/* =========================================================
   MDomotics — Design Tokens & Base Styles
   ========================================================= */

:root{
  /* Color */
  --graphite-0:#0c0d10;
  --graphite-1:#14161a;
  --graphite-2:#1c1f26;
  --graphite-3:#262a33;
  --border-soft:rgba(255,255,255,0.08);
  --border-softer:rgba(255,255,255,0.05);

  --off-white:#f5f5f2;
  --gray-100:#e7e7e4;
  --gray-300:#a8acb3;
  --gray-500:#767c86;

  --cyan:#22d3ee;
  --cyan-dim:#0f8fa8;
  --cyan-glow:rgba(34,211,238,0.18);

  --success:#3ddc97;

  /* Typography */
  --font-head:'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body:'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --sp-1:.4rem;
  --sp-2:.8rem;
  --sp-3:1.2rem;
  --sp-4:1.6rem;
  --sp-5:2.4rem;
  --sp-6:3.2rem;
  --sp-7:4.8rem;
  --sp-8:6.4rem;
  --sp-9:9.6rem;

  /* Radius */
  --r-sm:8px;
  --r-md:12px;
  --r-lg:20px;
  --r-xl:28px;

  /* Shadow */
  --shadow-soft:0 20px 60px -20px rgba(0,0,0,0.6);
  --shadow-card:0 10px 30px -12px rgba(0,0,0,0.5);

  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--graphite-1);
  color:var(--off-white);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}

h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:600;
  line-height:1.12;
  margin:0 0 var(--sp-3);
  letter-spacing:-0.01em;
}
h1{font-size:clamp(2.4rem,5.5vw,4.4rem);letter-spacing:-0.02em;}
h2{font-size:clamp(1.9rem,3.6vw,2.8rem);}
h3{font-size:clamp(1.2rem,2vw,1.5rem);}
p{margin:0 0 var(--sp-3);color:var(--gray-300);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  font-family:var(--font-head);
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:var(--sp-3);
}
.eyebrow::before{
  content:'';
  width:18px;height:1px;
  background:var(--cyan);
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--sp-4);
}

section{padding:var(--sp-8) 0;}
@media (max-width:640px){
  section{padding:var(--sp-7) 0;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.6rem;
  padding:.95rem 1.8rem;
  border-radius:999px;
  font-family:var(--font-head);
  font-size:.95rem;
  font-weight:500;
  letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:scale(.97);}
.btn-primary{
  background:var(--cyan);
  color:var(--graphite-0);
}
.btn-primary:hover{
  box-shadow:0 0 0 6px var(--cyan-glow);
  transform:translateY(-2px);
}
.btn-secondary{
  background:transparent;
  border-color:var(--border-soft);
  color:var(--off-white);
}
.btn-secondary:hover{
  border-color:var(--cyan);
  color:var(--cyan);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  color:var(--gray-300);
  padding:.6rem 1rem;
}
.btn-ghost:hover{color:var(--cyan);}
.btn-block{width:100%;}
.btn-lg{padding:1.1rem 2.2rem;font-size:1.02rem;}

/* ---------- Nav ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  padding:var(--sp-3) 0;
  background:rgba(12,13,16,0);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease), border-color .3s var(--ease), padding .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(12,13,16,0.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--border-softer);
  padding:var(--sp-2) 0;
}
.nav-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-4);
}
.logo{
  font-family:var(--font-head);
  font-size:1.15rem;
  font-weight:700;
  letter-spacing:-0.01em;
  display:flex;
  align-items:center;
  gap:.5rem;
}
.logo .dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 12px 2px var(--cyan-glow);
}
.nav-links{
  display:none;
  align-items:center;
  gap:var(--sp-5);
  font-size:.92rem;
}
.nav-links a{
  color:var(--gray-300);
  transition:color .2s var(--ease);
  position:relative;
}
.nav-links a:hover,.nav-links a.active{color:var(--off-white);}
.nav-cta{display:none;}
.nav-toggle{
  display:flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:50%;
  border:1px solid var(--border-soft);
  background:transparent;
  color:var(--off-white);
}
@media (min-width:1024px){
  .nav-links{display:flex;}
  .nav-cta{display:inline-flex;}
  .nav-toggle{display:none;}
}

.mobile-menu{
  position:fixed;
  inset:0;
  z-index:99;
  background:var(--graphite-0);
  padding:calc(var(--sp-8) + var(--sp-3)) var(--sp-4) var(--sp-6);
  display:flex;
  flex-direction:column;
  gap:var(--sp-5);
  transform:translateY(-100%);
  transition:transform .35s var(--ease);
}
.mobile-menu.open{transform:translateY(0);}
.mobile-menu a{
  font-family:var(--font-head);
  font-size:1.6rem;
  color:var(--off-white);
}
.mobile-menu .btn{margin-top:var(--sp-4);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;
  align-items:flex-end;
  padding-top:calc(var(--sp-9) + var(--sp-5));
  padding-bottom:var(--sp-8);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center;
  filter:brightness(.55) saturate(1.05);
  transform:scale(1.05);
}
.hero-scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(12,13,16,.55) 0%, rgba(12,13,16,.35) 40%, rgba(12,13,16,.95) 100%),
    linear-gradient(90deg, rgba(12,13,16,.65) 0%, rgba(12,13,16,.1) 55%);
}
.hero-content{position:relative;z-index:1;max-width:760px;}
.hero-content p.lead{
  font-size:clamp(1.05rem,1.6vw,1.25rem);
  color:var(--gray-100);
  max-width:52ch;
}
.hero-ctas{display:flex;flex-wrap:wrap;gap:var(--sp-3);margin-top:var(--sp-5);}
.hero-meta{
  position:relative;z-index:1;
  display:flex;gap:var(--sp-6);
  margin-top:var(--sp-7);
  padding-top:var(--sp-4);
  border-top:1px solid var(--border-soft);
  max-width:760px;
}
.hero-meta div{font-family:var(--font-head);}
.hero-meta strong{display:block;font-size:1.6rem;color:var(--cyan);}
.hero-meta span{font-size:.8rem;color:var(--gray-500);text-transform:uppercase;letter-spacing:.08em;}

/* ---------- Grids / Cards ---------- */
.grid{display:grid;gap:var(--sp-4);}
.grid-2{grid-template-columns:1fr;}
.grid-3{grid-template-columns:1fr;}
.grid-4{grid-template-columns:1fr;}
@media (min-width:640px){
  .grid-2{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (min-width:1024px){
  .grid-3{grid-template-columns:repeat(3,1fr);}
  .grid-4{grid-template-columns:repeat(4,1fr);}
}

.card{
  background:var(--graphite-2);
  border:1px solid var(--border-soft);
  border-radius:var(--r-lg);
  padding:var(--sp-5);
  transition:transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,211,238,0.35);
  background:var(--graphite-3);
}
.card .icon{
  width:46px;height:46px;
  border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;
  background:var(--cyan-glow);
  color:var(--cyan);
  margin-bottom:var(--sp-3);
}
.card h3{margin-bottom:var(--sp-2);}
.card p{margin-bottom:0;font-size:.95rem;}
.card a.card-link{
  display:inline-flex;align-items:center;gap:.4rem;
  margin-top:var(--sp-3);
  font-family:var(--font-head);
  font-size:.85rem;color:var(--cyan);
}

.section-head{max-width:640px;margin-bottom:var(--sp-6);}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- Steps / process ---------- */
.steps{counter-reset:step;}
.step-item{
  display:flex;
  gap:var(--sp-4);
  padding:var(--sp-4) 0;
  border-bottom:1px solid var(--border-softer);
}
.step-item:last-child{border-bottom:none;}
.step-num{
  counter-increment:step;
  font-family:var(--font-head);
  font-size:1.1rem;
  color:var(--cyan);
  min-width:2.4rem;
}
.step-num::before{content:counter(step,decimal-leading-zero);}
.step-body h4{margin-bottom:.3rem;}
.step-body p{margin-bottom:0;font-size:.92rem;}

/* ---------- Use cases ---------- */
.usecase{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  min-height:320px;
  display:flex;
  align-items:flex-end;
  padding:var(--sp-5);
  background-size:cover;
  background-position:center;
  border:1px solid var(--border-soft);
}
.usecase::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,13,16,0) 20%,rgba(12,13,16,.92) 100%);
}
.usecase-body{position:relative;z-index:1;}
.usecase-body span{
  font-family:var(--font-head);
  font-size:.78rem;color:var(--cyan);
  text-transform:uppercase;letter-spacing:.1em;
}
.usecase-body h3{margin:.4rem 0 .2rem;}
.usecase-body p{margin:0;font-size:.9rem;}

/* ---------- Forms ---------- */
.field{margin-bottom:var(--sp-4);}
.field label{
  display:block;
  font-family:var(--font-head);
  font-size:.85rem;
  margin-bottom:.5rem;
  color:var(--gray-300);
}
.field input,.field select,.field textarea{
  width:100%;
  background:var(--graphite-2);
  border:1px solid var(--border-soft);
  border-radius:var(--r-sm);
  color:var(--off-white);
  padding:.85rem 1rem;
  font-family:var(--font-body);
  font-size:.95rem;
  transition:border-color .2s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--cyan);
}
.field textarea{resize:vertical;min-height:100px;}
.field-row{display:grid;gap:var(--sp-4);}
@media (min-width:640px){
  .field-row.two{grid-template-columns:1fr 1fr;}
}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--r-xl);
  padding:var(--sp-8) var(--sp-5);
  text-align:center;
  background:
    radial-gradient(circle at 30% 20%, rgba(34,211,238,.15), transparent 60%),
    var(--graphite-2);
  border:1px solid var(--border-soft);
}
.cta-band h2{margin-bottom:var(--sp-3);}
.cta-band p{max-width:52ch;margin-left:auto;margin-right:auto;}
.cta-band .hero-ctas{justify-content:center;}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--border-soft);
  padding:var(--sp-7) 0 var(--sp-5);
  background:var(--graphite-0);
}
.footer-grid{
  display:grid;
  gap:var(--sp-6);
  grid-template-columns:1fr;
  margin-bottom:var(--sp-6);
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
}
.footer-grid h5{
  font-family:var(--font-head);
  font-size:.82rem;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--gray-500);
  margin-bottom:var(--sp-3);
}
.footer-grid a{
  display:block;
  color:var(--gray-300);
  font-size:.92rem;
  padding:.3rem 0;
  transition:color .2s var(--ease);
}
.footer-grid a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;
  flex-direction:column;
  gap:var(--sp-2);
  padding-top:var(--sp-4);
  border-top:1px solid var(--border-softer);
  font-size:.82rem;
  color:var(--gray-500);
}
@media (min-width:640px){
  .footer-bottom{flex-direction:row;justify-content:space-between;}
}

/* ---------- Reveal animation ---------- */
.reveal{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ---------- Utility ---------- */
.text-center{text-align:center;}
.mt-0{margin-top:0;}
.tag-row{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:var(--sp-4);}
.tag{
  font-size:.78rem;
  font-family:var(--font-head);
  padding:.4rem .9rem;
  border-radius:999px;
  border:1px solid var(--border-soft);
  color:var(--gray-300);
}

/* ---------- Page hero (non-home pages) ---------- */
.page-hero{
  padding-top:calc(var(--sp-9) + var(--sp-4));
  padding-bottom:var(--sp-6);
  position:relative;
}
.page-hero .container{max-width:820px;}
.page-hero p.lead{font-size:1.1rem;max-width:60ch;}

.breadcrumb{
  font-size:.8rem;color:var(--gray-500);
  margin-bottom:var(--sp-3);
  display:flex;gap:.5rem;align-items:center;
}
.breadcrumb a{color:var(--gray-500);}
.breadcrumb a:hover{color:var(--cyan);}