/* ==========================================================================
   TechTide IT — site.css
   Refreshed from the original WYSIWYG build. Brand-faithful, hand-written,
   ADA/WCAG-minded. Navy #0A2643 stays dominant; ocean-teal accent leans into
   the "riding the wave" theme. Orbitron (display) + Roboto (body) preserved.
   ========================================================================== */

/* ---- Design tokens ------------------------------------------------------- */
:root{
  --navy-900:#0A2643;
  --navy-850:#0c2d50;
  --navy-800:#0e335c;
  --navy-700:#143f6e;
  --ink:#15263b;
  --ink-soft:#3c4f64;

  /* accent — switchable via [data-accent] on <html> */
  --accent:#1AA6BC;
  --accent-bright:#23c4dc;
  --accent-deep:#126f7e;
  --on-accent:#06202c;

  --paper:#f4f8fb;
  --paper-2:#eaf1f7;
  --card:#ffffff;
  --line:#dde6ee;
  --line-dark:rgba(255,255,255,.14);

  --white:#ffffff;
  --white-80:rgba(255,255,255,.82);
  --white-65:rgba(255,255,255,.66);

  --maxw:1180px;
  --gutter:clamp(20px,5vw,64px);
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 2px 10px rgba(10,38,67,.06);
  --shadow-md:0 18px 50px -22px rgba(10,38,67,.35);
  --shadow-lg:0 30px 70px -28px rgba(10,38,67,.45);

  --display:'Orbitron',-apple-system,BlinkMacSystemFont,sans-serif;
  --body:'Roboto',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* accent variants */
html[data-accent="blue"]{--accent:#2E7BE6;--accent-bright:#4f97ff;--accent-deep:#1c57ad;--on-accent:#fff;}
html[data-accent="gold"]{--accent:#E0A53C;--accent-bright:#f4bf5c;--accent-deep:#b07f24;--on-accent:#2a1c00;}
html[data-accent="mono"]{--accent:#7d96b3;--accent-bright:#9fb4cd;--accent-deep:#56708f;--on-accent:#06202c;}

/* ---- Reset / base -------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{
  margin:0;font-family:var(--body);color:var(--ink);background:var(--paper);
  font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--accent-deep);text-underline-offset:3px;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{line-height:1.18;margin:0 0 .5em;color:var(--ink);font-weight:700;text-wrap:balance;}
p{margin:0 0 1rem;text-wrap:pretty;}
ul{margin:0;padding:0;}
:focus-visible{outline:3px solid var(--accent-bright);outline-offset:3px;border-radius:4px;}

/* skip link */
.skip-link{
  position:absolute;left:50%;top:-60px;transform:translateX(-50%);
  background:var(--navy-900);color:#fff;padding:12px 22px;border-radius:0 0 12px 12px;
  z-index:1000;font-weight:600;transition:top .2s var(--ease);text-decoration:none;
}
.skip-link:focus{top:0;color:#fff;}

/* ---- Layout helpers ------------------------------------------------------ */
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter);}
.section{padding-block:clamp(64px,9vw,120px);position:relative;}
.section--navy{background:var(--navy-900);color:var(--white-80);}
.section--navy h1,.section--navy h2,.section--navy h3{color:#fff;}
.eyebrow{
  font-family:var(--body);font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  font-size:.78rem;color:var(--accent-deep);margin:0 0 14px;display:flex;align-items:center;gap:12px;
}
.section--navy .eyebrow{color:var(--accent-bright);}
.eyebrow::before{content:"";width:34px;height:2px;background:currentColor;display:inline-block;border-radius:2px;}
.title{font-size:clamp(1.9rem,4.4vw,2.85rem);letter-spacing:-.01em;}
.lede{font-size:clamp(1.05rem,1.8vw,1.22rem);color:var(--ink-soft);max-width:62ch;}
.section--navy .lede{color:var(--white-80);}

/* ---- Buttons ------------------------------------------------------------- */
.btn{
  --bg:var(--accent);--fg:var(--on-accent);
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--body);font-weight:700;font-size:1rem;letter-spacing:.01em;
  min-height:52px;padding:0 28px;border-radius:999px;border:2px solid transparent;
  background:var(--bg);color:var(--fg);text-decoration:none;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
  box-shadow:0 12px 26px -12px color-mix(in oklab,var(--accent),black 10%);white-space:nowrap;
}
.btn:hover{background:var(--accent-bright);color:var(--on-accent);transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);box-shadow:none;}
.btn--ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff;}
.btn--outline{background:transparent;color:var(--accent-deep);border-color:var(--accent);box-shadow:none;}
.btn--outline:hover{background:var(--accent);color:var(--on-accent);}
.btn svg{width:18px;height:18px;flex:none;}

/* ---- Header / nav -------------------------------------------------------- */
.site-header{
  position:sticky;top:0;z-index:200;background:rgba(10,38,67,.92);
  backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.1);
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -12px rgba(0,0,0,.5);background:rgba(8,32,58,.97);}
.nav{display:flex;align-items:center;gap:14px;min-height:78px;}
.brand{display:flex;align-items:center;text-decoration:none;margin-right:auto;}
.brand img{height:50px;width:auto;display:block;}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;}
.nav-links a{
  text-decoration:none;color:#fff;font-weight:600;font-size:.93rem;letter-spacing:.02em;
  padding:10px 14px;border-radius:10px;transition:background .15s,color .15s;white-space:nowrap;
}
.nav-links a:hover,.nav-links a[aria-current="page"]{background:rgba(255,255,255,.12);color:#fff;}
.nav-cta{margin-left:6px;}
.nav-cta .btn{background:var(--accent-deep);color:#fff;box-shadow:none;}
.nav-cta .btn:hover{background:#0f7283;color:#fff;}
.nav-phone{display:inline-flex;align-items:center;gap:9px;color:#fff;text-decoration:none;font-weight:700;
  font-size:.92rem;white-space:nowrap;padding:10px 15px;border-radius:999px;border:1.5px solid rgba(255,255,255,.28);transition:.15s;}
.nav-phone:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.55);}
.nav-phone svg{width:17px;height:17px;color:var(--accent-bright);flex:none;}
.nav-toggle{
  display:none;width:48px;height:48px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.06);border-radius:12px;
  cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{width:22px;height:2px;background:#fff;border-radius:2px;transition:.25s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:860px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:2px;
    background:var(--navy-850);border-bottom:1px solid rgba(255,255,255,.12);padding:14px var(--gutter) 22px;
    box-shadow:0 24px 40px -18px rgba(0,0,0,.6);transform:translateY(-8px);opacity:0;visibility:hidden;
    transition:.22s var(--ease);
  }
  .nav-links.is-open{transform:none;opacity:1;visibility:visible;}
  .nav-links a{padding:14px 12px;font-size:1.02rem;}
  .nav-phone{width:100%;justify-content:center;margin-top:8px;}
  .nav-cta{margin:8px 0 0;}
  .nav-cta .btn{width:100%;}
}

/* ---- Hero ---------------------------------------------------------------- */
.hero{position:relative;color:#fff;overflow:hidden;isolation:isolate;background:var(--navy-900);display:flex;align-items:center;min-height:clamp(580px,82vh,840px);}
.hero__bg{
  position:absolute;inset:0;z-index:-2;
  background:linear-gradient(120deg,rgba(7,26,46,.78),rgba(10,38,67,.5)),url('../images/bk_wavefile.webp');
  background-size:cover;background-position:center;
}
.hero__overlay{position:absolute;inset:0;z-index:-1;
  background:radial-gradient(120% 80% at 80% 10%,transparent,rgba(6,24,42,.55));}
.hero .wrap{position:relative;padding-block:clamp(90px,12vh,150px);text-align:center;width:100%;}
.hero__inner{max-width:840px;margin-inline:auto;}
.hero h1{
  font-family:var(--display);font-weight:800;color:#fff;
  font-size:clamp(2.6rem,7vw,4.6rem);letter-spacing:.02em;margin:0 0 .15em;line-height:1.02;
}
.hero h1 .tide{color:var(--accent-bright);}
.hero__tag{
  font-family:var(--display);font-weight:500;letter-spacing:.28em;text-transform:uppercase;
  font-size:clamp(.78rem,1.8vw,1.05rem);color:var(--white-80);margin:0 0 28px;
}
.hero__sub{font-size:clamp(1.05rem,2vw,1.3rem);color:var(--white-80);max-width:54ch;margin:0 0 34px;}
.hero__chips{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 36px;list-style:none;}
.hero__chips li{
  display:inline-flex;align-items:center;gap:8px;font-size:.86rem;font-weight:600;letter-spacing:.04em;
  color:#fff;padding:8px 16px;border:1px solid rgba(255,255,255,.22);border-radius:999px;
  background:rgba(255,255,255,.05);
}
.hero__chips li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent-bright);}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;}

/* animated wave at hero base */
.wave-divider{position:absolute;left:0;right:0;bottom:-1px;line-height:0;z-index:0;pointer-events:none;}
.wave-divider svg{width:100%;height:clamp(60px,8vw,120px);display:block;}
.hero .wave-divider svg path{fill:var(--paper);}

/* ---- Intro / value ------------------------------------------------------- */
.intro{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,6vw,80px);align-items:center;}
@media (max-width:840px){.intro{grid-template-columns:1fr;}}
.pill-list{list-style:none;display:grid;gap:14px;margin-top:26px;}
.pill-list li{display:flex;gap:14px;align-items:flex-start;font-size:1.02rem;}
.pill-list .tick{
  flex:none;width:30px;height:30px;border-radius:9px;background:color-mix(in oklab,var(--accent),white 78%);
  color:var(--accent-deep);display:grid;place-items:center;margin-top:2px;
}
.pill-list .tick svg{width:17px;height:17px;}
.stat-card{
  background:var(--navy-900);color:#fff;border-radius:var(--radius-lg);padding:clamp(28px,4vw,42px);
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.stat-card::after{content:"";position:absolute;right:-40px;bottom:-40px;width:200px;height:200px;
  background:radial-gradient(circle,color-mix(in oklab,var(--accent),transparent 55%),transparent 70%);}
.stat-card .eyebrow{color:var(--accent-bright);}
.stat-row{display:flex;gap:8px;align-items:baseline;}
.stat-row b{font-family:var(--body);font-weight:800;font-size:clamp(2.4rem,6vw,3.4rem);color:#fff;line-height:1;letter-spacing:.005em;}
.stat-card p{color:var(--white-80);margin:.4rem 0 0;}
.stat-card hr{border:none;border-top:1px solid var(--line-dark);margin:24px 0;}

/* ---- About / founder ----------------------------------------------------- */
.about{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,6vw,72px);align-items:center;}
@media (max-width:840px){.about{grid-template-columns:1fr;}}
.about__photo{position:relative;}
.about__photo img{border-radius:var(--radius-lg);box-shadow:var(--shadow-md);width:100%;
  aspect-ratio:4/5;object-fit:cover;object-position:top center;}
.about__photo .badge{
  position:absolute;left:-14px;bottom:22px;background:#fff;border-radius:14px;padding:14px 18px;
  box-shadow:var(--shadow-md);display:flex;gap:12px;align-items:center;max-width:240px;
}
.about__photo .badge b{font-family:var(--display);color:var(--accent-deep);font-size:1.5rem;line-height:1;}
.about__photo .badge span{font-size:.82rem;color:var(--ink-soft);line-height:1.25;}
.about blockquote{margin:0 0 18px;font-size:1.05rem;color:var(--ink-soft);}
.sig{font-family:var(--display);font-weight:700;color:var(--navy-900);margin-top:8px;}

/* ---- Accordion (services + faq) ------------------------------------------ */
.acc{display:grid;gap:14px;}
.acc__item{
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;
  transition:border-color .2s,box-shadow .2s;
}
.acc__item.is-open{border-color:color-mix(in oklab,var(--accent),white 55%);box-shadow:var(--shadow-sm);}
.section--navy .acc__item{background:rgba(255,255,255,.04);border-color:var(--line-dark);}
.section--navy .acc__item.is-open{background:rgba(255,255,255,.07);border-color:var(--accent);}
.acc__btn{
  width:100%;display:flex;align-items:center;gap:18px;text-align:left;cursor:pointer;
  background:none;border:none;padding:22px clamp(18px,3vw,28px);font-family:var(--body);
  font-size:clamp(1.02rem,2vw,1.18rem);font-weight:700;color:var(--ink);line-height:1.3;
}
.section--navy .acc__btn{color:#fff;}
.acc__btn .idx{
  flex:none;font-family:var(--display);font-size:.82rem;font-weight:700;color:var(--accent-deep);
  width:34px;
}
.section--navy .acc__btn .idx{color:var(--accent-bright);}
.acc__btn .label{flex:1;}
.acc__btn .chev{flex:none;width:26px;height:26px;transition:transform .3s var(--ease);color:var(--accent-deep);}
.section--navy .acc__btn .chev{color:var(--accent-bright);}
.acc__item.is-open .chev{transform:rotate(180deg);}
.acc__panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s var(--ease);}
.acc__item.is-open .acc__panel{grid-template-rows:1fr;}
.acc__panel-inner{overflow:hidden;}
.acc__body{padding:0 clamp(18px,3vw,28px) 24px;}
.acc__body p{color:var(--ink-soft);margin:0;}
.section--navy .acc__body p{color:var(--white-80);}

/* services list inside accordion */
.svc-grid{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:6px 38px;margin:0;}
@media (max-width:680px){.svc-grid{grid-template-columns:1fr;}}
.svc-grid li{padding:11px 0;border-bottom:1px solid var(--line-dark);display:flex;gap:12px;align-items:flex-start;}
.svc-grid li:last-child,.svc-grid li:nth-last-child(2):nth-child(odd){border-bottom:none;}
.svc-grid .dot{flex:none;width:8px;height:8px;border-radius:50%;background:var(--accent-bright);margin-top:9px;}
.svc-grid b{display:block;color:#fff;font-size:.98rem;font-weight:600;}
.svc-grid span{display:block;color:var(--white-65);font-size:.86rem;line-height:1.45;}

.svc-head{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;margin-top:18px;}
.svc-head .tag{font-size:.82rem;font-weight:600;color:var(--white-65);
  border:1px solid var(--line-dark);border-radius:999px;padding:6px 14px;}

/* ---- FAQ groups ---------------------------------------------------------- */
.faq-switch{display:inline-flex;background:rgba(255,255,255,.06);border:1px solid var(--line-dark);
  border-radius:999px;padding:5px;gap:4px;margin-bottom:30px;flex-wrap:wrap;}
.faq-switch button{
  background:none;border:none;color:var(--white-80);font-family:var(--body);font-weight:600;
  font-size:.92rem;padding:10px 20px;border-radius:999px;cursor:pointer;transition:.2s var(--ease);
}
.faq-switch button[aria-selected="true"]{background:var(--accent);color:var(--on-accent);}
.faq-switch--light{background:var(--paper);border-color:var(--line);}
.faq-switch--light button{color:var(--ink-soft);}
.faq-switch--light button[aria-selected="true"]{background:var(--accent);color:var(--on-accent);}
.faq-group[hidden]{display:none;}

/* ---- Contact / footer ---------------------------------------------------- */
.contact{background:var(--navy-900);color:#fff;}
.contact .eyebrow{color:var(--accent-bright);}
.contact h1,.contact h2,.contact h3{color:#fff;}
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,64px);align-items:start;}
@media (max-width:900px){.contact__grid{grid-template-columns:1fr;}}
.contact__info .lede{color:var(--white-80);}
.contact__cards{display:grid;gap:14px;margin-top:28px;list-style:none;}
.contact__cards li{display:flex;gap:16px;align-items:center;background:rgba(255,255,255,.04);
  border:1px solid var(--line-dark);border-radius:14px;padding:16px 18px;}
.contact__cards .ic{flex:none;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:color-mix(in oklab,var(--accent),transparent 70%);color:var(--accent-bright);}
.contact__cards .ic svg{width:22px;height:22px;}
.contact__cards a{color:#fff;text-decoration:none;font-weight:600;}
.contact__cards a:hover{color:var(--accent-bright);}
.contact__cards small{display:block;color:var(--white-65);font-weight:400;font-size:.82rem;}
.form-shell{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);position:relative;overflow:hidden;}
.form-shell > iframe[name="tt-emf-sink"]{position:absolute;width:1px;height:1px;min-height:0;border:0;opacity:0;pointer-events:none;}

/* styled native contact form (posts to EmailMeForm) */
.tt-form{padding:clamp(22px,3.4vw,36px);display:grid;gap:18px;}
.tt-form__head{margin-bottom:2px;}
.tt-form__head h3{font-family:var(--display);font-weight:700;font-size:clamp(1.05rem,2vw,1.22rem);
  color:var(--navy-900);margin:0 0 5px;letter-spacing:.01em;}
.tt-form__head p{color:var(--ink-soft);font-size:.92rem;margin:0;}
.tt-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
@media (max-width:520px){.tt-row{grid-template-columns:1fr;}}
.tt-field{display:grid;gap:7px;}
.tt-field label{font-weight:700;font-size:.86rem;color:var(--navy-900);letter-spacing:.01em;}
.tt-field .req{color:var(--accent-deep);}
.tt-field input,.tt-field textarea{
  font-family:var(--body);font-size:1rem;color:var(--ink);background:var(--paper);
  border:1.5px solid var(--line);border-radius:12px;padding:13px 15px;width:100%;
  transition:border-color .15s var(--ease),box-shadow .15s var(--ease),background .15s var(--ease);
}
.tt-field textarea{resize:vertical;min-height:124px;line-height:1.55;}
.tt-field input::placeholder,.tt-field textarea::placeholder{color:#90a2b4;}
.tt-field input:focus,.tt-field textarea:focus{
  outline:none;background:#fff;border-color:var(--accent);
  box-shadow:0 0 0 4px color-mix(in oklab,var(--accent),white 78%);
}
.tt-field input:user-invalid,.tt-field textarea:user-invalid{
  border-color:#d4574e;box-shadow:0 0 0 4px color-mix(in oklab,#d4574e,white 84%);
}
.tt-form__submit{width:100%;margin-top:4px;}
.tt-form__fine{font-size:.84rem;color:var(--ink-soft);text-align:center;margin:0;}
.tt-form__fine a{color:var(--accent-deep);font-weight:600;}
.tt-form__success{padding:clamp(34px,6vw,56px) clamp(22px,4vw,40px);text-align:center;
  display:grid;gap:12px;place-items:center;}
.tt-form__success[hidden]{display:none;}
.tt-form__check{width:62px;height:62px;border-radius:50%;display:grid;place-items:center;
  background:color-mix(in oklab,var(--accent),white 80%);color:var(--accent-deep);}
.tt-form__check svg{width:30px;height:30px;}
.tt-form__success h3{font-family:var(--display);color:var(--navy-900);font-size:1.25rem;margin:0;}
.tt-form__success p{color:var(--ink-soft);margin:0;max-width:40ch;}
.tt-form__success a{color:var(--accent-deep);font-weight:600;}

.site-footer{background:#06192c;color:var(--white-65);padding-block:40px;font-size:.9rem;}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:18px 40px;justify-content:space-between;align-items:center;}
.site-footer a{color:var(--white-80);text-decoration:none;}
.site-footer a:hover{color:var(--accent-bright);text-decoration:underline;}
.site-footer nav{display:flex;flex-wrap:wrap;gap:8px 22px;}
.site-footer .legal{display:flex;flex-direction:column;gap:4px;}
.footer-right{display:flex;flex-direction:column;align-items:flex-end;gap:16px;}
@media (max-width:680px){.footer-right{align-items:flex-start;}}
.social{display:flex;gap:10px;list-style:none;margin:0;padding:0;}
.social a{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line-dark);color:var(--white-80);
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);}
.social a:hover{background:var(--accent);color:var(--on-accent);border-color:transparent;transform:translateY(-2px);}
.social svg{width:19px;height:19px;display:block;}

/* ---- Reveal on scroll ---------------------------------------------------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.reveal[data-rv="left"]{transform:translateX(-34px);}
.reveal[data-rv="right"]{transform:translateX(34px);}
.reveal.in[data-rv]{transform:none;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1!important;transform:none!important;transition:none;}}

/* ---- Back to top --------------------------------------------------------- */
.to-top{
  position:fixed;right:20px;bottom:20px;width:50px;height:50px;border-radius:14px;border:none;
  background:var(--navy-900);color:#fff;display:grid;place-items:center;cursor:pointer;z-index:150;
  opacity:0;visibility:hidden;transform:translateY(12px);transition:.25s var(--ease);box-shadow:var(--shadow-md);
}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--accent);color:var(--on-accent);}
.to-top svg{width:22px;height:22px;}

/* ---- Theme switcher (preview directions) --------------------------------- */
.theme-fab{position:fixed;left:18px;bottom:18px;z-index:300;font-family:var(--body);}
.theme-fab__btn{
  display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:10px 16px;font-weight:600;font-size:.85rem;color:var(--navy-900);
  cursor:pointer;box-shadow:var(--shadow-md);
}
.theme-fab__btn svg{width:18px;height:18px;color:var(--accent-deep);}
.theme-panel{
  position:absolute;left:0;bottom:54px;width:248px;background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow-lg);padding:16px;display:none;
}
.theme-fab.open .theme-panel{display:block;}
.theme-panel h4{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);
  margin:0 0 10px;font-weight:700;}
.theme-panel h4:not(:first-child){margin-top:18px;}
.swatches{display:flex;gap:8px;}
.swatch{width:40px;height:40px;border-radius:10px;border:2px solid transparent;cursor:pointer;position:relative;}
.swatch[aria-pressed="true"]{border-color:var(--navy-900);}
.seg{display:flex;background:var(--paper-2);border-radius:10px;padding:4px;gap:4px;}
.seg button{flex:1;border:none;background:none;padding:8px;border-radius:7px;font-weight:600;font-size:.82rem;
  cursor:pointer;color:var(--ink-soft);}
.seg button[aria-pressed="true"]{background:#fff;color:var(--navy-900);box-shadow:var(--shadow-sm);}
.theme-note{font-size:.72rem;color:var(--ink-soft);margin:14px 0 0;line-height:1.4;}

/* ==========================================================================
   BLOG
   ========================================================================== */
/* page header (sub-hero used on blog + interior pages) */
.page-head{position:relative;color:#fff;overflow:hidden;
  background:#0A2643 linear-gradient(120deg,#081f37,#0A2643 55%,#0c3258);}
.page-head .wrap{padding-block:clamp(70px,11vw,120px) clamp(80px,12vw,130px);position:relative;z-index:1;}
.page-head .eyebrow{color:var(--accent-bright);}
.page-head h1{font-family:var(--display);font-weight:800;color:#fff;letter-spacing:.01em;
  font-size:clamp(2.1rem,5.4vw,3.4rem);margin:0 0 .35em;}
.page-head p{color:var(--white-80);font-size:clamp(1.05rem,1.9vw,1.25rem);max-width:60ch;}
.page-head .wave-divider svg path{fill:var(--paper);}
.crumbs{display:flex;gap:8px;align-items:center;font-size:.85rem;color:var(--white-65);margin-bottom:22px;list-style:none;flex-wrap:wrap;}
.crumbs a{color:var(--white-80);text-decoration:none;}
.crumbs a:hover{color:var(--accent-bright);}
.crumbs li::after{content:"/";margin-left:8px;color:var(--white-65);}
.crumbs li:last-child::after{content:"";}

/* featured post */
.featured{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,56px);align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-md);}
@media (max-width:820px){.featured{grid-template-columns:1fr;}}
.featured__media{position:relative;aspect-ratio:16/10;background:var(--navy-900);}
.featured__media img{width:100%;height:100%;object-fit:cover;}
.featured__media .tag{position:absolute;top:16px;left:16px;background:var(--accent);color:var(--on-accent);
  font-weight:700;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;padding:7px 14px;border-radius:999px;}
.featured__body{padding:clamp(24px,4vw,44px);}
.post-meta{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;color:var(--ink-soft);
  font-size:.86rem;margin-bottom:14px;}
.post-meta .by{font-weight:600;color:var(--navy-900);}
.post-meta .dot-sep::before{content:"·";margin-right:18px;color:var(--line);}
.featured__body h2{font-size:clamp(1.5rem,3.2vw,2.1rem);}
.featured__body h2 a{color:var(--navy-900);text-decoration:none;}
.featured__body h2 a:hover{color:var(--accent-deep);}
.featured__body p{color:var(--ink-soft);}

.post-list{display:grid;gap:18px;margin-top:32px;}
.post-card{display:grid;grid-template-columns:200px 1fr;gap:24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:box-shadow .2s,transform .2s;align-items:center;}
.post-card:hover{box-shadow:var(--shadow-md);}
@media (max-width:620px){.post-card{grid-template-columns:1fr;}}
.post-card__media{aspect-ratio:3/2;background:var(--navy-900);}
.post-card__media img{width:100%;height:100%;object-fit:cover;}
.post-card__body{padding:18px 22px 18px 0;}
@media (max-width:620px){.post-card__body{padding:0 22px 22px;}}
.post-card__body h3{font-size:1.18rem;margin:0 0 6px;}
.post-card__body h3 a{color:var(--navy-900);text-decoration:none;}
.post-card__body h3 a:hover{color:var(--accent-deep);}

.soon{margin-top:34px;border:1px dashed var(--line);border-radius:var(--radius);padding:26px;text-align:center;
  color:var(--ink-soft);background:#fff;}
.soon b{color:var(--navy-900);}

/* read progress */
.read-progress{position:fixed;top:0;left:0;right:0;height:4px;z-index:250;background:transparent;}
.read-progress span{display:block;height:100%;background:var(--accent);transform:scaleX(0);transform-origin:0 50%;
  transition:transform .08s linear;}

/* article layout */
.article-wrap{display:grid;grid-template-columns:240px minmax(0,1fr);gap:clamp(28px,5vw,64px);
  max-width:1120px;margin-inline:auto;padding-inline:var(--gutter);padding-block:clamp(48px,7vw,84px);}
@media (max-width:900px){.article-wrap{grid-template-columns:1fr;}}
.toc{position:sticky;top:94px;align-self:start;font-size:.9rem;}
@media (max-width:900px){.toc{position:static;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;padding:18px 20px;}}
.toc h2{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin:0 0 14px;}
.toc ol{list-style:none;display:grid;gap:2px;counter-reset:toc;}
.toc a{display:block;padding:7px 12px;border-radius:8px;text-decoration:none;color:var(--ink-soft);
  border-left:2px solid var(--line);line-height:1.35;transition:.15s;}
.toc a:hover{background:var(--paper-2);color:var(--navy-900);}
.toc a[aria-current="true"]{color:var(--accent-deep);border-left-color:var(--accent);background:color-mix(in oklab,var(--accent),white 90%);font-weight:600;}

.article{max-width:none;}
.article > *{max-width:68ch;}
.article .lead{font-size:clamp(1.15rem,2.2vw,1.4rem);line-height:1.55;color:var(--navy-900);font-weight:500;
  margin-bottom:30px;}
.article h2{font-size:clamp(1.5rem,3.2vw,2rem);margin-top:2.4em;scroll-margin-top:90px;
  padding-top:1.2em;border-top:1px solid var(--line);}
.article h2:first-of-type{border-top:none;padding-top:0;margin-top:1em;}
.article h2 .ch{display:block;font-family:var(--display);font-size:.7rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--accent-deep);margin-bottom:8px;font-weight:700;}
.article h3{font-size:1.2rem;margin-top:1.8em;color:var(--navy-900);}
.article p{font-size:1.08rem;line-height:1.78;color:#2c3e52;}
.article ul.bul{list-style:none;display:grid;gap:10px;margin:0 0 1.3rem;padding:0;}
.article ul.bul li{position:relative;padding-left:24px;color:#2c3e52;line-height:1.65;}
.article ul.bul .dot{position:absolute;left:2px;top:10px;width:8px;height:8px;border-radius:50%;background:var(--accent);}
.callout{background:var(--paper-2);border-left:4px solid var(--accent);border-radius:0 14px 14px 0;
  padding:22px 26px;margin:1.8em 0;max-width:68ch;}
.callout p{margin:0;color:var(--navy-900);font-weight:500;}
.scenario{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;
  margin:1.4em 0;max-width:68ch;box-shadow:var(--shadow-sm);}
.scenario h3{margin-top:0;display:flex;gap:12px;align-items:center;}
.scenario h3 .num{flex:none;width:30px;height:30px;border-radius:8px;background:var(--navy-900);color:#fff;
  font-family:var(--display);font-size:.85rem;display:grid;place-items:center;}
.post-cta{margin-top:3em;background:var(--navy-900);color:#fff;border-radius:var(--radius-lg);
  padding:clamp(28px,4vw,48px);max-width:none;text-align:center;overflow:hidden;position:relative;}
.post-cta h2{border:none;padding:0;margin:0 0 .4em;color:#fff;}
.post-cta p{color:var(--white-80);max-width:54ch;margin-inline:auto;}
.post-cta .hero__actions{justify-content:center;margin-top:24px;}
.article-foot{border-top:1px solid var(--line);margin-top:40px;padding-top:24px;max-width:68ch;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;color:var(--ink-soft);font-size:.92rem;}
.article figure{margin:2.2em 0;max-width:none;}
.article figure img{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);display:block;}
.article figure.portrait{max-width:470px;margin-inline:auto;}
.article figcaption{font-size:.85rem;color:var(--ink-soft);margin-top:10px;text-align:center;font-style:italic;}
.article ol.steps{margin:0 0 1.3rem;padding-left:0;list-style:none;counter-reset:step;display:grid;gap:12px;}
.article ol.steps li{position:relative;padding-left:42px;color:#2c3e52;line-height:1.65;counter-increment:step;min-height:28px;}
.article ol.steps li strong{display:block;color:var(--navy-900);margin-bottom:2px;}
.article ol.steps li::before{content:counter(step);position:absolute;left:0;top:1px;width:28px;height:28px;border-radius:8px;
  background:var(--navy-900);color:#fff;font-weight:700;font-size:.85rem;display:grid;place-items:center;font-family:var(--body);}

/* generic prose for accessibility page */
.prose{max-width:72ch;margin-inline:auto;padding-inline:var(--gutter);padding-block:clamp(48px,7vw,80px);}
.prose h2{font-size:1.45rem;margin-top:2em;color:var(--navy-900);}
.prose h3{font-size:1.1rem;margin-top:1.5em;color:var(--navy-900);}
.prose p,.prose li{color:#2c3e52;line-height:1.75;}
.prose ul{padding-left:22px;margin:0 0 1.2rem;}
.prose ul li{margin-bottom:8px;}
.prose a{color:var(--accent-deep);}

/* utility */
.center{text-align:center;}
.mt-0{margin-top:0;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
