/* =========================================================
   FRIEND KILLER — landing page
   Sistema visual: cámara de vigilancia nocturna / HUD de caza
   ========================================================= */

:root{
  /* --- color --- */
  --void:        #0A0C0A;   /* fondo, negro con tinte verdoso de visión nocturna */
  --panel:       #12150F;
  --panel-2:     #191D16;
  --line:        #262B22;
  --line-soft:   #1B1F19;
  --paper:       #ECEFE6;
  --fog:         #8D9689;
  --fog-dim:     #5C6459;

  --signal-red:      #FF3049;  /* REC / peligro / CTA principal */
  --signal-red-dim:  #7A1420;
  --signal-amber:    #FFB92E;  /* zona / aviso / cinta de peligro */
  --signal-amber-dim:#5C4113;

  /* --- tipografia --- */
  --f-display: 'Rajdhani', 'Arial Narrow', sans-serif;
  --f-mono:    'IBM Plex Mono', 'Courier New', monospace;
  --f-body:    'Inter', -apple-system, 'Segoe UI', sans-serif;

  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--void);
  color:var(--paper);
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

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

:focus-visible{
  outline:2px solid var(--signal-amber);
  outline-offset:3px;
}

.wrap{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

.eyebrow{
  font-family:var(--f-mono);
  font-size:12px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--signal-amber);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.eyebrow::before{
  content:"";
  width:6px; height:6px;
  background:var(--signal-amber);
  border-radius:50%;
  flex:none;
}

h1,h2,h3{
  font-family:var(--f-display);
  font-weight:700;
  letter-spacing:0.01em;
  text-transform:uppercase;
  color:var(--paper);
}

.section-title{
  font-size:clamp(28px,4.5vw,44px);
  line-height:1.05;
}
.section-kicker{
  margin-bottom:14px;
}
.section-head{
  max-width:640px;
  margin-bottom:52px;
}
.section-head p{
  margin-top:16px;
  color:var(--fog);
  font-size:16px;
  max-width:52ch;
}

section{ position:relative; padding:96px 0; }
.section-alt{ background:var(--panel); border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft); }

/* =========================
   BOTONES
   ========================= */
.btn{
  font-family:var(--f-mono);
  font-size:13px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:15px 26px;
  border-radius:2px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, background .15s ease, border-color .15s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-1px); }
.btn-primary{
  background:var(--signal-red);
  color:#180307;
  font-weight:700;
}
.btn-primary:hover{ background:#ff4a5f; }
.btn-outline{
  background:transparent;
  color:var(--paper);
  border-color:var(--line);
}
.btn-outline:hover{ border-color:var(--fog); }
.btn-discord{
  background:#5865F2;
  color:#fff;
  font-weight:700;
}
.btn-discord:hover{ background:#6b76ff; }

.cta-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
}

/* =========================
   MARCO CON ESQUINAS (viewfinder)
   ========================= */
.bracket-frame{
  position:relative;
}
.bracket-frame::before,
.bracket-frame::after,
.bracket-frame .bk-tr,
.bracket-frame .bk-bl{
  content:"";
  position:absolute;
  width:16px; height:16px;
  border:2px solid var(--signal-amber);
  opacity:.85;
}
.bracket-frame::before{ top:-1px; left:-1px; border-right:none; border-bottom:none; }
.bracket-frame::after{ bottom:-1px; right:-1px; border-left:none; border-top:none; }

/* =========================
   HEADER
   ========================= */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  background:rgba(10,12,10,0.86);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--f-display);
  font-weight:700;
  font-size:19px;
  letter-spacing:0.03em;
  text-transform:uppercase;
}
.logo-mark{
  width:28px;height:28px;
  flex:none;
  background-image:url('logo.png');
  background-size:cover;
  background-position:center;
  border-radius:6px;
}
.beta-tag{
  font-family:var(--f-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:var(--void);
  background:var(--signal-amber);
  padding:3px 6px;
  border-radius:2px;
  transform:translateY(-1px);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
  font-family:var(--f-mono);
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:.04em;
}
.nav-links a{ color:var(--fog); transition:color .15s ease; }
.nav-links a:hover{ color:var(--paper); }
.nav-cta{ display:flex; align-items:center; gap:14px; }
.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--line);
  color:var(--paper);
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  display:block;
  width:18px;height:2px;
  background:var(--paper);
  position:relative;
  transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle span::before{ position:absolute; top:-6px; }
.nav-toggle span::after{ position:absolute; top:6px; }

/* =========================
   HERO
   ========================= */
.hero{
  min-height:100svh;
  display:flex;
  align-items:center;
  padding-top:120px;
  padding-bottom:64px;
  overflow:hidden;
}
.viewfinder{
  position:relative;
  border:1px solid var(--line);
  padding:56px 28px;
  background:
    radial-gradient(circle at 50% 30%, rgba(255,48,73,0.07), transparent 60%),
    var(--panel);
}
.viewfinder::before,
.viewfinder::after{
  content:"";
  position:absolute;
  width:28px; height:28px;
  border:2px solid var(--signal-red);
  opacity:.9;
}
.viewfinder::before{ top:14px; left:14px; border-right:none; border-bottom:none; }
.viewfinder::after{ bottom:14px; right:14px; border-left:none; border-top:none; }
.vf-corner-tr,.vf-corner-bl{
  position:absolute;
  width:28px; height:28px;
  border:2px solid var(--signal-red);
  opacity:.9;
}
.vf-corner-tr{ top:14px; right:14px; border-left:none; border-bottom:none; }
.vf-corner-bl{ bottom:14px; left:14px; border-right:none; border-top:none; }

.hud-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--fog);
  margin-bottom:40px;
}
.hud-rec{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--signal-red);
}
.rec-dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--signal-red);
  animation:blink 1.4s steps(1) infinite;
}
@keyframes blink{ 50%{ opacity:.15; } }

.hero-content{
  max-width:760px;
  margin:0 auto;
  text-align:center;
}
.hero-content h1{
  font-size:clamp(38px,6.4vw,74px);
  line-height:0.98;
  margin:22px 0 22px;
}
.hero-content h1 em{
  font-style:normal;
  color:var(--signal-red);
}
.hero-sub{
  font-size:17px;
  color:var(--fog);
  max-width:56ch;
  margin:0 auto 34px;
}
.hero .cta-row{ justify-content:center; }

.hud-bottom{
  margin-top:44px;
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  justify-content:center;
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--fog-dim);
}
.hud-bottom b{ color:var(--paper); font-weight:600; }

.radar{
  position:relative;
  width:16px;height:16px;
  border-radius:50%;
  border:1px solid var(--signal-amber);
}
.radar::after{
  content:"";
  position:absolute;
  inset:-6px;
  border-radius:50%;
  border:1px solid var(--signal-amber);
  opacity:.5;
  animation:zoneshrink 3.2s ease-in-out infinite;
}
@keyframes zoneshrink{
  0%{ transform:scale(1.6); opacity:.7; }
  100%{ transform:scale(0.3); opacity:0; }
}
.hud-item{ display:inline-flex; align-items:center; gap:8px; }

.scanlines{
  pointer-events:none;
  position:absolute; inset:0;
  background:repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.025) 0px,
    rgba(255,255,255,0.025) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode:overlay;
}

/* =========================
   FEATURES (f/01 f/02 f/03)
   ========================= */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line-soft);
  border:1px solid var(--line-soft);
}
.feature-card{
  background:var(--void);
  padding:40px 32px;
  position:relative;
}
.feature-stop{
  font-family:var(--f-mono);
  color:var(--signal-amber);
  font-size:13px;
  letter-spacing:.08em;
  margin-bottom:22px;
  display:block;
}
.feature-icon{
  width:40px;height:40px;
  margin-bottom:24px;
  color:var(--signal-red);
}
.feature-card h3{
  font-size:20px;
  margin-bottom:14px;
}
.feature-card p{
  color:var(--fog);
  font-size:15px;
}

/* =========================
   BETA PANEL
   ========================= */
.hazard-strip{
  height:10px;
  background:repeating-linear-gradient(
    -45deg,
    var(--signal-amber),
    var(--signal-amber) 12px,
    #0A0C0A 12px,
    #0A0C0A 24px
  );
}
.beta-panel{
  background:var(--panel);
  border:1px solid var(--signal-amber-dim);
  border-top:none;
  border-bottom:none;
  padding:64px 0 60px;
}
.beta-inner{ max-width:760px; }
.beta-inner h2{
  font-size:clamp(26px,4vw,38px);
  color:var(--signal-amber);
  margin-bottom:20px;
}
.beta-inner > p{
  color:var(--fog);
  margin-bottom:34px;
  max-width:60ch;
}
.beta-list{ display:flex; flex-direction:column; gap:18px; }
.beta-list li{
  display:flex;
  gap:14px;
  align-items:flex-start;
  font-size:15px;
  color:var(--paper);
}
.beta-list li::before{
  content:"";
  flex:none;
  width:8px;height:8px;
  margin-top:7px;
  background:var(--signal-amber);
}
.beta-list li span{ color:var(--fog); }
.beta-list li strong{ color:var(--paper); }

/* =========================
   DOWNLOAD
   ========================= */
.download-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
  margin-bottom:20px;
}
.store-card{
  background:var(--panel-2);
  border:1px solid var(--line);
  padding:28px 26px;
  display:flex;
  align-items:center;
  gap:18px;
  transition:border-color .15s ease, transform .15s ease;
}
.store-card:hover{ border-color:var(--fog); transform:translateY(-2px); }
.store-icon{ width:34px; height:34px; flex:none; color:var(--paper); }
.store-copy small{
  display:block;
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--signal-amber);
  margin-bottom:4px;
}
.store-copy strong{
  display:block;
  font-family:var(--f-display);
  font-size:19px;
  text-transform:uppercase;
  letter-spacing:.02em;
  margin-bottom:4px;
}
.store-copy p{ color:var(--fog-dim); font-size:12.5px; margin:0; }

.discord-card{
  background:linear-gradient(135deg,#5865F2,#3941a8);
  padding:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-bottom:36px;
}
.discord-card h3{ font-size:24px; color:#fff; margin-bottom:8px; }
.discord-card p{ color:rgba(255,255,255,0.8); font-size:14.5px; max-width:44ch; }
.discord-icon{ width:30px;height:30px; }

.social-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.social-btn{
  width:46px;height:46px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  color:var(--fog);
  transition:color .15s ease, border-color .15s ease;
}
.social-btn:hover{ color:var(--paper); border-color:var(--fog); }
.social-btn svg{ width:19px;height:19px; }

.download-note{
  margin-top:28px;
  font-family:var(--f-mono);
  font-size:12px;
  color:var(--fog-dim);
  letter-spacing:.03em;
}

/* =========================
   FAQ
   ========================= */
.faq-list{ border-top:1px solid var(--line); }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%;
  background:none;
  border:none;
  color:var(--paper);
  text-align:left;
  padding:24px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-family:var(--f-display);
  font-size:17px;
  letter-spacing:.01em;
  text-transform:uppercase;
  cursor:pointer;
}
.faq-plus{
  position:relative;
  width:16px;height:16px;
  flex:none;
}
.faq-plus::before,.faq-plus::after{
  content:"";
  position:absolute;
  background:var(--signal-amber);
  transition:transform .2s ease;
}
.faq-plus::before{ width:100%; height:2px; top:7px; left:0; }
.faq-plus::after{ width:2px; height:100%; left:7px; top:0; }
.faq-item[data-open="true"] .faq-plus::after{ transform:scaleY(0); }
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a p{
  color:var(--fog);
  padding-bottom:24px;
  max-width:62ch;
  font-size:15px;
}

/* =========================
   FOOTER
   ========================= */
.site-footer{
  padding:60px 0 40px;
  border-top:1px solid var(--line-soft);
}
.footer-top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  flex-wrap:wrap;
  gap:32px;
  margin-bottom:40px;
}
.footer-brand .logo{ margin-bottom:10px; }
.footer-brand p{ color:var(--fog-dim); font-size:13.5px; max-width:38ch; }
.footer-links{
  display:flex;
  gap:56px;
  flex-wrap:wrap;
}
.footer-col h4{
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--fog-dim);
  margin-bottom:14px;
}
.footer-col a{
  display:block;
  color:var(--fog);
  font-size:14px;
  margin-bottom:10px;
  transition:color .15s ease;
}
.footer-col a:hover{ color:var(--paper); }
.footer-bottom{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding-top:24px;
  border-top:1px solid var(--line-soft);
  font-family:var(--f-mono);
  font-size:11.5px;
  color:var(--fog-dim);
}

/* =========================
   PAGINAS LEGALES (privacy/terms)
   ========================= */
.legal-main{ padding:150px 0 100px; }
.legal-main .wrap{ max-width:760px; }
.legal-main h1{ font-size:clamp(30px,5vw,44px); margin-bottom:8px; }
.legal-updated{
  font-family:var(--f-mono);
  font-size:12px;
  color:var(--fog-dim);
  margin-bottom:48px;
  display:block;
}
.legal-main h2{
  font-size:19px;
  margin-top:44px;
  margin-bottom:14px;
  color:var(--signal-amber);
}
.legal-main p, .legal-main li{
  color:var(--fog);
  font-size:15px;
  margin-bottom:14px;
}
.legal-main ul{ padding-left:20px; list-style:disc; }
.legal-callout{
  border:1px solid var(--signal-amber-dim);
  background:var(--panel);
  padding:20px 24px;
  margin:32px 0;
  font-size:14px;
  color:var(--fog);
}
.legal-callout strong{ color:var(--signal-amber); }

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width:900px){
  .feature-grid{ grid-template-columns:1fr; }
  .download-grid{ grid-template-columns:1fr; }
  .footer-top{ flex-direction:column; }
}

@media (max-width:760px){
  .nav-links{
    position:fixed;
    top:72px; left:0; right:0;
    background:var(--void);
    border-bottom:1px solid var(--line-soft);
    flex-direction:column;
    align-items:flex-start;
    padding:24px;
    gap:20px;
    transform:translateY(-120%);
    transition:transform .25s ease;
  }
  .nav-links.open{ transform:translateY(0); }
  .nav-toggle{ display:flex; }
  .nav-cta .btn-outline{ display:none; }
  .discord-card{ flex-direction:column; align-items:flex-start; }
  .hud-bottom{ gap:16px; }
  section{ padding:72px 0; }
}