/* ============================================================
   list-shuffler.css
   Tool-only styles - does NOT touch header, footer, or nav.
   Uses CSS custom properties from ChrysoKit's theme files
   with safe fallbacks for standalone use.
   ============================================================ */

/* ── Fallback tokens (ChrysoKit theme files override these) ── */
:root {
  --ls-brand:        var(--color-primary,        #D4A373);
  --ls-brand-dk:     var(--color-primary-dark,   #B5834F);
  --ls-brand-glow:   color-mix(in srgb, var(--ls-brand) 40%, transparent);

  --ls-bg:           var(--color-bg,             #FEFAE0);
  --ls-bg2:          var(--color-bg-secondary,   #F5EFC7);
  --ls-bg3:          var(--color-bg-tertiary,    #EDE7B8);
  --ls-surface:      var(--color-surface,        #FFFFFF);
  --ls-border:       var(--color-border,         #E2D9B3);
  --ls-border2:      var(--color-border-strong,  #CEC6A0);

  --ls-text:         var(--color-text,           #2C2A1E);
  --ls-text2:        var(--color-text-secondary, #6B6347);
  --ls-text3:        var(--color-text-tertiary,  #9C8E6E);

  --ls-success:      #3D9970;
  --ls-danger:       #D94F3D;
  --ls-danger-bg:    color-mix(in srgb, #D94F3D 10%, transparent);

  --ls-r:  10px;
  --ls-rl: 16px;
  --ls-rx: 20px;
  --ls-sh: 0 2px 10px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --ls-shl:0 6px 24px rgba(0,0,0,.11), 0 2px 6px rgba(0,0,0,.06);
  --ls-tr: .17s ease;
}

/* ── DARK MODE ─────────────────────────────────────── */
[data-theme="dark"] {
  --ls-danger:        #ef6b5a;
  --ls-danger-bg:     rgba(239, 107, 90, 0.16);
  --ls-success:       #5cbf8d;
  --ls-brand-glow:    color-mix(in srgb, var(--ls-brand) 32%, transparent);
}

/* ── Stats bar ──────────────────────────────────────────────── */
.ls-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: var(--ls-surface);
  border: 1px solid var(--ls-border);
  border-radius: var(--ls-rl);
  padding: .7rem 1.5rem;
  margin: 0 auto 1.75rem;
  max-width: 380px;
  box-shadow: var(--ls-sh);
}
.ls-stat {
  display: flex; flex-direction: column; align-items: center; gap: .08rem;
}
.ls-stat-val {
  font-size: 1.4rem; font-weight: 800;
  letter-spacing: -.04em; line-height: 1;
  color: var(--ls-brand-dk);
  transition: transform .15s;
}
.ls-stat-val.ls-pop { animation: lsPop .28s ease; }
@keyframes lsPop {
  0%   { transform: scale(1); }
  45%  { transform: scale(1.4); }
  100% { transform: scale(1); }
}
.ls-stat-lbl {
  font-size: .7rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .07em;
  color: var(--ls-text3);
}
.ls-stat-div {
  width: 1px; height: 28px;
  background: var(--ls-border);
}

/* ── Body grid ──────────────────────────────────────────────── */
.ls-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-bottom: 3rem;
}

/* ── Panels ─────────────────────────────────────────────────── */
.ls-panel {
  background: var(--ls-surface);
  border: 1px solid var(--ls-border);
  border-radius: var(--ls-rx);
  box-shadow: var(--ls-sh);
  overflow: hidden;
  transition: box-shadow var(--ls-tr);
}
.ls-panel:focus-within { box-shadow: var(--ls-shl); }

.ls-panel-hd {
  display: flex; align-items: center;
  justify-content: space-between;
  flex-wrap: wrap; gap: .5rem;
  padding: .9rem 1.2rem .75rem;
  border-bottom: 1px solid var(--ls-border);
}
.ls-panel-title {
  display: flex; align-items: center; gap: .45rem;
  font-size: .82rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .07em;
  color: var(--ls-text2);
  margin: 0;
}
.ls-panel-title i[data-lucide] {
  width: 15px; height: 15px; stroke-width: 2.5;
  color: var(--ls-brand);
}

/* Badge */
.ls-badge {
  font-size: .7rem; font-weight: 700;
  background: var(--ls-bg2);
  border: 1px solid var(--ls-border);
  border-radius: 999px;
  padding: .12rem .55rem;
  color: var(--ls-text2);
}

/* ── Textarea ────────────────────────────────────────────────── */
.ls-textarea {
  display: block;
  width: 100%;
  min-height: 180px;
  padding: .9rem 1.2rem;
  font: inherit;
  font-size: .9rem;
  line-height: 1.65;
  color: var(--ls-text);
  background: transparent;
  border: none;
  outline: none;
  resize: vertical;
}
.ls-textarea::placeholder { color: var(--ls-text3); }

/* ── Options section ─────────────────────────────────────────── */
.ls-options {
  border-top: 1px solid var(--ls-border);
  background: var(--ls-bg);
  padding: .8rem 1.2rem;
  display: flex; flex-direction: column; gap: .7rem;
}

.ls-opt-row {
  display: flex; align-items: center;
  flex-wrap: wrap; gap: .55rem;
}
.ls-opt-lbl {
  display: flex; align-items: center; gap: .35rem;
  font-size: .78rem; font-weight: 600;
  color: var(--ls-text2);
  min-width: 100px;
}
.ls-opt-lbl i[data-lucide] { width: 13px; height: 13px; stroke-width: 2.5; }

/* Segmented control */
.ls-seg {
  display: flex;
  border: 1px solid var(--ls-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--ls-bg2);
}
.ls-seg-btn {
  padding: .28rem .6rem;
  font: inherit; font-size: .76rem; font-weight: 600;
  background: transparent; border: none;
  color: var(--ls-text2);
  border-right: 1px solid var(--ls-border);
  cursor: pointer;
  transition: background var(--ls-tr), color var(--ls-tr);
}
.ls-seg-btn:last-child { border-right: none; }
.ls-seg-btn:hover  { background: var(--ls-surface); color: var(--ls-text); }
.ls-seg-btn.active { background: var(--ls-surface); color: var(--ls-brand-dk); font-weight: 700; }

/* Toggles */
.ls-toggles {
  display: flex; flex-wrap: wrap; gap: .5rem 1.2rem;
}
.ls-toggle {
  display: flex; align-items: center; gap: .4rem;
  cursor: pointer; user-select: none;
}
.ls-toggle input { display: none; }
.ls-track {
  width: 32px; height: 17px;
  border-radius: 999px;
  background: var(--ls-border2);
  position: relative; flex-shrink: 0;
  transition: background var(--ls-tr);
}
.ls-thumb {
  position: absolute; top: 2px; left: 2px;
  width: 13px; height: 13px;
  border-radius: 50%; background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.22);
  transition: transform var(--ls-tr);
}
.ls-toggle input:checked ~ .ls-track               { background: var(--ls-brand); }
.ls-toggle input:checked ~ .ls-track .ls-thumb     { transform: translateX(15px); }
.ls-toggle.sm .ls-track  { width: 26px; height: 15px; }
.ls-toggle.sm .ls-thumb  { width: 11px; height: 11px; }
.ls-toggle.sm input:checked ~ .ls-track .ls-thumb  { transform: translateX(11px); }
.ls-tlbl {
  font-size: .78rem; font-weight: 500;
  color: var(--ls-text2);
}
.ls-toggle.sm .ls-tlbl { font-size: .74rem; }

/* ── Action bar ──────────────────────────────────────────────── */
.ls-actions {
  display: flex; align-items: center;
  gap: .6rem; flex-wrap: wrap;
}

/* Primary shuffle button */
.ls-btn-shuffle {
  display: inline-flex; align-items: center; gap: .45rem;
  padding: .65rem 1.6rem;
  background: var(--ls-brand);
  color: #fff;
  border: none; border-radius: var(--ls-rl);
  font: inherit; font-size: 1rem; font-weight: 700;
  cursor: pointer;
  box-shadow: 0 3px 14px var(--ls-brand-glow);
  transition: background var(--ls-tr), box-shadow var(--ls-tr), transform .1s;
}
.ls-btn-shuffle:hover {
  background: var(--ls-brand-dk);
  box-shadow: 0 5px 20px var(--ls-brand-glow);
}
.ls-btn-shuffle:active { transform: scale(.97); }
.ls-btn-shuffle i[data-lucide] { width: 17px; height: 17px; stroke-width: 2.2; }
.ls-btn-shuffle.ls-spin i[data-lucide] { animation: lsSpin .38s ease; }
@keyframes lsSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.ls-kbd {
  font: inherit; font-size: .65rem; font-weight: 700;
  background: rgba(255,255,255,.22);
  border-radius: 5px; padding: .1rem .35rem;
  letter-spacing: .01em;
}

/* Secondary buttons */
.ls-btn-group {
  display: flex; gap: .35rem; flex-wrap: wrap;
}
.ls-btn {
  display: inline-flex; align-items: center; gap: .38rem;
  padding: .5rem .85rem;
  background: var(--ls-surface);
  border: 1px solid var(--ls-border);
  border-radius: var(--ls-r);
  font: inherit; font-size: .84rem; font-weight: 600;
  color: var(--ls-text2);
  cursor: pointer;
  transition: background var(--ls-tr), border-color var(--ls-tr), color var(--ls-tr), transform .1s;
}
.ls-btn:hover  { background: var(--ls-bg2); border-color: var(--ls-border2); color: var(--ls-text); }
.ls-btn:active { transform: scale(.97); }
.ls-btn i[data-lucide] { width: 15px; height: 15px; stroke-width: 2.2; flex-shrink: 0; }
.ls-btn.sm { font-size: .76rem; padding: .3rem .65rem; border-radius: 7px; }
.ls-btn.sm i[data-lucide] { width: 13px; height: 13px; }
.ls-btn-danger { color: var(--ls-danger) !important; }
.ls-btn-danger:hover { background: var(--ls-danger-bg) !important; border-color: var(--ls-danger) !important; }

/* Ghost button (history clear) */
.ls-btn-ghost {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .25rem .55rem;
  background: transparent; border: none; border-radius: 6px;
  font: inherit; font-size: .75rem; font-weight: 600;
  color: var(--ls-text3); cursor: pointer;
  transition: background var(--ls-tr), color var(--ls-tr);
}
.ls-btn-ghost:hover { background: var(--ls-danger-bg); color: var(--ls-danger); }
.ls-btn-ghost i[data-lucide] { width: 13px; height: 13px; }

/* Select */
.ls-select {
  font: inherit; font-size: .76rem;
  padding: .28rem .45rem;
  background: var(--ls-bg2);
  border: 1px solid var(--ls-border);
  border-radius: 7px;
  color: var(--ls-text2);
  cursor: pointer; outline: none;
  transition: border-color var(--ls-tr);
}
.ls-select:hover { border-color: var(--ls-border2); }

/* Output controls wrapper */
.ls-out-ctrl {
  display: flex; align-items: center;
  gap: .4rem; flex-wrap: wrap;
}

/* ── Drag hint ───────────────────────────────────────────────── */
.ls-drag-hint {
  display: flex; align-items: center; gap: .35rem;
  font-size: .74rem; color: var(--ls-text3);
  padding: .4rem 1.2rem;
  background: var(--ls-bg);
  border-bottom: 1px solid var(--ls-border);
}
.ls-drag-hint i[data-lucide] { width: 12px; height: 12px; }

/* ── Result list ─────────────────────────────────────────────── */
.ls-result {
  min-height: 100px;
  padding: .4rem;
}

/* Empty state */
.ls-empty {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: .65rem;
  padding: 2.5rem 1rem;
  color: var(--ls-text3); text-align: center;
}
.ls-empty i[data-lucide] { width: 34px; height: 34px; stroke-width: 1.3; }
.ls-empty p { font-size: .875rem; }

/* Result item */
.ls-item {
  display: flex; align-items: center; gap: .5rem;
  padding: .45rem .65rem;
  border-radius: var(--ls-r);
  cursor: grab;
  user-select: none;
  transition: background var(--ls-tr);
}
.ls-item:hover            { background: var(--ls-bg2); }
.ls-item.ls-dragging      { opacity: .4; cursor: grabbing; }
.ls-item.ls-drag-over     { background: color-mix(in srgb, var(--ls-brand) 14%, var(--ls-surface)); }

.ls-item-grip {
  color: var(--ls-text3); flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--ls-tr);
}
.ls-item:hover .ls-item-grip { opacity: 1; }
.ls-item-grip i[data-lucide] { width: 14px; height: 14px; stroke-width: 2; }

.ls-item-num {
  min-width: 24px; text-align: right;
  font-size: .7rem; font-weight: 700;
  color: var(--ls-text3); flex-shrink: 0;
}
.ls-item-text {
  flex: 1;
  font-size: .9rem; color: var(--ls-text);
  word-break: break-word;
}
.ls-item-del {
  flex-shrink: 0; opacity: 0;
  background: transparent; border: none;
  color: var(--ls-text3);
  padding: .18rem; border-radius: 5px;
  cursor: pointer; display: grid; place-items: center;
  transition: opacity var(--ls-tr), background var(--ls-tr), color var(--ls-tr);
}
.ls-item:hover .ls-item-del { opacity: 1; }
.ls-item-del:hover { background: var(--ls-danger-bg); color: var(--ls-danger); }
.ls-item-del i[data-lucide] { width: 13px; height: 13px; }

/* Slide-in animation for new shuffles */
.ls-item.ls-in { animation: lsSlide .22s ease both; }
@keyframes lsSlide {
  from { opacity: 0; transform: translateY(-5px) scale(.98); }
  to   { opacity: 1; transform: none; }
}

/* ── History panel ───────────────────────────────────────────── */
.ls-hist {
  max-height: 320px;
  overflow-y: auto;
}
.ls-hist-entry {
  display: flex; align-items: flex-start; gap: .65rem;
  padding: .7rem 1.2rem;
  border-bottom: 1px solid var(--ls-border);
  transition: background var(--ls-tr);
}
.ls-hist-entry:last-child { border-bottom: none; }
.ls-hist-entry:hover { background: var(--ls-bg); }

.ls-hist-meta {
  flex-shrink: 0; display: flex;
  flex-direction: column; align-items: center; gap: .12rem;
  min-width: 36px;
}
.ls-hist-num {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--ls-brand); color: #fff;
  font-size: .7rem; font-weight: 800;
  display: grid; place-items: center;
}
.ls-hist-time { font-size: .63rem; color: var(--ls-text3); }

.ls-hist-preview {
  flex: 1; font-size: .78rem;
  color: var(--ls-text2); line-height: 1.5;
}
.ls-hist-restore {
  flex-shrink: 0;
  background: transparent; border: 1px solid var(--ls-border);
  border-radius: 6px;
  padding: .22rem .5rem;
  font: inherit; font-size: .7rem; font-weight: 600;
  color: var(--ls-text2); cursor: pointer;
  transition: background var(--ls-tr), border-color var(--ls-tr), color var(--ls-tr);
}
.ls-hist-restore:hover { background: var(--ls-brand); border-color: var(--ls-brand); color: #fff; }

/* ── Toasts ──────────────────────────────────────────────────── */
.ls-toasts {
  position: fixed; bottom: 1.2rem; right: 1.2rem;
  z-index: 9999;
  display: flex; flex-direction: column; gap: .45rem;
  pointer-events: none;
}
.ls-toast {
  display: flex; align-items: center; gap: .5rem;
  background: var(--ls-text); color: var(--ls-bg);
  border-radius: var(--ls-r);
  padding: .55rem .95rem;
  font-size: .82rem; font-weight: 600;
  box-shadow: var(--ls-shl);
  pointer-events: auto;
  animation: lsToastIn .2s ease;
}
.ls-toast.ls-out { animation: lsToastOut .2s ease forwards; }
.ls-toast.ls-ok  { background: var(--ls-success); color: #fff; }
.ls-toast.ls-err { background: var(--ls-danger);  color: #fff; }
.ls-toast i[data-lucide] { width: 14px; height: 14px; flex-shrink: 0; }
@keyframes lsToastIn  {
  from { opacity: 0; transform: translateY(10px) scale(.95); }
  to   { opacity: 1; transform: none; }
}
@keyframes lsToastOut {
  to   { opacity: 0; transform: translateY(10px) scale(.95); }
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 540px) {
  .ls-stats       { gap: .6rem; padding: .6rem .9rem; }
  .ls-stat-val    { font-size: 1.15rem; }
  .ls-panel-hd    { flex-direction: column; align-items: flex-start; }
  .ls-out-ctrl    { width: 100%; }
  .ls-btn span    { display: none; }
  .ls-btn-shuffle .ls-kbd { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}