/* ==========================================================================
   JustMe RemoveBG — stylesheet
   Dark, responsive, no framework. Layout: single column on mobile,
   viewer + sidebar grid from 960px up.
   ========================================================================== */

:root {
  --bg:        #070b16;
  --bg-soft:   #0d1424;
  --panel:     #111a2e;
  --panel-2:   #16203a;
  --line:      #22304d;
  --line-soft: #1a2540;
  --text:      #e8eefc;
  --text-dim:  #93a3c4;
  --text-mute: #6d7d9e;
  --accent:    #4f8cff;
  --accent-2:  #7c5cff;
  --ok:        #2fbf71;
  --warn:      #f0a92c;
  --err:       #ef4b5c;
  --radius:    14px;
  --radius-sm: 9px;
  --shadow:    0 18px 44px rgba(0, 0, 0, .48);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 620px at 12% -12%, #16234a 0%, transparent 62%),
    radial-gradient(900px 520px at 88% 4%, #1d1746 0%, transparent 58%),
    var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 3rem;
}

.wrap { width: min(1320px, 100% - 2rem); margin-inline: auto; }
.hidden { display: none !important; }
.mono { font-family: var(--mono); }
.small { font-size: .82rem; }
.xsmall { font-size: .74rem; }
.muted { color: var(--text-dim); }

/* ------------------------------- header --------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(7, 11, 22, .82);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--text); font-weight: 700; letter-spacing: -.01em; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; flex: none;
  /* Scissors brand mark — matches the favicon (✂️). */
  font-size: 19px; line-height: 1;
  font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", sans-serif;
  user-select: none;
}
.brand-text { font-size: 1.02rem; }
.brand-accent { color: var(--accent); }
.header-nav { display: flex; align-items: center; gap: .7rem; }

.pill {
  display: inline-flex; align-items: center; gap: .42rem;
  padding: .28rem .62rem; border-radius: 999px; font-size: .76rem;
  border: 1px solid var(--line); background: var(--panel); color: var(--text-dim);
}
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--text-mute); flex: none; }
.pill-ok .dot { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.pill-err .dot { background: var(--err); box-shadow: 0 0 8px var(--err); }

.link-btn {
  color: var(--text-dim); text-decoration: none; font-size: .85rem;
  padding: .34rem .66rem; border-radius: var(--radius-sm); border: 1px solid transparent;
}
.link-btn:hover { color: var(--text); background: var(--panel); border-color: var(--line); }

/* -------------------------------- hero ---------------------------------- */
.hero { text-align: center; padding: 2.6rem 0 1.4rem; }
.hero h1 { font-size: clamp(1.7rem, 4.4vw, 2.7rem); line-height: 1.18; margin: 0 0 .6rem; letter-spacing: -.02em; }
.hero h1 em { font-style: normal; background: linear-gradient(96deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.lede { max-width: 660px; margin: 0 auto 1.7rem; color: var(--text-dim); }

.dropzone {
  position: relative; max-width: 740px; margin: 0 auto;
  padding: 2.5rem 1.5rem; border-radius: var(--radius);
  border: 1.6px dashed var(--line); background: rgba(17, 26, 46, .55);
  cursor: pointer; transition: border-color .16s, background .16s, transform .16s;
  outline: none;
}
.dropzone:hover, .dropzone:focus-visible { border-color: var(--accent); background: rgba(79, 140, 255, .07); }
.dropzone.dragover { border-color: var(--accent); background: rgba(79, 140, 255, .14); transform: scale(1.008); }
.dz-art { color: var(--accent); margin-bottom: .7rem; }
.dz-title { margin: 0; font-weight: 620; font-size: 1.03rem; }
.dz-sub { margin: .34rem 0 .8rem; color: var(--text-dim); font-size: .86rem; }
.dz-link { color: var(--accent); text-decoration: underline; }
.dz-meta { margin: 0; color: var(--text-mute); font-size: .78rem; }
kbd {
  font-family: var(--mono); font-size: .72rem; padding: .08em .38em;
  border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px;
  background: var(--panel-2); color: var(--text-dim);
}

.hero-options {
  max-width: 740px; margin: 1.2rem auto 0;
  display: flex; flex-wrap: wrap; gap: 1rem; align-items: end; justify-content: center;
}

/* ------------------------------- fields --------------------------------- */
.field { display: flex; flex-direction: column; gap: .34rem; text-align: left; flex: 1 1 220px; min-width: 0; }
.field-label { font-size: .79rem; color: var(--text-dim); display: flex; justify-content: space-between; gap: .5rem; }
.field-check { flex-direction: row; align-items: center; gap: .5rem; flex: 1 1 260px; }
.field-check input { width: 17px; height: 17px; accent-color: var(--accent); flex: none; }
.field-check small { color: var(--text-mute); }

.input, .input-file {
  width: 100%; padding: .56rem .68rem; border-radius: var(--radius-sm);
  border: 1px solid var(--line); background: var(--panel-2); color: var(--text);
  font-size: .88rem; font-family: inherit;
}
.input:focus { outline: 2px solid rgba(79, 140, 255, .5); outline-offset: 1px; border-color: var(--accent); }
.input-file { padding: .42rem; font-size: .8rem; }
input[type="range"] { width: 100%; accent-color: var(--accent); }

/* ------------------------------- buttons -------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .58rem .95rem; border-radius: var(--radius-sm); border: 1px solid var(--line);
  background: var(--panel-2); color: var(--text); font: inherit; font-size: .88rem;
  font-weight: 560; cursor: pointer; transition: background .14s, border-color .14s, opacity .14s;
}
.btn:hover:not(:disabled) { background: #1d2a49; border-color: #2e3f63; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); border-color: transparent; color: #fff;
}
.btn-primary:hover:not(:disabled) { filter: brightness(1.09); background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; }
.btn-row { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .7rem; }
.btn-row .btn { flex: 1 1 auto; }

.icon-btn {
  width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2);
  color: var(--text); cursor: pointer; font-size: .95rem; line-height: 1; padding: 0;
}
.icon-btn:hover { background: #1d2a49; }

.segmented { display: inline-flex; gap: .2rem; padding: .2rem; border-radius: 10px; background: var(--panel-2); border: 1px solid var(--line); }
.segmented-full { display: flex; width: 100%; }
.segmented-full .seg { flex: 1; }
.seg {
  border: 0; background: transparent; color: var(--text-dim); cursor: pointer;
  padding: .36rem .72rem; border-radius: 7px; font: inherit; font-size: .82rem; font-weight: 540;
  white-space: nowrap;
}
.seg:hover { color: var(--text); }
.seg.active { background: var(--accent); color: #fff; }

/* ------------------------------- panels --------------------------------- */
.panel {
  background: var(--panel); border: 1px solid var(--line-soft);
  border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow);
}
.panel-error { border-color: rgba(239, 75, 92, .45); background: rgba(239, 75, 92, .07); margin-top: 1rem; }
.error-row { display: flex; gap: 1rem; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.error-actions { display: flex; gap: .5rem; flex: none; }
#errorTitle { color: #ffb9c1; display: block; margin-bottom: .16rem; }

/* ------------------------------ progress -------------------------------- */
#progressSection { margin-top: 1.2rem; }
.progress-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .55rem; font-size: .88rem; font-weight: 560; }
.progress-bar { height: 7px; border-radius: 999px; background: var(--panel-2); overflow: hidden; }

.progress-fill {
  height: 100%; width: 0%; border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .22s ease;
}
.progress-fill.indeterminate {
  width: 38% !important;
  animation: slide 1.15s ease-in-out infinite;
  transition: none;
}
@keyframes slide { 0% { margin-left: -38%; } 100% { margin-left: 100%; } }

/* ------------------------------- result --------------------------------- */
#resultSection { margin-top: 1.4rem; }
.result-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 960px) { .result-grid { grid-template-columns: minmax(0, 1fr) 336px; } }

.viewer-panel { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.viewer-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: .6rem;
  padding: .6rem .7rem; border-bottom: 1px solid var(--line-soft); flex-wrap: wrap;
}
.toolbar-right { display: flex; align-items: center; gap: .34rem; }
.zoom-label { min-width: 46px; text-align: center; color: var(--text-dim); }

.stage {
  position: relative; min-height: 330px; height: min(58vh, 620px);
  background-color: #0a0f1c;
  background-image:
    linear-gradient(45deg, #141c30 25%, transparent 25%),
    linear-gradient(-45deg, #141c30 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #141c30 75%),
    linear-gradient(-45deg, transparent 75%, #141c30 75%);
  background-size: 22px 22px;
  background-position: 0 0, 0 11px, 11px -11px, -11px 0;
  overflow: hidden; touch-action: none; outline: none;
}
.stage.panning { cursor: grabbing; }
.stage.brushing { cursor: crosshair; }
.stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.stage-empty { position: absolute; inset: 0; display: grid; place-items: center; color: var(--text-mute); font-size: .9rem; }

.compare-wrap { position: absolute; inset: 0; }
.compare-layer { position: absolute; inset: 0; }
.compare-before { clip-path: inset(0 50% 0 0); }
.compare-handle {
  position: absolute; top: 0; bottom: 0; left: 50%; width: 3px; margin-left: -1.5px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2)); cursor: ew-resize; z-index: 3;
}
.compare-handle:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.compare-grip {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent); color: #fff; font-size: .8rem; box-shadow: 0 3px 12px rgba(0,0,0,.5);
  pointer-events: none;
}
.viewer-footer { display: flex; align-items: center; justify-content: space-between; gap: .6rem; padding: .5rem .8rem; border-top: 1px solid var(--line-soft); }
.badge {
  background: rgba(240, 169, 44, .16); color: var(--warn); border: 1px solid rgba(240, 169, 44, .4);
  padding: .08rem .48rem; border-radius: 999px; font-size: .72rem; font-weight: 600;
}

/* ------------------------------- sidebar -------------------------------- */
.side-panel { padding: 0; display: flex; flex-direction: column; }
.side-block { padding: 1rem; border-bottom: 1px solid var(--line-soft); }
.side-block:last-child { border-bottom: 0; }
.side-block-muted { background: rgba(0, 0, 0, .16); }
.side-title { margin: 0 0 .7rem; font-size: .74rem; text-transform: uppercase; letter-spacing: .085em; color: var(--text-mute); font-weight: 700; }
.brush-row { display: flex; flex-direction: column; gap: .6rem; margin-top: .8rem; }

.bg-presets { display: flex; flex-wrap: wrap; gap: .45rem; margin-bottom: .8rem; }
.bg-swatch {
  width: 42px; height: 34px; border-radius: 9px; border: 1.6px solid var(--line);
  cursor: pointer; padding: 0; position: relative; flex: none;
  background: var(--c, #fff); transition: border-color .14s, transform .14s;
}
.bg-swatch:hover { transform: translateY(-1px); border-color: #3a4d78; }
.bg-swatch.active { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(79, 140, 255, .3); }
.bg-swatch.is-transparent {
  background-color: #fff;
  background-image:
    linear-gradient(45deg, #bbb 25%, transparent 25%),
    linear-gradient(-45deg, #bbb 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #bbb 75%),
    linear-gradient(-45deg, transparent 75%, #bbb 75%);
  background-size: 12px 12px;
  background-position: 0 0, 0 6px, 6px -6px, -6px 0;
}
.bg-swatch-custom { display: grid; place-items: center; background: var(--panel-2); overflow: hidden; }
.bg-swatch-custom input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; }
.bg-swatch-custom span { font-size: .95rem; pointer-events: none; }

.meta-list { display: grid; grid-template-columns: auto 1fr; gap: .3rem .8rem; margin: 0 0 .9rem; font-size: .82rem; }
.meta-list dt { color: var(--text-mute); }
.meta-list dd { margin: 0; text-align: right; overflow-wrap: anywhere; }

/* -------------------------------- info ---------------------------------- */
.info-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; margin-top: 2.2rem; }
@media (min-width: 760px) { .info-grid { grid-template-columns: repeat(3, 1fr); } }
.info-card { background: rgba(17, 26, 46, .5); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 1rem 1.1rem; }
.info-card h4 { margin: 0 0 .4rem; font-size: .9rem; }
.info-card p { margin: 0; color: var(--text-dim); font-size: .84rem; }
.info-card a { color: var(--accent); }
code { font-family: var(--mono); font-size: .86em; background: var(--panel-2); padding: .08em .34em; border-radius: 5px; }

.site-footer { margin-top: 2.4rem; padding-top: 1.2rem; border-top: 1px solid var(--line-soft); color: var(--text-mute); font-size: .78rem; text-align: center; }

/* -------------------------------- toast --------------------------------- */
.toast {
  position: fixed; left: 50%; bottom: 1.4rem; transform: translateX(-50%);
  background: var(--panel-2); border: 1px solid var(--line); color: var(--text);
  padding: .6rem 1rem; border-radius: 999px; box-shadow: var(--shadow);
  font-size: .86rem; z-index: 90; max-width: min(90vw, 520px);
}
.toast.err { border-color: rgba(239, 75, 92, .6); color: #ffc3c9; }

/* ------------------------------- mobile --------------------------------- */
@media (max-width: 760px) {
  .hero { padding-top: 1.8rem; }
  .dropzone { padding: 1.9rem 1rem; }
  .stage { height: 50vh; min-height: 260px; }
  .viewer-toolbar { padding: .5rem; }
  .seg { padding: .34rem .55rem; font-size: .78rem; }
  .header-nav .link-btn { padding: .3rem .5rem; font-size: .8rem; }
  .brand-text { font-size: .95rem; }
  .meta-list dd { text-align: left; }
}
@media (max-width: 420px) {
  .wrap { width: calc(100% - 1.2rem); }
  .bg-swatch { width: 38px; height: 31px; }
}