/* ============================================================
   ΑΤΛΑΣ Δομική — Design System (DEMO)
   Warm minimalism + activated terracotta accent
   Instrument Serif (display) + Inter (UI/body)
   ============================================================ */

:root{
  --paper:    #F7F3EE;   /* warm off-white background */
  --stone:    #7A716A;   /* warm taupe (primary text-secondary) */
  --char:     #1C1916;   /* near-black */
  --cream:    #FCF3D0;   /* pale cream highlight */
  --terra:    #9b2c2c;   /* terracotta accent (activated) */
  --terra-dk: #7c2222;
  --input:    #EFE9E1;   /* warm gray input bg */
  --line:     rgba(28,25,22,.12);

  --serif: "Instrument Serif", Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --maxw: 1180px;
  --pad: clamp(20px, 5vw, 64px);
  --radius: 16px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- skip-to-content ---------- */
.skip-link{
  position:fixed; top:-120px; left:20px; z-index:9999;
  background:var(--terra); color:var(--paper);
  padding:12px 22px; border-radius:0 0 var(--radius) var(--radius);
  font-weight:700; font-size:15px; transition:top .2s var(--ease);
  text-decoration:none;
}
.skip-link:focus{ top:0; outline:none; }

/* ---------- focus-visible ring ---------- */
:focus{ outline:none; }
:focus-visible{
  outline:2.5px solid var(--terra);
  outline-offset:3px;
  border-radius:4px;
}
.btn:focus-visible{ outline-offset:4px; }
.nav__logo-mark:focus-visible{ outline-offset:2px; border-radius:10px; }

/* ---------- reset ---------- */
*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
@media (prefers-reduced-motion:reduce){ html{ scroll-behavior:auto; } }

body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--char);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
em{ font-style:italic; }

/* ---------- layout helpers ---------- */
.section{ padding:clamp(72px,11vw,140px) var(--pad); }
.section__head{ max-width:760px; margin:0 auto clamp(40px,6vw,72px); text-align:center; }
.section__eyebrow{
  font-size:13px; font-weight:600; letter-spacing:.18em; text-transform:uppercase;
  color:var(--terra); margin-bottom:18px;
}
.section__title{
  font-family:var(--serif); font-weight:400;
  font-size:clamp(38px,6vw,68px); line-height:1.04; letter-spacing:-.01em;
}
.section__title em{ color:var(--terra); }
.section__lead{
  margin-top:22px; color:var(--stone); font-size:clamp(17px,2vw,20px);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--sans); font-weight:600; font-size:16px;
  padding:15px 30px; border-radius:999px; cursor:pointer; border:1.5px solid transparent;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, color .25s;
  will-change:transform;
}
.btn--solid{ background:var(--terra); color:var(--paper); box-shadow:0 6px 20px rgba(155,44,44,.28); }
.btn--solid:hover{ background:var(--terra-dk); transform:translateY(-2px); box-shadow:0 12px 30px rgba(155,44,44,.36); }
.btn--ghost{ border-color:var(--char); color:var(--char); }
.btn--ghost:hover{ background:var(--char); color:var(--paper); transform:translateY(-2px); }
.btn--sm{ padding:11px 22px; font-size:15px; }
.btn--full{ width:100%; }

/* ============================================================
   LOADER
   ============================================================ */
.loader{
  position:fixed; inset:0; z-index:200; background:var(--paper);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:18px;
  transition:opacity .5s var(--ease), visibility .5s;
}
.loader.is-hidden{ opacity:0; visibility:hidden; pointer-events:none; }
.loader__label{ font-size:13px; font-weight:600; letter-spacing:.18em; text-transform:uppercase; color:var(--stone); }
.loader__bar{ width:200px; height:3px; background:var(--input); border-radius:2px; overflow:hidden; }
.loader__fill{ height:100%; width:0%; background:var(--terra); border-radius:2px; transition:width .1s linear; }

/* ============================================================
   HERO SCROLL ANIMATION
   ============================================================ */
.hero-scroll{
  /* tall container — scroll distance = animation duration */
  height:450vh;
  position:relative;
}
.hero-scroll__sticky{
  position:sticky; top:0; width:100%; height:100svh;
  overflow:hidden; background:var(--paper);
}
.hero-scroll__canvas{
  position:absolute; inset:0; width:100%; height:100%;
  display:block;
}

/* copy overlay — lives above the canvas */
.hero-scroll__copy{
  position:absolute; inset:0;
  display:flex; align-items:center;
  pointer-events:none;
  transition:opacity .1s;
}
.hero-scroll__inner{
  position:relative; z-index:1;
  padding:0 var(--pad);
  max-width:var(--maxw); margin:0 auto; width:100%;
  padding-top:100px; /* clear nav */
  pointer-events:auto;
}
/* re-use existing hero typography tokens */
.hero-scroll__inner .hero__eyebrow{ color:var(--terra); }
.hero-scroll__inner .hero__title{ text-shadow:0 2px 20px rgba(247,243,238,.6); }
.hero-scroll__inner .hero__sub{ text-shadow:0 1px 8px rgba(247,243,238,.5); }

/* annotation cards */
.anno{
  position:absolute; left:var(--pad); bottom:18%; z-index:10;
  background:rgba(247,243,238,.94); backdrop-filter:blur(12px);
  border:1px solid var(--line); border-left:4px solid var(--terra);
  border-radius:var(--radius); padding:18px 22px;
  max-width:280px;
  opacity:0; transform:translateY(14px) scale(.97);
  transition:opacity .35s var(--ease), transform .35s var(--ease);
  pointer-events:none;
}
.anno.is-visible{ opacity:1; transform:none; pointer-events:auto; }
.anno--right{ left:auto; right:var(--pad); border-left:1px solid var(--line); border-right:4px solid var(--terra); }
.anno__num{ font-family:var(--serif); font-size:28px; color:var(--terra); opacity:.5; line-height:1; display:block; }
.anno__title{ font-weight:700; font-size:16px; margin:8px 0 4px; }
.anno__desc{ font-size:14px; color:var(--stone); }

/* scroll hint */
.hero-scroll__sticky .hero__scroll{
  position:absolute; bottom:28px; left:50%; transform:translateX(-50%);
  z-index:10; transition:opacity .3s;
}

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:100;
  transition:padding .3s var(--ease);
  padding:18px var(--pad);
}
.nav__inner{
  max-width:var(--maxw); margin:0 auto;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
  background:rgba(247,243,238,.72); backdrop-filter:blur(14px);
  border:1px solid var(--line); border-radius:999px;
  padding:10px 12px 10px 22px;
  transition:box-shadow .3s var(--ease), background .3s;
}
.nav.is-scrolled .nav__inner{ box-shadow:0 8px 30px rgba(28,25,22,.10); background:rgba(247,243,238,.92); }

.nav__logo{ display:flex; align-items:center; gap:10px; }
.nav__logo-mark{
  width:38px; height:38px; flex:0 0 auto; border-radius:10px;
  background:var(--terra); color:var(--paper);
  font-family:var(--serif); font-size:26px; line-height:38px; text-align:center;
}
.nav__logo-text{ font-weight:800; letter-spacing:.04em; font-size:18px; line-height:1; }
.nav__logo-text small{ display:block; font-weight:500; font-size:11px; letter-spacing:.18em; color:var(--stone); margin-top:2px; }

.nav__links{ display:flex; gap:28px; }
.nav__links a{ font-weight:500; font-size:15px; color:var(--char); position:relative; }
.nav__links a::after{
  content:""; position:absolute; left:0; bottom:-5px; width:0; height:2px;
  background:var(--terra); transition:width .25s var(--ease);
}
.nav__links a:hover::after{ width:100%; }

.nav__actions{ display:flex; align-items:center; gap:16px; }
.nav__phone{ font-weight:700; font-size:15px; color:var(--char); }
.nav__phone:hover{ color:var(--terra); }

.nav__burger{ display:none; flex-direction:column; gap:5px; background:none; border:0; cursor:pointer; padding:8px; }
.nav__burger span{ width:24px; height:2px; background:var(--char); transition:.3s var(--ease); }
.nav.is-open .nav__burger span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2){ opacity:0; }
.nav.is-open .nav__burger span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.nav__mobile{
  display:none; flex-direction:column; gap:4px;
  max-width:var(--maxw); margin:8px auto 0;
  background:rgba(247,243,238,.97); backdrop-filter:blur(14px);
  border:1px solid var(--line); border-radius:20px; padding:14px;
  max-height:0; overflow:hidden; opacity:0;
  transition:max-height .35s var(--ease), opacity .25s, padding .35s var(--ease);
}
.nav.is-open .nav__mobile{ max-height:380px; opacity:1; padding:14px; }
.nav__mobile a{ padding:13px 14px; font-weight:600; border-radius:12px; }
.nav__mobile a:hover{ background:var(--input); }
.nav__mobile-phone{ color:var(--terra)!important; }

/* ============================================================
   HERO — shared typography tokens (used inside .hero-scroll__inner)
   ============================================================ */
.hero__eyebrow{
  font-size:14px; font-weight:600; letter-spacing:.18em; text-transform:uppercase;
  color:var(--terra); margin-bottom:24px;
}
.hero__title{
  font-family:var(--serif); font-weight:400;
  font-size:clamp(48px,9vw,108px); line-height:.98; letter-spacing:-.015em;
  max-width:14ch;
}
.hero__title em{ color:var(--terra); }
.hero__sub{
  margin-top:30px; max-width:54ch; font-size:clamp(17px,2.2vw,21px); color:var(--stone);
}
.hero__cta{ display:flex; flex-wrap:wrap; gap:14px; margin-top:38px; }
.hero__phone{
  display:inline-flex; align-items:baseline; gap:10px; margin-top:30px;
  font-weight:800; font-size:clamp(20px,3vw,26px);
}
.hero__phone span{ font-size:13px; font-weight:600; letter-spacing:.14em; text-transform:uppercase; color:var(--stone); }
.hero__phone:hover{ color:var(--terra); }

.hero__scroll{
  font-size:11px; letter-spacing:.22em; text-transform:uppercase; color:var(--stone);
  display:flex; flex-direction:column; align-items:center; gap:10px;
}
.hero__scroll span{ width:1px; height:42px; background:var(--stone); animation:scrolldot 2s var(--ease) infinite; transform-origin:top center; }
@keyframes scrolldot{ 0%{transform:scaleY(0); opacity:.3;} 40%{transform:scaleY(1); opacity:1;} 100%{transform:scaleY(0); opacity:.3;} }

/* ============================================================
   PARTNERS
   ============================================================ */
.partners{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding:38px var(--pad); background:#fffefa; }
.partners__track{ max-width:var(--maxw); margin:0 auto; display:flex; align-items:center; gap:38px; flex-wrap:wrap; justify-content:center; }
.partners__label{ font-size:12px; letter-spacing:.16em; text-transform:uppercase; color:var(--stone); font-weight:600; }
.partners__logos{ display:flex; gap:clamp(22px,4vw,52px); flex-wrap:wrap; justify-content:center; }
.partners__logos li{ font-family:var(--serif); font-size:clamp(20px,3vw,28px); color:var(--char); opacity:.45; transition:opacity .25s; }
.partners__logos li:hover{ opacity:1; }

/* ============================================================
   PRODUCTS
   ============================================================ */
.products__grid{
  max-width:var(--maxw); margin:0 auto;
  display:grid; grid-template-columns:repeat(4,1fr); gap:18px;
}
.pcard{
  position:relative; background:#fffefa; border:1px solid var(--line);
  border-left:4px solid var(--terra); border-radius:var(--radius);
  padding:30px 26px 26px; transition:transform .3s var(--ease), box-shadow .3s var(--ease);
  will-change:transform;
}
.pcard:hover{ transform:translateY(-6px); box-shadow:0 18px 40px rgba(28,25,22,.10); }
.pcard__num{ font-family:var(--serif); font-size:34px; color:var(--terra); opacity:.4; line-height:1; }
.pcard h3{ font-size:20px; font-weight:700; margin:14px 0 8px; }
.pcard p{ font-size:15px; color:var(--stone); }
.pcard__count{ display:inline-block; margin-top:18px; font-size:13px; font-weight:600; letter-spacing:.04em; color:var(--terra); }
.pcard--accent{ background:var(--char); border-left-color:var(--cream); color:var(--paper); }
.pcard--accent .pcard__num{ color:var(--cream); opacity:.7; }
.pcard--accent p{ color:rgba(247,243,238,.7); }
.pcard--accent .pcard__count{ color:var(--cream); }

.products__cta{
  max-width:var(--maxw); margin:clamp(36px,5vw,56px) auto 0;
  display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:18px;
  text-align:center;
}
.products__cta p{ font-family:var(--serif); font-size:clamp(20px,3vw,26px); color:var(--char); }

/* ============================================================
   DARK / CREAM SECTION VARIANTS
   ============================================================ */
.section--dark{ background:var(--char); color:var(--paper); }
.section--dark .section__lead{ color:rgba(247,243,238,.72); }
.section--dark .section__eyebrow{ color:var(--cream); }
.section--dark .section__title em{ color:var(--cream); }
.section--cream{ background:var(--cream); }

/* ---------- delivery ---------- */
.delivery__grid{
  max-width:var(--maxw); margin:0 auto;
  display:grid; grid-template-columns:1.1fr .9fr; gap:clamp(40px,7vw,90px); align-items:center;
}
.delivery__list{ margin:32px 0; display:grid; gap:14px; }
.delivery__list li{ position:relative; padding-left:30px; font-size:17px; }
.delivery__list li::before{
  content:""; position:absolute; left:0; top:8px; width:16px; height:16px;
  border-radius:50%; border:2px solid var(--cream);
  background:radial-gradient(circle, var(--cream) 40%, transparent 42%);
}
.delivery__stats{ display:grid; grid-template-columns:1fr 1fr; gap:2px; background:var(--line); border-radius:var(--radius); overflow:hidden; }
.stat{ background:var(--char); padding:34px 26px; }
.stat__num{ display:block; font-family:var(--serif); font-size:clamp(46px,7vw,72px); line-height:1; color:var(--cream); }
.stat__label{ display:block; margin-top:10px; font-size:14px; color:rgba(247,243,238,.65); }

/* ============================================================
   SOCIAL PROOF
   ============================================================ */
.proof__grid{ max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.quote{ background:#fffefa; border:1px solid var(--line); border-radius:var(--radius); padding:34px 30px; }
.quote blockquote{ font-family:var(--serif); font-size:23px; line-height:1.3; }
.quote figcaption{ margin-top:22px; font-size:14px; color:var(--stone); }
.quote figcaption strong{ display:block; color:var(--char); font-size:15px; }
.proof__rating{ max-width:var(--maxw); margin:42px auto 0; text-align:center; font-weight:600; color:var(--stone); }
.proof__stars{ display:block; color:var(--terra); font-size:24px; letter-spacing:.1em; margin-bottom:8px; }

/* ============================================================
   PROCESS
   ============================================================ */
.process__steps{
  max-width:var(--maxw); margin:0 auto;
  display:flex; align-items:flex-start; gap:8px; justify-content:center; flex-wrap:nowrap;
}
.step{ flex:1; text-align:center; max-width:240px; }
.step__num{
  width:60px; height:60px; margin:0 auto 18px; border-radius:50%;
  background:var(--terra); color:var(--paper);
  font-family:var(--serif); font-size:30px; line-height:60px; display:block;
}
.step h3{ font-size:19px; margin-bottom:8px; }
.step p{ font-size:15px; color:var(--stone); }
.step__line{ flex:0 0 40px; height:2px; margin-top:30px; background:repeating-linear-gradient(90deg,var(--stone) 0 6px,transparent 6px 12px); opacity:.5; }

/* ============================================================
   ABOUT
   ============================================================ */
.about__grid{ max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:1fr 1fr; gap:clamp(40px,7vw,90px); align-items:center; }
.about__sig{ margin-top:26px; font-family:var(--serif); font-size:24px; color:var(--cream); }
.timeline{ display:grid; gap:0; }
.timeline li{ position:relative; padding:20px 0 20px 40px; border-bottom:1px solid rgba(247,243,238,.14); font-size:16px; color:rgba(247,243,238,.8); }
.timeline li:last-child{ border-bottom:0; }
.timeline li::before{ content:""; position:absolute; left:6px; top:26px; width:10px; height:10px; border-radius:50%; background:var(--cream); }
.timeline li span{ display:inline-block; min-width:64px; font-family:var(--serif); font-size:22px; color:var(--cream); margin-right:6px; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact__grid{ max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:1fr 1fr; gap:clamp(40px,7vw,80px); }
.contact__details{ margin-top:30px; display:grid; gap:16px; }
.contact__details li{ display:grid; grid-template-columns:120px 1fr; gap:14px; padding-bottom:14px; border-bottom:1px solid var(--line); font-size:16px; }
.contact__details strong{ color:var(--stone); font-weight:600; font-size:14px; letter-spacing:.04em; text-transform:uppercase; }
.contact__details a:hover{ color:var(--terra); }

.contact__form{ background:#fffefa; border:1px solid var(--line); border-radius:var(--radius); padding:clamp(26px,4vw,40px); }
.field{ margin-bottom:18px; }
.field--row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field label{ display:block; font-size:13px; font-weight:600; letter-spacing:.04em; text-transform:uppercase; color:var(--stone); margin-bottom:8px; }
.field input,.field select,.field textarea{
  width:100%; font-family:var(--sans); font-size:16px; color:var(--char);
  background:var(--input); border:1.5px solid transparent; border-radius:10px; padding:13px 15px;
  transition:border-color .2s, background .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{ outline:none; border-color:var(--terra); background:#fff; }
.field input:focus-visible,.field select:focus-visible,.field textarea:focus-visible{
  outline:2.5px solid var(--terra); outline-offset:2px;
}
.field textarea{ resize:vertical; }
.contact__note{ margin-top:14px; text-align:center; font-size:13px; color:var(--stone); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer{ background:var(--char); color:var(--paper); padding:60px var(--pad) 40px; }
.footer__inner{ max-width:var(--maxw); margin:0 auto; display:flex; flex-wrap:wrap; gap:30px; align-items:center; justify-content:space-between; }
.footer__brand{ display:flex; align-items:center; gap:14px; }
.footer__brand strong{ font-size:18px; letter-spacing:.04em; }
.footer__brand p{ font-size:14px; color:rgba(247,243,238,.6); }
.footer__nav{ display:flex; gap:24px; }
.footer__nav a{ font-size:15px; color:rgba(247,243,238,.8); }
.footer__nav a:hover{ color:var(--cream); }
.footer__copy{ width:100%; padding-top:24px; border-top:1px solid rgba(247,243,238,.14); font-size:13px; color:rgba(247,243,238,.5); }

/* ============================================================
   FLOATING WHATSAPP
   ============================================================ */
.wa{
  position:fixed; bottom:22px; right:22px; z-index:90;
  width:58px; height:58px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  background:#25D366; color:#fff; box-shadow:0 8px 24px rgba(37,211,102,.4);
  transition:transform .25s var(--ease);
}
.wa:hover{ transform:scale(1.08); }

/* ============================================================
   SCROLL ANIMATION (no-JS / reduced-motion safe)
   ============================================================ */
[data-anim]{ opacity:0; }
.no-js [data-anim],
.is-inview[data-anim]{ opacity:1; }
@media (prefers-reduced-motion:reduce){ [data-anim]{ opacity:1!important; transform:none!important; } }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .products__grid{ grid-template-columns:repeat(2,1fr); }
  .delivery__grid,.about__grid,.contact__grid{ grid-template-columns:1fr; }
  .proof__grid{ grid-template-columns:1fr; }
  .process__steps{ flex-wrap:wrap; gap:30px; }
  .step__line{ display:none; }
  .step{ flex:0 0 calc(50% - 20px); max-width:none; }
}
@media (max-width:760px){
  .nav__links,.nav__actions{ display:none; }
  .nav__burger{ display:flex; }
  .nav__mobile{ display:flex; }
  .nav__inner{ padding:8px 8px 8px 18px; }
  .products__grid{ grid-template-columns:1fr; }
  .field--row{ grid-template-columns:1fr; }
  .contact__details li{ grid-template-columns:1fr; gap:4px; }
  .step{ flex:1 1 100%; }

  /* scroll hero mobile */
  .hero-scroll{ height:300vh; }
  .anno{ max-width:220px; padding:14px 16px; }
  .anno__desc{ display:none; } /* keep it compact on small screens */
  .anno--right{ right:12px; }
  .hero-scroll__inner{ padding-top:80px; }
}