/* ═══════════════════════════════════════════════════════════════
   PORTFOLIO — Design System & Global Styles
   Classic · Minimalist · Premium · Dark
   ═══════════════════════════════════════════════════════════════ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter:wght@300;400;500;600&display=swap');

/* ── Custom Properties ── */
:root {
  /* Colors */
--bg-primary:    #faf6f0;
--bg-secondary:  #f5efe6;
--bg-tertiary:   #efe6d8;
--bg-card:       #fffdf9;
--bg-card-hover: #f7f0e6;

--text-primary:  #2b2420;
--text-secondary:#5c5148;
--text-muted:    #080808;
--text-accent:   #8a6d4a;

--border-color:  #e3d9c8;
--border-light:  #d8cbb5;

--accent:        #a9713f;
--accent-dim:    rgba(169, 113, 63, 0.08);

  /* Typography */
  --font-heading: 'Instrument Serif', Georgia, 'Times New Roman', serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Type Scale */
  --text-xs:   0.75rem;
  --text-sm:   0.85rem;
  --text-base: 1rem;
  --text-md:   1.125rem;
  --text-lg:   1.25rem;
  --text-xl:   1.5rem;
  --text-2xl:  2rem;
  --text-3xl:  2.75rem;
  --text-4xl:  3.5rem;
  --text-5xl:  4.5rem;
  --text-6xl:  6rem;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  0.75rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  3rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --max-width:  1200px;
  --nav-height: 72px;

  /* Transitions */
  --ease:      cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --duration:  0.4s;
  --duration-fast: 0.2s;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease);
}

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

ul, ol {
  list-style: none;
}

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

/* ── Layout ── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-5xl) 0;
}

.section--sm {
  padding: var(--space-4xl) 0;
}

/* ── Typography ── */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.heading-display {
  font-size: var(--text-6xl);
  font-family: var(--font-heading);
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.heading-1 {
  font-size: var(--text-4xl);
  line-height: 1.1;
}

.heading-2 {
  font-size: var(--text-3xl);
  line-height: 1.15;
}

.heading-3 {
  font-size: var(--text-2xl);
}

.heading-4 {
  font-size: var(--text-xl);
}

.text-body {
  font-size: var(--text-md);
  color: var(--text-secondary);
  line-height: 1.8;
}

.text-small {
  font-size: var(--text-sm);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
}

.text-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

/* ── Dividers ── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--border-color);
  border: none;
}

.divider--accent {
  width: 48px;
  height: 1px;
  background: var(--accent);
}

/* ═══════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgb(250, 246, 240);
  /* color: #fffdf9; */
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration) var(--ease),
              background var(--duration) var(--ease),
              transform var(--duration) var(--ease);

}

.nav.scrolled {
  border-bottom-color: var(--border-color);
  background: rgb(255, 238, 212);
  /* background: rgb(255, 238, 212); */

}

.nav.nav-hidden {
  transform: translateY(-100%);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  
}

.nav__logo {
  position: relative;
  z-index: 1001;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--text-primary);
  letter-spacing: -0.02em;
  transition: opacity var(--duration-fast) var(--ease);
  background: rgb(255, 238, 212);
  padding: 5px 24px;
  border-radius: 50px;
}

.nav__logo:hover {
  opacity: 0.7;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  
}

.nav__link {
  font-size: var(--text-sm);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--duration-fast) var(--ease);
  /* background: rgb(10, 10, 10); */

}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--duration) var(--ease-out);
}

.nav__link:hover,
.nav__link.active {
  color: var(--text-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.nav__toggle {
  position: relative;
  z-index: 1001;
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: transparent;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
}

.nav__toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all var(--duration-fast) var(--ease);
  
}

.nav__toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ═══════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
}

.hero__content {
  width: 100%;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.hero__label .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

.hero__title {
  margin-bottom: var(--space-xl);
}

.hero__title em {
  font-style: italic;
  color: var(--text-accent);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: var(--space-3xl);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--accent);
  transition: gap var(--duration) var(--ease),
              color var(--duration-fast) var(--ease);
}

.hero__cta:hover {
  gap: var(--space-md);
}

.hero__cta svg {
  width: 16px;
  height: 16px;
  transition: transform var(--duration) var(--ease);
}

.hero__cta:hover svg {
  transform: translateX(4px);
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: float 3s ease-in-out infinite;
}

.hero__scroll-line {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
}

/* ═══════════════════════════════════════════════════
   SECTION HEADERS
   ═══════════════════════════════════════════════════ */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.section-header__label {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
}

.section-header__count {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--text-muted);
}

.section-header__link {
  font-size: var(--text-sm);
  color: var(--text-accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: gap var(--duration) var(--ease);
}

.section-header__link:hover {
  gap: var(--space-sm);
}

.section-header__link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--duration) var(--ease);
}

.section-header__link:hover svg {
  transform: translateX(3px);
}

/* ═══════════════════════════════════════════════════
   PROJECT CARDS
   ═══════════════════════════════════════════════════ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.project-card {
  display: block;
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 2px 4px rgba(0, 0, 0, 0.04);
  transition: border-color var(--duration) var(--ease),
              transform var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
}

.project-card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.03),
    0 4px 8px rgba(0, 0, 0, 0.06),
    0 12px 24px rgba(0, 0, 0, 0.10),
    0 24px 48px rgba(0, 0, 0, 0.14);
}


.project-card__image {
  width: 100%;
  /* aspect-ratio: 16 / 10; */
  overflow: hidden;
  background: var(--bg-tertiary);
}

.project-card__image img {
  /* width: 100%;
  height: 100%; */
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.project-card:hover .project-card__image img {
  transform: scale(1.04);
}

.project-card__content {
  padding: var(--space-lg) var(--space-xl) var(--space-xl);
}

.project-card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  color: var(--text-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.project-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  transition: color var(--duration-fast) var(--ease);
}

.project-card:hover .project-card__title {
  color: var(--text-accent);
}

.project-card__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.7;
}

.project-card__arrow {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(200, 185, 154, 0.1);
  border: 1px solid rgba(200, 185, 154, 0.15);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--duration) var(--ease),
              transform var(--duration) var(--ease);
}

.project-card:hover .project-card__arrow {
  opacity: 1;
  transform: translateY(0);
}

.project-card__arrow svg {
  width: 16px;
  height: 16px;
  color: var(--text-accent);
}

/* ═══════════════════════════════════════════════════
   ARTICLES
   ═══════════════════════════════════════════════════ */
.articles-list {
  display: flex;
  flex-direction: column;
}

.article-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2xl);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border-color);
  transition: padding-left var(--duration) var(--ease);
}

.article-item:first-child {
  padding-top: 0;
}

.article-item:hover {
  padding-left: var(--space-md);
}

.article-item__number {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--text-muted);
  opacity: 0.7;
  flex-shrink: 0;
  min-width: 48px;
  padding-top: 2px;
}

.article-item__content {
  flex: 1;
}

.article-item__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
  transition: color var(--duration-fast) var(--ease);
}

.article-item:hover .article-item__title {
  color: var(--text-accent);
}

.article-item__excerpt {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.8;
}

.article-item__meta {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: var(--space-sm);
  opacity: 0.6;
}

/* ═══════════════════════════════════════════════════
   ABOUT
   ═══════════════════════════════════════════════════ */
.about {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-4xl);
  align-items: start;
}

.about__heading {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-2xl));
}

.about__text p {
  font-size: var(--text-md);
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-lg);
}

.about__text p:last-child {
  margin-bottom: 0;
}

.about__links {
  display: flex;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.about__link {
  font-size: var(--text-sm);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: color var(--duration-fast) var(--ease);
}

.about__link:hover {
  color: var(--text-accent);
}

.about__link svg {
  width: 14px;
  height: 14px;
}

/* ═══════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════ */
.footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border-color);
}

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

.footer__copy {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.footer__links {
  display: flex;
  gap: var(--space-xl);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--text-muted);
  transition: color var(--duration-fast) var(--ease);
}

.footer__link:hover {
  color: var(--text-accent);
}

/* ═══════════════════════════════════════════════════
   SCROLL ANIMATIONS
   ═══════════════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out),
              transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ═══════════════════════════════════════════════════
   KEYFRAMES
   ═══════════════════════════════════════════════════ */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.3; }
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(-6px); }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s var(--ease-out) forwards;
}

/* ═══════════════════════════════════════════════════
   PAGE HEADER (for sub-pages)
   ═══════════════════════════════════════════════════ */
.page-header {
  padding-top: calc(var(--nav-height) + var(--space-4xl));
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid var(--border-color);
}

.page-header__title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.page-header__subtitle {
  font-size: var(--text-md);
  color: var(--text-muted);
  max-width: 560px;
}

/* ═══════════════════════════════════════════════════
   ARTICLES PAGE GRID
   ═══════════════════════════════════════════════════ */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.article-card {
  display: block;
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 2px 4px rgba(0, 0, 0, 0.04);
  transition: border-color var(--duration) var(--ease),
              transform var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
}

.article-card:hover {
  border-color: var(--border-light);
  transform: translateY(-3px);
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.03),
    0 3px 6px rgba(0, 0, 0, 0.05),
    0 8px 16px rgba(0, 0, 0, 0.08),
    0 16px 32px rgba(0, 0, 0, 0.10);
}
.article-card__category {
  font-size: var(--text-xs);
  color: var(--text-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.article-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
  transition: color var(--duration-fast) var(--ease);
}

.article-card:hover .article-card__title {
  color: var(--text-accent);
}

.article-card__excerpt {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.8;
}

.article-card__date {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-color);
  opacity: 0.5;
}

/* ═══════════════════════════════════════════════════
   RESPONSIVE
   Premium layouts for every screen size
   ═══════════════════════════════════════════════════ */

/* ── Tablet (landscape & portrait) ── */
@media (max-width: 1024px) {
  :root {
    --text-6xl: 4.25rem;
    --text-5xl: 3.25rem;
    --text-4xl: 2.5rem;
    --text-3xl: 2rem;
    --text-2xl: 1.625rem;
    --space-5xl: 6.5rem;
    --space-4xl: 4.5rem;
  }

  .container {
    padding: 0 var(--space-2xl);
  }

  /* Hero — slightly tighter but still grand */
  .hero {
    min-height: 92vh;
  }

  .hero__subtitle {
    max-width: 480px;
  }

  /* Projects — stacked with elegant spacing */
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-radius: 10px;
  }

  .project-card__image {
    aspect-ratio: 4 / 3;
    border-radius: 9px 0 0 9px;
    overflow: hidden;
  }

  .project-card__content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl) var(--space-2xl);
  }

  .project-card__desc {
    font-size: var(--text-base);
    line-height: 1.75;
  }

  .project-card__arrow {
    top: var(--space-md);
    right: var(--space-md);
  }

  /* About — single column with refined spacing */
  .about {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .about__heading {
    position: static;
  }

  .about__heading .heading-2 {
    font-size: var(--text-3xl);
  }

  /* Articles — keep 2 cols but tighter gap */
  .articles-grid {
    gap: var(--space-md);
  }

  .article-card {
    padding: var(--space-lg) var(--space-xl);
  }

  /* Section headers — keep inline */
  .section-header {
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-md);
  }

  /* Page header for sub-pages */
  .page-header {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    padding-bottom: var(--space-2xl);
  }
}

/* ── Mobile ── */
@media (max-width: 768px) {
  :root {
    --text-6xl: 2.75rem;
    --text-5xl: 2.25rem;
    --text-4xl: 2rem;
    --text-3xl: 1.625rem;
    --text-2xl: 1.375rem;
    --text-xl:  1.2rem;
    --text-lg:  1.1rem;
    --space-5xl: 4.5rem;
    --space-4xl: 3rem;
    --space-3xl: 2.5rem;
    --nav-height: 64px;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  /* ─ Navigation ─ */
  .nav {
    height: var(--nav-height);
  }

  .nav__inner {
    padding: 0 var(--space-lg);
  }

  .nav__logo {
    font-size: var(--text-lg);
  }

  .nav__toggle {
    display: flex;
  }

  .nav__links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    background: var(--bg-primary);
    z-index: 999;
    padding-top: 270px;
  }

  .nav__links.open {
    display: flex;
  }

  .nav__links li {
    width: 100%;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    /* opacity: 0; */
    transform: translateY(12px);
    animation: mobileNavIn 0.5s var(--ease-out) forwards;
  }

  .nav__links.open li:nth-child(1) { animation-delay: 0.06s; }
  .nav__links.open li:nth-child(2) { animation-delay: 0.12s; }
  .nav__links.open li:nth-child(3) { animation-delay: 0.18s; }
  .nav__links.open li:nth-child(4) { animation-delay: 0.24s; }

  .nav__links li:first-child {
    border-top: 1px solid var(--border-color);
  }

  .nav__links .nav__link {
    display: block;
    font-size: var(--text-2xl);
    font-family: var(--font-heading);
    font-weight: 400;
    text-transform: none;
    letter-spacing: -0.01em;
    padding: var(--space-xl) var(--space-lg);
    color: var(--text-primary);
  }

  .nav__links .nav__link::after {
    display: none;
  }

  .nav__links .nav__link:hover,
  .nav__links .nav__link.active {
    color: var(--text-accent);
    background: var(--accent-dim);
  }

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

  /* ─ Hero ─ */
  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    padding-bottom: var(--space-4xl);
  }

  .heading-display {
    letter-spacing: -0.02em;
  }

  .hero__label {
    margin-bottom: var(--space-lg);
  }

  .hero__subtitle {
    font-size: var(--text-base);
    max-width: 100%;
    line-height: 1.75;
    margin-bottom: var(--space-2xl);
  }

  .hero__cta {
    font-size: var(--text-xs);
    padding: var(--space-sm) 0;
  }

  .hero__scroll {
    display: none;
  }

  /* ─ Section Headers ─ */
  .section-header {
    flex-direction: row;
    align-items: center;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-md);
  }

  .section-header__label {
    font-size: 0.65rem;
    letter-spacing: 0.14em;
  }

  .section-header__count {
    font-size: var(--text-base);
  }

  .section-header__link {
    font-size: var(--text-xs);
  }

  /* ─ Project Cards ─ */
  .projects-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .project-card {
    display: block;
    border-radius: 10px;
  }

  .project-card__image {
    aspect-ratio: 16 / 9;
    border-radius: 9px 9px 0 0;
  }

  .project-card__content {
    padding: var(--space-lg);
  }

  .project-card__tag {
    font-size: 0.65rem;
    letter-spacing: 0.12em;
  }

  .project-card__title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-xs);
  }

  .project-card__desc {
    font-size: var(--text-sm);
    line-height: 1.7;
    color: var(--text-secondary);
  }

  .project-card__arrow {
    display: none;
  }

  .project-card:hover {
    transform: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  }

  /* ─ Articles (Homepage) ─ */
  .articles-list {
    gap: 0;
  }

  .article-item {
    flex-direction: column;
    gap: var(--space-sm);
    padding: var(--space-lg) 0;
  }

  .article-item:hover {
    padding-left: 0;
  }

  .article-item__number {
    font-size: var(--text-lg);
    min-width: auto;
    opacity: 0.3;
  }

  .article-item__title {
    font-size: var(--text-lg);
  }

  .article-item__excerpt {
    font-size: var(--text-sm);
    line-height: 1.75;
  }

  /* ─ Articles Page Grid ─ */
  .articles-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .article-card {
    padding: var(--space-lg);
    border-radius: 10px;
  }

  .article-card__title {
    font-size: var(--text-lg);
    line-height: 1.35;
  }

  .article-card__excerpt {
    font-size: var(--text-sm);
    line-height: 1.75;
  }

  .article-card__date {
    margin-top: var(--space-md);
    padding-top: var(--space-sm);
  }

  /* ─ About ─ */
  .about {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .about__heading {
    position: static;
  }

  .about__heading .heading-2 {
    font-size: var(--text-2xl);
  }

  .about__text p {
    font-size: var(--text-base);
    line-height: 1.8;
    margin-bottom: var(--space-md);
  }

  .about__links {
    flex-wrap: wrap;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
  }

  .about__link {
    font-size: var(--text-xs);
  }

  /* ─ Footer ─ */
  .footer {
    padding: var(--space-2xl) 0;
  }

  .footer__inner {
    flex-direction: column;
    gap: var(--space-lg);
    align-items: center;
    text-align: center;
  }

  .footer__copy {
    font-size: var(--text-xs);
    order: 2;
    opacity: 0.5;
  }

  .footer__links {
    order: 1;
    gap: var(--space-xl);
  }

  .footer__link {
    font-size: var(--text-sm);
    position: relative;
    padding-bottom: 2px;
  }

  /* ─ Page Header (sub-pages) ─ */
  .page-header {
    padding-top: calc(var(--nav-height) + var(--space-2xl));
    padding-bottom: var(--space-xl);
  }

  .page-header__title {
    font-size: var(--text-3xl);
  }

  .page-header__subtitle {
    font-size: var(--text-base);
  }

  /* ─ Sections ─ */
  .section {
    padding: var(--space-4xl) 0;
  }

  .section--sm {
    padding: var(--space-3xl) 0;
  }

  /* ─ Dividers ─ */
  .divider--accent {
    width: 36px;
  }
}

/* ── Small Mobile (≤ 480px) ── */
@media (max-width: 480px) {
  :root {
    --text-6xl: 2.25rem;
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
    --text-3xl: 1.5rem;
    --text-2xl: 1.25rem;
    --text-xl:  1.1rem;
    --space-5xl: 3.5rem;
    --space-4xl: 2.5rem;
    --space-3xl: 2rem;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .heading-display {
    letter-spacing: -0.015em;
  }

  .hero__subtitle {
    font-size: var(--text-sm);
    line-height: 1.8;
  }

  .hero__label {
    font-size: 0.6rem;
    margin-bottom: var(--space-md);
  }

  .hero__cta {
    font-size: 0.65rem;
  }

  /* Cards get even more compact */
  .project-card__content {
    padding: var(--space-md);
  }

  .project-card__title {
    font-size: var(--text-lg);
  }

  .project-card__desc {
    font-size: var(--text-xs);
    line-height: 1.7;
  }

  .project-card__tag {
    font-size: 0.6rem;
  }

  .project-card__image {
    aspect-ratio: 3 / 2;
  }

  /* Articles */
  .article-item__title {
    font-size: var(--text-base);
  }

  .article-card__title {
    font-size: var(--text-base);
  }

  /* About */
  .about__heading .heading-2 {
    font-size: var(--text-xl);
  }

  .about__text p {
    font-size: var(--text-sm);
    line-height: 1.8;
  }

  .about__links {
    gap: var(--space-md);
  }

  /* Section headers */
  .section-header__label {
    font-size: 0.6rem;
  }

  /* Nav */
  .nav__links .nav__link {
    font-size: var(--text-xl);
    padding: var(--space-lg) var(--space-md);
  }

  /* Footer */
  .footer__links {
    gap: var(--space-lg);
  }
}