/* ===================================================
   Emanuele Agosta – Portfolio
   Font: Hanken Grotesk · Apple HIG aesthetics
   =================================================== */

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --font: 'Hanken Grotesk', -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
  --bg: #ffffff;
  --text-primary: #1d1d1f;
  --text-secondary: #86868b;
  --text-tertiary: #aeaeb2;
  --surface: #f5f5f7;
  --surface-hover: #ebebed;
  --border: rgba(0, 0, 0, 0.06);
  --border-pill: rgba(0, 0, 0, 0.08);
  --pill-bg: rgba(0, 0, 0, 0.04);
  --pill-active-bg: #1d1d1f;
  --pill-active-text: #ffffff;
  --nav-blur: saturate(180%) blur(20px);
  --nav-bg: rgba(255, 255, 255, 0.72);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 100px;
  --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --spacing-xs: 6px;
  --spacing-sm: 10px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --content-max-width: 1320px;
  --nav-h-padding: 24px;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 14px var(--nav-h-padding);
  backdrop-filter: var(--nav-blur);
  -webkit-backdrop-filter: var(--nav-blur);
  background: var(--nav-bg);
}

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

/* Center group for filter pills in navbar */
.nav-center {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border: 1px solid var(--border-pill);
  transition: background 0.25s var(--ease), transform 0.2s var(--ease);
}

.nav-pill:hover {
  background: rgba(255, 255, 255, 0.8);
  transform: scale(1.02);
}

.nav-pill:active {
  transform: scale(0.98);
}

.nav-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  text-decoration: none;
  white-space: nowrap;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

/* Nav text links with underline hover */
.nav-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: -0.01em;
  position: relative;
  transition: color 0.2s var(--ease);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--text-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* About toggle active state */
.nav-about.active {
  background: var(--pill-active-bg);
  color: var(--pill-active-text);
  border-color: var(--pill-active-bg);
}

/* ============================================
   MAIN LAYOUT — alignment with nav
   ============================================ */
.main-layout {
  padding: 108px var(--nav-h-padding) var(--spacing-3xl);
}

.archive-column {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

/* ============================================
   FILTER BAR
   ============================================ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--text-secondary);
  background: var(--pill-bg);
  border: 1px solid var(--border-pill);
  transition: all 0.22s var(--ease);
  white-space: nowrap;
}

.filter-pill:hover {
  color: var(--text-primary);
  background: var(--surface-hover);
  border-color: rgba(0, 0, 0, 0.12);
}

.filter-pill.active {
  color: var(--pill-active-text);
  background: var(--pill-active-bg);
  border-color: var(--pill-active-bg);
}

/* ============================================
   PROJECT GRID
   ============================================ */
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.project-grid.grid-4col {
  grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   PROJECT CARD
   ============================================ */
.project-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  cursor: pointer;
}

.project-card:hover .project-thumbnail {
  transform: scale(1.01);
}

.project-card:active .project-thumbnail {
  transform: scale(0.99);
}

/* --- Thumbnail --- */
.project-thumbnail {
  background: var(--surface);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: transform 0.3s var(--ease);
  position: relative;
}

.thumbnail-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Wide card (16:9) — Product Design */
.wide-card .project-thumbnail {
  aspect-ratio: 16 / 9;
}

/* Compact card (3:2) — Work Experience */
.compact-card .project-thumbnail {
  aspect-ratio: 3 / 2;
}

/* Small card (4:3) — Articles */
.small-card .project-thumbnail {
  aspect-ratio: 4 / 3;
}

/* --- Card Category Pill (Articles only) --- */
.card-pill {
  position: absolute;
  top: var(--spacing-sm);
  left: var(--spacing-sm);
  z-index: 2;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  letter-spacing: -0.005em;
  line-height: 1.3;
  max-width: calc(100% - var(--spacing-sm) * 2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Articles Container (display: contents for grid participation) --- */
#articles-container {
  display: contents;
}

/* --- Article Skeleton Loading --- */
@keyframes skeleton-pulse {

  0%,
  100% {
    opacity: 0.4;
  }

  50% {
    opacity: 0.15;
  }
}

.article-skeleton {
  pointer-events: none;
}

.skeleton-thumbnail {
  background: var(--surface);
  border-radius: var(--radius-xl);
}

.skeleton-title {
  height: 14px;
  width: 70%;
  background: var(--surface);
  border-radius: 6px;
  animation: skeleton-pulse 1.4s ease-in-out infinite;
}

.skeleton-subtitle {
  height: 11px;
  width: 40%;
  margin-top: 6px;
  background: var(--surface);
  border-radius: 6px;
  animation: skeleton-pulse 1.4s ease-in-out infinite;
  animation-delay: 0.15s;
}

.skeleton-thumbnail {
  animation: skeleton-pulse 1.4s ease-in-out infinite;
  animation-delay: 0.05s;
}

/* --- Articles Fallback --- */
.articles-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-xl);
  background: var(--surface);
  transition: color 0.2s ease, background 0.2s ease;
  grid-column: 1 / -1;
}

.articles-fallback:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.06);
}

/* --- Project Info --- */
.project-info {
  padding: var(--spacing-sm) 4px var(--spacing-md);
}

.project-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.project-subtitle {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-top: 2px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============================================
   ABOUT OVERLAY PANEL
   ============================================ */
.about-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease);
}

.about-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.about-panel {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 210;
  width: 600px;
  height: 100vh;
  background: var(--bg);
  border-left: 1px solid var(--border);
  transform: translateX(100%);
  transition: transform 0.4s var(--ease);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.about-panel.open {
  transform: translateX(0);
}

.about-close-btn {
  position: absolute;
  top: 16px;
  left: 16px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-secondary);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
  z-index: 220;
}

.about-close-btn:hover {
  background: var(--surface-hover);
  color: var(--text-primary);
}

.about-panel-inner {
  padding: var(--spacing-3xl) var(--spacing-xl) var(--spacing-2xl);
  display: flex;
  flex-direction: column;
}

.about-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.about-header-text {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.about-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 0;
}

.about-short-bio {
  font-size: 0.9375rem;
  color: var(--text-primary);
  line-height: 1.5;
  margin: 0;
}

.about-profile-img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
}

.about-profile-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Narrative */
.about-narrative {
  margin-top: var(--spacing-xl);
}

.about-narrative p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-primary);
  letter-spacing: -0.005em;
}

.about-narrative p+p {
  margin-top: var(--spacing-md);
}

/* Meta rows */
.about-meta {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
  padding-top: var(--spacing-md);
}

.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border);
}

.meta-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  flex-shrink: 0;
  width: 80px;
}

.meta-value {
  font-size: 0.8125rem;
  color: var(--text-primary);
  text-align: right;
  line-height: 1.4;
}

/* ============================================
   DETAIL / CASE-STUDY PAGE
   ============================================ */
.detail-page {
  padding: 88px var(--nav-h-padding) var(--spacing-3xl);
}

.detail-inner {
  max-width: 820px;
  margin: 0 auto;
}

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  position: relative;
  transition: color 0.2s var(--ease);
}

.back-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--text-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease);
}

.back-link:hover {
  color: var(--text-primary);
}

.back-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Hero */
.detail-hero {
  margin-bottom: var(--spacing-xl);
}

.detail-hero-img {
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.detail-hero-img img {
  width: 100%;
  height: auto;
  display: block;
}

.detail-header {
  margin-bottom: var(--spacing-3xl);
}

.detail-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: var(--spacing-xs);
}

.detail-subtitle {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Body sections */
.detail-section {
  margin-bottom: var(--spacing-3xl);
}

.detail-section-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--spacing-md);
}

.detail-section p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #444;
  letter-spacing: -0.005em;
}

.detail-section p+p {
  margin-top: var(--spacing-md);
}

/* Supporting images */
.detail-img {
  margin: var(--spacing-2xl) 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.detail-img img {
  width: 100%;
  height: auto;
  display: block;
}

.detail-img-caption {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
  padding: 0 4px;
}

.detail-img-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
}

.detail-img-grid .detail-img {
  margin: 0;
}

/* ============================================
   PRODUCT CASE-STUDY EXTENSIONS
   ============================================ */

/* Inline text link (App Store Link →) */
.inline-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-top: var(--spacing-md);
  position: relative;
  transition: color 0.2s var(--ease);
}

.inline-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--text-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease);
}

.inline-link:hover {
  color: var(--text-primary);
}

.inline-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Section headline — large display text */
.section-headline {
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: var(--spacing-md);
}

/* Lead section — slightly larger intro */
.detail-section--lead {
  margin-top: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

/* --- Mockup row (3 side-by-side individual mockups) --- */
.mockup-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

.mockup-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.4s var(--ease);
}

.mockup-frame img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-lg);
  transition: transform 0.5s var(--ease);
  will-change: transform;
}

.mockup-frame:hover {
  transform: translateY(-2px);
}

.mockup-frame:hover img {
  transform: scale(1.03);
}

/* --- Feature blocks (boxed) --- */
.features-label {
  margin-bottom: var(--spacing-md);
}

.feature-block {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.feature-block:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.feature-text {
  margin-bottom: var(--spacing-lg);
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

.feature-block p {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #444;
  letter-spacing: -0.005em;
}

/* Feature image inside boxed block - Full bleed at bottom */
.feature-img {
  margin: var(--spacing-lg) calc(var(--spacing-xl) * -1) calc(var(--spacing-xl) * -1) calc(var(--spacing-xl) * -1);
  width: calc(100% + var(--spacing-xl) * 2);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  overflow: hidden;
}

.feature-img img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s var(--ease), filter 0.5s var(--ease);
  will-change: transform;
}

.feature-block:hover .feature-img img {
  transform: scale(1.025);
}

/* Feature pair — two blocks side-by-side */
.feature-pair {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.feature-block--half {
  margin-bottom: 0;
}

/* Feature pair image — bottom-aligned, phone emerging from bottom */
.feature-img--zoomed {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  overflow: hidden;
  padding-top: 10px;
  margin-top: -10px;
  padding-bottom: 0;
}

.feature-img--zoomed img {
  width: 65%;
  height: auto;
  display: block;
  object-fit: contain;
  margin-bottom: -40%;
  transition: transform 0.5s var(--ease);
  will-change: transform;
}

.feature-block:hover .feature-img--zoomed img {
  transform: scale(1.025);
}

/* --- Subtle image hover animation (all detail images) --- */
.detail-img {
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.detail-img img {
  transition: transform 0.5s var(--ease);
  will-change: transform;
}

.detail-img:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.detail-img:hover img {
  transform: scale(1.015);
}

/* --- Version comparison (single image) --- */
.version-single {
  text-align: center;
  margin: var(--spacing-2xl) 0;
}

.version-img {
  background: var(--surface);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.version-img img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s var(--ease);
  will-change: transform;
}

.version-img:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.version-img:hover img {
  transform: scale(1.015);
}

.version-caption {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
}

/* --- Use Cases section (Sunlitt-inspired) --- */
.use-cases-section {
  margin: var(--spacing-3xl) 0;
}

.use-cases-heading {
  text-align: left;
  margin-bottom: var(--spacing-md);
}

.use-cases-intro {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #444;
  letter-spacing: -0.005em;
  text-align: left;
  margin: 0 0 var(--spacing-xl);
}

.use-case-cards {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.use-case-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg) var(--spacing-xl);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.use-case-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.use-case-icon {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  line-height: 1;
}

.use-case-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.use-case-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #444;
}

.use-cases-note {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #444;
  margin-top: var(--spacing-lg);
  text-align: left;
}

/* --- Closing CTA --- */
.closing-cta {
  text-align: center;
  margin: var(--spacing-3xl) 0 var(--spacing-xl);
  padding: var(--spacing-3xl) 0;
  border-top: 1px solid var(--border);
}

.closing-headline {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

/* Closing app icon */
.closing-app-icon {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  margin-bottom: var(--spacing-lg);
}

.closing-body {
  font-size: 1rem;
  color: #444;
  margin-bottom: var(--spacing-xl);
}

.app-store-badge {
  display: inline-block;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.app-store-badge img {
  height: 44px;
  width: auto;
  border-radius: var(--radius-md);
}

.app-store-badge:hover {
  transform: scale(1.04);
  opacity: 0.85;
}

.app-store-badge:active {
  transform: scale(0.97);
}

/* --- Scroll fade-in animation (Apple TV-style) --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 960px) {
  .main-layout {
    padding-top: 130px;
  }

  .about-panel {
    width: 450px;
  }

  /* Medium screens: 4→2 columns for articles and talks */
  .project-grid.grid-4col {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Wrap navbar earlier to prevent crowding: name+About on top, pills below */
  .nav-inner {
    flex-wrap: wrap;
  }

  .nav-center {
    order: 3;
    width: 100%;
    margin-top: 10px;
    gap: var(--spacing-xs);
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .nav-center::-webkit-scrollbar {
    display: none;
  }

  .nav-center .filter-pill {
    font-size: 0.75rem;
    padding: 6px 14px;
  }
}

@media (max-width: 600px) {
  :root {
    --nav-h-padding: 16px;
  }

  .main-layout,
  .detail-page {
    padding: 130px var(--nav-h-padding) var(--spacing-2xl);
  }

  .navbar {
    padding: 12px var(--nav-h-padding);
  }

  .project-grid {
    grid-template-columns: 1fr !important;
    gap: var(--spacing-md);
  }

  /* Center and constrain article cards on mobile (Apple Newsroom style) */
  .small-card {
    max-width: 380px;
    margin: 0 auto;
    width: 100%;
  }

  .mockup-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    /* Reset margins/paddings from previous flex layout */
    margin-left: 0;
    margin-right: 0;
    padding-left: 0;
    padding-right: 0;
    padding-bottom: 0;
    overflow-x: visible;
  }

  .mockup-frame {
    flex: unset;
    scroll-snap-align: unset;
  }

  .feature-pair {
    grid-template-columns: 1fr;
  }

  .feature-img--zoomed {
    height: auto;
  }

  .filter-pill {
    white-space: nowrap;
    flex-shrink: 0;
  }

  .nav-right {
    gap: var(--spacing-md);
  }

  .nav-link {
    display: none;
  }

  .about-panel {
    width: 100%;
  }

  .detail-title {
    font-size: 1.5rem;
  }

  .section-headline,
  .closing-headline {
    font-size: 1.25rem;
  }

  .feature-title {
    font-size: 1rem;
  }

  .use-cases-intro {
    text-align: left;
  }

  .use-case-card {
    padding: var(--spacing-md) var(--spacing-lg);
  }

  .detail-img-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   CARD LOADING ANIMATION
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.project-card {
  animation: fadeInUp 0.5s var(--ease) both;
}

.project-card:nth-child(1) {
  animation-delay: 0.05s;
}

.project-card:nth-child(2) {
  animation-delay: 0.1s;
}

.project-card:nth-child(3) {
  animation-delay: 0.15s;
}

.project-card:nth-child(4) {
  animation-delay: 0.2s;
}

.project-card:nth-child(5) {
  animation-delay: 0.25s;
}

.project-card:nth-child(6) {
  animation-delay: 0.3s;
}

.project-card:nth-child(7) {
  animation-delay: 0.35s;
}

.project-card:nth-child(8) {
  animation-delay: 0.4s;
}

.project-card:nth-child(9) {
  animation-delay: 0.45s;
}

.project-card:nth-child(10) {
  animation-delay: 0.5s;
}

.project-card:nth-child(11) {
  animation-delay: 0.55s;
}

.project-card:nth-child(12) {
  animation-delay: 0.6s;
}

.project-card:nth-child(13) {
  animation-delay: 0.65s;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-lg) var(--nav-h-padding);
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  letter-spacing: -0.005em;
}

.footer-links {
  display: flex;
  gap: var(--spacing-md);
}

.footer-links a {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.footer-links a:hover {
  color: var(--text-primary);
}

@media (max-width: 600px) {
  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* ============================================
   WORK EXPERIENCE
   ============================================ */
.work-experience {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
  padding-top: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.work-experience-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-section {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
  padding-top: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-row {
  display: flex;
  justify-content: flex-start;
  gap: 8px;
  align-items: center;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 8px 0;
  transition: opacity 0.4s ease;
}

.contact-row:hover {
  opacity: 0.7;
}

.contact-arrow, .work-arrow {
  font-size: 1.1rem;
  color: var(--text-tertiary);
  font-weight: 400;
}

.work-experience-header {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--spacing-md);
}

.work-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
  color: inherit;
  transition: opacity 0.4s ease;
}

.work-row:hover {
  opacity: 0.7;
}

.work-logo {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  background: white; /* In case the logo has transparent background */
}

.work-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.work-info {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: space-between;
}

.work-company {
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-primary);
  flex-basis: 42%;
}

.work-role {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  flex-basis: 35%;
}

.work-date {
  color: var(--text-tertiary);
  font-size: 0.8125rem;
  text-align: right;
  flex-basis: 23%;
}

@media (max-width: 600px) {
  .work-info {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }
  .work-company, .work-role, .work-date {
    flex-basis: auto;
    text-align: left;
  }
}