/* =========================================================
   Favz Studio - estilos
   Paleta inspirada en las combinaciones de Sanzo Wada
   ("A Dictionary of Color Combinations"): violetas profundos
   sobre negro violáceo, con un acento amarillo verdoso
   complementario usado con moderación. Tonos adaptados a neón.
   ========================================================= */
:root {
  --black:      #0b0812;  /* negro violáceo (fondo) */
  --ink:        #130e1d;  /* superficie */
  --ink-2:      #1c1430;  /* superficie elevada */
  --line:       rgba(196, 140, 255, .14);
  --violet-deep:#3d1466;  /* violeta profundo */
  --violet:     #7a2ee0;  /* violeta medio */
  --neon:       #b44cff;  /* morado neón (principal) */
  --lilac:      #e3c6ff;  /* lila claro */
  --accent:     #d9f56b;  /* acento complementario (amarillo verdoso) */
  --text:       #f1eaff;
  --muted:      #a99cc4;

  --radius: 18px;
  --wrap: 1180px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0; background: var(--black); color: var(--text);
  font: 16px/1.6 var(--font); -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { line-height: 1.1; margin: 0 0 .5em; letter-spacing: -.02em; }
p { margin: 0 0 1em; }
.wrap { width: min(100% - 40px, var(--wrap)); margin-inline: auto; }

::selection { background: var(--neon); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.skip { position: absolute; left: -999px; top: 10px; z-index: 100; background: var(--accent); color: var(--black); padding: 8px 14px; border-radius: 8px; font-weight: 700; }
.skip:focus { left: 10px; }

/* ---------- header ---------- */
.site-header { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .3s, border-color .3s, backdrop-filter .3s; border-bottom: 1px solid transparent; }
.site-header.solid { background: rgba(11, 8, 18, .78); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-color: var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .14em; font-size: 15px; }
.brand b { color: var(--neon); font-weight: 800; margin-left: .35em; }
.brand-mark { width: 22px; height: 22px; border-radius: 50%; background: conic-gradient(from 200deg, var(--neon), var(--violet-deep), var(--lilac), var(--neon)); box-shadow: 0 0 18px rgba(180, 76, 255, .7); position: relative; }
.brand-mark::after { content: ""; position: absolute; inset: 6px; border-radius: 50%; background: var(--black); }

.nav { display: flex; align-items: center; gap: 6px; }
.nav a { padding: 8px 14px; border-radius: 999px; color: var(--muted); font-weight: 500; font-size: 15px; transition: color .2s, background .2s; }
.nav a:hover, .nav a.active { color: var(--text); background: rgba(180, 76, 255, .12); }
.nav a.nav-cta { color: var(--text); border: 1px solid rgba(180, 76, 255, .5); margin-left: 6px; }
.nav a.nav-cta:hover { background: var(--neon); border-color: var(--neon); }

.menu-btn { display: none; width: 44px; height: 44px; border: 1px solid var(--line); background: transparent; border-radius: 12px; cursor: pointer; position: relative; }
.menu-btn span { position: absolute; left: 12px; right: 12px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .3s var(--ease); }
.menu-btn span:first-child { top: 17px; } .menu-btn span:last-child { top: 25px; }
.menu-btn[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 26px; border-radius: 999px; font: 600 16px/1 var(--font); border: 1px solid transparent; cursor: pointer; transition: transform .2s var(--ease), box-shadow .2s, background .2s, border-color .2s; }
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: linear-gradient(135deg, var(--neon), var(--violet)); color: #fff; box-shadow: 0 8px 30px -8px rgba(180, 76, 255, .8); }
.btn.primary:hover { box-shadow: 0 12px 40px -8px rgba(180, 76, 255, 1); }
.btn.ghost { border-color: rgba(227, 198, 255, .3); color: var(--text); background: rgba(11, 8, 18, .4); backdrop-filter: blur(6px); }
.btn.ghost:hover { border-color: var(--lilac); }
.btn.small { padding: 11px 20px; font-size: 15px; }

/* ---------- hero ---------- */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; overflow: hidden; background: radial-gradient(120% 80% at 75% 50%, #1a0b2e 0%, var(--black) 60%); }
.hero canvas { z-index: 0; }
.hero-glow { position: absolute; inset: 0; pointer-events: none; z-index: 0; background: radial-gradient(40% 40% at 72% 50%, rgba(180, 76, 255, .18), transparent 70%); }
.hero::after { content: ""; position: absolute; inset: auto 0 0; height: 160px; background: linear-gradient(transparent, var(--black)); pointer-events: none; z-index: 0; }
.hero-inner { position: relative; z-index: 1; padding: 120px 0 90px; }
.hero h1 { font-size: clamp(42px, 7vw, 88px); font-weight: 800; max-width: 13ch; }
.grad { background: linear-gradient(100deg, var(--lilac), var(--neon) 55%, var(--violet)); -webkit-background-clip: text; background-clip: text; color: transparent; text-shadow: 0 0 40px rgba(180, 76, 255, .35); }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; letter-spacing: .04em; color: var(--lilac); padding: 7px 14px; border: 1px solid var(--line); border-radius: 999px; background: rgba(19, 14, 29, .6); backdrop-filter: blur(6px); margin-bottom: 26px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--muted); max-width: 52ch; }
.cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 34px 0 48px; }
.stats { display: flex; flex-wrap: wrap; gap: 14px 40px; list-style: none; padding: 0; margin: 0; }
.stats li { display: flex; flex-direction: column; }
.stats b { font-size: 28px; font-weight: 800; color: var(--text); }
.stats span { font-size: 14px; color: var(--muted); }
.scroll-hint { position: absolute; left: 50%; bottom: 26px; z-index: 1; width: 26px; height: 42px; margin-left: -13px; border: 2px solid rgba(227, 198, 255, .35); border-radius: 14px; }
.scroll-hint span { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px; border-radius: 2px; background: var(--neon); animation: wheel 1.8s infinite; }
@keyframes wheel { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(12px); } }

/* ---------- sections ---------- */
.section { position: relative; padding: clamp(80px, 11vw, 140px) 0; }
.section-head { max-width: 700px; margin-bottom: 54px; }
.section-head h2 { font-size: clamp(32px, 4.4vw, 52px); font-weight: 800; }
.section-head p { color: var(--muted); font-size: 18px; }
.kicker { display: inline-block; color: var(--neon); font-weight: 700; font-size: 13px; letter-spacing: .2em; text-transform: uppercase; margin-bottom: 14px; }
.kicker::before { content: ""; display: inline-block; width: 24px; height: 2px; background: var(--neon); vertical-align: middle; margin-right: 10px; box-shadow: 0 0 10px var(--neon); }

.grid { display: grid; gap: 20px; }
.services { grid-template-columns: repeat(3, 1fr); }
.card { position: relative; padding: 32px; border-radius: var(--radius); background: linear-gradient(180deg, var(--ink-2), var(--ink)); border: 1px solid var(--line); overflow: hidden; transition: transform .3s var(--ease), border-color .3s; }
.card::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgba(180, 76, 255, .22), transparent 45%); opacity: 0; transition: opacity .3s; pointer-events: none; }
.card:hover { transform: translateY(-4px); border-color: rgba(180, 76, 255, .45); }
.card:hover::before { opacity: 1; }
.card h3 { font-size: 21px; }
.card p { color: var(--muted); margin: 0; }
.icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 22px; background: rgba(180, 76, 255, .12); border: 1px solid rgba(180, 76, 255, .3); }
.icon svg { width: 26px; height: 26px; fill: none; stroke: var(--lilac); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.card-cta { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; background: linear-gradient(135deg, rgba(122, 46, 224, .35), rgba(61, 20, 102, .5)); border-color: rgba(180, 76, 255, .4); }
.card-cta p { margin-bottom: 20px; color: var(--lilac); }

/* process band */
.band { background: linear-gradient(180deg, transparent, rgba(61, 20, 102, .22) 30%, rgba(61, 20, 102, .22) 70%, transparent); }
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.steps li { padding: 28px 24px; border-top: 2px solid var(--line); position: relative; }
.steps li::before { content: ""; position: absolute; top: -2px; left: 0; width: 40%; height: 2px; background: var(--neon); box-shadow: 0 0 12px var(--neon); }
.steps span { display: block; font-size: 14px; font-weight: 700; color: var(--accent); letter-spacing: .1em; margin-bottom: 14px; }
.steps h3 { font-size: 20px; }
.steps p { color: var(--muted); margin: 0; }

/* projects */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin: -24px 0 34px; }
.chip { padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line); background: var(--ink); color: var(--muted); font: 500 14px var(--font); cursor: pointer; transition: all .2s; }
.chip:hover { color: var(--text); border-color: rgba(180, 76, 255, .5); }
.chip.is-on { background: var(--neon); border-color: var(--neon); color: #fff; }
.projects { grid-template-columns: repeat(2, 1fr); gap: 24px; }
.project { border-radius: var(--radius); overflow: hidden; background: var(--ink); border: 1px solid var(--line); transition: transform .3s var(--ease), border-color .3s, opacity .3s; }
.project:hover { transform: translateY(-4px); border-color: rgba(180, 76, 255, .45); }
.project.hidden { display: none; }
.thumb { aspect-ratio: 16 / 9; display: grid; place-items: center; position: relative; overflow: hidden; }
.thumb span { font-weight: 800; letter-spacing: .4em; font-size: clamp(26px, 4vw, 44px); color: rgba(255, 255, 255, .88); text-shadow: 0 0 30px rgba(180, 76, 255, .9); position: relative; z-index: 1; padding-left: .4em; }
.thumb::after { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(0deg, rgba(255, 255, 255, .035) 0 1px, transparent 1px 4px); }
.t1 { background: radial-gradient(circle at 30% 30%, #b44cff 0, transparent 50%), radial-gradient(circle at 80% 80%, #3d1466 0, transparent 60%), #160b26; }
.t2 { background: radial-gradient(circle at 70% 30%, #d9f56b55 0, transparent 40%), radial-gradient(circle at 20% 80%, #7a2ee0 0, transparent 55%), #120a1f; }
.t3 { background: conic-gradient(from 120deg at 50% 60%, #3d1466, #b44cff, #e3c6ff55, #3d1466); }
.t4 { background: linear-gradient(135deg, #2a0f4a, #7a2ee0 60%, #b44cff); }
.project-body { padding: 24px 26px 28px; }
.tag { font-size: 13px; font-weight: 600; color: var(--neon); margin-bottom: 8px; letter-spacing: .04em; }
.project h3 { font-size: 22px; }
.project-body p:last-child { color: var(--muted); margin: 0; }

/* contact */
.contact { background: radial-gradient(60% 60% at 15% 40%, rgba(122, 46, 224, .18), transparent 70%); }
.contact-inner { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items: start; }
.contact-copy h2 { font-size: clamp(32px, 4.4vw, 52px); font-weight: 800; }
.contact-copy > p { color: var(--muted); font-size: 18px; }
.contact-list { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 14px; }
.contact-list li { display: flex; flex-direction: column; padding: 16px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--ink); }
.contact-list span { font-size: 12px; text-transform: uppercase; letter-spacing: .16em; color: var(--muted); }
.contact-list a { font-weight: 600; color: var(--lilac); }
.contact-list a:hover { color: var(--neon); }

.form { padding: 34px; border-radius: 22px; background: linear-gradient(180deg, var(--ink-2), var(--ink)); border: 1px solid rgba(180, 76, 255, .28); box-shadow: 0 30px 80px -40px rgba(180, 76, 255, .6); display: grid; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 14px; font-weight: 600; color: var(--lilac); }
.field input, .field select, .field textarea { width: 100%; padding: 13px 16px; border-radius: 12px; border: 1px solid var(--line); background: rgba(11, 8, 18, .7); color: var(--text); font: 16px var(--font); transition: border-color .2s, box-shadow .2s; }
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--neon); box-shadow: 0 0 0 4px rgba(180, 76, 255, .18); }
.field .invalid { border-color: #ff5c8a; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .btn { justify-self: start; }
.form-status { margin: 0; font-size: 15px; min-height: 1.4em; }
.form-status.ok { color: var(--accent); }
.form-status.err { color: #ff8fb0; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 34px 0; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; }
.footer-inner p { margin: 0; color: var(--muted); font-size: 14px; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .services { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 760px) {
  .menu-btn { display: block; }
  .nav { position: fixed; inset: 72px 0 auto; flex-direction: column; align-items: stretch; gap: 4px; padding: 16px 20px 24px; background: rgba(11, 8, 18, .96); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: all .25s var(--ease); }
  .nav.open { transform: none; opacity: 1; visibility: visible; }
  .nav a { padding: 14px 16px; font-size: 17px; }
  .nav a.nav-cta { margin: 6px 0 0; text-align: center; }
}
@media (max-width: 680px) {
  .services, .projects, .steps { grid-template-columns: 1fr; }
  .card, .form { padding: 26px; }
  .stats { gap: 14px 28px; }
  .stats b { font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}