/*
Theme Name: IELLC 2026
Theme URI: https://interfaceengineer.com/
Author: Steve Wright
Description: IELLC 2026 — one-page scroll theme for Interface Engineer LLC. WebGL hero, client work slider, testimonial rotator, admin-editable content sections.
Version: 2.1.0
License: GPL-2.0-or-later
Text Domain: iellc-2026
*/

/* ============ Tokens ============ */
:root{
  --bg:#0a0b0d;
  --bg-2:#101216;
  --card:#14171c;
  --ink:#f3eee4;
  --muted:#9b958a;
  --faint:#6a655d;
  --accent:#f0a44f;      /* warm amber (brand heritage) */
  --accent-2:#e7c56f;    /* gold */
  --teal:#2dd4bf;        /* technical secondary */
  --line:#23262c;
  --wrap:1120px;
  --nav-h:68px;
  --serif:'Instrument Serif',Georgia,serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --sans:'Hanken Grotesk',system-ui,sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
::selection{background:var(--accent);color:#0a0b0d}

.ie-wrap{max-width:var(--wrap);margin:0 auto;padding:0 clamp(20px,5vw,48px)}
.ie-skip{position:absolute;left:-999px}
.ie-skip:focus{left:16px;top:16px;z-index:200;background:var(--accent);color:#000;padding:10px 16px;border-radius:4px}

/* ============ Type ============ */
.ie-eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);margin:0 0 18px}
.ie-h2{font-family:var(--serif);font-weight:400;font-size:clamp(30px,4.4vw,52px);line-height:1.06;letter-spacing:-.01em;margin:0;max-width:18ch}
.ie-lead{font-family:var(--serif);font-size:clamp(22px,3vw,34px);line-height:1.3;color:var(--ink);margin:0}

/* ============ Nav ============ */
.ie-nav{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  display:flex;align-items:center;
  background:transparent;transition:background .3s ease,border-color .3s ease,backdrop-filter .3s;
  border-bottom:1px solid transparent}
.ie-nav.is-stuck{background:rgba(10,11,13,.82);backdrop-filter:blur(12px);border-bottom-color:var(--line)}
.ie-nav__inner{max-width:var(--wrap);width:100%;margin:0 auto;padding:0 clamp(20px,5vw,48px);
  display:flex;align-items:center;justify-content:space-between}
.ie-nav__brand{font-family:var(--mono);font-size:14px;letter-spacing:.12em;text-transform:uppercase;text-decoration:none;color:var(--ink)}
.ie-nav__brand span{color:var(--teal)}
.ie-nav__links{display:flex;align-items:center;gap:clamp(14px,2vw,28px)}
.ie-nav__links a{font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;color:var(--muted);transition:color .2s}
.ie-nav__links a:hover{color:var(--ink)}
.ie-nav__cta{padding:8px 16px;border:1px solid var(--line);border-radius:3px;color:var(--ink) !important}
.ie-nav__cta:hover{border-color:var(--accent);color:var(--accent) !important}
.ie-nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.ie-nav__toggle span{width:24px;height:2px;background:var(--ink);transition:transform .3s,opacity .3s}

/* ============ Hero ============ */
.ie-hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden;
  background:radial-gradient(130% 100% at 72% 30%, #15171c 0%, #0a0b0d 60%)}
.ie-hero__canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.ie-hero__veil{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(120% 90% at 70% 35%,transparent 38%,rgba(10,11,13,.82) 100%)}
.ie-hero__content{position:relative;z-index:2;padding-top:var(--nav-h)}
.ie-hero__title{font-family:var(--serif);font-weight:400;font-size:clamp(42px,7.6vw,108px);line-height:.98;
  letter-spacing:-.015em;margin:0;max-width:14ch}
.ie-hero__title em{font-style:italic;color:var(--accent)}
.ie-hero__sub{max-width:54ch;margin:26px 0 0;font-size:clamp(16px,1.5vw,19px);color:var(--muted)}
.ie-hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.ie-hero__readout{position:absolute;left:0;right:0;bottom:18px;z-index:2;
  display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--faint);padding:0 clamp(20px,5vw,48px)}

/* Buttons */
.ie-btn{display:inline-block;font-family:var(--mono);font-size:13px;letter-spacing:.07em;text-transform:uppercase;
  text-decoration:none;padding:14px 24px;border-radius:3px;transition:all .22s ease;cursor:pointer;border:1px solid transparent}
.ie-btn--solid{background:var(--ink);color:#0a0b0d}
.ie-btn--solid:hover{background:var(--accent)}
.ie-btn--ghost{color:var(--muted);border-color:var(--line)}
.ie-btn--ghost:hover{color:var(--ink);border-color:var(--teal)}

/* ============ Sections ============ */
.ie-section{padding:clamp(64px,11vw,140px) 0;position:relative}
.ie-head{margin-bottom:clamp(36px,6vw,68px)}
.ie-intro{border-top:1px solid var(--line)}
.ie-intro__grid{display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(32px,6vw,80px);align-items:center}
.ie-stats{display:flex;flex-direction:column;gap:22px}
.ie-stat{display:flex;flex-direction:column;border-left:2px solid var(--accent);padding-left:18px}
.ie-stat__n{font-family:var(--serif);font-size:clamp(28px,4vw,40px);line-height:1;color:var(--ink)}
.ie-stat__l{font-size:14px;color:var(--muted);margin-top:6px}

/* Cards */
.ie-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.ie-card{background:var(--bg);padding:clamp(26px,3vw,40px);transition:background .25s}
.ie-card:hover{background:var(--card)}
.ie-card__num{font-family:var(--mono);font-size:12px;color:var(--teal);letter-spacing:.1em}
.ie-card__t{font-family:var(--serif);font-weight:400;font-size:25px;margin:14px 0 10px}
.ie-card__p{font-size:15.5px;color:var(--muted);margin:0}

/* Approach */
.ie-approach{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ie-approach__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,72px);align-items:start}
.ie-approach__body p{color:var(--muted);margin:0 0 18px;font-size:17px}
.ie-approach__grid .ie-head{margin-bottom:0}

/* Work / marquee */
.ie-work{overflow:hidden}
.ie-marquee{overflow:hidden;padding:9px 0;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.ie-marquee__track{display:flex;gap:16px;width:max-content;will-change:transform;animation:ie-scroll 60s linear infinite}
.ie-marquee[data-dir="rev"] .ie-marquee__track{animation-direction:reverse;animation-duration:72s}
.ie-marquee:hover .ie-marquee__track{animation-play-state:paused}
.ie-marquee__track{gap:26px}
.ie-work-card{flex:0 0 auto;width:clamp(300px,34vw,420px);text-decoration:none;color:inherit;
  display:block;transition:transform .35s ease}
.ie-work-card__shot{display:block;aspect-ratio:1280/820;border:1px solid var(--line);border-radius:10px;
  overflow:hidden;background:var(--card);box-shadow:0 12px 30px rgba(0,0,0,.35)}
.ie-work-card__shot img{width:100%;height:100%;object-fit:cover;object-position:top center;
  filter:grayscale(.35) brightness(.92);transition:filter .4s ease,transform .6s ease}
.ie-work-card__meta{display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  margin-top:14px;font-family:var(--mono);font-size:13px;letter-spacing:.04em}
.ie-work-card__name{color:var(--ink)}
.ie-work-card__go{color:var(--accent);opacity:0;transform:translateX(-6px);transition:opacity .3s,transform .3s}
.ie-work-card:hover{transform:translateY(-6px)}
.ie-work-card:hover .ie-work-card__shot img{filter:none;transform:scale(1.03)}
.ie-work-card:hover .ie-work-card__go{opacity:1;transform:none}
@keyframes ie-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* Testimonials */
.ie-words{background:var(--bg-2);border-top:1px solid var(--line)}
.ie-quotes{position:relative;max-width:840px}
.ie-quote{position:absolute;inset:0;opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .5s ease,transform .5s ease}
.ie-quote.is-active{position:relative;opacity:1;visibility:visible;transform:none}
.ie-quote blockquote{font-family:var(--serif);font-weight:400;font-size:clamp(24px,3.4vw,40px);line-height:1.28;
  margin:0;color:var(--ink)}
.ie-quote blockquote::before{content:"\201C";color:var(--accent);margin-right:.06em}
.ie-quote figcaption{margin-top:26px;font-family:var(--mono);font-size:13px;letter-spacing:.04em;
  display:flex;gap:14px;align-items:baseline;flex-wrap:wrap}
.ie-quote__a{color:var(--ink);text-transform:uppercase;letter-spacing:.1em}
.ie-quote__c{color:var(--teal)}
.ie-quotes__nav{display:flex;align-items:center;gap:18px;margin-top:40px}
.ie-quotes__nav button{width:42px;height:42px;border:1px solid var(--line);background:none;color:var(--ink);
  border-radius:50%;cursor:pointer;font-size:16px;transition:border-color .2s,color .2s}
.ie-quotes__nav button:hover{border-color:var(--accent);color:var(--accent)}
.ie-quotes__dots{display:flex;gap:8px}
.ie-quotes__dots button{width:8px;height:8px;border-radius:50%;border:0;padding:0;background:var(--line);cursor:pointer;transition:background .2s,transform .2s}
.ie-quotes__dots button.is-on{background:var(--accent);transform:scale(1.3)}

/* Contact */
.ie-contact{border-top:1px solid var(--line)}
.ie-contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,72px);align-items:start}
.ie-contact__copy{color:var(--muted);margin-top:18px;max-width:42ch}
.ie-form{display:flex;flex-direction:column;gap:16px}
.ie-form label,.wpcf7-form label{display:flex;flex-direction:column;gap:7px;font-family:var(--mono);font-size:12px;
  letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.ie-form input,.ie-form textarea,
.wpcf7-form input[type=text],.wpcf7-form input[type=email],.wpcf7-form textarea{
  background:var(--bg-2);border:1px solid var(--line);border-radius:4px;color:var(--ink);
  font-family:var(--sans);font-size:16px;padding:13px 14px;transition:border-color .2s;text-transform:none;letter-spacing:0}
.ie-form input:focus,.ie-form textarea:focus,
.wpcf7-form input:focus,.wpcf7-form textarea:focus{outline:none;border-color:var(--accent)}
.ie-form__note{font-size:14px;color:var(--muted);margin:4px 0 0}
.ie-form__note a{color:var(--accent)}
.wpcf7-form input[type=submit]{background:var(--ink);color:#0a0b0d;border:0;font-family:var(--mono);
  text-transform:uppercase;letter-spacing:.07em;padding:14px 24px;border-radius:3px;cursor:pointer;transition:background .2s}
.wpcf7-form input[type=submit]:hover{background:var(--accent)}

/* Interior pages */
.ie-prose{max-width:70ch;color:var(--muted);font-size:18px}
.ie-prose h2,.ie-prose h3{font-family:var(--serif);color:var(--ink);font-weight:400}
.ie-prose a{color:var(--accent)}
.ie-page__wrap{padding-bottom:60px}

/* Footer */
.ie-footer{border-top:1px solid var(--line);padding:40px 0}
.ie-footer__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.ie-footer__brand{font-family:var(--mono);font-size:13px;letter-spacing:.12em;text-transform:uppercase}
.ie-footer__brand span{color:var(--teal)}
.ie-footer__links{display:flex;gap:20px}
.ie-footer__links a{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;color:var(--muted)}
.ie-footer__links a:hover{color:var(--ink)}
.ie-footer__copy{font-size:12.5px;color:var(--faint)}

/* ============ Reveal animation ============ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0s)}
.reveal.is-in{opacity:1;transform:none}

/* ============ Responsive ============ */
@media(max-width:860px){
  .ie-nav__links{position:fixed;inset:var(--nav-h) 0 auto 0;background:rgba(10,11,13,.97);backdrop-filter:blur(14px);
    flex-direction:column;align-items:flex-start;gap:0;padding:8px 0;border-bottom:1px solid var(--line);
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:opacity .25s,transform .25s}
  .ie-nav.is-open .ie-nav__links{opacity:1;transform:none;pointer-events:auto}
  .ie-nav__links a{width:100%;padding:14px clamp(20px,5vw,48px);font-size:14px}
  .ie-nav__cta{border:0;border-radius:0}
  .ie-nav__toggle{display:flex}
  .ie-nav.is-open .ie-nav__toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .ie-nav.is-open .ie-nav__toggle span:nth-child(2){opacity:0}
  .ie-nav.is-open .ie-nav__toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .ie-intro__grid,.ie-approach__grid,.ie-contact__grid{grid-template-columns:1fr}
  .ie-cards{grid-template-columns:1fr}
}
@media(max-width:560px){
  .ie-work-card{width:78vw}
  .ie-hero__readout{display:none}
}

/* ============ Reduced motion ============ */
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .ie-marquee__track{animation:none}
  *{scroll-behavior:auto !important}
}

/* ============ Smooth anchor scrolling ============ */
html{scroll-behavior:smooth}
section[id],main[id]{scroll-margin-top:var(--nav-h)}