/*
 * About page — Midnight Studio (extends home.css via .page-home on body)
 * Scope: .page-about sections only
 */

/* —— Lead bio (replaces page hero) —— */
.page-about .about-bio--lead {
  position: relative;
  padding-top: calc(var(--nav-h) + 2.25rem);
  padding-bottom: 2.5rem;
  overflow: hidden;
  background: var(--bg);
}

.page-about .about-bio--lead::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 75% 60% at 14% 8%, color-mix(in srgb, var(--accent-soft) 75%, transparent), transparent 62%),
    radial-gradient(ellipse 55% 45% at 88% 18%, color-mix(in srgb, var(--accent-purple) 9%, transparent), transparent 55%);
  pointer-events: none;
}

.page-about .about-bio--lead .hero-bg__orb--accent {
  top: 4%;
  right: auto;
  left: 6%;
}

.page-about .about-bio--lead .hero-bg__grid {
  mask-image: radial-gradient(ellipse 85% 75% at 42% 38%, #000 15%, transparent 70%);
}

.page-about .about-bio--lead .hero-bg__dots {
  mask-image: radial-gradient(ellipse 82% 72% at 40% 38%, #000 8%, transparent 68%);
}

.page-about .about-bio--lead .hero-bg__orb--warm {
  top: 32%;
  right: 12%;
}

.page-about .about-bio--lead::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: min(140px, 18vh);
  z-index: 0;
  background: linear-gradient(
    to top,
    var(--bg) 0%,
    color-mix(in srgb, var(--bg) 85%, transparent) 40%,
    transparent 100%
  );
  pointer-events: none;
}

.page-about .about-bio--lead .hero-bg__aurora {
  mask-image: radial-gradient(ellipse 90% 80% at 38% 35%, #000 10%, transparent 75%);
}

.page-about .about-bio--lead .about-bio__headline .text-gradient {
  text-shadow: 0 0 36px color-mix(in srgb, var(--accent) 30%, transparent);
}

.page-about .about-bio--lead .container {
  position: relative;
  z-index: 1;
}

.page-about .about-bio--lead .about-bio__grid {
  align-items: center;
}

/* —— Bio —— */
.page-about .about-bio {
  position: relative;
}

.page-about .about-bio__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.page-about .about-bio__frame {
  width: 100%;
  max-width: 360px;
  margin-inline: auto;
}

.page-about .about-bio__media {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  box-shadow:
    var(--shadow-md),
    0 0 0 1px color-mix(in srgb, var(--accent) 10%, transparent),
    var(--shadow-glow);
}

.page-about .about-bio__media::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 2;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.85;
  pointer-events: none;
}

.page-about .about-bio__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  border-radius: inherit;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.06),
    inset 0 -30% 40% rgba(11, 13, 18, 0.3);
  background: linear-gradient(
    180deg,
    rgba(11, 13, 18, 0.1) 0%,
    transparent 30%,
    transparent 70%,
    rgba(11, 13, 18, 0.15) 100%
  );
}

.page-about .about-bio__status {
  animation: about-status-pulse 2.8s ease-in-out infinite;
}

@keyframes about-status-pulse {
  0%, 100% { box-shadow: var(--shadow-sm); }
  50% { box-shadow: var(--shadow-sm), 0 0 20px color-mix(in srgb, var(--accent-warm) 25%, transparent); }
}

.page-about .about-bio__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  display: block;
}

.page-about .about-bio__copy {
  max-width: 54ch;
}

.page-about .about-bio__headline {
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0.35rem 0 0.5rem;
}

.page-about .about-bio__tagline {
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

/* Terminal card */
.page-about .about-terminal {
  margin-bottom: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--bg-card) 92%, #000);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.page-about .about-terminal__bar {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.page-about .about-terminal__bar > span:not(.about-terminal__title) {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-strong);
}

.page-about .about-terminal__bar > span:nth-child(1) {
  background: #e06c75;
}

.page-about .about-terminal__bar > span:nth-child(2) {
  background: #e5c07b;
}

.page-about .about-terminal__bar > span:nth-child(3) {
  background: #98c379;
}

.page-about .about-terminal__title {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
}

.page-about .about-terminal__body {
  padding: 0.75rem 1rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.65;
}

.page-about .about-terminal__body p {
  margin: 0;
}

.page-about .about-terminal__prompt {
  color: var(--accent);
  margin-right: 0.35rem;
}

.page-about .about-terminal__out {
  color: var(--text-muted);
  padding-left: 1.1rem;
  margin-bottom: 0.35rem !important;
}

/* Stack chips */
.page-about .about-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
}

.page-about .about-stack__chip {
  display: inline-block;
  padding: 0.28rem 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .about-stack__chip:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  color: var(--text);
}

.page-about .about-stack__chip--hot {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--border));
  box-shadow: 0 0 12px var(--accent-soft);
}

/* Metrics band */
.page-about .about-metrics {
  padding: 0 0 2.5rem;
  position: relative;
}

.page-about .about-metrics__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-metric {
  padding: 1rem 0.85rem;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm), var(--surface-inset);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-metric:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 25%, var(--border-strong));
}

.page-about .about-metric strong {
  display: block;
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 0.2rem;
}

.page-about .about-metric span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  line-height: 1.35;
}

.page-about .about-metric--accent strong {
  color: var(--accent);
}

.page-about .about-bio__text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0 0 1rem;
}

.page-about .about-bio__text strong {
  color: var(--text);
  font-weight: 600;
}

.page-about .about-highlights {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1.5rem 0 1.75rem;
}

.page-about .about-highlight {
  padding: 0.85rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm), var(--surface-inset);
}

.page-about .about-highlight__label {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.35rem;
}

.page-about .about-highlight__label i {
  color: var(--accent);
  font-size: 0.85rem;
}

.page-about .about-highlight p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.page-about .about-highlight__meta {
  display: block;
  margin-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
}

/* —— Timeline —— */
.page-about .timeline-section {
  padding: 3rem 0;
  background: var(--bg-elevated);
  position: relative;
}

.page-about .timeline-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(90%, 720px);
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 50%, transparent), transparent);
  pointer-events: none;
}

.page-about .timeline-head {
  text-align: center;
  margin-bottom: 2.5rem;
}

.page-about .timeline-head .section-title {
  margin-bottom: 0.5rem;
}

.page-about .timeline-container {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  padding: 1rem 0 0.5rem;
  counter-reset: timeline-step;
}

.page-about .timeline-container::after {
  content: "";
  position: absolute;
  width: 2px;
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -1px;
  background: linear-gradient(
    180deg,
    transparent,
    var(--border-strong) 12%,
    var(--border-strong) 88%,
    transparent
  );
}

.page-about .timeline-item {
  position: relative;
  width: 50%;
  padding: 0.5rem 2rem 1.75rem;
  box-sizing: border-box;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

.page-about .timeline-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.page-about .timeline-item.left {
  left: 0;
}

.page-about .timeline-item.right {
  left: 50%;
}

.page-about .timeline-dot {
  position: absolute;
  top: 1.35rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent);
  z-index: 1;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s;
}

.page-about .timeline-item.left .timeline-dot {
  right: -7px;
}

.page-about .timeline-item.right .timeline-dot {
  left: -7px;
}

.page-about .timeline-item:hover .timeline-dot {
  background: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
  transform: scale(1.15);
}

.page-about .timeline-content {
  position: relative;
  padding: 1.15rem 1.25rem 1.15rem 1.35rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm), var(--surface-inset);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
  counter-increment: timeline-step;
}

.page-about .timeline-content::after {
  content: counter(timeline-step, decimal-leading-zero);
  position: absolute;
  top: 0.85rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: color-mix(in srgb, var(--accent) 55%, var(--text-dim));
  opacity: 0.75;
  pointer-events: none;
}

.page-about .timeline-content:hover {
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border-strong));
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.page-about .timeline-content::before {
  content: "";
  position: absolute;
  top: 1.25rem;
  width: 0;
  height: 0;
  border-style: solid;
}

.page-about .timeline-item.left .timeline-content::before {
  right: -8px;
  border-width: 8px 0 8px 8px;
  border-color: transparent transparent transparent var(--bg-card);
}

.page-about .timeline-item.right .timeline-content::before {
  left: -8px;
  border-width: 8px 8px 8px 0;
  border-color: transparent var(--bg-card) transparent transparent;
}

.page-about .timeline-content h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.page-about .timeline-date {
  display: inline-block;
  margin-bottom: 0.45rem;
  padding: 0.2rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 4px;
}

.page-about .timeline-location {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.page-about .timeline-location i {
  color: var(--accent);
  font-size: 0.7rem;
}

.page-about .timeline-org {
  margin: 0 0 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-purple);
}

.page-about .timeline-item:nth-child(2) .timeline-org {
  color: var(--accent);
}

.page-about .timeline-item:nth-child(3) .timeline-org {
  color: var(--accent-green);
}

.page-about .timeline-desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.page-about .text-purple { color: var(--accent-purple); }
.page-about .text-green { color: var(--accent-green); }

@media (max-width: 900px) {
  .page-about .about-bio .grid-2 {
    gap: 2rem;
  }

  .page-about .about-bio__visual {
    order: -1;
  }

  .page-about .about-metrics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .page-about .about-bio--lead {
    padding-top: calc(var(--nav-h) + 1.35rem);
    padding-bottom: 1.75rem;
  }

  .page-about .about-metrics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-bio__frame {
    max-width: min(280px, 78vw);
  }

  .page-about .about-highlights {
    grid-template-columns: 1fr;
  }

  .page-about .timeline-section {
    padding: 2rem 0;
  }

  .page-about .timeline-head {
    margin-bottom: 1.75rem;
  }
}

@media (max-width: 768px) {
  .page-about .timeline-container::after {
    left: 20px;
    margin-left: 0;
  }

  .page-about .timeline-item,
  .page-about .timeline-item.left,
  .page-about .timeline-item.right {
    width: 100%;
    left: 0;
    padding: 0 0 1.25rem 3rem;
  }

  .page-about .timeline-item.left .timeline-dot,
  .page-about .timeline-item.right .timeline-dot {
    left: 13px;
    right: auto;
  }

  .page-about .timeline-item.left .timeline-content::before,
  .page-about .timeline-item.right .timeline-content::before {
    left: -8px;
    right: auto;
    border-width: 8px 8px 8px 0;
    border-color: transparent var(--bg-card) transparent transparent;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .timeline-item {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-about .about-bio__status {
    animation: none;
  }
}