/* ===== Base ===== */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; height: 100%; }

body{
  margin: 0;
  min-height: 100vh;
  height: 100%;
  display: flex;
  flex-direction: column;

  font-family: 'Inter', sans-serif;
  font-weight: 300;
  background: #f6f6f2;
  color: #333;
}

img{ max-width: 100%; height: auto; display:block; }
a{ color: inherit; }

/* ===== Header / Nav ===== */
header{
  position: sticky;
  top: 0;
  z-index: 1000;

  padding: 18px 30px;
  background: rgba(246, 246, 242, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.nav{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}

.logo{
  font-size: 12px;
  letter-spacing: 3.2px;
  text-transform: uppercase;
  font-weight: 500;
  color: rgba(0,0,0,0.85);
}

/* Desktop menu */
.nav-links{
  list-style:none;
  display:flex;
  gap:30px;
  margin:0;
  padding:0;
}

.nav-links a{
  text-decoration:none;
  color:#556b2f;
  font-weight:300;
  letter-spacing: 1px;
  transition: opacity .25s ease;
}
.nav-links a:hover{ opacity:.65; }

/* ===== Premium language switch (desktop) ===== */
.lang-switch{
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 24px;
  font-size: 12px;
  letter-spacing: 2px;
}

.lang-switch a{
  position: relative;
  text-decoration: none;
  color: rgba(0,0,0,0.45);
  padding-bottom: 3px;
  transition: color .3s ease;
}

.lang-switch a::after{
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 1px;
  background: rgba(0,0,0,0.7);
  transition: width .3s ease;
}

.lang-switch a:hover{ color: rgba(0,0,0,0.75); }
.lang-switch a:hover::after{ width: 100%; }

.lang-switch a.active{
  color: rgba(0,0,0,0.9);
}
.lang-switch a.active::after{ width: 100%; }

.lang-divider{ color: rgba(0,0,0,0.25); }

/* ===== Burger ===== */
.burger{
  display:none;
  width:44px; height:44px;
  border:0; background:transparent;
  cursor:pointer;
  position:relative;
  padding:0;
}

.burger span{
  position:absolute;
  left:12px; right:12px;
  height:1px;
  background:#556b2f;
  transition:transform .25s ease, top .25s ease, opacity .25s ease;
}

.burger span:nth-child(1){ top:18px; }
.burger span:nth-child(2){ top:26px; }

body.menu-open .burger span:nth-child(1){ top:22px; transform:rotate(45deg); }
body.menu-open .burger span:nth-child(2){ top:22px; transform:rotate(-45deg); }

/* ===== Mobile menu ===== */
.menu-backdrop{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.18);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease;
  z-index:1900;
}

.mobile-menu{
  position:fixed;
  top:0; right:0;
  height:100dvh;
  width: min(68vw, 280px);

  background:#f6f6f2;
  transform:translateX(100%);
  transition:transform .28s ease;
  z-index:2000;

  box-shadow:-18px 0 40px rgba(0,0,0,.06);

  display:flex;
  flex-direction:column;

  /* важно: без дубликатов */
  padding: 0 28px 28px;
  gap: 0;
}

body.menu-open .mobile-menu{ transform:translateX(0); }
body.menu-open .menu-backdrop{ opacity:1; pointer-events:auto; }

/* header внутри мобильного меню (EN/GR + X) */
.mobile-menu-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding: 18px 0 10px; /* внутри уже есть боковой padding у .mobile-menu */
}

.mobile-lang{
  display:flex;
  align-items:center;
  gap:10px;
  font-size: 12px;
  letter-spacing: 2px;
}

.mobile-lang a{
  text-decoration:none;
  color: rgba(0,0,0,0.6);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: opacity .2s ease;
}
.mobile-lang a:hover{ opacity: .65; }
.mobile-lang a.active{
  color: rgba(0,0,0,0.9);
  border-bottom: 1px solid rgba(0,0,0,0.6);
}

.menu-close{
  background: none;
  border: none;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  color: rgba(0,0,0,0.7);
  transition: opacity .2s ease;
}
.menu-close:hover{ opacity: .5; }

/* links list */
.mobile-nav{
  display:flex;
  flex-direction:column;
  gap: 26px;
  padding-top: 34px; /* чтобы не было ощущения "прилипло к языкам" */
}

.mobile-nav a{
  text-decoration:none;
  font-size:14px;
  letter-spacing:2px;
  text-transform:uppercase;
  color:#333;
}

/* socials bottom */
.mobile-socials{
  margin-top:auto;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding-top:18px;
  border-top:1px solid rgba(0,0,0,.08);
}

.mobile-socials a{
  text-decoration:none;
  font-size: 13px;
  letter-spacing: 1px;
  color: rgba(0,0,0,0.75);
}
.mobile-socials a:hover{ opacity:.7; }

/* ===== Hero ===== */
.hero{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:60px;
  padding:60px 40px 20px;
  flex-wrap:wrap;
  margin-bottom:60px;
}

.hero img{
  max-width:300px;
  border-radius:8px;
}

.intro{ max-width:400px; }

.intro h1{
  font-size: 28px;
  font-weight:300;
  margin:0 0 18px;
}

.intro p{
  margin:0;
  line-height:1.6;
}

.btn{
  display:inline-block;
  margin-top:20px;
  padding:10px 20px;
  border:1px solid #556b2f;
  text-decoration:none;
  color:#556b2f;
  transition:all .25s ease;
  letter-spacing:1px;
  text-transform:uppercase;
  font-size:13px;
}
.btn:hover{
  background:#556b2f;
  color:#fff;
}

/* ===== Main / Sections ===== */
main{
  max-width:1100px;
  margin:0 auto;
  padding:0 20px;
  flex: 1;
}

.section{
  padding:40px 40px;
  position:relative;
}

.section::before{
  content:"";
  position:absolute;
  top:0;
  left:20px;
  right:20px;
  height:1px;
  background:rgba(0,0,0,.06);
}

.section:first-of-type::before{ display:none; }

.section h2{
  font-size:11px;
  font-weight:400;
  letter-spacing:3px;
  text-transform:uppercase;
  color:rgba(0,0,0,.35);
  margin:0;
  padding-top: 6px;
}

/* layout: label left, content right */
.section-layout{
  display:grid;
  grid-template-columns: 160px 1fr;
  column-gap: 80px;
  align-items:start;
}

/* About / right column width */
.about-text{
  max-width: 560px;
  line-height: 1.7;
}
.about-text p{
  margin: 0 0 16px 0;
}

/* shared section content width */
.section-content{
  max-width: 560px;
}

/* Contacts */
.contact-links{
  display:flex;
  flex-wrap:wrap;
  gap: 28px;
}
.contact-links a{
  text-decoration:none;
  color:#556b2f;
  border-bottom:1px solid rgba(85,107,47,.35);
  padding-bottom:2px;
}
.contact-links a:hover{ opacity:.7; }

/* Diplomas list */
.diplomas-list{
  display:flex;
  flex-direction:column;
  gap:18px;
  max-width:560px;
}
.diploma{
  font-size:16px;
  line-height:1.5;
}
.diploma-meta{
  display:block;
  font-size:14px;
  color:rgba(0,0,0,0.55);
  margin-top:2px;
}

/* Approach */
.approach-intro{ margin-bottom: 18px; }
.approach-highlight{
  font-style: italic;
  font-size: 17px;
  margin-top: 22px;
  color: rgba(0,0,0,0.85);
  line-height: 1.7;
}

/* Reveal (optional) */
.section[data-stagger] h2,
.section[data-stagger] > :not(h2){
  opacity:0;
  transform:translateY(18px);
  filter:blur(2px);
  transition:opacity .8s ease, transform .8s ease, filter .8s ease;
  will-change:opacity, transform, filter;
}
.section[data-stagger].is-visible h2{
  opacity:1;
  transform:translateY(0);
  filter:blur(0);
}
.section[data-stagger].is-visible > :not(h2){
  opacity:1;
  transform:translateY(0);
  filter:blur(0);
  transition-delay:140ms;
}

/* ===== Gallery ===== */
.gallery{ padding:60px 40px 20px; }

.gallery h1{
  text-align:center;
  font-weight:300;
  letter-spacing:2px;
  text-transform:uppercase;
}

.gallery .grid{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.gallery .grid img{
  height:250px;
  width:auto;
  transition: transform .3s ease;
  cursor:pointer;
}

.gallery .grid img:hover{ transform:scale(1.03); }

.gallery-button{
  text-align:center;
  margin-top:20px;
}

.gallery-button button{
  background:transparent;
  border:none;
  border-bottom:1px solid #000;
  padding:8px 0;
  font-size:13px;
  letter-spacing:2px;
  text-transform:uppercase;
  cursor:pointer;
  transition:opacity .3s ease;
}
.gallery-button button:hover{ opacity:.5; }

/* ===== Testimonials ===== */
.testimonials{
  padding:60px 40px;
  max-width:640px;
  margin:0 auto;
  text-align:center;
}

.testimonials h1{
  text-align:center;
  font-weight:300;
  letter-spacing:2px;
  text-transform:uppercase;
}

.testimonial{ margin-bottom:40px; }
.testimonial p{ font-size:18px; line-height:1.6; }
.testimonial span{ display:block; margin-top:10px; opacity:.6; }

/* ===== Footer ===== */
footer{
  text-align:center;
  padding: 30px 20px 40px;
  opacity: .6;
  font-size: 13px;
  width:100%;
}

/* ===== Mobile ===== */
@media (max-width: 768px){
  header{ padding:16px 18px; }
  body{ font-weight:200; }

  .nav-links{ display:none; }
  .burger{ display:inline-block; }

  /* hide desktop language switch */
  header .lang-switch{ display:none; }

  .hero{
    padding:28px 18px 10px;
    gap:18px;
    justify-content:flex-start;
  }

  .hero img{ max-width:100%; }

  main{ padding: 0 18px; }

  .section{ padding:30px 0; }
  .section::before{ left:0; right:0; }

  .section-layout{
    grid-template-columns: 1fr;
    row-gap: 16px;
  }

  .gallery{ padding:28px 18px 14px; }
  .gallery .grid img{ height:160px; }
}

/* ===== Header scroll refinement ===== */

header{
  transition:
    background .35s ease,
    border-color .35s ease,
    padding .35s ease,
    backdrop-filter .35s ease;
}

/* состояние при scroll */
header.scrolled{
  background: rgba(246, 246, 242, 0.6);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);

  padding: 12px 30px;

  border-bottom: 1px solid rgba(0,0,0,0.04);
}

/* mobile version */
@media (max-width:768px){

  header.scrolled{
    padding: 10px 18px;
  }

}

/* force header to never hide */
header{
  transform: translateY(0) !important;
  opacity: 1 !important;
  visibility: visible !important;
  display: block !important;
  position: fixed;
  z-index: 1000;
}

/* ===== FIX: fixed header + menu layers (no layout shift) ===== */

/* 1) Header always on top */
header{
  position: fixed !important;
  top: 0; left: 0; right: 0;
  z-index: 1000 !important;
}

/* 2) Page content must start below header (adjust if needed) */
body{
  padding-top: 78px !important; /* desktop */
}

@media (max-width: 768px){
  body{ padding-top: 68px !important; } /* mobile */
}

/* 3) Backdrop must NOT push content */
.menu-backdrop{
  position: fixed !important;
  inset: 0 !important;
  z-index: 1900 !important;
  opacity: 0;
  pointer-events: none;
}

/* show backdrop only when menu open */
body.menu-open .menu-backdrop{
  opacity: 1;
  pointer-events: auto;
}

/* 4) Mobile menu must be fixed too (not in document flow) */
.mobile-menu{
  position: fixed !important;
  top: 0; right: 0;
  height: 100dvh;
  z-index: 2000 !important;
}
/* Greek highlight — clean cinematic emphasis */
html[lang="el"] .approach-highlight{
  font-style: normal;            /* убрать курсив */
  color: rgba(0,0,0,0.85);      /* чуть темнее основного текста */
  font-weight: 400;             /* оставить лёгкость */
  letter-spacing: 0.01em;       /* очень subtle */
}

/* основной текст чуть мягче для контраста */
html[lang="el"] .approach p{
  color: rgba(0,0,0,0.68);
}