/* ============================================================
   FOUR FREIRES TECNOLOGIA — Design System
   Cores oficiais (Manual da Marca v1.0):
   --verde-progresso #00df82 | --perola #ecfde8
   --verde-avanco #03624c | --verde-tecnologia #001a16 | --verde-futuro #00302e
   Tipografia: Proxima Nova (títulos) / SF UI Text (texto)
   Substitutas web: Poppins / Inter (metricamente próximas, licença livre)
   ============================================================ */

:root{
  --verde-progresso:#00df82;
  --verde-progresso-rgb:0,223,130;
  --perola:#ecfde8;
  --verde-avanco:#03624c;
  --verde-tecnologia:#001a16;
  --verde-futuro:#00302e;

  --bg:#001a16;
  --bg-soft:#00302e;
  --ink:#ecfde8;
  --ink-soft:rgba(236,253,232,.68);
  --line:rgba(236,253,232,.12);
  --accent:#00df82;
  --accent-soft:rgba(0,223,130,.14);

  --font-head:'Poppins',sans-serif;
  --font-body:'Inter',sans-serif;

  --container:1240px;
  --radius:20px;
  --ease:cubic-bezier(.16,1,.3,1);
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;overflow-x:hidden;}
html,body{background:var(--bg);color:var(--ink);}
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,video{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}

h1,h2,h3,h4{font-family:var(--font-head);font-weight:700;line-height:1.08;letter-spacing:-.01em;}
h1{font-size:clamp(2.6rem,6vw,5.4rem);font-weight:800;}
h2{font-size:clamp(2rem,4.2vw,3.4rem);font-weight:700;}
h3{font-size:clamp(1.3rem,2vw,1.7rem);}
p{color:var(--ink-soft);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-head);font-weight:600;font-size:.78rem;
  letter-spacing:.18em;text-transform:uppercase;color:var(--accent);
  margin-bottom:18px;
}
.eyebrow::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);}

/* ---------- utility ---------- */
.text-center{text-align:center;}
.mt-lg{margin-top:80px;}
.grad-text{
  background:linear-gradient(92deg,var(--ink) 30%,var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- scroll reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(48px);transition:opacity .9s var(--ease),transform .9s var(--ease);}
[data-reveal].in-view{opacity:1;transform:translateY(0);}
[data-reveal="scale"]{transform:translateY(0) scale(.92);}
[data-reveal="scale"].in-view{transform:scale(1);}
[data-reveal="left"]{transform:translateX(-60px);}
[data-reveal="left"].in-view{transform:translateX(0);}
[data-reveal="right"]{transform:translateX(60px);}
[data-reveal="right"].in-view{transform:translateX(0);}
[data-reveal-group] [data-reveal]{transition-delay:calc(var(--i,0) * 90ms);}

/* ============ PRELOADER ============ */
#preloader{
  position:fixed;inset:0;z-index:9999;background:var(--bg);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .6s ease, visibility .6s ease;
}
#preloader img{width:96px;animation:pulse 1.4s ease-in-out infinite;}
#preloader.done{opacity:0;visibility:hidden;pointer-events:none;}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(.94);}50%{opacity:1;transform:scale(1);}}

/* ============ CURSOR GLOW (desktop) ============ */
#cursor-glow{
  position:fixed;top:0;left:0;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(var(--verde-progresso-rgb),.10),transparent 70%);
  pointer-events:none;z-index:2;transform:translate(-50%,-50%);
  transition:opacity .3s;will-change:transform;
}

/* ============ NAV ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:10px 0;transition:padding .35s var(--ease),background .35s var(--ease),border-color .35s var(--ease);
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  padding:6px 0;background:rgba(0,26,22,.82);backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav .container{display:flex;align-items:center;justify-content:space-between;}
.nav .logo img{height:140px;transition:height .35s var(--ease);}
.nav.scrolled .logo img{height:100px;}
.nav-links{display:flex;gap:38px;align-items:center;}
.nav-links a{
  font-family:var(--font-head);font-size:.86rem;font-weight:600;letter-spacing:.02em;
  color:var(--ink-soft);position:relative;padding:6px 0;transition:color .25s;
}
.nav-links a::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);
  transition:width .3s var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}
.btn{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--font-head);
  font-weight:600;font-size:.86rem;padding:14px 26px;border-radius:999px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s;
}
.btn-primary{background:var(--accent);color:#00201b;}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 32px -8px rgba(var(--verde-progresso-rgb),.55);}
.btn-ghost{border:1px solid var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px);}
.nav-cta{display:none;}
@media(min-width:900px){.nav-cta{display:inline-flex;}}

.burger{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:rgba(236,253,232,.04);
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  z-index:1001;flex:0 0 44px;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s,opacity .3s;}
@media(min-width:900px){.burger{display:none;}}
.mobile-menu{
  position:fixed;inset:0;background:var(--verde-tecnologia);z-index:998;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:28px;
  opacity:0;visibility:hidden;transition:opacity .4s,visibility .4s;
}
.mobile-menu.open{opacity:1;visibility:visible;}
.mobile-menu a{font-family:var(--font-head);font-size:1.6rem;font-weight:700;}
@media(min-width:900px){.nav-links{display:flex;}}
@media(max-width:899px){.nav-links{display:none;}}

/* ============ HERO ============ */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  overflow:hidden;isolation:isolate;
}
.hero-media{position:absolute;inset:0;z-index:0;}
.hero-media video,.hero-media img{
  width:100%;height:100%;object-fit:cover;
  filter:blur(14px) brightness(.42) saturate(1.15);
  transform:scale(1.08);
}
.hero-media::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,26,22,.45) 0%,rgba(0,26,22,.72) 55%,var(--verde-tecnologia) 100%);
}
.hero-media .grain{position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(var(--verde-progresso-rgb),.18),transparent 55%);}
.hero-inner{position:relative;z-index:1;padding-top:190px;padding-bottom:50px;}
.hero h1{margin:12px 0 22px;max-width:920px;}
.hero p.lead{max-width:560px;font-size:1.15rem;margin-bottom:32px;}
.hero-actions{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:46px;}
.hero-stats{display:flex;gap:56px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:24px;}
.hero-stats .stat b{display:block;font-family:var(--font-head);font-size:2rem;color:var(--accent);}
.hero-stats .stat span{font-size:.82rem;color:var(--ink-soft);letter-spacing:.02em;}
.scroll-cue{
  position:absolute;bottom:38px;left:50%;transform:translateX(-50%);z-index:1;
  display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--ink-soft);font-size:.72rem;
  letter-spacing:.18em;text-transform:uppercase;
}
.scroll-cue .line{width:1px;height:40px;background:linear-gradient(var(--accent),transparent);animation:scrolldown 1.8s ease-in-out infinite;}
@keyframes scrolldown{0%{opacity:0;transform:scaleY(0);transform-origin:top;}40%{opacity:1;transform:scaleY(1);transform-origin:top;}100%{opacity:0;transform:scaleY(1);transform-origin:bottom;}}

/* ============ PARALLAX LAYERS ============ */
.parallax-shape{position:absolute;border-radius:50%;filter:blur(60px);pointer-events:none;z-index:0;}

/* ============ SECTION GENERIC ============ */
section{position:relative;padding:140px 0;scroll-margin-top:90px;}
.section-head{max-width:680px;margin-bottom:64px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ MANIFESTO ============ */
.manifesto{background:var(--bg-soft);}
.manifesto-grid{display:grid;grid-template-columns:1fr;gap:60px;}
@media(min-width:960px){.manifesto-grid{grid-template-columns:1fr 1fr;align-items:start;}}
.manifesto-quote{font-family:var(--font-head);font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:600;line-height:1.35;color:var(--ink);}
.manifesto-quote em{color:var(--accent);font-style:normal;}
.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:44px;}
.stat-card{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:rgba(236,253,232,.02);}
.stat-card b{display:block;font-family:var(--font-head);font-size:2.2rem;color:var(--accent);}
.stat-card span{font-size:.84rem;color:var(--ink-soft);}

/* ============ VALUES ============ */
.values-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
@media(min-width:760px){.values-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1080px){.values-grid{grid-template-columns:repeat(4,1fr);}}
.value-card{background:var(--bg);padding:40px 30px;transition:background .35s;}
.value-card:hover{background:var(--bg-soft);}
.value-card .num{font-family:var(--font-head);color:var(--accent);font-size:.8rem;letter-spacing:.1em;margin-bottom:22px;display:block;}
.value-card h3{margin-bottom:12px;}
.value-card p{font-size:.92rem;}

/* ============ PRODUCTS — horizontal rail ============ */
.products{background:var(--bg);}
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:28px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:20px;
  scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.product-card{
  scroll-snap-align:start;flex:0 0 auto;width:min(78vw,420px);
  border-radius:calc(var(--radius) + 6px);overflow:hidden;position:relative;
  background:var(--bg-soft);border:1px solid var(--line);
  transition:transform .5s var(--ease),border-color .5s;
}
.product-card:hover{transform:translateY(-8px);border-color:var(--accent);}
.product-card .thumb{position:relative;height:240px;overflow:hidden;background:#00120f;}
.product-card .thumb video,.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease);}
.product-card:hover .thumb video,.product-card:hover .thumb img{transform:scale(1.06);}
.product-card .thumb::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,26,22,.9));}
.product-card .tag{
  position:absolute;top:16px;left:16px;z-index:2;background:rgba(0,26,22,.65);backdrop-filter:blur(6px);
  border:1px solid var(--line);padding:6px 14px;border-radius:999px;font-size:.7rem;letter-spacing:.1em;
  text-transform:uppercase;font-family:var(--font-head);
}
.product-card .body{padding:28px;}
.product-card .body h3{margin-bottom:10px;}
.product-card .body p{font-size:.9rem;margin-bottom:20px;min-height:66px;}
.product-card .link{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-head);font-weight:600;color:var(--accent);font-size:.88rem;}
.product-card .link svg{transition:transform .3s var(--ease);}
.product-card:hover .link svg{transform:translateX(6px);}
.rail-nav{display:flex;gap:14px;margin-top:36px;}
.rail-nav button{
  width:52px;height:52px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;transition:border-color .3s,background .3s;
}
.rail-nav button:hover{border-color:var(--accent);background:var(--accent-soft);}

/* ============ CLIENTS ============ */
.clients{background:var(--bg-soft);overflow:hidden;}
.marquee{width:100%;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);}
.marquee-track{display:flex;gap:80px;width:max-content;animation:marquee 32s linear infinite;align-items:center;}
.marquee:hover .marquee-track{animation-play-state:paused;}
@keyframes marquee{from{transform:translateX(0);}to{transform:translateX(-50%);}}
.client-logo{
  width:180px;height:100px;flex:0 0 180px;border-radius:16px;background:#fff;
  display:flex;align-items:center;justify-content:center;padding:18px;
  box-shadow:0 12px 24px -12px rgba(0,0,0,.35);transition:transform .35s var(--ease);
}
.client-logo img{max-width:100%;max-height:52px;width:auto;height:auto;object-fit:contain;}
.client-logo:hover{transform:translateY(-6px);}

/* ============ SHOWCASE / MOCKUP ============ */
.showcase{display:grid;gap:60px;align-items:center;}
@media(min-width:960px){.showcase{grid-template-columns:1.1fr .9fr;}}
.showcase-media{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);}
.showcase-media img{width:100%;}
.feature-list{display:flex;flex-direction:column;gap:26px;margin-top:34px;}
.feature-item{display:flex;gap:18px;align-items:flex-start;}
.feature-item .dot{
  flex:0 0 40px;height:40px;border-radius:12px;background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;color:var(--accent);
}
.feature-item h4{margin-bottom:6px;font-family:var(--font-head);font-size:1.02rem;}
.feature-item p{font-size:.92rem;}

/* ============ CTA BAND ============ */
.cta-band{
  background:linear-gradient(120deg,var(--verde-avanco),var(--verde-tecnologia) 70%);
  border-radius:32px;padding:80px 60px;position:relative;overflow:hidden;
  margin:0 auto;max-width:var(--container);
}
.cta-band::after{
  content:'';position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(var(--verde-progresso-rgb),.25),transparent 70%);
  top:-180px;right:-140px;
}
.cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:36px;align-items:center;justify-content:space-between;}
.cta-inner h2{max-width:560px;}

/* ============ CONTACT ============ */
.contact-grid{display:grid;gap:48px;}
@media(min-width:960px){.contact-grid{grid-template-columns:1fr 1fr;}}
.contact-info-list{display:flex;flex-direction:column;gap:22px;margin-top:30px;}
.contact-info-list a,.contact-info-list div{
  display:flex;gap:16px;align-items:center;font-size:.98rem;padding:16px 0;border-bottom:1px solid var(--line);
}
.contact-info-list .ic{
  width:44px;height:44px;border-radius:12px;background:var(--accent-soft);color:var(--accent);
  display:flex;align-items:center;justify-content:center;flex:0 0 44px;
}
.social-row{display:flex;gap:14px;margin-top:30px;}
.social-row a{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);display:flex;
  align-items:center;justify-content:center;transition:border-color .3s,color .3s,transform .3s;
}
.social-row a:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-4px);}

.form-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:40px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px;font-family:var(--font-head);}
.field input,.field textarea,.field select{
  width:100%;background:rgba(236,253,232,.04);border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;color:var(--ink);font-family:var(--font-body);font-size:.95rem;transition:border-color .3s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--accent);}
.field textarea{resize:vertical;min-height:120px;}

/* placeholder note used while real data is pending */
.note-pending{
  font-size:.8rem;color:var(--ink-soft);border:1px dashed var(--line);border-radius:12px;padding:12px 16px;margin-top:14px;
}

/* ============ FOOTER ============ */
footer{background:var(--verde-tecnologia);border-top:1px solid var(--line);padding-top:90px;}
.footer-top{display:grid;gap:50px;grid-template-columns:1fr;padding-bottom:60px;}
@media(min-width:900px){.footer-top{grid-template-columns:1.4fr 1fr 1fr 1fr;}}
.footer-top .logo img{height:34px;margin-bottom:18px;}
.footer-top p{max-width:280px;font-size:.9rem;}
.footer-col h4{font-family:var(--font-head);font-size:.82rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:20px;color:var(--ink);}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:.92rem;color:var(--ink-soft);transition:color .25s;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid var(--line);padding:26px 0 40px;display:flex;flex-wrap:wrap;gap:14px;
  justify-content:space-between;font-size:.8rem;color:var(--ink-soft);
}

/* ============ PRODUCT PAGE ============ */
.breadcrumb{display:flex;gap:8px;align-items:center;font-size:.82rem;color:var(--ink-soft);margin-bottom:24px;}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--accent);}
.product-hero{min-height:88vh;}
.spec-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:20px;}
@media(min-width:760px){.spec-grid{grid-template-columns:repeat(3,1fr);}}
.spec-card{background:var(--bg);padding:34px 28px;}
.spec-card b{display:block;font-family:var(--font-head);font-size:1.6rem;color:var(--accent);margin-bottom:6px;}
.spec-card span{font-size:.85rem;color:var(--ink-soft);}
.video-frame{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#00120f;cursor:pointer;}
.video-frame video{width:100%;}
.play-btn{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:80px;height:80px;border-radius:50%;background:rgba(0,26,22,.55);backdrop-filter:blur(6px);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--accent);
  transition:transform .3s var(--ease),background .3s;
}
.video-frame:hover .play-btn{transform:translate(-50%,-50%) scale(1.1);background:var(--accent);color:#00201b;}
.related-products{display:grid;gap:28px;grid-template-columns:1fr;}
@media(min-width:700px){.related-products{grid-template-columns:repeat(3,1fr);}}

/* ============ MISC ============ */
.divider-line{height:1px;background:var(--line);width:100%;}
::selection{background:var(--accent);color:#00201b;}