/* ==========================================================================
   PremiumLensImplants.com — stylesheet
   Calm, modern, healthcare-adjacent. Soft teal/blue on light neutrals.
   ========================================================================== */

/* ---- Design tokens ---------------------------------------------------- */
:root{
  --teal-900:#0b4a52;
  --teal-700:#0f6d78;   /* primary */
  --teal-600:#12808d;
  --teal-100:#dceef0;
  --teal-050:#eef7f8;
  --blue-600:#2f7fa6;   /* secondary / links */
  --sand-500:#c98a3f;   /* warm accent, used sparingly */
  --sand-100:#f6efe4;

  --ink-900:#16242b;    /* headings */
  --ink-700:#33454e;
  --ink-600:#4c5c65;    /* body */
  --ink-400:#78888f;    /* muted */
  --line:#e3ebee;
  --line-soft:#eef2f4;

  --bg:#ffffff;
  --bg-soft:#f4f9fa;
  --bg-tint:#eef6f7;
  --white:#ffffff;

  --radius:14px;
  --radius-sm:10px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(16,42,48,.05), 0 1px 3px rgba(16,42,48,.06);
  --shadow-md:0 6px 24px -8px rgba(16,42,48,.16);
  --maxw:1120px;
  --gap:clamp(1rem,3vw,2rem);

  --font-body:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  --font-display:'Newsreader',Georgia,'Times New Roman',serif;
}

/* ---- 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}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}}
body{
  margin:0;font-family:var(--font-body);color:var(--ink-600);
  background:var(--bg);line-height:1.65;font-size:1.02rem;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-600);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--ink-900);font-family:var(--font-display);
  line-height:1.18;font-weight:600;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.5vw,3rem)}
h2{font-size:clamp(1.5rem,3vw,2.05rem)}
h3{font-size:1.28rem}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.25em}
li{margin:.35em 0}
strong{color:var(--ink-800,#22343c)}
:focus-visible{outline:3px solid var(--blue-600);outline-offset:2px;border-radius:4px}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(1rem,4vw,2rem)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--teal-700);color:#fff;
  padding:.6rem 1rem;border-radius:0 0 8px 0;z-index:200}
.skip-link:focus{left:0}

/* ---- Buttons ---------------------------------------------------------- */
.btn{display:inline-flex;align-items:center;gap:.5rem;font-weight:600;
  font-family:var(--font-body);font-size:1rem;line-height:1;cursor:pointer;
  padding:.85rem 1.4rem;border-radius:999px;border:1.5px solid transparent;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:var(--teal-700);color:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:var(--teal-600);box-shadow:var(--shadow-md)}
.btn--outline{background:#fff;color:var(--teal-700);border-color:var(--teal-700)}
.btn--outline:hover{background:var(--teal-050)}
.btn--ghost{background:transparent;color:var(--teal-700);padding-inline:.4rem}

/* ---- Header ----------------------------------------------------------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;
  gap:1rem;min-height:70px}
.brand{display:inline-flex;align-items:center;gap:.6rem;text-decoration:none}
.brand:hover{text-decoration:none}
.brand__logo{border-radius:9px}
.brand__text{display:inline-flex;align-items:baseline;font-family:var(--font-display);
  font-size:1.2rem;color:var(--ink-900);letter-spacing:-.01em}
.brand__name strong{font-weight:600;color:var(--teal-700)}
.brand__tld{color:var(--ink-400);font-size:.92em}
.primary-nav ul{display:flex;gap:.25rem;list-style:none;margin:0;padding:0}
.primary-nav a{display:inline-block;padding:.55rem .8rem;border-radius:8px;
  color:var(--ink-700);font-weight:500;font-size:.97rem}
.primary-nav a:hover{background:var(--bg-tint);text-decoration:none;color:var(--teal-700)}
.primary-nav a.is-active{color:var(--teal-700);background:var(--teal-050)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;
  padding:.5rem;cursor:pointer}
.nav-toggle__bar{width:24px;height:2px;background:var(--ink-700);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease}

@media (max-width:860px){
  .nav-toggle{display:flex}
  .primary-nav{position:absolute;top:100%;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);
    max-height:0;overflow:hidden;transition:max-height .28s ease}
  .primary-nav.open{max-height:70vh}
  .primary-nav ul{flex-direction:column;padding:.5rem clamp(1rem,4vw,2rem) 1rem}
  .primary-nav a{padding:.75rem .6rem;border-radius:8px}
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* ---- Hero (signature: soft concentric lens rings) --------------------- */
.hero{position:relative;overflow:hidden;
  background:
    radial-gradient(120% 90% at 85% -10%, var(--teal-050) 0%, transparent 55%),
    linear-gradient(180deg,#fbfefe 0%, var(--bg-soft) 100%)}
.hero__rings{position:absolute;inset:0;pointer-events:none;opacity:.55;
  background:
    radial-gradient(circle at 82% 30%, transparent 0 78px, rgba(15,109,120,.10) 78px 80px, transparent 81px 150px, rgba(47,127,166,.09) 150px 152px, transparent 153px 240px, rgba(15,109,120,.06) 240px 242px, transparent 243px);}
.hero__inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;
  gap:clamp(1.5rem,4vw,3.5rem);align-items:center;
  padding-block:clamp(2.5rem,6vw,4.5rem)}
.hero__eyebrow{display:inline-block;font-weight:600;font-size:.82rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--teal-700);background:var(--teal-050);
  padding:.35rem .8rem;border-radius:999px;margin-bottom:1rem}
.hero h1{margin-bottom:.5em}
.hero__lead{font-size:1.15rem;color:var(--ink-700);max-width:38ch}
.hero__actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.6rem}
.hero__art{position:relative;aspect-ratio:4/3;border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-md);background:var(--teal-100)}
.hero__art img{width:100%;height:100%;object-fit:cover}
@media (max-width:820px){.hero__inner{grid-template-columns:1fr}
  .hero__art{order:-1;aspect-ratio:16/9}}

/* ---- Generic page header --------------------------------------------- */
.page-head{background:linear-gradient(180deg,var(--bg-tint),#fbfefe);
  border-bottom:1px solid var(--line);padding-block:clamp(1.8rem,4vw,2.8rem)}
.page-head h1{margin-bottom:.3em}
.page-head .lead{font-size:1.12rem;color:var(--ink-700);max-width:62ch;margin:0}

/* ---- Sections / prose ------------------------------------------------- */
.section{padding-block:clamp(2.2rem,5vw,3.4rem)}
.section--tint{background:var(--bg-soft)}
.section--line{border-top:1px solid var(--line)}
.prose{max-width:70ch}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose ul li::marker{color:var(--teal-600)}
.lede{font-size:1.15rem;color:var(--ink-700)}
.center{text-align:center}
.measure{max-width:62ch;margin-inline:auto}
.eyebrow{display:inline-block;font-weight:600;font-size:.8rem;letter-spacing:.09em;
  text-transform:uppercase;color:var(--teal-700);margin-bottom:.5rem}

/* Content + sidebar layout */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(1.5rem,4vw,3rem);
  align-items:start}
@media (max-width:900px){.layout{grid-template-columns:1fr}}
.sidebar{position:sticky;top:88px;display:grid;gap:1.2rem}
@media (max-width:900px){.sidebar{position:static}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:1.2rem 1.3rem;box-shadow:var(--shadow-sm)}
.side-card h2,.side-card h3{font-size:1.05rem;margin-bottom:.6rem}
.side-card ul{list-style:none;padding:0;margin:0}
.side-card li{margin:.15rem 0}
.side-card a{display:block;padding:.4rem .5rem;border-radius:8px;color:var(--ink-700);
  font-size:.96rem}
.side-card a:hover{background:var(--bg-tint);color:var(--teal-700);text-decoration:none}

/* ---- Cards grid ------------------------------------------------------- */
.cards{display:grid;gap:1.2rem;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--teal-100)}
.card__icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--teal-050);color:var(--teal-700);margin-bottom:.9rem}
.card__icon svg{width:24px;height:24px}
.card h3{margin-bottom:.35rem;font-size:1.18rem}
.card p{color:var(--ink-600);font-size:.97rem;margin-bottom:1rem}
.card__link{margin-top:auto;font-weight:600;color:var(--teal-700)}
.card__link::after{content:" \2192";transition:margin .15s ease}
.card:hover .card__link::after{margin-left:.2rem}

.pill-links{display:flex;flex-wrap:wrap;gap:.6rem;list-style:none;padding:0;margin:0}
.pill-links a{display:inline-block;padding:.5rem 1rem;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink-700);font-size:.95rem;
  font-weight:500}
.pill-links a:hover{border-color:var(--teal-600);color:var(--teal-700);
  text-decoration:none;background:var(--teal-050)}

/* ---- Gentle note ------------------------------------------------------ */
.gentle-note{display:flex;gap:.8rem;align-items:flex-start;margin:2rem 0 0;
  background:var(--sand-100);border:1px solid #eaddc7;border-left:4px solid var(--sand-500);
  border-radius:var(--radius-sm);padding:1rem 1.2rem}
.gentle-note__icon{color:var(--sand-500);font-size:1.2rem;line-height:1.4;flex:none}
.gentle-note p{margin:0;font-size:.95rem;color:var(--ink-700)}

/* ---- Domain inquiry --------------------------------------------------- */
.domain-note{background:linear-gradient(180deg,var(--teal-900),var(--teal-700));color:#eaf6f7}
.domain-note__inner{display:flex;align-items:center;justify-content:space-between;
  gap:1.5rem;flex-wrap:wrap;padding-block:clamp(1.8rem,4vw,2.6rem)}
.domain-note__eyebrow{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;
  color:#9fd6dc;margin:0 0 .3rem}
.domain-note__title{color:#fff;margin:0 0 .4rem;font-size:1.5rem}
.domain-note__text{color:#d5edef;margin:0;max-width:60ch}
.domain-note .btn--outline{background:transparent;color:#fff;border-color:#7fc6ce}
.domain-note .btn--outline:hover{background:rgba(255,255,255,.1)}

/* ---- Breadcrumbs ------------------------------------------------------ */
.crumbs{margin:0 0 1rem}
.crumbs ol{display:flex;flex-wrap:wrap;gap:.4rem;list-style:none;padding:0;margin:0;
  font-size:.88rem;color:var(--ink-400)}
.crumbs li+li::before{content:"/";margin-right:.4rem;color:var(--line)}
.crumbs a{color:var(--ink-600)}

/* ---- Comparison table ------------------------------------------------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm)}
table.compare{border-collapse:collapse;width:100%;min-width:760px;background:#fff;font-size:.95rem}
table.compare th,table.compare td{text-align:left;padding:.9rem 1rem;
  border-bottom:1px solid var(--line-soft);vertical-align:top}
table.compare thead th{background:var(--teal-050);color:var(--teal-900);
  font-family:var(--font-body);font-weight:600;position:sticky;top:0}
table.compare tbody th{background:#fbfdfe;color:var(--ink-900);font-weight:600;
  font-family:var(--font-body);white-space:nowrap}
table.compare tbody tr:hover td{background:var(--bg-soft)}

/* ---- FAQ / accordion -------------------------------------------------- */
.faq{max-width:78ch;display:grid;gap:.7rem}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:1rem 1.2rem;font-weight:600;
  color:var(--ink-900);font-family:var(--font-display);font-size:1.08rem;
  display:flex;justify-content:space-between;gap:1rem;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--teal-600);line-height:1;flex:none}
.faq details[open] summary::after{content:"\2013"}
.faq details[open] summary{border-bottom:1px solid var(--line-soft)}
.faq .faq__body{padding:.4rem 1.2rem 1.2rem}
.faq .faq__body p:last-child{margin-bottom:0}

/* ---- Definition / question lists -------------------------------------- */
.qlist{list-style:none;padding:0;margin:1.2rem 0;display:grid;gap:.7rem}
.qlist li{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:.85rem 1.1rem;padding-left:2.4rem;position:relative;color:var(--ink-700)}
.qlist li::before{content:"?";position:absolute;left:.9rem;top:.85rem;width:1.15rem;height:1.15rem;
  background:var(--teal-050);color:var(--teal-700);border-radius:50%;display:grid;
  place-items:center;font-size:.75rem;font-weight:700;font-family:var(--font-body)}

/* ---- Callout / key points -------------------------------------------- */
.callout{background:var(--teal-050);border:1px solid var(--teal-100);border-radius:var(--radius);
  padding:1.3rem 1.4rem;margin:1.6rem 0}
.callout h3{margin-top:0;color:var(--teal-900)}
.keypoints{list-style:none;padding:0;margin:0;display:grid;gap:.6rem}
.keypoints li{position:relative;padding-left:1.7rem;color:var(--ink-700)}
.keypoints li::before{content:"";position:absolute;left:0;top:.55em;width:.7rem;height:.7rem;
  border-radius:3px;background:var(--teal-600)}

/* ---- Forms ------------------------------------------------------------ */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:clamp(1.4rem,4vw,2.2rem)}
.field{margin-bottom:1.1rem}
.field label{display:block;font-weight:600;color:var(--ink-900);margin-bottom:.35rem;
  font-size:.95rem}
.field .req{color:var(--sand-500)}
.field input,.field select,.field textarea{width:100%;font:inherit;color:var(--ink-900);
  background:#fdfefe;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  padding:.75rem .9rem;transition:border-color .15s ease,box-shadow .15s ease}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;
  border-color:var(--teal-600);box-shadow:0 0 0 3px var(--teal-050)}
.field textarea{min-height:150px;resize:vertical}
.hp-field{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.form-note{background:var(--bg-tint);border-radius:var(--radius-sm);padding:.9rem 1.1rem;
  font-size:.92rem;color:var(--ink-700);margin-bottom:1.4rem}
.form-error{background:#fdeceb;border:1px solid #f3c9c6;color:#9a2b23;border-radius:var(--radius-sm);
  padding:.85rem 1.1rem;margin-bottom:1.2rem;font-size:.95rem}
.form-error ul{margin:.4rem 0 0}
.contact-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:clamp(1.5rem,4vw,2.5rem);
  align-items:start}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr}}

/* ---- Ads (only rendered when enabled) --------------------------------- */
.ad-slot{margin:2rem 0;text-align:center}
.ad-slot__label{display:block;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-400);margin-bottom:.4rem}
.ad-slot ins{display:block}

/* ---- Related / next steps -------------------------------------------- */
.related{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.related a{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:1.1rem 1.2rem;box-shadow:var(--shadow-sm);color:var(--ink-900);font-weight:600;
  font-family:var(--font-display)}
.related a:hover{border-color:var(--teal-100);text-decoration:none;transform:translateY(-2px);
  box-shadow:var(--shadow-md);transition:transform .15s ease}
.related a span{display:block;font-family:var(--font-body);font-weight:400;font-size:.9rem;
  color:var(--ink-600);margin-top:.2rem}

/* ---- 404 -------------------------------------------------------------- */
.err{text-align:center;padding-block:clamp(3rem,8vw,6rem)}
.err__code{font-family:var(--font-display);font-size:clamp(4rem,14vw,8rem);color:var(--teal-100);
  line-height:1;margin:0}

/* ---- Utilities -------------------------------------------------------- */
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.stack>*+*{margin-top:1.1rem}
.divider{height:1px;background:var(--line);border:0;margin:2.2rem 0}
.small{font-size:.9rem;color:var(--ink-400)}

/* ---- Site footer ----------------------------------------------------- */
.site-footer{background:var(--teal-900);color:#cfe4e7;margin-top:4rem;
  padding:3rem 0 1.6rem;font-size:.95rem}
.site-footer a{color:#e3f1f2}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-grid{display:grid;gap:2rem;
  grid-template-columns:1.4fr repeat(4,1fr);align-items:start}
.footer-about__text{color:#a9cace;margin-top:.8rem;max-width:34ch;line-height:1.6}
.site-footer .brand--footer .brand__name,
.site-footer .brand--footer .brand__tld{color:#fff}
.footer-col__title{font-family:var(--font-display);font-size:1rem;color:#fff;
  margin:0 0 .7rem;font-weight:600}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:.45rem}
.footer-disclaimer{border-top:1px solid rgba(255,255,255,.12);
  margin-top:2.4rem;padding-top:1.4rem;color:#a9cace;line-height:1.6;
  font-size:.88rem;max-width:80ch}

/* Bottom bar: copyright on the left, links on the right */
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:.8rem 1.4rem;
  margin-top:1.4rem;padding-top:1.2rem;
  border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom p{margin:0;color:#a9cace}
.footer-bottom__links{list-style:none;display:flex;flex-wrap:wrap;
  gap:1.2rem;margin:0;padding:0}
.footer-bottom__links a{color:#e3f1f2}

@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
}