:root{
  --bg: #0b1020;
  --panel: rgba(255,255,255,.08);
  --panel-2: rgba(255,255,255,.12);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.65);
  --accent: #46f2a6;
  --danger: #ff5c7a;
  --shadow: 0 14px 40px rgba(0,0,0,.35);
  --radius: 18px;
  --maxw: 960px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% 0%, rgba(70,242,166,.18), transparent 55%),
    radial-gradient(900px 520px at 90% 10%, rgba(255,92,122,.12), transparent 60%),
    linear-gradient(180deg, #070a14, var(--bg));
}

.app{ min-height:100%; }
.topbar{
  position: sticky;
  top:0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(7,10,20,.65);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.topbar > *{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 16px;
}
.brand{
  font-weight: 800;
  letter-spacing: .2px;
}
.topnav{
  display:flex;
  gap: 12px;
  margin-top: 10px;
}
.topnav a{
  color: var(--text);
  text-decoration:none;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255,255,255,.06);
}
.topnav a:hover{ background: rgba(255,255,255,.10); }
.topnav a.danger{ color: #ffe5ea; background: rgba(255,92,122,.15); }
.content{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 16px 44px;
}
.card{
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.card h1{
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.2;
}
.muted{ color: var(--muted); margin: 0 0 14px; }
.alert{
  background: rgba(255,92,122,.14);
  border: 1px solid rgba(255,92,122,.30);
  color: #ffe5ea;
  padding: 12px 12px;
  border-radius: 14px;
  margin: 0 0 14px;
}
.form{
  display:grid;
  gap: 12px;
  margin-top: 10px;
}
label span{
  display:block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}
input{
  width:100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.20);
  color: var(--text);
  outline: none;
}
input:focus{
  border-color: rgba(70,242,166,.45);
  box-shadow: 0 0 0 4px rgba(70,242,166,.10);
}
button{
  appearance: none;
  border: 0;
  border-radius: 14px;
  padding: 12px 14px;
  font-weight: 800;
  color: #062515;
  background: linear-gradient(135deg, rgba(70,242,166,1), rgba(70,242,166,.80));
  cursor: pointer;
}
button:hover{ filter: brightness(1.03); }
.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}
.tile{
  display:block;
  text-decoration:none;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 16px;
  padding: 14px;
}
.tile-title{ font-weight: 800; }
.tile-sub{ color: var(--muted); margin-top: 6px; font-size: 13px; }

@media (min-width: 720px){
  .topbar > *{ padding: 18px 18px; }
  .content{ padding: 22px 18px 60px; }
  .grid{ grid-template-columns: 1fr 1fr; }
  .card h1{ font-size: 26px; }
}

.media-thumb{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.20);
  padding: 4px;
  text-decoration:none;
}
.media-thumb img{
  display:block;
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 12px;
}
.lightbox{
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(0,0,0,.72);
  z-index: 50;
}
.lightbox:target{ display:flex; }
.lightbox-close{
  position: absolute;
  inset: 0;
  display:block;
}
.lightbox-content{
  position: relative;
  z-index: 1;
  background: rgba(11,16,32,.92);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 12px;
  max-width: min(980px, 96vw);
}
.lightbox-content img{
  display:block;
  max-width: 92vw;
  max-height: 78vh;
  width: auto;
  height: auto;
  border-radius: 14px;
}
.lightbox-caption{
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
}