/* ============================================================
   F5C CONSULTING — landing page
   Brand: teal/petrol #007186 · warm grey #6c605e
   Visual direction: moderno
   ============================================================ */

:root{
  --teal:#007186;
  --teal-bright:#1fa6bf;
  --grey:#6c605e;
  --maxw:1280px;
  --pad:clamp(20px,5vw,72px);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-display:'Archivo',system-ui,sans-serif;
  --font-body:'Hanken Grotesk',system-ui,sans-serif;
}

/* ---------- PALETTE (moderno) ---------- */
body{
  --bg:#f0eee9;
  --bg-alt:#ffffff;
  --bg-deep:#0c1c22;
  --ink:#1a2226;
  --ink-soft:#5c554f;
  --line:#e1ddd4;
  --accent:#007186;
  --accent-soft:#e6efef;
  --accent-ink:#ffffff;
  --on-deep:#eef4f4;
  --on-deep-soft:#9fb4b7;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--ink);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  transition:background .5s var(--ease), color .5s var(--ease);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
::selection{background:var(--accent);color:var(--accent-ink)}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.eyebrow{
  font-family:var(--font-display);
  font-weight:700;font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--accent);display:flex;align-items:center;gap:.7em;
}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--accent)}

/* ============================================================
   LOGO LOCKUP
   ============================================================ */
.logo{display:inline-flex;align-items:center;line-height:0;user-select:none}
.logo__img{display:block;width:auto;height:30px}
.logo__img--white{display:none}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--pad);
  transition:background .4s var(--ease),box-shadow .4s var(--ease),padding .4s var(--ease);
}
.nav--solid{
  background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:blur(14px);
  box-shadow:0 1px 0 var(--line);
  padding-block:12px;
}
/* transparent over the hero image */
.nav:not(.nav--solid) .nav__link{color:#fff}
.nav:not(.nav--solid) .nav__link::after{background:var(--teal-bright)}
.nav:not(.nav--solid) .nav__link:hover{color:var(--teal-bright)}
.nav:not(.nav--solid) .logo__img--color{display:none}
.nav:not(.nav--solid) .logo__img--white{display:block}
.nav:not(.nav--solid) .lang{border-color:rgba(255,255,255,.45)}
.nav:not(.nav--solid) .lang__slider{background:var(--teal-bright)}
.nav:not(.nav--solid) .lang button{color:rgba(255,255,255,.85)}
.nav:not(.nav--solid) .lang button.is-on{color:#04161b}
.nav:not(.nav--solid) .burger span{background:#fff}
.nav__links.open .nav__link{color:var(--ink)}
.nav .logo__img{height:30px}
.nav__links{display:flex;align-items:center;gap:clamp(14px,2vw,34px)}
.nav__link{
  font-family:var(--font-display);font-weight:600;font-size:.86rem;letter-spacing:.02em;
  color:var(--ink);position:relative;padding:4px 0;transition:color .25s;
}
.nav__link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:width .3s var(--ease)}
.nav__link:hover{color:var(--accent)}
.nav__link:hover::after{width:100%}
.nav__right{display:flex;align-items:center;gap:18px}

.lang{position:relative;display:inline-flex;align-items:center;padding:3px;border:1px solid var(--line);border-radius:99px;font-family:var(--font-display);font-weight:700;font-size:.74rem;background:transparent}
.lang__slider{position:absolute;top:3px;bottom:3px;left:3px;width:calc(50% - 3px);border-radius:99px;background:var(--accent);transition:transform .38s var(--ease);z-index:0}
.lang[data-active="en"] .lang__slider{transform:translateX(100%)}
.lang button{position:relative;z-index:1;flex:1;min-width:36px;text-align:center;padding:5px 12px;color:var(--ink-soft);transition:color .3s var(--ease);letter-spacing:.08em;background:transparent}
.lang button.is-on{color:var(--accent-ink)}

.btn{
  position:relative;isolation:isolate;
  font-family:var(--font-display);font-weight:700;font-size:.88rem;letter-spacing:.015em;
  padding:13px 22px;border-radius:99px;
  display:inline-flex;align-items:center;gap:.6em;white-space:nowrap;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),color .35s var(--ease),border-color .35s var(--ease);
}
.btn::after{content:none}
.btn__ico{display:inline-flex;align-items:center;justify-content:center;line-height:1;font-size:1em;transition:transform .4s var(--ease)}
.btn__ico svg{width:1.18em;height:1.18em;display:block}
.btn:active{transform:translateY(0) scale(.985)}

/* PRIMARY — solid with circular arrow badge */
.btn--primary{background:var(--accent);color:var(--accent-ink)}
.btn--primary .btn__ico{
  width:1.75em;height:1.75em;border-radius:50%;
  background:var(--accent-ink);color:var(--accent);font-size:.84em;font-weight:700;
  transition:transform .4s var(--ease),background .4s var(--ease),color .4s var(--ease);
}
.btn--primary:hover{transform:translateY(-3px);box-shadow:0 18px 38px -16px var(--accent)}
.btn--primary:hover .btn__ico{transform:translateX(3px)}

/* GHOST — outline with left-to-right fill sweep */
.btn--ghost{border:1.5px solid var(--ink);color:var(--ink);overflow:hidden}
.btn--ghost::before{
  content:"";position:absolute;inset:0;z-index:-1;background:var(--ink);
  transform:scaleX(0);transform-origin:left center;transition:transform .45s var(--ease);
}
.btn--ghost:hover{color:var(--bg);border-color:var(--ink);transform:translateY(-3px)}
.btn--ghost:hover::before{transform:scaleX(1)}
.btn--ghost:hover .btn__ico{transform:translateX(4px)}

/* ON-DEEP — light outline, fill sweep */
.btn--on-deep{border:1.5px solid var(--on-deep);color:var(--on-deep);overflow:hidden}
.btn--on-deep::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--on-deep);transform:scaleX(0);transform-origin:left center;transition:transform .45s var(--ease)}
.btn--on-deep:hover{color:var(--bg-deep);transform:translateY(-3px)}
.btn--on-deep:hover::before{transform:scaleX(1)}
.btn--on-deep:hover .btn__ico{transform:translateX(4px)}
.nav__cta{display:inline-flex}

.burger{display:none;flex-direction:column;gap:5px;padding:6px}
.burger span{width:24px;height:2px;background:var(--ink);transition:.3s}

/* ============================================================
   HERO — full-bleed background image
   ============================================================ */
.hero{
  position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;
  overflow:hidden;isolation:isolate;color:#fff;
}
.hero__bg{position:absolute;inset:0;z-index:-2}
.hero__bg img,.hero__bg video{width:100%;height:100%;object-fit:cover;object-position:center 32%}
@media (prefers-reduced-motion:no-preference){
  .hero__bg img{animation:heroZoom 22s cubic-bezier(.22,.61,.36,1) forwards}
}
@keyframes heroZoom{from{transform:scale(1.1)}to{transform:scale(1)}}
.hero__veil{
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg, rgba(4,14,18,.30) 0%, rgba(4,14,18,.05) 28%, rgba(4,14,18,.92) 100%),
    linear-gradient(102deg, rgba(4,14,18,.90) 0%, rgba(4,14,18,.45) 42%, color-mix(in srgb,var(--teal) 34%,transparent) 100%);
}
.hero__inner{width:100%;padding-top:150px;padding-bottom:30px}
.hero .eyebrow{color:var(--teal-bright)}
.hero .eyebrow::before{background:var(--teal-bright)}
.hero__title{
  font-family:var(--font-display);font-weight:800;letter-spacing:-.03em;line-height:1.0;
  font-size:clamp(2.7rem,6.6vw,5.6rem);color:#fff;max-width:17ch;text-wrap:balance;
  text-shadow:0 2px 40px rgba(0,0,0,.25);
}
.hero__lead{
  margin-top:26px;font-size:clamp(1.08rem,1.5vw,1.32rem);color:rgba(255,255,255,.84);
  max-width:48ch;text-wrap:pretty;
}
.hero__actions{margin-top:38px;display:flex;flex-wrap:wrap;gap:14px}
.hero__actions .btn--ghost{border-color:rgba(255,255,255,.7);color:#fff}
.hero__actions .btn--ghost::before{background:#fff}
.hero__actions .btn--ghost:hover{color:#0c1c22;border-color:#fff}
.hero__stats{
  display:flex;width:100%;margin-top:clamp(40px,6vw,72px);
  border-top:1px solid rgba(255,255,255,.22);padding-top:24px;
}
.hero__stat{flex:1;padding-right:22px}
.hero__stat+.hero__stat{padding-left:clamp(18px,3vw,34px)}
.hero__stat .n{font-family:var(--font-display);font-weight:800;font-size:clamp(1.7rem,3vw,2.7rem);color:#fff;line-height:1}
.hero__stat .l{font-size:.84rem;color:rgba(255,255,255,.72);letter-spacing:.04em;margin-top:7px;text-wrap:balance}
.hero__credit{
  position:absolute;right:var(--pad);bottom:16px;z-index:1;
  font-family:'Hanken Grotesk',monospace;font-size:.64rem;letter-spacing:.08em;text-transform:uppercase;
  color:rgba(255,255,255,.78);background:rgba(8,23,28,.45);backdrop-filter:blur(6px);
  padding:5px 10px;border-radius:5px;border:1px solid rgba(255,255,255,.18);
}

/* placeholder image block */
.ph{
  position:relative;border:1px solid var(--line);border-radius:6px;overflow:hidden;
  background:
    repeating-linear-gradient(135deg,var(--bg-alt) 0 12px,transparent 12px 24px),
    var(--bg-alt);
  display:flex;align-items:center;justify-content:center;
}
.ph__tag{
  font-family:'Hanken Grotesk',monospace;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink-soft);background:var(--bg);padding:5px 10px;border:1px solid var(--line);border-radius:4px;
}

/* real imagery */
.figure{
  position:relative;border-radius:8px;overflow:hidden;border:1px solid var(--line);
  background:
    repeating-linear-gradient(135deg,var(--bg-alt) 0 12px,transparent 12px 24px),
    var(--bg-alt);
  box-shadow:0 30px 60px -36px rgba(8,23,28,.5);
}
.figure img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(1.02) contrast(1.02)}
.figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(155deg,transparent 45%,color-mix(in srgb,var(--accent) 30%,transparent));
  mix-blend-mode:multiply;opacity:.55;
}
.figure--portrait{aspect-ratio:4/5}
.figure--wide{aspect-ratio:5/4}
.figure__badge{
  position:absolute;left:16px;bottom:16px;z-index:2;
  font-family:'Hanken Grotesk',monospace;font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;
  color:#fff;background:rgba(8,23,28,.6);backdrop-filter:blur(6px);
  padding:6px 11px;border-radius:5px;border:1px solid rgba(255,255,255,.18);
}
.hero__media .ph{aspect-ratio:4/5}

/* ============================================================
   SECTION SHELL
   ============================================================ */
.section{padding-block:clamp(72px,10vw,140px)}
.section--alt{background:var(--bg-alt)}
.section__head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap;margin-bottom:54px}
.section__title{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1.05;font-size:clamp(2rem,4vw,3.2rem);color:var(--ink);max-width:18ch;text-wrap:balance}
.section__intro{max-width:42ch;color:var(--ink-soft);font-size:1.08rem;text-wrap:pretty}

/* ============================================================
   SERVICES
   ============================================================ */
.services{list-style:none}
.service{
  position:relative;display:grid;grid-template-columns:64px 1fr auto;gap:28px;align-items:center;
  padding:30px 8px;border-top:1px solid var(--line);cursor:default;
  transition:padding .35s var(--ease),background .35s var(--ease);
}
.services .service:last-child{border-bottom:1px solid var(--line)}
.service__num{font-family:var(--font-display);font-weight:700;font-size:.95rem;color:var(--accent);letter-spacing:.04em}
.service__title{font-family:var(--font-display);font-weight:700;font-size:clamp(1.3rem,2.4vw,1.9rem);letter-spacing:-.01em;color:var(--ink);transition:color .3s}
.service__desc{margin-top:7px;color:var(--ink-soft);max-width:62ch;font-size:1rem;text-wrap:pretty}
.service__arrow{font-size:1.5rem;color:var(--accent);opacity:0;transform:translateX(-8px);transition:.35s var(--ease)}
.service__arrow svg{width:24px;height:24px;display:block}
.service:hover{background:var(--accent-soft);padding-left:24px;padding-right:18px;border-radius:8px}
.service:hover .service__title{color:var(--accent)}
.service:hover .service__arrow{opacity:1;transform:translateX(0)}

/* MODERNO — editorial hairline matrix */
body[data-theme="moderno"] .services{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
}
body[data-theme="moderno"] .service{
  position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:0;
  background:var(--bg-alt);border:none;border-radius:0;
  padding:38px 34px;min-height:230px;
  transition:background .4s var(--ease);
}
body[data-theme="moderno"] .service__num{
  order:-1;font-family:var(--font-display);font-weight:700;font-size:.78rem;letter-spacing:.18em;
  color:var(--ink-soft);position:relative;padding-bottom:16px;
}
body[data-theme="moderno"] .service__num::after{
  content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;
  background:var(--accent);transition:width .45s var(--ease);
}
body[data-theme="moderno"] .service__title{margin-top:24px;font-size:1.36rem;transition:color .3s var(--ease)}
body[data-theme="moderno"] .service__desc{margin-top:12px;font-size:.97rem;max-width:40ch}
body[data-theme="moderno"] .service__arrow{display:none}
body[data-theme="moderno"] .service:hover{background:color-mix(in srgb,var(--accent) 5%,var(--bg-alt))}
body[data-theme="moderno"] .service:hover .service__num{color:var(--ink)}
body[data-theme="moderno"] .service:hover .service__num::after{width:48px}
body[data-theme="moderno"] .service:hover .service__title{color:var(--accent)}

/* ============================================================
   IMAGE BANNER
   ============================================================ */
.banner{position:relative;height:clamp(360px,52vh,540px);overflow:hidden;display:flex;align-items:center}
.banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(1.02)}
.banner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,18,22,.82),rgba(6,18,22,.42) 55%,color-mix(in srgb,var(--teal) 38%,rgba(6,18,22,.3)))}
.banner__inner{position:relative;z-index:2;width:100%}
.banner__eyebrow{font-family:var(--font-display);font-weight:700;font-size:.74rem;letter-spacing:.22em;text-transform:uppercase;color:var(--teal-bright);display:flex;align-items:center;gap:.7em}
.banner__eyebrow::before{content:"";width:34px;height:2px;background:var(--teal-bright)}
.banner__title{margin-top:18px;font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;line-height:1.04;font-size:clamp(1.9rem,4vw,3.4rem);color:#fff;max-width:20ch;text-wrap:balance}
.banner__badge{position:absolute;left:var(--pad);bottom:18px;z-index:2;font-family:'Hanken Grotesk',monospace;font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:rgba(8,23,28,.5);backdrop-filter:blur(6px);padding:6px 11px;border-radius:5px;border:1px solid rgba(255,255,255,.18)}

/* ============================================================
   IMAGE BANNER end
   ============================================================ */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,5vw,80px);align-items:center}
.about__media .ph{aspect-ratio:5/4}
.about__lead{font-family:var(--font-display);font-weight:700;font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.25;letter-spacing:-.01em;color:var(--ink);text-wrap:balance}
.about__text{margin-top:22px;color:var(--ink-soft);font-size:1.08rem;text-wrap:pretty}
.about__text p+p{margin-top:16px}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:46px;border-top:1px solid var(--line);padding-top:32px}
.pillar h4{font-family:var(--font-display);font-weight:800;font-size:1.6rem;color:var(--accent)}
.pillar p{margin-top:6px;font-size:.92rem;color:var(--ink-soft)}

/* ============================================================
   CONTACT
   ============================================================ */
.contact{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(34px,5vw,72px)}
.contact__aside .section__title{font-size:clamp(1.8rem,3.4vw,2.8rem)}
.contact__list{margin-top:34px;display:flex;flex-direction:column;gap:22px}
.contact__item .k{font-family:var(--font-display);font-weight:700;font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.contact__item .v{margin-top:5px;font-size:1.08rem;color:var(--ink)}
.socials{display:flex;gap:12px;margin-top:34px}
.socials a{width:40px;height:40px;border:1px solid var(--line);border-radius:99px;display:grid;place-items:center;color:var(--ink);transition:.25s}
.socials a:hover{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}

.form{background:var(--bg-alt);border:1px solid var(--line);border-radius:18px;padding:clamp(26px,3vw,44px);box-shadow:0 40px 80px -52px rgba(8,23,28,.5)}
.field{margin-bottom:24px}
.field--row{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.field label{display:block;font-family:var(--font-display);font-weight:600;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:9px;transition:color .3s var(--ease)}
.field:focus-within label{color:var(--accent)}
.field input,.field textarea,.field select{
  width:100%;font-family:var(--font-body);font-size:1.02rem;color:var(--ink);background:transparent;
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-soft);opacity:.62}
/* underline inputs with growing accent */
.field input,.field select{
  border:none;border-bottom:1.5px solid var(--line);border-radius:0;padding:11px 2px;
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;background-position:0 100%;background-size:0% 2px;
  transition:background-size .42s var(--ease),border-color .3s var(--ease);
}
.field input:focus,.field select:focus{outline:none;background-size:100% 2px}
/* custom select chevron */
.field select{appearance:none;-webkit-appearance:none;padding-right:26px;cursor:pointer}
.field:has(select){position:relative}
.field:has(select)::after{
  content:"";position:absolute;right:5px;bottom:16px;width:9px;height:9px;pointer-events:none;
  border-right:2px solid var(--ink-soft);border-bottom:2px solid var(--ink-soft);transform:rotate(45deg);
}
/* textarea as bordered box */
.field textarea{
  border:1.5px solid var(--line);border-radius:12px;padding:14px 15px;min-height:132px;resize:vertical;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.field.invalid input,.field.invalid select{border-bottom-color:#d4574e;background-image:linear-gradient(#d4574e,#d4574e);background-size:100% 2px}
.field.invalid textarea{border-color:#d4574e;box-shadow:0 0 0 3px rgba(212,87,78,.14)}
.field__err{display:none;color:#d4574e;font-size:.8rem;margin-top:7px}
.field.invalid .field__err{display:block}
.form__submit{width:100%;justify-content:center;margin-top:10px}
.form__ok{display:none;text-align:center;padding:14px;border-radius:10px;background:var(--accent-soft);color:var(--accent);font-weight:600;margin-top:16px}
.form__ok.show{display:block}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:var(--bg-deep);color:var(--on-deep);padding-block:64px 30px}
.footer__top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:46px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer .logo__img{height:36px}
.footer .logo__img--color{display:none}
.footer .logo__img--white{display:block}
.footer__blurb{margin-top:18px;color:var(--on-deep-soft);max-width:38ch;font-size:.98rem}
.footer__col h5{font-family:var(--font-display);font-weight:700;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--on-deep-soft);margin-bottom:16px}
.footer__col a{display:block;color:var(--on-deep);padding:5px 0;font-size:.96rem;opacity:.9;transition:.2s}
.footer__col a:hover{opacity:1;color:var(--accent);transform:translateX(3px)}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;padding-top:24px;color:var(--on-deep-soft);font-size:.85rem}

/* ============================================================
   REVEAL
   ============================================================ */
.reveal{transition:opacity .7s var(--ease),transform .7s var(--ease)}
html.reveal-on .reveal{opacity:0;transform:translateY(26px)}
html.reveal-on .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html.reveal-on .reveal{opacity:1;transform:none;transition:none}}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:980px){
  .about,.contact{grid-template-columns:1fr}
  body[data-theme="moderno"] .services{grid-template-columns:repeat(2,1fr)}
  .footer__top{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .hero__stats{flex-wrap:wrap;gap:18px 0}
  .hero__stat{flex:0 0 50%;padding:0 14px;margin-top:14px}
  .hero__stat+.hero__stat{border-left:none}
  .hero__stat:nth-child(odd){padding-left:0}
}
@media (max-width:760px){
  .nav__links{
    position:fixed;inset:0 0 0 auto;width:min(82vw,340px);background:var(--bg);
    flex-direction:column;align-items:flex-start;justify-content:center;gap:26px;padding:40px;
    transform:translateX(100%);transition:transform .4s var(--ease);box-shadow:-20px 0 60px -30px rgba(0,0,0,.5);
  }
  .nav__links.open{transform:none}
  .burger{display:flex}
  .nav__cta{display:none}
  .service{grid-template-columns:44px 1fr;gap:16px}
  .service__arrow{display:none}
  body[data-theme="moderno"] .services{grid-template-columns:1fr}
  .pillars{grid-template-columns:1fr;gap:14px}
  .field--row{grid-template-columns:1fr}
  .footer__top{grid-template-columns:1fr}
}