/* HF Drive — iPhone-style mobile WebUI for a Hugging Face repo as storage */

:root{
  --blue:#0a84ff;
  --blue-strong:#0071e3;
  --red:#ff3b30;
  --green:#34c759;
  --orange:#ff9500;
  --tab-h:50px;
  --settings-row-h:40px;
  --r-card:12px;
  --r-lg:16px;
  --safe-t:env(safe-area-inset-top,0px);
  --safe-b:env(safe-area-inset-bottom,0px);
  --safe-l:env(safe-area-inset-left,0px);
  --safe-r:env(safe-area-inset-right,0px);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}

html[data-theme="light"]{
  --bg:#f2f2f7;
  --bg-elev:#ffffff;
  --card:#ffffff;
  --card-press:#ececf1;
  --group-bg:#ffffff;
  --text:#000000;
  --text-2:#8a8a8e;
  --text-3:#c7c7cc;
  --sep:rgba(60,60,67,.15);
  --sep-solid:#e3e3e8;
  --fill:rgba(118,118,128,.12);
  --fill-2:rgba(118,118,128,.20);
  --nav-bg:rgba(249,249,249,.82);
  --bar-bg:rgba(249,249,249,.90);
  --overlay:rgba(0,0,0,.34);
  --shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.06);
  --sheet-bg:#ffffff;
  --danger-bg:rgba(255,59,48,.12);
}

html[data-theme="dark"]{
  --bg:#000000;
  --bg-elev:#1c1c1e;
  --card:#1c1c1e;
  --card-press:#2c2c2e;
  --group-bg:#1c1c1e;
  --text:#ffffff;
  --text-2:#8e8e93;
  --text-3:#48484a;
  --sep:rgba(84,84,88,.55);
  --sep-solid:#2c2c2e;
  --fill:rgba(118,118,128,.24);
  --fill-2:rgba(118,118,128,.36);
  --nav-bg:rgba(28,28,30,.78);
  --bar-bg:rgba(28,28,30,.92);
  --overlay:rgba(0,0,0,.56);
  --shadow:0 1px 2px rgba(0,0,0,.5),0 12px 32px rgba(0,0,0,.55);
  --sheet-bg:#1c1c1e;
  --danger-bg:rgba(255,69,58,.18);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0;padding:0}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:17px;
  line-height:1.35;
  -webkit-font-smoothing:antialiased;
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  overflow:hidden;
  overscroll-behavior:none;
}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
input{-webkit-appearance:none;appearance:none}
input:focus{outline:none}
svg{display:block}
[hidden]{display:none !important}

.app{position:fixed;inset:0;overflow:hidden}
.screen{position:absolute;inset:0;display:none;flex-direction:column;background:var(--bg)}
.screen.is-active{display:flex}

/* ---------- scroll ---------- */
.scroll{
  flex:1 1 auto;overflow-y:auto;-webkit-overflow-scrolling:touch;
  overscroll-behavior-y:contain;
  padding:0 calc(16px + var(--safe-r)) calc(26px + var(--safe-b) + var(--tab-h)) calc(16px + var(--safe-l));
}
.large-title{
  margin:calc(14px + var(--safe-t)) 0 0 -2px;
  font-size:34px;line-height:1.18;font-weight:700;letter-spacing:-.02em;
}
.list-foot{margin-top:4px}

/* ---------- search ---------- */
.searchbar{
  display:flex;align-items:center;gap:6px;
  height:36px;margin:12px 0 14px;padding:0 10px;
  background:var(--fill);border-radius:10px;color:var(--text-2);
}
.searchbar input{
  flex:1;min-width:0;border:0;background:transparent;font-size:16px;color:var(--text);
}
.searchbar input::-webkit-search-cancel-button{-webkit-appearance:none}
.searchbar input::placeholder{color:var(--text-2)}

/* ---------- breadcrumbs ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:2px;margin:-4px 0 10px;font-size:14px}
.crumb{display:inline-flex;align-items:center;gap:2px;color:var(--blue);font-weight:500;max-width:46%;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.crumb-sep{color:var(--text-3);padding:0 1px}
.crumb.is-here{color:var(--text-2);font-weight:600}

/* ---------- list ---------- */
.list{list-style:none;margin:0 0 22px;padding:0;display:flex;flex-direction:column;gap:11px}
#screen-transfers #transferList{margin-top:12px}
.list li{background:var(--card);border-radius:var(--r-card);box-shadow:var(--shadow)}
.list li:empty{display:none}

.row{
  position:relative;display:flex;align-items:center;gap:11px;
  width:100%;min-height:58px;padding:9px 14px;
  background:var(--card);border-radius:var(--r-card);
  text-align:left;color:var(--text);
}
.row:active{background:var(--card-press)}
.row::after{
  content:"";position:absolute;left:64px;right:0;bottom:0;height:.5px;
  background:var(--sep);
}
.list li:last-child .row::after{display:none}
.row-chev{flex:none;color:var(--text-3);margin-left:-4px}
.row-main{flex:1;min-width:0}
.row-name{font-size:17px;font-weight:400;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-sub{margin-top:2px;font-size:13px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-size{flex:none;font-size:15px;color:var(--text-2);font-variant-numeric:tabular-nums}

/* ---------- file icons ---------- */
.ic{
  flex:none;width:42px;height:42px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:10px;font-weight:700;letter-spacing:.03em;text-transform:uppercase;
}
.ic-folder{background:linear-gradient(180deg,#54b9ff,#0a7cff)}
.ic-img{background:linear-gradient(180deg,#ffd166,#ff9f0a)}
.ic-vid{background:linear-gradient(180deg,#ff7a8a,#ff2d55)}
.ic-aud{background:linear-gradient(180deg,#ff9a6b,#ff5e3a)}
.ic-doc{background:linear-gradient(180deg,#66a6ff,#2f6bff)}
.ic-txt{background:linear-gradient(180deg,#b9b9c4,#8e8e93)}
.ic-code{background:linear-gradient(180deg,#7bd88f,#28a745)}
.ic-arc{background:linear-gradient(180deg,#c9a4ff,#8e5bff)}
.ic-bin{background:linear-gradient(180deg,#b0b6c0,#7c828c)}

/* ---------- empty ---------- */
.empty{padding:54px 26px 30px;text-align:center}
.empty-icon{font-size:46px;line-height:1;margin-bottom:12px;opacity:.85}
.empty-title{font-size:17px;font-weight:600}
.empty-sub{margin-top:6px;font-size:14px;color:var(--text-2)}
.empty .btn{margin-top:18px}
.list-note{margin-top:6px;font-size:13px;color:var(--text-2);text-align:center}

/* ---------- buttons ---------- */
.btn,.btn-primary{
  display:block;width:100%;height:46px;border-radius:11px;
  font-size:17px;font-weight:600;
}
.btn{background:var(--fill);color:var(--text)}
.btn:active{background:var(--fill-2)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:active{background:var(--blue-strong)}
.btn-danger{color:var(--red);background:var(--danger-bg)}
.btn-ghost{background:transparent;color:var(--blue)}
.card > .btn + .btn,.card > .btn-primary + .btn,.card > .btn + .btn-primary{margin-top:9px}

/* ---------- FAB ---------- */
.fab{
  position:absolute;z-index:35;
  right:calc(20px + var(--safe-r));
  bottom:calc(var(--tab-h) + var(--safe-b) + 20px);
  width:57px;height:57px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:#fff;background:var(--blue);
  box-shadow:0 6px 18px rgba(10,132,255,.42);
  transition:transform .15s ease,opacity .15s ease;
}
.fab:active{transform:scale(.92)}
.fab.is-hidden{opacity:0;pointer-events:none;transform:scale(.8)}

/* ---------- tabbar ---------- */
.tabbar{
  position:absolute;left:0;right:0;bottom:0;z-index:40;
  display:flex;align-items:stretch;
  height:calc(var(--tab-h) + var(--safe-b));
  padding-bottom:var(--safe-b);
  background:var(--bar-bg);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  box-shadow:0 -.5px 0 var(--sep);
}
.tabbar button{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  color:var(--text-2);font-size:10px;font-weight:500;
}
.tabbar button.is-on{color:var(--blue)}
.tabbar svg{width:25px;height:25px}
.tabbar button.is-transferring{color:var(--blue)}
.tabbar button.is-transferring .transfer-down{animation:transfer-down .8s ease-in-out infinite}
.tabbar button.is-transferring .transfer-up{animation:transfer-up .8s ease-in-out infinite}
.tabbar button.is-transferring > span{animation:transfer-pulse 1.1s ease-in-out infinite}
@keyframes transfer-down{0%,100%{transform:translateY(-1.5px)}50%{transform:translateY(1.5px)}}
@keyframes transfer-up{0%,100%{transform:translateY(1.5px)}50%{transform:translateY(-1.5px)}}
@keyframes transfer-pulse{0%,100%{opacity:.65}50%{opacity:1}}

/* ---------- groups ---------- */
.group{margin-top:26px}
.group:first-of-type{margin-top:18px}
.group-title{margin:0 0 7px 16px;font-size:13px;color:var(--text-2);text-transform:uppercase;letter-spacing:.02em}
.group-note{margin:7px 16px 0;font-size:13px;line-height:1.4;color:var(--text-2)}
.card{background:var(--group-bg);border-radius:var(--r-card);box-shadow:var(--shadow);padding:12px}
#screen-settings .card{padding:9px}

.field{display:flex;align-items:center;gap:8px;height:var(--settings-row-h);padding:0 4px;position:relative}
.field:not([hidden]) + .field::before{content:"";position:absolute;left:4px;right:4px;top:0;height:.5px;background:var(--sep)}
.field-label{flex:none;min-width:82px;font-size:16px;line-height:var(--settings-row-h);color:var(--text)}
.field input{
  flex:1;min-width:0;height:var(--settings-row-h);padding:0;border:0;background:transparent;
  font-size:16px;line-height:var(--settings-row-h);text-align:right;color:var(--text);
}
.field input::placeholder{color:var(--text-3)}
.field input[type="number"]{-moz-appearance:textfield}
.field-unit{flex:none;font-size:15px;color:var(--text-2)}
.field .segmented{margin-left:auto}

#repoVisibilityField > .field-label{
  display:flex;align-items:center;align-self:stretch;line-height:normal;
}
#repoVisibilityField > .segmented{
  align-self:center;align-items:center;
}
#repoVisibilityField .segmented button{
  align-self:center;line-height:1;
}

.segmented{display:inline-flex;background:var(--fill);border-radius:9px;padding:2px;gap:2px}
.segmented button{
  min-width:56px;height:26px;padding:0 12px;border-radius:7px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:500;color:var(--text);
}
.segmented button.is-on{background:var(--card);box-shadow:0 1px 3px rgba(0,0,0,.14)}

/* ---------- settings misc ---------- */
.status-row{display:flex;align-items:center;justify-content:space-between;gap:10px;height:var(--settings-row-h);font-size:14px}
.status-row + .status-row{border-top:.5px solid var(--sep)}
.status-key,.status-val{display:flex;align-items:center;align-self:stretch}
.status-key{color:var(--text-2);flex:none}
.status-val{justify-content:flex-end;color:var(--text);text-align:right;word-break:break-all}
.status-val.is-ok{color:var(--green);font-weight:600}
.status-val.is-bad{color:var(--red);font-weight:600}
.about{margin:34px 0 8px;text-align:center;font-size:12px;color:var(--text-2)}
#screen-settings .btn,#screen-settings .btn-primary{height:40px}
#screen-settings .card > .btn + .btn,
#screen-settings .card > .btn-primary + .btn,
#screen-settings .card > .btn + .btn-primary{margin-top:7px}

/* ---------- transfers ---------- */
.tr-row{display:flex;align-items:center;gap:11px;min-height:58px;padding:9px 14px}
.tr-main{flex:1;min-width:0}
.tr-name{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tr-meta{margin-top:3px;font-size:12px;color:var(--text-2)}
.tr-bar{margin-top:7px;height:4px;border-radius:2px;background:var(--fill);overflow:hidden}
.tr-bar > i{display:block;height:100%;width:0;border-radius:2px;background:var(--blue);transition:width .2s ease}
.tr-right{flex:none;display:flex;align-items:center;gap:6px}
.tr-pct{font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums;min-width:36px;text-align:right}
.tr-x{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--fill);color:var(--text-2);font-size:15px}
.tr-state{font-size:12px;font-weight:600}
.tr-state.is-ok{color:var(--green)}
.tr-state.is-bad{color:var(--red)}

/* ---------- floating progress ---------- */
.floating{
  position:absolute;z-index:38;left:14px;right:14px;
  bottom:calc(var(--tab-h) + var(--safe-b) + 88px);
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:14px;
  background:var(--nav-bg);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  box-shadow:var(--shadow);
  animation:rise .25s ease;
}
.floating-text{flex:1;min-width:0;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.floating-bar{flex:none;width:96px;height:5px;border-radius:3px;background:var(--fill);overflow:hidden}
.floating-bar > i{display:block;height:100%;width:0;background:var(--blue);transition:width .2s ease}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ---------- overlay / sheet ---------- */
.overlay{
  position:fixed;inset:0;z-index:100;display:flex;align-items:flex-end;justify-content:center;
  padding:0 8px calc(10px + var(--safe-b));
  background:var(--overlay);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
  animation:fade .2s ease;
}
@keyframes fade{from{opacity:0}to{opacity:1}}
.overlay.is-center{align-items:center;padding-bottom:calc(40px + var(--safe-b))}
.sheet{
  width:100%;max-width:560px;
  background:var(--sheet-bg);border-radius:14px;overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,.35);
  animation:rise .26s cubic-bezier(.22,1,.36,1);
}
.sheet-head{position:relative;padding:16px 18px 12px;text-align:center}
.sheet-head h2{margin:0;font-size:17px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sheet-head p{margin:4px 0 0;font-size:13px;color:var(--text-2);word-break:break-all}
.sheet-x{position:absolute;top:12px;right:12px;width:30px;height:30px;border-radius:50%;background:var(--fill);color:var(--text-2);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600}
.sheet-body{padding:0 12px 12px;max-height:64vh;overflow-y:auto}
.sheet-foot{padding:12px;border-top:.5px solid var(--sep)}
.sheet-title{margin:4px 6px 10px;font-size:13px;color:var(--text-2)}
.act{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  width:100%;min-height:50px;padding:0 14px;border-radius:10px;
  font-size:17px;color:var(--text);background:transparent;
}
.act:active{background:var(--fill)}
.act .act-left{display:flex;align-items:center;gap:12px;min-width:0}
.act .act-left svg{flex:none;color:var(--blue)}
.act.is-danger{color:var(--red)}
.act.is-danger .act-left svg{color:var(--red)}
.act-sub{font-size:13px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.act-wrap + .act-wrap{border-top:.5px solid var(--sep)}
.sheet-note{margin:10px 6px 0;font-size:13px;line-height:1.45;color:var(--text-2);text-align:center}

/* ---------- text field in sheet ---------- */
.input-line{
  display:flex;align-items:center;gap:8px;
  height:46px;margin:0 6px 10px;padding:0 12px;
  background:var(--fill);border-radius:10px;
}
.input-line input{flex:1;min-width:0;border:0;background:transparent;font-size:16px}

/* ---------- toast ---------- */
.toast{
  position:fixed;z-index:200;left:50%;transform:translateX(-50%);
  top:calc(14px + var(--safe-t));
  max-width:88vw;padding:10px 16px;border-radius:14px;
  background:rgba(30,30,32,.92);color:#fff;font-size:14px;
  box-shadow:0 8px 26px rgba(0,0,0,.3);
  animation:drop .22s ease;white-space:pre-wrap;text-align:center;
}
.toast.is-bad{background:rgba(200,38,28,.95)}
@keyframes drop{from{opacity:0;transform:translate(-50%,-10px)}to{opacity:1;transform:translate(-50%,0)}}

/* ---------- preview ---------- */
.preview-img{display:block;width:100%;max-height:56vh;object-fit:contain;border-radius:10px;background:var(--fill)}
.preview-text{
  margin:0;padding:12px;max-height:52vh;overflow:auto;
  background:var(--fill);border-radius:10px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12.5px;line-height:1.5;white-space:pre-wrap;word-break:break-word;
}
.preview-empty{padding:26px 10px;text-align:center;font-size:14px;color:var(--text-2)}

/* ---------- pull to refresh ---------- */
.ptr{
  height:0;overflow:hidden;display:flex;align-items:center;justify-content:center;
  color:var(--text-2);transition:height .2s ease;
}
.ptr span{font-size:12px;padding:6px 0}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}