/* ==========================================================================
   Kuere — Design system CSS
   Fuentes: Instrument Serif (display) + Geist (UI/body)
   Paleta: fondo casi negro + acento lima
   ========================================================================== */

:root{
  --bg: #121212;
  --surface: #1c1c1e;
  --surface-2: #28282a;
  --surface-border: #2c2c2e;
  --nav-bg: #262629;
  --accent: #d2f53c;
  --accent-dark: #a9c72e;
  --text: #f5f5f5;
  --muted: #a1a1aa;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 8px;
}

*{ scroll-behavior: smooth; }

html, body{
  background: var(--bg);
  color: var(--text);
}

body{
  font-family: 'Geist', ui-sans-serif, system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, .font-display{
  font-family: 'Instrument Serif', Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

::selection{
  background: var(--accent);
  color: #121212;
}

/* Scrollbar */
::-webkit-scrollbar{ width: 10px; height: 10px; }
::-webkit-scrollbar-track{ background: var(--bg); }
::-webkit-scrollbar-thumb{ background: var(--surface-2); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover{ background: var(--accent-dark); }

/* ---------------------------------------------------------------------- */
/* Navbar                                                                  */
/* ---------------------------------------------------------------------- */
#site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  /*background: rgba(18, 18, 18, 0.35);*/
  background: #262629;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: background-color .35s ease, backdrop-filter .35s ease, border-color .35s ease, box-shadow .35s ease;
}

#site-header.is-scrolled{
  background: rgba(18, 18, 18, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: rgba(255,255,255,0.08);
  box-shadow: 0 10px 30px -15px rgba(0,0,0,0.6);
}

.nav-link{
  position: relative;
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  opacity: .85;
  transition: opacity .2s ease, color .2s ease;
}
.nav-link::after{
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0%; height: 1.5px;
  background: var(--accent);
  transition: width .25s ease;
}
.nav-link:hover{ opacity: 1; }
.nav-link:hover::after,
.nav-link.is-active::after{ width: 100%; }
.nav-link.is-active{ color: var(--accent); opacity: 1; }

/* ---------------------------------------------------------------------- */
/* Buttons                                                                 */
/* ---------------------------------------------------------------------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Geist', sans-serif;
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-sm);
  padding: 14px 28px;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease, color .2s ease;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn:active{ transform: translateY(1px) scale(.98); }

.btn-primary{
  background: var(--accent);
  color: #121212;
}
.btn-primary:hover{
  background: #e2ff5c;
  box-shadow: 0 8px 24px -8px rgba(210,245,60,0.55);
  transform: translateY(-2px);
}

.btn-outline{
  background: transparent;
  color: var(--text);
  border-color: rgba(255,255,255,0.18);
}
.btn-outline:hover{
  border-color: rgba(255,255,255,0.4);
  background: rgba(255,255,255,0.04);
  transform: translateY(-2px);
}

.btn-sm{ padding: 10px 18px; font-size: 14px; }
.btn-block{ width: 100%; }

/* ---------------------------------------------------------------------- */
/* Badges / Eyebrows                                                       */
/* ---------------------------------------------------------------------- */
.badge{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(210,245,60,0.35);
  background: rgba(210,245,60,0.06);
  padding: 6px 14px;
  border-radius: 999px;
}

.badge-solid{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--bg);
  border: 1px solid var(--accent);
  background: var(--accent);
  padding: 6px 14px;
  border-radius: 999px;
}

.eyebrow{
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

/* ---------------------------------------------------------------------- */
/* Cards                                                                   */
/* ---------------------------------------------------------------------- */
.card{
  background: var(--surface-2);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.card:hover{
  transform: translateY(-6px);
  border-color: rgba(255,255,255,0.16);
  box-shadow: 0 24px 48px -24px rgba(0,0,0,0.55);
}

.card-highlight{
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(210,245,60,0.4), 0 30px 60px -30px rgba(210,245,60,0.35);
}
.card-highlight:hover{
  box-shadow: 0 0 0 1px rgba(210,245,60,0.6), 0 30px 60px -20px rgba(210,245,60,0.45);
}

/* ---------------------------------------------------------------------- */
/* Marquee ticker                                                          */
/* ---------------------------------------------------------------------- */
.marquee{
  background: var(--accent);
  color: #121212;
  overflow: hidden;
  white-space: nowrap;
  position: relative;
}
.marquee__track{
  display: inline-flex;
  align-items: center;
  animation: marquee-scroll 26s linear infinite;
  will-change: transform;
}
.marquee:hover .marquee__track{ animation-play-state: paused; }
.marquee__item{
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 22px 28px;
}
.marquee__dot{ width: 6px; height: 6px; border-radius: 999px; background: #121212; margin-right: 10px; opacity: .55; }

@keyframes marquee-scroll{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* ---------------------------------------------------------------------- */
/* Reveal on scroll                                                        */
/* ---------------------------------------------------------------------- */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s cubic-bezier(.16,.8,.24,1), transform .7s cubic-bezier(.16,.8,.24,1);
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1{ transition-delay: .08s; }
.reveal-delay-2{ transition-delay: .16s; }
.reveal-delay-3{ transition-delay: .24s; }
.reveal-delay-4{ transition-delay: .32s; }
.reveal-delay-5{ transition-delay: .4s; }

/* Floating ambient blobs */
.blob{
  position: absolute;
  border-radius: 999px;
  filter: blur(90px);
  opacity: .18;
  pointer-events: none;
  animation: blob-float 12s ease-in-out infinite;
}
@keyframes blob-float{
  0%, 100%{ transform: translate(0,0) scale(1); }
  50%{ transform: translate(20px,-30px) scale(1.08); }
}

/* Number count-up target starts blank via JS */
.count-up{ font-variant-numeric: tabular-nums; }

/* Gradient text accent */
.text-gradient-accent{
  background: linear-gradient(90deg, #d2f53c, #8fe3c9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Mobile menu */
#mobile-menu{
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}
#mobile-menu.is-open{
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* Hamburger animation */
.hamburger span{ transition: transform .3s ease, opacity .3s ease; }
#nav-toggle.is-open .hamburger span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
#nav-toggle.is-open .hamburger span:nth-child(2){ opacity: 0; }
#nav-toggle.is-open .hamburger span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

/* Phone / app mockup */
.mockup-frame{
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,0.08);
  background: #0c0c0d;
  box-shadow: 0 40px 80px -30px rgba(0,0,0,0.7);
}

/* Utility: subtle grid background */
.bg-grid{
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* Simple fade-in for page load */
@keyframes page-fade-in{ from{ opacity: 0; } to{ opacity: 1; } }
body{ animation: page-fade-in .4s ease; }

/* Focus visibility for accessibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Form fields */
.field{
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--text);
  font-size: 14px;
  transition: border-color .2s ease, background-color .2s ease;
}
.field::placeholder{ color: var(--muted); }
.field:focus{ border-color: var(--accent); background: #201f16; outline: none; }