/* ==========================================================================
   Ανδρονίδης Χρήστος — Λογιστικά · Φοροτεχνικά · Ασφάλειες
   ========================================================================== */

:root{
  --teal-950:#052F33;
  --teal-900:#073C41;
  --teal-800:#0B4A4F;   /* brand primary (banner / logo background) */
  --teal-700:#0F5D63;
  --teal-600:#157880;
  --teal-200:#9FC8C4;
  --teal-050:#EAF2F1;

  --ink:#122224;
  --ink-soft:#46595B;
  --line:#DCE6E5;
  --paper:#FFFFFF;
  --paper-soft:#F5F8F7;

  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(5,47,51,.06), 0 4px 14px rgba(5,47,51,.05);
  --shadow-md:0 10px 30px rgba(5,47,51,.10);
  --shadow-lg:0 24px 60px rgba(5,47,51,.16);

  --wrap:1160px;
  --sans:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --display:"Montserrat", var(--sans);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%; scroll-behavior:smooth; scroll-padding-top:88px}
@media (prefers-reduced-motion:reduce){ html{scroll-behavior:auto} }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

img,svg,iframe{max-width:100%}
a{color:var(--teal-700); text-decoration:none}
a:hover{color:var(--teal-600)}

h1,h2,h3{font-family:var(--display); font-weight:700; line-height:1.18; letter-spacing:-.015em; margin:0 0 .5em}
h1{font-size:clamp(2.05rem, 1.35rem + 2.9vw, 3.55rem)}
h2{font-size:clamp(1.6rem, 1.2rem + 1.6vw, 2.35rem)}
h3{font-size:1.15rem; letter-spacing:-.01em}
p{margin:0 0 1rem}

.wrap{width:min(100% - 2.5rem, var(--wrap)); margin-inline:auto}

.skip-link{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--teal-800); color:#fff; padding:.75rem 1.15rem; border-radius:0 0 10px 0;
}
.skip-link:focus{left:0}

:where(a,button,input,select,textarea):focus-visible{
  outline:3px solid var(--teal-600); outline-offset:2px; border-radius:6px;
}

/* ---------- icons ---------- */
.i{width:20px; height:20px; flex:0 0 auto; fill:currentColor}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.55rem;
  font-family:var(--display); font-weight:600; font-size:.95rem; letter-spacing:.01em;
  padding:.72rem 1.3rem; border-radius:999px; border:1.5px solid transparent;
  cursor:pointer; transition:transform .15s ease, background-color .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-lg{padding:.92rem 1.7rem; font-size:1rem}
.btn-sm{padding:.5rem 1rem; font-size:.85rem}
.btn-block{width:100%}

.btn-primary{background:var(--teal-800); color:#fff; box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--teal-700); color:#fff; box-shadow:var(--shadow-md)}

.btn-ghost{background:rgba(255,255,255,.08); color:#fff; border-color:rgba(255,255,255,.45)}
.btn-ghost:hover{background:rgba(255,255,255,.16); color:#fff; border-color:#fff}

.btn-light{background:#fff; color:var(--teal-900)}
.btn-light:hover{background:var(--teal-050); color:var(--teal-900)}

.btn-outline{background:transparent; color:#fff; border-color:rgba(255,255,255,.5)}
.btn-outline:hover{background:rgba(255,255,255,.12); color:#fff; border-color:#fff}

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex; align-items:center; justify-content:space-between; gap:1rem; min-height:76px}

.brand{display:flex; align-items:center; gap:.8rem; color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  display:grid; place-items:center;
  width:46px; height:46px; border-radius:10px;
  background:var(--teal-800); color:#fff; flex:0 0 auto;
}
.brand-mark svg{width:66%; height:66%; display:block}
.brand-mark.small{width:38px; height:38px; border-radius:8px}
.brand-text{display:flex; flex-direction:column; line-height:1.2}
.brand-name{font-family:var(--display); font-weight:700; font-size:.98rem; letter-spacing:.04em}
.brand-sub{font-size:.74rem; color:var(--ink-soft); letter-spacing:.06em; text-transform:uppercase}

.site-nav{display:flex; align-items:center; gap:1.6rem}
.site-nav a{
  font-family:var(--display); font-weight:500; font-size:.94rem; color:var(--ink);
  position:relative; padding:.25rem 0;
}
.site-nav a:not(.btn)::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:2px;
  background:var(--teal-600); transition:right .22s ease;
}
.site-nav a:not(.btn):hover::after{right:0}
.site-nav a.btn{color:#fff}

.nav-toggle{
  display:none; width:44px; height:44px; border:1px solid var(--line); border-radius:10px;
  background:#fff; cursor:pointer; padding:0;
}
.nav-toggle span{display:block; width:20px; height:2px; margin:4px auto; background:var(--ink); transition:.2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  position:relative; overflow:hidden; isolation:isolate;
  background:
    radial-gradient(1100px 520px at 12% -10%, rgba(21,120,128,.55), transparent 62%),
    linear-gradient(135deg, var(--teal-900) 0%, var(--teal-800) 45%, var(--teal-950) 100%);
  color:#fff;
}
.hero-chevrons{position:absolute; inset:0; z-index:-1; opacity:.9}
.hero-chevrons svg{width:100%; height:100%; display:block}
.hero-chevrons path{fill:rgba(255,255,255,.055)}

.hero-inner{padding:clamp(4rem,3rem + 6vw,7.5rem) 0 clamp(4rem,3rem + 5vw,6.5rem); max-width:820px}

.eyebrow{
  font-family:var(--display); font-weight:600; font-size:.78rem;
  letter-spacing:.18em; text-transform:uppercase; color:var(--teal-200); margin:0 0 1rem;
  display:inline-flex; align-items:center; gap:.6rem;
}
.eyebrow::before{content:""; width:26px; height:2px; background:currentColor; display:inline-block}
.eyebrow-dark{color:var(--teal-600)}

.hero h1{color:#fff; margin-bottom:1.1rem}
.lead{font-size:clamp(1.02rem,.96rem + .3vw,1.19rem); color:rgba(255,255,255,.86); max-width:62ch; margin-bottom:1.6rem}
.lead strong{color:#fff}

.hero-tags{list-style:none; display:flex; flex-wrap:wrap; gap:.55rem; padding:0; margin:0 0 2.1rem}
.hero-tags li{
  font-family:var(--display); font-weight:600; font-size:.8rem; letter-spacing:.11em; text-transform:uppercase;
  padding:.45rem 1rem; border:1px solid rgba(255,255,255,.28); border-radius:999px;
  background:rgba(255,255,255,.06); color:rgba(255,255,255,.92);
}
.hero-cta{display:flex; flex-wrap:wrap; gap:.85rem}

/* ---------- quick contact strip ---------- */
.strip{background:var(--teal-050); border-bottom:1px solid var(--line)}
.strip-grid{
  display:grid; grid-template-columns:.95fr .95fr 1.5fr .9fr;
  gap:1px; background:var(--line); margin-block:0;
}
.strip-item{
  display:flex; align-items:center; gap:.85rem;
  background:var(--teal-050); color:var(--ink);
  padding:1.15rem 1.2rem; transition:background-color .18s ease;
}
a.strip-item:hover{background:#fff; color:var(--ink)}
.strip-item .i{width:22px; height:22px; color:var(--teal-700)}
.strip-item span{display:flex; flex-direction:column; min-width:0}
.strip-item small{font-size:.72rem; letter-spacing:.11em; text-transform:uppercase; color:var(--ink-soft)}
.strip-item b{font-family:var(--display); font-size:.9rem; font-weight:600; overflow-wrap:anywhere}
.strip-item.is-email b{font-size:.84rem; letter-spacing:-.005em}

/* ---------- generic sections ---------- */
.section{padding:clamp(3.5rem,2.5rem + 4vw,6rem) 0}
.section-alt{background:var(--paper-soft); border-block:1px solid var(--line)}
.section-head{max-width:660px; margin-bottom:2.8rem}
.section-lead{color:var(--ink-soft); font-size:1.05rem; margin:0}

/* ---------- service cards ---------- */
.cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:1.4rem}
.cards-4{grid-template-columns:repeat(auto-fit,minmax(258px,1fr)); gap:1.15rem}
.cards-4 .card{padding:1.75rem 1.5rem}
.card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:2rem 1.8rem; box-shadow:var(--shadow-sm);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover{transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:var(--teal-200)}
.card-icon{
  width:54px; height:54px; border-radius:14px; display:grid; place-items:center;
  background:linear-gradient(140deg, var(--teal-800), var(--teal-600));
  color:#fff; margin-bottom:1.25rem;
}
.card-icon svg{width:27px; height:27px; fill:currentColor}
.card > p{color:var(--ink-soft); margin-bottom:1.15rem}

.ticks{list-style:none; padding:0; margin:0; display:grid; gap:.6rem}
.ticks li{position:relative; padding-left:1.75rem; font-size:.95rem; color:var(--ink)}
.ticks li::before{
  content:""; position:absolute; left:0; top:.42em;
  width:11px; height:6px; border-left:2px solid var(--teal-600); border-bottom:2px solid var(--teal-600);
  transform:rotate(-45deg);
}

/* ---------- about ---------- */
.about-grid{display:grid; grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr); gap:clamp(2rem,1rem + 4vw,4.5rem); align-items:center}
.about-visual{display:grid; place-items:center}
.about-mark{
  position:relative; width:min(100%,340px); aspect-ratio:1;
  border-radius:28px; display:grid; place-items:center; color:#fff;
  background:linear-gradient(150deg, var(--teal-800), var(--teal-950));
  box-shadow:var(--shadow-lg); overflow:hidden;
}
.about-mark::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(115deg, transparent 45%, rgba(255,255,255,.07) 45%, rgba(255,255,255,.07) 62%, transparent 62%);
}
.about-mark svg{width:52%; height:52%; position:relative; z-index:1}
.about-text h2{margin-bottom:1rem}
.about-text p{color:var(--ink-soft)}

.pills{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:.9rem; margin-top:1.8rem}
.pill{background:#fff; border:1px solid var(--line); border-left:3px solid var(--teal-600); border-radius:10px; padding:.9rem 1.05rem}
.pill b{display:block; font-family:var(--display); font-size:.95rem}
.pill span{font-size:.87rem; color:var(--ink-soft)}

/* ---------- steps ---------- */
.steps{list-style:none; padding:0; margin:0; display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:1.6rem; counter-reset:s}
.steps li{position:relative; padding-top:1.6rem; border-top:2px solid var(--line)}
.steps li::before{content:""; position:absolute; top:-2px; left:0; width:52px; height:2px; background:var(--teal-600)}
.step-no{font-family:var(--display); font-weight:700; font-size:2.1rem; color:var(--teal-200); display:block; line-height:1; margin-bottom:.55rem}
.steps h3{margin-bottom:.4rem}
.steps p{color:var(--ink-soft); font-size:.96rem; margin:0}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg, var(--teal-900), var(--teal-700));
  color:#fff; position:relative; overflow:hidden;
}
.cta-band::after{
  content:""; position:absolute; top:-30%; right:-8%; width:46%; height:180%;
  background:rgba(255,255,255,.05); transform:skewX(-18deg);
}
.cta-inner{
  position:relative; z-index:1;
  padding:clamp(2.8rem,2rem + 3vw,4.2rem) 0;
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:2rem;
}
.cta-inner h2{color:#fff; margin-bottom:.4rem; max-width:20ch}
.cta-inner p{color:rgba(255,255,255,.82); margin:0}
.cta-actions{display:flex; flex-wrap:wrap; gap:.85rem}

/* ---------- FAQ ---------- */
.faq{display:grid; gap:.8rem; max-width:900px}
.faq details{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  box-shadow:var(--shadow-sm); overflow:hidden;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.faq details[open]{border-color:var(--teal-200); box-shadow:var(--shadow-md)}
.faq summary{
  cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; gap:1rem;
  font-family:var(--display); font-weight:600; font-size:1.02rem; line-height:1.4;
  padding:1.15rem 1.4rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:""; flex:0 0 auto; width:11px; height:11px;
  border-right:2px solid var(--teal-600); border-bottom:2px solid var(--teal-600);
  transform:rotate(45deg) translate(-2px,-2px); transition:transform .22s ease;
}
.faq details[open] summary::after{transform:rotate(-135deg) translate(-2px,-2px)}
.faq summary:hover{color:var(--teal-700)}
.faq-body{padding:0 1.4rem 1.3rem; color:var(--ink-soft); font-size:.97rem}
.faq-body p{margin:0}

/* ---------- contact ---------- */
.contact-grid{display:grid; grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr); gap:clamp(1.8rem,1rem + 3vw,3.5rem); align-items:start}

.contact-list{list-style:none; padding:0; margin:0 0 2rem; display:grid; gap:1.1rem}
.contact-list li{display:flex; gap:.9rem; align-items:flex-start}
.contact-list .i{width:22px; height:22px; color:var(--teal-700); margin-top:.2rem}
.contact-list small{display:block; font-size:.73rem; letter-spacing:.11em; text-transform:uppercase; color:var(--ink-soft)}
.contact-list a,.contact-list span{display:block; font-family:var(--display); font-weight:600; font-size:1rem; color:var(--ink); overflow-wrap:anywhere}
.contact-list a:hover{color:var(--teal-600)}
.contact-list .alt-mail{font-weight:500; font-size:.88rem; color:var(--ink-soft); margin-top:.15rem}

.socials{border-top:1px solid var(--line); padding-top:1.5rem}
.socials-label{font-size:.73rem; letter-spacing:.11em; text-transform:uppercase; color:var(--ink-soft); margin:0 0 .8rem}
.socials-row{display:flex; flex-wrap:wrap; gap:.7rem}
.social{
  display:inline-flex; align-items:center; gap:.55rem;
  font-family:var(--display); font-weight:600; font-size:.9rem; color:var(--ink);
  background:#fff; border:1.5px solid var(--line); border-radius:999px; padding:.55rem 1.1rem;
  transition:border-color .18s ease, color .18s ease, background-color .18s ease, transform .15s ease;
}
.social svg{width:18px; height:18px; fill:var(--teal-700); transition:fill .18s ease}
.social:hover{background:var(--teal-800); border-color:var(--teal-800); color:#fff; transform:translateY(-1px)}
.social:hover svg{fill:#fff}

.map{border-radius:var(--radius); overflow:hidden; border:1px solid var(--line); box-shadow:var(--shadow-sm); line-height:0}
.map iframe{width:100%; height:clamp(340px,38vw,480px); border:0; display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--teal-950); color:rgba(255,255,255,.72); padding-top:3rem}
.footer-inner{
  display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:2rem; padding-bottom:2.2rem;
}
.footer-brand{display:flex; gap:.85rem; align-items:center}
.footer-brand .brand-mark{background:rgba(255,255,255,.1)}
.footer-brand b{display:block; font-family:var(--display); font-size:.95rem; letter-spacing:.04em; color:#fff}
.footer-brand span{font-size:.8rem; letter-spacing:.04em}

.footer-nav,.footer-contact{display:flex; flex-direction:column; gap:.5rem; font-size:.92rem}
.footer-nav a,.footer-contact a{color:rgba(255,255,255,.75)}
.footer-nav a:hover,.footer-contact a:hover{color:#fff}
.footer-contact a{overflow-wrap:anywhere}
.footer-social{display:inline-flex; align-items:center; gap:.45rem; margin-top:.35rem}
.footer-social svg{width:17px; height:17px; fill:currentColor; flex:0 0 auto}

.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12); padding:1.1rem 0 1.6rem;
  font-size:.82rem; color:rgba(255,255,255,.55);
  display:flex; flex-wrap:wrap; gap:.5rem 1.5rem; justify-content:space-between; align-items:center;
}
.credit a{color:rgba(255,255,255,.78); border-bottom:1px solid rgba(255,255,255,.28); padding-bottom:1px}
.credit a:hover{color:#fff; border-bottom-color:#fff}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease}
.reveal.is-in{opacity:1; transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1; transform:none; transition:none}
  .btn:hover,.card:hover{transform:none}
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width:1000px){
  .strip-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .about-visual{order:-1}
  .about-mark{width:min(100%,260px)}
  .contact-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .cards-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:860px){
  .nav-toggle{display:block}
  .site-nav{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:stretch; gap:0;
    background:#fff; border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    padding:.5rem 1.25rem 1.25rem;
    display:none;
  }
  .site-nav.open{display:flex}
  .site-nav a:not(.btn){padding:.85rem 0; border-bottom:1px solid var(--line)}
  .site-nav a:not(.btn)::after{display:none}
  .site-nav a.btn{margin-top:1rem; align-self:flex-start}
  .header-inner{position:relative}
}

@media (max-width:640px){
  body{font-size:16px}
  .brand-name{font-size:.86rem}
  .brand-sub{font-size:.66rem}
  .brand-mark{width:40px; height:40px}
  .strip-grid{grid-template-columns:1fr}
  .cards-4{grid-template-columns:1fr}
  .faq summary{font-size:.96rem; padding:1rem 1.1rem}
  .faq-body{padding:0 1.1rem 1.1rem}
  .footer-bottom{flex-direction:column; align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .hero-cta .btn{flex:1 1 100%}
  .footer-inner{grid-template-columns:1fr}
}