/* ==========================================================================
   HES Storage – styles.css
   1. Tokens  2. Base  3. Layout  4. Components  5. Sections  6. Motion  7. Responsive
   ========================================================================== */

/* 1. TOKENS ---------------------------------------------------------------- */
:root {
  --c-navy: #122752;
  --c-navy-deep: #081d47;
  --c-blue: #1f5ba8;
  --c-sky:#74c4fa;
  --c-ink: #14181f;
  --c-ink-1: #14181f;
  --c-muted: #6b7686;
  --c-line: #d5d9e0;
  --c-bg: #fff;

  --f-head: "Space Grotesk", system-ui, sans-serif;
  --f-body: "Titillium Web", system-ui, sans-serif;

  --container: 1180px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --section-y: clamp(4rem, 9vw, 4rem);
  --header-h: 92px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: .6s;
}
.loogo-banner
{position: absolute;top: 10px;right: 0;padding: 0;width: 220px;}

/* 2. BASE ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body { margin: 0; font: 400 1rem/1.6 var(--f-body); color: var(--c-ink); background: var(--c-bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
ul { list-style: none; margin: 0; padding: 0; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--c-sky); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 1rem; top: -4rem; background: var(--c-sky); padding: .5rem 1rem; z-index: 200; }
.skip-link:focus { top: 1rem; }
p{font-size: 15px; font-weight: 500;color: #000000;line-height: 30px;}
.brand img{ width: 260px;}
.mb-20{margin-bottom: 11px;}
.logo-footer img {     width: 81px; margin-bottom: 11px;} 
.cards--5 {grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));margin-top: 0;}
.sec-about{ padding: 3em 0 2em 0;}
.div-flex{display: flex;gap: 20px;    margin-bottom: 17px;}
.stick-iocn-img { position: fixed; bottom: 34px; right: 29px;width: 50px;filter: drop-shadow(4px 5px 3px rgba(12, 12, 12, 0.5));}
/* 3. LAYOUT ---------------------------------------------------------------- */
.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.section { padding-block: var(--section-y); }
.section--dark { background: var(--c-navy); color: #fff; }
.split { display: grid; grid-template-columns: 1fr; gap: 1.5rem; align-items: start; }
.split > .eyebrow { align-self: center; }
@media (min-width: 900px) { .split { grid-template-columns: 200px 1fr; gap: 3rem; } }

/* 4. COMPONENTS ------------------------------------------------------------ */
.eyebrow { display: inline-flex; align-items: center; gap: .6rem; font-size: 12px; text-transform: uppercase; font-weight: 600; letter-spacing: .04em; color: var(--c-navy); }
.section--dark .eyebrow, .eyebrow--light { color: var(--c-sky); }
.eyebrow--light { color: #fff;text-transform: uppercase; }
.dot { margin-right: 10px; width: 10px; height: 10px; border-radius: 50%; background: var(--c-sky); box-shadow: 0 0 0 4px rgb(91 200 255 / .25); animation: dot-breathe 2.4s ease-in-out infinite;}
@keyframes dot-breathe {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 4px rgb(91 200 255 / .25); }
  50% { transform: scale(1.35); box-shadow: 0 0 0 8px rgb(91 200 255 / .08); }
}
.kicker { font-size: 12px;    font-weight: 600; letter-spacing: .05em; text-transform: uppercase; color: #76c8fa; margin-bottom: .75rem; }
.accent { color: var(--c-sky); }
.muted { color: #a9b0b8; }
.small { font-size: 14px; color: #282728; }
.section--dark .small, .text-soft { color: #9da3a9; }

.h2 { font: 600 clamp(1.6rem, 3.2vw, 2.2rem)/1.2 var(--f-head); letter-spacing: -.01em; }
.h2--lg { font-size: clamp(1.5rem, 2.8vw, 2rem); }
.h2--xl { font-size: clamp(2.2rem, 5vw, 3.1rem); line-height: 1.12; margin-bottom: 1.25rem; }
.h3 { font: 500 clamp(1.15rem, 2vw, 1.4rem)/1.3 var(--f-head); margin-bottom: 1rem; }

.btn { display: inline-flex; align-items: center; gap: .9rem; padding: .7rem 1.1rem; font-size: 15px; font-weight: 600; border: 1px solid transparent; cursor: pointer; transition: background-color .25s var(--ease), color .25s var(--ease), transform .25s var(--ease); }
.btn--primary { background: var(--c-sky); color: var(--c-navy-deep); }
.btn--primary:hover { background: #82d6ff; transform: translateY(-2px); }
.btn--outline { border-color: var(--c-navy); color: var(--c-navy); background: transparent;font-size: 15px;margin-left: 17px; }
.btn--outline:hover { background: var(--c-navy); color: #fff; }
.btn--light { border-color: #fff; color: #fff; }
.btn--light:hover { background: #fff; color: var(--c-navy); }
.btn-group { display: flex; flex-wrap: wrap; gap: .8rem; }
.link-arrow { font-size: 15px; font-weight: 600; white-space: nowrap; }
.link-arrow:hover { color: var(--c-blue); }

.cards { display: grid; border-top: 1px solid var(--c-line); }
.cards--4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin-top: 3.5rem; }
.cards--2 { grid-template-columns: 1fr 1fr; }
.card { padding: 1.5rem 1.25rem 2rem; border-left: 1px solid var(--c-line); min-height: 170px; transition: background-color .3s var(--ease); }
.card:first-child { border-left: 0; }
.card__num { display: block; font-size:19px; color: #4478e1; margin-bottom: 2.0rem; }
.card h3 { font: 500 .95rem var(--f-head); margin-bottom: .5rem;font-size:16px; }
.card p { font-size: 15px; line-height: 1.5; color: var(--c-muted); }
.card--active, .cards--4 .card:hover { background: var(--c-sky); }
.card--active .card__num, .card--active p, .cards--4 .card:hover p, .cards--4 .card:hover .card__num { color: var(--c-navy-deep); }
.card--plain { border-left: 0; border-bottom: 1px solid var(--c-line); }
.card--plain:nth-child(odd) { border-right: 1px solid var(--c-line); }
.card--plain:nth-last-child(-n+2) { border-bottom: 0; }

/* 5. SECTIONS -------------------------------------------------------------- */
/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: #fff; height: var(--header-h); transition: box-shadow .3s var(--ease); }
.site-header.is-scrolled { box-shadow: 0 2px 18px rgb(10 37 89 / .12); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.brand { display: flex; align-items: center; gap: .8rem; font: 500 1.05rem var(--f-head); color: var(--c-navy); }
.brand__logo { width: 44px; height: 44px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #6fc3ff, #0b3f9a 60%, #06225c); border: 2px solid var(--c-navy); flex: none; display: block; }
.brand__logo--lg { width: 80px; height: 80px; margin-bottom: 2.5rem; border-color: #fff; }
.nav { display: flex; align-items: center; gap: 2rem; }
.nav__list { display: flex; gap: 1.6rem; font-size: .8rem; color: var(--c-navy); }
.nav__list a { position: relative; padding-block: .3rem;    color: #061959; font-size: 15px;font-weight: 550; }
.nav__list a::after { content: ""; position: absolute; inset: auto 0 0; height: 2px; background: var(--c-sky); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.nav__list a:hover::after, .nav__list a.is-active::after { transform: scaleX(1); }
.nav-toggle { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; }
.nav-toggle__bar, .nav-toggle__bar::before { content: ""; display: block; width: 24px; height: 2px; background: var(--c-navy); position: relative; margin: auto; transition: transform .3s var(--ease); }
.nav-toggle__bar::before { top: -7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before { transform: translateY(7px) rotate(-90deg); }

/* Hero */
.hero { position: relative; min-height: clamp(460px, 62vh, 640px); display: flex; align-items: center; color: #fff; overflow: hidden; background: var(--c-navy-deep); }
.hero__slider { position: absolute; inset: 0; }
.hero__slide { position: absolute; inset: -10% 0; will-change: transform; opacity: 0; transition: opacity 1s var(--ease); }
.hero__slide.is-active { opacity: 1; }
.hero__slide--1 { background: linear-gradient(90deg, rgb(10 20 30 / .92) 0%, rgb(10 20 30 / .55) 55%, rgb(10 20 30 / .2) 100%), url("../images/banner-1.avif") center / cover, repeating-linear-gradient(90deg, #1d2a36 0 60px, #26394a 60px 120px); }
.hero__slide--2 { background: linear-gradient(90deg, rgb(10 20 30 / .92) 0%, rgb(10 20 30 / .55) 55%, rgb(10 20 30 / .2) 100%), url("../images/hero.png") center / cover, repeating-linear-gradient(90deg, #1d2a36 0 60px, #26394a 60px 120px); }
.hero__slide--3 { background: linear-gradient(90deg, rgb(10 20 30 / .92) 0%, rgb(10 20 30 / .55) 55%, rgb(10 20 30 / .2) 100%), url("../images/marine-hes.webp") center / cover, repeating-linear-gradient(90deg, #1d2a36 0 60px, #26394a 60px 120px); }
.hero__slide--4 { background: linear-gradient(90deg, rgb(10 20 30 / .92) 0%, rgb(10 20 30 / .55) 55%, rgb(10 20 30 / .2) 100%), url("../images/mobility.png") center / cover, repeating-linear-gradient(90deg, #1d2a36 0 60px, #26394a 60px 120px); }
.hero__slide--5 { background: linear-gradient(90deg, rgb(10 20 30 / .92) 0%, rgb(10 20 30 / .55) 55%, rgb(10 20 30 / .2) 100%), url("../images/Hydrogen-Train-Through-a-Sustainable-Future.png") center / cover, repeating-linear-gradient(90deg, #1d2a36 0 60px, #26394a 60px 120px); }


/* Slider controls */
.hero__controls { position: absolute; bottom: 1.5rem; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 1rem; z-index: 2; white-space: nowrap; }
.hero__arrow { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; border: 1px solid rgb(255 255 255 / .3); background: rgb(255 255 255 / .08); color: #fff; cursor: pointer; backdrop-filter: blur(6px); transition: background .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease); }
.hero__arrow:hover { background: var(--c-sky); border-color: var(--c-sky); color: var(--c-navy-deep); transform: scale(1.1); }
.hero__track { display: flex; align-items: center; gap: .5rem; }
.hero__dot { position: relative; width: 28px; height: 4px; border-radius: 2px; border: 0; background: rgb(255 255 255 / .25); cursor: pointer; padding: 0; overflow: hidden; transition: width .3s var(--ease), background .3s var(--ease); }
.hero__dot.is-active { width: 52px; background: rgb(255 255 255 / .35); }
.hero__dot-fill { position: absolute; inset: 0 100% 0 0; background: var(--c-sky); border-radius: 2px; }
.hero__dot.is-active .hero__dot-fill { animation: dot-progress 5s linear forwards; }
@keyframes dot-progress { to { right: 0; } }
.hero__counter { font: 600 .7rem var(--f-head); color: rgb(255 255 255 / .6); letter-spacing: .05em; white-space: nowrap; min-width: 3.5rem; text-align: center; }
.hero__counter-sep { color: rgb(255 255 255 / .3); }
.hero__content { position: relative; padding-block: 3rem; padding-bottom: 5rem; }
.hero__title { font: 600 clamp(2.4rem, 6vw, 3.9rem)/1.1 var(--f-head); max-width: 13ch; margin: 1.2rem 0 1.5rem; }
.hero__title span { display: block; }
.hero__lead { max-width: 51ch; font-size: 15px; margin-bottom: 1.8rem; }
.ticker { overflow: hidden; background: var(--c-sky); font-size: .65rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--c-navy-deep); }
.ticker__track { display: flex; width: max-content; animation: ticker-scroll 18s linear infinite;font-size: 12px;color: #000000; }
.ticker__track span { padding: 1rem 2.5rem; white-space: nowrap; }
.ticker__track span + span::before { content: "•"; margin-right: 2.5rem; }
@keyframes ticker-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* Challenge */
.split__foot { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-top: 1.5rem; font-size: .8rem; color: #444; }
.split__foot-1{ max-width: 108ch; }
.split__foot-1 p {text-align: justify;margin-bottom: 15px;}

/* Platform */
.platform { display: grid; gap: 2.5rem; margin-top: 3rem; }
.media { margin: 0; min-height: 320px;
  background: url("../images/lab.png") center / cover, linear-gradient(160deg, #8d98a6, #3b4654); }
.list { margin-top: 2rem; }
.list li { display: flex; gap: 1.2rem; padding: 1rem 0; border-top: 1px solid rgb(255 255 255 / .2); }
.list__num { color: #9af9ff; font-size: 17px;font-weight: 600; }
.list strong { font: 500 15px var(--f-head); color: #fff; }
.list li { cursor: pointer; }
.list li.is-active-process { border-top-color: var(--c-sky); background: rgb(91 200 255 / .08); padding-inline: .75rem; }
.list li.is-active-process .list__num { color: var(--c-sky); }
.list li.is-active-process strong { color: var(--c-sky); }
.list p { font-size: 15px; color: #9da3a9; }
@media (min-width: 900px) { .platform { grid-template-columns: 1fr 1fr; align-items: center; } }

/* Why */
.why { display: grid; gap: 2.5rem; }
.why .small { margin-top: 1rem; max-width: 38ch; color: #000000;font-size: 15px;}
.promise { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 4rem; padding-block: 1.3rem; border-block: 1px solid var(--c-line); }
.promise p { font: 500 1rem var(--f-head); }
@media (min-width: 900px) { .why { grid-template-columns: 1fr 1fr; } }

/* Sectors */
.filters { display: flex;flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin: 3.5rem 0 1.2rem; padding-block: 1rem; border-top: 1px solid rgb(255 255 255 / .25); font-size: .65rem; text-transform: uppercase; letter-spacing: .05em; }
.filters__tabs { display: flex; flex-wrap: wrap; gap: 1.6rem; }
.filter { background: none; border: 0; border-bottom: 2px solid transparent; padding: .3rem 0; cursor: pointer; text-transform: inherit; letter-spacing: inherit; color: #9da3a9;font-size: 13px;font-weight:550; }
.filter:hover, .filter.is-active { color: var(--c-sky); border-color: var(--c-sky); }
.filters__meta { color: #c8d3ea; }
.sectors { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.sector { min-height: 270px; background: #0f4aa0; border: 1px solid var(--c-sky); will-change: transform; transform-origin: top left; }
.sector--mid { background: #1c6bc4; }
.sector--feature { background:
  linear-gradient(180deg, rgb(8 29 71 / .1), rgb(8 29 71 / .9)),
  url("../assets/images/mobility.jpg") center / cover, #0a2e6e; }
.sector a { position: relative; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; padding: 1.4rem; }
.sector__tag { position: absolute; top: 1.4rem; font-size: .65rem; color: var(--c-sky); }
.sector h3 { font: 500 1.5rem/1.15 var(--f-head); margin-bottom: .5rem; }
.sector p { font-size:15px; color: #8f98a9; max-width: 30ch; }
.sector__go { position: absolute; right: 1.2rem; bottom: 1.2rem; font-size: .8rem; transition: transform .3s var(--ease); }
.sector:hover .sector__go, .sector.is-tall .sector__go { transform: translate(3px, -3px); }
.sector[hidden] { display: none; }

/* Desktop: fixed 3x2 grid. One card is always tall (2 rows); the rest reflow around it. */
@media (min-width: 900px) {
  .sectors { grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(2, 270px); grid-auto-flow: dense; }
  .sector { min-height: 0; }
  .sector.is-tall { grid-row: 1 / span 2; grid-column: var(--col, 1); }
}

/* Contact */
.contact { display: grid; gap: 3rem; }
.contact__meta { display: flex; justify-content: space-between; gap: 1rem; max-width: 380px; margin-top: 4rem; padding-top: 1rem; border-top: 1px solid var(--c-line); font-size: .65rem; color: var(--c-navy); text-transform: uppercase; }
.form { display: grid; gap: 1rem; max-width: 460px; }
.field { display: block; padding-top: .7rem; border-top: 1px solid var(--c-line); }
.field span { display: block; font-size: .6rem; text-transform: uppercase; letter-spacing: .05em; color: var(--c-sky); }
.field input, .field select, .field textarea { width: 100%; border: 0; background: transparent; padding: .4rem 0; font-size: .8rem; text-transform: uppercase; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; }
.field:focus-within { border-top-color: var(--c-sky); }
.field.is-invalid { border-top-color: #d33; }
.field.is-invalid span { color: #d33; }
.form .btn { justify-self: start; }
.form__note { font-size: .65rem; color: var(--c-muted); }
.form__note.is-error { color: #d33; }
.form__note.is-success { color: #1a8a4a; }
@media (min-width: 900px) { .contact { grid-template-columns: 1fr 1fr; } }

/* Footer */
.site-footer { background:#4d85b7; color: #fff; padding-top: 3rem; }
.footer__grid { display: grid; gap: 2rem; padding-bottom: 3rem; }
.footer__tag { max-width: 24ch; font-size: .95rem; }
.footer__contact { display: grid; gap: .8rem; align-content: start; font-size: 1rem; }
.social { display: flex; gap: 1.2rem; margin-top: 0rem; font-weight: 600;align-items: flex-end; }
.social a:hover { color: var(--c-navy); }
.footer__bar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem; padding-block: 1.2rem; border-top: 1px solid rgb(255 255 255 / .35); font-size: 14px; }
@media (min-width: 800px) { .footer__grid { grid-template-columns: 1fr 1fr; align-items: end; } .footer__contact { justify-self: end; min-width: 280px; } }

/* 6. MOTION HOOKS ----------------------------------------------------------
   JS adds .is-visible via IntersectionObserver. Edit here to restyle every
   animated element. Content is hidden only when JS runs (html.js). */
.js [data-reveal], .js [data-stagger] > * { opacity: 0; transform: translateY(24px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.js [data-stagger] > * { transition-delay: calc(var(--i, 0) * 80ms); }
.js [data-reveal].is-visible, .js [data-stagger].is-visible > * { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .js [data-reveal], .js [data-stagger] > * { opacity: 1; transform: none; }
}

/* 7. RESPONSIVE ------------------------------------------------------------ */
@media (max-width: 899px) {
  .nav-toggle { display: block; }
  .nav { position: absolute; inset: var(--header-h) 0 auto; flex-direction: column; align-items: flex-start; gap: 1.2rem; padding: 1.5rem var(--gutter); background: #fff; box-shadow: 0 12px 24px rgb(10 37 89 / .12); transform: translateY(-8px); opacity: 0; visibility: hidden; transition: all .3s var(--ease); }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav__list { flex-direction: column; gap: 1rem; font-size: 1rem; }
  .cards--2 { grid-template-columns: 1fr; }
  .card--plain:nth-child(odd) { border-right: 0; }
  .card--plain:nth-last-child(2) { border-bottom: 1px solid var(--c-line); }
  .cards--4 .card:nth-child(odd) { border-left: 0; }
  .hero { align-items: flex-start; min-height: 580px; }
  .hero__content { padding-top: 2.5rem; padding-bottom: 5rem; }
}