/* ═══════════════════════════════════════════════
   SITECENTER — stylesheet
   ═══════════════════════════════════════════════ */

:root {
  --black:        #0a0a0a;
  --deep:         #111214;
  --surface:      #181a1c;
  --border:       #2a2d30;
  --silver-dark:  #4a4e52;
  --silver:       #8a9099;
  --silver-light: #b8bfc8;
  --white:        #f0f2f4;
  --accent:       #c8d0d8;
  --glow:         rgba(180,192,204,.12);
  --mono:         'IBM Plex Mono', monospace;
  --display:      'Rajdhani', sans-serif;
  --body:         'Rajdhani', sans-serif;
  --transition:   .3s cubic-bezier(.4,0,.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--black);
  color: var(--white);
  font-family: var(--body);
  overflow-x: hidden;
  cursor: none; /* custom cursor */
}

/* ─── CUSTOM CURSOR ─────────────────────────── */
#cursor {
  position: fixed;
  top: 0; left: 0;
  width: 10px; height: 10px;
  background: var(--white);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%,-50%);
  transition: width .2s, height .2s, background .2s, opacity .2s;
  mix-blend-mode: difference;
}
#cursor-ring {
  position: fixed;
  top: 0; left: 0;
  width: 36px; height: 36px;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%,-50%);
  transition: width .35s, height .35s, border-color .35s, transform .12s;
}
body.cursor-hover #cursor       { width: 6px; height: 6px; }
body.cursor-hover #cursor-ring  { width: 52px; height: 52px; border-color: rgba(255,255,255,.7); }

/* ─── NOISE OVERLAY ─────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  opacity: .4;
  pointer-events: none;
  z-index: 0;
}

/* ─── SCROLL PROGRESS BAR ───────────────────── */
#progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--white);
  z-index: 200;
  transition: width .1s linear;
}

/* ─── NAV ───────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 3rem;
  border-bottom: 1px solid transparent;
  transition: background .4s, border-color .4s;
}
nav.scrolled {
  background: rgba(10,10,10,.92);
  backdrop-filter: blur(12px);
  border-color: var(--border);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
}
.nav-logo-icon {
  width: 36px; height: 36px;
  background: var(--white);
  display: grid;
  place-items: center;
  clip-path: polygon(0 0,85% 0,100% 15%,100% 100%,15% 100%,0 85%);
  transition: background var(--transition);
}
.nav-logo:hover .nav-logo-icon { background: var(--silver-light); }
.nav-logo-icon span {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--black);
  font-weight: bold;
}
.nav-logo-text {
  font-family: var(--display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--white);
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--silver);
  text-decoration: none;
  text-transform: uppercase;
  transition: color .2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--white);
  transform: scaleX(0);
  transition: transform .2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--white); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }

.nav-cta {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--black);
  background: var(--white);
  border: none;
  padding: .55rem 1.4rem;
  cursor: none;
  text-transform: uppercase;
  clip-path: polygon(0 0,90% 0,100% 20%,100% 100%,10% 100%,0 80%);
  transition: background .2s, color .2s;
  text-decoration: none;
}
.nav-cta:hover { background: var(--silver-light); }

/* hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: none;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px; height: 1px;
  background: var(--white);
  transition: transform .3s, opacity .3s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* mobile menu */
.nav-mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(10,10,10,.97);
  backdrop-filter: blur(12px);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s;
}
.nav-mobile.open { opacity: 1; pointer-events: all; display: flex; }
.nav-mobile a {
  font-family: var(--display);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--silver);
  text-decoration: none;
  text-transform: uppercase;
  transition: color .2s, letter-spacing .2s;
}
.nav-mobile a:hover { color: var(--white); letter-spacing: .2em; }

/* ─── HERO ───────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0 3rem;
  overflow: hidden;
}
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}
.grid-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 65% 50%, rgba(160,180,200,.06) 0%, transparent 70%);
}
.circuit-deco {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 55%;
  opacity: .15;
  transition: opacity .4s;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}
.hero-tag {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--silver);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  opacity: 0;
  animation: fadeUp .6s .2s forwards;
}
.hero-tag::before {
  content: '';
  display: inline-block;
  width: 32px; height: 1px;
  background: var(--silver);
}
h1 {
  font-family: var(--display);
  font-size: clamp(4rem, 8vw, 8rem);
  font-weight: 900;
  line-height: .92;
  text-transform: uppercase;
  letter-spacing: -.01em;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp .7s .35s forwards;
}
h1 .line-silver {
  color: transparent;
  -webkit-text-stroke: 1px var(--silver-dark);
}
h1 .line-accent {
  background: linear-gradient(90deg, var(--white), var(--silver-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--silver-light);
  max-width: 480px;
  margin-bottom: 2.5rem;
  font-weight: 400;
  opacity: 0;
  animation: fadeUp .7s .5s forwards;
}
.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp .7s .65s forwards;
}
.btn-primary {
  font-family: var(--mono);
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--black);
  background: var(--white);
  border: none;
  padding: .85rem 2rem;
  cursor: none;
  clip-path: polygon(0 0,88% 0,100% 18%,100% 100%,12% 100%,0 82%);
  transition: all .2s;
  text-decoration: none;
  display: inline-block;
}
.btn-primary:hover { background: var(--silver-light); transform: translateY(-2px); }
.btn-secondary {
  font-family: var(--mono);
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--silver-light);
  background: transparent;
  border: 1px solid var(--border);
  padding: .85rem 2rem;
  cursor: none;
  transition: all .2s;
  text-decoration: none;
  display: inline-block;
}
.btn-secondary:hover { border-color: var(--silver); color: var(--white); transform: translateY(-2px); }

/* hero stats */
.hero-stats {
  position: absolute;
  right: 5rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  z-index: 2;
  opacity: 0;
  animation: fadeLeft .8s .8s forwards;
}
.stat-chip {
  border: 1px solid var(--border);
  background: rgba(24,26,28,.8);
  backdrop-filter: blur(8px);
  padding: 1rem 1.4rem;
  min-width: 160px;
  transition: border-color var(--transition);
}
.stat-chip:hover { border-color: var(--silver-dark); }
.stat-chip .num {
  font-family: var(--display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
  margin-bottom: .2rem;
}
.stat-chip .label {
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .12em;
  color: var(--silver);
  text-transform: uppercase;
}

/* ─── SHARED SECTION ────────────────────────── */
section { position: relative; z-index: 1; }
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 3rem;
}
.section-header { margin-bottom: 3.5rem; }
.section-kicker {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .25em;
  color: var(--silver-dark);
  text-transform: uppercase;
  margin-bottom: .75rem;
  display: flex;
  align-items: center;
  gap: .6rem;
}
.section-kicker::before {
  content: '';
  display: inline-block;
  width: 20px; height: 1px;
  background: var(--silver-dark);
}
h2 {
  font-family: var(--display);
  font-size: clamp(2.5rem, 4vw, 3.8rem);
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: .02em;
}
h2 em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1px var(--silver-dark);
}

/* ─── DIVIDER ────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 3rem;
}

/* ─── SERVICIOS ─────────────────────────────── */
#servicios { background: var(--deep); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.service-card {
  background: var(--deep);
  padding: 2.2rem;
  position: relative;
  overflow: hidden;
  cursor: none;
  transition: background .3s;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--silver-dark), transparent);
  transform: scaleX(0);
  transition: transform .4s;
}
.service-card:hover { background: var(--surface); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 48px; height: 48px;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  margin-bottom: 1.4rem;
  font-size: 1.2rem;
  color: var(--silver-light);
  transition: border-color .3s, color .3s, transform .3s;
}
.service-card:hover .service-icon {
  border-color: var(--silver);
  color: var(--white);
  transform: rotate(6deg) scale(1.08);
}
.service-num {
  position: absolute;
  top: 1.5rem; right: 1.8rem;
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--silver-dark);
  letter-spacing: .1em;
}
.service-title {
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  margin-bottom: .75rem;
  color: var(--white);
}
.service-desc {
  font-size: .95rem;
  line-height: 1.65;
  color: var(--silver);
  font-weight: 400;
}

/* ─── OBJETIVO ───────────────────────────────── */
#objetivo { background: var(--black); }
.objetivo-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.objetivo-text p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--silver-light);
  font-weight: 400;
  margin-bottom: 1.2rem;
}
.objetivo-text p strong { color: var(--white); font-weight: 600; }
.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 2rem;
}
.skill-tag {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--silver);
  border: 1px solid var(--border);
  padding: .4rem .9rem;
  transition: all .2s;
  cursor: none;
}
.skill-tag:hover { border-color: var(--silver); color: var(--white); background: rgba(255,255,255,.03); }
.objetivo-visual { position: relative; height: 380px; }
.terminal-box {
  position: absolute;
  inset: 0;
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1.5rem;
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1.2rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--border);
}
.t-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.t-title {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--silver-dark);
  letter-spacing: .1em;
  margin-left: auto;
}
.terminal-lines { font-family: var(--mono); font-size: .8rem; line-height: 2; }
.t-line { display: flex; gap: .5rem; min-height: 1.6em; }
.t-prompt { color: var(--silver-dark); }
.t-cmd { color: var(--silver-light); }
.t-out { color: var(--silver); padding-left: 1rem; }
.t-cursor::after {
  content: '█';
  animation: blink 1s step-start infinite;
  color: var(--silver-light);
}
@keyframes blink { 50% { opacity: 0; } }

/* ─── EXPERIENCIA ────────────────────────────── */
#experiencia { background: var(--deep); }
.exp-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.5rem;
}
/* Fila 1: 3 tarjetas → 2 columnas cada una */
.exp-item:nth-child(1) { grid-column: 1 / span 2; }
.exp-item:nth-child(2) { grid-column: 3 / span 2; }
.exp-item:nth-child(3) { grid-column: 5 / span 2; }
/* Fila 2: 2 tarjetas → 3 columnas cada una (= ancho de las 3 de arriba) */
.exp-item:nth-child(4) { grid-column: 1 / span 3; }
.exp-item:nth-child(5) { grid-column: 4 / span 3; }
.exp-item {
  border-left: 2px solid var(--border);
  padding: 1.2rem 1.5rem;
  position: relative;
  transition: border-color .3s;
  cursor: none;
}
.exp-item::before {
  content: '';
  position: absolute;
  top: 1.2rem; left: -5px;
  width: 8px; height: 8px;
  background: var(--border);
  border-radius: 50%;
  transition: background .3s, transform .3s;
}
.exp-item:hover { border-color: var(--silver); }
.exp-item:hover::before { background: var(--silver); transform: scale(1.4); }
.exp-item p {
  font-size: .95rem;
  line-height: 1.6;
  color: var(--silver-light);
  font-weight: 400;
}

/* ─── SAAS ───────────────────────────────────── */
#saas { background: var(--black); }
.saas-intro { margin-bottom: 3rem; }
.saas-lead {
  font-family: var(--body);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--silver-light);
  font-weight: 400;
  max-width: 820px;
  padding: 1.5rem 2rem;
  border-left: 2px solid var(--silver-dark);
  background: var(--surface);
}
.saas-lead strong { color: var(--white); font-weight: 600; }
.saas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}
.saas-card {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: border-color .3s, background .3s, transform .3s;
  cursor: none;
}
.saas-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--silver-dark), transparent);
  transform: scaleX(0);
  transition: transform .4s;
}
.saas-card:hover { border-color: var(--silver-dark); background: var(--deep); transform: translateY(-4px); }
.saas-card:hover::after { transform: scaleX(1); }
.saas-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}
.saas-icon {
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  color: var(--silver-light);
  transition: border-color .3s, color .3s, transform .3s;
}
.saas-card:hover .saas-icon { border-color: var(--silver); color: var(--white); transform: rotate(-6deg) scale(1.1); }
.saas-badge {
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--silver-dark);
  border: 1px solid var(--border);
  padding: .25rem .6rem;
}
.saas-card-title {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: .75rem;
}
.saas-card-desc {
  font-size: .95rem;
  line-height: 1.65;
  color: var(--silver);
  font-weight: 400;
  margin-bottom: 1.2rem;
}
.saas-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}
.saas-features li {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .06em;
  color: var(--silver);
  display: flex;
  align-items: center;
  gap: .6rem;
}
.saas-features li i { color: var(--silver-light); font-size: .65rem; }
.saas-cta-bar {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 1.6rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.saas-cta-text {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--body);
  font-size: 1rem;
  color: var(--silver-light);
  font-weight: 400;
}
.saas-cta-text i { font-size: 1.3rem; color: var(--silver); flex-shrink: 0; }

/* ─── CONTACTO ───────────────────────────────── */
#contacto { background: var(--deep); }
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}
.contact-info .big-text {
  font-family: var(--display);
  font-size: clamp(2.8rem, 5vw, 5rem);
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: .02em;
  margin-bottom: 2rem;
}
.contact-info .big-text span {
  display: block;
  color: transparent;
  -webkit-text-stroke: 1px var(--silver-dark);
}
.contact-data { display: flex; flex-direction: column; gap: 1.2rem; }
.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--border);
}
.contact-row:last-child { border-bottom: none; }
.c-icon {
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 1rem;
}
.c-label {
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .12em;
  color: var(--silver-dark);
  text-transform: uppercase;
  margin-bottom: .2rem;
}
.c-value { font-size: .95rem; color: var(--silver-light); font-weight: 400; }

/* form */
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label {
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .12em;
  color: var(--silver-dark);
  text-transform: uppercase;
}
.form-group input,
.form-group textarea,
.form-group select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--white);
  font-family: var(--body);
  font-size: .95rem;
  padding: .8rem 1rem;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  resize: none;
  -webkit-appearance: none;
}
.form-group select option { background: var(--surface); }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--silver);
  box-shadow: 0 0 0 3px rgba(138,144,153,.08);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--silver-dark); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.btn-submit {
  font-family: var(--mono);
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--black);
  background: var(--white);
  border: none;
  padding: 1rem 2rem;
  cursor: none;
  clip-path: polygon(0 0,92% 0,100% 22%,100% 100%,8% 100%,0 78%);
  transition: all .2s;
  margin-top: .5rem;
  align-self: flex-start;
}
.btn-submit:hover { background: var(--silver-light); transform: translateY(-2px); }
.btn-submit:disabled { opacity: .6; transform: none; }

/* form field validation feedback */
.form-group input.valid,
.form-group textarea.valid { border-color: #6a9f8a; }
.form-group input.invalid,
.form-group textarea.invalid { border-color: #9f6a6a; }
.field-msg {
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .08em;
  margin-top: .2rem;
  min-height: 1em;
}
.field-msg.ok  { color: #6a9f8a; }
.field-msg.err { color: #9f6a6a; }

/* ─── TOAST ──────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--white);
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .08em;
  padding: .9rem 1.4rem;
  z-index: 500;
  transform: translateY(80px);
  opacity: 0;
  transition: transform .4s cubic-bezier(.4,0,.2,1), opacity .4s;
  pointer-events: none;
  max-width: 300px;
}
#toast.show { transform: translateY(0); opacity: 1; }

/* ─── FOOTER ─────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--black);
}
.footer-logo {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--silver-dark);
  text-transform: uppercase;
}
.footer-copy {
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .1em;
  color: var(--silver-dark);
  text-transform: uppercase;
}
.back-top {
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .1em;
  color: var(--silver-dark);
  text-transform: uppercase;
  background: none;
  border: 1px solid var(--border);
  padding: .4rem .8rem;
  cursor: none;
  transition: color .2s, border-color .2s;
  text-decoration: none;
}
.back-top:hover { color: var(--white); border-color: var(--silver); }

/* ─── ANIMATIONS ─────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeLeft {
  from { opacity: 0; transform: translate(24px, -50%); }
  to   { opacity: 1; transform: translate(0, -50%); }
}

/* scroll-reveal */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .65s cubic-bezier(.4,0,.2,1), transform .65s cubic-bezier(.4,0,.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* stagger children */
.reveal-group > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .5s cubic-bezier(.4,0,.2,1), transform .5s cubic-bezier(.4,0,.2,1);
}
.reveal-group.visible > *:nth-child(1) { opacity:1; transform:none; transition-delay:.05s; }
.reveal-group.visible > *:nth-child(2) { opacity:1; transform:none; transition-delay:.15s; }
.reveal-group.visible > *:nth-child(3) { opacity:1; transform:none; transition-delay:.25s; }
.reveal-group.visible > *:nth-child(4) { opacity:1; transform:none; transition-delay:.35s; }
.reveal-group.visible > *:nth-child(5) { opacity:1; transform:none; transition-delay:.45s; }

/* ─── RESPONSIVE ─────────────────────────────── */
@media (max-width: 900px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  #hero { padding: 6rem 1.5rem 4rem; }
  .hero-stats { display: none; }
  .section-inner { padding: 4rem 1.5rem; }
  .objetivo-layout,
  .contact-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .form-row { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
  .divider { margin: 0 1.5rem; }
  .saas-cta-bar { flex-direction: column; align-items: flex-start; }
  body { cursor: auto; }
  #cursor, #cursor-ring { display: none; }
  .btn-primary, .btn-secondary, .btn-submit,
  .nav-cta, .nav-hamburger, .back-top,
  .service-card, .saas-card, .exp-item,
  .skill-tag { cursor: pointer; }
  /* exp-grid: una sola columna en móvil */
  .exp-grid { grid-template-columns: 1fr; }
  .exp-item:nth-child(1),
  .exp-item:nth-child(2),
  .exp-item:nth-child(3),
  .exp-item:nth-child(4),
  .exp-item:nth-child(5) { grid-column: 1 / -1; }
}