/* SITTIO — sistema de diseño v7, neobrutalism editorial
   Negro puro + naranja único + Space Grotesk. Sin templates genéricos. */

:root {
  --ink:        #0A0A0A;
  --ink-2:      #141414;
  --orange:     #FF5500;
  --orange-dim: rgba(255,85,0,0.14);
  --paper:      #F2F0EB;
  --paper-dim:  rgba(242,240,235,0.62);
  --paper-faint:rgba(242,240,235,0.36);
  --whatsapp:   #25D366;

  --font: 'Space Grotesk', sans-serif;

  --h1:   clamp(2.6rem, 6.4vw, 5.6rem);
  --h2:   clamp(2.5rem, 5.4vw, 4.6rem);
  --h3:   clamp(1.2rem, 2vw, 1.5rem);
  --lead: clamp(1.05rem, 1.8vw, 1.25rem);
  --body: clamp(0.9rem, 1.5vw, 1rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); font-size: var(--body); background: var(--ink); color: var(--paper); overflow-x: hidden; line-height: 1.6; }

.grain {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none; opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
.wrap { width: min(1180px, 92%); margin-inline: auto; position: relative; }

.tag {
  display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink); background: var(--orange);
  padding: 0.4rem 0.9rem; transform: rotate(-2.5deg); margin-bottom: 1.4rem;
}
.section-header .tag { margin-bottom: 1.2rem; }

[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-stagger] > * { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; transition-delay: calc(var(--i) * 0.1s); }
[data-stagger].is-visible > * { opacity: 1; transform: translateY(0); }

/* NAV */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 1.4rem 0; transition: background 0.3s, border-color 0.3s, padding 0.3s; }
.nav.is-scrolled { background: rgba(10,10,10,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,85,0,0.16); padding: 0.9rem 0; }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.nav-logo { font-weight: 700; font-size: 1.3rem; letter-spacing: 0.02em; }
.nav-links { display: flex; align-items: center; gap: 1.8rem; list-style: none; }
.nav-links a { font-size: 0.82rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; opacity: 0.72; transition: opacity 0.2s, color 0.2s; }
.nav-links a:hover { opacity: 1; color: var(--orange); }
.nav-cta { font-size: 0.8rem; font-weight: 700; padding: 0.6rem 1.2rem; background: var(--orange); color: var(--ink); }
.nav-cta:hover { background: #ff6e26; }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.nav-hamburger span { display: block; width: 22px; height: 2px; background: var(--paper); }

/* HERO */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding: 110px 0 60px; overflow: hidden; }
.hero-ghost { position: absolute; right: -3%; top: 4%; font-weight: 700; font-size: clamp(160px, 24vw, 340px); color: var(--orange); opacity: 0.045; z-index: 0; pointer-events: none; line-height: 1; user-select: none; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 3.5rem; align-items: center; position: relative; z-index: 1; }
.hero-copy h1 { font-weight: 700; font-size: var(--h1); line-height: 1.03; letter-spacing: -0.01em; margin-bottom: 1.4rem; }
.hero-copy h1 em { font-style: normal; color: var(--orange); }
.hero-sub { font-weight: 300; font-size: var(--lead); color: var(--paper-dim); max-width: 480px; margin-bottom: 2.2rem; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; margin-bottom: 2.6rem; }

.btn { display: inline-flex; align-items: center; gap: 0.55rem; font-family: var(--font); font-weight: 700; font-size: 0.9rem; padding: 0.95rem 1.7rem; cursor: pointer; transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s; }
.btn-primary { background: var(--orange); color: var(--ink); border: 1px solid var(--orange); }
.btn-primary:hover { background: #ff6e26; transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--paper); border: 1px solid rgba(242,240,235,0.35); }
.btn-ghost:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

.hero-stats { display: flex; gap: 2.2rem; flex-wrap: wrap; }
.stat-item .stat-num { font-weight: 700; font-size: clamp(1.7rem, 3vw, 2.3rem); color: var(--orange); line-height: 1; }
.stat-item .stat-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--paper-faint); margin-top: 0.3rem; max-width: 140px; }

/* BROWSER MOCKUP (elemento de diseño v7 — la barra de URL) */
.browser-frame { background: var(--ink-2); border: 1px solid rgba(255,85,0,0.18); border-radius: 8px; overflow: hidden; box-shadow: 0 30px 70px rgba(0,0,0,0.55); }
.browser-frame img { width: 100%; height: auto; display: block; }
.url-bar { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: rgba(255,85,0,0.05); border-bottom: 1px solid rgba(255,85,0,0.14); }
.url-dots { display: flex; gap: 6px; }
.url-dots span { width: 9px; height: 9px; border-radius: 50%; background: var(--orange); opacity: 0.3; }
.url-dots span:first-child { opacity: 0.6; }
.url-lock { font-size: 10px; color: var(--orange); opacity: 0.5; }
.url-text { font-size: 12.5px; color: var(--orange); opacity: 0.55; letter-spacing: 0.02em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.hero-mock { position: relative; transform: rotate(1.5deg); }
.hero-mock .browser-frame img { height: 340px; object-fit: cover; object-position: top; }
.hero-mock-tag {
  position: absolute; left: -6%; bottom: -8%; z-index: 2;
  background: var(--ink); border: 1px solid rgba(255,85,0,0.3); padding: 0.9rem 1.2rem;
  display: flex; flex-direction: column; gap: 2px; transform: rotate(-2deg); box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}
.hero-mock-tag__title { font-weight: 700; font-size: 0.95rem; }
.hero-mock-tag__sub { font-size: 0.68rem; color: var(--orange); text-transform: uppercase; letter-spacing: 0.04em; }

/* MARQUEE */
.marquee-track { background: var(--ink); border-top: 1px solid rgba(255,85,0,0.1); border-bottom: 1px solid rgba(255,85,0,0.1); overflow: hidden; padding: 0.85rem 0; }
.marquee-inner { display: flex; white-space: nowrap; animation: marquee 30s linear infinite; }
.marquee-inner span { font-size: 0.72rem; font-weight: 500; color: rgba(242,240,235,0.32); text-transform: uppercase; letter-spacing: 0.14em; padding: 0 2.6rem; }
.marquee-inner span em { color: var(--orange); font-style: normal; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* SECTIONS */
.section { position: relative; padding: clamp(64px, 9vw, 120px) 0; scroll-margin-top: 90px; }
.section-paper { background: var(--paper); color: var(--ink); }
.section-header { max-width: 640px; margin-bottom: 3.5rem; }
.section-header h2 { font-weight: 700; font-size: var(--h2); line-height: 1.08; margin-bottom: 1rem; }
.section-header h2 em { font-style: normal; color: var(--orange); }
.section-header p { font-weight: 300; font-size: var(--lead); color: var(--paper-dim); }
.section-paper .section-header p { color: rgba(10,10,10,0.6); }

.ghost { position: absolute; font-weight: 700; font-size: clamp(200px, 30vw, 480px); line-height: 1; color: var(--orange); opacity: 0.045; z-index: 0; pointer-events: none; user-select: none; right: -2%; top: 6%; }

/* PORTFOLIO */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem; position: relative; z-index: 1; }
.portfolio-card { display: block; transition: transform 0.2s; }
.portfolio-card:hover { transform: translateY(-4px); }
.portfolio-card .browser-frame { aspect-ratio: 16/11; }
.portfolio-card .browser-frame img { height: calc(100% - 33px); object-fit: cover; object-position: top; }
.browser-frame--mobile { aspect-ratio: unset; height: 320px; }
.browser-frame--mobile img { height: 100%; object-fit: cover; object-position: top; }
.portfolio-info { display: flex; justify-content: space-between; align-items: baseline; margin-top: 0.9rem; gap: 8px; }
.portfolio-name { font-weight: 700; font-size: 0.98rem; }
.portfolio-tag { font-size: 0.68rem; color: var(--orange); text-transform: uppercase; letter-spacing: 0.04em; white-space: nowrap; }

/* PRICING */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; position: relative; z-index: 1; }
.price-card { background: var(--ink); color: var(--paper); border: 1px solid rgba(255,85,0,0.18); padding: 2.2rem 1.9rem; display: flex; flex-direction: column; position: relative; }
.price-card--featured { border-color: var(--orange); border-width: 2px; }
.price-card__badge { position: absolute; top: -13px; left: 1.9rem; background: var(--orange); color: var(--ink); font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; padding: 0.3rem 0.7rem; transform: rotate(-2deg); }
.price-card__label { font-weight: 700; font-size: 1.15rem; margin-bottom: 0.7rem; }
.price-card__desc { font-weight: 300; font-size: 0.88rem; color: var(--paper-dim); line-height: 1.6; margin-bottom: 1.4rem; }
.price-card__amount { font-weight: 700; font-size: clamp(1.8rem, 3vw, 2.3rem); color: var(--orange); margin-bottom: 1.4rem; }
.price-card__amount span { font-size: 0.9rem; color: var(--paper-faint); font-weight: 500; }
.price-card__amount--quote { font-size: 1.7rem; }
.price-card__list { list-style: none; display: flex; flex-direction: column; gap: 0.65rem; margin-bottom: 1.8rem; flex-grow: 1; }
.price-card__list li { font-size: 0.85rem; color: var(--paper-dim); display: flex; align-items: flex-start; gap: 0.6rem; }
.price-card__list li i { color: var(--orange); font-size: 0.75rem; margin-top: 4px; flex-shrink: 0; }
.price-card__cta { font-weight: 700; font-size: 0.88rem; color: var(--orange); border-bottom: 1px solid transparent; align-self: flex-start; }
.price-card__cta:hover { border-bottom-color: var(--orange); }
.price-card__cta--filled { background: var(--orange); color: var(--ink); padding: 0.8rem 1.4rem; }
.price-card__cta--filled:hover { background: #ff6e26; border-bottom: none; }

/* WHY */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.8rem; position: relative; z-index: 1; }
.why-card { border-left: 2px solid var(--orange); padding-left: 1.3rem; }
.why-icon { color: var(--orange); font-size: 1.2rem; margin-bottom: 0.9rem; display: block; }
.why-card h3 { font-weight: 700; font-size: 1rem; margin-bottom: 0.6rem; }
.why-card p { font-weight: 300; font-size: 0.85rem; color: var(--paper-dim); line-height: 1.6; }

/* PROCESS */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; position: relative; z-index: 1; }
.step { padding-top: 0.9rem; border-top: 1px solid rgba(10,10,10,0.15); }
.step-number { font-weight: 700; font-size: clamp(2.6rem, 4.6vw, 3.6rem); color: var(--orange); line-height: 1; margin-bottom: 0.9rem; }
.step h3 { font-weight: 700; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 0.6rem; }
.step p { font-weight: 300; font-size: 0.85rem; color: rgba(10,10,10,0.6); line-height: 1.6; }

/* CTA FINAL */
.cta-final { background: var(--orange); color: var(--ink); text-align: left; }
.cta-final h2 { font-weight: 700; font-size: clamp(2.2rem, 5vw, 4rem); line-height: 1.05; margin-bottom: 1.2rem; max-width: 640px; }
.cta-final h2 em { font-style: normal; -webkit-text-stroke: 2px var(--ink); color: transparent; }
.cta-final__sub { font-weight: 400; font-size: var(--lead); max-width: 460px; margin-bottom: 2.2rem; opacity: 0.85; }
.cta-final__actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.cta-final .btn-primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.cta-final .btn-primary:hover { background: #1a1a1a; }
.cta-final .btn-ghost { border-color: rgba(10,10,10,0.4); color: var(--ink); }
.cta-final .btn-ghost:hover { background: var(--ink); color: var(--paper); }

/* FOOTER */
footer { background: var(--ink); padding: 2rem 0; border-top: 1px solid rgba(255,85,0,0.12); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-brand { font-weight: 700; font-size: 1rem; }
.footer-copy { font-size: 0.75rem; color: var(--paper-faint); }

/* WHATSAPP FLOAT */
.wa-float { position: fixed; bottom: 24px; right: 24px; z-index: 200; height: 52px; padding: 0 20px 0 16px; border-radius: 999px; background: var(--whatsapp); display: flex; align-items: center; gap: 9px; box-shadow: 0 8px 26px rgba(37,211,102,0.35); font-size: 21px; color: #fff; transition: transform 0.2s, box-shadow 0.2s; }
.wa-float span { font-family: var(--font); font-size: 13px; font-weight: 700; }
.wa-float:hover { transform: scale(1.05); box-shadow: 0 10px 32px rgba(37,211,102,0.5); }
@media (max-width: 560px) { .wa-float span { display: none; } .wa-float { padding: 0; width: 52px; justify-content: center; } }

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mock { margin-top: 1rem; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: 1.4rem;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(10,10,10,0.97); padding: 1.6rem 5vw;
    border-top: 1px solid rgba(255,85,0,0.14); border-bottom: 1px solid rgba(255,85,0,0.14);
  }
  .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .section { padding: 48px 0; }
  .hero { padding: 90px 0 32px; min-height: unset; }
  .hero-sub { margin-bottom: 1.6rem; }
  .hero-ctas { margin-bottom: 2rem; gap: 0.8rem; }
  .btn { padding: 0.85rem 1.4rem; font-size: 0.85rem; }
  .hero-stats { gap: 1.6rem; }
  .hero-mock .browser-frame img { height: 280px; }
  .hero-mock-tag { left: 0; bottom: -10%; }
  .pricing-grid, .process-steps, .why-grid, .portfolio-grid { grid-template-columns: 1fr; }
  .price-card--featured { order: -1; }
  .cta-final__actions { flex-direction: column; align-items: stretch; }
}
@media (max-width: 480px) {
  .section { padding: 40px 0; }
  .hero-copy h1 { font-size: clamp(34px, 10vw, 46px); line-height: 1.05; }
}