:root{--ts-green:#1f7a4d;--ts-green2:#eaf6ef;--ts-ink:#17212b;--ts-muted:#647381;--ts-line:#dfe5e9;--ts-bg:#f5f7f8}
body{font-family:Arial,Helvetica,sans-serif;color:var(--ts-ink);background:#fff;font-size:15px}
.ts-top{background:#123e2b;color:#fff;font-size:.82rem}.ts-brand{font-weight:800;letter-spacing:-.04em;font-size:1.55rem}.ts-brand span{color:#66d494}
.ts-nav{background:#fff;border-bottom:1px solid var(--ts-line);box-shadow:0 2px 9px rgba(20,35,45,.05)}
.ts-nav .nav-link{color:#33414c;font-weight:600}.ts-nav .nav-link:hover{color:var(--ts-green)}
.ts-search{background:#f1f4f5;border:1px solid #e0e5e8;border-radius:8px}
.breadcrumb{font-size:.82rem}.breadcrumb a{color:var(--ts-green);text-decoration:none}
.hero{background:linear-gradient(135deg,#f0f8f3,#fff 58%);border-bottom:1px solid var(--ts-line)}
.hero h1{font-weight:800;letter-spacing:-.035em}.hero p{color:var(--ts-muted);max-width:720px}
.category-card{height:100%;border:1px solid var(--ts-line);border-radius:10px;background:#fff;transition:.15s;overflow:hidden}
.category-card:hover{border-color:#9bcbb0;box-shadow:0 8px 24px rgba(24,75,48,.08);transform:translateY(-2px)}
.cat-head{padding:15px 17px;background:#f8faf9;border-bottom:1px solid var(--ts-line);font-weight:800;display:flex;justify-content:space-between}
.cat-head span{color:var(--ts-green)}.tool-links{padding:12px 17px}.tool-links a{display:block;color:#265b42;text-decoration:none;padding:5px 0}.tool-links a:hover{text-decoration:underline}
.sidebar-card{border:1px solid var(--ts-line);border-radius:10px;overflow:hidden;background:#fff}.sidebar-title{background:#173e2c;color:#fff;font-weight:800;padding:11px 14px}
.sidebar-card a{display:block;padding:8px 13px;border-bottom:1px solid #edf0f2;color:#3b4a55;text-decoration:none}.sidebar-card a:hover{background:#f0f7f3;color:#17613b}
.ad{min-height:92px;border:1px dashed #cfd6da;background:#fafbfb;color:#9aa5ad;display:flex;align-items:center;justify-content:center;font-size:.72rem;letter-spacing:.12em;border-radius:7px}
.converter{border:1px solid #cfd8dd;border-radius:10px;overflow:hidden;background:#fff;box-shadow:0 5px 22px rgba(20,35,45,.06)}
.converter-head{background:#173e2c;color:#fff;padding:13px 17px;font-weight:800}.converter-body{padding:20px}
.form-label{font-weight:700;font-size:.88rem}.form-control,.form-select{border-color:#cbd4da}.form-control:focus,.form-select:focus{border-color:#63a881;box-shadow:0 0 0 .2rem rgba(31,122,77,.12)}
.btn-ts{background:var(--ts-green);border-color:var(--ts-green);color:#fff;font-weight:700}.btn-ts:hover{background:#17623d;color:#fff}
.swap-btn{width:42px;height:42px;border-radius:50%;border:1px solid #ccd6db;background:#fff}.result-box{background:#f0f8f3;border:1px solid #c7e1d1;border-radius:8px;padding:16px}
.result-main{font-size:1.45rem;font-weight:800;color:#145b37;word-break:break-all}
.ref-section{border-top:1px solid var(--ts-line);padding-top:24px;margin-top:28px}.ref-section h2{font-size:1.35rem;font-weight:800}.formula{background:#f7f9fa;border-left:4px solid var(--ts-green);padding:14px 16px;font-family:Consolas,monospace}
.table thead th{background:#f2f5f6}.section-title{font-weight:800;letter-spacing:-.02em}
footer{background:#15221b;color:#b7c3bc;margin-top:60px}footer a{color:#d7e6dc;text-decoration:none}
.tool-chip{display:inline-block;padding:6px 10px;border:1px solid #dce4df;border-radius:999px;color:#276144;text-decoration:none;background:#fff;margin:3px}.tool-chip:hover{background:#edf7f1}
@media(max-width:991px){.desktop-side{display:none}}

.calc-pill{display:inline-block;background:#f2f6f4;border:1px solid #d7e2dc;padding:6px 10px;border-radius:999px;margin:3px}.mini-ref{font-size:.85rem;color:#6a7780}

/* V8 visual refresh */
.ts-top{background:linear-gradient(90deg,#0d3d2b,#12633f);color:#fff}
.ts-top .container{padding-top:.65rem;padding-bottom:.65rem}
.ts-top-message{font-weight:600;letter-spacing:.01em}
.ts-top-message small{font-weight:400;opacity:.82;margin-left:.55rem}

.tool-icon{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;
border-radius:8px;background:#eaf6ef;color:#146c43;font-size:15px;flex:0 0 auto}
.tool-title-with-icon{display:flex;align-items:center;gap:9px}

.conversion-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}
.conversion-tile{min-height:142px;border:1px solid #d8e1e5;border-radius:12px;background:#fff;
display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
padding:18px 10px;text-decoration:none;color:#17232b;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.conversion-tile:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(16,70,48,.10);
border-color:#9bc9ad;color:#0b5d37}
.conversion-tile .tile-icon{width:52px;height:52px;border-radius:14px;background:#edf7f1;color:#147447;
display:flex;align-items:center;justify-content:center;font-size:25px;margin-bottom:11px}
.conversion-tile strong{font-size:.98rem}
.conversion-tile span{font-size:.76rem;color:#748087;margin-top:3px}

.site-footer{margin-top:56px;background:#10261e;color:#dbe8e1}
.site-footer a{color:#dbe8e1;text-decoration:none}.site-footer a:hover{color:#fff;text-decoration:underline}
.site-footer-main{padding:34px 0 24px}
.footer-brand{font-size:1.25rem;font-weight:800;color:#fff}
.footer-copy{max-width:520px;color:#aebfb6;font-size:.9rem;margin-top:7px}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;font-size:.88rem}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:14px 0;color:#91a69b;font-size:.8rem}

@media(max-width:1199px){.conversion-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:767px){.conversion-grid{grid-template-columns:repeat(3,1fr)}.ts-top-message small{display:none}}
@media(max-width:480px){.conversion-grid{grid-template-columns:repeat(2,1fr)}}

/* V9: global navigation, conversion directory, full-width footer */
body{min-height:100vh;display:flex;flex-direction:column}
main{flex:1 0 auto}
.site-footer{
  width:100%;
  max-width:none;
  margin:56px 0 0;
  flex-shrink:0;
  background:#10261e;
}
.site-footer .container{max-width:1320px;margin-left:auto;margin-right:auto}
.conversion-tile{min-height:165px;padding:24px 12px}
.conversion-tile .tile-icon{width:66px;height:66px;border-radius:17px;font-size:32px;margin-bottom:14px}
.conversion-tile strong{font-size:1.12rem;font-weight:750}
.ts-navbar{background:#fff;border-bottom:1px solid #dfe6e2}
.ts-navbar .navbar-brand{font-size:1.65rem;font-weight:850;letter-spacing:-.04em;color:#111!important}
.ts-navbar .brand-tool{color:#087443}
.ts-navbar .nav-link{font-weight:600;color:#26332d}
.ts-navbar .nav-link:hover,.ts-navbar .nav-link.active{color:#087443}

/* V10 canonical top strip and footer */
.ts-top{width:100%;background:#0d5b3a;color:#fff}
.ts-top .container{min-height:42px;padding-top:8px;padding-bottom:8px}
.ts-top-message{display:flex;align-items:center;gap:10px;min-width:0}
.ts-top-message strong{font-size:.88rem;white-space:nowrap}
.ts-top-message span{font-size:.76rem;opacity:.84}
.ts-top-note{font-size:.75rem;font-weight:600;opacity:.88;white-space:nowrap}
.site-footer{width:100%;margin-top:56px;background:#10261e;color:#dbe8e1}
.site-footer-main{padding-top:34px;padding-bottom:34px}
.site-footer .brand-tool{color:#43df8c}
.footer-brand{font-size:1.35rem;font-weight:850;color:#fff}
.footer-copy{max-width:540px}
.content-page{max-width:980px;margin:0 auto}
.page-kicker{font-size:.78rem;letter-spacing:.12em;font-weight:800;color:#087443}
.info-panel{border:1px solid #dce4e0;border-radius:12px;padding:22px;background:#fff}
@media(max-width:767px){
 .ts-top-message{display:block}.ts-top-message strong{display:block;white-space:normal}.ts-top-message span{display:none}
}

/* V11 */
.ts-top{background:#173e2c!important}
.ts-top .container{min-height:36px!important;padding-top:6px!important;padding-bottom:6px!important}
.ts-top-message{font-size:.78rem!important;font-weight:600}
.site-footer{width:100vw!important;max-width:none!important;margin-left:calc(50% - 50vw)!important;margin-right:calc(50% - 50vw)!important;box-sizing:border-box}
.tool-category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.tool-category-card{display:block;border:1px solid #dce4e0;border-radius:12px;padding:20px;background:#fff;text-decoration:none;color:#17232b;transition:.15s;min-height:145px}
.tool-category-card:hover{transform:translateY(-2px);border-color:#9bc9ad;box-shadow:0 8px 20px rgba(16,70,48,.08)}
.tool-category-card .cat-icon{width:44px;height:44px;border-radius:12px;background:#edf7f1;color:#087443;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;margin-bottom:14px}
.tool-category-card h3{font-size:1rem;margin:0 0 5px}.tool-category-card p{font-size:.82rem;color:#6b7771;margin:0}
.tool-category-card .status{display:inline-block;margin-top:10px;font-size:.72rem;font-weight:700;color:#087443}
.tool-category-card.coming{opacity:.68}.tool-category-card.coming .status{color:#7a8580}
@media(max-width:991px){.tool-category-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:767px){.tool-category-grid{grid-template-columns:repeat(2,1fr)}}

/* V12 structure */
html,body{min-height:100%}
body{min-height:100vh;display:flex;flex-direction:column}
main{flex:1 0 auto}
.site-footer{margin-top:auto!important}

/* Homepage: exactly 5 category cards per row on desktop */
.home-category-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.home-category-card{min-height:128px;border:1px solid #d8e1dd;border-radius:12px;background:#fff;
display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
text-decoration:none;color:#17232b;padding:18px 10px;transition:.15s ease}
.home-category-card:hover{transform:translateY(-3px);border-color:#91c5a6;box-shadow:0 8px 20px rgba(16,70,48,.09);color:#087443}
.home-category-icon{width:54px;height:54px;border-radius:15px;background:#edf7f1;color:#087443;
display:flex;align-items:center;justify-content:center;font-size:25px;font-weight:800;margin-bottom:11px}
.home-category-card strong{font-size:.96rem}

/* Conversion directory: exactly 4 per row on desktop */
.conversion-grid{grid-template-columns:repeat(4,minmax(0,1fr))!important}
@media(max-width:991px){
 .home-category-grid{grid-template-columns:repeat(3,1fr)}
 .conversion-grid{grid-template-columns:repeat(3,1fr)!important}
}
@media(max-width:767px){
 .home-category-grid{grid-template-columns:repeat(2,1fr)}
 .conversion-grid{grid-template-columns:repeat(2,1fr)!important}
}

/* V13 */
.home-hero{background:linear-gradient(180deg,#f8fbf9 0%,#fff 100%);border-bottom:1px solid #e3ebe7}
.home-hero h1{max-width:820px;letter-spacing:-.035em}
.home-hero .lead{max-width:850px;line-height:1.65}
.home-category-icon{font-family:Arial,sans-serif}

/* V15 Color Tools landing */
.color-tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;max-width:920px}
.color-tool-card{display:flex;align-items:center;gap:18px;border:1px solid #d8e1dd;border-radius:14px;padding:24px;background:#fff;color:#17232b;text-decoration:none;transition:.15s}
.color-tool-card:hover{border-color:#8fc3a4;box-shadow:0 8px 22px rgba(16,70,48,.08);transform:translateY(-2px);color:#087443}
.color-tool-icon{width:64px;height:64px;flex:0 0 64px;border-radius:16px;background:#edf7f1;color:#087443;display:flex;align-items:center;justify-content:center;font-size:30px}
.color-tool-card h2{font-size:1.08rem;margin:0 0 5px}.color-tool-card p{font-size:.86rem;color:#6b7771;margin:0}
@media(max-width:767px){.color-tool-grid{grid-template-columns:1fr}}

/* V16 Encryption Tools */
.encryption-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.encryption-card{display:flex;gap:14px;align-items:flex-start;border:1px solid #d8e1dd;border-radius:12px;padding:18px;text-decoration:none;color:#17232b;background:#fff;transition:.15s}
.encryption-card:hover{transform:translateY(-2px);border-color:#91c5a6;box-shadow:0 7px 18px rgba(16,70,48,.08);color:#087443}
.encryption-icon{width:44px;height:44px;flex:0 0 44px;border-radius:12px;background:#edf7f1;color:#087443;display:flex;align-items:center;justify-content:center;font-size:22px}
.encryption-card h2{font-size:.98rem;margin:0 0 5px}.encryption-card p{font-size:.8rem;color:#6b7771;margin:0}
.crypto-panel{border:1px solid #d8e1dd;border-radius:12px;padding:22px;background:#fff}
@media(max-width:991px){.encryption-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.encryption-grid{grid-template-columns:1fr}}

/* V17 Encryption page width */
.crypto-panel{width:100%}

/* V19 encryption form order */
.crypto-panel #cryptoOptions{padding-top:4px}

.tool-panel{border:1px solid #d8e0dc;border-radius:10px;padding:18px;background:#fff}.tool-area{min-height:180px}.tool-output{min-height:150px;background:#fff}.option-label{font-weight:600;font-size:.9rem}
.result-row{display:grid;grid-template-columns:150px 1fr auto;align-items:center;border:1px solid #dee2e6;border-bottom:0}.result-row:last-child{border-bottom:1px solid #dee2e6}.result-row>*{padding:.65rem .8rem}.result-row .name{border-right:1px solid #dee2e6;font-weight:600}
.drop-zone{border:2px dashed #cbd8d2;border-radius:10px;padding:52px 20px;text-align:center;cursor:pointer;background:#fbfdfc}.jwt-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.jwt-box{border:1px solid #dee2e6}.jwt-box h3{font-size:.9rem;background:#f5f6f6;padding:10px;margin:0}.jwt-box pre{min-height:130px;padding:12px;white-space:pre-wrap}@media(max-width:768px){.jwt-grid{grid-template-columns:1fr}.result-row{grid-template-columns:110px 1fr}}

/* V23 OTP */
.otp-panel{border:1px solid #d8e0dc;border-radius:12px;background:#fff;padding:20px}
.otp-result-table{max-width:620px;border:1px solid #dee2e6}
.otp-result-head,.otp-result-values{display:grid;grid-template-columns:repeat(3,1fr)}
.otp-result-head span{padding:10px 12px;background:#f5f6f6;border-right:1px solid #dee2e6;font-size:.85rem}
.otp-result-head span:last-child{border-right:0}
.otp-code{border:0;border-right:1px solid #dee2e6;background:#fff;text-align:left;padding:14px 12px;font-family:monospace;font-size:1.05rem}
.otp-code:last-child{border-right:0}.otp-code:hover{background:#f4fbf7}.otp-code-current{font-size:1.45rem;color:#009b72}
.otp-result-table .progress{height:4px;margin:10px 12px 0}.otp-qr-box{display:inline-block;padding:12px;border:1px solid #dee2e6;background:#fff;min-width:206px;min-height:206px}
#otpQr canvas,#otpQr img{display:block;max-width:180px;width:180px;height:180px}
@media(max-width:576px){.otp-panel{padding:14px}.otp-code{font-size:.9rem;padding:12px 8px}.otp-code-current{font-size:1.15rem}}

/* V26 stable OTP QR */
#otpQr>img{display:block!important;width:180px!important;height:180px!important;max-width:180px!important}

/* V27 reference-tool parity */
.browser-note{border-left:4px solid #009b72;background:#f3f3f3;padding:16px 14px;color:#111}
.pw-result-grid{display:grid;grid-template-columns:150px 1fr;border:1px solid #dee2e6;border-bottom:0}.pw-result-grid>div{padding:10px 14px;border-bottom:1px solid #dee2e6}.pw-result-grid>div:nth-child(odd){font-weight:700;border-right:1px solid #dee2e6}.pw-stars{font-size:1.35rem;color:#ff5733;letter-spacing:2px}.basic-field-row{display:grid;grid-template-columns:110px 1fr;border:1px solid #dee2e6}.basic-field-row>div{padding:9px 12px;border-right:1px solid #dee2e6}.basic-field-row input{min-height:38px}.nav-tabs .nav-link{color:#111}.nav-tabs .nav-link.active{font-weight:600}
@media(max-width:576px){.pw-result-grid{grid-template-columns:105px 1fr}.basic-field-row{grid-template-columns:90px 1fr}}


/* V28 result actions */
.result-box{border:1px solid #dee2e6;background:#fff;position:relative}
.result-box-head{min-height:42px;padding:9px 92px 9px 14px;border-bottom:1px solid #dee2e6;font-weight:600;position:relative;background:#fff}
.result-copy-btn{position:absolute;right:8px;top:6px;padding:.25rem .65rem;font-size:.82rem}
.result-box-body{min-height:80px;padding:14px;white-space:pre-wrap;word-break:break-word}
.result-row{position:relative}
.result-row .result-copy-btn{position:static;margin-right:8px}
.rsa-section{border:1px solid #d8e0dc;border-radius:10px;padding:18px;background:#fff;height:100%}
.rsa-output-wrap{position:relative}
.rsa-output-wrap textarea{padding-right:82px}
.rsa-output-wrap .result-copy-btn{z-index:2}
.encryption-icon i{font-size:21px;line-height:1}