:root {
  --pink:       #e6007e;
  --blue:       #009fe3;
  --teal:       #27cfc3;
  --grad:       linear-gradient(135deg, #e6007e 0%, #009fe3 100%);
  --dark:       #0d0d0d;
  --dark-600:   #1a1a1a;
  --dark-500:   #242424;
  --dark-400:   #2e2e2e;
  --dark-300:   #3a3a3a;
  --grey-500:   #676767;
  --grey-400:   #888888;
  --grey-100:   #e0e0e0;
  --white:      #ffffff;

  --font-display: 'Bebas Neue', 'Arial Black', sans-serif;
  --font-serif:   'EB Garamond', Georgia, serif;
  --font-heading: 'Poppins', system-ui, sans-serif;
  --font-body:    'Poppins', system-ui, sans-serif;

  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --grid-max: 2000px;
  --grid-cols: 12;
  --grid-gap: 24px;
  --grid-margin: clamp(24px, 5vw, 80px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--dark);
  color: var(--grey-100);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ═══════════════════════════════════════════════════════════
   NEON BLUR ORBS
   ═══════════════════════════════════════════════════════════ */

.neon-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  will-change: transform;
}

.neon-orb--1 {
  width: clamp(350px, 45vw, 800px);
  height: clamp(350px, 45vw, 800px);
  background: radial-gradient(circle, rgba(230,0,126,0.4) 0%, rgba(230,0,126,0.15) 40%, transparent 70%);
  animation: orbDrift1 14s ease-in-out infinite;
}

.neon-orb--2 {
  width: clamp(250px, 30vw, 500px);
  height: clamp(250px, 30vw, 500px);
  background: radial-gradient(circle, rgba(230,0,126,0.3) 0%, rgba(230,0,126,0.1) 40%, transparent 70%);
  animation: orbDrift2 18s ease-in-out infinite;
}

@keyframes orbDrift1 {
  0%   { transform: translate(0, 0) scale(1); }
  25%  { transform: translate(60px, -80px) scale(1.15); }
  50%  { transform: translate(-40px, 40px) scale(0.9); }
  75%  { transform: translate(80px, 20px) scale(1.1); }
  100% { transform: translate(0, 0) scale(1); }
}

@keyframes orbDrift2 {
  0%   { transform: translate(0, 0) scale(1); }
  25%  { transform: translate(-50px, 60px) scale(1.1); }
  50%  { transform: translate(70px, -30px) scale(0.95); }
  75%  { transform: translate(-30px, -50px) scale(1.05); }
  100% { transform: translate(0, 0) scale(1); }
}

/* ═══════════════════════════════════════════════════════════
   PORTFOLIO SECTION
   ═══════════════════════════════════════════════════════════ */

.portfolio {
  position: relative;
  width: 100%;
  overflow: clip;
  padding: clamp(80px, 10vw, 140px) 0;
}

.portfolio-inner {
  position: relative;
  z-index: 1;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 var(--grid-margin);
}

/* ─── HEADER ───────────────────────────────────────────── */

.portfolio-header {
  margin-bottom: 48px;
}

.portfolio-label {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--pink);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.portfolio-label::before {
  content: '';
  width: 32px;
  height: 2px;
  background: var(--grad);
  flex-shrink: 0;
}

.portfolio-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  letter-spacing: 0.04em;
  line-height: 0.92;
  color: var(--white);
  margin-bottom: 16px;
}

.portfolio-headline em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── FILTER TABS (sticky) ─────────────────────────────── */

.filter-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 16px 0;
  margin-bottom: 24px;
  background: linear-gradient(to bottom, var(--dark) 60%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.filter-btn {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--dark-400);
  background: transparent;
  color: var(--grey-400);
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--dark-300);
  color: var(--white);
}

.filter-btn.active {
  background: var(--pink);
  border-color: var(--pink);
  color: var(--white);
}

/* ─── MASONRY GRID ─────────────────────────────────────── */

.portfolio-grid {
  columns: 4;
  column-gap: 20px;
}

/* 4-column CSS grid variant (case studies / uniform) */
.portfolio-grid--4col {
  columns: unset;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.portfolio-grid--4col .portfolio-card { margin-bottom: 0; break-inside: unset; }

/* ─── CARD ─────────────────────────────────────────────── */

.portfolio-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--dark-600);
  cursor: pointer;
  break-inside: avoid;
  margin-bottom: 20px;
  transition: transform 0.4s var(--ease-out), opacity 0.4s ease;
}

.portfolio-card.hidden {
  display: none;
}

/* 16:9 image container */
.portfolio-card-img {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

/* Tall variant for masonry variety */
.portfolio-card--tall .portfolio-card-img {
  aspect-ratio: 9 / 12;
}

/* Square variant */
.portfolio-card--sq .portfolio-card-img {
  aspect-ratio: 1 / 1;
}

.portfolio-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease-out);
}

.portfolio-card:hover .portfolio-card-img img {
  transform: scale(1.06);
}

/* Hover overlay */
.portfolio-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7,8,12,0.9) 0%, rgba(7,8,12,0.3) 40%, transparent 100%);
  opacity: 0;
  transition: opacity 0.35s ease;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
}

.portfolio-card:hover .portfolio-card-overlay {
  opacity: 1;
}

.portfolio-card-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.06em;
  color: var(--white);
  margin-bottom: 4px;
}

.portfolio-card-cat {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pink);
}

/* Arrow icon */
.portfolio-card-arrow {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translate(8px, -8px);
  transition: opacity 0.3s ease, transform 0.3s var(--ease-out);
}

.portfolio-card:hover .portfolio-card-arrow {
  opacity: 1;
  transform: translate(0, 0);
}

.portfolio-card-arrow svg {
  width: 16px;
  height: 16px;
  stroke: var(--white);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ─── BOTTOM INFO BAR (always visible) ─────────────────── */

.portfolio-card-info {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.portfolio-card-info-title {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
}

.portfolio-card-info-tag {
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-500);
  background: var(--dark-500);
  padding: 4px 10px;
  border-radius: 100px;
}

/* ═══════════════════════════════════════════════════════════
   SCROLL REVEAL
   ═══════════════════════════════════════════════════════════ */

.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);
}

/* ═══════════════════════════════════════════════════════════
   BREAKPOINTS
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 1200px) {
  :root { --grid-margin: clamp(20px, 4vw, 56px); }
  .portfolio-grid { column-gap: 16px; }
  .portfolio-card { margin-bottom: 16px; }
}

@media (max-width: 1000px) {
  :root { --grid-margin: clamp(20px, 3.5vw, 40px); }
  .portfolio-grid { columns: 3; }
  .portfolio-grid--4col { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 600px) {
  :root { --grid-margin: 20px; }
  .portfolio-grid { columns: 2; }
  .portfolio-grid--4col { grid-template-columns: repeat(2, 1fr); }
  .portfolio-headline { font-size: clamp(2rem, 8vw, 3rem); }
  .filter-bar { gap: 6px; }
  .filter-btn { font-size: 12px; padding: 6px 14px; }
}

@media (max-width: 400px) {
  :root { --grid-margin: 16px; }
  .portfolio-grid { columns: 1; }
  .portfolio-grid--4col { grid-template-columns: 1fr; }
}