/* simeondimitrov.eu — EN AI-services site.
   Design language inherited from the live BG site: Playfair serif headlines,
   cyan accent, real photography, dark. Buttons = iOS frosted glass. */

:root{
  --cyan:#4FC3FF; --cyan-bright:#7DDAFF; --cyan-dim:#2A8DC2;
  --black:#060606; --dark2:#0C0F14; --dark3:#11151B;
  --line:rgba(255,255,255,.10);
  --white:#ffffff; --gray:#C4CCD8; --gray-dim:#8B94A2;
  --maxw:1160px; --r:16px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --serif:"Playfair Display",Georgia,serif;
  --body:"Inter",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--white);background-color:#06070a;
  font-family:var(--body);font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
/* fixed luxury marble backdrop (iOS-safe: real fixed element, not background-attachment) */
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:linear-gradient(rgba(6,10,22,.60),rgba(6,10,22,.72)),url('/en/assets/marble-bg.jpg?3') center center/cover no-repeat}
.hero .hero-meta{display:none}
/* drifting gold dust over the marble (black pixels vanish via screen blend) */
body::after{content:"";position:fixed;inset:-8%;z-index:-1;pointer-events:none;
  background:url('/en/assets/gold-dust.jpg?1') center center/cover no-repeat;
  mix-blend-mode:screen;opacity:.07;will-change:transform;
  animation:goldDrift 46s ease-in-out infinite}
@keyframes goldDrift{
  0%,100%{transform:translate3d(0,0,0) scale(1.08)}
  50%{transform:translate3d(-2.4%,1.8%,0) scale(1.14)}
}
@media (prefers-reduced-motion:reduce){body::after{animation:none}}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--cyan);color:#04121f}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

h1,h2{font-family:var(--serif);font-weight:900;line-height:1.1;margin:0;letter-spacing:-.01em}
h3,h4{font-family:var(--body);font-weight:700;line-height:1.28;margin:0;letter-spacing:-.015em}
h1{font-size:clamp(38px,6.2vw,76px);line-height:1.12}
h2{font-size:clamp(30px,4.6vw,50px);line-height:1.16}
h3{font-size:24px}
.em{color:var(--cyan);font-style:italic;letter-spacing:.01em}
p{margin:0 0 18px}
.lead{color:#C9D1DC;font-size:clamp(17.5px,1.55vw,20px);line-height:1.72;max-width:60ch}
.lead strong{color:var(--white);font-weight:600}

/* pill eyebrow — removed per request (no bubble badges) */
.eyebrow{display:none}

/* ---------- iOS frosted glass buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;cursor:pointer;
  font-family:var(--body);font-size:16px;font-weight:600;letter-spacing:.01em;
  padding:15px 30px;border-radius:100px;color:#fff;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.10);
  -webkit-backdrop-filter:blur(20px) saturate(170%);backdrop-filter:blur(20px) saturate(170%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.28),0 10px 34px rgba(0,0,0,.35);
  transition:transform .3s var(--ease),background .3s,border-color .3s,box-shadow .3s}
.btn:hover{transform:translateY(-2px);background:rgba(255,255,255,.17);border-color:rgba(255,255,255,.34)}
.btn .arw{transition:transform .3s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}
.btn-cyan{background:rgba(79,195,255,.20);border-color:rgba(79,195,255,.45);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 10px 34px rgba(79,195,255,.28)}
.btn-cyan:hover{background:rgba(79,195,255,.30);border-color:rgba(125,218,255,.6)}
.btn-sm{padding:11px 20px;font-size:15px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:60;
  background:rgba(6,6,6,.55);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{font-family:var(--serif);font-weight:900;font-size:21px;display:flex;align-items:center;gap:11px}
.brand .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(79,195,255,.18);animation:pulse 2.6s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(79,195,255,0)}}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links>a{font-size:16px;color:#C9D2DD;transition:color .2s}
.nav-links>a:hover{color:#fff}
.lang{display:flex;border:1px solid var(--line);border-radius:100px;overflow:hidden;font-size:12.5px;font-weight:600}
.lang a{padding:6px 12px;color:var(--gray-dim)}
.lang a.on{background:rgba(255,255,255,.10);color:#fff}
.burger{display:none;background:none;border:0;color:#fff;cursor:pointer;font-size:14px;letter-spacing:.1em}
#m{display:none;flex-direction:column;padding-bottom:14px}
#m.open{display:flex;height:auto;background:rgba(6,6,6,.97)}
.nav:has(#m.open){background:rgba(6,6,6,.97)}
#m a{padding:14px 0;border-top:1px solid var(--line);font-size:16px;color:var(--gray)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:92vh;display:flex;flex-direction:column;justify-content:center;
  align-items:center;text-align:center;padding:120px 24px 90px;overflow:hidden}
/* hero photo, blending into the marble backdrop at the bottom */
.hero::before{content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(180deg,rgba(6,7,12,.42) 0%,rgba(6,7,12,.5) 45%,rgba(6,7,12,.78) 85%,rgba(6,7,12,.96) 100%),
    url('/en/assets/hero2.jpg') center 32%/cover no-repeat;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,#000 55%,transparent 100%);
  mask-image:linear-gradient(180deg,#000 0%,#000 55%,transparent 100%)}
.hero>*{position:relative;z-index:2}
.hero h1{max-width:16ch;margin:26px auto 0;text-shadow:0 3px 26px rgba(0,0,0,.75)}
.hero-sub{color:#EDF2F8;max-width:60ch;margin:26px auto 34px;font-size:clamp(17.5px,1.7vw,21px);line-height:1.7;opacity:1;
  text-shadow:0 2px 20px rgba(0,0,0,.8),0 1px 3px rgba(0,0,0,.6)}
.hero-meta{display:flex;gap:26px;flex-wrap:wrap;justify-content:center;margin:0 auto 40px;
  font-size:13.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.8)}
.hero-meta span{display:flex;align-items:center;gap:10px}
.hero-meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}

/* ---------- sections ---------- */
.sec{padding:clamp(72px,10vw,120px) 0;position:relative}
.sec.alt{background:rgba(8,10,14,.68)}
.sec-head{max-width:1000px;margin:0 auto 56px;text-align:center}
.sec-head .lead{max-width:62ch}
.sec-head h2{margin:18px 0 0}
.sec-head .lead{margin:18px auto 0}

/* ---------- service cards ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
/* odd card count: the last one spans the full row instead of leaving a hole */
.svc-grid>:last-child:nth-child(odd){grid-column:1/-1}
.svc-card{position:relative;overflow:hidden;text-align:left;padding:38px 32px;border-radius:var(--r);
  background:linear-gradient(150deg,var(--dark3),var(--black));border:1px solid rgba(79,195,255,.15);
  transition:transform .4s var(--ease),border-color .3s,box-shadow .3s}
.svc-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);transform:translateX(-100%);transition:transform .6s var(--ease)}
.svc-card:hover::before{transform:translateX(100%)}
.svc-card:hover{transform:translateY(-6px);border-color:rgba(79,195,255,.45);box-shadow:0 24px 60px rgba(79,195,255,.12)}
.svc-card .kicker{font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#8FD6FF}
.svc-card h3{margin:14px 0 12px;font-size:24px}
.svc-card p{color:var(--gray);font-size:17px;line-height:1.62;margin:0 0 22px}
.svc-card .go{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:#fff}
.svc-card .go .arw{transition:transform .3s var(--ease);color:var(--cyan)}
.svc-card:hover .go .arw{transform:translateX(4px)}

/* ---------- portfolio / work cards ---------- */
.work-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;align-items:start}
/* odd card count: the last one spans the full row instead of leaving a hole */
.work-grid>:last-child:nth-child(odd){grid-column:1/-1}
.case{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--dark3);
  transition:transform .4s var(--ease),border-color .3s}
.case:hover{transform:translateY(-5px);border-color:rgba(79,195,255,.35)}
.case .shot{aspect-ratio:16/10;overflow:hidden;background:var(--dark2);border-bottom:1px solid var(--line)}
.case .shot img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .6s var(--ease)}
.case:hover .shot img{transform:scale(1.04)}
.case-body{padding:22px 22px 24px}
.case-tag{font-size:12px;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:#8FD6FF}
.case-body h3{margin:12px 0 8px;font-size:22px}
.case-body p{color:var(--gray);font-size:16.5px;line-height:1.62;margin:0 0 15px}
.case-visit{display:inline-flex;align-items:center;gap:7px;margin-top:14px;font-size:14.5px;font-weight:600;color:#8FD6FF;transition:color .2s}
.case-visit:hover{color:#fff}
.case-visit .ext{font-size:12px;opacity:.85}
.case-metric{font-size:15px;font-weight:600;color:var(--cyan);border-top:1px solid var(--line);padding-top:13px}
.case.noimg{background:linear-gradient(150deg,var(--dark3),var(--black));border-top:2px solid rgba(79,195,255,.4)}
.case.noimg .case-body{padding:34px 26px 30px}

/* ---------- plain-language process (top of every service page) ---------- */
.plain-sec{padding-top:clamp(56px,7vw,84px)}
.plain-sec .sec-head{max-width:1160px}
.plain-sec .sec-head h2{font-size:clamp(25px,3.4vw,40px)}
.plain{list-style:none;margin:0 auto;padding:0;max-width:840px;display:grid;gap:14px}
.plain li{display:flex;gap:20px;align-items:flex-start;padding:24px 28px;border:1px solid var(--line);
  border-radius:var(--r);background:rgba(11,14,19,.78)}
.plain .pn{flex:0 0 auto;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--body);font-weight:700;font-size:16px;color:#04121f;background:var(--cyan);margin-top:2px}
.plain h4{font-size:19px;margin:0 0 7px}
.plain p{margin:0;color:var(--gray);font-size:16.5px;line-height:1.6}
@media (max-width:600px){
  .plain li{padding:20px;gap:15px}
  .plain .pn{width:31px;height:31px;font-size:14px}
  .plain h4{font-size:18px}
}

/* ---------- companies worked with ---------- */
.allco{margin-top:46px;text-align:center}
.allco-label{display:block;font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#8FD6FF;margin-bottom:18px}
.allco-list{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.allco-list span{border:1px solid var(--line);border-radius:100px;padding:10px 19px;font-size:15px;color:#D4DBE5;
  background:rgba(255,255,255,.035);transition:border-color .3s,color .3s}
.allco-list span:hover{border-color:rgba(79,195,255,.45);color:#fff}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:52px;align-items:center}
.about-photo{border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.about-photo img{width:100%;aspect-ratio:4/5;object-fit:cover}
.about-copy h2{margin:16px 0 22px}
.about-copy p{color:var(--gray);font-size:19px;line-height:1.7}
.about-copy p strong{color:#fff;font-weight:600}

/* ---------- cta band ---------- */
.cta-band{border:1px solid rgba(79,195,255,.22);border-radius:22px;text-align:center;
  padding:clamp(40px,6vw,72px);
  background:radial-gradient(130% 150% at 50% 0%,rgba(79,195,255,.14),transparent 55%),var(--dark3)}
.cta-band p{margin:16px auto 30px}
.audit-form{max-width:520px;margin:0 auto;display:grid;gap:12px;text-align:left}
.audit-form input,.audit-form textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:12px;padding:16px 17px;color:#fff;font-family:var(--body);font-size:16.5px;resize:vertical}
.audit-form input::placeholder,.audit-form textarea::placeholder{color:var(--gray-dim)}
.audit-form input:focus,.audit-form textarea:focus{outline:none;border-color:var(--cyan)}
.audit-form .btn{justify-content:center;margin-top:4px}
.audit-msg{font-size:14.5px;color:var(--cyan);min-height:18px;text-align:center;font-weight:600}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);padding:44px 0;color:#98A2AF;font-size:15.5px}
.foot .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center}
.foot .logo{font-family:var(--serif);font-weight:900;font-size:19px;color:#fff}
.foot a{color:#B6BEC9}
.foot a:hover{color:var(--cyan)}

/* ---------- service page hero ---------- */
.shero{position:relative;text-align:center;padding:clamp(120px,16vw,180px) 24px clamp(60px,8vw,90px);overflow:hidden;border-bottom:1px solid var(--line)}
.shero::before{content:"";position:absolute;inset:0;z-index:0;
  background:radial-gradient(120% 90% at 50% -10%,rgba(79,195,255,.16),transparent 55%),var(--black)}
.shero>*{position:relative;z-index:2}
.shero h1{max-width:min(27ch,1040px);margin:22px auto 0}
.shero .lead{margin:24px auto 34px;text-align:center}
.back-link{position:absolute;top:88px;left:0;right:0;z-index:3}
.back-link a{font-size:14px;color:var(--gray);display:inline-flex;gap:8px;align-items:center}
.back-link a:hover{color:var(--cyan)}

/* ---------- included list ---------- */
.incl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.incl{padding:26px 26px;border:1px solid var(--line);border-radius:var(--r);background:var(--dark3)}
.incl h4{font-size:19px;margin:0 0 9px}
.incl p{color:var(--gray);font-size:16.5px;line-height:1.62;margin:0}
.incl .ic{color:#8FD6FF;font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}

/* ---------- process steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:st}
.step{padding:28px 24px;border-top:2px solid rgba(79,195,255,.4)}
.step .no{font-family:var(--body);font-weight:700;font-size:14px;color:var(--cyan);letter-spacing:.1em}
.step h4{margin:12px 0 9px;font-size:20px}
.step p{color:var(--gray);font-size:16.5px;line-height:1.62;margin:0}

@media (max-width:860px){
  .incl-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
}

/* ---------- expandable "everything we did" ---------- */
.case-toggle{width:100%;display:flex;align-items:center;justify-content:center;gap:9px;
  background:none;border:0;border-top:1px solid var(--line);color:var(--cyan-bright);
  font-family:var(--body);font-size:13px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  padding:15px;cursor:pointer;transition:color .2s}
.case-toggle:hover{color:#fff}
.case-toggle .chev{transition:transform .35s var(--ease);font-size:11px}
.case-more{max-height:0;overflow:hidden;transition:max-height .5s var(--ease)}
.case.open .case-more{max-height:720px}
.case.open .case-toggle .chev{transform:rotate(180deg)}
.case-more ul{list-style:none;margin:0;padding:2px 22px 22px}
.case-more li{position:relative;padding:11px 0 11px 22px;color:var(--gray);font-size:16px;line-height:1.6;border-top:1px solid rgba(255,255,255,.06)}
.case-more li:first-child{border-top:0}
.case-more li::before{content:"";position:absolute;left:0;top:19px;width:6px;height:6px;border-radius:50%;background:var(--cyan)}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}

@media (max-width:860px){
  body{font-size:17.5px}
  .hero-sub{font-size:18px;line-height:1.66}
  .svc-card p,.case-body p{font-size:16.5px}
  .case-top li,.case-more li{font-size:15.5px}
  .nav-links{display:none}
  .burger{display:block}
  .svc-grid,.work-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr;gap:30px}
  /* full photo (all 5, heads clear) as a top banner; buttons over the table, text below */
  .hero{min-height:auto;margin-top:-71px;padding:calc(66vw + 20px) 20px 50px;justify-content:flex-start;position:relative}
  .hero h1{font-size:clamp(30px,8.6vw,42px)}
  .hero::before{
    background-image:linear-gradient(180deg,rgba(6,7,12,.12) 0,rgba(6,7,12,.22) 40vw,rgba(6,7,12,.32) 64vw),url('/en/assets/hero.jpg');
    background-size:100% auto;background-position:center top;background-repeat:no-repeat;
    -webkit-mask-image:linear-gradient(180deg,#000 0,#000 42vw,transparent 66vw);
    mask-image:linear-gradient(180deg,#000 0,#000 42vw,transparent 66vw)}
  .hero-cta{position:absolute;left:12px;right:12px;top:53vw;z-index:3;flex-direction:row;flex-wrap:nowrap;justify-content:center;gap:10px}
  .hero-cta .btn{justify-content:center;padding:12px 15px;font-size:13px;white-space:nowrap;flex:0 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto}
  .rv{opacity:1;transform:none}
}

.case-top ul{list-style:none;margin:0;padding:2px 22px 6px}
.case-top li{position:relative;padding:11px 0 11px 22px;color:var(--gray);font-size:16px;line-height:1.6;border-top:1px solid rgba(255,255,255,.06)}
.case-top li:first-child{border-top:0}
.case-top li::before{content:"";position:absolute;left:0;top:19px;width:6px;height:6px;border-radius:50%;background:var(--cyan)}