/* SopranoAI content pages (/models, /compare, guides, alternatives). Same Klein-Swiss tokens
   and chrome as the landing page (index.html keeps its own inline copy). */
:root{
  --klein:#002FA7; --klein-hi:#1f47c9;
  --paper:#F6F7F9; --ink:#0E0F12; --white:#FFFFFF; --persimmon:#FF5A36;
  --steel:#5b6472; --steel-on-klein:rgba(255,255,255,.62);
  --maxw:1320px; --pad:clamp(18px,4vw,56px);
  --mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',Menlo,monospace;
  --sans:'Archivo','Helvetica Neue','Arial Narrow',Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
::selection{background:var(--klein);color:var(--white)}
.disp{font-family:var(--sans);font-stretch:125%;font-weight:900;line-height:.9;letter-spacing:-.02em;text-transform:uppercase}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.kick{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel);margin-bottom:12px}

.btn{display:inline-flex;align-items:center;gap:.6ch;font-family:var(--sans);font-weight:800;font-stretch:110%;
  text-transform:uppercase;letter-spacing:.01em;font-size:15px;line-height:1;padding:15px 22px;border:1.5px solid var(--ink);
  background:var(--ink);color:var(--paper);cursor:pointer;border-radius:0;white-space:nowrap}
.btn:active{transform:translate(1px,1px)}
.btn:focus-visible,a:focus-visible{outline:3px solid var(--persimmon);outline-offset:2px}
.btn--klein{background:var(--klein);border-color:var(--klein);color:var(--white)}
.btn--white{background:var(--white);border-color:var(--white);color:var(--klein)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--paper)}
.btn--sm{font-size:12.5px;padding:10px 14px}

/* header (as on the landing page) */
header{position:sticky;top:0;z-index:60;background:var(--paper)}
.hbar{display:flex;align-items:center;gap:20px;height:60px}
.brand{font-family:var(--sans);font-stretch:125%;font-weight:900;font-size:22px;letter-spacing:-.01em;text-transform:uppercase}
.brand .sl{color:var(--klein);margin:0 -.02em}
.nav-links{display:flex;gap:22px;margin-left:8px}
.nav-links a{font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;text-transform:uppercase;color:var(--steel)}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--ink)}
.hright{margin-left:auto;display:flex;align-items:center;gap:12px}
.htick{display:flex;justify-content:space-between;gap:12px;font-family:var(--mono);font-size:10px;color:var(--steel);letter-spacing:.1em;padding:5px 0;border-top:1px solid var(--ink)}
@media(max-width:820px){.nav-links{display:none}}
@media(max-width:760px){.htick .mid{display:none}}
@media(max-width:420px){.hright .btn--ghost{display:none}}

/* page head */
.crumbs{font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--steel);padding-top:22px}
.crumbs a:hover{color:var(--ink)}
.phead{padding:clamp(28px,5vw,64px) 0 clamp(26px,4vw,44px);border-bottom:1.5px solid var(--ink)}
.phead h1{font-size:clamp(2.3rem,8vw,6.2rem);max-width:15ch}
.phead .lede{margin-top:22px;max-width:58ch;font-size:clamp(17px,1.9vw,21px);line-height:1.45}
.phead .meta{margin-top:18px;font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--steel)}

/* long-form prose: ~68ch measure, 18px / 1.65 */
.prose{max-width:68ch;padding:clamp(30px,5vw,56px) 0;font-size:18px;line-height:1.65;color:#1b1e25}
.prose > * + *{margin-top:1.05em}
.prose h2{font-family:var(--sans);font-stretch:118%;font-weight:900;text-transform:uppercase;letter-spacing:-.005em;
  font-size:clamp(1.5rem,3.4vw,2.3rem);line-height:1;margin-top:1.9em;color:var(--ink)}
.prose h3{font-family:var(--sans);font-stretch:110%;font-weight:800;font-size:1.12em;margin-top:1.5em;color:var(--ink)}
.prose a{color:var(--klein);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1.5px}
.prose strong{font-weight:700;color:var(--ink)}
.prose ul,.prose ol{padding-left:0;list-style:none}
.prose li{position:relative;padding-left:1.6em;margin-top:.45em}
.prose ul li::before{content:"→";position:absolute;left:0;color:var(--klein);font-weight:700}
.prose ol{counter-reset:n}
.prose ol li{counter-increment:n}
.prose ol li::before{content:counter(n,decimal-leading-zero);position:absolute;left:0;font-family:var(--mono);font-size:.78em;top:.2em;color:var(--klein);font-weight:600}
.prose .note{border-left:3px solid var(--persimmon);padding:4px 0 4px 16px;font-size:16px;color:#3a3f4a}
.wide{padding-bottom:clamp(20px,4vw,40px)}

/* comparison table: real <table>; on narrow screens it scrolls inside its box with a sticky first column */
.tbl-wrap{overflow-x:auto;border:1.5px solid var(--ink);background:var(--white);-webkit-overflow-scrolling:touch}
.tbl{border-collapse:separate;border-spacing:0;width:100%;min-width:860px;font-size:15px;line-height:1.4}
.tbl th,.tbl td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid rgba(14,15,18,.14);border-right:1px solid rgba(14,15,18,.08)}
.tbl thead th{font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;background:var(--paper);border-bottom:1.5px solid var(--ink)}
.tbl tbody th{font-family:var(--mono);font-size:12px;letter-spacing:.04em;text-transform:uppercase;font-weight:600;color:var(--steel);width:170px}
.tbl th:first-child{position:sticky;left:0;z-index:1;background:var(--paper)}
.tbl .us{background:#eef2fc}
.tbl thead .us{background:var(--klein);color:var(--white)}
.tbl .yes{color:var(--klein);font-weight:700}
.tbl--2{min-width:560px}
.tbl--2 tbody th{width:140px}
.prose + .tbl-wrap,.tbl-wrap + .prose{margin-top:0}
.tbl-hint{display:none;font-family:var(--mono);font-size:11px;letter-spacing:.05em;text-transform:uppercase;color:var(--steel);margin-top:8px}
@media(max-width:900px){.tbl-hint{display:block}}
.tbl-cap{font-family:var(--mono);font-size:11.5px;color:var(--steel);margin-top:10px;max-width:90ch;line-height:1.5}

/* model catalog */
.mgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));border-top:1.5px solid var(--ink);border-left:1.5px solid var(--ink);margin-top:8px}
.mcard{border-right:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);padding:22px 22px 24px;background:var(--paper);display:flex;flex-direction:column;gap:10px}
.mcard .row{display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--steel)}
.mcard .row b{color:var(--persimmon);font-weight:600}
.mcard h3{font-family:var(--sans);font-stretch:118%;font-weight:900;text-transform:uppercase;font-size:clamp(20px,2.2vw,26px);line-height:1}
.mcard .by{font-family:var(--mono);font-size:12.5px;color:var(--klein)}
.mcard p{font-size:15.5px;line-height:1.5;color:#23262e}
.mgroup{margin-top:clamp(36px,5vw,60px)}
.mgroup > h2{font-family:var(--sans);font-stretch:118%;font-weight:900;text-transform:uppercase;font-size:clamp(1.5rem,3.4vw,2.3rem);line-height:1;margin-bottom:14px}

/* faq */
.faq{padding:clamp(36px,5vw,64px) 0;border-top:1.5px solid var(--ink)}
.faq h2{font-size:clamp(2rem,5.5vw,4rem)}
.qa-list{margin-top:24px;border-top:1.5px solid var(--ink)}
.qa{display:grid;grid-template-columns:5ch 1fr;gap:clamp(14px,3vw,36px);padding:22px 0;border-bottom:1px solid rgba(14,15,18,.16)}
.qa .qn{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--klein)}
.qa h3{font-family:var(--sans);font-stretch:112%;font-weight:800;text-transform:uppercase;font-size:clamp(16px,1.9vw,21px);letter-spacing:.005em}
.qa p{margin-top:10px;font-size:16px;line-height:1.55;max-width:64ch;color:#23262e}

/* related + cta band */
.related{padding:clamp(28px,4vw,48px) 0;border-top:1.5px solid var(--ink)}
.related ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0;border-top:1px solid rgba(14,15,18,.16);margin-top:14px}
.related li a{display:flex;justify-content:space-between;gap:12px;padding:16px 0;border-bottom:1px solid rgba(14,15,18,.16);font-family:var(--sans);font-stretch:110%;font-weight:800;text-transform:uppercase;font-size:15px;margin-right:24px}
.related li a::after{content:"→";color:var(--klein)}
.related li a:hover{color:var(--klein)}
.cta-band{background:var(--ink);color:var(--paper)}
.cta-band .in{display:flex;flex-wrap:wrap;align-items:center;gap:22px 40px;padding:clamp(30px,5vw,56px) 0}
.cta-band .t{font-size:clamp(2rem,6vw,4.4rem);flex:1 1 420px}
.cta-band .t span{color:var(--persimmon)}
.cta-band .s{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:rgba(246,247,249,.62);margin-top:12px}

/* footer (as on the landing page) */
footer{background:var(--klein);color:var(--white);overflow:hidden}
.foot-top{padding-top:clamp(36px,5vw,64px);display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:start}
.foot-cta .l{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--steel-on-klein);margin-bottom:16px}
.foot-links{display:flex;gap:14px 38px;flex-wrap:wrap;font-family:var(--mono);font-size:13px;letter-spacing:.03em}
.foot-links a{color:var(--steel-on-klein);text-transform:uppercase}
.foot-links a:hover{color:#fff}
.foot-word{font-family:var(--sans);font-stretch:125%;font-weight:900;text-transform:uppercase;font-size:clamp(3rem,17vw,12rem);line-height:.78;letter-spacing:-.03em;margin-top:24px;margin-bottom:-.1em;white-space:nowrap}
.foot-word .sl{color:var(--persimmon)}
.foot-legal{border-top:1px solid rgba(255,255,255,.25);padding:18px 0 26px;font-family:var(--mono);font-size:10.5px;line-height:1.6;letter-spacing:.02em;color:var(--steel-on-klein);max-width:900px}
@media(max-width:640px){.foot-top{grid-template-columns:1fr}.qa{grid-template-columns:1fr;gap:6px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}