/* ==========================================================================
   Talk Assist — SEO / content pages shared stylesheet
   Reuses the Talk Assist landing-page design language (colours, type, easing).
   Loaded by: /talkassist/blog/, articles, and /talkassist/compare/*
   ========================================================================== */

:root{
  --ink:#0a1020;--muted:#697384;--paper:#f7f3ec;--paper2:#eee8de;
  --navy:#061426;--navy2:#0a2747;--blue:#1d5e91;--cyan:#92e0ea;
  --orange:#ffae35;--green:#38a189;--line:rgba(8,20,38,.12);
  --ease:cubic-bezier(.16,1,.3,1);--shadow:0 45px 110px rgba(4,16,31,.22);
  --maxw:1180px;--readw:720px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased;line-height:1.7;overflow-x:hidden;
}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
img{display:block;max-width:100%}
button{font:inherit}
h1,h2,h3,h4{letter-spacing:-.03em;line-height:1.1}

/* Skip link for keyboard users */
.ta-skip{position:absolute;left:-999px;top:0;z-index:200;background:var(--navy);color:#fff;padding:12px 18px;border-radius:0 0 12px 0;font-weight:800}
.ta-skip:focus{left:0}

:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}

/* reading progress bar */
.ta-progress{position:fixed;z-index:120;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange));box-shadow:0 0 18px rgba(146,224,234,.5)}

/* ---------------------------------------------------------------- header */
.ta-topbar{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:64px;padding:0 clamp(18px,4vw,48px);
  background:rgba(247,243,236,.86);backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(8,20,38,.08)}
.ta-brand{display:flex;align-items:center;gap:10px;font-weight:850;letter-spacing:-.025em;color:var(--ink)}
.ta-brand:hover{text-decoration:none}
.ta-brand img{width:34px;height:34px;border-radius:9px;box-shadow:0 8px 20px rgba(0,0,0,.16)}
.ta-nav{display:flex;align-items:center;gap:26px;font-size:13px;font-weight:750}
.ta-nav a{color:var(--ink);opacity:.72;transition:.2s}
.ta-nav a:hover{opacity:1;text-decoration:none}
.ta-nav a[aria-current="page"]{opacity:1;color:var(--blue)}
.ta-nav-cta{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:999px;
  background:var(--navy);color:#fff!important;opacity:1!important;font-weight:850}
.ta-nav-cta:hover{background:var(--navy2)}
.ta-nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.ta-nav-toggle i{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s var(--ease)}
.ta-nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.ta-nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.ta-nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media(max-width:820px){
  .ta-nav-toggle{display:flex}
  .ta-nav{position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(247,243,236,.98);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);
    padding:8px clamp(18px,4vw,48px) 18px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:.25s var(--ease)}
  .ta-nav.open{transform:none;opacity:1;pointer-events:auto}
  .ta-nav a{padding:13px 0;border-bottom:1px solid rgba(8,20,38,.07);font-size:15px}
  .ta-nav-cta{justify-content:center;margin-top:12px;height:48px}
}

/* ---------------------------------------------------------------- layout */
.ta-wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(18px,4vw,48px)}
main{display:block}

/* breadcrumb */
.ta-crumbs{max-width:var(--maxw);margin:0 auto;padding:20px clamp(18px,4vw,48px) 0;font-size:12.5px;color:var(--muted)}
.ta-crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.ta-crumbs li{display:flex;align-items:center;gap:6px}
.ta-crumbs li+li:before{content:"›";color:#aeb4bd}
.ta-crumbs a{color:var(--muted)}
.ta-crumbs a:hover{color:var(--blue)}
.ta-crumbs [aria-current="page"]{color:var(--ink);font-weight:700}

/* ---------------------------------------------------------------- article */
.ta-article{max-width:var(--maxw);margin:0 auto;padding:0 clamp(18px,4vw,48px) 40px}
.ta-article-head{max-width:var(--readw);margin:26px 0 8px}
.ta-eyebrow{text-transform:uppercase;letter-spacing:.14em;font-size:11px;font-weight:900;color:var(--blue);margin:0 0 14px}
.ta-article-head h1{font-size:clamp(34px,5vw,58px);margin:0 0 16px;letter-spacing:-.045em;line-height:1.03}
.ta-lead{font-size:clamp(17px,1.6vw,20px);color:#3a4655;margin:0 0 18px;line-height:1.6}
.ta-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:12.5px;color:var(--muted);
  padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ta-meta strong{color:var(--ink);font-weight:750}
.ta-pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:11px;font-weight:800;letter-spacing:.02em;color:#2a3644}

/* two-column: content + sticky TOC */
.ta-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:clamp(28px,5vw,64px);align-items:start;margin-top:28px}
/* content is the main column (wide, left), aligned with the article heading above;
   the DOM has the TOC first (for mobile stacking) so columns are placed explicitly. */
.ta-content{grid-column:1;grid-row:1;min-width:0;max-width:var(--readw)}
.ta-content>*{max-width:100%}
.ta-content h2{font-size:clamp(26px,3.2vw,36px);margin:46px 0 14px;scroll-margin-top:88px}
.ta-content h3{font-size:clamp(19px,2.2vw,23px);margin:30px 0 10px;scroll-margin-top:88px}
.ta-content p{margin:0 0 18px;color:#25303e}
.ta-content ul,.ta-content ol{margin:0 0 20px;padding-left:22px;color:#25303e}
.ta-content li{margin:0 0 9px}
.ta-content li::marker{color:var(--blue)}
.ta-content strong{color:var(--ink)}
.ta-content a{font-weight:600;text-decoration:underline;text-decoration-color:rgba(29,94,145,.3);text-underline-offset:3px}
.ta-content a:hover{text-decoration-color:var(--blue)}
.ta-content hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.ta-content figure{margin:26px 0}
.ta-content figcaption{font-size:12.5px;color:var(--muted);margin-top:8px;text-align:center}

/* sticky table of contents */
.ta-toc{grid-column:2;grid-row:1;position:sticky;top:84px;align-self:start;font-size:13px}
.ta-toc-inner{border-left:2px solid var(--line);padding:2px 0 2px 16px}
.ta-toc-title{text-transform:uppercase;letter-spacing:.12em;font-size:10.5px;font-weight:900;color:var(--muted);margin:0 0 12px}
.ta-toc ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.ta-toc a{color:var(--muted);font-weight:600;line-height:1.35;display:block}
.ta-toc a:hover{color:var(--blue);text-decoration:none}
.ta-toc a.active{color:var(--ink)}
@media(max-width:940px){
  .ta-layout{grid-template-columns:1fr}
  .ta-content{grid-column:auto;grid-row:auto;max-width:none}
  .ta-toc{grid-column:auto;grid-row:auto;position:static;top:auto;order:-1;margin-bottom:8px}
  .ta-toc-inner{border-left:0;border:1px solid var(--line);border-radius:16px;padding:16px 18px;background:#fff}
  .ta-toc details{margin:0}
  .ta-toc summary{cursor:pointer;font-weight:800;color:var(--ink);list-style:none}
  .ta-toc summary::-webkit-details-marker{display:none}
  .ta-toc summary:after{content:"▾";float:right;color:var(--muted)}
  .ta-toc ul{margin-top:12px}
}

/* callout / note boxes */
.ta-callout{margin:26px 0;padding:18px 20px;border-radius:16px;background:#fff;
  border:1px solid var(--line);box-shadow:0 10px 30px rgba(9,26,40,.05)}
.ta-callout p{margin:0 0 8px}.ta-callout p:last-child{margin:0}
.ta-callout .ta-callout-label{display:block;text-transform:uppercase;letter-spacing:.1em;font-size:10.5px;font-weight:900;margin:0 0 8px;color:var(--blue)}
.ta-callout.tip{background:#eef7f3;border-color:rgba(56,161,137,.28)}
.ta-callout.tip .ta-callout-label{color:#247a63}
.ta-callout.warn{background:#fff6e6;border-color:rgba(255,174,53,.4)}
.ta-callout.warn .ta-callout-label{color:#a86a08}
.ta-callout.safety{background:#fdeef0;border-color:rgba(211,74,90,.32)}
.ta-callout.safety .ta-callout-label{color:#b23a4a}

/* example dialogue block (reuses the "console" feel from the landing page) */
.ta-example{margin:26px 0;border-radius:20px;overflow:hidden;border:1px solid var(--line);
  background:#fff;box-shadow:0 18px 50px rgba(18,31,44,.08)}
.ta-example-bar{display:flex;align-items:center;gap:9px;padding:11px 16px;background:#081d35;color:#d6e2ec;font-size:11px;font-weight:800;letter-spacing:.02em}
.ta-example-bar i{width:7px;height:7px;border-radius:50%;background:var(--orange);flex:none}
.ta-example-body{padding:16px 18px;display:flex;flex-direction:column;gap:10px}
.ta-msg{max-width:86%;padding:11px 14px;border-radius:15px;font-size:14px}
.ta-msg small{display:block;font-size:8px;font-weight:900;letter-spacing:.12em;margin-bottom:4px;color:#2d8872}
.ta-msg strong{display:block;font-weight:700}
.ta-msg span{display:block;color:#76808a;font-size:12px;margin-top:3px}
.ta-msg.you{align-self:flex-start;background:#f2efe9;border-top-left-radius:5px}
.ta-msg.you small{color:#8a7a4a}
.ta-msg.them{align-self:flex-end;background:#e5f0ed;border-top-right-radius:5px}
.ta-msg.note{align-self:center;background:#fff0c7;border-radius:12px;text-align:center;max-width:100%}
.ta-msg.note small{color:#9a7b18}

/* comparison / data tables */
.ta-table-scroll{margin:26px 0;overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:18px;border:1px solid var(--line);background:#fff}
table.ta-table{border-collapse:collapse;width:100%;min-width:520px;font-size:14px}
table.ta-table caption{caption-side:top;text-align:left;padding:14px 16px;font-weight:800;color:var(--muted);font-size:12.5px}
table.ta-table th,table.ta-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.ta-table thead th{background:#081d35;color:#eaf2f8;font-size:12.5px;letter-spacing:.02em;position:sticky;top:0}
table.ta-table thead th:first-child{border-top-left-radius:0}
table.ta-table tbody th{font-weight:750;color:var(--ink);width:34%}
table.ta-table tbody tr:last-child td,table.ta-table tbody tr:last-child th{border-bottom:0}
table.ta-table td.ta-yes{color:#1f7a63;font-weight:750}
table.ta-table td.ta-partial{color:#a86a08;font-weight:700}
table.ta-table .ta-tick{font-weight:900;color:var(--green)}

/* ---------------------------------------------------------------- CTA */
.ta-cta{margin:34px 0;padding:26px clamp(20px,4vw,34px);border-radius:24px;color:#fff;position:relative;overflow:hidden;
  background:radial-gradient(circle at 78% 20%,#123c63 0%,#0a2340 42%,#061426 100%)}
.ta-cta:before{content:"";position:absolute;width:280px;height:280px;right:-90px;top:-120px;border-radius:50%;border:1px solid rgba(146,224,234,.16)}
.ta-cta h2,.ta-cta h3{margin:0 0 8px;color:#fff;font-size:clamp(22px,2.6vw,30px)}
.ta-cta p{margin:0 0 18px;color:#b8c5d4;max-width:52ch}
.ta-cta .ta-cta-note{font-size:12px;color:#8ba0b4;margin:14px 0 0}
.ta-store-buttons{display:flex;flex-wrap:wrap;gap:11px}
.ta-store-btn{display:inline-flex;align-items:center;gap:11px;height:56px;min-width:184px;padding:0 18px;border-radius:14px;
  background:#fff;color:#111!important;box-shadow:0 14px 34px rgba(0,0,0,.22);font-weight:700}
.ta-store-btn:hover{text-decoration:none;transform:translateY(-1px)}
.ta-store-btn .ta-store-icon{font-size:23px;line-height:1}
.ta-store-btn small{display:block;font-size:9px;letter-spacing:.04em;color:#555}
.ta-store-btn strong{display:block;font-size:17px;line-height:1}

/* inline mid-article CTA (lighter weight) */
.ta-cta.soft{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:0 16px 40px rgba(9,26,40,.06)}
.ta-cta.soft:before{border-color:var(--line)}
.ta-cta.soft h3{color:var(--ink)}
.ta-cta.soft p{color:var(--muted)}
.ta-cta.soft .ta-store-btn{border:1px solid var(--line);box-shadow:none}
.ta-cta.soft .ta-inline-link{display:inline-flex;align-items:center;gap:8px;font-weight:800;color:var(--blue)}

/* ---------------------------------------------------------------- flow diagram (AI interpreter vs translator) */
.ta-flow{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:30px 0}
.ta-flow-col{border-radius:22px;padding:22px;border:1px solid var(--line);background:#fff}
.ta-flow-col.alt{background:radial-gradient(circle at 80% 0,#123c63,#081d35);color:#fff;border-color:transparent}
.ta-flow-col h3{margin:0 0 4px;font-size:18px}
.ta-flow-col .ta-flow-sub{font-size:12px;color:var(--muted);margin:0 0 16px}
.ta-flow-col.alt .ta-flow-sub{color:#9fb4c6}
.ta-flow-steps{list-style:none;margin:0;padding:0;display:grid;gap:0}
.ta-flow-steps li{position:relative;padding:11px 14px;border-radius:12px;background:#f4f1ea;font-size:13.5px;font-weight:600}
.ta-flow-col.alt .ta-flow-steps li{background:rgba(255,255,255,.08);color:#eaf2f8}
.ta-flow-steps li+li{margin-top:26px}
.ta-flow-steps li+li:before{content:"↓";position:absolute;left:50%;top:-22px;transform:translateX(-50%);color:var(--blue);font-weight:900}
.ta-flow-col.alt .ta-flow-steps li+li:before{color:var(--cyan)}
.ta-flow-steps li.loop:before{content:"↻ repeat"}
.ta-flow-steps li.two:before{content:"↕"}
@media(max-width:640px){.ta-flow{grid-template-columns:1fr}}

/* ---------------------------------------------------------------- FAQ */
.ta-faq{margin:40px 0 0}
.ta-faq h2{margin-bottom:8px}
.ta-faq details{border:1px solid var(--line);border-radius:14px;background:#fff;margin:0 0 12px;overflow:hidden}
.ta-faq summary{cursor:pointer;list-style:none;padding:16px 18px;font-weight:750;color:var(--ink);display:flex;justify-content:space-between;gap:14px;align-items:center}
.ta-faq summary::-webkit-details-marker{display:none}
.ta-faq summary:after{content:"+";font-size:20px;color:var(--blue);flex:none;transition:.2s}
.ta-faq details[open] summary:after{transform:rotate(45deg)}
.ta-faq .ta-faq-a{padding:0 18px 18px;color:#25303e}
.ta-faq .ta-faq-a p{margin:0 0 10px}.ta-faq .ta-faq-a p:last-child{margin:0}

/* ---------------------------------------------------------------- related guides */
.ta-related{background:var(--paper2);border-top:1px solid var(--line);padding:52px 0}
.ta-related h2{max-width:var(--maxw);margin:0 auto 22px;padding:0 clamp(18px,4vw,48px);font-size:clamp(24px,3vw,32px)}
.ta-card-grid{max-width:var(--maxw);margin:0 auto;padding:0 clamp(18px,4vw,48px);
  display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.ta-card{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:22px;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.ta-card:hover{transform:translateY(-3px);box-shadow:0 22px 50px rgba(9,26,40,.1);text-decoration:none}
.ta-card .ta-card-icon{font-size:26px;margin-bottom:14px}
.ta-card .ta-card-cat{text-transform:uppercase;letter-spacing:.1em;font-size:10px;font-weight:900;color:var(--blue);margin:0 0 8px}
.ta-card h3{font-size:18px;margin:0 0 8px;color:var(--ink)}
.ta-card p{font-size:13.5px;color:var(--muted);margin:0 0 14px;line-height:1.55}
.ta-card .ta-card-meta{margin-top:auto;font-size:11.5px;color:#98a0aa;font-weight:700}
.ta-card .ta-card-link{position:absolute;inset:0}

/* ---------------------------------------------------------------- blog index hero */
.ta-hero{position:relative;overflow:hidden;background:radial-gradient(circle at 74% 30%,#123c63 0%,#0a2340 40%,#061426 100%);
  color:#fff;padding:clamp(56px,9vw,104px) 0}
.ta-hero:before{content:"";position:absolute;inset:0;opacity:.16;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:60px 60px;mask-image:linear-gradient(to bottom,transparent,#000 20%,#000 80%,transparent)}
.ta-hero .ta-wrap{position:relative}
.ta-hero .ta-eyebrow{color:var(--cyan);display:inline-flex;align-items:center;gap:9px}
.ta-hero .ta-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 6px rgba(255,174,53,.12)}
.ta-hero h1{font-size:clamp(38px,6vw,72px);margin:0 0 18px;max-width:16ch;letter-spacing:-.05em}
.ta-hero h1 span{color:var(--cyan)}
.ta-hero p{font-size:clamp(16px,1.7vw,20px);color:#b8c5d4;max-width:56ch;margin:0}

/* category filter chips */
.ta-cats{max-width:var(--maxw);margin:0 auto;padding:28px clamp(18px,4vw,48px) 0;display:flex;flex-wrap:wrap;gap:9px}
.ta-cats a{padding:9px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12.5px;font-weight:800;color:#2a3644}
.ta-cats a:hover{border-color:var(--blue);color:var(--blue);text-decoration:none}

.ta-section-group{max-width:var(--maxw);margin:0 auto;padding:44px clamp(18px,4vw,48px) 0}
.ta-section-group h2{font-size:clamp(22px,2.6vw,30px);margin:0 0 6px;display:flex;align-items:center;gap:12px}
.ta-section-group h2 .em{font-size:24px}
.ta-section-group>p{color:var(--muted);margin:0 0 22px;max-width:60ch}

/* ---------------------------------------------------------------- footer */
.ta-footer{background:#030d19;color:#8095a8;padding:56px clamp(18px,4vw,48px) 30px;font-size:13px}
.ta-footer-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.ta-footer-brand{max-width:280px}
.ta-footer-brand .b{display:flex;align-items:center;gap:10px;color:#fff;font-size:15px;font-weight:850;margin-bottom:12px}
.ta-footer-brand .b img{width:32px;height:32px;border-radius:9px}
.ta-footer-brand p{margin:0;color:#67788a;line-height:1.6}
.ta-footer-col h4{color:#cbd7e2;font-size:12px;text-transform:uppercase;letter-spacing:.1em;margin:0 0 14px}
.ta-footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.ta-footer-col a{color:#8095a8}
.ta-footer-col a:hover{color:#fff;text-decoration:none}
.ta-footer-legal{max-width:var(--maxw);margin:38px auto 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;color:#5f7183;font-size:12px}
@media(max-width:760px){.ta-footer-inner{grid-template-columns:1fr 1fr}.ta-footer-brand{grid-column:1/-1}}
@media(max-width:460px){.ta-footer-inner{grid-template-columns:1fr}}

/* trademark / fine print */
.ta-fineprint{font-size:12px;color:var(--muted);margin:22px 0 0;line-height:1.6}

/* reveal on scroll (subtle, respects reduced-motion) */
.ta-reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.ta-reveal.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important}
  .ta-reveal{opacity:1;transform:none}
}