/* Portfolio Section */

:root{
  --bg:#FAF6EF;
  --ink:#1D2430;
  --accent:#EB4A2E;
  --accent-dark:#C63A21;
  --muted:#797E88;
  --badge-bg:#F1EDE4;
  --card-border:#ECE5D8;
  --white:#FFFFFF;
  --card-h:470px; /* single source of truth: front + back always match this */
}

*{box-sizing:border-box;}

body{
  background:var(--bg);
  font-family:'Inter',sans-serif;
  color:var(--ink);
  overflow-x:hidden;
  position:relative;
}

.font-display{font-family:'Sora',sans-serif;}

/* ---------- Dot grid decorations ---------- */
.dot-grid{
  position:absolute;
  width:130px;
  height:110px;
  background-image:radial-gradient(var(--accent) 1.6px, transparent 1.6px);
  background-size:16px 16px;
  opacity:.35;
  pointer-events:none;
  z-index:0;
}
.dot-grid.top-left{top:18px; left:18px;}
.dot-grid.top-right{top:18px; right:18px;}

.bg-dot-field{
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(29,36,48,0.05) 1px, transparent 1px);
  background-size:26px 26px;
  z-index:0;
  pointer-events:none;
}

.section-wrap{position:relative; z-index:1;}

/* ---------- Hero ---------- */
.hero{
  padding:50px 20px 50px;
  text-align:center;
  max-width:760px;
  margin:0 auto;
}
.eyebrow{
  color:var(--accent);
  letter-spacing:2.5px;
  font-size:13px;
  font-weight:700;
  font-family:'Sora',sans-serif;
}
.hero h1{
  font-family:'Sora',sans-serif;
  font-weight:800;
  font-size:clamp(2.2rem,5vw,3.4rem);
  letter-spacing:-1px;
  margin-bottom:18px;
}
.hero h1 span{color:var(--accent);}
.hero p{
  color:var(--muted);
  font-size:1.05rem;
  line-height:1.7;
}
.hero p em{color:var(--ink); font-style:italic;}

/* ---------- Filter bar ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:12px;
  max-width:1100px;
  margin:0 auto 55px;
  padding:0 20px;
}
.filter-scroll{
  display:flex;
  align-items:center;
  gap:12px;
}
.filter-pill{
  border:1.5px solid var(--card-border);
  background:var(--white);
  color:var(--ink);
  font-weight:600;
  font-size:.92rem;
  padding:10px 20px;
  border-radius:50px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
  flex-shrink:0;
  transition:.25s ease;
  cursor:pointer;
}
.filter-pill i{font-size:.85rem;}
.filter-pill:hover{
  border-color:var(--accent);
  color:var(--accent);
  transform:translateY(-2px);
}
.filter-pill.active{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
  box-shadow:0 8px 18px rgba(235,74,46,.28);
}
.filter-pill.active:hover{color:#fff;}
.filter-pill:focus-visible,
.explore-btn:focus-visible,
.case-study-btn:focus-visible,
.reload-btn:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}

.search-wrap{
  position:relative;
  margin-left:auto;
}
.search-wrap input{
  border:1.5px solid var(--card-border);
  border-radius:50px;
  padding:10px 20px 10px 42px;
  font-size:.92rem;
  width:230px;
  background:var(--white);
  transition:.25s ease;
}
.search-wrap input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(235,74,46,.12);
}
.search-wrap i{
  position:absolute;
  left:16px;
  top:50%;
  transform:translateY(-50%);
  color:var(--muted);
  font-size:.9rem;
}

@media (max-width:991px){
  .search-wrap{margin-left:0; width:100%;}
  .search-wrap input{width:100%;}
}

@media (max-width:767px){
  .filter-bar{
    flex-wrap:wrap;
    justify-content:flex-start;
  }
  .filter-scroll{
    order:1;
    width:100%;
    overflow-x:auto;
    overflow-y:hidden;
    scrollbar-width:none;
    -ms-overflow-style:none;
    -webkit-overflow-scrolling:touch;
    padding-bottom:4px;
    scroll-snap-type:x proximity;
  }
  .filter-scroll::-webkit-scrollbar{display:none;}
  .filter-pill{scroll-snap-align:start;}
  .search-wrap{
    order:2;
    flex:0 0 100%;
    width:100%;
    margin-top:6px;
  }
  .search-wrap input{width:100%;}
}

/* ---------- Cards ---------- */
.portfolio-grid{
  max-width:1180px;
  margin:0 auto;
  padding:0 20px 100px;
}

/*
  Fixed height, not JS-measured. Both faces are position:absolute; inset:0
  inside this box, so front and back are ALWAYS identical width/height —
  and because .card-desc below is line-clamped, the front face's own
  content is a constant height too, so nothing ever overflows or leaves
  a gap. No sizing JS required.
*/
.flip-outer{
  perspective:1800px;
  height:var(--card-h);
  margin-bottom:30px;
}
.flip-inner{
  position:relative;
  width:100%;
  height:100%;
  transition:transform .8s cubic-bezier(.4,.2,.2,1);
  transform-style:preserve-3d;
}
.flip-outer.flipped .flip-inner{
  transform:rotateY(180deg);
}
.flip-face{
  position:absolute;
  inset:0;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
  border-radius:20px;
  background:var(--white);
  border:1px solid var(--card-border);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:box-shadow .3s ease, transform .3s ease;
}
.flip-outer:not(.flipped) .flip-face.face-front:hover{
  box-shadow:0 20px 40px rgba(29,36,48,.1);
  transform:translateY(-6px);
}
.face-back{
  transform:rotateY(180deg);
}

/* front face */
.card-thumb-wrap{
  height:190px;
  flex-shrink:0;
  overflow:hidden;
}
.card-thumb{
  height:100%;
  width:100%;
  object-fit:cover;
  display:block;
  transition:transform .5s ease;
}
.flip-outer:not(.flipped) .flip-face.face-front:hover .card-thumb{
  transform:scale(1.08);
}

.card-body{
  padding:22px 20px;
  display:flex;
  flex-direction:column;
}
.card-tag{
  color:var(--accent);
  font-size:.72rem;
  font-weight:700;
  letter-spacing:1.5px;
  margin-bottom:8px;
}
.card-title{
  font-family:'Sora',sans-serif;
  font-weight:700;
  font-size:1.35rem;
  margin-bottom:10px;
  color:var(--ink);
}
.card-desc{
  color:var(--muted);
  font-size:.92rem;
  line-height:1.6;
  margin-bottom:14px;
  /* clamp to 3 lines so every card's content block is the same height,
     regardless of how long each project's description is */
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.badge-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin:0 0 18px;
}
.tech-badge{
  background:var(--badge-bg);
  color:var(--ink);
  font-size:.78rem;
  font-weight:600;
  padding:6px 14px;
  border-radius:50px;
  transition:.2s ease;
}
.flip-outer:not(.flipped) .flip-face.face-front:hover .tech-badge{
  background:var(--white);
  border:1px solid var(--card-border);
}
.explore-btn{
  border:1.5px solid var(--accent);
  color:var(--accent);
  background:transparent;
  font-weight:700;
  font-size:.95rem;
  padding:12px 20px;
  border-radius:50px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition:.25s ease;
  width:100%;
}
.explore-btn:hover{
  background:var(--accent);
  color:#fff;
}
.explore-btn i{transition:.25s ease;}
.explore-btn:hover i{transform:translateX(4px);}

/* back face */
.back-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 22px;
  border-bottom:1px solid var(--card-border);
  flex-shrink:0;
}
.back-project{
  font-family:'Sora',sans-serif;
  font-weight:700;
  font-size:1.1rem;
  color:var(--ink);
}
.back-project small{
  display:block;
  font-family:'Inter',sans-serif;
  font-weight:600;
  font-size:.7rem;
  letter-spacing:1.5px;
  color:var(--accent);
  margin-bottom:3px;
}
.reload-btn{
  width:40px;height:40px;
  border-radius:50%;
  border:1.5px solid var(--card-border);
  background:var(--white);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--ink);
  transition:.3s ease;
  flex-shrink:0;
}
.reload-btn:hover{
  border-color:var(--accent);
  color:var(--accent);
  background:var(--badge-bg);
}
.reload-btn i{transition:transform .5s ease;}
.reload-btn:hover i{transform:rotate(-180deg);}

/* image slider fills all remaining space below back-head;
   dots + case-study button are overlays anchored to the image itself */
.slider-wrap{
  position:relative;
  flex:1;
  margin:18px 22px;
  border-radius:14px;
  overflow:hidden;
  background:var(--badge-bg);
}
.slider-wrap::after{
  content:'';
  position:absolute;
  left:0; right:0; bottom:0;
  height:110px;
  background:linear-gradient(to top, rgba(0,0,0,.62), rgba(0,0,0,0));
  pointer-events:none;
}
.slider-wrap img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:0;
  transition:opacity .6s ease;
}
.slider-wrap img.active{opacity:1;}
.slider-dots{
  position:absolute;
  top:14px;
  left:0;
  right:0;
  display:flex;
  justify-content:center;
  gap:6px;
  z-index:2;
}
.slider-dots span{
  width:6px;height:6px;
  border-radius:50%;
  background:rgba(255,255,255,.55);
  transition:.3s ease;
}
.slider-dots span.active{
  background:#fff;
  width:18px;
  border-radius:4px;
}

.case-study-btn{
  position:absolute;
  left:16px;
  right:16px;
  bottom:14px;
  z-index:2;
  margin:0;
  background:var(--ink);
  color:#fff;
  border:none;
  font-weight:700;
  font-size:.95rem;
  padding:13px 20px;
  border-radius:50px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition:.25s ease;
}
.case-study-btn:hover{
  background:var(--accent);
  transform:translateY(-2px);
}

/* ---------- Empty state ---------- */
.empty-state{
  text-align:center;
  padding:80px 20px;
  color:var(--muted);
  display:none;
}
.empty-state i{font-size:2.2rem; color:var(--accent); margin-bottom:14px; display:block;}

/* ---------- Mobile ---------- */
/* --card-h stays constant across breakpoints: the clamped description
   makes content height independent of card width, so no per-breakpoint
   height overrides are needed anymore. */
@media (max-width:767px){
  .hero{padding:60px 16px 40px;}
}