/* totp-tools — modern multi-tool stylesheet */
*,*::before,*::after{box-sizing:border-box}

:root{
  /* core palette (light) */
  --bg:#eef3f8;
  --bg-mesh-1:#74ebd5;
  --bg-mesh-2:#acb6e5;
  --bg-mesh-3:#fde4cf;
  --panel:rgba(255,255,255,.86);
  --panel-solid:#ffffff;
  --panel-2:#f3f6fa;
  --panel-3:#e9eef4;
  --border:rgba(80,170,120,.40);
  --border-strong:rgba(50,174,77,.85);
  --border-soft:rgba(0,0,0,.06);
  --text:#2c3a4a;
  --text-strong:#0f1620;
  --muted:#5e6e80;
  --accent:#009688;
  --accent-2:#00d708;
  --accent-3:#00b8c6;
  --danger:#ff6767;
  --danger-2:#ae4c1a;
  --warn:#ffb020;
  --shadow:0 8px 28px rgba(31,45,66,.10);
  --shadow-lg:0 16px 40px rgba(31,45,66,.14);
  --radius:16px;
  --radius-sm:10px;
}

html[data-theme="dark"], html[data-theme="auto"] {
  /* dark variant — default applied via prefers-color-scheme below for auto */
}
@media (prefers-color-scheme: dark){
  html[data-theme="auto"]{
    --bg:#0d1117;
    --bg-mesh-1:#1d3b6a;
    --bg-mesh-2:#5a2480;
    --bg-mesh-3:#143a3a;
    --panel:rgba(28,33,42,.86);
    --panel-solid:#1a2028;
    --panel-2:#222934;
    --panel-3:#2a313d;
    --border:rgba(80,180,130,.30);
    --border-strong:rgba(80,200,140,.80);
    --border-soft:rgba(255,255,255,.06);
    --text:#e6ecf3;
    --text-strong:#ffffff;
    --muted:#9aa7b8;
    --shadow:0 10px 32px rgba(0,0,0,.45);
    --shadow-lg:0 18px 44px rgba(0,0,0,.55);
  }
}
html[data-theme="dark"]{
  --bg:#0d1117;
  --bg-mesh-1:#1d3b6a;
  --bg-mesh-2:#5a2480;
  --bg-mesh-3:#143a3a;
  --panel:rgba(28,33,42,.86);
  --panel-solid:#1a2028;
  --panel-2:#222934;
  --panel-3:#2a313d;
  --border:rgba(80,180,130,.30);
  --border-strong:rgba(80,200,140,.80);
  --border-soft:rgba(255,255,255,.06);
  --text:#e6ecf3;
  --text-strong:#ffffff;
  --muted:#9aa7b8;
  --shadow:0 10px 32px rgba(0,0,0,.45);
  --shadow-lg:0 18px 44px rgba(0,0,0,.55);
}

html,body{margin:0;padding:0;min-height:100%}
body{
  font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:var(--bg);
  word-break:break-word;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  position:relative;
  min-height:100vh;
}
/* mesh background blobs */
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:-1;
  background:
    radial-gradient(60vmax 50vmax at 10% 10%, var(--bg-mesh-1) 0%, transparent 60%),
    radial-gradient(50vmax 50vmax at 90% 20%, var(--bg-mesh-2) 0%, transparent 60%),
    radial-gradient(50vmax 50vmax at 50% 110%, var(--bg-mesh-3) 0%, transparent 60%);
  opacity:.5;
  filter:saturate(.85);
  animation:bgshift 40s ease-in-out infinite alternate;
}
@keyframes bgshift{
  0%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(2%,-1%,0) scale(1.03)}
  100%{transform:translate3d(-2%,2%,0) scale(1.02)}
}

a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
hr{border:0;border-top:1px solid var(--border-soft);margin:20px 0;width:100%}

/* Layout */
.layout{max-width:1180px;margin:0 auto;padding:24px 16px;display:grid;grid-template-columns:240px 1fr;gap:20px;min-height:100vh}
@media (max-width:820px){.layout{grid-template-columns:1fr}}

main{display:flex;flex-direction:column;gap:18px;animation:fadeIn .35s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* Sidebar */
.sidebar{
  position:sticky;top:24px;align-self:start;
  background:var(--panel);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  backdrop-filter:saturate(160%) blur(14px);
  border:1px solid var(--border-soft);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:14px 10px 12px;
}
.sidebar .brand{display:flex;align-items:center;gap:10px;padding:6px 12px 12px;font-weight:700;font-size:15px;color:var(--text-strong)}
.sidebar .brand-dot{width:14px;height:14px;border-radius:50%;
  background:linear-gradient(142deg,var(--accent) 0%,var(--accent-2) 100%);
  box-shadow:0 0 0 4px rgba(0,200,80,.10)}
.sidebar nav{display:flex;flex-direction:column;gap:2px}
.sidebar nav a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  color:var(--muted);font-weight:500;transition:background .15s ease,color .15s ease,transform .12s ease;
}
.sidebar nav a:hover{background:var(--panel-2);color:var(--text);text-decoration:none;transform:translateX(2px)}
.sidebar nav a.active{
  background:linear-gradient(142deg,rgba(0,150,136,.16),rgba(0,215,8,.10));
  color:var(--accent);font-weight:700;
  box-shadow:inset 0 0 0 1px var(--border-strong)
}
.sidebar nav a .ico{width:18px;display:inline-flex;justify-content:center;font-size:16px}

.sidebar .side-tools{display:flex;justify-content:space-between;align-items:center;gap:6px;margin-top:10px;padding:8px 6px 0;border-top:1px solid var(--border-soft)}
.icon-btn{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--panel-2);border:1px solid var(--border-soft);border-radius:10px;cursor:pointer;
  color:var(--muted);font-size:16px;transition:all .15s ease;
}
.icon-btn:hover{color:var(--accent);border-color:var(--border-strong);transform:translateY(-1px)}
.icon-btn[aria-pressed="true"]{color:var(--accent);border-color:var(--border-strong)}

@media (max-width:820px){
  .sidebar{position:static;display:flex;align-items:center;gap:6px;overflow-x:auto;padding:8px 10px;
    -webkit-overflow-scrolling:touch;flex-wrap:nowrap}
  .sidebar .brand{padding:4px 6px 4px 4px;font-size:14px;flex-shrink:0}
  .sidebar .brand span:not(.brand-dot){display:none}
  .sidebar nav{flex-direction:row;flex:1;gap:2px;justify-content:space-between}
  .sidebar nav a{white-space:nowrap;padding:8px 8px;font-size:13px;flex:1;justify-content:center;min-width:0}
  .sidebar nav a .ico{display:none}
  .sidebar .side-tools{margin:0;padding:0;border:0;flex-shrink:0}
  .sidebar .side-tools .icon-btn{width:32px;height:32px}
}
@media (max-width:380px){
  .sidebar nav a{padding:8px 5px;font-size:12px}
}

/* Panel */
.panel{
  background:var(--panel);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  backdrop-filter:saturate(160%) blur(14px);
  border:1px solid var(--border-soft);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:24px;
}
.panel.hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(135deg, rgba(0,150,136,.10), rgba(0,215,8,.06) 60%, transparent),
    var(--panel);
}
.panel.hero::after{
  content:'';position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle, rgba(0,200,140,.15), transparent 70%);
  pointer-events:none;
}
.panel h1{font-size:1.7rem;margin:0 0 6px;color:var(--text-strong);font-weight:700;letter-spacing:-.01em}
.panel .lead{color:var(--muted);margin:0 0 6px;line-height:1.6}

.section{margin-bottom:6px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.row.tight{gap:6px}
.col{display:flex;flex-direction:column;gap:8px}

/* Inputs */
.input,.textarea,select{
  width:100%;background:var(--panel-2);border:0;border-radius:10px;color:var(--text);
  box-shadow:inset 0 0 0 1px var(--border);padding:11px 14px;outline:none;font-size:14px;
  font-weight:500;transition:box-shadow .15s ease,background .15s ease;
  font-family:inherit;
}
.input:focus,.textarea:focus,select:focus{box-shadow:inset 0 0 0 2px var(--border-strong);background:var(--panel-solid)}
.textarea{height:140px;resize:vertical;line-height:1.55}
.input.code-input,.textarea.code-input{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border:0;border-radius:10px;cursor:pointer;
  font-weight:600;font-size:14px;padding:10px 18px;color:#fff;
  background:linear-gradient(142deg,var(--accent) 0%,var(--accent-2) 100%);
  box-shadow:inset -2px -2px 4px rgba(0,0,0,.10),inset 2px 2px 4px rgba(255,255,255,.18),0 2px 6px rgba(0,150,136,.20);
  transition:transform .1s ease,box-shadow .15s ease,filter .15s ease;
}
.btn:hover{transform:translateY(-1px);filter:brightness(1.04)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.btn.ghost{
  background:transparent;color:var(--accent);
  box-shadow:inset 0 0 0 1px var(--border-strong);
}
.btn.ghost:hover{background:var(--panel-2);filter:none}
.btn.danger{background:linear-gradient(142deg,var(--danger) 0%,var(--danger-2) 100%);box-shadow:inset -2px -2px 4px rgba(0,0,0,.10),inset 2px 2px 4px rgba(255,255,255,.18),0 2px 6px rgba(255,80,80,.20)}
.btn.subtle{background:var(--panel-2);color:var(--text);box-shadow:inset 0 0 0 1px var(--border-soft)}
.btn.subtle:hover{background:var(--panel-3);filter:none}
.btn-sm{padding:6px 12px;font-size:12px;border-radius:8px}

/* Helpers */
.kv{display:flex;gap:8px;align-items:baseline;color:var(--muted);font-size:13px;margin:6px 0;flex-wrap:wrap}
.kv .label{min-width:90px;color:var(--muted)}
.kv .value{color:var(--text);font-weight:600;font-feature-settings:"tnum" 1;word-break:break-all}
.code{font:600 1.6rem/1.2 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--accent);letter-spacing:.18em}
.code.warn{color:var(--danger)}

footer.foot{margin-top:8px;color:var(--muted);text-align:center;font-size:12px;opacity:.85}

/* Notifications */
#notification-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:10px;max-width:calc(100vw - 40px)}
.notification{background:rgba(20,20,20,.92);color:#fff;padding:11px 16px;border-radius:10px;
  box-shadow:0 8px 24px rgba(0,0,0,.35);opacity:0;transform:translateX(100%);
  transition:opacity .35s ease,transform .35s ease;font-size:13px;max-width:300px}
.notification.show{opacity:1;transform:translateX(0)}

/* Modal */
.modal{display:none;position:fixed;inset:0;width:100%;height:100%;overflow:auto;background:rgba(0,0,0,.55);z-index:1000;
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.modal.open{display:block}
.modal-content{background:var(--panel-solid);color:var(--text);padding:24px;position:fixed;
  top:50%;left:50%;transform:translate(-50%,-50%);border-radius:var(--radius);
  max-width:340px;width:calc(100% - 32px);text-align:center;box-shadow:var(--shadow-lg);
  border:1px solid var(--border-soft);
  animation:modalIn .25s cubic-bezier(.2,.8,.3,1.05);
}
@keyframes modalIn{from{opacity:0;transform:translate(-50%,-46%) scale(.96)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}
.modal-content .close{position:absolute;top:8px;right:14px;font-size:24px;color:var(--muted);
  cursor:pointer;line-height:1;font-weight:700;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:8px;transition:all .15s ease}
.modal-content .close:hover{color:var(--text);background:var(--panel-2)}
#qrcode{width:240px;height:240px;margin:8px auto;display:block;background:#fff;padding:6px;border-radius:8px}
.qr-text{margin:14px 0 0;color:var(--muted);font-size:13px}

/* Tip box */
.tip{background:var(--panel-2);border-radius:10px;padding:14px;color:var(--muted);font-size:13px;line-height:1.7;
  border:1px solid var(--border-soft)}
.tip strong{color:var(--text)}
.tip .demo-key{cursor:pointer;color:var(--accent);font-weight:700}
.tip .demo-key:hover{text-decoration:underline}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:640px){.grid-2{grid-template-columns:1fr}}

img.preview,canvas.preview{max-width:100%;height:auto;border-radius:10px;display:block;border:1px solid var(--border-soft)}

.swap-row{display:flex;gap:10px;align-items:center}
.swap-row .input{flex:1}
.swap-row select{flex:0 0 130px}

table.rates{width:100%;border-collapse:collapse;margin-top:10px;font-size:13px}
table.rates th,table.rates td{padding:9px 10px;border-bottom:1px solid var(--border-soft);text-align:left}
table.rates th{color:var(--muted);font-weight:600}
table.rates tr:hover td{background:var(--panel-2)}

/* Tabs */
.tabs{display:flex;gap:4px;margin-bottom:14px;flex-wrap:wrap;
  background:var(--panel-2);padding:4px;border-radius:12px;border:1px solid var(--border-soft)}
.tab{padding:8px 14px;border-radius:9px;cursor:pointer;color:var(--muted);font-weight:600;font-size:13px;
  transition:all .15s ease;background:transparent}
.tab:hover{color:var(--text)}
.tab.active{
  color:var(--accent);background:var(--panel-solid);
  box-shadow:0 2px 6px rgba(0,0,0,.06),inset 0 0 0 1px var(--border-strong);
}

.text-counter{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-top:6px}
.text-counter span b{color:var(--text);font-weight:700}

.dropzone{border:2px dashed var(--border);border-radius:12px;padding:28px;text-align:center;color:var(--muted);
  background:var(--panel-2);transition:all .2s ease;cursor:pointer}
.dropzone.over{border-color:var(--border-strong);background:var(--panel-solid);transform:scale(1.01)}

.muted{color:var(--muted)}
.small{font-size:12px}
.center{text-align:center}
.flex{display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* button rows on narrow screens - keep 2 per row */
@media (max-width:520px){
  .panel > .row .btn:not(.btn-sm){flex:1 1 calc(50% - 5px);min-width:0}
}

/* ---------- 2FA multi-account cards ---------- */
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.search-input{flex:1;min-width:180px}

#list{display:flex;flex-direction:column;gap:14px}
.empty-state{padding:36px 20px;text-align:center;color:var(--muted)}
.empty-state .ico{font-size:46px;margin-bottom:8px;opacity:.7}

.acc-card{
  padding:18px;
  position:relative;
  transition:transform .15s ease,box-shadow .2s ease;
  cursor:default;
}
.acc-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.acc-row{display:flex;gap:14px;align-items:center;flex-wrap:nowrap}
.acc-meta{flex:1;min-width:0}

.acc-name{font-weight:700;font-size:15px;color:var(--text-strong);outline:none;
  padding:2px 6px;border-radius:6px;display:inline-block;max-width:100%;
  word-break:break-all;margin-left:-6px}
.acc-name:focus,.acc-name:hover{background:var(--panel-2)}
.acc-name:focus{box-shadow:inset 0 0 0 1px var(--border-strong)}
.acc-issuer{margin-bottom:6px}

.otp-block{display:flex;align-items:center;gap:14px;margin-top:6px}
.otp{font:700 2rem/1 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color:var(--accent);letter-spacing:.18em;font-feature-settings:"tnum" 1;cursor:pointer;
  transition:transform .12s ease}
.otp:hover{transform:scale(1.02)}
.otp.warn{color:var(--danger);animation:pulse 1s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.6}}

/* circular countdown ring */
.ring{flex-shrink:0;position:relative;width:48px;height:48px}
.ring svg{width:48px;height:48px;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:4;stroke-linecap:round}
.ring .ring-bg{stroke:var(--panel-3)}
.ring .ring-fg{stroke:var(--accent);transition:stroke-dashoffset 1s linear,stroke .2s ease}
.ring .ring-fg.warn{stroke:var(--danger)}
.ring .ring-text{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font:700 13px ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--text);font-feature-settings:"tnum" 1}
.ring .ring-text.warn{color:var(--danger)}

.acc-ctrl{display:flex;flex-wrap:wrap;gap:6px;align-items:flex-start}
@media (max-width:560px){
  .acc-row{flex-wrap:wrap}
  .acc-ctrl{width:100%;justify-content:flex-end}
}

.scanner{margin-top:14px}
.scanner video{width:100%;max-height:360px;background:#000;border-radius:12px;display:block;object-fit:cover}

/* ---------- helpers for "more" tools ---------- */
.color-swatch{
  width:80px;height:80px;border-radius:12px;border:1px solid var(--border-soft);
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.06);
  transition:background .15s ease;
}
.color-grid{display:grid;grid-template-columns:96px 1fr;gap:14px;align-items:center}
@media (max-width:540px){.color-grid{grid-template-columns:1fr}}

.jwt-section{background:var(--panel-2);border:1px solid var(--border-soft);border-radius:10px;padding:12px;margin-bottom:10px}
.jwt-section h4{margin:0 0 6px;color:var(--text-strong);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}
.jwt-section pre{margin:0;font:13px/1.5 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  white-space:pre-wrap;word-break:break-all;color:var(--text)}
.jwt-section.head{border-color:rgba(255,80,80,.4)}
.jwt-section.payload{border-color:rgba(0,150,136,.4)}
.jwt-section.sig{border-color:rgba(80,80,255,.4)}

label.flex{cursor:pointer;user-select:none}
input[type="checkbox"]{accent-color:var(--accent)}
input[type="range"]{accent-color:var(--accent)}