/* ===== Design tokens ===== */
:root {
  --navy:    #0D2137;
  --blue:    #1A5276;
  --sky:     #2E86C1;
  --sky-lt:  #5DADE2;
  --bg:      #F7F9FC;
  --surface: #FFFFFF;
  --text:    #1A1A2A;
  --muted:   #6B7280;
  --border:  #DDE3EA;
  --tag-bg:  #EBF5FB;
  --shadow:  0 1px 3px rgba(13,33,55,.06), 0 4px 12px rgba(13,33,55,.08);
  --shadow-lg: 0 8px 32px rgba(13,33,55,.12);

  --font: system-ui,'Segoe UI',Helvetica,Arial,sans-serif;
  --font-mono: ui-monospace,'Cascadia Code',monospace;
  --max-w: 1080px;
  --r: 8px;
  --t: 200ms ease;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:var(--sky);text-decoration:none;}
a:hover{text-decoration:underline;}

/* ─── Layout ─── */
.container{max-width:var(--max-w);margin:0 auto;padding:0 1.5rem;}
section{padding:5.5rem 0;}

/* ─── Nav ─── */
nav{
  position:sticky;top:0;z-index:200;
  background:rgba(255,255,255,.95);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  max-width:var(--max-w);margin:0 auto;padding:0 1.5rem;
  display:flex;align-items:center;justify-content:space-between;
  height:58px;gap:1rem;
}
.nav-logo{
  font-size:1.1rem;font-weight:800;color:var(--navy);
  letter-spacing:-.03em;text-decoration:none;flex-shrink:0;
}
.nav-logo span{color:var(--sky);}
.nav-links{display:flex;align-items:center;gap:1.5rem;list-style:none;}
.nav-links a{font-size:.85rem;font-weight:500;color:var(--muted);transition:color var(--t);text-decoration:none;}
.nav-links a:hover{color:var(--navy);}
.nav-book{
  background:var(--sky);color:#fff !important;
  padding:.35rem .85rem;border-radius:20px;font-weight:600 !important;
  transition:background var(--t) !important;
}
.nav-book:hover{background:var(--blue) !important;text-decoration:none !important;}
.nav-actions{display:flex;align-items:center;gap:.6rem;}
.lang-toggle{
  display:flex;align-items:center;
  background:var(--bg);border:1px solid var(--border);
  border-radius:20px;overflow:hidden;
}
.lang-toggle button{
  background:none;border:none;cursor:pointer;
  padding:.28rem .6rem;font-size:.78rem;color:var(--muted);font-weight:600;
  transition:all var(--t);
}
.lang-toggle button.active{background:var(--navy);color:#fff;border-radius:20px;}
.nav-hamburger{
  display:none;flex-direction:column;gap:4px;
  background:none;border:none;cursor:pointer;padding:4px;
}
.nav-hamburger span{display:block;width:20px;height:2px;background:var(--navy);border-radius:2px;transition:var(--t);}

/* ─── Section labels / headers ─── */
.section-label{
  display:inline-block;font-size:.72rem;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;
  color:var(--sky);margin-bottom:.6rem;
}
.section-header{margin-bottom:3rem;}
.section-header h2{
  font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;
  color:var(--navy);letter-spacing:-.025em;line-height:1.15;margin-bottom:.75rem;
}
.section-header p{color:var(--muted);max-width:560px;font-size:1.05rem;line-height:1.65;}

/* ─── Buttons ─── */
.btn{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.75rem 1.5rem;border-radius:var(--r);
  font-size:.9rem;font-weight:600;cursor:pointer;
  transition:all var(--t);text-decoration:none;border:none;
}
.btn-primary{background:var(--sky);color:#fff;}
.btn-primary:hover{background:var(--blue);text-decoration:none;}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.35);}
.btn-outline:hover{background:rgba(255,255,255,.1);text-decoration:none;}
.btn-navy{background:var(--navy);color:#fff;}
.btn-navy:hover{background:#061422;text-decoration:none;}

/* ─── Hero ─── */
#hero{
  background:var(--navy);color:#fff;
  padding:7rem 0 6rem;
  position:relative;overflow:hidden;
}
#hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 70% 60% at 80% 50%, rgba(46,134,193,.18) 0%, transparent 70%);
  pointer-events:none;
}
.hero-label{
  display:inline-flex;align-items:center;gap:.5rem;
  background:rgba(46,134,193,.2);color:#93C6E7;
  font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  padding:.35rem .85rem;border-radius:20px;margin-bottom:1.75rem;
  border:1px solid rgba(46,134,193,.3);
}
#hero h1{
  font-size:clamp(2rem,4.8vw,3.4rem);font-weight:800;
  line-height:1.12;letter-spacing:-.03em;
  margin-bottom:1.5rem;max-width:680px;
}
#hero h1 .accent{color:#93C6E7;}
#hero .hero-sub{
  font-size:1.15rem;color:rgba(255,255,255,.7);
  max-width:520px;margin-bottom:2.5rem;line-height:1.65;
}
.hero-ctas{display:flex;gap:.85rem;flex-wrap:wrap;}

/* ─── Metrics strip ─── */
#metrics{
  background:var(--surface);border-bottom:1px solid var(--border);
  padding:2.25rem 0;
}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1.5rem;text-align:center;
}
.metric-n{
  font-size:2rem;font-weight:800;color:var(--navy);
  letter-spacing:-.03em;line-height:1;
}
.metric-l{font-size:.82rem;color:var(--muted);margin-top:.3rem;font-weight:500;}
.metric-divider{width:1px;background:var(--border);margin:auto;}

/* ─── Problem section ─── */
#problem{background:var(--bg);}
.problem-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1.25rem;margin-top:2.5rem;
}
.problem-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r);padding:1.75rem 1.5rem;
  border-top:3px solid var(--sky);
}
.problem-card h3{
  font-size:.95rem;font-weight:700;color:var(--navy);
  margin-bottom:.6rem;
}
.problem-card p{font-size:.875rem;color:var(--muted);line-height:1.6;}

/* ─── Services ─── */
#services{background:var(--surface);}
.services-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));
  gap:1rem;
}
.service-card{
  background:var(--bg);border:1px solid var(--border);
  border-radius:var(--r);padding:1.5rem;
  transition:box-shadow var(--t),border-color var(--t),background var(--t);
}
.service-card:hover{
  background:var(--surface);box-shadow:var(--shadow);
  border-color:#b8cfe0;
}
.service-icon{font-size:1.5rem;margin-bottom:.75rem;display:block;}
.service-card h3{font-size:.92rem;font-weight:700;color:var(--navy);margin-bottom:.45rem;}
.service-card p{font-size:.82rem;color:var(--muted);line-height:1.55;}
.run-build{
  margin-top:1.5rem;background:var(--tag-bg);border:1px solid #bcd0e0;
  border-radius:var(--r);padding:1.1rem 1.4rem;
  font-size:.88rem;color:var(--blue);display:flex;gap:.65rem;align-items:flex-start;
}
.run-build strong{color:var(--navy);}

/* ─── How it works ─── */
#how{background:var(--bg);}
.how-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1.5rem;margin-top:2.5rem;
}
.how-step{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r);padding:2rem 1.5rem;
  position:relative;
}
.how-step-n{
  font-size:2.5rem;font-weight:900;color:rgba(46,134,193,.15);
  line-height:1;margin-bottom:1rem;letter-spacing:-.05em;
}
.how-step h3{font-size:1rem;font-weight:700;color:var(--navy);margin-bottom:.5rem;}
.how-step p{font-size:.875rem;color:var(--muted);line-height:1.6;}
.how-connector{
  display:none; /* shown via grid gap */
}
.how-note{
  margin-top:1.5rem;text-align:center;font-size:.85rem;
  color:var(--muted);font-style:italic;
}

/* ─── Vision ─── */
#vision{background:var(--surface);}
.vision-manifesto{
  background:var(--navy);color:rgba(255,255,255,.85);
  border-radius:var(--r);padding:1.75rem 2rem;
  font-size:1rem;line-height:1.7;margin-bottom:2rem;
  font-style:italic;border-left:3px solid var(--sky);
}
.vision-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1rem;
}
.vision-point{
  background:var(--bg);border:1px solid var(--border);
  border-radius:var(--r);padding:1.4rem 1.4rem;
}
.vision-point h3{
  font-size:.88rem;font-weight:700;color:var(--navy);
  margin-bottom:.45rem;display:flex;align-items:center;gap:.45rem;
}
.vision-point h3::before{
  content:'';flex-shrink:0;width:7px;height:7px;
  border-radius:50%;background:var(--sky);
}
.vision-point p{font-size:.82rem;color:var(--muted);line-height:1.55;}
.vision-blog-link{margin-top:1.75rem;}
.vision-blog-link a{color:var(--sky);font-weight:600;font-size:.9rem;}

/* ─── About ─── */
#about{background:var(--bg);}
.about-grid{
  display:grid;grid-template-columns:200px 1fr;
  gap:3.5rem;align-items:start;
}
.about-avatar{
  width:160px;height:160px;border-radius:50%;
  background:linear-gradient(135deg,var(--navy) 0%,var(--sky) 100%);
  overflow:hidden;
  flex-shrink:0;
  box-shadow:var(--shadow);
}
.about-avatar img{
  width:100%;height:100%;object-fit:cover;
}
.about-name{font-size:1.5rem;font-weight:800;color:var(--navy);margin-bottom:.2rem;}
.about-role{font-size:.875rem;color:var(--sky);font-weight:500;margin-bottom:1rem;}
.about-linkedin{display:inline-block;font-size:.85rem;font-weight:600;margin-bottom:1rem;}
.about-tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-bottom:1.25rem;}
.tag{
  background:var(--tag-bg);color:var(--blue);
  font-size:.72rem;font-weight:600;
  padding:.2rem .55rem;border-radius:20px;
}
.about-bio p{font-size:.975rem;line-height:1.75;color:var(--text);}
.about-bio p+p{margin-top:.9rem;}

/* ─── Booking section ─── */
#book{
  background:var(--navy);color:#fff;
  padding:5.5rem 0;
}
#book .section-label{color:#93C6E7;}
#book .section-header h2{color:#fff;}
#book .section-header p{color:rgba(255,255,255,.65);}
.book-cta-wrap{
  margin-top:2rem;
  display:flex;flex-direction:column;align-items:flex-start;gap:1.25rem;
}
.book-or{
  display:flex;align-items:center;gap:.75rem;
  font-size:.875rem;color:rgba(255,255,255,.5);
}
.book-or::before,.book-or::after{
  content:'';flex:1;height:1px;background:rgba(255,255,255,.15);
  max-width:60px;
}
.book-email{
  color:#93C6E7;font-size:1rem;font-weight:600;
  transition:color var(--t);
}
.book-email:hover{color:#fff;}
.book-note{font-size:.82rem;color:rgba(255,255,255,.4);font-style:italic;}

/* ─── FAQ ─── */
#faq{background:var(--bg);}
.faq-list{list-style:none;max-width:720px;}
.faq-item{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r);margin-bottom:.65rem;overflow:hidden;
}
.faq-question{
  width:100%;background:none;border:none;cursor:pointer;
  padding:1.25rem 1.5rem;text-align:left;
  display:flex;justify-content:space-between;align-items:center;gap:1rem;
  font-size:.92rem;font-weight:600;color:var(--navy);
  transition:color var(--t);
}
.faq-question:hover{color:var(--sky);}
.faq-icon{
  flex-shrink:0;width:20px;height:20px;
  border-radius:50%;background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  font-size:.75rem;color:var(--muted);
  transition:transform var(--t),background var(--t);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--sky);color:#fff;}
.faq-answer{
  display:none;padding:0 1.5rem 1.25rem;
  font-size:.875rem;color:var(--muted);line-height:1.65;
}
.faq-item.open .faq-answer{display:block;}

/* ─── Blog ─── */
.blog-list{list-style:none;display:flex;flex-direction:column;gap:1rem;}
.blog-item{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r);padding:1.5rem;
  transition:box-shadow var(--t),border-color var(--t);
}
.blog-item:hover{box-shadow:var(--shadow);border-color:#b8cfe0;}
.blog-item-date{font-size:.76rem;color:var(--muted);margin-bottom:.4rem;}
.blog-item-title{font-size:1.05rem;font-weight:700;color:var(--navy);margin-bottom:.4rem;}
.blog-item-title a{color:inherit;text-decoration:none;}
.blog-item-title a:hover{color:var(--sky);}
.blog-item-excerpt{font-size:.875rem;color:var(--muted);}
.blog-item-tags{margin-top:.65rem;display:flex;gap:.35rem;flex-wrap:wrap;}

/* ─── Blog post ─── */
.post-header{padding:5rem 0 3rem;background:var(--navy);color:#fff;}
.post-header h1{
  font-size:clamp(1.6rem,3.5vw,2.5rem);font-weight:800;
  letter-spacing:-.025em;margin-bottom:1rem;
}
.post-meta{font-size:.875rem;color:rgba(255,255,255,.55);}
.post-meta .tag{background:rgba(46,134,193,.25);color:#93C6E7;}
.post-body{max-width:720px;margin:0 auto;padding:3.5rem 1.5rem 5rem;}
.post-body h2{font-size:1.45rem;font-weight:700;color:var(--navy);margin:2.5rem 0 .75rem;}
.post-body h3{font-size:1.15rem;font-weight:700;color:var(--navy);margin:2rem 0 .6rem;}
.post-body p{margin-bottom:1.1rem;}
.post-body ul,.post-body ol{margin:0 0 1.1rem 1.5rem;}
.post-body li{margin-bottom:.4rem;}
.post-body blockquote{
  border-left:3px solid var(--sky);margin:1.5rem 0;
  padding:.75rem 1.25rem;background:var(--tag-bg);
  color:var(--blue);font-style:italic;border-radius:0 var(--r) var(--r) 0;
}
.post-body code{
  font-family:var(--font-mono);font-size:.875em;
  background:var(--tag-bg);padding:.12em .38em;border-radius:3px;
}
.post-back{
  display:inline-flex;align-items:center;gap:.35rem;
  color:#93C6E7;font-size:.85rem;margin-bottom:1.5rem;
  text-decoration:none;
}
.post-back:hover{color:#fff;text-decoration:none;}

/* ─── Footer ─── */
footer{
  background:var(--navy);color:rgba(255,255,255,.4);
  padding:2rem 1.5rem;font-size:.8rem;text-align:center;
}
footer a{color:rgba(255,255,255,.5);}
footer a:hover{color:#fff;}

/* ─── Hidden (TUI stack) ─── */
#tui-stack{display:none;}

/* ─── Responsive ─── */
@media(max-width:900px){
  .vision-grid{grid-template-columns:repeat(2,1fr);}
  .how-grid{grid-template-columns:1fr;}
  .problem-grid{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:768px){
  .nav-links{
    display:none;position:absolute;top:58px;left:0;right:0;
    background:var(--surface);border-bottom:1px solid var(--border);
    flex-direction:column;padding:1rem 1.5rem;gap:.85rem;align-items:flex-start;
  }
  .nav-links.open{display:flex;}
  .nav-book{display:none;}
  .nav-hamburger{display:flex;}
  .about-grid{grid-template-columns:1fr;gap:1.5rem;}
  .about-avatar{width:80px;height:80px;font-size:1.75rem;}
  section{padding:3.5rem 0;}
  #hero{padding:4rem 0 3.5rem;}
}
@media(max-width:520px){
  .services-grid{grid-template-columns:1fr;}
  .vision-grid{grid-template-columns:1fr;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .hero-ctas{flex-direction:column;}
}