/* =========================================================================
   ÁNGULO NORTE — style.css
   Identidad: negro / blanco / gris. Elegante, minimalista, glassmorphism sutil.
   ========================================================================= */

:root{
  --black:        #08090a;
  --black-soft:   #0f1012;
  --gray-900:     #16171a;
  --gray-800:     #1e2023;
  --gray-700:     #2a2c30;
  --gray-600:     #3c3f44;
  --gray-400:     #7a7d84;
  --gray-300:     #a6a8ad;
  --white-soft:   #e9e9ec;
  --white:        #f7f7f8;
  --glass-bg:     rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.09);
  --glow:         rgba(210,220,255,0.10);
  --shadow-soft:  0 20px 60px rgba(0,0,0,0.45);
  --radius:       14px;
  --radius-sm:    8px;
  --ff-display:   'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
  --ff-body:      'Inter', 'Helvetica Neue', Arial, sans-serif;
  --ease:         cubic-bezier(.16,.84,.44,1);
  --dur:          .7s;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--black);
  color:var(--white-soft);
  font-family:var(--ff-body);
  font-weight:400;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,video{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{ font-family:var(--ff-display); font-weight:600; margin:0 0 .5em; letter-spacing:-0.01em; color:var(--white); }
p{ margin:0 0 1em; color:var(--gray-300); }
.container{ width:100%; max-width:1240px; margin:0 auto; padding:0 24px; }
code{ background:var(--gray-800); padding:2px 6px; border-radius:4px; font-size:.85em; color:var(--white-soft); }

.skip-link{
  position:absolute; left:-999px; top:0; background:var(--white); color:var(--black);
  padding:10px 16px; z-index:9999; border-radius:0 0 8px 0;
}
.skip-link:focus{ left:0; }

/* ---------- Glassmorphism helper ---------- */
.glass{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-radius:var(--radius);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:14px 30px; font-family:var(--ff-display); font-weight:600;
  font-size:.82rem; letter-spacing:.08em; text-transform:uppercase;
  border-radius:999px; transition:transform .35s var(--ease), background .35s var(--ease), border-color .35s var(--ease), color .35s var(--ease);
  border:1px solid transparent; cursor:pointer;
}
.btn-primary{ background:var(--white); color:var(--black); }
.btn-primary:hover{ transform:translateY(-3px); background:var(--white-soft); box-shadow:0 10px 30px var(--glow); }
.btn-outline{ border-color:var(--gray-600); color:var(--white-soft); background:transparent; }
.btn-outline:hover{ border-color:var(--white-soft); transform:translateY(-3px); }

.eyebrow{
  font-family:var(--ff-display); text-transform:uppercase; letter-spacing:.22em;
  font-size:.72rem; color:var(--gray-400); margin:0 0 12px;
}

/* ---------- Reveal animations ---------- */
.reveal{ opacity:0; transform:translateY(28px); transition:opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }
.reveal-delay-1.is-visible{ transition-delay:.08s; }
.reveal-delay-2.is-visible{ transition-delay:.16s; }
.reveal-delay-3.is-visible{ transition-delay:.24s; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
  .reveal{ opacity:1; transform:none; }
}

/* ---------- Header ---------- */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:1000;
  padding:18px 0; transition:background .4s var(--ease), padding .4s var(--ease), border-color .4s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(8,9,10,0.72); backdrop-filter:blur(14px);
  padding:12px 0; border-color:var(--glass-border);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; }
.brand-logo{ height:38px; width:auto; }
.main-nav{ display:flex; align-items:center; gap:36px; }
.main-nav ul{ display:flex; gap:30px; }
.main-nav a{ font-size:.86rem; letter-spacing:.03em; color:var(--white-soft); position:relative; }
.main-nav ul a::after{
  content:''; position:absolute; left:0; bottom:-6px; width:0; height:1px; background:var(--white);
  transition:width .35s var(--ease);
}
.main-nav ul a:hover::after{ width:100%; }
.nav-cta{ padding:10px 22px; }
.menu-toggle{
  display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px;
}
.menu-toggle span{ width:24px; height:2px; background:var(--white); transition:transform .3s var(--ease), opacity .3s var(--ease); }

@media (max-width: 900px){
  .menu-toggle{ display:flex; }
  .main-nav{
    position:fixed; inset:0 0 0 30%; top:0; height:100vh; flex-direction:column; align-items:flex-start;
    justify-content:center; gap:40px; background:rgba(8,9,10,0.98); backdrop-filter:blur(20px);
    padding:40px; transform:translateX(100%); transition:transform .45s var(--ease);
    border-left:1px solid var(--glass-border);
  }
  .main-nav.is-open{ transform:translateX(0); }
  .main-nav ul{ flex-direction:column; gap:22px; }
  .main-nav ul a{ font-size:1.3rem; }
  .menu-toggle.is-active span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .menu-toggle.is-active span:nth-child(2){ opacity:0; }
  .menu-toggle.is-active span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }
}

/* ---------- HERO ---------- */
.hero{ position:relative; min-height:100vh; display:flex; align-items:flex-end; overflow:hidden; }
.hero-media{ position:absolute; inset:0; z-index:0; background:var(--black); }
.hero-video, .hero-fallback-img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.hero-video{ z-index:1; }
.hero-fallback-img{ z-index:0; opacity:.55; }
.hero-overlay{
  position:absolute; inset:0; z-index:2;
  background:
    radial-gradient(ellipse at 30% 20%, var(--glow), transparent 55%),
    linear-gradient(to top, rgba(4,5,6,0.96) 0%, rgba(4,5,6,var(--_o, .55)) 45%, rgba(4,5,6,0.35) 100%);
}
.hero-overlay{ --_o: calc(var(--overlay-opacity, 60) / 100); }
.hero-content{ position:relative; z-index:3; padding-bottom:120px; padding-top:160px; }
.hero-title{
  font-size:clamp(3rem, 9vw, 6.2rem); line-height:.95; margin:0 0 .25em;
  letter-spacing:-0.02em;
}
.hero-subtitle{ font-size:clamp(1.1rem,2.4vw,1.5rem); color:var(--white-soft); font-family:var(--ff-display); font-weight:500; margin-bottom:.4em; }
.hero-description{ max-width:560px; color:var(--gray-300); font-size:1.02rem; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; margin-top:20px; }
.hero-scroll-cue{
  position:absolute; bottom:28px; left:50%; transform:translateX(-50%); z-index:3;
  width:26px; height:42px; border:1px solid var(--glass-border); border-radius:20px;
}
.hero-scroll-cue span{
  display:block; width:4px; height:8px; background:var(--white-soft); border-radius:2px; margin:8px auto 0;
  animation:scrollcue 1.8s infinite var(--ease);
}
@keyframes scrollcue{ 0%{ transform:translateY(0); opacity:1;} 70%{ transform:translateY(14px); opacity:0;} 100%{opacity:0;} }

/* ---------- Section generic ---------- */
section{ padding:120px 0; position:relative; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head h2{ font-size:clamp(2rem,4vw,2.9rem); }
.empty-note{ color:var(--gray-400); font-style:italic; }

/* ---------- Intro ---------- */
.intro{ background:var(--black-soft); border-top:1px solid var(--gray-800); border-bottom:1px solid var(--gray-800); }
.intro-grid{ display:grid; grid-template-columns:1.3fr 1fr; gap:70px; align-items:center; }
.intro-text h2{ font-size:clamp(1.8rem,3.4vw,2.6rem); }
.intro-body{ font-size:1.05rem; }
.intro-stats{ display:grid; gap:20px; }
.stat-card{
  padding:26px 28px; border:1px solid var(--gray-800); border-radius:var(--radius);
  background:linear-gradient(160deg, var(--glass-bg), transparent);
  transition:transform .4s var(--ease), border-color .4s var(--ease);
}
.stat-card:hover{ transform:translateY(-4px); border-color:var(--gray-600); }
.stat-number{ display:block; font-family:var(--ff-display); font-size:2.2rem; color:var(--white); font-weight:700; }
.stat-label{ color:var(--gray-400); font-size:.85rem; }
.stat-label em{ font-style:normal; opacity:.6; }

@media (max-width:900px){ .intro-grid{ grid-template-columns:1fr; } }

/* ---------- Services ---------- */
.service-group{ margin-bottom:60px; }
.service-group:last-child{ margin-bottom:0; }
.service-group-title{
  font-size:1.05rem; text-transform:uppercase; letter-spacing:.1em; color:var(--gray-300);
  padding-bottom:14px; border-bottom:1px solid var(--gray-800); margin-bottom:28px;
}
.service-cards{ display:grid; grid-template-columns:repeat(auto-fill, minmax(270px,1fr)); gap:22px; }
.service-card{
  padding:30px 26px; transition:transform .45s var(--ease), border-color .45s var(--ease), background .45s var(--ease);
}
.service-card:hover{ transform:translateY(-6px); border-color:var(--gray-600); background:rgba(255,255,255,0.06); }
.service-card h4{ font-size:1.15rem; margin-bottom:.4em; }
.service-card p{ font-size:.92rem; }
.service-card-img{ width:100%; height:140px; border-radius:var(--radius-sm); background-size:cover; background-position:center; margin-bottom:18px; }
.service-icon{
  width:46px; height:46px; border-radius:50%; margin-bottom:18px;
  background:var(--gray-800); border:1px solid var(--gray-700);
  position:relative;
}
.service-icon::after{
  content:''; position:absolute; inset:14px; border:1.5px solid var(--white-soft); border-radius:2px;
}
.service-features{ margin-top:14px; display:flex; flex-direction:column; gap:6px; }
.service-features li{ font-size:.82rem; color:var(--gray-400); padding-left:16px; position:relative; }
.service-features li::before{ content:'—'; position:absolute; left:0; color:var(--gray-600); }

/* ---------- Featured video ---------- */
.featured-video{ background:var(--black-soft); }
.featured-video-frame{ overflow:hidden; padding:10px; }
.featured-video-frame video{ width:100%; border-radius:calc(var(--radius) - 6px); max-height:640px; object-fit:cover; }
.featured-video-desc{ margin-top:22px; max-width:680px; }

/* ---------- Portfolio ---------- */
.portfolio-filters{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:40px; }
.filter-btn{
  padding:9px 20px; border-radius:999px; border:1px solid var(--gray-700); background:transparent;
  color:var(--gray-300); font-size:.82rem; letter-spacing:.03em; cursor:pointer;
  transition:all .35s var(--ease);
}
.filter-btn:hover{ border-color:var(--gray-400); color:var(--white); }
.filter-btn.is-active{ background:var(--white); color:var(--black); border-color:var(--white); }

.portfolio-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(320px,1fr)); gap:26px; }
.portfolio-card{
  position:relative; border-radius:var(--radius); overflow:hidden; border:1px solid var(--gray-800);
  transition:transform .5s var(--ease), border-color .5s var(--ease);
  display:block;
}
.portfolio-card.is-hidden{ display:none; }
.portfolio-card:hover{ transform:translateY(-6px); border-color:var(--gray-600); }
.portfolio-card-media{ aspect-ratio:4/3; overflow:hidden; background:var(--gray-900); }
.portfolio-card-media img{ width:100%; height:100%; object-fit:cover; transition:transform .8s var(--ease); }
.portfolio-card:hover .portfolio-card-media img{ transform:scale(1.08); }
.portfolio-placeholder{ width:100%; height:100%; background:linear-gradient(135deg, var(--gray-800), var(--gray-900)); }
.portfolio-card-info{ padding:20px 22px 24px; }
.portfolio-cat{ font-size:.7rem; text-transform:uppercase; letter-spacing:.12em; color:var(--gray-400); }
.portfolio-card-info h3{ font-size:1.15rem; margin:.35em 0 .2em; }
.portfolio-client{ font-size:.82rem; color:var(--gray-400); }

/* ---------- Videos ---------- */
.videos-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(300px,1fr)); gap:24px; }
.video-card{ overflow:hidden; }
.video-card-media{ position:relative; aspect-ratio:16/9; background:var(--gray-900); overflow:hidden; }
.video-card-media video{ width:100%; height:100%; object-fit:cover; }
.video-play-btn{
  position:absolute; inset:0; margin:auto; width:56px; height:56px; border-radius:50%;
  background:rgba(255,255,255,.92); color:var(--black); border:none; cursor:pointer;
  display:flex; align-items:center; justify-content:center; transition:transform .3s var(--ease);
}
.video-play-btn:hover{ transform:scale(1.1); }
.video-card-info{ padding:18px 20px; }
.video-card-info h4{ font-size:1.02rem; margin:.3em 0; }
.video-card-info p{ font-size:.86rem; }

/* ---------- Clients ---------- */
.clients-section{ background:var(--black-soft); }
.clients-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(160px,1fr)); gap:18px; }
.client-card{
  position:relative; aspect-ratio:3/2; display:flex; align-items:center; justify-content:center;
  padding:20px; transition:transform .4s var(--ease), border-color .4s var(--ease);
}
.client-card:hover{ transform:translateY(-4px); border-color:var(--gray-600); }
.client-card img{ max-height:52px; max-width:100%; filter:grayscale(1) brightness(1.6); opacity:.75; transition:opacity .3s var(--ease), filter .3s var(--ease); }
.client-card:hover img{ opacity:1; filter:grayscale(0) brightness(1); }
.client-name-fallback{ font-family:var(--ff-display); color:var(--gray-300); text-align:center; }
.client-overlay-link{ position:absolute; inset:0; }

/* ---------- Team ---------- */
.team-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(240px,1fr)); gap:32px; }
.team-card{ text-align:left; }
.team-photo{ aspect-ratio:1; border-radius:var(--radius); overflow:hidden; margin-bottom:18px; background:var(--gray-900); }
.team-photo img{ width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease); }
.team-card:hover .team-photo img{ transform:scale(1.06); }
.team-photo-placeholder{
  width:100%; height:100%; display:flex; align-items:center; justify-content:center;
  font-family:var(--ff-display); font-size:3rem; color:var(--gray-600); background:var(--gray-800);
}
.team-card h3{ font-size:1.1rem; margin-bottom:.15em; }
.team-position{ color:var(--gray-400); font-size:.85rem; text-transform:uppercase; letter-spacing:.06em; margin-bottom:.6em; }
.team-desc{ font-size:.9rem; }
.team-social{ display:flex; gap:14px; margin-top:10px; }
.team-social a{ font-size:.78rem; color:var(--gray-400); border-bottom:1px solid var(--gray-700); }
.team-social a:hover{ color:var(--white); border-color:var(--white); }

/* ---------- WhatsApp CTA section ---------- */
.whatsapp-section{ padding:0 0 120px; }
.whatsapp-inner{
  padding:56px; display:flex; justify-content:space-between; align-items:center; gap:40px; flex-wrap:wrap;
  background:linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
}
.whatsapp-text{ max-width:520px; }
.whatsapp-text h2{ font-size:clamp(1.6rem,3vw,2.2rem); }
.whatsapp-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--black-soft); border-top:1px solid var(--gray-800); padding-top:90px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:50px; padding-bottom:60px; }
.footer-logo{ height:34px; margin-bottom:16px; }
.footer-tagline{ color:var(--gray-400); font-size:.9rem; max-width:260px; }
.social-row{ display:flex; gap:12px; margin-top:20px; }
.social-icon{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--gray-700); display:flex;
  align-items:center; justify-content:center; color:var(--gray-300); transition:all .3s var(--ease);
}
.social-icon:hover{ border-color:var(--white); color:var(--white); transform:translateY(-3px); }
.footer-col h4{ font-size:.85rem; text-transform:uppercase; letter-spacing:.08em; color:var(--gray-300); margin-bottom:18px; }
.footer-contact li{ font-size:.88rem; color:var(--gray-400); margin-bottom:10px; }
.footer-contact span{ color:var(--gray-300); }
.footer-links li{ margin-bottom:10px; }
.footer-links a{ font-size:.88rem; color:var(--gray-400); }
.footer-links a:hover{ color:var(--white); }
.footer-bottom{ border-top:1px solid var(--gray-800); padding:24px 0; }
.footer-bottom-inner p{ margin:0; font-size:.8rem; color:var(--gray-600); text-align:center; }

@media (max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }

/* ---------- WhatsApp floating button ---------- */
.whatsapp-float{
  position:fixed; bottom:26px; right:26px; z-index:900; width:58px; height:58px; border-radius:50%;
  background:#1ea952; color:#fff; display:flex; align-items:center; justify-content:center;
  box-shadow:var(--shadow-soft); transition:transform .3s var(--ease);
}
.whatsapp-float:hover{ transform:scale(1.08); }

/* ---------- Project detail page ---------- */
.project-detail{ padding-top:160px; }
.back-link{ display:inline-block; margin-bottom:30px; color:var(--gray-400); font-size:.9rem; }
.back-link:hover{ color:var(--white); }
.project-head h1{ font-size:clamp(2.2rem,5vw,3.4rem); }
.project-meta{ display:flex; gap:24px; flex-wrap:wrap; color:var(--gray-400); font-size:.9rem; margin-top:14px; }
.project-meta strong{ color:var(--gray-300); }
.project-video, .project-main-image{ margin:40px 0; border-radius:var(--radius); overflow:hidden; }
.project-video video, .project-main-image img{ width:100%; }
.project-description{ max-width:720px; font-size:1.05rem; }
.project-gallery{ display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:16px; margin:40px 0; }
.gallery-item{ border-radius:var(--radius-sm); overflow:hidden; aspect-ratio:4/3; }
.gallery-item img{ width:100%; height:100%; object-fit:cover; }
.project-cta{ margin-top:50px; }