/* =====================================================
   FreeWallHub — design system v2 (mobile-first)
   ===================================================== */
:root{
  /* surfaces — calm, layered dark */
  --bg:#0a0b0f;
  --bg-2:#10121a;
  --card:#161823;
  --card-2:#1d1f2c;
  --line:rgba(255,255,255,.06);
  --line-strong:rgba(255,255,255,.12);

  /* text */
  --text:#e9eaf0;
  --muted:#9097a6;
  --muted-2:#5f6675;

  /* brand — single muted indigo accent */
  --brand-1:#5b6cff;        /* primary */
  --brand-2:#7d6dff;        /* hover / lighter */
  --brand-soft:rgba(91,108,255,.14);
  --brand-grad:linear-gradient(135deg,#5b6cff 0%,#7d6dff 100%);
  --brand-grad-soft:linear-gradient(180deg,rgba(91,108,255,.10),rgba(125,109,255,.04));

  /* state */
  --ok:#2dd4a4;
  --danger:#ef4f4f;

  /* shape */
  --r-sm:10px;
  --r:14px;
  --r-lg:20px;
  --r-xl:24px;

  /* shadow */
  --shadow-sm:0 4px 12px rgba(0,0,0,.30);
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --shadow-glow:0 8px 28px rgba(91,108,255,.22);

  --safe-bottom:env(safe-area-inset-bottom,0);
  --safe-top:env(safe-area-inset-top,0);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-text-size-adjust:100%;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--text);text-decoration:none}
a:hover{color:#cfd2ff}
button{font:inherit;color:inherit;cursor:pointer}

/* App shell */
.app{
  max-width:480px;margin:0 auto;min-height:100vh;
  background:var(--bg);position:relative;
  padding-bottom:calc(96px + var(--safe-bottom));
}

/* ============================================================
   TOP BAR — calm dark header with a single accent
   ============================================================ */
.topbar{
  position:sticky;top:0;z-index:30;
  display:flex;align-items:center;gap:8px;
  padding:calc(10px + var(--safe-top)) 14px 12px;
  background:rgba(16,18,26,.85);
  backdrop-filter:blur(16px) saturate(160%);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  border-bottom:1px solid var(--line);
}
.topbar .icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--card);
  border:1px solid var(--line);color:var(--text);
  transition:transform .15s ease,background .15s ease,border-color .15s ease;
}
.topbar .icon-btn:active{transform:scale(.92)}
.topbar .icon-btn:hover{background:var(--card-2);border-color:var(--line-strong)}

.brand{
  flex:1;display:flex;align-items:center;justify-content:center;gap:8px;
  font-weight:800;font-size:17px;color:var(--text);letter-spacing:.1px;
}
.brand .b-mark{
  width:24px;height:24px;border-radius:8px;
  background:var(--brand-grad);
  display:grid;place-items:center;color:#fff;
  font-weight:900;font-size:12px;
  box-shadow:0 4px 12px rgba(91,108,255,.35);
}

/* ============================================================
   SEARCH OVERLAY
   ============================================================ */
.search-overlay{
  position:fixed;inset:0;z-index:80;
  background:rgba(11,12,16,.78);
  backdrop-filter:blur(8px);
  display:flex;align-items:flex-start;justify-content:center;
  padding:14px;
  opacity:0;pointer-events:none;
  transition:opacity .18s ease;
}
.search-overlay.is-open{opacity:1;pointer-events:auto}
.search-card{
  width:100%;max-width:460px;
  background:var(--card);border:1px solid var(--line-strong);
  border-radius:var(--r-lg);padding:14px;
  box-shadow:var(--shadow-glow);
  margin-top:calc(60px + var(--safe-top));
}
.search-card .row{display:flex;gap:8px;align-items:center}
.search-card input{
  flex:1;border:0;outline:0;background:var(--bg-2);
  border-radius:var(--r);padding:14px 16px;font-size:16px;color:var(--text);
}
.search-card input::placeholder{color:var(--muted)}
.search-card .close{
  width:42px;height:42px;border-radius:50%;background:var(--bg-2);
  border:1px solid var(--line);color:var(--text);font-size:18px;
}
.search-suggest{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px}
.search-suggest a{
  font-size:13px;padding:6px 10px;background:var(--card-2);
  border:1px solid var(--line);border-radius:999px;color:var(--muted);
}
.search-suggest a:hover{color:var(--text);border-color:var(--brand-1)}

/* ============================================================
   DRAWER (left slide-out)
   ============================================================ */
.drawer-backdrop{
  position:fixed;inset:0;z-index:60;
  background:rgba(0,0,0,.55);backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;transition:opacity .2s ease;
}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto}

.drawer{
  position:fixed;top:0;left:0;bottom:0;z-index:70;
  width:84%;max-width:320px;
  background:linear-gradient(180deg,var(--card-2),var(--card));
  border-right:1px solid var(--line);
  transform:translateX(-105%);transition:transform .25s cubic-bezier(.2,.8,.2,1);
  display:flex;flex-direction:column;overflow-y:auto;
  padding:calc(20px + var(--safe-top)) 0 calc(16px + var(--safe-bottom));
}
.drawer.is-open{transform:translateX(0)}
.drawer .d-header{
  padding:0 20px 16px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px;
}
.drawer .d-logo{
  width:42px;height:42px;border-radius:12px;
  background:var(--brand-1);display:grid;place-items:center;
  color:#fff;font-weight:900;
  box-shadow:0 6px 18px rgba(91,108,255,.35);
}
.drawer .d-title{font-weight:800;font-size:16px;line-height:1.1}
.drawer .d-tag{font-size:12px;color:var(--muted)}

.drawer .d-section{padding:10px 8px}
.drawer .d-section h4{
  font-size:11px;text-transform:uppercase;letter-spacing:1.4px;
  color:var(--muted-2);margin:8px 12px 4px;font-weight:700;
}
.drawer-link{
  display:flex;align-items:center;gap:14px;
  padding:12px 14px;margin:2px 6px;border-radius:12px;
  color:var(--text);font-size:15px;
}
.drawer-link:hover,.drawer-link.is-active{background:var(--card-2);color:#fff}
.drawer-link .ico{width:22px;text-align:center;font-size:18px;color:var(--muted)}
.drawer-link.is-active .ico{color:var(--brand-1)}
.drawer-link.is-active{background:var(--brand-soft)}

/* ============================================================
   CONTENT
   ============================================================ */
.content{padding:14px 14px 4px}
.section{margin:18px 0}
.section h2{font-size:18px;margin:0 0 10px;font-weight:800;letter-spacing:.2px}
.section .h2-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.section .h2-row a{font-size:13px;color:var(--muted)}
.section .h2-row a:hover{color:var(--brand-1)}
.muted{color:var(--muted)}

/* ============================================================
   HERO — quiet depth, single subtle accent
   ============================================================ */
.hero{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:22px 20px 24px;color:var(--text);
  background:linear-gradient(180deg,#1c1f30 0%,#15172a 100%);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  margin-bottom:18px;
}
.hero::before{
  content:"";position:absolute;top:-60px;right:-60px;
  width:220px;height:220px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(91,108,255,.45),transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-80px;left:-40px;
  width:200px;height:200px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(125,109,255,.25),transparent 70%);
  pointer-events:none;
}
.hero h1{margin:0 0 6px;font-size:22px;line-height:1.22;font-weight:800;letter-spacing:.2px;position:relative}
.hero p{margin:0 0 14px;color:var(--muted);font-size:13px;position:relative}
.hero .cta-row{display:flex;gap:8px;flex-wrap:wrap;position:relative;z-index:1}
.hero .cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 16px;border-radius:999px;
  background:var(--brand-1);color:#fff;font-weight:700;font-size:13px;
  box-shadow:var(--shadow-glow);
}
.hero .cta:hover{background:var(--brand-2);color:#fff}
.hero .cta.ghost{background:rgba(255,255,255,.05);color:var(--text);box-shadow:none;border:1px solid var(--line-strong)}
.hero .cta.ghost:hover{background:rgba(255,255,255,.08)}

/* ============================================================
   CHIPS
   ============================================================ */
.chips{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 10px;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;padding:8px 14px;border-radius:999px;
  background:var(--card);border:1px solid var(--line);
  color:var(--text);font-size:13px;font-weight:600;white-space:nowrap;
}
.chip.is-active{background:var(--brand-1);border-color:transparent;color:#fff}

/* ============================================================
   FILTERS
   ============================================================ */
.filters{
  display:flex;gap:6px;margin:6px 0 14px;
  background:var(--card);border:1px solid var(--line);
  padding:4px;border-radius:999px;
}
.filters a{
  flex:1;text-align:center;padding:8px 10px;border-radius:999px;
  color:var(--muted);font-weight:600;font-size:13px;
}
.filters a.is-active{background:var(--brand-1);color:#fff;box-shadow:0 4px 14px rgba(91,108,255,.4)}

/* ============================================================
   WALLPAPER GRID
   ============================================================ */
.wp-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(min-width:380px){.wp-grid{gap:12px}}
.wp{
  position:relative;display:block;
  border-radius:var(--r);overflow:hidden;
  background:var(--card);aspect-ratio:9/16;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.wp:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.wp img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.wp:hover img{transform:scale(1.04)}
.wp .wp-label{
  position:absolute;left:0;right:0;bottom:0;padding:10px 12px 12px;
  font-size:13px;font-weight:600;color:#fff;
  background:linear-gradient(180deg,rgba(0,0,0,0) 0%,rgba(0,0,0,.55) 50%,rgba(0,0,0,.85) 100%);
}
.wp .fav{
  position:absolute;top:8px;right:8px;width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;background:rgba(0,0,0,.45);color:#fff;border:0;
  backdrop-filter:blur(6px);font-size:14px;
}
.wp .fav.is-fav{background:var(--brand-1);box-shadow:0 4px 14px rgba(91,108,255,.5)}

/* ============================================================
   CATEGORY CARDS (categories index)
   ============================================================ */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.cat-card{
  position:relative;display:block;border-radius:var(--r);overflow:hidden;
  aspect-ratio:4/3;background:var(--card);box-shadow:var(--shadow-sm);
}
.cat-card img{width:100%;height:100%;object-fit:cover;opacity:.55;transition:.25s}
.cat-card:hover img{opacity:.75;transform:scale(1.05)}
.cat-card .ov{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,11,15,0) 0%,rgba(10,11,15,.4) 50%,rgba(10,11,15,.85) 100%);
  display:flex;align-items:flex-end;padding:12px;
}
.cat-card h3{margin:0;font-size:16px;color:#fff;font-weight:800;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.cat-card .count{
  position:absolute;top:8px;right:8px;font-size:11px;font-weight:700;
  background:rgba(0,0,0,.45);padding:4px 8px;border-radius:999px;color:#fff;
  backdrop-filter:blur(4px);
}

/* ============================================================
   PAGINATION — compact, dark-friendly
   ============================================================ */
.pagination{
  display:flex;justify-content:center;align-items:center;
  gap:4px;margin:20px 0 6px;flex-wrap:wrap;
}
.pagination a,.pagination > span{
  min-width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  padding:0 10px;border-radius:10px;
  background:var(--card);border:1px solid var(--line);
  color:var(--text);font-weight:600;font-size:14px;
  transition:background .15s ease,border-color .15s ease,color .15s ease;
}
.pagination a:hover{background:var(--card-2);border-color:var(--line-strong);color:#fff}
.pagination .is-active{
  background:var(--brand-1);border-color:transparent;color:#fff;
  box-shadow:0 4px 14px rgba(91,108,255,.35);
}
.pagination .pg-arrow{font-size:18px;line-height:1;font-weight:700}
.pagination .pg-arrow.is-disabled{opacity:.35;background:transparent;border-color:var(--line);cursor:default}
.pagination .pg-ellipsis{
  background:transparent;border:0;color:var(--muted-2);
  font-weight:700;letter-spacing:1px;min-width:24px;
}

/* ============================================================
   WALLPAPER DETAIL
   ============================================================ */
.wp-detail .preview{
  border-radius:var(--r-lg);overflow:hidden;background:#000;box-shadow:var(--shadow);
}
.wp-detail .preview img{width:100%;height:auto;max-height:75vh;object-fit:contain;background:#000}
.wp-meta{margin-top:14px}
.wp-meta h1{margin:0 0 4px;font-size:22px;font-weight:800}
.wp-meta .meta-row{color:var(--muted);font-size:13px;display:flex;flex-wrap:wrap;gap:10px}
.tag-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tag-list a{
  padding:6px 11px;border-radius:999px;
  background:var(--card);border:1px solid var(--line);
  font-size:12px;color:var(--text);
}
.tag-list a:hover{border-color:var(--brand-1);color:#fff}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 16px;border-radius:14px;border:0;
  font-weight:700;font-size:14px;
  background:var(--brand-1);color:#fff;width:100%;
  box-shadow:var(--shadow-glow);
  transition:transform .12s ease,background .15s ease;
}
.btn:hover{background:var(--brand-2);color:#fff}
.btn:active{transform:scale(.98)}
.btn.btn-ghost{background:var(--card);color:var(--text);box-shadow:none;border:1px solid var(--line)}
.btn.btn-ghost:hover{background:var(--card-2);border-color:var(--line-strong)}
.btn.btn-danger{background:var(--danger);box-shadow:none}
.btn-row{display:flex;gap:8px;margin-top:14px}

/* ============================================================
   TOOLS
   ============================================================ */
.tools-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.tool-card{
  position:relative;display:block;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:16px;color:var(--text);
  transition:transform .15s ease,border-color .15s ease;
  overflow:hidden;
}
.tool-card::before{
  content:"";position:absolute;top:-30%;right:-30%;width:120px;height:120px;border-radius:50%;
  background:var(--brand-grad-soft);filter:blur(20px);opacity:.7;
}
.tool-card:hover{transform:translateY(-2px);border-color:var(--brand-1)}
.tool-card .ico{
  position:relative;
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-1);color:#fff;font-size:20px;margin-bottom:10px;
  box-shadow:0 6px 18px rgba(91,108,255,.35);
}
.tool-card h3{margin:0 0 4px;font-size:15px;font-weight:800;position:relative}
.tool-card p{margin:0;color:var(--muted);font-size:12px;line-height:1.5;position:relative}

/* ============================================================
   TOOL UI BLOCKS
   ============================================================ */
.tool-ui{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:16px;margin-top:10px;
}
.drop{
  border:2px dashed var(--line-strong);border-radius:var(--r);padding:32px 20px;
  text-align:center;color:var(--muted);background:var(--bg-2);
  cursor:pointer;transition:.2s;
}
.drop.is-over{border-color:var(--brand-1);color:var(--text);background:rgba(124,92,255,.08)}
.field{margin:12px 0}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.field input[type=number],.field input[type=text],.field select,.field input[type=email],.field textarea{
  width:100%;padding:12px 14px;background:var(--bg-2);
  border:1px solid var(--line);border-radius:12px;color:var(--text);outline:0;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-1)}
.row{display:flex;gap:8px}
.row > *{flex:1}

/* ============================================================
   FLOATING BOTTOM NAV (pill)
   ============================================================ */
.bottom-nav{
  position:fixed;left:50%;transform:translateX(-50%);
  bottom:calc(14px + var(--safe-bottom));z-index:40;
  width:min(94vw,440px);
  display:grid;grid-template-columns:repeat(4,1fr);
  background:rgba(20,22,28,.88);
  border:1px solid var(--line-strong);
  border-radius:999px;
  padding:6px;
  backdrop-filter:blur(20px) saturate(180%);
  box-shadow:0 12px 40px rgba(0,0,0,.5);
}
.nav-item{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:8px 4px;border-radius:999px;
  color:var(--muted);font-size:11px;font-weight:600;
  transition:background .2s ease,color .2s ease;
}
.nav-item span{font-size:18px;line-height:1}
.nav-item b{font-weight:700;font-size:11px}
.nav-item.is-active{
  color:#fff;
  background:var(--brand-1);
  box-shadow:0 6px 18px rgba(91,108,255,.4);
}

/* ============================================================
   ARTICLES / STATIC
   ============================================================ */
.article{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:18px;line-height:1.7;
}
.article h1{margin-top:0;font-size:22px;font-weight:800}
.article h2{font-size:17px;margin-top:18px;font-weight:800}
.article p{color:#dadce5}

/* ============================================================
   EMPTY / TOAST
   ============================================================ */
.empty{padding:36px 14px;text-align:center;color:var(--muted)}
.empty .em-ico{font-size:34px;margin-bottom:6px}
.toast{
  position:fixed;left:50%;bottom:104px;transform:translateX(-50%) translateY(8px);
  background:var(--card-2);border:1px solid var(--line-strong);color:var(--text);
  padding:11px 16px;border-radius:14px;z-index:90;opacity:0;transition:.22s;pointer-events:none;
  box-shadow:var(--shadow);font-size:13px;font-weight:600;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ============================================================
   FOOTER (small static, sits above nav)
   ============================================================ */
.site-footer{padding:18px 14px 6px;text-align:center;color:var(--muted);font-size:12px}

/* ============================================================
   ADMIN — kept light-weight
   ============================================================ */
.admin-shell{max-width:1100px;margin:0 auto;padding:16px;color:var(--text)}
.admin-shell .card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;margin:12px 0}
.admin-shell table{width:100%;border-collapse:collapse}
.admin-shell th,.admin-shell td{padding:10px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.admin-shell .topnav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.admin-shell .topnav a{padding:8px 12px;background:var(--card);border:1px solid var(--line);border-radius:10px;color:var(--text)}
.admin-shell .topnav a.is-active{background:var(--brand-1);border-color:transparent;color:#fff}
.admin-shell .form-grid{display:grid;grid-template-columns:1fr;gap:10px}
@media(min-width:720px){.admin-shell .form-grid{grid-template-columns:1fr 1fr}}
.admin-shell label{font-size:13px;color:var(--muted)}
.admin-shell input,.admin-shell select,.admin-shell textarea{
  width:100%;padding:10px;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;color:var(--text)}
.admin-shell .stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(min-width:720px){.admin-shell .stats{grid-template-columns:repeat(4,1fr)}}
.admin-shell .stat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px}
.admin-shell .stat b{display:block;font-size:24px;margin-top:4px;color:var(--brand-2)}