/* Fun tools shared layout (Soft & clear) */
.tool-app *{box-sizing:border-box}
.tool-app p{margin:0}
.tool-app .fz{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px;align-items:start}
.tool-app .fz-main,.tool-app .fz-side{min-width:0;display:grid;gap:16px}
.tool-app .fz-main{align-content:start}
.tool-app .fz-panel{background:var(--zl-surface);border:1px solid var(--zl-line);border-radius:18px;padding:18px;display:grid;gap:14px;align-content:start;min-width:0}
.tool-app .fz-panel.fz-alt{background:var(--zl-surface-2)}
.tool-app .fz-panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.tool-app .fz-field{display:grid;gap:6px;min-width:0}
.tool-app .fz-field>label,.tool-app .fz-range-row label,.tool-app .fz-label{font:500 14px/1.3 var(--zl-font-head);color:var(--zl-ink-2)}
.tool-app .fz-field select,.tool-app .fz-field input{font-size:16px}
.tool-app .fz-field select,.tool-app .fz-field input[type=text],.tool-app .fz-field input[type=number],.tool-app .fz-field input[type=search]{width:100%;min-height:44px;padding:0 12px}
.tool-app .fz-field textarea{width:100%;padding:10px 12px;min-height:120px;resize:vertical;font-family:var(--zl-font-body);line-height:1.5}
.tool-app .fz-field input[type=range]{width:100%;min-height:28px;margin:0}
.tool-app .fz-range-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.tool-app .fz-range-row strong{font:600 14px var(--zl-font-head);color:var(--zl-ink)}
.tool-app .fz-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.tool-app .fz-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tool-app .fz-actions-center{justify-content:center}
.tool-app .fz-sm{min-height:44px;padding:0 14px;font-size:14px}
.tool-app .btn-outline.fz-danger{color:var(--zl-danger)}
.tool-app .btn-outline.fz-danger:hover{border-color:var(--zl-danger);color:var(--zl-danger)}
.tool-app .btn-outline[aria-pressed="true"]{background:var(--zl-tint);border-color:var(--zl-accent);color:var(--zl-accent-strong)}
.tool-app .fz-result{text-align:center;display:grid;gap:4px;min-height:64px}
.tool-app .fz-result-title{font:600 clamp(26px,3.4vw,36px)/1.15 var(--zl-font-head);color:var(--zl-ink);letter-spacing:-.02em}
.tool-app .fz-result-sub{color:var(--zl-muted);font-size:15px}
.tool-app .fz-stats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}
.tool-app .fz-stat{background:var(--zl-surface-2);border:1px solid var(--zl-line);border-radius:12px;padding:10px 12px;display:grid;gap:2px;min-width:0}
.tool-app .fz-stat strong{font:600 20px/1.2 var(--zl-font-head);color:var(--zl-ink);overflow-wrap:anywhere}
.tool-app .fz-stat span{color:var(--zl-muted);font-size:13px;line-height:1.35}
.tool-app .fz-stat span b{font-weight:600;color:var(--zl-ink-2)}
.tool-app .fz-mode{text-align:center;color:var(--zl-muted);font-size:14px;min-height:1.4em}
.tool-app .fz-note{color:var(--zl-muted);font-size:14px;min-height:1.3em}
.tool-app .fz-toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px}
.tool-app .fz-toggle span{font:500 14px var(--zl-font-head);color:var(--zl-ink-2)}
.tool-app .fz-switch{width:50px;height:30px;border:0;border-radius:999px;background:var(--zl-line-2);position:relative;cursor:pointer;flex:none;padding:0}
.tool-app .fz-switch::after{content:"";position:absolute;top:4px;left:4px;width:22px;height:22px;border-radius:50%;background:#fff;transition:left .15s ease}
.tool-app .fz-switch.active{background:var(--zl-accent)}
.tool-app .fz-switch.active::after{left:24px}
html[data-theme="dark"] .tool-app .fz-switch::after{background:var(--zl-ink)}
html[data-theme="dark"] .tool-app .fz-switch.active::after{background:var(--zl-accent-ink)}
.tool-app .fz-history{display:grid;gap:6px;max-height:280px;overflow:auto}
.tool-app .fz-history-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 12px;border:1px solid var(--zl-line);border-radius:12px;background:var(--zl-surface-2)}
.tool-app .fz-history-item strong{font:600 15px var(--zl-font-head);color:var(--zl-ink)}
.tool-app .fz-history-item span{color:var(--zl-muted);font-size:13px}
.tool-app .fz-empty{padding:16px;text-align:center;color:var(--zl-muted);border:1px dashed var(--zl-line-2);border-radius:12px;background:var(--zl-surface-2);font-size:14px}
/* dialog */
.tool-app .tz-modal{position:fixed;inset:0;z-index:300;display:none;align-items:center;justify-content:center;padding:16px}
.tool-app .tz-modal.show{display:flex}
.tool-app .tz-modal-backdrop{position:absolute;inset:0;background:rgba(9,22,23,.5)}
.tool-app .tz-modal-card{position:relative;width:min(560px,100%);max-height:88vh;overflow:auto;border:1px solid var(--zl-line);border-radius:22px;background:var(--zl-surface);color:var(--zl-ink);display:flex;flex-direction:column}
.tool-app .tz-modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:18px 20px;border-bottom:1px solid var(--zl-line)}
.tool-app .tz-modal-head p:not(.zl-ui-title){color:var(--zl-muted);font-size:14px;margin-top:4px}
.tool-app .tz-modal-close{flex:none;width:44px;height:44px;border:1.5px solid var(--zl-line-2);border-radius:999px;background:var(--zl-surface);color:var(--zl-ink);font-size:22px;line-height:1;cursor:pointer}
.tool-app .tz-modal-body{padding:18px 20px 20px;display:grid;gap:14px}
.tool-app .tz-modal-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
@media (max-width:1100px){.tool-app .fz{grid-template-columns:1fr}}
@media (max-width:640px){
.tool-app .fz-panel{padding:14px}
.tool-app .fz-stats{grid-template-columns:repeat(3,minmax(0,1fr))}
.tool-app .fz-row{grid-template-columns:1fr}
.tool-app .fz-actions-center>button{flex:1 1 auto}
}
/* coin */
.tool-app .cf-scene{position:relative;display:grid;place-items:center;min-height:330px;border-radius:14px;background:var(--zl-surface-2);border:1px solid var(--zl-line);overflow:hidden}
.tool-app .coin-shadow{position:absolute;left:50%;bottom:34px;transform:translateX(-50%) scaleX(.72);width:220px;height:26px;border-radius:999px;background:radial-gradient(closest-side,rgba(16,42,44,.22),rgba(16,42,44,0));opacity:.55;pointer-events:none}
html[data-theme="dark"] .tool-app .coin-shadow{background:radial-gradient(closest-side,rgba(0,0,0,.6),rgba(0,0,0,0))}
.tool-app .coin-wrap{perspective:1200px;display:grid;place-items:center;width:100%;min-height:300px;position:relative;z-index:2}
.tool-app .coin-stage{position:relative;width:240px;height:240px;transform-style:preserve-3d}
.tool-app .coin{width:100%;height:100%;position:relative;transform-style:preserve-3d;will-change:transform}
.tool-app .coin-face{position:absolute;inset:0;border-radius:50%;backface-visibility:hidden;-webkit-backface-visibility:hidden;display:grid;place-items:center;overflow:hidden;border:8px solid rgba(255,255,255,.55)}
.tool-app .coin-face.tails{transform:rotateY(180deg)}
.tool-app .coin-face.theme-gold{background:radial-gradient(circle at 30% 26%,#fff1c2,#e9c057 45%,#c08d1f);color:#6a4a08}
.tool-app .coin-face.theme-silver{background:radial-gradient(circle at 30% 26%,#ffffff,#d5dee8 45%,#97a8bd);color:#3d5068}
.tool-app .coin-face.theme-bronze{background:radial-gradient(circle at 30% 26%,#f6d3ad,#c98a52 45%,#8a5228);color:#4d2a14}
.tool-app .coin-face.theme-midnight{background:radial-gradient(circle at 30% 26%,#3a5682,#18304f 50%,#0b1a30);color:#dce7fb}
.tool-app .coin-edge{position:absolute;inset:12px;border-radius:50%;border:4px solid rgba(255,255,255,.22);pointer-events:none}
.tool-app .coin-svg{width:82%;height:82%;display:block}
.tool-app .engrave{fill:none;stroke:currentColor;stroke-width:5;opacity:.35}
.tool-app .engrave-soft{fill:none;stroke:currentColor;stroke-width:3;opacity:.18}
.tool-app .fill-main{fill:currentColor}
.tool-app .fill-mid{fill:currentColor;opacity:.35}
.tool-app .cf-flow{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}
.tool-app .cf-flow span{padding:4px 10px;border-radius:999px;background:var(--zl-tint);color:var(--zl-accent-strong);font:500 13px var(--zl-font-head)}
@media (max-width:640px){
.tool-app .cf-scene{min-height:260px}
.tool-app .coin-wrap{min-height:240px}
.tool-app .coin-stage{width:190px;height:190px}
.tool-app .coin-shadow{width:170px;bottom:22px}
}