/* ============ VivaForge — Premium AI studio site ============ */

:root {
  --bg: #08080c;
  --bg-alt: #0c0c14;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --text: #f4f4f7;
  --text-muted: #9a9aa8;
  --text-dim: #6b6b78;
  --accent-1: #8b5cf6;
  --accent-2: #06b6d4;
  --accent-3: #ec4899;
  --gradient: linear-gradient(120deg, var(--accent-1), var(--accent-2));
  --gradient-soft: linear-gradient(120deg, rgba(139,92,246,0.18), rgba(6,182,212,0.18));
  --radius: 18px;
  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --ease: cubic-bezier(.16,1,.3,1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

h2 { font-size: clamp(2rem, 3.6vw, 2.9rem); margin-bottom: 14px; }
h3 { font-size: 1.3rem; margin-bottom: 10px; }

p { color: var(--text-muted); }

.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 14px;
}

/* ---------- noise + progress ---------- */
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--gradient);
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s var(--ease), border-color 0.35s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #05050a;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(139,92,246,0.35);
}

.btn-ghost {
  background: rgba(255,255,255,0.03);
  color: var(--text);
  border-color: var(--border);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: var(--surface-hover);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.btn-lg { padding: 15px 30px; font-size: 0.98rem; }
.btn-block { width: 100%; }
.btn-nav { padding: 10px 20px; font-size: 0.85rem; }

/* ---------- navbar ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: 20px 0;
  transition: padding 0.35s var(--ease), background 0.35s var(--ease), border-color 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  padding: 12px 0;
  background: rgba(8,8,12,0.72);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--border);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: -0.01em;
}
.logo-mark {
  color: var(--accent-1);
  font-size: 1rem;
}
.logo-thin { font-weight: 500; color: var(--text-muted); margin-left: 1px; }

.nav-links {
  display: flex;
  gap: 34px;
  margin-left: auto;
  margin-right: 34px;
}
.nav-links a {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color 0.25s;
  position: relative;
}
.nav-links a:hover { color: var(--text); }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.burger span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 140px 0 100px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
  transition: opacity 0.6s var(--ease);
}

.hero-gradient-bg {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.6s var(--ease);
  background: radial-gradient(ellipse at 50% 0%, #14141f 0%, var(--bg) 70%);
}

.grid-plane {
  position: absolute;
  inset: -20% -20%;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  transform: perspective(600px) rotateX(60deg);
  transform-origin: bottom;
  mask-image: linear-gradient(to top, black, transparent 70%);
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  animation: float 16s ease-in-out infinite;
}
.blob-1 { width: 420px; height: 420px; background: var(--accent-1); top: 8%; left: 8%; }
.blob-2 { width: 380px; height: 380px; background: var(--accent-2); bottom: 4%; right: 10%; animation-delay: -5s; }
.blob-3 { width: 300px; height: 300px; background: var(--accent-3); top: 40%; right: 30%; animation-delay: -10s; opacity: 0.3; }

@keyframes float {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.08); }
}

.hero-bg.mode-design .hero-video { opacity: 0; }
.hero-bg.mode-design .hero-gradient-bg { opacity: 1; }

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(8,8,12,0.55) 0%, rgba(8,8,12,0.55) 30%, rgba(8,8,12,0.92) 100%),
    linear-gradient(90deg, rgba(8,8,12,0.5), rgba(8,8,12,0.15) 40%, rgba(8,8,12,0.5));
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 880px;
}

.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  margin-bottom: 22px;
}

.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  max-width: 620px;
  margin: 0 auto 36px;
  color: var(--text-muted);
}

.word-def {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
  margin-bottom: 34px;
  font-size: 0.8rem;
  flex-wrap: wrap;
  justify-content: center;
}
.word-def-term {
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 600;
  color: var(--text);
}
.word-def-langs {
  font-family: var(--font-head);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--accent-2);
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  padding: 0 10px;
}
.word-def-desc { color: var(--text-dim); }

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* background switcher control */
.bg-switcher {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 40px;
}

.bg-switcher-tabs {
  display: flex;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  border-radius: 999px;
  padding: 4px;
  gap: 4px;
}

.bg-tab {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 7px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
}
.bg-tab.active {
  background: var(--gradient);
  color: #05050a;
}

.bg-thumbs {
  display: flex;
  gap: 8px;
}
.bg-thumb {
  width: 30px; height: 30px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text-dim);
  font-family: var(--font-head);
  font-size: 0.68rem;
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, transform 0.25s;
}
.bg-thumb:hover { transform: translateY(-2px); color: var(--text); }
.bg-thumb.active { border-color: var(--accent-2); color: var(--accent-2); }
.bg-thumbs.hidden { display: none; }

.scroll-cue {
  position: absolute;
  z-index: 2;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.scroll-cue span {
  width: 1px; height: 34px;
  background: linear-gradient(var(--accent-2), transparent);
  animation: scrollDown 2s ease-in-out infinite;
}
.scroll-cue p {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}
@keyframes scrollDown {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  40% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  60% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ---------- marquee ---------- */
.marquee-section {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  overflow: hidden;
  padding: 18px 0;
}
.marquee-track {
  display: flex;
  gap: 14px;
  white-space: nowrap;
  width: max-content;
  animation: marquee 32s linear infinite;
  font-family: var(--font-head);
  font-size: 0.95rem;
  color: var(--text-dim);
}
.marquee-track span:nth-child(2n) { color: var(--accent-2); }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- sections ---------- */
.section { padding: 130px 0; }
.section-alt {
  background: var(--bg-alt);
  position: relative;
  overflow: hidden;
}
.section-alt::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../assets/images/texture-streaks.png') center/cover no-repeat;
  opacity: 0.12;
  pointer-events: none;
}
.section-alt .container { position: relative; z-index: 1; }

#diferenciales {
  position: relative;
  overflow: hidden;
}
#diferenciales::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../assets/images/texture-glow.png') center/cover no-repeat;
  opacity: 0.14;
  pointer-events: none;
}
#diferenciales .container { position: relative; z-index: 1; }

.section-head {
  max-width: 640px;
  margin: 0 auto 64px;
  text-align: center;
}
.section-head h2 { margin-bottom: 0; }

/* ---------- service cards ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 28px;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(139,92,246,0.35);
  background: var(--surface-hover);
}

.service-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.service-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-soft);
  color: var(--accent-2);
}
.service-icon svg { width: 22px; height: 22px; }

.service-num {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.service-card p { font-size: 0.94rem; margin-bottom: 16px; }

.service-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.service-list li {
  font-size: 0.86rem;
  color: var(--text-dim);
  padding-left: 18px;
  position: relative;
}
.service-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 7px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gradient);
}

/* ---------- image showcase ---------- */
.image-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
}
.image-showcase-item {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  position: relative;
}
.image-showcase-item img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.image-showcase-item:hover img { transform: scale(1.04); }
.image-showcase-item figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 14px 18px;
  font-size: 0.78rem;
  color: var(--text-muted);
  background: linear-gradient(0deg, rgba(8,8,12,0.85), transparent);
}

/* ---------- secondary services ---------- */
.secondary-services {
  margin-top: 40px;
  padding: 28px 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.secondary-services-head h3 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}
.secondary-services-head p {
  font-size: 0.86rem;
}
.secondary-services-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.secondary-service-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  min-width: 220px;
  transition: border-color 0.3s, background 0.3s, transform 0.3s;
}
.secondary-service-item:hover {
  border-color: rgba(6,182,212,0.4);
  background: var(--surface);
  transform: translateY(-2px);
}
.secondary-service-title {
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}
.secondary-service-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ---------- timeline ---------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 6%;
  right: 6%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 15%, var(--border) 85%, transparent);
  z-index: 0;
}
.timeline-item { position: relative; z-index: 1; }
.timeline-num {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  color: var(--accent-2);
  margin-bottom: 22px;
}
.timeline-body p { font-size: 0.92rem; }

/* ---------- diferenciales ---------- */
.diferenciales-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}

.lead-text {
  font-size: 1.05rem;
  margin: 18px 0 30px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.feature-item {
  display: flex;
  gap: 16px;
}
.feature-dot {
  flex-shrink: 0;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--gradient);
  margin-top: 8px;
  box-shadow: 0 0 16px rgba(139,92,246,0.6);
}
.feature-item h4 {
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.feature-item p { font-size: 0.9rem; }

/* ---------- cta banner ---------- */
.cta-banner {
  padding: 100px 0;
  position: relative;
  background: var(--bg-alt) url('../assets/images/texture-streaks.png') center/cover no-repeat;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(8,8,12,0.7), rgba(8,8,12,0.7)),
    radial-gradient(ellipse at 50% 50%, rgba(139,92,246,0.14), transparent 60%);
}
.cta-banner-inner {
  position: relative;
  text-align: center;
  max-width: 620px;
}
.cta-banner-inner h2 { margin-bottom: 12px; }
.cta-banner-inner p { margin-bottom: 30px; }

/* ---------- contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: flex-start;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 28px;
}
.contact-method {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  font-weight: 500;
  transition: border-color 0.3s, background 0.3s, transform 0.3s;
}
.contact-method:hover {
  border-color: rgba(6,182,212,0.4);
  background: var(--surface-hover);
  transform: translateX(4px);
}
.contact-icon {
  width: 34px; height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--gradient-soft);
  color: var(--accent-2);
  font-size: 0.95rem;
}
.contact-note {
  margin-top: 20px;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.contact-note code {
  background: rgba(255,255,255,0.06);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.78rem;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}
.form-row input, .form-row textarea {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.92rem;
  resize: vertical;
  transition: border-color 0.3s, background 0.3s;
}
.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--accent-2);
  background: rgba(255,255,255,0.05);
}
.form-hint {
  font-size: 0.76rem;
  color: var(--text-dim);
  text-align: center;
}

/* ---------- footer ---------- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-copy { font-size: 0.82rem; color: var(--text-dim); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.82rem; color: var(--text-muted); }
.footer-links a:hover { color: var(--text); }

/* ---------- reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .cards-grid { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .timeline::before { display: none; }
  .diferenciales-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .secondary-services { flex-direction: column; align-items: flex-start; }
  .image-showcase { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav-links {
    position: fixed;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    background: rgba(8,8,12,0.97);
    backdrop-filter: blur(16px);
    padding: 24px 28px;
    gap: 18px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-140%);
    transition: transform 0.4s var(--ease);
  }
  .nav-links.open { transform: translateY(0); }
  .burger { display: flex; }
  .btn-nav { display: none; }
  .timeline { grid-template-columns: 1fr; }
  .hero { padding: 130px 0 60px; }
  .hero-actions { flex-direction: column; width: 100%; max-width: 320px; margin: 0 auto; }
  .bg-switcher, .scroll-cue {
    position: static;
    transform: none;
    left: auto; bottom: auto;
    margin-top: 32px;
  }
}