/**
 * dataset.css
 * ─────────────────────────────────────────────────────────────
 * PURPOSE: Styles for the "Training Dataset" section —
 *          the AI-themed "About Me" replacement.
 *          Data is presented like model metadata / JSON schema.
 *
 * LOGIC: A two-column layout — left shows the "data card"
 *        with animated avatar, right shows key-value metadata
 *        rows that animate in on scroll.
 *
 * CUSTOMIZATION: Update the meta rows in index.html.
 *                Change icon colors via --color-primary.
 * ─────────────────────────────────────────────────────────────
 */

#dataset { background: var(--color-bg); }

/* ── DATASET GRID ──────────────────────────────────────────── */
.dataset__grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: var(--space-12);
  align-items: start;
}

/* ── LEFT — PROFILE CARD ───────────────────────────────────── */
.dataset__profile-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  position: sticky;
  top: calc(var(--navbar-h) + var(--space-8));
}

/* Card top gradient header */
.profile-card__header {
  height: 80px;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.profile-card__header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* Avatar ring */
.profile-card__avatar-wrap {
  display: flex;
  justify-content: center;
  margin-top: -40px;
  position: relative;
  z-index: 1;
}

.profile-card__avatar {
  width: 88px; height: 88px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: 4px solid var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.4);
  position: relative;
  animation: glow-pulse 4s ease-in-out infinite;
}

/* Orbiting ring */
.profile-card__avatar::after {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px dashed rgba(139, 92, 246, 0.4);
  animation: spin 12s linear infinite;
}

.profile-card__body {
  padding: var(--space-5);
  text-align: center;
}

.profile-card__name {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.profile-card__role {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.profile-card__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-success);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}

.profile-card__status::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

/* Quick stats row */
.profile-card__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.profile-stat {
  text-align: center;
}

.profile-stat__value {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-primary);
  line-height: 1.2;
}

.profile-stat__label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── RIGHT — METADATA PANEL ────────────────────────────────── */
.dataset__meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* Schema block title */
.dataset__schema-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.dataset__schema-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* Individual meta row — key: value */
.meta-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: var(--space-4);
  align-items: start;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

.meta-row:last-child { border-bottom: none; }

.meta-row:hover {
  background: rgba(139, 92, 246, 0.03);
  border-radius: var(--radius-md);
  padding-inline: var(--space-2);
  margin-inline: calc(-1 * var(--space-2));
}

.meta-key {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.meta-key .key-icon {
  font-size: 14px;
  opacity: 0.7;
}

.meta-value {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: var(--weight-medium);
  line-height: 1.6;
}

.meta-value--accent {
  color: var(--color-primary);
  font-family: var(--font-mono);
}

/* Tag chips inside meta value */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-primary);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  letter-spacing: 0.03em;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: rgba(139, 92, 246, 0.2);
  transform: translateY(-1px);
}

/* Internship timeline mini */
.internship-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.internship-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.internship-item:hover {
  border-color: rgba(139, 92, 246, 0.4);
  transform: translateX(4px);
}

.internship-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
  margin-top: 5px;
  box-shadow: 0 0 8px rgba(139, 92, 246, 0.5);
}

.internship-info {
  flex: 1;
}

.internship-company {
  font-weight: var(--weight-semibold);
  color: var(--color-text);
  font-size: var(--text-sm);
}

.internship-role {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
}

.internship-period {
  font-size: 11px;
  color: var(--color-primary);
  font-family: var(--font-mono);
  white-space: nowrap;
}