/* page header */
.page-header{display:flex;align-items:center;gap:20px;margin-bottom:15px}
.page-icon{width:72px;height:72px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.4);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;flex-shrink:0}
.page-icon.tools{background:linear-gradient(to bottom,#f5a623 0%,#d68910 50%,#a8690a 100%)}
.page-icon.research{background:linear-gradient(to bottom,#a8d8ff 0%,#5da5d4 50%,#2a6d9e 100%)}
.page-icon::before{content:'';position:absolute;top:0;left:0;right:0;height:50%;background:linear-gradient(to bottom,rgba(255,255,255,.3),rgba(255,255,255,.05))}
.page-icon svg{width:44px;height:44px;position:relative;z-index:1;filter:drop-shadow(0 1px 2px rgba(0,0,0,.5))}
.page-title{color:#fff;font-size:48px;font-weight:300;text-shadow:0 2px 8px rgba(0,0,0,.7);letter-spacing:1px}
.page-subtitle{color:rgba(255,255,255,.8);font-size:16px;font-style:italic;margin-bottom:30px;margin-left:92px;text-shadow:0 1px 3px rgba(0,0,0,.7)}

/* search */
.search-wrapper{position:relative;margin-bottom:25px}
.search-input{width:100%;padding:14px 20px 14px 48px;background:rgba(0,0,0,.4);border:1px solid rgba(255,255,255,.2);border-radius:12px;color:#fff;font-size:16px;font-family:inherit;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);outline:none;transition:border-color .2s,background .2s,box-shadow .2s;-webkit-appearance:none;appearance:none}
.search-input::placeholder{color:rgba(255,255,255,.5)}
.search-input:focus{border-color:rgba(168,216,255,.7);background:rgba(0,0,0,.55);box-shadow:0 0 20px rgba(168,216,255,.25)}
.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:rgba(255,255,255,.6);pointer-events:none}
.search-clear{position:absolute;right:12px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.15);border:none;color:#fff;cursor:pointer;display:none;align-items:center;justify-content:center;font-size:14px;transition:background .2s}
.search-clear:hover{background:rgba(255,255,255,.3)}
.search-clear.visible{display:flex}
.search-count{font-size:12px;color:rgba(255,255,255,.6);margin-bottom:15px;text-shadow:0 1px 2px rgba(0,0,0,.5);min-height:16px}
.no-results{text-align:center;padding:40px 20px;color:rgba(255,255,255,.6);font-style:italic;display:none}
.no-results.visible{display:block}
mark{background:rgba(168,216,255,.35);color:#eaf4ff;padding:0 3px;border-radius:2px}
.hidden{display:none !important}

/* project cards */
#grid{display:flex;flex-direction:column;gap:22px}
.card{position:relative;border-radius:16px;padding:30px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform .3s,box-shadow .3s;cursor:pointer;text-decoration:none;color:#fff;display:block;overflow:hidden;border:1px solid rgba(160,160,170,.25);background:radial-gradient(circle at 15% 20%,rgba(180,180,190,.1) 0%,transparent 45%),radial-gradient(circle at 85% 80%,rgba(140,140,150,.08) 0%,transparent 45%),linear-gradient(135deg,rgba(30,30,35,.85),rgba(12,12,15,.9))}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(160,160,170,.2),0 0 0 1px rgba(180,180,190,.4)}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(to right,#6b7280,#9ca3af,#6b7280);box-shadow:0 0 15px rgba(156,163,175,.5)}
.card::after{content:'@';position:absolute;top:15px;right:25px;font-size:90px;font-weight:700;color:rgba(180,180,190,.08);line-height:1;pointer-events:none}
.card-title-group{position:relative;z-index:1}
.card-title{font-size:28px;font-weight:500;text-shadow:0 1px 3px rgba(0,0,0,.7)}
.card-subtitle{font-size:13px;color:rgba(200,200,210,.7);margin-top:6px;font-family:'Consolas','Courier New',monospace}
.card-desc{font-size:14px;color:rgba(255,255,255,.85);line-height:1.6;text-shadow:0 1px 2px rgba(0,0,0,.5);position:relative;z-index:1;margin:18px 0}
.card-meta{margin-top:8px;padding-top:15px;border-top:1px solid rgba(160,160,170,.2);display:flex;justify-content:flex-end;align-items:center;font-size:12px;color:rgba(220,220,230,.85);position:relative;z-index:1}
.card-cta{display:flex;align-items:center;gap:6px;font-weight:500;transition:color .2s,transform .2s}
.card:hover .card-cta{color:#fff;transform:translateX(3px)}

/* research list */
.posts{display:flex;flex-direction:column;gap:22px}
.post{background:rgba(0,0,0,.4);border:1px solid rgba(255,255,255,.15);border-radius:14px;padding:32px 36px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform .25s,background .25s,border-color .25s;cursor:pointer;text-decoration:none;color:#fff;display:block}
.post:hover,.post:active{transform:translateX(4px);background:rgba(0,0,0,.55);border-color:rgba(255,255,255,.3)}
.post-date{font-size:12px;color:#a8d8ff;text-transform:uppercase;letter-spacing:2.5px;margin-bottom:14px;font-weight:600;text-shadow:0 0 8px rgba(168,216,255,.3)}
.post-title{font-size:26px;font-weight:500;margin-bottom:14px;line-height:1.3;text-shadow:0 1px 3px rgba(0,0,0,.7)}
.post-excerpt{font-size:16px;color:rgba(255,255,255,.88);line-height:1.75;text-shadow:0 1px 2px rgba(0,0,0,.5)}
.post-meta{margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:rgba(255,255,255,.6);display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.post-meta .dot{color:rgba(255,255,255,.3)}

@media (max-width:768px){
  .page-header{gap:14px;margin-bottom:12px}
  .page-icon{width:56px;height:56px;border-radius:8px}
  .page-icon svg{width:34px;height:34px}
  .page-title{font-size:34px;letter-spacing:.5px}
  .page-subtitle{font-size:14px;margin-left:0;margin-bottom:24px}
  .search-input{padding:12px 16px 12px 42px;border-radius:10px}
  .search-icon{left:14px}
  .card{padding:22px 20px;border-radius:14px}
  .card::after{font-size:70px;top:10px;right:18px}
  .card-title{font-size:22px}
  .card-desc{margin:14px 0}
  .posts{gap:16px}
  .post{padding:22px 20px;border-radius:12px}
  .post:hover,.post:active{transform:none}
  .post-date{font-size:11px;letter-spacing:2px;margin-bottom:10px}
  .post-title{font-size:20px;margin-bottom:10px}
  .post-excerpt{font-size:15px;line-height:1.65}
  .post-meta{margin-top:16px;padding-top:12px;font-size:12px;gap:12px}
}
@media (max-width:380px){
  .page-title{font-size:28px}
  .page-icon{width:48px;height:48px}
  .page-icon svg{width:28px;height:28px}
  .card{padding:18px 16px}
  .card-title{font-size:20px}
  .card::after{font-size:60px}
  .post{padding:18px 16px}
  .post-title{font-size:18px}
  .post-excerpt{font-size:14px}
}