/* IJerrt Design System - 共享设计 token 与基础样式
   用于 drive / notes / vmusic 系列，对标 vmusic 风格
   特性：深浅主题、三态模式、五种主题色、玻璃拟态、背景光斑、触摸优化 */
:root{
  --bg:#000;
  --card:rgba(28,28,30,.55);
  --card-solid:#1c1c1e;
  --blue:#0a84ff;
  --blue-press:#0066cc;
  --green:#30d158;
  --red:#ff453a;
  --orange:#ff9f0a;
  --text:#fff;
  --text2:#a1a1a6;
  --text3:#636366;
  --border:rgba(255,255,255,.10);
  --border-2:rgba(255,255,255,.16);
  --grad:linear-gradient(135deg,#0a84ff,#0066cc);
  --grad-warm:linear-gradient(135deg,#0a84ff,#0066cc);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  --tint-a:rgba(255,255,255,.04);
  --tint-b:rgba(255,255,255,.06);
  --tint-c:rgba(255,255,255,.11);
  --glass-bg:rgba(28,28,30,.86);
  --toast-bg:rgba(30,30,32,.95);
  --toast-shadow:0 2px 8px rgba(0,0,0,.28),0 12px 32px rgba(0,0,0,.38);
  --overlay-bg:rgba(0,0,0,.62);
  --modal-bg:#161618;
  --lyric-bg:rgba(0,0,0,.25);
  --shadow-card:0 18px 50px rgba(0,0,0,.45), inset 0 1px 0 var(--tint-b);
  --shadow-hover:0 24px 70px rgba(0,0,0,.55);
  --shadow-heavy:0 24px 70px rgba(0,0,0,.6);
  --chip-color:#c7c7cc;
  --orbs-opacity:.28;
  --warn:#ff9f0a;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:22px;
  --ease:cubic-bezier(.22,1,.36,1);
  /* 主题色 RGB 分量：用于 rgba(var(--accent-rgb),α) */
  --accent-rgb:10,132,255;
  color-scheme:dark;
}
/* 兜底：JS 未设置 data-theme 时跟随系统浅色 */
@media (prefers-color-scheme: light){
  :root:not([data-theme]){
    color-scheme:light;
    --bg:#f5f5f7;
    --card:rgba(255,255,255,.72);
    --card-solid:#fff;
    --blue:#007aff;
    --blue-press:#0056b3;
    --green:#28a745;
    --text:#1d1d1f;
    --text2:#6e6e73;
    --text3:#86868b;
    --border:rgba(0,0,0,.08);
    --border-2:rgba(0,0,0,.12);
    --grad:linear-gradient(135deg,#0a84ff,#0066cc);
    --tint-a:rgba(0,0,0,.03);
    --tint-b:rgba(0,0,0,.05);
    --tint-c:rgba(0,0,0,.08);
    --glass-bg:rgba(255,255,255,.9);
    --toast-bg:rgba(255,255,255,.95);
    --toast-shadow:0 2px 8px rgba(0,0,0,.07),0 12px 32px rgba(0,0,0,.13);
    --overlay-bg:rgba(0,0,0,.38);
    --modal-bg:#ffffff;
    --lyric-bg:rgba(0,0,0,.04);
    --shadow-card:0 6px 24px rgba(0,0,0,.07), 0 2px 8px rgba(0,0,0,.04);
    --shadow-hover:0 14px 32px rgba(0,0,0,.10);
    --shadow-heavy:0 20px 60px rgba(0,0,0,.16);
    --chip-color:#3a3a3c;
    --orbs-opacity:.12;
    --warn:#b45309;
    --accent-rgb:0,122,255;
  }
}
[data-theme="light"]{
  color-scheme:light;
  --bg:#f5f5f7;
  --card:rgba(255,255,255,.72);
  --card-solid:#fff;
  --blue:#007aff;
  --blue-press:#0056b3;
  --green:#28a745;
  --text:#1d1d1f;
  --text2:#6e6e73;
  --text3:#86868b;
  --border:rgba(0,0,0,.08);
  --border-2:rgba(0,0,0,.12);
  --grad:linear-gradient(135deg,#0a84ff,#0066cc);
  --tint-a:rgba(0,0,0,.03);
  --tint-b:rgba(0,0,0,.05);
  --tint-c:rgba(0,0,0,.08);
  --glass-bg:rgba(255,255,255,.9);
  --toast-bg:rgba(255,255,255,.95);
  --toast-shadow:0 2px 8px rgba(0,0,0,.07),0 12px 32px rgba(0,0,0,.13);
  --overlay-bg:rgba(0,0,0,.38);
  --modal-bg:#ffffff;
  --lyric-bg:rgba(0,0,0,.04);
  --shadow-card:0 6px 24px rgba(0,0,0,.07), 0 2px 8px rgba(0,0,0,.04);
  --shadow-hover:0 14px 32px rgba(0,0,0,.10);
  --shadow-heavy:0 20px 60px rgba(0,0,0,.16);
  --chip-color:#3a3a3c;
  --orbs-opacity:.12;
  --warn:#b45309;
}
/* 主题色：5 种 accent */
[data-accent="purple"]{--accent-rgb:191,90,242;--blue:#bf5af2;--blue-press:#9d3fd1;--grad:linear-gradient(135deg,#bf5af2,#7c2bb8);--shadow-card:0 18px 50px rgba(0,0,0,.45), inset 0 1px 0 var(--tint-b), 0 0 0 1px rgba(191,90,242,.18);}
[data-theme="light"][data-accent="purple"]{--accent-rgb:175,82,222;--blue:#af52de;--blue-press:#8b3fc0;--grad:linear-gradient(135deg,#bf5af2,#7c2bb8);}
[data-accent="cyan"]{--accent-rgb:90,200,250;--blue:#5ac8fa;--blue-press:#2aa8d6;--grad:linear-gradient(135deg,#5ac8fa,#1e88c4);}
[data-theme="light"][data-accent="cyan"]{--accent-rgb:90,200,250;--blue:#1e88c4;--grad:linear-gradient(135deg,#5ac8fa,#1e88c4);}
[data-accent="pink"]{--accent-rgb:255,55,95;--blue:#ff375f;--blue-press:#d6294d;--grad:linear-gradient(135deg,#ff375f,#b6233f);}
[data-theme="light"][data-accent="pink"]{--accent-rgb:255,55,95;--blue:#d6294d;--grad:linear-gradient(135deg,#ff375f,#b6233f);}
[data-accent="orange"]{--accent-rgb:255,159,10;--blue:#ff9f0a;--blue-press:#cc7f00;--grad:linear-gradient(135deg,#ff9f0a,#cc7f00);}
[data-theme="light"][data-accent="orange"]{--accent-rgb:255,159,10;--blue:#cc7f00;--grad:linear-gradient(135deg,#ff9f0a,#cc7f00);}

*{margin:0;padding:0;box-sizing:border-box;}
html,body{height:100%;}
html,body,button,.btn,.tool-btn,.icon-btn,.tag,.chip,.ctx-item,.note-row,.file-card,.file-row,.sidebar-btn,.q-rm,.q-close,.modal-close,.to-top,.avatar-btn,.seg button{
  touch-action:manipulation;-webkit-tap-highlight-color:transparent;
}
body{
  font-family:var(--font);
  background:var(--bg);
  min-height:100vh;
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
}
/* 背景光斑 */
.bg-orbs{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;}
.bg-orbs span{
  position:absolute;border-radius:50%;opacity:var(--orbs-opacity);
  contain:layout style paint;animation:orb-float 18s ease-in-out infinite;
}
.bg-orbs .o1{
  width:380px;height:380px;left:-80px;top:-60px;
  background:radial-gradient(circle at 50% 50%, rgba(var(--accent-rgb),.85) 0%, rgba(var(--accent-rgb),.32) 45%, transparent 70%);
}
.bg-orbs .o2{
  width:320px;height:320px;right:-60px;top:30%;
  background:radial-gradient(circle at 50% 50%, rgba(139,108,240,.8) 0%, rgba(139,108,240,.28) 45%, transparent 70%);
  animation-delay:-6s;
}
.bg-orbs .o3{
  width:300px;height:300px;left:30%;bottom:-80px;
  background:radial-gradient(circle at 50% 50%, rgba(10,157,110,.8) 0%, rgba(10,157,110,.28) 45%, transparent 70%);
  animation-delay:-12s;
}
@keyframes orb-float{
  0%,100%{transform:translate(0,0) scale(1);}
  33%{transform:translate(40px,-30px) scale(1.08);}
  66%{transform:translate(-30px,20px) scale(.96);}
}

/* 通用按钮 */
.btn{
  width:100%;padding:12px 16px;border-radius:14px;border:none;
  font-weight:600;cursor:pointer;font-size:14px;font-family:inherit;
  transition:background .15s,opacity .15s,transform .1s;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
.btn-primary{background:var(--blue);color:#fff;position:relative;overflow:hidden;}
.btn-primary:hover{filter:brightness(1.1);}
.btn-primary:active{transform:scale(.97);background:var(--blue-press);}
.btn-primary::after{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle, rgba(255,255,255,.25) 0%, transparent 55%);
  pointer-events:none;
}
.btn-outline{background:var(--tint-b);color:var(--text);border:1px solid var(--border);}
.btn-outline:hover{background:var(--tint-c);}
.btn-secondary{background:var(--tint-b);color:var(--text);border:1px solid var(--border);}
.btn-ghost{background:transparent;color:var(--text2);border:1px solid var(--border);}
.btn-ghost:hover{background:var(--tint-b);color:var(--text);}
.btn-danger{background:rgba(255,69,58,.12);color:var(--red);border:1px solid rgba(255,69,58,.25);}
.btn-danger:hover{background:rgba(255,69,58,.2);}
.btn:disabled{opacity:.55;cursor:not-allowed;}
.btn-sm{padding:7px 12px;font-size:12.5px;}
.btn svg{width:15px;height:15px;}

/* 图标按钮 */
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--border);
  background:var(--tint-a);color:var(--text);cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background .15s;
}
.icon-btn:hover{background:var(--tint-c);}
.icon-btn svg{width:18px;height:18px;}

/* 输入框 */
.input,.input-glass{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--border);
  background:var(--tint-b);color:var(--text);font-size:14px;outline:none;font-family:inherit;
  transition:border-color .15s,background .15s;
}
.input:focus,.input-glass:focus{border-color:var(--blue);background:var(--tint-c);}
.input::placeholder,.input-glass::placeholder{color:var(--text3);}

/* 玻璃拟态 */
.glass{
  position:relative;overflow:hidden;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
}
.glass::before{
  content:'';position:absolute;top:-60%;left:-60%;width:220%;height:220%;
  background:radial-gradient(circle at 30% 30%, rgba(255,255,255,.10) 0%, transparent 55%);
  pointer-events:none;z-index:0;
}
.glass > *{position:relative;z-index:1;}

/* 弹窗 */
.modal-overlay{
  position:fixed;inset:0;z-index:200;
  background:var(--overlay-bg);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;
  padding:20px;
  animation:fadeIn .2s ease;
}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
.modal{
  background:var(--modal-bg);
  border:1px solid var(--border-2);
  border-radius:var(--radius-xl);
  padding:24px;
  width:100%;max-width:480px;
  max-height:85vh;overflow-y:auto;
  box-shadow:var(--shadow-heavy);
  animation:slideUp .25s var(--ease);
}
.modal-lg{max-width:720px;}
.modal-xl{max-width:920px;}
@keyframes slideUp{from{transform:translateY(20px) scale(.97);opacity:0;}to{transform:none;opacity:1;}}
.modal-title{font-size:18px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.modal-title h3{margin:0;font-size:17px;}
.modal-desc{font-size:13px;color:var(--text2);margin-bottom:18px;line-height:1.6;}
.modal-actions{display:flex;gap:10px;margin-top:20px;justify-content:flex-end;flex-wrap:wrap;}
.modal-actions .btn{width:auto;flex:0 0 auto;padding:10px 18px;min-width:90px;}
.modal-close{
  width:32px;height:32px;border-radius:10px;border:none;background:var(--tint-b);color:var(--text2);
  cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s;
}
.modal-close:hover{background:var(--tint-c);color:var(--text);}

/* Toast — 顶部悬浮小卡片：22px 彩色圆角图标底 + 正常文字色，无左侧彩边、无过冲动画 */
.toast-wrap{
  position:fixed;top:max(12px, env(safe-area-inset-top));left:50%;transform:translateX(-50%);
  z-index:600;display:flex;flex-direction:column;gap:8px;align-items:center;
  pointer-events:none;max-width:min(92vw,420px);
}
.toast{
  background:var(--toast-bg);
  border:1px solid var(--border-2);
  color:var(--text);
  padding:8px 16px 8px 8px;border-radius:14px;
  font-size:13px;font-weight:500;line-height:1.55;
  box-shadow:var(--toast-shadow);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  opacity:0;
  display:flex;align-items:flex-start;gap:9px;
  animation:toast-in .26s var(--ease) forwards;
}
.toast .t-ico{
  width:22px;height:22px;border-radius:7px;flex:0 0 22px;margin-top:1px;
  display:flex;align-items:center;justify-content:center;
}
.toast .t-ico svg{width:13px;height:13px;stroke:#fff;fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;display:block;}
.toast .t-msg{flex:1;min-width:0;word-break:break-word;}
.toast.ok .t-ico{background:var(--green);}
.toast.error .t-ico{background:var(--red);}
.toast.warn .t-ico{background:var(--warn);}
.toast:not(.ok):not(.error):not(.warn) .t-ico{background:var(--blue);}
@keyframes toast-in{
  from{opacity:0;transform:translateY(-8px);}
  to{opacity:1;transform:translateY(0);}
}
.toast.hide{animation:toast-out .22s var(--ease) forwards;}
@keyframes toast-out{
  from{opacity:1;transform:translateY(0);}
  to{opacity:0;transform:translateY(-6px);}
}
@media (prefers-reduced-motion: reduce){
  .toast{animation-duration:.01s;}
  .toast.hide{animation-duration:.01s;}
}

/* 空状态 */
.empty-state{
  padding:60px 24px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-icon{
  width:72px;height:72px;border-radius:50%;
  background:var(--tint-b);
  display:flex;align-items:center;justify-content:center;color:var(--text3);
  font-size:32px;
}
.empty-icon svg{width:32px;height:32px;}
.empty-title{font-size:15px;font-weight:600;color:var(--text);}
.empty-desc{font-size:12.5px;color:var(--text2);max-width:320px;line-height:1.6;}

/* 弹入动画 */
@keyframes pop{0%{opacity:0;transform:scale(.92);}100%{opacity:1;transform:scale(1);}}
.pop{animation:pop .25s var(--ease);}

/* 滚动条 */
*::-webkit-scrollbar{width:8px;height:8px;}
*::-webkit-scrollbar-thumb{background:var(--tint-c);border-radius:4px;}
*::-webkit-scrollbar-track{background:transparent;}

/* 工具提示 */
.tooltip-wrap{position:relative;display:inline-flex;}
.tooltip-wrap[data-tip]:hover::after{
  content:attr(data-tip);position:absolute;
  bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);
  padding:5px 10px;border-radius:8px;
  background:var(--modal-bg);color:var(--text);
  font-size:11.5px;white-space:nowrap;
  border:1px solid var(--border-2);
  box-shadow:var(--shadow-card);
  z-index:100;pointer-events:none;
  animation:pop .2s var(--ease);
}

/* 主题切换面板（圆点指示器） */
.tp-dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--blue);margin-left:4px;vertical-align:middle;
}
/* 主题切换弹层 */
.theme-pop{
  position:absolute;top:calc(100% + 8px);right:0;z-index:80;
  min-width:200px;padding:12px;
  background:var(--modal-bg);border:1px solid var(--border-2);
  border-radius:14px;box-shadow:var(--shadow-heavy);
  animation:pop .2s var(--ease);
}
.tp-title{font-size:11px;color:var(--text3);text-transform:uppercase;letter-spacing:.04em;font-weight:600;padding:4px 6px;margin-top:6px;}
.tp-title:first-child{margin-top:0;}
.tp-seg{display:flex;gap:4px;background:var(--tint-a);border:1px solid var(--border);border-radius:10px;padding:3px;margin-bottom:8px;}
.tp-seg button{
  flex:1;padding:7px 10px;border:none;border-radius:8px;background:transparent;color:var(--text2);
  font-size:12.5px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .15s;
}
.tp-seg button.active{background:var(--blue);color:#fff;}
.tp-swatches{display:flex;gap:8px;padding:4px;}
.tp-swatches button{
  width:30px;height:30px;border-radius:50%;border:2px solid var(--border-2);
  cursor:pointer;padding:0;transition:transform .15s,border-color .15s;
}
.tp-swatches button.active{border-color:var(--text);transform:scale(1.1);}

/* 列表交错入场 */
@keyframes list-in{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}
.list-in > *{animation:list-in .3s var(--ease) backwards;}
.list-in > *:nth-child(1){animation-delay:0s;}
.list-in > *:nth-child(2){animation-delay:.03s;}
.list-in > *:nth-child(3){animation-delay:.06s;}
.list-in > *:nth-child(4){animation-delay:.09s;}
.list-in > *:nth-child(5){animation-delay:.12s;}
.list-in > *:nth-child(6){animation-delay:.15s;}
.list-in > *:nth-child(7){animation-delay:.18s;}
.list-in > *:nth-child(8){animation-delay:.21s;}
.list-in > *:nth-child(9){animation-delay:.24s;}
.list-in > *:nth-child(10){animation-delay:.27s;}

/* 通用栅格 */
.col{display:flex;flex-direction:column;}
.row{display:flex;align-items:center;gap:8px;}
.flex1{flex:1;min-width:0;}
.muted{color:var(--text2);}
.tiny{font-size:11.5px;}
.hide{display:none !important;}

/* 视图切换时的过渡容器 */
.view-anim{animation:slideIn .25s var(--ease);}
@keyframes slideIn{from{opacity:0;transform:translateX(10px);}to{opacity:1;transform:none;}}

/* 响应式 */
@media (max-width:960px){
  .desktop-only{display:none !important;}
}
@media (min-width:961px){
  .mobile-only{display:none !important;}
}