/* =========================================================
   ΡΑΦΑΗΛ ΜΠΟΥΛΟΓΕΩΡΓΟΣ — design system
   Concept: the "μονογραμμικό διάγραμμα" (single-line diagram) —
   the schematic every electrical engineer draws for an
   installation — used as the connective visual language.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  /* --- color --- */
  --navy:        #0F2340;   /* primary dark / hero, footer */
  --navy-2:      #16345C;   /* secondary panel navy */
  --paper:       #EEF0F3;   /* cool light bg (not warm cream) */
  --paper-2:     #E3E7ED;   /* slightly deeper paper for cards */
  --white:       #FFFFFF;
  --copper:      #A85A2E;   /* copper wire accent */
  --copper-dark: #8A4823;
  --amber:       #DC9A3C;   /* breaker/warning amber, sparing use */
  --ink:         #17233A;   /* body text on light */
  --slate:       #4C5A72;   /* secondary text on light */
  --slate-soft:  #7887A0;
  --line:        #C9D1DE;   /* hairline on light */
  --line-dark:   rgba(255,255,255,.16);

  /* --- type --- */
  --f-display: 'Space Grotesk', sans-serif;
  --f-body:    'IBM Plex Sans', sans-serif;
  --f-mono:    'IBM Plex Mono', monospace;

  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--f-display); margin:0; line-height:1.15; letter-spacing:-0.01em; }
p{ margin:0; }

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--copper);
  outline-offset:3px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

/* ---------- eyebrow / mono labels ---------- */
.eyebrow{
  font-family:var(--f-mono);
  font-size:12.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--copper);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:8px; height:8px;
  border-radius:50%;
  background:var(--copper);
  box-shadow:0 0 0 3px rgba(168,90,46,.18);
  flex:none;
}
.eyebrow.on-dark{ color:var(--amber); }
.eyebrow.on-dark::before{ background:var(--amber); box-shadow:0 0 0 3px rgba(220,154,60,.22); }

/* ---------- header / nav ---------- */
.site-header{
  position:sticky; top:0; z-index:40;
  background:var(--navy);
  border-bottom:1px solid var(--line-dark);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 0;
}
.brand{
  display:flex;
  align-items:baseline;
  gap:10px;
  color:var(--white);
}
.brand .mark{
  width:34px; height:34px;
  flex:none;
}
.brand-text{
  font-family:var(--f-display);
  font-weight:700;
  font-size:17px;
  letter-spacing:.01em;
  color:var(--white);
}
.brand-text span{
  display:block;
  font-family:var(--f-mono);
  font-weight:400;
  font-size:10.5px;
  letter-spacing:.1em;
  color:#9FB0C9;
  text-transform:uppercase;
  margin-top:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-links a{
  font-family:var(--f-mono);
  font-size:13px;
  letter-spacing:.05em;
  color:#C7D3E6;
  text-transform:uppercase;
  padding:6px 0;
  margin-left:34px;
  position:relative;
}
.nav-links a:first-child{ margin-left:0; }
.nav-links a::after{
  content:"";
  position:absolute; left:0; right:100%; bottom:-2px;
  height:2px; background:var(--amber);
  transition:right .22s ease;
}
.nav-links a:hover::after, .nav-links a.active::after{ right:0; }
.nav-links a.active{ color:var(--white); }
.nav-cta{
  display:flex; align-items:center; gap:16px;
}
.nav-phone{
  font-family:var(--f-mono);
  font-size:14px;
  color:var(--white);
  display:flex; align-items:center; gap:8px;
}
.nav-phone svg{ width:15px; height:15px; stroke:var(--amber); }
.nav-toggle{
  display:none;
  background:none; border:0; color:var(--white);
  width:34px; height:34px; cursor:pointer;
}
.mobile-panel{ display:none; }

@media (max-width: 880px){
  .nav-links{ display:none; }
  .nav-phone span{ display:none; }
  .nav-toggle{ display:block; }
  .mobile-panel.open{
    display:block;
    background:var(--navy-2);
    border-top:1px solid var(--line-dark);
  }
  .mobile-panel ul{ padding:8px 0; }
  .mobile-panel a{
    display:block;
    padding:14px 28px;
    font-family:var(--f-mono);
    font-size:14px;
    letter-spacing:.05em;
    text-transform:uppercase;
    color:#DCE4F0;
    border-bottom:1px solid var(--line-dark);
  }
}

/* ---------- hero ---------- */
.hero{
  background:var(--navy);
  color:var(--white);
  padding:78px 0 54px;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:42px 42px;
  pointer-events:none;
}
.hero-inner{ position:relative; z-index:1; }
.hero-kicker{ margin-bottom:22px; }
.hero h1{
  font-size:clamp(38px, 6vw, 68px);
  font-weight:700;
  text-transform:uppercase;
}
.hero .role{
  font-family:var(--f-body);
  font-style:italic;
  font-size:clamp(16px,2vw,20px);
  color:#B9C7DE;
  margin-top:16px;
  max-width:640px;
}
.hero-actions{
  display:flex; gap:16px; flex-wrap:wrap;
  margin-top:36px;
}

.btn{
  font-family:var(--f-mono);
  font-size:13.5px;
  letter-spacing:.04em;
  text-transform:uppercase;
  padding:14px 26px;
  border-radius:2px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover{ transform:translateY(-2px); }
.btn-copper{
  background:var(--copper);
  color:var(--white);
}
.btn-copper:hover{ background:var(--copper-dark); }
.btn-outline{
  border-color:rgba(255,255,255,.35);
  color:var(--white);
}
.btn-outline:hover{ border-color:var(--white); }
.btn-outline.on-light{
  border-color:var(--navy);
  color:var(--navy);
}
.btn-outline.on-light:hover{ background:var(--navy); color:var(--white); }

/* ---------- single-line diagram (signature element) ---------- */
.sld{
  margin-top:64px;
  padding-top:6px;
}
.sld-row{
  display:flex;
  align-items:flex-start;
  overflow-x:auto;
  padding-bottom:8px;
  scrollbar-width:thin;
}
.sld-node{
  flex:1 1 0;
  min-width:118px;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  position:relative;
  padding:0 6px;
}
.sld-line{
  position:absolute;
  top:19px; left:-50%; right:50%;
  height:2px;
  background:repeating-linear-gradient(90deg, #4C6690 0 6px, transparent 6px 11px);
}
.sld-node:first-child .sld-line{ display:none; }
.sld-dot{
  width:38px; height:38px;
  border-radius:50%;
  border:2px solid var(--amber);
  background:var(--navy);
  display:flex; align-items:center; justify-content:center;
  z-index:1;
  color:var(--amber);
}
.sld-dot svg{ width:18px; height:18px; }
.sld-tag{
  font-family:var(--f-mono);
  font-size:10.5px;
  color:#8EA0BE;
  margin-top:10px;
  letter-spacing:.06em;
}
.sld-label{
  font-family:var(--f-body);
  font-weight:500;
  font-size:13px;
  color:#DCE4F0;
  margin-top:3px;
}

/* ---------- sections (general) ---------- */
.section{ padding:84px 0; }
.section.tight{ padding:56px 0; }
.section-head{
  max-width:640px;
  margin-bottom:48px;
}
.section-head h2{
  font-size:clamp(26px,3.4vw,38px);
  margin-top:14px;
  color:var(--navy);
  text-transform:uppercase;
}
.section-head p{
  color:var(--slate);
  margin-top:16px;
  font-size:16px;
}
.on-navy .section-head h2{ color:var(--white); }
.on-navy .section-head p{ color:#B9C7DE; }
.section.on-navy{ background:var(--navy); color:var(--white); }
.section.on-paper2{ background:var(--paper-2); }

/* ---------- credentials strip ---------- */
.creds{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--white);
}
.creds .wrap{
  display:flex;
  flex-wrap:wrap;
  gap:0;
}
.cred-item{
  flex:1 1 220px;
  padding:26px 24px;
  border-right:1px solid var(--line);
}
.cred-item:last-child{ border-right:none; }
.cred-item .num{
  font-family:var(--f-mono);
  font-size:11px;
  color:var(--copper);
  letter-spacing:.08em;
}
.cred-item .desc{
  margin-top:8px;
  font-size:14.5px;
  color:var(--ink);
  font-weight:500;
}
@media (max-width:760px){
  .cred-item{ flex:1 1 50%; border-right:1px solid var(--line); border-bottom:1px solid var(--line); }
}

/* ---------- pillars / why ---------- */
.pillars{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.pillar{
  background:var(--white);
  padding:34px 30px;
}
.pillar .idx{
  font-family:var(--f-mono);
  font-size:12px;
  color:var(--slate-soft);
}
.pillar h3{
  margin-top:14px;
  font-size:19px;
  color:var(--navy);
}
.pillar p{
  margin-top:10px;
  font-size:14.5px;
  color:var(--slate);
}
@media (max-width:820px){ .pillars{ grid-template-columns:1fr; } }

/* ---------- service cards (teaser grid, index) ---------- */
.svc-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:22px;
}
@media (max-width:900px){ .svc-grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:600px){ .svc-grid{ grid-template-columns:1fr; } }

.svc-card{
  background:var(--white);
  border:1px solid var(--line);
  padding:30px 26px;
  transition:border-color .18s ease, transform .18s ease;
}
.svc-card:hover{ border-color:var(--copper); transform:translateY(-3px); }
.svc-icon{
  width:46px; height:46px;
  border-radius:50%;
  background:var(--paper-2);
  display:flex; align-items:center; justify-content:center;
  color:var(--copper);
  margin-bottom:20px;
}
.svc-icon svg{ width:22px; height:22px; }
.svc-card h3{ font-size:17px; color:var(--navy); }
.svc-card p{ margin-top:10px; font-size:14px; color:var(--slate); }
.svc-card .more{
  margin-top:16px;
  display:inline-flex; align-items:center; gap:6px;
  font-family:var(--f-mono);
  font-size:12px;
  color:var(--copper);
  text-transform:uppercase;
  letter-spacing:.04em;
}

/* ---------- services detail rows ---------- */
.svc-detail{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:26px;
  padding:44px 0;
  border-top:1px solid var(--line);
  position:relative;
}
.svc-detail:last-child{ border-bottom:1px solid var(--line); }
.svc-detail .node{
  width:56px; height:56px;
  border-radius:50%;
  border:2px solid var(--copper);
  background:var(--white);
  display:flex; align-items:center; justify-content:center;
  color:var(--copper);
}
.svc-detail .node svg{ width:26px; height:26px; }
.svc-detail-body h3{
  font-size:22px;
  color:var(--navy);
  text-transform:uppercase;
}
.svc-detail-body .tag{
  font-family:var(--f-mono);
  font-size:11.5px;
  color:var(--slate-soft);
  letter-spacing:.08em;
  margin-top:6px;
  display:block;
}
.svc-detail-body p{
  margin-top:14px;
  color:var(--slate);
  font-size:15px;
  max-width:640px;
}
.svc-detail-body ul{
  margin-top:16px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.svc-detail-body li{
  font-family:var(--f-mono);
  font-size:12px;
  color:var(--navy);
  background:var(--paper-2);
  padding:7px 12px;
  border-radius:2px;
}
@media (max-width:600px){
  .svc-detail{ grid-template-columns:1fr; }
}

/* ---------- about / bio ---------- */
.about-hero{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:56px;
  align-items:start;
}
@media (max-width:820px){ .about-hero{ grid-template-columns:1fr; } }
.portrait-frame{
  position:relative;
  border:2px solid var(--navy);
  padding:10px;
  background:var(--white);
}
.portrait-frame img{ filter:grayscale(.15) contrast(1.03); }
.portrait-frame::after{
  content:"";
  position:absolute; top:-2px; right:-2px;
  width:16px; height:16px;
  border-top:2px solid var(--copper);
  border-right:2px solid var(--copper);
}
.portrait-frame::before{
  content:"";
  position:absolute; bottom:-2px; left:-2px;
  width:16px; height:16px;
  border-bottom:2px solid var(--copper);
  border-left:2px solid var(--copper);
  z-index:2;
}
.portrait-caption{
  font-family:var(--f-mono);
  font-size:11px;
  color:var(--slate-soft);
  margin-top:12px;
  letter-spacing:.04em;
}
.about-copy h1{
  font-size:clamp(28px,4vw,42px);
  color:var(--navy);
  text-transform:uppercase;
}
.about-copy .role{
  font-family:var(--f-body);
  font-style:italic;
  color:var(--slate);
  margin-top:10px;
  font-size:16px;
}
.about-copy p{
  margin-top:22px;
  color:var(--slate);
  font-size:15.5px;
  max-width:620px;
}
.langs{
  display:flex; gap:28px; margin-top:26px; flex-wrap:wrap;
}
.lang-item .lv{
  font-family:var(--f-mono);
  font-size:11px;
  color:var(--copper);
}
.lang-item .name{
  margin-top:4px;
  font-size:14px;
  font-weight:500;
  color:var(--navy);
}

/* ---------- timeline (education / activities — real chronology) ---------- */
.timeline{
  position:relative;
  margin-top:10px;
  padding-left:30px;
  border-left:2px dashed var(--line);
}
.t-item{
  position:relative;
  padding-bottom:36px;
}
.t-item:last-child{ padding-bottom:0; }
.t-item::before{
  content:"";
  position:absolute; left:-38px; top:2px;
  width:14px; height:14px;
  border-radius:50%;
  background:var(--paper);
  border:2px solid var(--copper);
}
.t-year{
  font-family:var(--f-mono);
  font-size:12px;
  color:var(--copper);
  letter-spacing:.06em;
}
.t-title{
  margin-top:6px;
  font-size:16px;
  font-weight:600;
  color:var(--navy);
}
.t-desc{
  margin-top:6px;
  font-size:14px;
  color:var(--slate);
  max-width:560px;
}

/* ---------- licenses list ---------- */
.license-cols{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
}
@media (max-width:760px){ .license-cols{ grid-template-columns:1fr; } }
.license-cols h4{
  font-family:var(--f-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--amber);
  padding-bottom:14px;
  border-bottom:1px solid var(--line-dark);
  margin-bottom:18px;
}
.license-cols ul li{
  font-size:14px;
  color:#D6DFEC;
  padding:9px 0;
  border-bottom:1px dotted rgba(255,255,255,.14);
  display:flex; gap:10px;
}
.license-cols ul li::before{
  content:"—";
  color:var(--amber);
  flex:none;
}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--copper);
  color:var(--white);
  padding:56px 0;
}
.cta-band .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(22px,3vw,30px);
  text-transform:uppercase;
}
.cta-band p{ margin-top:8px; color:#F5DFCB; font-size:14.5px; }

/* ---------- contact page ---------- */
.contact-grid{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:56px;
}
@media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; } }
.contact-card{
  background:var(--white);
  border:1px solid var(--line);
  padding:34px;
}
.contact-line{
  display:flex;
  align-items:center;
  gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.contact-line:last-child{ border-bottom:none; }
.contact-line .ic{
  width:42px; height:42px;
  border-radius:50%;
  background:var(--paper-2);
  color:var(--copper);
  display:flex; align-items:center; justify-content:center;
  flex:none;
}
.contact-line .ic svg{ width:19px; height:19px; }
.contact-line .lbl{
  font-family:var(--f-mono);
  font-size:11px;
  color:var(--slate-soft);
  letter-spacing:.06em;
  text-transform:uppercase;
}
.contact-line .val{
  font-size:16px;
  font-weight:500;
  color:var(--navy);
  margin-top:3px;
}
.hours-list li{
  display:flex; justify-content:space-between;
  padding:10px 0;
  border-bottom:1px dotted var(--line);
  font-size:14px;
  color:var(--slate);
}
.hours-list li span:last-child{ color:var(--navy); font-weight:500; }
.area-note{
  margin-top:24px;
  padding:18px 20px;
  background:var(--paper-2);
  border-left:3px solid var(--copper);
  font-size:14px;
  color:var(--slate);
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--navy);
  color:#B9C7DE;
  padding:54px 0 26px;
}
.footer-top{
  display:flex;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
  padding-bottom:36px;
  border-bottom:1px solid var(--line-dark);
}
.footer-brand .brand-text{ color:var(--white); }
.footer-col h4{
  font-family:var(--f-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--amber);
  margin-bottom:16px;
}
.footer-col li{ padding:6px 0; font-size:14px; }
.footer-col a:hover{ color:var(--white); }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  padding-top:22px;
  font-family:var(--f-mono);
  font-size:11.5px;
  color:#7A8CA8;
}

/* utility */
.mt-0{ margin-top:0 !important; }