/**
 * iOS UDID 工具箱 - Neumorphism (新拟态)
 * @version 1.3.0
 */
:root{
    --bg:#E8EDF2;
    --surface:#E8EDF2;
    --c-primary:#007AFF;
    --c-green:#34C759;
    --c-orange:#FF9500;
    --c-red:#FF3B30;
    --c-purple:#5856D6;
    --text:#2C3E50;
    --text2:#4A5568;
    --text3:#718096;
    --text4:#A0AEC0;
    --r:14px;
    --r-sm:10px;
    /* 新拟态核心阴影 */
    --shadow-out: 6px 6px 12px rgba(163,177,198,0.6), -6px -6px 12px rgba(255,255,255,0.8);
    --shadow-in: inset 4px 4px 8px rgba(163,177,198,0.5), inset -4px -4px 8px rgba(255,255,255,0.7);
    --shadow-sm: 3px 3px 6px rgba(163,177,198,0.5), -3px -3px 6px rgba(255,255,255,0.7);
    --tr:0.2s ease
}
@media(prefers-color-scheme:dark){:root{
    --bg:#2D3748;
    --surface:#2D3748;
    --text:#E2E8F0;
    --text2:#CBD5E0;
    --text3:#A0AEC0;
    --text4:#718096;
    --shadow-out: 5px 5px 10px rgba(0,0,0,0.4), -5px -5px 10px rgba(55,65,81,0.3);
    --shadow-in: inset 3px 3px 6px rgba(0,0,0,0.4), inset -3px -3px 6px rgba(55,65,81,0.3);
    --shadow-sm: 2px 2px 5px rgba(0,0,0,0.35), -2px -2px 5px rgba(55,65,81,0.25);
    --c-primary:#0A84FF
}}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC",sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;overscroll-behavior:none;touch-action:manipulation}
input,button,select{font:inherit;color:inherit}
a{color:var(--c-primary);text-decoration:none}

.app{max-width:480px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;padding:0 16px}
.bg-mesh{display:none}
.content{flex:1;padding:16px 0;display:flex;flex-direction:column;gap:16px}

/* Nav */
.nav{padding:max(14px,env(safe-area-inset-top)) 0 14px;display:flex;align-items:center;justify-content:center;position:relative}
.nav-title{font-size:17px;font-weight:700;letter-spacing:-0.3px}
.nav-btn{position:absolute;right:0;width:36px;height:36px;border:none;background:var(--surface);border-radius:var(--r-sm);box-shadow:var(--shadow-sm);color:var(--text3);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--tr)}
.nav-btn:active{box-shadow:var(--shadow-in);color:var(--c-primary)}

/* Neu Card */
.card{background:var(--surface);border-radius:var(--r);box-shadow:var(--shadow-out);border:none;overflow:hidden;transition:var(--tr)}

/* Hero */
.card-hero{padding:0}
.hero-btn{width:100%;display:flex;align-items:center;gap:14px;padding:18px 16px;border:none;background:transparent;cursor:pointer;text-align:left;color:var(--text);transition:var(--tr);border-radius:var(--r)}
.hero-btn:active{box-shadow:var(--shadow-in)}
.hero-btn-icon{width:48px;height:48px;border-radius:12px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:3px 3px 8px rgba(0,122,255,0.3)}
.hero-btn-text{flex:1;min-width:0}
.hero-btn-text strong{display:block;font-size:16px;font-weight:700}
.hero-btn-text small{font-size:12px;color:var(--text3);font-weight:400}
.hero-btn-arrow{color:var(--text4);flex-shrink:0}

/* Device Info */
.device-info{border-top:1px solid rgba(0,0,0,0.05);padding:4px 0}
.info-row{padding:10px 16px}
.info-row label{display:block;font-size:10px;color:var(--text4);font-weight:600;text-transform:uppercase;letter-spacing:0.5px;margin-bottom:3px}
.info-val{display:flex;align-items:center;gap:8px}
.info-val input{flex:1;border:none;background:transparent;font-size:14px;outline:none;min-width:0;padding:0;font-weight:500}
.btn-copy{width:30px;height:30px;border:none;background:var(--surface);border-radius:8px;box-shadow:var(--shadow-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--c-primary);transition:var(--tr);flex-shrink:0}
.btn-copy:active{box-shadow:var(--shadow-in);transform:scale(.92)}

/* Group */
.card-group{padding:0}
.group-title{padding:14px 16px 8px;font-size:11px;font-weight:700;color:var(--text4);text-transform:uppercase;letter-spacing:0.5px;display:flex;align-items:center;justify-content:space-between}
.btn-text-sm{border:none;background:none;color:var(--c-primary);font-size:12px;font-weight:500;cursor:pointer}
.btn-text-sm:active{opacity:.5}

/* List */
.list-item{display:flex;align-items:center;gap:12px;padding:14px 16px;cursor:pointer;transition:var(--tr)}
.list-item:active{background:rgba(0,0,0,0.02);box-shadow:var(--shadow-in);border-radius:var(--r)}
.list-icon{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff;box-shadow:2px 2px 5px rgba(0,0,0,0.15)}
.list-icon.blue{background:var(--c-primary)}
.list-icon.green{background:var(--c-green)}
.list-icon.orange{background:var(--c-orange)}
.list-icon.red{background:var(--c-red)}
.list-icon.purple{background:var(--c-purple)}
.list-text{flex:1;min-width:0}
.list-text span{display:block;font-size:15px;font-weight:600}
.list-text small{font-size:12px;color:var(--text3)}
.list-arrow{color:var(--text4);flex-shrink:0}

/* Panels */
.panel{animation:slideIn .25s ease}
@keyframes slideIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;font-weight:700;font-size:15px}
.panel-close{width:28px;height:28px;border:none;background:var(--surface);border-radius:50%;box-shadow:var(--shadow-sm);font-size:18px;color:var(--text3);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--tr)}
.panel-close:active{box-shadow:var(--shadow-in)}
.panel-body{padding:0 16px 16px}
.hint{font-size:13px;color:var(--text3);margin-bottom:14px;line-height:1.6}

/* Input */
.input-group{display:flex;gap:8px}
.input-group input{flex:1;padding:12px 14px;border:none;border-radius:var(--r-sm);background:var(--surface);box-shadow:var(--shadow-in);font-size:14px;outline:none;min-width:0;transition:var(--tr)}
.input-group input:focus{box-shadow:var(--shadow-in),0 0 0 2px var(--c-primary)}
.input-btn{width:44px;height:44px;border:none;background:var(--c-primary);border-radius:var(--r-sm);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:3px 3px 6px rgba(0,122,255,0.3);transition:var(--tr)}
.input-btn:active{box-shadow:inset 2px 2px 4px rgba(0,0,0,0.2);transform:scale(.94)}

/* Button Action */
.btn-action{width:100%;padding:14px;border:none;border-radius:var(--r-sm);background:var(--c-primary);color:#fff;font-size:14px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;box-shadow:4px 4px 8px rgba(0,122,255,0.3),-2px -2px 6px rgba(255,255,255,0.1);transition:var(--tr)}
.btn-action:active{box-shadow:inset 3px 3px 6px rgba(0,0,0,0.2);transform:scale(.97)}
.btn-action.green{background:var(--c-green);box-shadow:4px 4px 8px rgba(52,199,89,0.3),-2px -2px 6px rgba(255,255,255,0.1)}

/* Loading & Result */
.loading{display:flex;align-items:center;justify-content:center;gap:8px;padding:16px 0;font-size:13px;color:var(--text3)}
.spinner{width:16px;height:16px;border:2px solid var(--text4);border-top-color:var(--c-primary);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.result{margin-top:12px;padding:12px;background:var(--surface);border-radius:var(--r-sm);box-shadow:var(--shadow-in)}
.result .r-row{display:flex;justify-content:space-between;padding:8px 0;font-size:13px}
.result .r-row+.r-row{border-top:1px solid rgba(0,0,0,0.04)}
.result .r-label{color:var(--text3)}
.result .r-value{font-weight:600}
.result .r-error{color:var(--c-red);text-align:center;font-size:13px}

/* Compare */
.compare-row-sel{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.sel{flex:1;padding:10px 12px;border:none;border-radius:var(--r-sm);background:var(--surface);box-shadow:var(--shadow-in);font-size:13px;outline:none;appearance:none;-webkit-appearance:none;min-width:0}
.sel:focus{box-shadow:var(--shadow-in),0 0 0 2px var(--c-primary)}
.vs{font-size:11px;font-weight:800;color:var(--text4)}
.cmp-table{border-radius:var(--r-sm);overflow:hidden;box-shadow:var(--shadow-in);margin-top:12px}
.cmp-row{display:grid;grid-template-columns:1fr auto 1fr;padding:8px 10px;font-size:11px;align-items:center}
.cmp-row+.cmp-row{border-top:1px solid rgba(0,0,0,0.04)}
.cmp-row.cmp-h{background:rgba(0,0,0,0.03);font-weight:700;font-size:12px}
.cmp-row span:first-child{text-align:left}
.cmp-row span:last-child{text-align:right}
.cmp-row .cmp-l{text-align:center;color:var(--text3);font-weight:600}

/* Battery */
.tips-list{display:flex;flex-direction:column;gap:8px}
.tip{display:flex;align-items:flex-start;gap:8px;font-size:12px;line-height:1.6;color:var(--text2);padding:10px;background:var(--surface);border-radius:var(--r-sm);box-shadow:var(--shadow-sm)}
.tip-tag{flex-shrink:0;font-size:10px;font-weight:700;padding:2px 6px;border-radius:5px;background:rgba(0,0,0,0.06);color:var(--text3);margin-top:1px;white-space:nowrap}
.tip-tag.new{background:var(--c-primary);color:#fff}

/* History */
.empty{padding:24px;text-align:center;font-size:13px;color:var(--text4)}
.h-item{padding:12px 16px}
.h-item+.h-item{border-top:1px solid rgba(0,0,0,0.04)}
.h-top{display:flex;justify-content:space-between;margin-bottom:2px}
.h-model{font-size:13px;font-weight:600}
.h-date{font-size:11px;color:var(--text4)}
.h-udid{font-size:11px;color:var(--text3);font-family:ui-monospace,"SF Mono",monospace;word-break:break-all}

/* Accordion */
.acc .acc-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;cursor:pointer;font-size:14px;font-weight:600;transition:var(--tr)}
.acc .acc-head:active{opacity:.6}
.acc-arr{color:var(--text4);transition:transform .25s ease}
.acc.active .acc-arr{transform:rotate(180deg)}
.acc-body{max-height:0;overflow:hidden;padding:0 16px;transition:max-height .35s cubic-bezier(.4,0,.2,1),padding .25s ease}
.acc.active .acc-body{max-height:300px;padding:0 16px 14px}
.acc-body p{font-size:13px;line-height:1.7;color:var(--text2)}
.acc-body b{color:var(--c-primary);font-weight:600}

/* Modal */
.modal{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .25s,visibility 0s .25s}
.modal.active{opacity:1;visibility:visible;transition:opacity .25s,visibility 0s}
.modal-bg{position:absolute;inset:0;background:rgba(0,0,0,0.3);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
.modal-box{position:relative;z-index:1;width:220px;transform:scale(.9);transition:transform .3s cubic-bezier(.34,1.56,.64,1)}
.modal.active .modal-box{transform:scale(1)}
.modal-body{padding:20px;display:flex;flex-direction:column;align-items:center;gap:12px}
.modal-body canvas{border-radius:10px;box-shadow:var(--shadow-sm)}

/* Toast */
#toast-box{position:fixed;top:max(56px,env(safe-area-inset-top));left:50%;transform:translateX(-50%);z-index:9999;display:flex;flex-direction:column;gap:6px;pointer-events:none}
.toast{background:var(--surface);border-radius:var(--r-sm);box-shadow:var(--shadow-out);padding:10px 16px;font-size:13px;font-weight:500;opacity:0;transform:translateY(-8px);animation:ti .25s ease forwards;white-space:nowrap}
.toast.out{animation:to .2s ease forwards}
@keyframes ti{to{opacity:1;transform:translateY(0)}}
@keyframes to{to{opacity:0;transform:translateY(-8px)}}

/* Footer */
.footer{text-align:center;padding:28px 16px calc(16px + env(safe-area-inset-bottom,0));font-size:11px;color:var(--text4);line-height:1.8}
.footer a{color:var(--text3)}

@media(max-width:375px){.hero-btn-text strong{font-size:15px} .list-text span{font-size:14px} .app{padding:0 12px}}
@media(prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}