/* =========================================================
   BANGTAO STUDIO — Portfolio page styles
   portfolio.html only — not imported into main.css
   ========================================================= */

/* ─── Hero ─────────────────────────────────────────── */

.portfolio-hero {
  background: var(--warm-1);
  padding-top: calc(var(--nav-h) + var(--nav-top) + 48px);
  padding-bottom: clamp(48px, 7vw, 80px);
  text-align: center;
}

.portfolio-hero__inner {
  max-width: 640px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.portfolio-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  background: var(--ink);
  color: var(--cream);
  padding: 7px 20px;
  border-radius: var(--r-pill);
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  font-weight: var(--fw-medium);
}

.portfolio-hero__title {
  font-family: var(--ff-display);
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.022em;
  color: var(--ink);
  font-weight: 600;
  margin: 0;
}

.portfolio-hero__sub {
  max-width: 460px;
  font-size: clamp(15px, 1.2vw, 17px);
  color: var(--ink-soft);
  line-height: 1.65;
  margin: 0;
}

@media (max-width: 880px) {
  .portfolio-hero { padding-top: clamp(80px, 15vw, 108px); }
}

/* ─── Website Portfolio Section ─────────────────────── */

.portfolio-websites {
  padding-block: var(--section-y);
  background: var(--warm-2);
}

.portfolio-websites__head {
  text-align: center;
  margin-bottom: clamp(28px, 4vw, 40px);
}

.portfolio-websites__head .eyebrow {
  display: block;
  margin-bottom: var(--space-3);
}

.portfolio-websites__head h2 {
  font-size: clamp(32px, 4.5vw, 60px);
  letter-spacing: -0.022em;
  line-height: 1.06;
  margin: 0 0 var(--space-3);
}

.portfolio-websites__head p {
  max-width: 440px;
  margin-inline: auto;
  color: var(--ink-soft);
  line-height: var(--lh-body);
}

/* ─── Filter Pills ──────────────────────────────────── */

.portfolio-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  margin-bottom: clamp(28px, 4vw, 48px);
  padding: 0;
  list-style: none;
}

.portfolio-filter__pill {
  display: inline-flex;
  align-items: center;
  padding: 9px 20px;
  border-radius: var(--r-pill);
  border: 1.5px solid rgba(15, 15, 15, 0.15);
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  user-select: none;
  line-height: 1;
  transition:
    background var(--dur-fast) var(--ease-out-soft),
    border-color var(--dur-fast) var(--ease-out-soft),
    color var(--dur-fast) var(--ease-out-soft);
}

.portfolio-filter__pill:hover:not(.is-active) {
  border-color: rgba(15, 15, 15, 0.38);
  color: var(--ink);
  background: rgba(15, 15, 15, 0.04);
}

.portfolio-filter__pill.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--cream);
}

/* 3-column website grid */
.portfolio-websites__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  transition: opacity 160ms var(--ease-out-soft);
}

.portfolio-websites__grid.is-filtering {
  opacity: 0;
  pointer-events: none;
}

.portfolio-card[hidden] { display: none !important; }

@media (max-width: 900px) {
  .portfolio-websites__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .portfolio-websites__grid { grid-template-columns: 1fr; }
}

/* ─── View More button ───────────────────────────────── */

.portfolio-reveal-wrap {
  display: flex;
  justify-content: center;
  margin-top: clamp(28px, 4vw, 40px);
}

.portfolio-reveal-btn {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid rgba(15, 15, 15, 0.25);
  padding: 14px 28px;
  border-radius: var(--r-pill);
  font-family: var(--ff-body);
  font-size: var(--fs-small);
  font-weight: var(--fw-semi);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition:
    border-color var(--dur-fast) var(--ease-out-soft),
    background var(--dur-fast) var(--ease-out-soft);
}

.portfolio-reveal-btn:hover {
  border-color: rgba(15, 15, 15, 0.5);
  background: rgba(15, 15, 15, 0.04);
}

.portfolio-reveal-btn .btn-chevron {
  display: inline-flex;
  transition: transform var(--dur-fast) var(--ease-out-soft);
}

.portfolio-reveal-btn[aria-expanded="true"] .btn-chevron {
  transform: rotate(180deg);
}

/* ─── Brand & Design Carousel ────────────────────────── */

.portfolio-design {
  padding-block: var(--section-y);
  background: var(--warm-1);
}

.portfolio-design__head {
  text-align: center;
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: clamp(48px, 7vw, 80px);
}

.portfolio-design__head .eyebrow {
  display: block;
  margin-bottom: var(--space-3);
}

.portfolio-design__head h2 {
  font-size: clamp(32px, 4.5vw, 60px);
  letter-spacing: -0.022em;
  line-height: 1.06;
  margin: 0 0 var(--space-4);
}

.portfolio-design__head p {
  color: var(--ink-soft);
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 1.65;
}

/* Carousel wrapper — clips horizontal overflow */
.portfolio-design-carousel-wrap {
  overflow-x: clip;
  overflow-y: visible;
  padding-block: 32px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}

.portfolio-design-carousel {
  display: flex;
}

.portfolio-design-carousel.is-paused .portfolio-design__track {
  animation-play-state: paused;
}

.portfolio-design__track {
  /* Single var drives the grid gap, the between-group gap and the loop-seam
     padding — so spacing is identical everywhere, including the loop point. */
  --carousel-gap: var(--marquee-gap);
  display: flex;
  align-items: flex-start;
  gap: var(--carousel-gap);
  flex-shrink: 0;
  width: max-content;
  padding-inline-end: var(--carousel-gap);
  animation: design-carousel-scroll 55s linear infinite;
  will-change: transform;
}

@keyframes design-carousel-scroll {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}

/* ─── Masonry group — 2-row CSS grid ──────────────── */

.portfolio-design__group {
  display: grid;
  flex: 0 0 auto;
  grid-template-columns: repeat(6, clamp(120px, 13.5vw, 166px));
  grid-template-rows: clamp(145px, 16vw, 188px) clamp(145px, 16vw, 188px);
  gap: var(--carousel-gap, 11px);
}

.dc-1 { grid-column: 1;     grid-row: 1; }
.dc-2 { grid-column: 2;     grid-row: 1; }
.dc-3 { grid-column: 1 / 3; grid-row: 2; }
.dc-4 { grid-column: 3;     grid-row: 1 / 3; }
.dc-5 { grid-column: 4 / 6; grid-row: 1; }
.dc-6 { grid-column: 4;     grid-row: 2; }
.dc-7 { grid-column: 5;     grid-row: 2; }
.dc-8 { grid-column: 6;     grid-row: 1 / 3; }

/* ─── Design Card — image-only ─────────────────────── */

.portfolio-design-card {
  width: 100%;
  height: 100%;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(15, 15, 15, 0.08), 0 1px 4px rgba(15, 15, 15, 0.04);
  transition:
    transform var(--dur-base) var(--ease-out-soft),
    box-shadow var(--dur-base) var(--ease-out-soft);
  cursor: default;
}

.portfolio-design-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(15, 15, 15, 0.12), 0 4px 12px rgba(15, 15, 15, 0.06);
}

.portfolio-design-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--dur-base) var(--ease-out-soft);
}

.portfolio-design-card:hover .portfolio-design-card__img {
  transform: scale(1.04);
}

/* ─── Campaigns & Reels Section ─────────────────────── */

.portfolio-reels {
  padding-block: var(--section-y);
  background: var(--warm-2);
}

.portfolio-reels__head {
  text-align: center;
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: clamp(48px, 7vw, 80px);
}

.portfolio-reels__head .eyebrow {
  display: block;
  margin-bottom: var(--space-3);
}

.portfolio-reels__head h2 {
  font-size: clamp(32px, 4.5vw, 60px);
  letter-spacing: -0.022em;
  line-height: 1.06;
  margin: 0 0 var(--space-4);
}

.portfolio-reels__head p {
  color: var(--ink-soft);
  font-size: clamp(15px, 1.3vw, 18px);
  line-height: 1.65;
}

/* Extra vertical padding so tilted corners and hover shadows are never clipped */
.portfolio-reels__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-block: 48px;
}

.portfolio-reels__scroll::-webkit-scrollbar { display: none; }

.portfolio-reels__row {
  display: flex;
  gap: clamp(16px, 2.5vw, 28px);
  padding-inline: var(--container-pad);
  width: max-content;
  margin-inline: auto;
}

/* On wide screens, center the row if it fits */
@supports (width: max-content) {
  @media (min-width: 1200px) {
    .portfolio-reels__scroll {
      display: flex;
      justify-content: center;
    }
    .portfolio-reels__row {
      width: auto;
    }
  }
}

/* ─── Reel Card ────────────────────────────────────── */

.portfolio-reel-card {
  flex-shrink: 0;
  width: clamp(169px, 20vw, 222px);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  cursor: default;
}

.portfolio-reel-card:nth-child(odd)  { --reel-tilt: -2deg; }
.portfolio-reel-card:nth-child(even) { --reel-tilt:  2deg; }

.portfolio-reel-card__frame {
  width: 100%;
  aspect-ratio: 9 / 16;
  border-radius: 20px;
  background: #141414;
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(15, 15, 15, 0.10), 0 2px 6px rgba(15, 15, 15, 0.06);
  transform: rotate(var(--reel-tilt));
  transition:
    transform var(--dur-base) var(--ease-out-soft),
    box-shadow var(--dur-base) var(--ease-out-soft);
}

.portfolio-reel-card:hover .portfolio-reel-card__frame {
  transform: rotate(0deg) scale(1.03) translateY(-6px);
  box-shadow: 0 16px 40px rgba(15, 15, 15, 0.14), 0 4px 12px rgba(15, 15, 15, 0.08);
}

/* Video layer — sits below cover image */
.portfolio-reel-card__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  z-index: 0;
}

/* Cover image — fades out on hover to reveal video */
.portfolio-reel-card__cover {
  position: absolute;
  inset: 0;
  z-index: 1;
  transition: opacity 0.4s var(--ease-out-soft);
}

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

.portfolio-reel-card:hover .portfolio-reel-card__cover img {
  transform: scale(1.04);
}

.portfolio-reel-card__cover.is-faded {
  opacity: 0;
}

/* Gradient overlay — always visible above media */
.portfolio-reel-card__frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.88) 0%,
    rgba(10, 10, 10, 0.10) 45%,
    transparent 68%
  );
  pointer-events: none;
  z-index: 2;
}

.portfolio-reel-card__pill {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  background: var(--pill-bg, var(--sun));
  color: var(--pill-fg, var(--ink));
  font-family: var(--ff-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: var(--fw-bold);
  line-height: 1.2;
}

.portfolio-reel-card__frame-text {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 14px 14px 18px;
  z-index: 3;
}

.portfolio-reel-card__frame-title {
  font-family: var(--ff-display);
  font-size: clamp(12px, 1.1vw, 15px);
  font-weight: 600;
  color: #fff;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0;
}

.portfolio-reel-card__caption {
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-mute);
  padding-inline: 4px;
}

@media (max-width: 760px) {
  .portfolio-reel-card { width: clamp(144px, 42vw, 189px); }
}

@media (max-width: 560px) {
  .portfolio-reel-card:nth-child(odd),
  .portfolio-reel-card:nth-child(even) { --reel-tilt: 0deg; }
}

/* ─── Reduce motion ────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .portfolio-reel-card__frame,
  .portfolio-design-card,
  .portfolio-filter__pill,
  .portfolio-websites__grid,
  .portfolio-reel-card__cover,
  .portfolio-reel-card__cover img { transition: none; }
  .portfolio-reel-card__frame { transform: none !important; }
  .portfolio-design__track { animation: none; }
}

/* ─── Temporarily hidden sections ──────────────────────
   Fully removes a section from layout (no spacing/gap left behind).
   Used to hide the Video / Ads Marketing (Campaigns & Reels) section
   until that service is offered. Restore by removing the
   "is-hidden-section" class from the section in portfolio.html. */

.is-hidden-section { display: none !important; }