/* ═══════════════════════════════════════════
   KlairoAI — Shared Design System
═══════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --indigo:    #6366f1; --indigo-d: #4338ca; --indigo-l: #a5b4fc;
  --blue:      #2563eb; --blue-l: #93c5fd;
  --teal:      #0f766e; --teal-l: #5eead4;
  --green:     #16a34a; --green-l: #4ade80;
  --amber:     #b45309; --amber-l: #fbbf24;
  --red:       #dc2626;
  --text:      #0f172a; --text-2: #1e293b;
  --muted:     #475569; --muted-l: #64748b;
  --surface:   #ffffff; --light: #f8f9ff; --light-2: #eef0fb;
  --border:    #d1d5db; --border-a: rgba(99,102,241,0.22);
  --s1:8px;  --s2:16px; --s3:24px; --s4:32px; --s5:60px;
  --s6:48px; --s7:64px; --s8:80px; --s9:96px; --s10:128px;
  --r-sm:6px; --r-md:10px; --r-lg:14px; --r-xl:18px; --r-2xl:24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08),0 2px 6px rgba(0,0,0,.05);
  --shadow-lg: 0 16px 60px rgba(0,0,0,.1),0 4px 12px rgba(0,0,0,.05);
  --shadow-i:  0 4px 20px rgba(99,102,241,.35);
  --ease: cubic-bezier(.4,0,.2,1); --ease-out: cubic-bezier(0,0,.2,1);
  --dur-f:.15s; --dur-b:.2s; --dur-s:.3s;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,sans-serif;
  background:var(--light);color:var(--text);
  line-height:1.6;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid var(--indigo);outline-offset:3px;border-radius:var(--r-sm)}

/* ── NAV ── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:500;
  height:72px;display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--s7);
  transition:background var(--dur-s),box-shadow var(--dur-s);
}
.nav.dark{background:rgba(8,9,28,0.6);backdrop-filter:blur(20px)}
.nav.solid{background:rgba(255,255,255,.96);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);backdrop-filter:blur(16px)}
.nav-logo{display:flex;align-items:center;gap:10px;text-decoration:none;line-height:1}
.logo-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--indigo),var(--blue));
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:#fff;box-shadow:var(--shadow-i);
}
.logo-name{font-size:17px;font-weight:700;letter-spacing:-.02em;color:#fff}
.logo-name b{color:var(--indigo-l)}
.nav.solid .logo-name{color:var(--text)}
.nav.solid .logo-name b{color:var(--indigo)}
.nav-links{display:flex;align-items:center;gap:var(--s4)}
.nav-link{
  font-size:14px;font-weight:500;color:rgba(255,255,255,.7);
  text-decoration:none;padding:var(--s1) 0;position:relative;
  transition:color var(--dur-b);
}
.nav-link::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--indigo);border-radius:2px;transition:width var(--dur-s) var(--ease-out)}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav.solid .nav-link{color:var(--muted)}
.nav-link:hover,.nav-link.active{color:#fff}
.nav.solid .nav-link:hover,.nav.solid .nav-link.active{color:var(--text)}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 20px;border-radius:var(--r-md);font-size:14px;font-weight:600;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  color:#fff;text-decoration:none;transition:all var(--dur-b);
}
.nav.solid .nav-cta{background:var(--indigo);border-color:var(--indigo);box-shadow:var(--shadow-i)}
.nav-cta:hover{background:rgba(255,255,255,.2);transform:translateY(-1px)}
.nav.solid .nav-cta:hover{background:var(--indigo-d)}
.nav-cta:active{transform:scale(.97)}
.nav-burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:60px;height:60px;border-radius:var(--r-md);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);
  padding:8px;transition:background var(--dur-b);
}
.nav.solid .nav-burger{background:var(--light);border-color:var(--border)}
.burger-line{display:block;height:2px;border-radius:2px;background:#fff;transition:transform var(--dur-s) var(--ease),opacity var(--dur-b)}
.nav.solid .burger-line{background:var(--text)}
.nav-burger.open .burger-line:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open .burger-line:nth-child(2){opacity:0;transform:scaleX(0)}
.nav-burger.open .burger-line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-drawer{
  display:none;position:fixed;top:64px;left:0;right:0;
  background:rgba(255,255,255,.97);border-bottom:1px solid var(--border);
  backdrop-filter:blur(20px);padding:var(--s3) var(--s4);
  flex-direction:column;gap:var(--s2);z-index:450;
  animation:drawerIn .3s var(--ease-out) both;
}
.nav-drawer.open{display:flex}
@keyframes drawerIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.drawer-link{font-size:16px;font-weight:500;color:var(--text-2);text-decoration:none;padding:var(--s2) 0;border-bottom:1px solid var(--border);transition:color var(--dur-b)}
.drawer-link:last-of-type{border-bottom:none}
.drawer-link:hover,.drawer-link.active{color:var(--indigo)}
.drawer-cta{display:block;text-align:center;margin-top:var(--s1);padding:14px;background:linear-gradient(135deg,var(--indigo),var(--blue));color:#fff;font-size:15px;font-weight:700;border-radius:var(--r-md);text-decoration:none;box-shadow:var(--shadow-i);transition:opacity var(--dur-b),transform var(--dur-f)}
.drawer-cta:hover{opacity:.9}
.drawer-cta:active{transform:scale(.98)}

/* ── FOOTER ── */
footer{background:var(--text);padding:var(--s5) 0}
.foot-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--s2)}
.foot-brand{display:flex;align-items:center;gap:var(--s1)}
.foot-copy{font-size:13px;color:rgba(255,255,255,.4)}
.foot-links{display:flex;gap:var(--s3)}
.foot-links a{font-size:13px;color:rgba(255,255,255,.4);text-decoration:none;transition:color var(--dur-b)}
.foot-links a:hover{color:rgba(255,255,255,.8)}

/* ── LAYOUT ── */
.container{max-width:1160px;margin:0 auto;padding:0 var(--s5)}
.sec-tag{display:inline-flex;align-items:center;gap:var(--s1);font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--indigo);margin-bottom:var(--s2)}
.tag-dot{width:6px;height:6px;border-radius:50%;background:var(--indigo);animation:blink 2.5s ease-in-out infinite}
@keyframes blink{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.7)}}
.sec-h{font-size:clamp(28px,4vw,48px);font-weight:800;line-height:1.08;letter-spacing:-.028em;color:var(--text)}
.sec-p{font-size:17px;color:var(--muted);line-height:1.78;margin-top:var(--s2);max-width:520px}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;font-size:15px;font-weight:700;border-radius:var(--r-md);text-decoration:none;transition:transform var(--dur-f) var(--ease),box-shadow var(--dur-b),opacity var(--dur-b);position:relative;overflow:hidden}
.btn:active{transform:scale(.96)!important}
.btn-indigo{background:linear-gradient(135deg,var(--indigo),var(--blue));color:#fff;box-shadow:var(--shadow-i)}
.btn-indigo:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(99,102,241,.5)}
.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--muted)}
.btn-outline:hover{border-color:var(--indigo);color:var(--indigo);background:rgba(99,102,241,.04);transform:translateY(-1px)}
.btn-white{background:#fff;color:var(--text);box-shadow:0 4px 20px rgba(0,0,0,.25)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(0,0,0,.3)}

/* ── SCROLL REVEAL ── */
.r{opacity:0;transform:translateY(24px);transition:opacity .65s var(--ease-out),transform .65s var(--ease-out)}
.r.in{opacity:1;transform:none}
.d1{transition-delay:.07s}.d2{transition-delay:.14s}.d3{transition-delay:.21s}
.d4{transition-delay:.28s}.d5{transition-delay:.35s}

/* ── SCROLL PROGRESS ── */
#scroll-progress{position:fixed;top:0;left:0;height:3px;background:linear-gradient(90deg,#6366f1,#2563eb,#5eead4);z-index:9999;pointer-events:none;transition:width .1s linear;border-radius:0 2px 2px 0}

/* ── PAGE HERO (inner pages) ── */
.page-hero{
  min-height:52vh;display:flex;align-items:center;
  padding:160px 0 80px;position:relative;overflow:hidden;
  background:#08091c;
}
.page-hero-mesh{
  position:absolute;inset:0;
  background:radial-gradient(ellipse 70% 60% at 20% 30%,rgba(99,102,241,.35) 0%,transparent 55%),
             radial-gradient(ellipse 60% 50% at 80% 70%,rgba(37,99,235,.2) 0%,transparent 55%);
  animation:meshDrift 14s ease-in-out infinite alternate;
}
@keyframes meshDrift{0%{opacity:.85;transform:scale(1)}100%{opacity:1;transform:scale(1.06) rotate(.8deg)}}
.page-hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:56px 56px}
.page-hero-fade{position:absolute;bottom:0;left:0;right:0;height:120px;background:linear-gradient(to bottom,transparent,var(--light));pointer-events:none}
.page-hero-content{position:relative;z-index:2;max-width:700px}
.page-hero h1{font-size:clamp(38px,5.5vw,66px);font-weight:900;line-height:1.04;letter-spacing:-.035em;color:#fff;margin-bottom:var(--s3)}
.page-hero h1 em{font-style:normal;background:linear-gradient(100deg,#a5b4fc 0%,#7dd3fc 50%,#5eead4 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-hero p{font-size:18px;color:rgba(255,255,255,.6);line-height:1.75;max-width:560px;margin-bottom:var(--s5)}
.page-hero-actions{display:flex;gap:var(--s2);flex-wrap:wrap}
.btn-ghost-white{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.85);font-size:15px;font-weight:500;border-radius:var(--r-md);text-decoration:none;transition:all var(--dur-b)}
.btn-ghost-white:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.35);color:#fff;transform:translateY(-1px)}

/* ── CARDS ── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:var(--s4);transition:transform var(--dur-s),box-shadow var(--dur-s),border-color var(--dur-b)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--border-a)}
.card-ico{width:52px;height:52px;border-radius:var(--r-lg);background:linear-gradient(135deg,rgba(99,102,241,.1),rgba(37,99,235,.06));border:1px solid var(--border-a);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:var(--s3)}
.card h3{font-size:20px;font-weight:700;color:var(--text);margin-bottom:var(--s1);letter-spacing:-.01em}
.card p{font-size:14px;color:var(--muted);line-height:1.7}

/* ── BREADCRUMB ── */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.45);margin-bottom:var(--s3)}
.breadcrumb a{color:rgba(255,255,255,.45);text-decoration:none;transition:color var(--dur-b)}
.breadcrumb a:hover{color:rgba(255,255,255,.8)}
.breadcrumb-sep{color:rgba(255,255,255,.25)}

/* ── RESPONSIVE ── */
@media(max-width:991px){
  .nav{padding:0 var(--s3)}
  .nav-links{display:none}
  .nav-burger{display:flex}
  .container{padding:0 var(--s3)}
}
@media(max-width:575px){
  .page-hero{padding:120px 0 60px}
}

/* ── NAV JS ── */

/* Logo image */
.logo-img {
  width: 60px !important;
  height: 60px !important;
  max-width: 60px !important;
  max-height: 60px !important;
  object-fit: contain;
  border-radius: 0;
  display: block;
  flex-shrink: 0;
  align-self: center;
}