/* =============================================================================
   DESIGN TOKENS
   ============================================================================= */
:root {
  /* Forest dark palette — deep green-black, like being under a canopy */
  --bg:           #0b0f0d;
  --bg-raised:    #111710;
  --bg-card:      #161d18;
  --bg-card-hover:#1b2420;
  --border:       rgba(180,210,180,0.07);
  --border-bright:rgba(180,210,180,0.14);

  --text-primary:  #eeeee4;
  --text-secondary:#96a093;
  --text-muted:    #566057;

  --accent:        #C4965A;
  --accent-bright: #D4AA72;
  --accent-dim:    rgba(196,150,90,0.15);
  --accent-glow:   rgba(196,150,90,0.07);

  /* Nature greens — used for live status, highlights */
  --green:         #5a9e72;
  --green-dim:     rgba(90,158,114,0.12);
  --green-glow:    rgba(90,158,114,0.06);

  --warm:          #C9A96E;
  --warm-dim:      rgba(201,169,110,0.12);

  /* Typography */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Layout */
  --max-width: 1100px;
  --content-width: 740px;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out: cubic-bezier(0.0, 0.0, 0.2, 1);
}

/* =============================================================================
   RESET & BASE
   ============================================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: rgba(180,210,180,0.15); border-radius: 3px; }

/* Selection */
::selection { background: var(--green-dim); color: var(--green); }

/* =============================================================================
   TYPOGRAPHY
   ============================================================================= */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.1rem; }

p { color: var(--text-secondary); }

code, pre {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

code {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--accent-bright);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: var(--space-lg);
  border-radius: 8px;
  overflow-x: auto;
  margin: var(--space-xl) 0;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text-primary);
}

blockquote {
  border-left: 3px solid var(--accent);
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-xl) 0;
  background: var(--accent-glow);
  border-radius: 0 8px 8px 0;
}

blockquote p { color: var(--text-primary); font-style: italic; }

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-2xl) 0;
}

/* =============================================================================
   LAYOUT UTILITIES
   ============================================================================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

/* =============================================================================
   NAVIGATION
   ============================================================================= */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11,15,13,0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: border-color 0.3s var(--ease);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.nav-logo__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.nav-logo__dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: 6px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link:hover,
.nav-link--active {
  color: var(--text-primary);
  background: var(--bg-raised);
}

.nav-link--active {
  color: var(--accent-bright);
}

.nav-link--github {
  border: 1px solid var(--border);
  margin-left: var(--space-sm);
}

.nav-link--github:hover {
  border-color: var(--border-bright);
  background: var(--bg-card);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}

/* =============================================================================
   HERO — HOME PAGE
   ============================================================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px var(--space-xl) var(--space-3xl);
  position: relative;
  overflow: hidden;
}

/* Photo background — add your image to assets/images/hero.jpg to activate */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: var(--bg);
  background-image: url('/assets/images/hero.jpg');
  background-size: cover;
  background-position: center 30%;
}

/* Dark overlay so text stays readable over any photo */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(11,15,13,0.92) 0%,
    rgba(11,15,13,0.80) 50%,
    rgba(11,15,13,0.70) 100%
  );
}

/* Subtle vignette at bottom to blend into page */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 180px;
  background: linear-gradient(to bottom, transparent, var(--bg));
  z-index: 1;
  pointer-events: none;
}

/* Ambient glow — visible when no photo, subtle accent when photo present */
.hero-glow {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(90,158,114,0.05) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 70%, rgba(201,169,110,0.04) 0%, transparent 70%);
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.hero-eyebrow::after {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--accent);
  opacity: 0.5;
}

.hero-title {
  font-size: clamp(2.8rem, 7vw, 5rem);
  line-height: 1.08;
  margin-bottom: var(--space-xl);
  max-width: 800px;
}

.hero-title em {
  font-style: italic;
  color: var(--accent-bright);
}

.hero-bio {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: var(--space-2xl);
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
}

.hero-status__dot {
  width: 7px;
  height: 7px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2.5s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 rgba(90,158,114,0.4); }
  50% { opacity: 0.7; transform: scale(0.85); box-shadow: 0 0 0 4px rgba(90,158,114,0); }
}

.hero-ctas {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Two-column hero layout */
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 440px;
  gap: var(--space-2xl);
  align-items: start;
  padding-top: var(--space-lg);
}

.hero-left {}

/* =============================================================================
   HERO PANEL — MAP + STATS
   ============================================================================= */
.hero-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Trip map */
.trip-map-card {
  background: rgba(13,22,16,0.7);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.trip-map-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.trip-map-label__dot {
  width: 5px;
  height: 5px;
  background: var(--green);
  border-radius: 50%;
  flex-shrink: 0;
}

.trip-map-svg {
  display: block;
  width: 100%;
  height: auto;
}

/* Stats card */
.trip-stats-card {
  background: rgba(13,22,16,0.7);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-md) var(--space-lg);
  backdrop-filter: blur(8px);
}

.trip-stats-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.trip-stats-card__title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.trip-stats-card__dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2.5s ease-in-out infinite;
}

.trip-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.trip-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.trip-stat--wide {
  grid-column: 1 / -1;
}

.trip-stat--location {
  grid-column: 1 / -1;
}

.trip-stat__value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--text-primary);
  line-height: 1;
}

.trip-stat__value--location {
  font-size: 1.1rem;
}

.trip-stat__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.trip-stats-card__footer {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: var(--space-sm);
}

.trip-stats-card__footer a {
  color: var(--accent);
  transition: color 0.2s;
}

.trip-stats-card__footer a:hover { color: var(--accent-bright); }

/* =============================================================================
   BUTTONS
   ============================================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font-body);
  transition: all 0.2s var(--ease);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--accent-bright);
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-bright);
}
.btn--secondary:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
  transform: translateY(-1px);
}

/* =============================================================================
   SECTION HEADERS
   ============================================================================= */
.section {
  padding: var(--space-3xl) var(--space-xl);
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  display: block;
}

.section-title { margin-bottom: var(--space-md); }
.section-desc { max-width: 560px; }

/* =============================================================================
   PROJECT CARDS
   ============================================================================= */
.projects-grid {
  display: grid;
  gap: var(--space-lg);
}

.project-header {
  display: grid;
  grid-template-columns: 140px 1fr;
  grid-template-rows: auto auto;
  gap: var(--space-md) var(--space-lg);
  align-items: start;
  margin-bottom: var(--space-md);
}

.project-header .post-card__thumb {
  grid-row: 1 / 3;
}

.project-header__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.project-header--no-thumb {
  grid-template-columns: 1fr;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-xl);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), transparent);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.project-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.project-card:hover::before { opacity: 1; }

.project-card--featured {
  grid-column: 1 / -1;
}

.project-status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  white-space: nowrap;
  flex-shrink: 0;
}

.project-status--live {
  background: var(--green-dim);
  color: var(--green);
  border: 1px solid rgba(90,158,114,0.25);
}

.project-status--complete {
  background: var(--accent-dim);
  color: var(--accent-bright);
  border: 1px solid rgba(107,140,174,0.25);
}

.project-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.project-tagline {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.project-desc {
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: var(--space-lg);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

.project-links {
  display: flex;
  gap: var(--space-md);
}

.project-link {
  font-size: 0.85rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transition: color 0.2s var(--ease);
}

.project-link:hover { color: var(--accent-bright); }

/* =============================================================================
   BLOG LIST
   ============================================================================= */
.post-list {
  display: grid;
  gap: var(--space-lg);
}

.post-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
  align-items: start;
  overflow: hidden;
}

/* When a thumbnail is present, insert it as a third column between date and content */
.post-card--has-thumb {
  grid-template-columns: auto 140px 1fr;
}

.post-card:hover {
  border-color: var(--border-bright);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.post-card__thumb {
  width: 140px;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
  display: block;
  transition: opacity 0.25s var(--ease);
}

.post-card:hover .post-card__thumb {
  opacity: 0.85;
}

.post-card__date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  white-space: nowrap;
  padding-top: var(--space-xs);
}

.post-card__category {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  margin-bottom: var(--space-sm);
}

.post-category--technical { color: var(--accent); }
.post-category--travel { color: var(--warm); }

.post-card__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
  transition: color 0.2s var(--ease);
}

.post-card:hover .post-card__title { color: var(--accent-bright); }

.post-card__excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* =============================================================================
   BLOG POST
   ============================================================================= */

/* Post header image — add `image: /assets/images/yourfile.jpg` to post frontmatter */
.post-hero-image {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: var(--space-2xl);
  border: 1px solid var(--border);
  display: block;
}

.post-wrapper {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: calc(64px + var(--space-3xl)) var(--space-xl) var(--space-3xl);
}

.post-header { margin-bottom: var(--space-2xl); }

.post-meta-top {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.post-category {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.post-date, .post-read-time {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.post-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin-bottom: var(--space-md);
}

.post-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  font-style: italic;
  font-family: var(--font-display);
}

/* Post body */
.post-content h2 {
  font-size: 1.6rem;
  margin: var(--space-2xl) 0 var(--space-md);
  padding-top: var(--space-md);
}

.post-content h3 {
  font-size: 1.2rem;
  margin: var(--space-xl) 0 var(--space-md);
}

.post-content p { margin-bottom: var(--space-lg); }

.post-content ul, .post-content ol {
  padding-left: var(--space-xl);
  margin-bottom: var(--space-lg);
  color: var(--text-secondary);
}

.post-content li { margin-bottom: var(--space-sm); }

.post-content a {
  color: var(--accent-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.post-content a:hover { color: var(--text-primary); }

.post-content img {
  border-radius: 8px;
  margin: var(--space-xl) 0 var(--space-sm);
  border: 1px solid var(--border);
}

.post-content figcaption {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--space-sm);
}

.post-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.project-page-links__heading {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.project-page-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.project-page-nav {
  display: block;
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
}

.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.post-nav__link {
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.post-nav__link:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

.post-nav__link--next { text-align: right; }

.post-nav__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: var(--space-xs);
}

.post-nav__title {
  font-size: 0.9rem;
  color: var(--text-primary);
  display: block;
}

/* =============================================================================
   ABOUT PAGE
   ============================================================================= */
.about-hero {
  padding: calc(64px + var(--space-3xl)) var(--space-xl) var(--space-3xl);
}

.about-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-3xl);
  align-items: start;
}

.about-content h1 { margin-bottom: var(--space-lg); }
.about-content p { margin-bottom: var(--space-lg); }

.about-content a {
  color: var(--accent-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.about-sidebar { position: sticky; top: 88px; }

/* Portrait photo — add assets/images/portrait.jpg to activate */
.portrait-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: var(--space-lg);
}

.portrait-card__photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  display: block;
  background: var(--bg-raised);
}

/* Placeholder shown when no photo yet */
.portrait-card__placeholder {
  width: 100%;
  aspect-ratio: 4 / 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-align: center;
  gap: var(--space-sm);
  padding: var(--space-xl);
}

.portrait-card__placeholder-icon {
  font-size: 2rem;
  opacity: 0.3;
}

.portrait-card__caption {
  padding: var(--space-md) var(--space-lg);
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
}

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.sidebar-card__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
  display: block;
}

.sidebar-card__title {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.sidebar-card p { font-size: 0.9rem; margin-bottom: var(--space-md); }

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.about-sections {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl) var(--space-3xl);
}

.about-section {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border);
}

.about-section:first-child { border-top: none; }

.about-section__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--warm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  display: block;
}

.about-section h2 { margin-bottom: var(--space-lg); font-size: 1.6rem; }
.about-section p { margin-bottom: var(--space-md); max-width: 660px; }

/* Timeline */
.timeline {
  position: relative;
  padding-left: var(--space-xl);
  margin-top: var(--space-lg);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-xl);
  padding-left: var(--space-lg);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-lg) - 4px);
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border-bright);
}

.timeline-item--highlight::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.timeline-item__year {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: var(--space-xs);
}

.timeline-item__label {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* =============================================================================
   CV PAGE
   ============================================================================= */
.cv-wrapper {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: calc(64px + var(--space-3xl)) var(--space-xl) var(--space-3xl);
}

.cv-section {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--border);
}

.cv-section:last-child { border-bottom: none; }

.cv-section__title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xl);
}

.cv-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.cv-entry__title { font-size: 1rem; margin-bottom: var(--space-xs); }
.cv-entry__sub { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: var(--space-sm); }
.cv-entry__period { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted); white-space: nowrap; }
.cv-entry__desc { font-size: 0.9rem; grid-column: 1 / -1; }

/* =============================================================================
   PAGE WRAPPERS (About, Projects, Blog)
   ============================================================================= */
.page-hero {
  padding: calc(64px + var(--space-3xl)) var(--space-xl) var(--space-2xl);
}

.page-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-hero__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  display: block;
}

.page-hero__title { margin-bottom: var(--space-md); }
.page-hero__desc { max-width: 540px; }

.page-body {
  padding: 0 var(--space-xl) var(--space-3xl);
}

.page-body-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* =============================================================================
   HOME SECTIONS
   ============================================================================= */
.home-section {
  padding: var(--space-3xl) var(--space-xl);
  border-top: 1px solid var(--border);
}

.home-section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.home-section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
  gap: var(--space-lg);
}

.home-section-header__text .section-label { margin-bottom: var(--space-sm); }

/* =============================================================================
   FOOTER
   ============================================================================= */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-2xl) var(--space-xl);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color 0.2s var(--ease);
}

.footer-links a:hover { color: var(--accent-bright); }

.footer-right { text-align: right; }
.footer-meta { font-size: 0.8rem; color: var(--text-muted); }
.footer-meta:first-child { margin-bottom: var(--space-xs); }

/* =============================================================================
   RESPONSIVE
   ============================================================================= */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-sidebar { position: static; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-links { display: none; }
  .footer-right { grid-column: 2; }
  /* Hero collapses to single column — panel stacks below text */
  .hero-inner {
    grid-template-columns: 1fr;
    align-items: stretch;
  }
  .hero-panel { display: flex; } /* visible, stacked below hero-left */
  .trip-map-card svg { height: 220px; } /* slightly shorter on tablet */
}

@media (max-width: 680px) {
  :root {
    --space-xl: 1.5rem;
    --space-2xl: 2.5rem;
    --space-3xl: 4rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-md);
    gap: var(--space-xs);

  }

  .project-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .project-header .post-card__thumb {
    width: 100%;
    aspect-ratio: 16 / 7;
  }

  .project-header__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .nav-links.is-open { display: flex; }
  .nav-link--github { margin-left: 0; }
  .nav-toggle { display: flex; }

  .post-card { grid-template-columns: 1fr; }
  .post-card--has-thumb { grid-template-columns: 1fr; }
  .post-card__thumb { width: 100%; aspect-ratio: 16 / 7; }
  .post-card__date { writing-mode: horizontal-tb; transform: none; }
  .post-nav { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; text-align: left; }
  .footer-right { text-align: left; grid-column: 1; }
  .cv-entry { grid-template-columns: 1fr; }

  /* Stats card grid goes 2-col on small screens */
  .trip-stats-grid { grid-template-columns: 1fr 1fr; }
  .trip-stat--wide { grid-column: 1; }
  .trip-stat--location { grid-column: 1 / -1; }
}

/* =============================================================================
   CV ABSTRACT (dissertation dropdown)
   ============================================================================= */
.cv-abstract {
  margin-top: var(--space-md);
  grid-column: 1 / -1;
}

.cv-abstract summary {
  cursor: pointer;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: color 0.2s var(--ease);
  user-select: none;
}

.cv-abstract summary::-webkit-details-marker { display: none; }

.cv-abstract summary::before {
  content: '▸';
  font-size: 0.65rem;
  transition: transform 0.2s var(--ease);
  display: inline-block;
}

.cv-abstract[open] summary::before {
  transform: rotate(90deg);
}

.cv-abstract summary:hover { color: var(--accent-bright); }

.cv-abstract__body {
  margin-top: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  border-left: 2px solid var(--accent);
}

.cv-abstract__body p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 0;
}

.cv-abstract__download {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  border: 1px solid var(--border-bright);
  padding: 0.35rem 0.85rem;
  border-radius: 6px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.cv-abstract__download:hover {
  color: var(--accent-bright);
  border-color: var(--accent);
  background: var(--accent-glow);
}