:root{
  --bg: #f8f7f4;
  --panel: #f8f7f4;
  --panel2: #ede9e2;
  --text: #1a1a18;
  --muted: #999;
  --border: rgba(0,0,0,.08);
  --shadow: 0 2px 12px rgba(0,0,0,.06);
  --radius: 14px;
  --radius2: 10px;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: var(--bg);
  color: var(--text);
}

a{ color: inherit; text-decoration: none; }
.hidden{ display:none !important; }

.topbar{
  position: sticky;
  top:0;
  z-index: 20;
  background: rgba(248,247,244,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar__inner{
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}
.brand__title{
  font-weight: 500;
  font-size: 16px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text);
}
.brand__sub{ color: var(--muted); font-size: 11px; margin-top: 3px; letter-spacing: .5px; }
.nav{ display:flex; gap:10px; }
.nav__link{
  padding: 7px 16px;
  border: 1px solid rgba(0,0,0,.15);
  background: transparent;
  border-radius: 999px;
  font-size: 12px;
  color: #555;
  letter-spacing: .5px;
}
.nav__link:hover{ background: rgba(0,0,0,.04); }

.container{
  max-width: 1100px;
  margin: 0 auto;
  padding: 22px 24px 60px;
}

.toolbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin: 14px 0 12px;
}
.toolbar__right{
  display: flex;
  gap: 8px;
  align-items: center;
}

.status{ color: var(--muted); font-size: 12px; letter-spacing: .3px; }

.btn{
  border: 1px solid rgba(0,0,0,.12);
  background: transparent;
  color: #666;
  padding: 7px 16px;
  border-radius: 999px;
  cursor:pointer;
  font-size: 12px;
  letter-spacing: .3px;
  transition: background .15s ease, border-color .15s ease;
}
.btn:hover{ background: rgba(0,0,0,.04); border-color: rgba(0,0,0,.18); }
.btn:active{ background: rgba(0,0,0,.07); }
.btn--primary{
  background: #1a1a18;
  border-color: #1a1a18;
  color: #f8f7f4;
}
.btn--primary:hover{ background: #333; border-color: #333; }
.btn--ghost{ background: transparent; }
.btn--danger{
  background: transparent;
  border-color: rgba(180,50,50,.3);
  color: #a33;
}
.btn--danger:hover{ background: rgba(180,50,50,.06); }

.grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 700px){
  .grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 420px){
  .grid{ grid-template-columns: 1fr; }
}
.tile{
  overflow: hidden;
  background: var(--panel2);
  position: relative;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(0,0,0,.13), 0 1px 4px rgba(0,0,0,.07);
}
.tile__img{
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: contain;
  background: #e8e4dc;
  display: block;
  filter: grayscale(25%) sepia(0%) contrast(1.05);
  transition: filter .2s ease, opacity .2s ease;
}
.tile:hover .tile__img{ filter: grayscale(0%) sepia(0%) contrast(1); opacity: .88; }
.tile__meta{
  padding: 8px 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  color: var(--muted);
  background: var(--bg);
  border-top: 1px solid rgba(0,0,0,.05);
  letter-spacing: .3px;
}

/* Manage mode */
.tile__check{
  display: none;
  position: absolute;
  top: 10px;
  left: 10px;
  width: 22px;
  height: 22px;
  cursor: pointer;
  accent-color: #1a1a18;
  z-index: 2;
}
.grid--manage .tile__check{ display: block; }
.tile--selected{ outline: 2px solid #1a1a18; outline-offset: -2px; }
.grid--manage .tile__img{ opacity: 0.7; transition: opacity .15s ease; }
.grid--manage .tile--selected .tile__img{ opacity: 1; }

.loadmore{
  margin-top: 24px;
  display:flex;
  justify-content:center;
}

.lightbox{
  position:fixed;
  inset:0;
  z-index: 50;
  display:flex;
  align-items:center;
  justify-content:center;
}
.lightbox__backdrop{
  position:absolute;
  inset:0;
  background: rgba(248,247,244,.88);
  backdrop-filter: blur(8px);
}
.lightbox__panel{
  position:relative;
  width:min(900px, calc(100vw - 24px));
  max-height: calc(100vh - 24px);
  background: #fff;
  border: 1px solid rgba(0,0,0,.1);
  border-radius: var(--radius);
  box-shadow: 0 8px 40px rgba(0,0,0,.12);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.lightbox__close{
  position:absolute;
  top: 10px;
  right: 10px;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,.12);
  background: rgba(255,255,255,.9);
  color: #555;
  cursor:pointer;
  font-size: 14px;
}
.lightbox__img{
  width:100%;
  height: auto;
  max-height: calc(100vh - 100px);
  object-fit: contain;
  background: #f4f2ee;
}
.lightbox__footer{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid rgba(0,0,0,.07);
  gap: 12px;
  background: #fff;
}
.lightbox__meta{
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .3px;
}

.card{
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.card__title{ margin:0; font-size: 17px; font-weight: 500; color: var(--text); }
.card__sub{ margin: 8px 0 0; color: var(--muted); font-size: 13px; }

.upload{ margin-top: 16px; }
.upload__file{
  width:100%;
  padding: 12px;
  border-radius: var(--radius2);
  border: 1px dashed rgba(0,0,0,.2);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
}
.upload__actions{
  display:flex;
  gap: 10px;
  margin-top: 12px;
  align-items:center;
}
.preview{
  margin-top: 14px;
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
}
.preview__img{
  width:100%;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius2);
  border: 1px solid var(--border);
}

.gate{
  position:fixed;
  inset:0;
  z-index:60;
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 18px;
  background: rgba(248,247,244,.88);
  backdrop-filter: blur(10px);
}
.gate__card{
  width: min(480px, 100%);
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 8px 40px rgba(0,0,0,.1);
}
.gate__title{ margin:0; font-size: 17px; font-weight: 500; }
.gate__text{ margin: 10px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.gate__actions{ display:flex; gap: 10px; margin-top: 18px; }
.gate__remember{ display:flex; gap: 10px; align-items:center; margin-top: 14px; color: var(--muted); font-size: 12px; }