);
  box-shadow: 0 0 0 3px rgba(var(--ml-accent-rgb), 0.22);
}

.cv-tl-year {
  margin: 0 0 0.7rem;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--heading-color);
}

.cv-award {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.6rem 1rem;
  margin-bottom: 0.55rem;
  border-radius: 10px;
  background: var(--card-bg);
  border: 1px solid var(--main-border-color);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.cv-award:hover {
  transform: translateX(4px);
  border-color: rgba(var(--ml-accent-rgb), 0.38);
  box-shadow: 0 3px 12px rgba(var(--ml-accent-rgb), 0.12);
}

.cv-award > i {
  color: var(--ml-accent);
  font-size: 1rem;
  width: 1.25rem;
  text-align: center;
  flex-shrink: 0;
}

.cv-award > i.fa-medal { color: #d4a017; }

.cv-award-name {
  flex: 1;
  font-size: 0.92rem;
  min-width: 0;
}

.cv-award-result {
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--heading-color);
  white-space: nowrap;
}

.cv-award-ongoing {
  border-style: dashed;
  color: var(--text-muted-color);
}

/* ===== Awards: shimmering gold medal ===== */
.gold-shine {
  font-weight: bold;
  background: linear-gradient(90deg, #b8860b, #ffd700, #b8860b);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shine 2.2s linear infinite;
}

@keyframes shine {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* ===== Responsive hero ===== */
@media (max-width: 576px) {
  .cv-hero {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.1rem;
    padding: 1.5rem 1.4rem;
  }

  .cv-hero-avatar { width: 84px; height: 84px; }
  .cv-hero-name { font-size: 1.6rem; }
}