/* ========================================
   CTW Studio Portfolio — mvsm.com-inspired
   ======================================== */

:root {
  --gap: 24px;
  --nav-height: 72px;
  --transition-fast: 0.2s ease;
  --transition-med: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scrollbar-gutter: stable;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: #000000;
  color: #f2f1ec;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  color-scheme: dark;
}

/* ---- Three.js Blueprint Canvas ---- */
#blueprint-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
  mix-blend-mode: screen;
}

/* Ensure grid cells sit above the canvas */
.portfolio-grid {
  position: relative;
  z-index: 10;
}

/* ========================================
   Navigation (frosted glass — matches landing page)
   ======================================== */
.frost-nav {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 50;
}

.frost-glass {
  position: absolute;
  inset: 0;
  --extended-by: 100px;
  bottom: calc(-1 * var(--extended-by));
  --filter: blur(24px);
  -webkit-backdrop-filter: var(--filter);
  backdrop-filter: var(--filter);
  pointer-events: none;
  --cutoff: calc(100% - var(--extended-by));
  -webkit-mask-image: linear-gradient(to bottom, black 0, black var(--cutoff), transparent var(--cutoff));
  mask-image: linear-gradient(to bottom, black 0, black var(--cutoff), transparent var(--cutoff));
}

.frost-glass-edge {
  position: absolute;
  z-index: -1;
  left: 0;
  right: 0;
  --extended-by: 80px;
  --offset: 20px;
  --thickness: 2px;
  height: calc(var(--extended-by) + var(--offset));
  top: calc(100% - var(--offset) + var(--thickness));
  --filter: blur(60px) saturate(140%) brightness(1.2);
  -webkit-backdrop-filter: var(--filter);
  backdrop-filter: var(--filter);
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, black 0, black var(--offset), transparent var(--offset));
  mask-image: linear-gradient(to bottom, black 0, black var(--offset), transparent var(--offset));
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, rgba(247, 181, 0, 0.9), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

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

/* ========================================
   Portfolio Grid
   ======================================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: min(21vw, 400px);
  gap: var(--gap);
  padding: var(--gap);
  padding-top: calc(var(--nav-height) + var(--gap));
}

.grid-cell {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border-radius: 16px;
  max-height: 400px;
  /* Default: spans 2 of 6 cols (1/3 width) */
  grid-column: span 2;
}

.grid-cell.span-2 {
  /* Wide: spans 4 of 6 cols (2/3 width) */
  grid-column: span 4;
}

.grid-cell.span-3 {
  /* Half: spans 3 of 6 cols (1/2 width) */
  grid-column: span 3;
}

/* ---- Cell Image ---- */
.cell-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.cell-image.loaded {
  opacity: 1;
}

/* ---- Gallery Image Fade-in ---- */
.gallery-item img {
  opacity: 0;
  transition: opacity 0.4s ease;
}

.gallery-item img.loaded {
  opacity: 1;
}

.cell-gradient-bg {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cell-gradient-bg span {
  font-size: 2rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: -0.02em;
}

/* No image zoom on hover — only gradient overlay */

/* ---- Cell Text Overlay ---- */
.cell-info {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: clamp(1rem, 2.5vw, 1.75rem);
  z-index: 2;
  pointer-events: none;
}

.cell-info h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 400;
  color: #fff;
  line-height: 1.2;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

.cell-info p {
  font-size: clamp(0.7rem, 1.2vw, 0.875rem);
  color: rgba(255, 255, 255, 0.8);
  margin-top: 0.25rem;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
}

.cell-info-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.45) 0%, rgba(0, 0, 0, 0) 100%);
  z-index: 1;
  pointer-events: none;
}

/* ---- Hover Overlay ---- */
.cell-hover-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  opacity: 0;
  transition: opacity var(--transition-med);
  z-index: 3;
}

.grid-cell:hover .cell-hover-overlay {
  opacity: 1;
}

.cell-hover-overlay .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 999px;
  text-decoration: none;
  transition: transform var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: #fff;
  color: #0a0a0a;
}

.btn-primary:hover {
  transform: scale(1.05);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.05);
}

/* ---- Scroll Reveal ---- */
.grid-cell {
  opacity: 0.2;
  transform: translateY(20px);
}

.grid-cell.revealed {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

/* ---- Touch devices ---- */
@media (hover: none) {
  .cell-hover-overlay {
    display: none;
  }

  .cell-info-gradient {
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0) 50%, rgba(0, 0, 0, 0.15) 100%);
  }
}

/* ========================================
   Detail Overlay (mvsm.com full-page style)
   ======================================== */
.detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: #0a0a0a;
  color: #f2f1ec;
  display: flex;
  flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.detail-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* ---- Sticky Header (mvsm.com: title center, close right) ---- */
.detail-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem clamp(1.5rem, 4vw, 3rem);
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  flex-shrink: 0;
}

.detail-header-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  text-align: center;
}

.detail-header-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.detail-header-meta {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
}

.detail-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  flex-shrink: 0;
}

.detail-close:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.05);
}

/* ---- Scrollable Body ---- */
.detail-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4rem;
}

/* ---- Separator ---- */
.detail-separator {
  width: 60px;
  height: 1px;
  background: rgba(255, 255, 255, 0.2);
  margin: 2.5rem auto 0;
}

/* ---- Headline (centered, large) ---- */
.detail-headline {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  text-align: center;
  max-width: 640px;
  margin: 2.5rem auto 0;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

/* ---- Description (centered paragraphs) ---- */
.detail-description {
  max-width: 560px;
  margin: 1.5rem auto 0;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
  text-align: center;
}

.detail-description p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 1rem;
}

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

/* ---- Tags ---- */
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  max-width: 560px;
  margin: 1.5rem auto 0;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

.detail-tag {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.3rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.55);
}

/* ---- Action Links ---- */
.detail-links {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin: 1.5rem auto 0;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

.detail-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.6rem 1.25rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 999px;
  text-decoration: none;
  transition: transform var(--transition-fast);
  font-family: inherit;
}

.detail-links a:hover {
  transform: scale(1.03);
}

.detail-link-primary {
  background: #fff;
  color: #0a0a0a;
}

.detail-link-secondary {
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  color: #fff;
}

.detail-link-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* ========================================
   Gallery (mvsm.com layout)
   Full-width images, videos, and 2-col pairs
   with generous spacing
   ======================================== */
.detail-gallery {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0 clamp(3rem, 6vw, 5rem);
  max-width: 1700px;
  margin-left: auto;
  margin-right: auto;
}

.gallery-item img,
.gallery-video {
  width: 100%;
  display: block;
  border-radius: 12px;
}

.gallery-video {
  background: #000;
  aspect-ratio: 16 / 9;
}

/* Full-width items */
.gallery-full img,
.gallery-full video {
  width: 100%;
}

/* Side-by-side pair */
.gallery-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

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

/* Captions */
.gallery-caption {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
  padding: 0.5rem 0 0.75rem;
}

/* ---- Next Project ---- */
.detail-next {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 4rem;
  padding: 3rem clamp(1.5rem, 4vw, 3rem) 2rem;
  text-align: center;
}

.detail-next-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 0.75rem;
}

.detail-next-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  display: inline-block;
  transition: opacity var(--transition-fast);
}

.detail-next-title:hover {
  opacity: 0.7;
}

.detail-next-title::after {
  content: ' \2192';
  opacity: 0.5;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
  .portfolio-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: min(25vw, 400px);
  }

  .grid-cell {
    grid-column: span 2;
  }

  .grid-cell.span-2 {
    grid-column: span 4;
  }

  .grid-cell.span-3 {
    grid-column: span 2;
  }

  .detail-gallery {
    padding: 0 clamp(1.5rem, 4vw, 3rem);
  }
}

@media (max-width: 640px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: 55vw;
    padding-top: calc(var(--nav-height) + 0.5rem);
  }

  .grid-cell,
  .grid-cell.span-2,
  .grid-cell.span-3 {
    grid-column: span 1;
  }

  .detail-gallery {
    padding: 0 1rem;
  }

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

/* ========================================
   Utility classes (replaces Tailwind CDN)
   ======================================== */
a {
  color: inherit;
  text-decoration: none;
}

.flex {
  display: flex;
}

.hidden {
  display: none;
}

.relative {
  position: relative;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.mt-52 {
  margin-top: 13rem;
}

.max-w-6xl {
  max-width: 72rem;
}

.max-w-\[1700px\] {
  max-width: 1700px;
}

.px-6 {
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.px-4 {
  padding-left: 1rem;
  padding-right: 1rem;
}

.py-5 {
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
}

.py-2 {
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.gap-2\.5 {
  gap: 0.625rem;
}

.gap-4 {
  gap: 1rem;
}

.w-9 {
  width: 2.25rem;
}

.h-9 {
  height: 2.25rem;
}

.text-lg {
  font-size: 1.125rem;
  line-height: 1.75rem;
}

.text-sm {
  font-size: 0.875rem;
  line-height: 1.25rem;
}

.font-semibold {
  font-weight: 600;
}

.font-medium {
  font-weight: 500;
}

.tracking-tight {
  letter-spacing: -0.025em;
}

.rounded-full {
  border-radius: 9999px;
}

.border {
  border-width: 1px;
  border-style: solid;
}

.border-amber-400 {
  border-color: #fbbf24;
}

.text-amber-400 {
  color: #fbbf24;
}

.text-gray-300 {
  color: #d1d5db;
}

.transition-colors {
  transition-property: color, background-color, border-color, text-decoration-color, fill, stroke;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
}

.hover\:bg-amber-400:hover {
  background-color: #fbbf24;
}

.hover\:text-black:hover {
  color: #000;
}

@media (min-width: 768px) {
  .md\:py-6 {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
  }

  .md\:w-10 {
    width: 2.5rem;
  }

  .md\:h-10 {
    height: 2.5rem;
  }

  .md\:gap-8 {
    gap: 2rem;
  }

  .md\:text-base {
    font-size: 1rem;
    line-height: 1.5rem;
  }

  .md\:block {
    display: block;
  }
}