/* ═══════════════════════════════════════════════════════════
   SHARED THEME — edit variables here to restyle everything
   ═══════════════════════════════════════════════════════════ */

/* ─── GOOGLE FONTS (imported via <link> in each HTML file) ─ */
/* DM Serif Display + DM Mono */

/* ─── DESIGN TOKENS ─────────────────────────────────────── */
:root {
  /* Colours — Chula Pink (#DF5D8D) Palette */
  --bg:        #FFFFFF;   /* ultra-crisp pure white background */
  --surface:   #F6F1F3;   /* soft rose-tinted card surface */
  --ink:       #1C1618;   /* deep rich charcoal text */
  --muted:     #6E6266;   /* secondary muted text */
  --accent:    #DF5D8D;   /* official Chula Pink */
  --border:    #EBDDE1;   /* delicate rose-gray border */

  /* Typography */
  --serif:     'DM Serif Display', Georgia, serif;
  --mono:      'DM Mono', 'Courier New', monospace;
  --sans:      'Space Grotesk', system-ui, -apple-system, sans-serif;

  /* Spacing & shape */
  --gap:       clamp(1.75rem, 4vw, 3.25rem);
  --radius:    4px;
  --transition: 200ms ease;
}

/* ─── RESET ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: clamp(13px, 1.4vw, 15px);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; object-fit: contain; }
ul { list-style: none; }

/* ─── THUMBNAIL & SHOWCASE IMAGE OVERLAY FIX ─────────────── */
.project-thumb,
.showcase-banner {
  position: relative !important;
  overflow: hidden !important;
}
.project-thumb img,
.showcase-banner img {
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: contain !important;
  z-index: 10 !important;
  background: transparent !important;
}

/* ─── LAYOUT ─────────────────────────────────────────────── */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 2.5rem);
}
section { padding: var(--gap) 0; border-top: 1px solid var(--border); }
section:first-of-type { border-top: none; }

/* ─── NAV ────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.nav-logo {
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.nav-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.nav-links a {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--ink); }

/* ─── SECTION HEADING ────────────────────────────────────── */
.section-heading {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.section-heading h2 {
  font-family: var(--sans);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}
.section-heading .count {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

/* ─── BREADCRUMB ─────────────────────────────────────────── */
.breadcrumb {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}
nav .breadcrumb { margin-bottom: 0; }
.breadcrumb a { color: var(--accent); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--ink); }

/* ─── TAGS ───────────────────────────────────────────────── */
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tag {
  border: 1px solid var(--border);
  padding: 0.3rem 0.75rem;
  font-size: 0.78rem;
  border-radius: var(--radius);
  color: var(--muted);
  transition: border-color var(--transition), color var(--transition);
}
.tag:hover { border-color: var(--ink); color: var(--ink); }

/* ─── BUTTON ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--ink);
  padding: 0.65rem 1.4rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  background: transparent;
  color: var(--ink);
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.btn:hover { background: var(--ink); color: var(--bg); }


/* ─── FORM ELEMENTS ──────────────────────────────────────── */
label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
input[type="text"],
input[type="color"],
select,
textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.9rem;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius);
  transition: border-color var(--transition);
  outline: none;
}
input[type="text"]:focus,
select:focus,
textarea:focus { border-color: var(--ink); }
input[type="color"] {
  padding: 0.2rem 0.3rem;
  height: 2.4rem;
  cursor: pointer;
}
select { cursor: pointer; }

/* ─── CARD ───────────────────────────────────────────────── */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: background var(--transition);
}
.card:hover { background: var(--surface); }

/* ─── FOOTER ─────────────────────────────────────────────── */
footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  font-size: 0.75rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* ─── ANIMATIONS ─────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.fade-in.visible { opacity: 1; transform: none; }

/* ─── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 640px) {
  nav .container {
    padding-top: 0.85rem;
    padding-bottom: 0.85rem;
    gap: 0.75rem;
  }
  .nav-links {
    gap: 1rem;
    flex-wrap: wrap;
  }
  .nav-links a {
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    padding: 0.3rem 0;
  }
}

@media (max-width: 540px) {
  nav .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
  .nav-logo {
    font-size: 1rem;
    flex-shrink: 0;
  }
  .nav-links {
    width: 100%;
    justify-content: flex-start;
    gap: 1rem;
  }
}

/* ─── PROJECT MODAL OVERLAY ───────────────────────────── */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(10, 10, 12, 0.78);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2vh 2vw;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.modal-window {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 2);
  width: 100%;
  max-width: 1280px;
  height: 96vh;
  max-height: 96vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.05);
  transform: scale(0.97) translateY(10px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 2rem 1.5rem 1rem 1.5rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  container-type: inline-size;
}
.modal-overlay.active .modal-window {
  transform: scale(1) translateY(0);
}
.modal-close-btn {
  position: sticky;
  top: 1rem;
  float: right;
  z-index: 20;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--ink);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: -44px;
  margin-right: -0.5rem;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}
.modal-close-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: rotate(90deg) scale(1.05);
}
/* Ensure clean styling inside modal body */
.modal-body nav,
.modal-body footer {
  display: none;
}

.modal-body #project-hero {
  padding-top: 1rem !important;
  padding-bottom: 2rem !important;
}

/* ─── COMPREHENSIVE MOBILE OPTIMIZATIONS (< 640px) ───────── */
@media (max-width: 640px) {
  /* 1. Centered Floating Pop-Up Modal for Mobile */
  .modal-overlay {
    padding: 0 !important;
    align-items: center !important;
  }
  .modal-window {
    height: 100dvh !important;
    max-height: 100dvh !important;
    border-radius: 0 !important;
    padding: 1.5rem 1rem 0.5rem !important;
    transform: translateY(15px);
  }
  .modal-overlay.active .modal-window {
    transform: translateY(0);
  }

  .modal-close-btn {
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
    margin-bottom: -44px;
    margin-right: 0;
    top: 0.5rem;
  }

  /* 2. Detail Page & Global Typography Adjustments */
  #project-hero {
    padding: 1.5rem 0 !important;
  }
  .project-header-tag {
    font-size: 0.68rem !important;
    margin-bottom: 0.5rem !important;
  }
  .project-main-title {
    font-size: 1.45rem !important;
    line-height: 1.2 !important;
    margin-bottom: 1rem !important;
  }
  .project-subtitle {
    font-size: 0.88rem !important;
    line-height: 1.65 !important;
    margin-bottom: 1.75rem !important;
  }
  .markdown-body {
    margin-bottom: 2.25rem !important;
  }
  .markdown-body h1,
  .markdown-body h2,
  .markdown-body h3 {
    font-size: 1.15rem !important;
    margin-bottom: 0.75rem !important;
  }
  .markdown-body p,
  .markdown-body ul,
  .markdown-body ol {
    font-size: 0.82rem !important;
    line-height: 1.65 !important;
    margin-bottom: 1rem !important;
  }
  .markdown-body ul li,
  .markdown-body ol li {
    margin-bottom: 0.45rem !important;
  }
  .markdown-body blockquote {
    padding: 1.25rem !important;
    margin: 1.75rem 0 2.25rem !important;
  }
  .markdown-body blockquote h4 {
    font-size: 0.72rem !important;
  }
  .markdown-body blockquote p {
    font-size: 0.84rem !important;
    line-height: 1.6 !important;
  }
  .showcase-banner {
    height: 180px !important;
  }
  .meta-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1rem !important;
    padding: 1.25rem 0 !important;
    margin-bottom: 2.25rem !important;
  }
  .meta-item h4 {
    font-size: 0.68rem !important;
  }
  .meta-item p {
    font-size: 0.82rem !important;
  }
  
  
  .section-heading h2 {
    font-size: 1.45rem !important;
  }
}

@media (max-width: 440px) {
  .meta-grid {
    grid-template-columns: 1fr !important;
  }
}

/* ─── TOUCH SCREEN OPTIMIZATIONS (No Hover Friction) ─────── */
@media (hover: none) {
  .card:hover,
  .project-card:hover {
    transform: none !important;
    box-shadow: 0 4px 15px -5px rgba(0, 0, 0, 0.2) !important;
  }
  .card:active,
  .project-card:active {
    transform: scale(0.98) !important;
    border-color: var(--accent) !important;
  }
}

/* ─── 1. MODAL LOADING SPINNER ───────────────────────────── */
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }
.modal-loader-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6rem 1rem;
  gap: 1.25rem;
}
.modal-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.modal-loader-text {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--muted);
  animation: pulse 1.5s ease-in-out infinite;
}

/* ─── 2. TOAST NOTIFICATION ──────────────────────────────── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  opacity: 0;
  visibility: hidden;
  background: var(--ink);
  color: #FFFFFF;
  padding: 0.75rem 1.5rem;
  border-radius: 99px;
  box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.35);
  font-family: var(--mono);
  font-size: 0.85rem;
  z-index: 9999;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}

/* ─── 3. SMOOTH CATEGORY TAB TRANSITION ──────────────────── */
@keyframes filterFadeIn {
  0% { opacity: 0; transform: translateY(12px) scale(0.99); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
.filter-group.active-group {
  animation: filterFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ─── PROJECT DETAIL STYLES ───────────────────────────── */
#project-hero {
  padding: clamp(3rem, 8vw, 6rem) 0 var(--gap);
  border-top: none;
}
.project-header-tag {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.project-main-title {
  font-family: var(--sans);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}
.project-subtitle {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 680px;
  margin-bottom: 2.5rem;
}

/* Meta Info Grid */
.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}
.meta-item h4 {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.3rem;
}
.meta-item p {
  font-size: 0.88rem;
  color: var(--ink);
  font-weight: 500;
}

/* Visual Showcase Banner */
#project-showcase {
  margin-bottom: 4rem;
}
.showcase-banner {
  width: 100%;
  height: clamp(240px, 45vw, 480px);
  background: linear-gradient(135deg, var(--surface) 0%, var(--border) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.showcase-banner img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.showcase-icon {
  font-size: clamp(3.5rem, 12vw, 7rem);
}

/* Markdown CMS Content Sections */
.markdown-body {
  max-width: 720px;
  margin-bottom: 3.5rem;
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 2rem;
  margin-bottom: 1rem;
}
.markdown-body h1 { font-size: 2rem; }
.markdown-body h2 { font-size: 1.8rem; }
.markdown-body h3 { font-size: 1.6rem; }
.markdown-body h4 { font-size: 1.3rem; margin-top: 1.5rem; margin-bottom: 0.8rem; }

.markdown-body p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.85;
  margin-bottom: 1.25rem;
}
.markdown-body ul,
.markdown-body ol {
  padding-left: 1.25rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}
.markdown-body ul { list-style-type: square; }
.markdown-body ol { list-style-type: decimal; }
.markdown-body ul li,
.markdown-body ol li {
  margin-bottom: 0.6rem;
}

/* Highlight Card / Note (Mapped to Blockquote) */
.markdown-body blockquote {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1.75rem;
  border-radius: var(--radius);
  margin: 2.5rem 0 3.5rem;
  max-width: 720px;
}
.markdown-body blockquote h4 {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-family: var(--mono);
}
.markdown-body blockquote p {
  margin-bottom: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--ink);
  font-style: italic;
}

/* ─── ACCESSIBILITY: REDUCED MOTION ──────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* ═══════════════════════════════════════════════════════════
   ACCESSIBILITY
   ═══════════════════════════════════════════════════════════ */

/* ─── SKIP TO CONTENT ────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: var(--ink);
  color: var(--bg);
  padding: 0.75rem 1.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  border-radius: var(--radius);
  text-decoration: none;
  transition: top var(--transition);
}
.skip-link:focus {
  top: 1rem;
}

/* ═══════════════════════════════════════════════════════════
   HOMEPAGE-SPECIFIC STYLES (moved from index.html)
   ═══════════════════════════════════════════════════════════ */

/* ─── HERO ────────────────────────────────────────────────── */
#hero {
  padding: clamp(2.5rem, 7vw, 4.5rem) 0 var(--gap);
  border-top: none;
}
.hero-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.hero-name {
  font-family: var(--sans);
  font-size: clamp(2.8rem, 8vw, 6rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 1.5rem;
}
.hero-name em { font-style: normal; color: var(--muted); font-weight: 400; }
.hero-bio {
  max-width: 520px;
  color: var(--muted);
  margin-bottom: 1.75rem;
  line-height: 1.85;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: 1px solid var(--ink);
  padding: 0.65rem 1.4rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  transition: background var(--transition), color var(--transition);
}
.hero-cta:hover { background: var(--ink); color: var(--bg); }
.hero-cta .arrow { transition: transform var(--transition); }
.hero-cta:hover .arrow { transform: translateX(4px); }

/* ─── PROJECTS ────────────────────────────────────────────── */
.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  background: transparent;
  border: none;
}
.project-card {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: 0 0 2.5rem 0;
  display: flex;
  flex-direction: row-reverse;
  align-items: center;
  gap: 2.5rem;
  cursor: pointer;
  position: relative;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  box-shadow: none;
  text-decoration: none;
  color: inherit;
}
.project-card:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.project-card:hover {
  background: transparent;
  transform: none;
  box-shadow: none;
  border-bottom-color: var(--border);
}
.project-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.project-thumb {
  width: clamp(220px, 32%, 340px);
  height: 190px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--surface) 0%, var(--border) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.project-card:hover .project-thumb img {
  transform: scale(1.06);
}
.project-thumb-icon {
  font-size: 2.5rem;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 2;
}
.project-card:hover .project-thumb-icon {
  transform: scale(1.15) rotate(4deg);
}

.project-content {
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}
.project-tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.project-title {
  font-family: var(--sans);
  font-size: clamp(1.4rem, 4vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--ink);
  transition: color 0.2s ease;
}
.project-card:hover .project-title {
  color: var(--accent);
}
.project-desc {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
  flex: 1;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.project-footer {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-top: 0;
  border-top: none;
  font-size: 0.8rem;
  color: var(--muted);
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 500;
  opacity: 0.85;
  transition: all 0.2s ease;
}
.project-card:hover .project-link {
  opacity: 1;
  color: var(--accent);
  transform: translateX(3px);
}

/* ─── SKILLS ──────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: 1.75rem;
}
.skill-group h3 {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.skill-detail-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.skill-detail-list li {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.75;
}
.skill-detail-list li strong {
  color: var(--ink);
  font-weight: 400;
}

/* ─── EXPERIENCE ──────────────────────────────────────────── */
.exp-list { display: flex; flex-direction: column; }
.exp-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 2rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
}
.exp-item:first-child { border-top: 1px solid var(--border); }
.exp-period { font-size: 0.78rem; color: var(--muted); padding-top: 0.2rem; }
.exp-role { font-family: var(--sans); font-size: 1.15rem; font-weight: 600; }
.exp-company { color: var(--accent); font-size: 0.85rem; margin: 0.2rem 0 0.5rem; }
.exp-desc { color: var(--muted); font-size: 0.84rem; line-height: 1.75; }


/* ─── CONTACT ─────────────────────────────────────────────── */
#contact { border-bottom: 1px solid var(--border); }
.contact-block {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}
.contact-text h2 {
  font-family: var(--sans);
  font-size: clamp(2rem, 6vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 1rem;
}
.contact-text p { color: var(--muted); max-width: 380px; }
.contact-links { display: flex; flex-direction: column; gap: 0.6rem; align-items: flex-end; }
.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted);
  transition: color var(--transition);
}
.contact-link:hover { color: var(--ink); }

/* ─── FILTER TABS ─────────────────────────────────────────── */
.filter-tabs {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.filter-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 0.5rem 1.1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  border-radius: 3px;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}
.filter-btn.active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.filter-group {
  margin-bottom: 2rem;
}
.group-title {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

/* ─── HOMEPAGE RESPONSIVE (≤ 640px) ───────────────────────── */
@media (max-width: 640px) {
  /* Hero */
  .hero-name {
    font-size: clamp(1.8rem, 8vw, 2.4rem) !important;
    margin-bottom: 1rem !important;
  }
  .hero-bio {
    font-size: 0.84rem !important;
    line-height: 1.65 !important;
    margin-bottom: 1.25rem !important;
  }

  /* Filter Tabs */
  .filter-tabs {
    flex-wrap: wrap !important;
    overflow-x: visible !important;
    padding-bottom: 0 !important;
    margin-bottom: 1.5rem !important;
    gap: 0.5rem !important;
  }
  .filter-btn {
    flex-shrink: 0;
    white-space: nowrap;
    padding: 0.5rem 0.9rem !important;
    font-size: 0.74rem !important;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
  }

  /* Project Cards */
  .projects-grid {
    gap: 2rem !important;
  }
  .project-card {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 1.25rem !important;
    padding-bottom: 2rem !important;
  }
  .project-thumb {
    width: 100% !important;
    height: 200px !important;
  }
  .project-thumb-icon {
    font-size: 3rem !important;
  }
  .project-content {
    padding: 0 !important;
    gap: 0.5rem !important;
    width: 100% !important;
  }
  .project-title {
    font-size: 1.3rem !important;
  }
  .project-desc {
    font-size: 0.9rem !important;
    line-height: 1.6 !important;
    -webkit-line-clamp: 3 !important;
  }
  .project-footer {
    margin-top: 0.4rem !important;
  }

  /* Experience & Contact */
  .exp-item { grid-template-columns: 1fr; gap: 0.3rem; }
  .exp-role { font-size: 1rem !important; }
  .exp-desc { font-size: 0.8rem !important; line-height: 1.6 !important; }
  .contact-text h2 { font-size: 1.7rem !important; margin-bottom: 0.6rem !important; }
  .contact-text p { font-size: 0.82rem !important; }
  .contact-links { align-items: flex-start; }
}