/* ========== Нова палітра та змінні ========== */
:root{
  --clr-primary: #FFD166; /* Яскравий жовтий */
  --clr-accent: #073B4C;   /* Глибокий синій */
  --clr-bg: #FFFFFF;
  --clr-surface: #F9F9F9;
  --clr-text: #111D23;
  --clr-border: #EAEAEA;
  --radius: 8px;
  --transition:.3s ease;
}

/* ====== Reset & base ====== */
*, *::before, *::after { box-sizing:border-box; margin:0; padding:0; }
body {
  font-family:'Manrope',sans-serif;
  background:var(--clr-bg);
  color:var(--clr-text);
  line-height:1.7;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
h2{font-size:clamp(28px, 4vw, 40px);font-weight:800;text-align:center;margin-bottom:60px;color:var(--clr-text)}

/* ===== Header ===== */
.header{
  position:fixed;inset:0 0 auto;
  background:rgba(255,255,255,.8);
  backdrop-filter:blur(12px);
  z-index:1000;
  border-bottom:1px solid var(--clr-border);
}
.nav-content{display:flex;justify-content:space-between;align-items:center;padding:16px 0}
.logo img{height:40px}

.nav-menu{display:flex;gap:36px;list-style:none}
.nav-menu a{color:var(--clr-text);text-decoration:none;font-weight:600;transition:color var(--transition)}
.nav-menu a:hover{color:var(--clr-primary)}

.menu-toggle{display:none;flex-direction:column;gap:6px;background:none;border:0;cursor:pointer}
.menu-toggle span{width:26px;height:3px;background:var(--clr-text);transition:transform var(--transition)}

/* ===== Hero ===== */
.hero{
  min-height:85vh;
  display:flex;align-items:center;text-align:center;
  padding:140px 0 100px;
  background:var(--clr-bg);
  color:var(--clr-text)
}
.hero-content h1{
  font-size:clamp(36px,5.5vw,60px);
  font-weight:800;
  max-width:850px;
  margin:0 auto 40px;
  line-height: 1.2;
}
.cta-button,.cta-button-large{
  display:inline-block;background:var(--clr-primary);color:var(--clr-text);
  padding:16px 36px;border-radius:var(--radius);font-weight:700;text-decoration:none;
  transition:transform var(--transition),box-shadow var(--transition);border:none;cursor:pointer
}
.cta-button-large{font-size:18px;padding:20px 48px}
.cta-button:hover,.cta-button-large:hover{
  transform:translateY(-3px);box-shadow:0 8px 20px rgba(255, 209, 102,.5);
}

/* ===== Clients ===== */
.clients-section{padding:80px 0;background:var(--clr-bg);text-align:center}
.clients-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:40px;align-items:center}
.clients-grid img{filter:grayscale(100%);opacity:.6;transition:all var(--transition)}
.clients-grid img:hover{filter:none;opacity:1}

/* ===== Services ===== */
.services-section{padding:90px 0;background:var(--clr-surface);color:var(--clr-text)}
.services-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));border:1px solid var(--clr-border);border-radius:var(--radius); overflow: hidden;}
.service-item{
  padding:40px 30px;text-align:center;border-bottom:1px solid var(--clr-border);border-right:1px solid var(--clr-border);
  transition:background var(--transition)
}
.service-item:hover{background:var(--clr-bg)}
.service-item svg{width:50px;height:50px;margin:0 auto 18px;fill:none;stroke:var(--clr-accent);stroke-width:2}
.service-item h3 { font-size: 16px; font-weight: 700; }

/* ===== About ===== */
.about-section{padding:90px 0;background:var(--clr-bg);color:var(--clr-text)}
.about-content{max-width:700px; margin: 0 auto; text-align: center;}
.about-content p{font-size:18px;margin-bottom:26px; line-height: 1.8;}

/* ===== Case studies ===== */
.case-studies-section{padding:90px 0;background:var(--clr-surface);color:var(--clr-text)}
.case-studies-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:30px}
.case-study-item{position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);transition:transform var(--transition)}
.case-study-item:hover{transform:translateY(-8px)}
.case-study-overlay{
  position:absolute;inset:0;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:30px;background:linear-gradient(0deg,rgba(0,0,0,.7) 0%,transparent 100%);
  color: #fff;
}
.case-study-overlay h3 { font-size: 24px; }

/* ===== Philosophy & Values ===== */
.philosophy-section, .values-section{padding:90px 0;background:var(--clr-bg);color:var(--clr-text)}
.philosophy-quotes, .values-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}
.quote-item, .value-item{
  padding:32px;border:1px solid var(--clr-border);border-radius:var(--radius);
  background: var(--clr-surface);
}
.quote-item blockquote{font-style:italic;margin-bottom:18px;font-size: 18px;}
.quote-item cite { font-weight: 700; color: var(--clr-accent); font-style: normal; }
.value-item h3 { margin-bottom: 1rem; font-size: 18px; }

.office-images{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:30px;margin-top:60px}
.office-images img { border-radius: var(--radius); }

/* ===== Partners ===== */
.partners-section{padding:80px 0;background:var(--clr-surface);text-align:center}
.partners-grid{display:flex;gap:50px;justify-content:center;flex-wrap:wrap; align-items: center;}
.partners-grid img{max-height:45px;filter:grayscale(100%);opacity:.7;transition:all var(--transition)}
.partners-grid img:hover{filter:none;opacity:1}

/* ===== CTA ===== */
.cta-section{padding:90px 0;background:var(--clr-primary);text-align:center}
.cta-section h2 { color: var(--clr-text); }
.cta-button-large { background: var(--clr-accent); color: #fff; }
.cta-button-large:hover { box-shadow:0 8px 20px rgba(7, 59, 76,.3); }

/* ===== Footer ===== */
.footer{background:var(--clr-accent);color:#fff;padding:70px 0 40px}
.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:40px;margin-bottom:40px}
.footer-section h3{font-size:18px;margin-bottom:22px}
.footer-section a{color:#fff;text-decoration:none;opacity:.8;transition:opacity var(--transition)}
.footer-section a:hover{opacity:1}
.social-links{display:flex;gap:16px;margin-top:22px}
.social-links a{
  width:40px;height:40px;display:grid;place-items:center;
  background:rgba(255,255,255,.1);border-radius:50%;font-size:14px;
  transition:background var(--transition);color:#fff;text-decoration:none
}
.social-links a:hover{background:rgba(255,255,255,.2)}
.footer-bottom{text-align:center;border-top:1px solid rgba(255,255,255,.2);padding-top:32px;font-size:14px; opacity: .8;}

/* ===== Responsive ===== */
@media (max-width:768px){
  .nav-menu{
    position:absolute;top:100%;left:0;right:0;background:var(--clr-bg);
    flex-direction:column;padding:24px;display:none;
    border-bottom: 1px solid var(--clr-border);
  }
  .nav-menu.active{display:flex}
  .menu-toggle{display:flex}
  .case-studies-grid{grid-template-columns: 1fr;}
}