/* ==========================================================================
   NCK Viagens e Turismo — Design tokens
   Paleta: preto retinto, dourado, vermelho — a identidade já existente da marca.
   Tipografia: Poppins em todos os papéis (display, corpo, utilitário),
   diferenciada por peso, escala e tracking — como definido no guia da marca.
   ========================================================================== */

:root{
  --ink: #0d0d0f;
  --charcoal: #1a1a1e;
  --charcoal-2: #232327;
  --cream: #f5f2ee;
  --cream-dim: #e8e3db;
  --gold: #d4af37;
  --gold-soft: #c9a84c;
  --crimson: #b22222;
  --crimson-bright: #d33a34;

  --ink-text: #17171a;
  --muted-on-cream: #5c5a56;
  --muted-on-ink: #b7b3ac;

  --font: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container: 1200px;
  --gutter: clamp(24px, 5vw, 64px);
  --section-pad: clamp(72px, 11vw, 160px);

  --ease: cubic-bezier(.16,.8,.24,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body{
  margin:0;
  font-family: var(--font);
  background: var(--cream);
  color: var(--ink-text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 2px;
}

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size: 12.5px;
  font-weight:600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}
.eyebrow::before{
  content:'';
  width:22px; height:1px;
  background: var(--gold);
  display:inline-block;
}

/* Reveal-on-scroll */
.reveal{
  opacity:0;
  transform: translateY(28px);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  will-change: opacity, transform;
}
.reveal.in{ opacity:1; transform:none; }
.reveal-stagger > *{ transition-delay: calc(var(--i,0) * 90ms); }

/* ==========================================================================
   Scroll progress — flight path
   ========================================================================== */
.flight-progress{
  position: fixed;
  top:0; left:0; right:0;
  height:3px;
  z-index: 9999;
  background: transparent;
}
.flight-progress__bar{
  height:100%;
  width:0%;
  background: linear-gradient(90deg, var(--crimson), var(--gold));
  transform-origin: left;
  transition: width .12s linear;
}

/* ==========================================================================
   Nav
   ========================================================================== */
.nav{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 1000;
  padding: 22px 0;
  transition: padding .4s var(--ease), background .4s var(--ease), backdrop-filter .4s var(--ease), box-shadow .4s var(--ease);
}
.nav__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.nav.scrolled{
  padding: 14px 0;
  background: rgba(13,13,15,.72);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 1px 0 rgba(212,175,55,.14);
}
.nav__logo{ display:flex; align-items:center; gap:10px; }
.nav__logo img{ height:26px; width:auto; }
.nav__links{
  display:flex;
  align-items:center;
  gap: 38px;
}
.nav__links a{
  font-size: 14.5px;
  font-weight:500;
  color: var(--cream);
  opacity:.86;
  position:relative;
  padding: 4px 0;
  transition: opacity .25s;
}
.nav__links a:hover{ opacity:1; }
.nav__links a::after{
  content:'';
  position:absolute; left:0; bottom:-2px;
  width:0; height:1px;
  background: var(--gold);
  transition: width .3s var(--ease);
}
.nav__links a:hover::after{ width:100%; }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  font-size:14.5px;
  font-weight:600;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .35s, border-color .35s, color .35s;
  white-space: nowrap;
}
.btn:active{ transform: scale(.97); }
.btn--gold{
  background: linear-gradient(135deg, var(--gold), #b98f2a);
  color: #1a1408;
  box-shadow: 0 8px 24px -8px rgba(212,175,55,.55);
}
.btn--gold:hover{ transform: translateY(-2px); box-shadow: 0 14px 30px -10px rgba(212,175,55,.65); }
.btn--ghost-dark{
  border-color: rgba(245,242,238,.28);
  color: var(--cream);
}
.btn--ghost-dark:hover{ border-color: var(--gold); color: var(--gold); }
.btn--ghost-light{
  border-color: rgba(23,23,26,.2);
  color: var(--ink-text);
}
.btn--ghost-light:hover{ border-color: var(--crimson); color: var(--crimson); }
.btn--sm{ padding: 10px 20px; font-size:13.5px; }

.nav__cta{ display:flex; align-items:center; gap:18px; }
.nav__burger{
  display:none;
  width:38px; height:38px;
  border:none; background:none;
  flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.nav__burger span{ width:22px; height:1.5px; background:var(--cream); display:block; transition: transform .3s, opacity .3s; }
.nav__burger.open span:nth-child(1){ transform: translateY(6.5px) rotate(45deg); }
.nav__burger.open span:nth-child(2){ opacity:0; }
.nav__burger.open span:nth-child(3){ transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu{
  position: fixed; inset:0;
  background: rgba(13,13,15,.98);
  backdrop-filter: blur(10px);
  z-index: 999;
  display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  gap: 30px;
  opacity:0; visibility:hidden;
  transition: opacity .4s var(--ease), visibility .4s;
}
.mobile-menu.open{ opacity:1; visibility:visible; }
.mobile-menu a{ font-size: 26px; font-weight:600; color: var(--cream); }
.mobile-menu a:hover{ color:var(--gold); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;
  min-height: 100svh;
  display:flex;
  align-items:center;
  background: var(--ink);
  color: var(--cream);
  overflow:hidden;
  padding-top: 120px;
  padding-bottom: 80px;
}
.hero__bg{
  position:absolute; inset:0;
  z-index:0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(212,175,55,.14), transparent 60%),
    radial-gradient(ellipse 80% 60% at 85% 100%, rgba(178,34,34,.10), transparent 60%),
    var(--ink);
}
.hero__path{
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
}
.hero__path svg{ width:100%; height:100%; }
.flight-line{
  fill:none;
  stroke: var(--gold);
  stroke-width:1.4;
  stroke-dasharray: 6 8;
  opacity:.55;
  stroke-dashoffset: 1400;
  animation: dash 3.2s var(--ease) forwards .3s;
}
@keyframes dash{ to{ stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce){
  .flight-line{ stroke-dashoffset:0; animation:none; }
  .flight-plane animateMotion{ display:none; }
}

.hero__content{
  position:relative;
  z-index:2;
  max-width: 760px;
}
.hero__logo{
  height: clamp(30px, 4vw, 40px);
  width:auto;
  margin-bottom: 28px;
}
.hero h1{
  font-size: clamp(42px, 6.6vw, 92px);
  font-weight:700;
  line-height: 1.03;
  letter-spacing: -0.02em;
  margin: 22px 0 26px;
}
.hero h1 em{
  font-style:normal;
  color: var(--gold);
}
.hero p.lead{
  font-size: clamp(16.5px, 1.7vw, 20px);
  font-weight:300;
  line-height:1.6;
  color: var(--muted-on-ink);
  max-width: 540px;
  margin-bottom: 40px;
}
.hero__ctas{ display:flex; gap:16px; flex-wrap:wrap; }

.hero__scroll{
  position:absolute;
  bottom: 34px; left:50%;
  transform: translateX(-50%);
  z-index:2;
  display:flex; flex-direction:column; align-items:center; gap:8px;
  color: var(--muted-on-ink);
  font-size:11px; letter-spacing:.18em; text-transform:uppercase;
}
.hero__scroll .line{
  width:1px; height:30px;
  background: linear-gradient(var(--gold), transparent);
  animation: scrollpulse 1.8s ease-in-out infinite;
}
@keyframes scrollpulse{ 0%,100%{opacity:.3;} 50%{opacity:1;} }

/* ==========================================================================
   Offers band
   ========================================================================== */
.band{
  background: var(--charcoal);
  border-top: 1px solid rgba(212,175,55,.16);
  border-bottom: 1px solid rgba(212,175,55,.16);
}
.band__grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
}
.band__item{
  position:relative;
  padding: 34px var(--gutter);
  display:flex;
  align-items:center;
  gap:18px;
  color: var(--cream);
  transition: background .3s;
  border-right: 1px solid rgba(212,175,55,.14);
}
.band__item:last-child{ border-right:none; }
.band__item:hover{ background: rgba(212,175,55,.06); }
.band__item .tag{
  font-size:11px; font-weight:700; letter-spacing:.16em;
  color: var(--ink);
  background: var(--gold);
  padding: 5px 10px;
  border-radius: 999px;
  flex-shrink:0;
}
.band__item .txt strong{ display:block; font-size:16px; font-weight:600; margin-bottom:2px; }
.band__item .txt span{ font-size:13.5px; color: var(--muted-on-ink); }
.band__item svg{ margin-left:auto; opacity:.5; width:16px; height:16px; flex-shrink:0; transition: transform .3s, opacity .3s; }
.band__item:hover svg{ opacity:1; transform: translateX(4px); }

/* ==========================================================================
   Section shell
   ========================================================================== */
.section{ padding: var(--section-pad) 0; }
.section--ink{ background: var(--ink); color: var(--cream); }
.section-head{
  max-width: 640px;
  margin-bottom: 64px;
}
.section-head h2{
  font-size: clamp(30px, 4vw, 48px);
  font-weight:700;
  letter-spacing:-0.015em;
  line-height:1.12;
  margin-top:16px;
}
.section-head p{
  margin-top:18px;
  font-size:17px;
  font-weight:300;
  line-height:1.6;
  color: var(--muted-on-cream);
}
.section--ink .section-head p{ color: var(--muted-on-ink); }

/* ==========================================================================
   Services grid
   ========================================================================== */
.services__grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(23,23,26,.08);
  border: 1px solid rgba(23,23,26,.08);
}
.service-card{
  background: var(--cream);
  padding: 44px 36px;
  transition: background .4s var(--ease), transform .4s var(--ease);
  position:relative;
}
.service-card:hover{ background:#fff; }
.service-card__icon{
  width:56px; height:56px;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  border: 1.4px solid var(--gold);
  margin-bottom: 26px;
  transition: background .35s var(--ease), transform .35s var(--ease);
}
.service-card:hover .service-card__icon{ background: var(--gold); transform: rotate(-8deg) scale(1.05); }
.service-card__icon svg{ width:26px; height:26px; stroke: var(--gold); transition: stroke .35s; }
.service-card:hover .service-card__icon svg{ stroke: var(--ink); }
.service-card h3{
  font-size:19.5px; font-weight:600; margin-bottom:10px; letter-spacing:-0.01em;
}
.service-card p{
  font-size:14.5px; line-height:1.6; color: var(--muted-on-cream);
  margin-bottom:20px;
}
.service-card__link{
  font-size:13px; font-weight:600; letter-spacing:.03em;
  color: var(--crimson);
  display:inline-flex; align-items:center; gap:6px;
}
.service-card__link svg{ width:13px; height:13px; transition: transform .3s; }
.service-card__link:hover svg{ transform: translateX(3px); }

/* ==========================================================================
   Trust / values
   ========================================================================== */
.values{
  display:grid;
  grid-template-columns: repeat(4,1fr);
  gap: 42px;
}
.value h3{
  font-size:16.5px; font-weight:600; margin: 18px 0 8px;
}
.value p{ font-size:14px; color:var(--muted-on-cream); line-height:1.55; }
.value__icon{ width:34px; height:34px; }
.value__icon svg{ width:100%; height:100%; stroke: var(--crimson); }

/* ==========================================================================
   Essence — cinematic statement
   ========================================================================== */
.essence{
  text-align:center;
  position:relative;
  padding: calc(var(--section-pad) * 1.15) 0;
}
.essence__plane{ width:34px; height:34px; margin: 0 auto 28px; opacity:.9; }
.essence h2{
  font-size: clamp(32px, 5.4vw, 64px);
  font-weight:700;
  line-height:1.14;
  letter-spacing:-0.02em;
}
.essence h2 .accent{ color: var(--crimson-bright); }
.essence__heart{ width:22px; height:22px; margin: 30px auto 0; opacity:.8; }
.essence__heart svg{ stroke: var(--gold); width:100%; height:100%; }

/* ==========================================================================
   Final CTA
   ========================================================================== */
.cta-final{
  background: linear-gradient(160deg, var(--charcoal), var(--ink) 70%);
  color: var(--cream);
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-final::before{
  content:'';
  position:absolute; inset:0;
  background: radial-gradient(circle at 50% 120%, rgba(212,175,55,.18), transparent 60%);
}
.cta-final__inner{ position:relative; z-index:1; max-width:640px; margin:0 auto; }
.cta-final h2{
  font-size: clamp(28px, 4vw, 44px);
  font-weight:700;
  letter-spacing:-0.015em;
  margin: 18px 0 30px;
}
.cta-final__ctas{ display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }
.cta-final__insta{
  margin-top: 30px;
  display:inline-flex; align-items:center; gap:8px;
  font-size:14px; color: var(--muted-on-ink);
}
.cta-final__insta a{ color: var(--gold); font-weight:600; }
.cta-final__insta a:hover{ text-decoration:underline; }

/* ==========================================================================
   Footer
   ========================================================================== */
.footer{
  background: #08080a;
  color: var(--muted-on-ink);
  padding: 76px 0 28px;
}
.footer__top{
  display:grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(212,175,55,.14);
}
.footer__logo img{ height:30px; margin-bottom:18px; }
.footer__about p{ font-size:14px; line-height:1.7; max-width:280px; }
.footer h4{
  font-size:12.5px; font-weight:600; letter-spacing:.14em; text-transform:uppercase;
  color: var(--gold); margin-bottom:20px;
}
.footer ul li{ margin-bottom:12px; font-size:14.5px; }
.footer ul li a:hover{ color: var(--cream); }
.footer address{ font-style:normal; }
.footer__social{
  display:flex; gap:12px; margin-top:20px;
}
.footer__social a{
  width:38px; height:38px; border-radius:50%;
  border:1px solid rgba(212,175,55,.3);
  display:flex; align-items:center; justify-content:center;
  transition: border-color .3s, background .3s;
}
.footer__social a:hover{ border-color: var(--gold); background: rgba(212,175,55,.08); }
.footer__social svg{ width:17px; height:17px; stroke: var(--gold); }
.footer__bottom{
  display:flex; justify-content:space-between; align-items:center;
  padding-top: 26px;
  font-size:12.5px;
  flex-wrap:wrap;
  gap:10px;
}
.footer__bottom a:hover{ color: var(--gold); }

/* ==========================================================================
   WhatsApp floating button
   ========================================================================== */
.fab-whatsapp{
  position:fixed;
  right: 24px; bottom: 24px;
  z-index: 900;
  width:58px; height:58px;
  border-radius:50%;
  background: linear-gradient(135deg, var(--gold), #b98f2a);
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 10px 30px -8px rgba(0,0,0,.5);
  transition: transform .3s var(--ease);
}
.fab-whatsapp:hover{ transform: scale(1.08); }
.fab-whatsapp svg{ width:26px; height:26px; fill:#1a1408; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px){
  .nav__links{ display:none; }
  .nav__burger{ display:flex; }
  .band__grid{ grid-template-columns: 1fr; }
  .band__item{ border-right:none; border-bottom:1px solid rgba(212,175,55,.14); }
  .services__grid{ grid-template-columns: repeat(2,1fr); }
  .values{ grid-template-columns: repeat(2,1fr); }
  .footer__top{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px){
  .services__grid{ grid-template-columns: 1fr; }
  .values{ grid-template-columns: 1fr; }
  .footer__top{ grid-template-columns: 1fr; }
  .hero__ctas .btn{ width:100%; }
  .hero__ctas{ flex-direction:column; }
  .footer__bottom{ flex-direction:column; align-items:flex-start; }
}