@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=DM+Sans:wght@300;400;500&display=swap');

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

:root {
  --bg: #0e0e0e;
  --surface: #161616;
  --border: #2a2a2a;
  --text-primary: #f0ede8;
  --text-secondary: #888;
  --accent: #c8f060;
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'DM Sans', sans-serif;
  --max-width: 900px;
  --px: clamp(1.25rem, 5vw, 3rem);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── LAYOUT ── */
.p-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--px);
  padding-right: var(--px);
}

/* ── NAV ── */
.p-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding-block: 1rem;
}

.p-nav .p-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.p-nav-logo {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-decoration: none;
}

.p-nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.p-nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

/* ── FOOTER ── */
.p-footer {
  border-top: 1px solid var(--border);
  padding-block: 2rem;
}

.p-footer .p-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.p-footer p { font-size: 0.78rem; color: var(--text-secondary); }

.p-footer-links { display: flex; gap: 1.5rem; list-style: none; }

.p-footer-links a {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* ── CASE STUDY SHARED ── */
.case-hero {
  padding-top: clamp(3rem, 10vw, 7rem);
  padding-bottom: clamp(2rem, 6vw, 4rem);
  border-bottom: 1px solid var(--border);
}

.case-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-bottom: 2rem;
  transition: color 0.2s;
}

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

.case-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.case-hero .case-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 60ch;
  margin-bottom: 1.5rem;
}

.case-meta {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 2.5rem;
  margin-top: 1.5rem;
}

.case-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.case-meta-label {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.case-meta-value {
  font-size: 0.85rem;
  color: var(--text-primary);
}

.tag-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }

.tag {
  font-size: 0.68rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.case-cover {
  width: 100%;
  aspect-ratio: 16/9; /* reserves space before JS sets the src, preventing layout shift */
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-top: 2.5rem;
  display: block;
}

.case-section {
  padding-block: clamp(1.5rem, 3vw, 2.5rem);

}

.case-section:last-of-type { border-bottom: none; }

.case-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.case-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.case-section p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 65ch;
  margin-bottom: 1rem;
}

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

.case-highlight {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem 1.5rem;
  margin-top: 1.5rem;
}

.case-highlight ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.case-highlight li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 1.2rem;
  position: relative;
}

.case-highlight li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.case-image {
  width: 100%;
  border-radius: 6px;
  margin-top: 1.5rem;
  display: block;
  cursor: zoom-in;
}

/* Lightbox for case study images */
.case-img-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
  cursor: zoom-out;
  padding: 2rem;
}

.case-img-lightbox.open { opacity: 1; visibility: visible; }

.case-img-lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 6px;
}

.case-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.case-two-col .col-block,
.case-three-col .col-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.1rem 1.2rem;
}

.col-block h4 {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.col-block p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.case-three-col {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.case-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 2.5rem;
}

.case-nav a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.82rem;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.case-nav a:hover { color: var(--accent); }
.case-nav .next { margin-left: auto; }

.case-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.case-links a {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: 999px;
  transition: all 0.2s;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.case-links a:hover {
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.case-links a.primary {
  background: var(--text-primary);
  color: var(--bg);
  border: none;
}

.case-links a.primary:hover { background: var(--accent); }

/* ── BACK TO TOP ── */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, background 0.2s, border-color 0.2s, color 0.2s;
  z-index: 99;
}

.back-to-top.visible { opacity: 1; visibility: visible; box-shadow: 0 0 0 1px var(--text-secondary); }

.back-to-top:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .case-two-col { grid-template-columns: 1fr; }
  .case-three-col { grid-template-columns: 1fr; }
  .case-meta { gap: 1rem; }
}

/* ── CONTROLLER MAP ── */
.ctrl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.ctrl-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem 1rem;
}

.ctrl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2rem;
  height: 2.2rem;
  padding: 0 0.5rem;
  background: var(--bg);
  border: 1px solid var(--accent);
  border-radius: 5px;
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.ctrl-action {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

@media (max-width: 640px) {
  .ctrl-grid { grid-template-columns: 1fr; }
}

/* ── INDEX PAGE ── */
#portfolio-root { width: 100%; }

.p-section { padding-block: clamp(1rem, 2vw, 1.5rem); }
.p-section + .p-section { border-top: 1px solid var(--border); }

.p-hero { padding-top: clamp(3rem, 10vw, 7rem); padding-bottom: clamp(1rem, 2vw, 3rem); }
.p-hero-inner { display: flex; flex-direction: column; gap: 1.5rem; }

.p-hero-identity {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.p-avatar-btn {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--border);
  cursor: pointer;
  background: none;
  padding: 0;
  transition: border-color 0.2s;
}

.p-avatar-btn:hover { border-color: var(--accent); }

.p-avatar-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
  filter: grayscale(20%);
  display: block;
}

.p-avatar-name {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.p-avatar-name strong {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-primary);
}

.p-avatar-name span {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.p-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.68rem;
  color: #7ec87e;
  letter-spacing: 0.03em;
  margin-top: 0.1rem;
}

.p-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #7ec87e;
  flex-shrink: 0;
  animation: status-pulse 2.5s ease-in-out infinite;
}

@keyframes status-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.p-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 20ch;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.p-hero p {
  color: var(--text-secondary);
  max-width: 52ch;
  font-size: 0.95rem;
  margin-bottom: 1.75rem;
}

.p-btns { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.p-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: 999px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.p-btn-primary { background: var(--text-primary); color: var(--bg); }
.p-btn-primary:hover { background: var(--accent); }
.p-btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.p-btn-ghost:hover { border-color: var(--text-secondary); color: var(--text-primary); }

/* ── LIGHTBOX ── */
.p-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
  cursor: pointer;
}

.p-lightbox.open { opacity: 1; visibility: visible; }

.p-lightbox img {
  width: clamp(260px, 50vw, 420px);
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: center 15%;
  border-radius: 12px;
  filter: grayscale(15%);
  border: 1px solid var(--border);
}

/* ── WORK GRID ── */
.p-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.p-work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.p-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s;
  border-top: 3px solid transparent;
}

.p-card:hover { border-color: #444; transform: translateY(-2px); }

/* ── PROJECT CATEGORY COLOURS ── */
.p-card.cat-pm         { border-top-color: #7c6af7; }
.p-card.cat-research   { border-top-color: #f4a642; }
.p-card.cat-gamification { border-top-color: #3ecfb2; }
.p-card.cat-uxui       { border-top-color: #c8f060; }
.p-card.cat-gamedesign { border-top-color: #e05c7a; }

.p-card-category {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 0.4rem;
  display: block;
}

.cat-pm .p-card-category          { color: #7c6af7; }
.cat-research .p-card-category    { color: #f4a642; }
.cat-gamification .p-card-category { color: #3ecfb2; }
.cat-uxui .p-card-category        { color: #c8f060; }
.cat-gamedesign .p-card-category  { color: #e05c7a; }

.p-card-thumb {
  width: 100%;
  aspect-ratio: 16/10;
  display: block;
  object-fit: cover;
  background: #222;
}

.p-card-body { padding: 1rem 1.1rem 1.2rem; }

.p-card-title {
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.p-card-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 0.75rem;
}

.p-tag-list { display: flex; flex-wrap: wrap; gap: 0.4rem; list-style: none; }

.p-tag {
  font-size: 0.68rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

/* ── ABOUT ── */
.p-about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.p-about-grid > div:last-child {
  display: flex;
  flex-direction: column;
}

.p-about-text p { font-size: 0.9rem; color: var(--text-secondary); }
.p-about-text p + p { margin-top: 1em; }

/* ── SKILLS & TOOLS ── */
.p-skill-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.1rem 1.2rem;
  margin-bottom: 1rem;
}

.p-skill-block h4 {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.p-skill-block p { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.55; }

.p-tools-section { margin-top: 0; }

.p-tools-label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  display: block;
}

.p-tools-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
}

.p-tool {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.45rem 0.75rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.p-tool img {
  width: 16px;
  height: 16px;
  object-fit: contain;
  opacity: 0.85;
  filter: brightness(0) invert(1);
}

/* ── RESPONSIVE (INDEX) ── */
@media (max-width: 640px) {
  .p-hero-inner { grid-template-columns: 1fr; }
  .p-hero-photo { display: none; }
  .p-about-grid { grid-template-columns: 1fr; }
  .p-work-grid { grid-template-columns: 1fr; }
}

/* ── FILTER BAR ── */
.p-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.p-filter {
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.p-filter[data-cat="all"]              { color: var(--text-secondary); border-color: var(--border); }
.p-filter[data-cat="cat-pm"]           { color: #7c6af7; border-color: #7c6af755; }
.p-filter[data-cat="cat-research"]     { color: #f4a642; border-color: #f4a64255; }
.p-filter[data-cat="cat-gamification"] { color: #3ecfb2; border-color: #3ecfb255; }
.p-filter[data-cat="cat-uxui"]         { color: #c8f060; border-color: #c8f06055; }
.p-filter[data-cat="cat-gamedesign"]   { color: #e05c7a; border-color: #e05c7a55; }

.p-filter.active[data-cat="all"]              { background: var(--surface); color: var(--text-primary); border-color: #444; }
.p-filter.active[data-cat="cat-pm"]           { background: #7c6af722; color: #7c6af7; border-color: #7c6af7; }
.p-filter.active[data-cat="cat-research"]     { background: #f4a64222; color: #f4a642; border-color: #f4a642; }
.p-filter.active[data-cat="cat-gamification"] { background: #3ecfb222; color: #3ecfb2; border-color: #3ecfb2; }
.p-filter.active[data-cat="cat-uxui"]         { background: #c8f06022; color: #c8f060; border-color: #c8f060; }
.p-filter.active[data-cat="cat-gamedesign"]   { background: #e05c7a22; color: #e05c7a; border-color: #e05c7a; }

.p-card { transition: border-color 0.25s, transform 0.25s, opacity 0.25s; }
.p-card.dimmed { opacity: 0.25; transform: scale(0.98); }

/* ── NAV DROPDOWN ── */
.p-nav-dropdown { position: relative; }

.p-nav-dropdown-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 0;
  transition: color 0.2s;
}

.p-nav-dropdown-btn:hover { color: var(--text-primary); }

.p-nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0.75rem);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  list-style: none;
  min-width: 200px;
  overflow: hidden;
  z-index: 200;
}

.p-nav-dropdown-menu li a {
  display: block;
  padding: 0.65rem 1rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.p-nav-dropdown-menu li a:hover {
  background: var(--border);
  color: var(--text-primary);
}

.p-nav-dropdown.open .p-nav-dropdown-menu { display: block; }

.fl-table { width: 100%; border-collapse: collapse; margin-bottom: 2rem; font-size: 0.8rem; }
.fl-table th { text-align: left; font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); border-bottom: 1px solid var(--border); padding: 0.5rem 0.75rem; }
.fl-table td { padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--border); color: var(--text-secondary); vertical-align: top; }
.fl-table td:first-child { color: var(--text-primary); font-weight: 500; white-space: nowrap; }