/* =========================
   KOSMOS — THEME.CSS (CLEAN)
   ========================= */

/* Base reset */
html{
  box-sizing: border-box;
  scroll-behavior: smooth;
}
*, *::before, *::after{ box-sizing: inherit; }

html, body{
  margin: 0;
  padding: 0;
}

:root{
  --kosmos-bg: #F8F6F2;
  --kosmos-ink: #1E1F23;
  --kosmos-blue: #003CFF;
  --kosmos-muted: rgba(30,31,35,0.70);
  --kosmos-line: rgba(30,31,35,0.12);

  --nav-h: 84px; /* altura aprox del nav fijo */
}

body{
  font-size: 1em;
  line-height: 1.65;
  font-weight: 400;
  font-family: "Noto Sans", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--kosmos-bg);
  color: var(--kosmos-ink);
}

/* Typography */
h1, h2, h3, h4, h5, h6{
  margin: 0 0 1.25rem 0;
  font-family: apparat-light, sans-serif;
  font-style: normal;
  font-weight: 100;
  letter-spacing: 0.02em;
}

h1{ font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1.1; }
h2{ font-size: clamp(1.8rem, 3vw, 2.5rem); line-height: 1.2; }
h3{ font-size: 1.25rem; line-height: 1.3; }

p{ margin: 0 0 1rem 0; }

/* Links */
a{
  color: var(--kosmos-ink);
  text-decoration: none;
  transition: .25s ease;
}
a:hover{ color: var(--kosmos-blue); }

/* Media */
img{
  width: 100%;
  height: auto;
  display: block;
}

/* Secciones sin márgenes raros */
section{ margin: 0; }

/* Layout */
.container{
  width: 100%;
  max-width: 76rem;
  margin: 0 auto;
  padding-left: clamp(18px, 4.5vw, 44px);
  padding-right: clamp(18px, 4.5vw, 44px);
}

@media (min-width: 64em){
  .container{ padding-left: 0; padding-right: 0; }
}

@media (max-width: 480px){
  .container{ padding-left: 22px; padding-right: 22px; }
}

/* Padding vertical de secciones */
#about,
#systems,
#portfolio,
#approach,
#contact{
  padding: 6rem 0;
}

/* Helpers */
hr{
  border: 0;
  border-top: 1px solid var(--kosmos-line);
  margin: 0;
}

.section-title{
  margin-bottom: 3.5rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* Si un elemento trae class center-xs, que realmente se centre */
.center-xs{ text-align: center; }
p.center-xs{ margin-left: auto; margin-right: auto; }

/* Look editorial: limitar ancho de párrafos */
.container p{
  max-width: 62ch;
}

/* Centrado editorial: cuando el contenedor está centrado, centra los párrafos también */
.center-xs p{
  margin-left: auto;
  margin-right: auto;
}

/* Al navegar por anchors (#), que no queden debajo del header fijo */
section[id]{ scroll-margin-top: calc(var(--nav-h) + 24px); }
#top{ scroll-margin-top: 0; }

/* =========================
   Buttons
   ========================= */
button{
  background-color: #000;
  border: none;
  border-radius: 3px;
  color: #fff;
  padding: 8px 37px;
  font-weight: 400;
  text-transform: uppercase;
  transition: all 0.35s ease;
  cursor: pointer;
  font-size: 0.8rem;
}

button:hover, button:focus{
  background-color: #fff;
  color: #000;
}

/* “light” = azul */
button.light{
  background-color: var(--kosmos-blue);
  color: #fff;
}
button.light:hover, button.light:focus{
  background-color: var(--kosmos-ink);
  color: #fff;
}

/* =========================
   NAV (Sticky + blur)
   ========================= */
.navigation-bar{
  position: fixed;
  z-index: 999;
  width: 100%;
  left: 0;
  top: 0;

  height: var(--nav-h);
  display: flex;
  align-items: center;

  background: rgba(0,0,0,0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo-link{
  display: inline-flex;
  align-items: center;
  padding: 1rem;
}

.navigation-bar .logo{
  max-width: 180px;
  display: block;
}

.navigation-bar nav{
  width: 100%;
}

.navigation-bar nav ul{
  margin: 0;
  padding: 0;
}

.navigation-bar nav ul li{
  display: inline-block;
}

.navigation-bar nav a{
  color: #fff;
  margin-right: 1rem;
  opacity: 0.9;
}
.navigation-bar nav a:hover{
  color: #fff;
  opacity: 1;
}

/* Responsive nav: oculta menú en pantallas pequeñas */
@media (max-width: 980px){
  .navigation-bar nav{ display: none; }
  .navigation-bar .logo{ max-width: 160px; }
}

/* =========================
   HERO INTRO
   ========================= */
/* Para que el header fijo no tape el hero */
.hero-intro{
  padding-top: calc(clamp(80px, 14vh, 140px) + var(--nav-h));
  padding-bottom: clamp(70px, 10vh, 130px);
}

.hero-text{
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: clamp(32px, 8vw, 140px);
  padding-right: clamp(24px, 4vw, 80px);
  text-align: left;
  position: relative;
  z-index: 2;
}

.hero-headline{ margin-bottom: 1.5rem; }

.hero-static{
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.hero-dynamic{
  color: var(--kosmos-blue);
  min-height: 1.2em;
  transition: opacity 0.3s ease;
}

/* Rotating word */
.rw-fade-out{ opacity: 0; }
.rw-fade-in{ opacity: 1; }

.hero-subtitle{
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.85;
  font-size: 0.85rem;
  margin: 1rem 0 0.75rem;
}

.hero-copy{
  max-width: 62ch;
  opacity: 0.85;
  margin-bottom: 1.25rem;
}

/* =========================
   HERO VIDEO
   ========================= */
.hero-video-section{
  margin-top: clamp(18px, 3vh, 34px);
  padding: 0;
  background: var(--kosmos-bg);
}

.hero-video-wrap{
  position: relative;
  width: 100%;
  height: clamp(340px, 60vh, 720px);
  overflow: hidden;
  background: #000;
}

.hero-video{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-video-overlay{
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(rgba(0,0,0,0.10), rgba(0,0,0,0.20));
}

/* =========================
   ABOUT (centrado premium)
   ========================= */
#about .container{
  text-align: center;
}

#about .container p{
  margin-left: auto;
  margin-right: auto;
}

/* =========================
   SISTEMAS
   ========================= */
#systems .container{ text-align: center; }
#systems .container > p{ margin-left: auto; margin-right: auto; }

.services .icon-row{ padding: 30px 0; }

/* Icono + título */
.system-title{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

/* Tamaño del icono */
.system-icon{
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  display: inline-block;
}

/* =========================
   CTA
   ========================= */
.cta{
  background-color: #000;
  padding: 60px 0;
  color: #fff;
}
.cta .container{ text-align: center; }
.cta p{ margin-left: auto; margin-right: auto; }

/* =========================
   BLURBS
   ========================= */
.blurbs h3{ margin-bottom: 1rem; }

/* =========================
   FORMS
   ========================= */
input, textarea{
  background-color: #eee;
  width: 100%;
  padding: 1rem;
  border: 0;
  border-radius: 3px;
}

[type="submit"]{
  -webkit-appearance: button;
  background-color: #000;
  color: #fff;
  cursor: pointer;
  transition: background 0.35s ease, color 0.35s ease;
}

[type="submit"]:hover{
  background-color: #fff;
  color: #000;
}

/* =========================
   PORTFOLIO — REEL MOSAIC
   ========================= */
.case-card{
  display: block;
  width: 100%;
}

.case-media{
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  aspect-ratio: 4 / 3;
  background: var(--kosmos-ink);
  transform: translateY(0);
  transition: transform 200ms ease;
}

/* Fallback para navegadores sin aspect-ratio */
@supports not (aspect-ratio: 4 / 3){
  .case-media{
    height: 0;
    padding-top: 75%;
  }
  .reel{
    position: absolute;
    inset: 0;
  }
}

.reel{
  position: relative;
  width: 100%;
  height: 100%;
}

.reel-frame{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 250ms ease;
}

.reel-frame:first-child{ opacity: 1; }

.case-card:hover .case-media{
  transform: translateY(-2px);
}

.case-card:focus-visible{
  outline: 2px solid var(--kosmos-blue);
  outline-offset: 4px;
}

/* =========================
   FOOTER — centrado real
   ========================= */
.kosmos-footer{
  background-color: #eee;
  padding: 4rem 0;
}

.kosmos-footer .container{
  display: flex;
  justify-content: center;
}

.footer-brand{
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-logo{
  width: 190px;
  max-width: 60vw;
  height: auto;
  display: block;
}

.footer-copy{
  margin: 1rem 0 0;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Redes centradas debajo */
.footer-social{
  margin-top: 1.25rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-social a{
  color: var(--kosmos-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0.9;
  transition: transform .2s ease, opacity .2s ease, color .25s ease;
}

.footer-social a:hover{
  color: var(--kosmos-blue);
  transform: translateY(-2px);
  opacity: 1;
}

.social-icon{
  width: 20px;
  height: 20px;
  display: block;
  fill: currentColor;
}

/* =========================
   Animación fade-in (si la usas)
   ========================= */
@keyframes fade-in{
  0%{ opacity: 0; }
  100%{ opacity: 1; }
}
.fade-in{
  animation: fade-in 1.2s cubic-bezier(0.390, 0.575, 0.565, 1.000) both;
}