/*
Theme Name: NIEHUB Services
Theme URI: https://niehubservices.com
Author: NIEHUB SERVICES
Author URI: https://niehubservices.com
Description: Premium, lightweight, mobile-first WordPress theme for NIEHUB SERVICES — AI Websites, Business Automation & Digital Solutions. Custom built for conversion, speed and clarity.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Tested up to: 6.6
License: GNU General Public License v2 or later
License URI: LICENSE
Text Domain: niehub
Tags: custom-background, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, one-column, two-columns, right-sidebar, block-styles, wide-blocks
*/

/* ==========================================================================
   1. DESIGN TOKENS — CSS VARIABLES
   ========================================================================== */
:root{
  /* Brand colors */
  --nh-navy: #0A1628;
  --nh-navy-2: #0F2340;
  --nh-blue: #2563EB;
  --nh-blue-light: #3B82F6;
  --nh-blue-soft: #EFF4FF;
  --nh-green: #25D366; /* WhatsApp / success */
  --nh-green-dark: #1FAE55;

  /* Neutrals */
  --nh-white: #FFFFFF;
  --nh-bg: #F7F9FC;
  --nh-ink: #0B1220;
  --nh-ink-soft: #4B5568;
  --nh-border: #E6EAF2;
  --nh-card: #FFFFFF;

  /* Gradients (used sparingly) */
  --nh-gradient-hero: linear-gradient(135deg, #0A1628 0%, #0F2A52 55%, #123B7A 100%);
  --nh-gradient-accent: linear-gradient(120deg, #2563EB 0%, #3B82F6 100%);

  /* Typography */
  --nh-font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --nh-font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Type scale (fluid) */
  --nh-h1: clamp(2.1rem, 1.5rem + 2.8vw, 3.6rem);
  --nh-h2: clamp(1.7rem, 1.3rem + 1.8vw, 2.6rem);
  --nh-h3: clamp(1.25rem, 1.1rem + 0.8vw, 1.6rem);
  --nh-body: clamp(1rem, 0.95rem + 0.2vw, 1.05rem);
  --nh-small: 0.875rem;

  /* Spacing */
  --nh-space-xs: 0.5rem;
  --nh-space-sm: 1rem;
  --nh-space-md: 1.75rem;
  --nh-space-lg: 3rem;
  --nh-space-xl: 5rem;

  /* Radius / shadow */
  --nh-radius-sm: 10px;
  --nh-radius-md: 16px;
  --nh-radius-lg: 24px;
  --nh-shadow-sm: 0 2px 10px rgba(10,22,40,0.06);
  --nh-shadow-md: 0 10px 30px rgba(10,22,40,0.10);
  --nh-shadow-lg: 0 20px 50px rgba(10,22,40,0.16);

  --nh-container: 1200px;
  --nh-transition: 200ms ease;
}

/* ==========================================================================
   2. RESET / BASE
   ========================================================================== */
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--nh-font-body);
  font-size:var(--nh-body);
  color:var(--nh-ink);
  background:var(--nh-white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{font-family:var(--nh-font-heading);font-weight:700;line-height:1.15;margin:0 0 0.6em;color:var(--nh-navy);}
h1{font-size:var(--nh-h1);}
h2{font-size:var(--nh-h2);}
h3{font-size:var(--nh-h3);}
p{margin:0 0 1em;color:var(--nh-ink-soft);}

/* Accessible focus states */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid var(--nh-blue-light);
  outline-offset:2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
}

/* ==========================================================================
   3. LAYOUT UTILITIES
   ========================================================================== */
.nh-container{max-width:var(--nh-container);margin:0 auto;padding:0 var(--nh-space-sm);}
.nh-section{padding:var(--nh-space-xl) 0;}
.nh-section--tight{padding:var(--nh-space-lg) 0;}
.nh-section--dark{background:var(--nh-gradient-hero);color:var(--nh-white);}
.nh-section--dark h2,.nh-section--dark h3{color:var(--nh-white);}
.nh-section--dark p{color:rgba(255,255,255,0.75);}
.nh-section--soft{background:var(--nh-bg);}
.nh-grid{display:grid;gap:var(--nh-space-md);}
.nh-grid--2{grid-template-columns:repeat(2,1fr);}
.nh-grid--3{grid-template-columns:repeat(3,1fr);}
.nh-grid--4{grid-template-columns:repeat(4,1fr);}
@media (max-width:960px){.nh-grid--3,.nh-grid--4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.nh-grid--2,.nh-grid--3,.nh-grid--4{grid-template-columns:1fr;}}

.nh-eyebrow{
  display:inline-block;font-size:var(--nh-small);font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--nh-blue);background:var(--nh-blue-soft);
  padding:.35rem .8rem;border-radius:999px;margin-bottom:var(--nh-space-sm);
}
.nh-section--dark .nh-eyebrow{background:rgba(255,255,255,0.1);color:#8FBBFF;}
.nh-section-head{max-width:680px;margin:0 auto var(--nh-space-lg);text-align:center;}

/* ==========================================================================
   4. BUTTONS
   ========================================================================== */
.nh-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.9rem 1.6rem;border-radius:999px;font-weight:600;font-size:.95rem;
  border:2px solid transparent;transition:transform var(--nh-transition),box-shadow var(--nh-transition),background var(--nh-transition);
  white-space:nowrap;
}
.nh-btn--primary{background:var(--nh-blue);color:#fff;box-shadow:var(--nh-shadow-sm);}
.nh-btn--primary:hover{background:var(--nh-blue-light);transform:translateY(-2px);box-shadow:var(--nh-shadow-md);}
.nh-btn--whatsapp{background:var(--nh-green);color:#fff;}
.nh-btn--whatsapp:hover{background:var(--nh-green-dark);transform:translateY(-2px);}
.nh-btn--outline{background:transparent;border-color:var(--nh-border);color:var(--nh-navy);}
.nh-btn--outline:hover{border-color:var(--nh-blue);color:var(--nh-blue);}
.nh-section--dark .nh-btn--outline{border-color:rgba(255,255,255,.3);color:#fff;}
.nh-btn--sm{padding:.6rem 1.1rem;font-size:.85rem;}

/* ==========================================================================
   5. HEADER
   ========================================================================== */
.nh-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.9);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--nh-border);
  transition:padding var(--nh-transition),box-shadow var(--nh-transition);
}
.nh-header.is-scrolled{box-shadow:var(--nh-shadow-sm);}
.nh-header__inner{display:flex;align-items:center;justify-content:space-between;padding:1.1rem 0;transition:padding var(--nh-transition);}
.nh-header.is-scrolled .nh-header__inner{padding:.7rem 0;}
.nh-logo{font-family:var(--nh-font-heading);font-weight:700;font-size:1.25rem;color:var(--nh-navy);display:flex;align-items:center;gap:.5rem;}
.nh-logo span{color:var(--nh-blue);}
.nh-nav{display:flex;gap:1.75rem;align-items:center;}
.nh-nav a{font-weight:500;font-size:.95rem;color:var(--nh-ink);transition:color var(--nh-transition);}
.nh-nav a:hover{color:var(--nh-blue);}
.nh-header__actions{display:flex;align-items:center;gap:.75rem;}
.nh-hamburger{display:none;background:none;border:0;padding:.4rem;}
.nh-hamburger span{display:block;width:24px;height:2px;background:var(--nh-navy);margin:5px 0;border-radius:2px;}
@media (max-width:900px){
  .nh-nav{display:none;}
  .nh-hamburger{display:block;}
}

/* Mobile nav drawer */
.nh-mobile-nav{position:fixed;inset:0;background:var(--nh-white);z-index:200;transform:translateX(100%);transition:transform var(--nh-transition);padding:1.5rem;overflow-y:auto;}
.nh-mobile-nav.is-open{transform:translateX(0);}
.nh-mobile-nav a{display:block;padding:.9rem 0;font-size:1.1rem;border-bottom:1px solid var(--nh-border);}
.nh-mobile-nav__close{background:none;border:0;font-size:1.5rem;position:absolute;top:1.5rem;right:1.5rem;}

/* Sticky mobile CTA */
.nh-sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:150;display:none;background:var(--nh-white);border-top:1px solid var(--nh-border);padding:.6rem;box-shadow:0 -4px 16px rgba(0,0,0,0.08);}
.nh-sticky-cta__row{display:flex;gap:.5rem;}
.nh-sticky-cta .nh-btn{flex:1;padding:.75rem;}
@media (max-width:760px){.nh-sticky-cta{display:block;} body{padding-bottom:70px;}}

/* ==========================================================================
   6. HERO
   ========================================================================== */
.nh-hero{background:var(--nh-gradient-hero);color:#fff;padding:5.5rem 0 4rem;overflow:hidden;position:relative;}
.nh-hero--photo{background-image:linear-gradient(135deg, rgba(10,22,40,0.88) 0%, rgba(15,42,82,0.82) 55%, rgba(18,59,122,0.78) 100%), var(--nh-hero-bg-url);background-size:cover;background-position:center;}
.nh-hero__inner{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:center;}
@media (max-width:900px){.nh-hero__inner{grid-template-columns:1fr;text-align:center;}}
.nh-hero h1{color:#fff;}
.nh-hero__rotator{height:2.2rem;overflow:hidden;position:relative;margin:.25rem 0 .5rem;}
.nh-hero__rotator span{
  display:block;position:absolute;top:0;left:0;font-family:var(--nh-font-heading);font-weight:700;
  font-size:1.4rem;color:var(--nh-green);opacity:0;transform:translateY(20px);
  animation:nh-rotate-word 10s infinite;
}
.nh-hero__rotator span:nth-child(1){animation-delay:0s;}
.nh-hero__rotator span:nth-child(2){animation-delay:2s;}
.nh-hero__rotator span:nth-child(3){animation-delay:4s;}
.nh-hero__rotator span:nth-child(4){animation-delay:6s;}
.nh-hero__rotator span:nth-child(5){animation-delay:8s;}
@keyframes nh-rotate-word{
  0%{opacity:0;transform:translateY(20px);}
  4%,16%{opacity:1;transform:translateY(0);}
  20%{opacity:0;transform:translateY(-20px);}
  100%{opacity:0;}
}
@media (max-width:900px){.nh-hero__rotator{margin-left:auto;margin-right:auto;}}
@media (prefers-reduced-motion: reduce){.nh-hero__rotator span{animation:none;opacity:1;position:static;}}
.nh-hero p.lead{color:rgba(255,255,255,.8);font-size:1.1rem;max-width:520px;}
.nh-hero__actions{display:flex;gap:1rem;margin-top:1.75rem;flex-wrap:wrap;}
@media (max-width:900px){.nh-hero__actions{justify-content:center;}}
.nh-hero__trust{margin-top:2rem;font-size:.85rem;color:rgba(255,255,255,.55);letter-spacing:.03em;}

/* Hero floating cards visual */
.nh-hero__visual{position:relative;min-height:360px;}
.nh-hero__panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);border-radius:var(--nh-radius-lg);padding:1.25rem;backdrop-filter:blur(6px);}
.nh-float-card{
  position:absolute;background:#fff;color:var(--nh-navy);border-radius:var(--nh-radius-md);
  padding:.8rem 1rem;box-shadow:var(--nh-shadow-lg);font-size:.85rem;font-weight:600;
  display:flex;align-items:center;gap:.55rem;animation:nh-float 4.5s ease-in-out infinite;
}
.nh-float-card svg{flex-shrink:0;}
.nh-float-card--1{top:6%;left:2%;animation-delay:0s;}
.nh-float-card--2{top:32%;right:0;animation-delay:.6s;}
.nh-float-card--3{bottom:24%;left:8%;animation-delay:1.2s;}
.nh-float-card--4{bottom:0;right:10%;animation-delay:1.8s;}
.nh-float-card--5{top:0;right:28%;animation-delay:2.4s;}
@keyframes nh-float{0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);}}
@media (max-width:900px){.nh-float-card{position:static;display:inline-flex;margin:.3rem;}
  .nh-hero__visual{display:flex;flex-wrap:wrap;justify-content:center;min-height:auto;}}

/* ==========================================================================
   7. SERVICE SLIDER
   ========================================================================== */
.nh-slider{position:relative;}
.nh-slider__track{display:flex;gap:1.25rem;overflow-x:auto;scroll-snap-type:x mandatory;padding:.5rem .25rem 1.25rem;scrollbar-width:none;}
.nh-slider__track::-webkit-scrollbar{display:none;}
.nh-slide{
  scroll-snap-align:start;flex:0 0 min(320px,85%);background:var(--nh-card);border:1px solid var(--nh-border);
  border-radius:var(--nh-radius-lg);overflow:hidden;box-shadow:var(--nh-shadow-sm);transition:box-shadow var(--nh-transition),transform var(--nh-transition);
}
.nh-slide:hover{box-shadow:var(--nh-shadow-md);transform:translateY(-4px);}
.nh-slide__img{aspect-ratio:16/10;background:var(--nh-blue-soft);display:flex;align-items:center;justify-content:center;overflow:hidden;}
.nh-slide__body{padding:1.25rem;}
.nh-slide__body p{font-size:.92rem;margin-bottom:1rem;}
.nh-slider__controls{display:flex;justify-content:center;gap:.6rem;margin-top:.5rem;}
.nh-slider__dot{width:8px;height:8px;border-radius:50%;background:var(--nh-border);border:0;padding:0;}
.nh-slider__dot.is-active{background:var(--nh-blue);width:22px;border-radius:6px;transition:width var(--nh-transition);}
.nh-slider__arrow{position:absolute;top:40%;transform:translateY(-50%);background:#fff;border:1px solid var(--nh-border);width:42px;height:42px;border-radius:50%;box-shadow:var(--nh-shadow-sm);display:flex;align-items:center;justify-content:center;}
.nh-slider__arrow--prev{left:-8px;}
.nh-slider__arrow--next{right:-8px;}
@media (max-width:760px){.nh-slider__arrow{display:none;}}

/* ==========================================================================
   8. CARDS (problem / solution / services / industries)
   ========================================================================== */
.nh-card{background:var(--nh-card);border:1px solid var(--nh-border);border-radius:var(--nh-radius-md);padding:1.5rem;transition:box-shadow var(--nh-transition),transform var(--nh-transition);}
.nh-card:hover{box-shadow:var(--nh-shadow-md);transform:translateY(-3px);}
.nh-card__icon{width:46px;height:46px;border-radius:12px;background:var(--nh-blue-soft);display:flex;align-items:center;justify-content:center;margin-bottom:1rem;color:var(--nh-blue);}
.nh-card h3{font-size:1.1rem;margin-bottom:.4rem;}
.nh-card p{font-size:.92rem;margin-bottom:0;}

.nh-problem-card{border-left:3px solid #E85D5D;}
.nh-problem-card p{margin:0;font-weight:500;color:var(--nh-navy);}

/* ==========================================================================
   9. AI/AUTOMATION SECTION
   ========================================================================== */
.nh-automation__list{display:grid;grid-template-columns:repeat(2,1fr);gap:.9rem 2rem;margin:2rem 0;}
@media (max-width:640px){.nh-automation__list{grid-template-columns:1fr;}}
.nh-automation__item{display:flex;gap:.75rem;align-items:flex-start;color:rgba(255,255,255,.85);font-size:.95rem;}
.nh-automation__item .num{color:var(--nh-blue-light);font-family:var(--nh-font-heading);font-weight:700;}

/* ==========================================================================
   10. HOW IT WORKS
   ========================================================================== */
.nh-steps{counter-reset:step;}
.nh-step{display:flex;gap:1.25rem;padding:1.5rem 0;border-bottom:1px solid var(--nh-border);}
.nh-step:last-child{border-bottom:0;}
.nh-step__num{font-family:var(--nh-font-heading);font-weight:700;font-size:1.4rem;color:var(--nh-blue);flex-shrink:0;width:3rem;}

/* ==========================================================================
   11. SHOWCASING / PORTFOLIO
   ========================================================================== */
.nh-portfolio-card{border-radius:var(--nh-radius-lg);overflow:hidden;border:1px solid var(--nh-border);background:#fff;box-shadow:var(--nh-shadow-sm);transition:transform var(--nh-transition),box-shadow var(--nh-transition);}
.nh-portfolio-card:hover{transform:translateY(-4px);box-shadow:var(--nh-shadow-md);}
.nh-portfolio-card__img{aspect-ratio:4/3;background:linear-gradient(135deg,var(--nh-blue-soft),#fff);display:flex;align-items:center;justify-content:center;color:var(--nh-blue);}
.nh-portfolio-card__body{padding:1.25rem;}
.nh-tag{display:inline-block;font-size:.75rem;font-weight:600;color:var(--nh-blue);background:var(--nh-blue-soft);padding:.25rem .6rem;border-radius:999px;margin-bottom:.6rem;}
.nh-filters{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:2rem;}
.nh-filter-btn{padding:.5rem 1rem;border-radius:999px;border:1px solid var(--nh-border);background:#fff;font-size:.85rem;font-weight:500;}
.nh-filter-btn.is-active{background:var(--nh-navy);color:#fff;border-color:var(--nh-navy);}

/* ==========================================================================
   12. PRICING
   ========================================================================== */
.nh-pricing-card{background:#fff;border:1px solid var(--nh-border);border-radius:var(--nh-radius-lg);padding:2rem;position:relative;display:flex;flex-direction:column;}
.nh-pricing-card--popular{border:2px solid var(--nh-blue);box-shadow:var(--nh-shadow-md);transform:scale(1.02);}
.nh-pricing-card__badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--nh-blue);color:#fff;font-size:.75rem;font-weight:700;padding:.35rem 1rem;border-radius:999px;white-space:nowrap;}
.nh-pricing-card__price{font-family:var(--nh-font-heading);font-size:2rem;font-weight:700;color:var(--nh-navy);margin:.5rem 0 1rem;}
.nh-pricing-card__price small{font-size:.9rem;font-weight:500;color:var(--nh-ink-soft);}
.nh-pricing-card ul{margin:1.25rem 0;flex-grow:1;}
.nh-pricing-card li{display:flex;gap:.6rem;align-items:flex-start;font-size:.9rem;padding:.35rem 0;color:var(--nh-ink-soft);}
.nh-pricing-card li svg{flex-shrink:0;margin-top:2px;color:var(--nh-green);}

.nh-table{width:100%;border-collapse:collapse;font-size:.9rem;}
.nh-table th,.nh-table td{padding:.85rem 1rem;text-align:center;border-bottom:1px solid var(--nh-border);}
.nh-table th:first-child,.nh-table td:first-child{text-align:left;}
.nh-table thead th{font-family:var(--nh-font-heading);color:var(--nh-navy);}
.nh-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;}

/* ==========================================================================
   13. FAQ
   ========================================================================== */
.nh-faq-item{border-bottom:1px solid var(--nh-border);}
.nh-faq-item__q{width:100%;text-align:left;background:none;border:0;padding:1.2rem 0;font-weight:600;font-family:var(--nh-font-heading);display:flex;justify-content:space-between;align-items:center;font-size:1rem;color:var(--nh-navy);}
.nh-faq-item__a{max-height:0;overflow:hidden;transition:max-height var(--nh-transition);}
.nh-faq-item.is-open .nh-faq-item__a{max-height:500px;padding-bottom:1.2rem;}
.nh-faq-item__icon{transition:transform var(--nh-transition);}
.nh-faq-item.is-open .nh-faq-item__icon{transform:rotate(45deg);}

/* ==========================================================================
   14. FORMS
   ========================================================================== */
.nh-form{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
.nh-form--single{grid-template-columns:1fr;}
@media (max-width:640px){.nh-form{grid-template-columns:1fr;}}
.nh-field{display:flex;flex-direction:column;gap:.4rem;}
.nh-field--full{grid-column:1 / -1;}
.nh-field label{font-size:.85rem;font-weight:600;color:var(--nh-navy);}
.nh-field input,.nh-field select,.nh-field textarea{
  padding:.8rem 1rem;border:1px solid var(--nh-border);border-radius:var(--nh-radius-sm);
  font-family:inherit;font-size:.95rem;background:#fff;
}
.nh-field textarea{resize:vertical;min-height:110px;}
.nh-form-msg{padding:.9rem 1rem;border-radius:var(--nh-radius-sm);font-size:.9rem;margin-top:1rem;}
.nh-form-msg--success{background:#E9FBF0;color:#0F7A3C;}
.nh-form-msg--error{background:#FDECEC;color:#B42318;}

/* ==========================================================================
   15. WHATSAPP FLOAT BUTTON
   ========================================================================== */
.nh-whatsapp-float{
  position:fixed;bottom:1.5rem;right:1.5rem;z-index:180;background:var(--nh-green);color:#fff;
  width:58px;height:58px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 24px rgba(37,211,102,0.4);transition:transform var(--nh-transition);
}
.nh-whatsapp-float:hover{transform:scale(1.08);}
@media (max-width:760px){.nh-whatsapp-float{bottom:80px;right:1rem;width:52px;height:52px;}}

/* ==========================================================================
   16. FOOTER
   ========================================================================== */
.nh-footer{background:var(--nh-navy);color:rgba(255,255,255,.7);padding-top:var(--nh-space-xl);}
.nh-footer h4{color:#fff;font-size:.95rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:1.1rem;}
.nh-footer a{color:rgba(255,255,255,.65);font-size:.9rem;line-height:2.1;transition:color var(--nh-transition);}
.nh-footer a:hover{color:#fff;}
.nh-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem;padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.1);}
@media (max-width:760px){.nh-footer__grid{grid-template-columns:1fr 1fr;}}
.nh-footer__bottom{display:flex;justify-content:space-between;padding:1.5rem 0;font-size:.82rem;flex-wrap:wrap;gap:.5rem;}
.nh-footer-cta{background:var(--nh-gradient-accent);border-radius:var(--nh-radius-lg);padding:2.5rem;text-align:center;margin-top:-4.5rem;position:relative;z-index:2;box-shadow:var(--nh-shadow-lg);}
.nh-footer-cta h3{color:#fff;margin-bottom:1rem;}

/* ==========================================================================
   17. MISC
   ========================================================================== */
/* ==========================================================================
   18. SCROLL REVEAL / INTERACTIVITY
   ========================================================================== */
.nh-reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease, transform .6s ease;}
.nh-reveal-visible{opacity:1;transform:translateY(0);}
.nh-nav a.is-active{color:var(--nh-blue);}
.nh-float-card{transition:transform 120ms ease-out;}

.nh-back-to-top{
  position:fixed;bottom:1.5rem;left:1.5rem;z-index:170;width:46px;height:46px;border-radius:50%;
  background:var(--nh-navy);color:#fff;border:0;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--nh-shadow-md);opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity var(--nh-transition), transform var(--nh-transition);
}
.nh-back-to-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0);}
.nh-back-to-top:hover{background:var(--nh-blue);}
@media (max-width:760px){.nh-back-to-top{bottom:80px;left:1rem;width:42px;height:42px;}}
@media (prefers-reduced-motion: reduce){.nh-reveal{opacity:1;transform:none;transition:none;}}

.nh-skip-link{position:absolute;left:-999px;top:auto;background:#fff;padding:1rem;z-index:999;}
.nh-skip-link:focus{left:1rem;top:1rem;}
.screen-reader-text{position:absolute;clip:rect(1px,1px,1px,1px);overflow:hidden;height:1px;width:1px;}