:root{
  --bg:#f5f4f0; --surface:#fbfbf9; --panel:#ffffff; --panel-soft:#f7f6f2;
  --ink:#1c1c1a; --ink-hover:#3a3935; --ink-2:#55534d; --sub:#7a776f; --muted:#8a877f;
  --line:#e3e1db; --line-2:#dcdad3; --line-3:#efeee9; --hover:#efeee9; --soft:#f3f2ee; --track:#ebe9e3;
  --accent:#19c37d; /* 금고 에메랄드 */
  --vault:#0e1512; --vault-2:#16201b; --vault-line:#26332c;
  --c-digit:#7cc4ff; --c-sym:#ffb86b;
  --font:"IBM Plex Sans KR",sans-serif; --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit}
.mono-label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 28px;border-bottom:1px solid var(--line);background:var(--surface);flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:14px;min-width:0;flex-wrap:wrap}
.brand-title{font-size:17px;font-weight:700;letter-spacing:-.01em;margin:0}
.actions{display:flex;gap:8px}
.safe-pill{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:#e3f6ec;color:#0d6b43;font-size:12.5px;font-weight:500}
.safe-pill i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(25,195,125,.25)}
.btn{height:36px;padding:0 14px;background:transparent;border:1px solid var(--line-2);border-radius:999px;font-size:13px;cursor:pointer;white-space:nowrap}
.btn:hover{background:var(--hover)}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover{background:var(--ink-hover)}
.text-input{height:40px;padding:0 12px;background:var(--surface);border:1px solid var(--line-2);border-radius:8px;font:inherit;font-size:14px;color:var(--ink);width:100%}
.text-input:focus{outline:none;border-color:var(--ink)}
.mono{font-family:var(--mono);font-size:13px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
code{font-family:var(--mono);font-size:.92em;background:var(--soft);padding:1px 5px;border-radius:4px}

.pw{width:100%;max-width:1120px;margin:0 auto;padding:28px 28px 56px;display:flex;flex-direction:column;gap:20px}

/* ---------- Vault ---------- */
.vault{background:var(--vault);color:#e8f2ec;border-radius:22px;padding:22px 24px 22px;position:relative;overflow:hidden;
  background-image:radial-gradient(circle at 92% -20%,rgba(25,195,125,.22),transparent 45%),repeating-linear-gradient(0deg,rgba(255,255,255,.025) 0 1px,transparent 1px 22px)}
.mode{display:inline-flex;background:var(--vault-2);border:1px solid var(--vault-line);border-radius:999px;padding:3px;gap:2px;max-width:100%}
.mode-btn{height:32px;padding:0 16px;border:none;border-radius:999px;background:transparent;color:#9fb3a8;font-size:13px;cursor:pointer;white-space:nowrap}
.mode-btn.is-on{background:var(--accent);color:#04140c;font-weight:700}
.display{display:flex;align-items:center;gap:14px;margin:22px 0 10px;min-height:76px}
.pw-main{flex:1;min-width:0;font-family:var(--mono);font-size:34px;font-weight:500;letter-spacing:.02em;line-height:1.35;word-break:break-all;color:#fff}
.pw-main.is-long{font-size:22px}
.pw-main.is-xlong{font-size:16px}
.pw-main .d{color:var(--c-digit)}
.pw-main .s{color:var(--c-sym)}
.pw-main.flash{animation:flash .35s ease}
@keyframes flash{from{opacity:.2;filter:blur(3px)}to{opacity:1;filter:none}}
.display-btns{display:flex;gap:8px;flex:none}
.icon-btn{width:48px;height:48px;border-radius:14px;border:1px solid var(--vault-line);background:var(--vault-2);color:#cfe3d8;cursor:pointer;display:grid;place-items:center}
.icon-btn:hover{border-color:var(--accent);color:#fff}
.icon-btn:active svg{transform:rotate(-90deg);transition:transform .2s}
.copy-btn{height:48px;padding:0 22px;border-radius:14px;border:none;background:var(--accent);color:#04140c;font-weight:700;font-size:15px;cursor:pointer}
.copy-btn:hover{filter:brightness(1.08)}
.hint-ko{margin:0 0 8px;font-size:13px;color:#9fb3a8}
.hint-ko b{color:#e8f2ec;font-weight:500}
.meter{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-top:14px;border-top:1px dashed var(--vault-line)}
.bars{display:flex;gap:4px}
.bars i{width:34px;height:8px;border-radius:3px;background:#24312a;transition:background .2s}
.meter-text{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;font-size:13px}
.meter-text b{font-size:15px}
#bits{font-family:var(--mono);color:#cfe3d8}
.crack{color:#8aa197;font-size:12.5px}

/* ---------- Panels ---------- */
.grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;align-items:start}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:20px 22px;display:flex;flex-direction:column;gap:12px;min-width:0}
.panel-title{margin:0;font-size:15px}
#charOpts,#wordOpts{display:flex;flex-direction:column;gap:12px}
.len{display:grid;grid-template-columns:auto minmax(0,1fr) 72px;align-items:center;gap:12px}
.len label{font-size:13px;font-weight:500}
.num{height:40px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface);font-family:var(--mono);font-size:16px;font-weight:700;text-align:center;width:100%;color:var(--ink)}
.num--out{display:grid;place-items:center}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:24px;background:transparent;margin:0;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:999px;background:linear-gradient(90deg,var(--accent) var(--p,30%),var(--track) var(--p,30%))}
input[type=range]::-moz-range-track{height:6px;border-radius:999px;background:var(--track)}
input[type=range]::-moz-range-progress{height:6px;border-radius:999px;background:var(--accent)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;margin-top:-8px;border-radius:50%;background:#fff;border:2px solid var(--ink);box-shadow:0 2px 6px rgba(0,0,0,.2)}
input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#fff;border:2px solid var(--ink)}
.sets{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.set{position:relative;cursor:pointer}
.set input{position:absolute;opacity:0;width:1px;height:1px}
.set span{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 4px;border:1px solid var(--line-2);border-radius:12px;font-size:12px;color:var(--sub);transition:all .15s}
.set b{font-family:var(--mono);font-size:16px;color:var(--ink)}
.set input:checked+span{border-color:var(--ink);background:var(--ink);color:#c9d8cf}
.set input:checked+span b{color:#fff}
.set input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}
.field{font-size:13px;font-weight:500;display:flex;flex-direction:column;gap:2px}
.field small{font-weight:400;font-size:11.5px;color:var(--sub)}
.check{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--ink-2);cursor:pointer;line-height:1.5;flex-wrap:wrap}
.check input{accent-color:var(--accent);width:16px;height:16px;margin:2px 0 0;flex:none}
.seg{display:flex;background:var(--soft);border-radius:12px;padding:3px;gap:2px}
.seg-btn{flex:1;min-height:34px;padding:0 8px;border:none;border-radius:9px;background:transparent;cursor:pointer;font-size:12.5px;color:var(--ink-2)}
.seg-btn.is-on{background:#fff;color:var(--ink);font-weight:500;box-shadow:0 1px 3px rgba(0,0,0,.12)}
.seg--sep .seg-btn{font-family:var(--mono);font-size:15px}
.seg--sep .seg-btn:nth-last-child(-n+2){font-family:var(--font);font-size:12.5px}

.list-head{display:flex;align-items:center;justify-content:space-between;gap:8px}
.count{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-2)}
.count select{height:32px;border:1px solid var(--line-2);border-radius:8px;background:var(--surface);font:inherit;padding:0 6px}
.list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;max-height:430px;overflow:auto;counter-reset:pw}
.list li{display:flex;align-items:center;gap:10px;padding:8px 8px 8px 12px;border-radius:10px;background:var(--panel-soft);border:1px solid var(--line-3);counter-increment:pw}
.list li::before{content:counter(pw,decimal-leading-zero);font-family:var(--mono);font-size:11px;color:var(--muted)}
.list code{flex:1;min-width:0;background:none;padding:0;font-size:13px;word-break:break-all;color:var(--ink)}
.list code .d{color:#1769aa}
.list code .s{color:#b45309}
.mini{height:28px;padding:0 10px;border-radius:8px;border:1px solid var(--line-2);background:#fff;font-size:12px;cursor:pointer;flex:none}
.mini:hover{border-color:var(--ink)}
.list-foot{display:flex;gap:8px;justify-content:flex-end}
.privacy{margin:0;padding:14px 18px;border-radius:14px;background:#e9f7ef;color:#225a40;font-size:13px;line-height:1.65;border:1px solid #cdeedb}
.privacy b{color:#0d4a2f}
.warn{color:#b4311b;font-size:12.5px}

.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--ink);color:#fff;padding:10px 18px;border-radius:999px;font-size:13px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:50}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

@media (max-width:860px){
  .grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .topbar{padding:14px 16px}
  .pw{padding:16px 16px 40px;gap:16px}
  .vault{padding:16px;border-radius:18px}
  .mode{display:flex;width:100%}
  .mode-btn{flex:1;padding:0 8px;font-size:12.5px}
  .display{flex-direction:column;align-items:stretch;gap:12px;margin:16px 0 8px}
  .pw-main{font-size:24px}
  .pw-main.is-long{font-size:18px}
  .pw-main.is-xlong{font-size:14px}
  .display-btns .copy-btn{flex:1}
  .bars i{width:26px}
  .panel{padding:16px}
  .sets{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (prefers-reduced-motion:reduce){
  .pw-main.flash{animation:none}
  .bars i,.set span,.toast{transition:none}
}

.credit{margin:4px 0 0;font-size:11px;line-height:1.5;color:var(--muted)}
.credit a{color:inherit}

/* 단어 수 직접 입력칸 · 길이 단계 버튼 */
.len .num.tb-num{width:100%;height:40px;padding:0 6px;border:1px solid var(--line-2);border-radius:10px;background:var(--surface);font-size:16px;font-weight:700;text-align:center}
.len-presets{margin:-4px 0 4px}

/* 다크 모드 (인쇄는 라이트 그대로) */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#111513; --surface:#161b18; --panel:#1b211e; --panel-soft:#202723;
    --ink:#e6ece9; --ink-hover:#ffffff; --ink-2:#c3ccc7; --sub:#98a39d; --muted:#84908a;
    --line:#29312d; --line-2:#343d38; --line-3:#222a26; --hover:#252d29; --soft:#232b27; --track:#313b36;
    --accent:#2ed691;
    --vault:#0b110e; --vault-2:#131c17; --vault-line:#26332c;
  }
  :root[data-theme="dark"] .btn--solid,:root[data-theme="dark"] .toast,:root[data-theme="dark"] .tb-presets button[aria-pressed="true"]{color:var(--bg)}
  :root[data-theme="dark"] .btn--solid{background:var(--accent)}
  :root[data-theme="dark"] .btn--solid:hover{background:#5ee3ad}
  :root[data-theme="dark"] .vault{border:1px solid var(--vault-line)}
  :root[data-theme="dark"] .safe-pill{background:rgba(46,214,145,.14);color:#6ee7b7}
  :root[data-theme="dark"] .set input:checked+span{background:rgba(46,214,145,.14);border-color:var(--accent);color:var(--ink-2)}
  :root[data-theme="dark"] .set input:checked+span b{color:var(--ink)}
  :root[data-theme="dark"] .seg-btn.is-on{background:var(--track);box-shadow:0 1px 3px rgba(0,0,0,.4)}
  :root[data-theme="dark"] .count select{color:var(--ink)}
  :root[data-theme="dark"] .list code .d{color:#7cc4ff}
  :root[data-theme="dark"] .list code .s{color:#ffb86b}
  :root[data-theme="dark"] .mini{background:var(--panel)}
  :root[data-theme="dark"] .privacy{background:rgba(46,214,145,.08);border-color:rgba(46,214,145,.22);color:#a9d6bf}
  :root[data-theme="dark"] .privacy b{color:#6ee7b7}
  :root[data-theme="dark"] .warn{color:#f87171}
  :root[data-theme="dark"] input[type=range]::-webkit-slider-thumb{box-shadow:0 2px 6px rgba(0,0,0,.5)}
}