/* --- Variables --- */
:root {
  --bg: #09090b;
  --bg-elevated: #111113;
  --bg-card: #141416;
  --text: #fafafa;
  --text-muted: #a1a1aa;
  --text-subtle: #71717a;
  --accent: #f97316;
  --accent-hover: #ea580c;
  --accent-soft: rgba(249, 115, 22, 0.12);
  --accent-glow: rgba(249, 115, 22, 0.25);
  --border: #27272a;
  --border-light: #3f3f46;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.22s ease;
  --page-padding: clamp(1.25rem, 4vw, 2.5rem);
  --section-gap: clamp(4.5rem, 9vw, 7rem);
  --container-max: 1140px;
}

/* --- Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul { list-style: none; }

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--page-padding);
  padding-right: var(--page-padding);
}

.section {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 0.65rem;
}

.section-head {
  max-width: 640px;
  margin-bottom: 2.5rem;
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3.5vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0.85rem 0;
  background: rgba(9, 9, 11, 0.75);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--border);
  background: rgba(9, 9, 11, 0.92);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.15rem;
  margin-right: auto;
}

.logo-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  flex-shrink: 0;
}

.logo-accent { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 1.75rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.nav-links a:hover { color: var(--text); }

.nav-cta {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5.5rem;
  padding-bottom: 3rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 15% 0%, var(--accent-soft), transparent 55%),
    radial-gradient(ellipse 50% 40% at 85% 20%, rgba(249, 115, 22, 0.06), transparent);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 75% 65% at 50% 40%, black, transparent);
  opacity: 0.35;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: end;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 5.5vw, 3.75rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-title em {
  font-style: normal;
  color: var(--accent);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 2rem;
  line-height: 1.75;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.925rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px var(--accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  border-color: var(--text-muted);
  background: var(--bg-elevated);
}

.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.stat-card {
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition);
}

.stat-card:hover {
  border-color: var(--border-light);
}

.stat-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 0.2rem;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- Proyectos --- */
.proyectos {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.proyectos-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 0.825rem;
  font-weight: 500;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.filter-btn:hover {
  border-color: var(--border-light);
  color: var(--text);
}

.filter-btn.is-active {
  background: var(--accent-soft);
  border-color: rgba(249, 115, 22, 0.35);
  color: var(--accent);
}

.proyectos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.proyecto-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.proyecto-card:hover {
  border-color: rgba(249, 115, 22, 0.4);
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}

.proyecto-card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
}

.proyecto-card--featured .proyecto-img {
  aspect-ratio: auto;
  min-height: 280px;
}

.proyecto-card--featured .proyecto-info {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.proyecto-card.is-hidden {
  display: none;
}

.proyecto-img {
  aspect-ratio: 16 / 10;
  background: var(--bg-card);
  overflow: hidden;
  position: relative;
}

.proyecto-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.proyecto-card:hover .proyecto-img img {
  transform: scale(1.03);
}

.proyecto-type {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.proyecto-info {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.proyecto-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.proyecto-info h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.proyecto-estado {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.55rem;
  border-radius: 6px;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.proyecto-estado--comprobando {
  background: var(--border);
  color: var(--text-muted);
}

.proyecto-estado--activa {
  background: rgba(34, 197, 94, 0.15);
  color: #4ade80;
}

.proyecto-estado--inactiva {
  background: rgba(239, 68, 68, 0.12);
  color: #f87171;
}

.proyecto-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0.65rem;
  flex: 1;
}

.proyecto-role {
  font-size: 0.8rem;
  color: var(--text-subtle);
  margin-bottom: 1rem;
}

.proyecto-role::before {
  content: 'Rol · ';
  color: var(--text-muted);
}

.proyecto-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
}

.proyecto-tag {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.proyecto-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.proyecto-btn {
  font-size: 0.825rem;
  font-weight: 600;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.proyecto-btn--demo {
  background: var(--accent);
  color: #fff;
}

.proyecto-btn--demo:hover {
  background: var(--accent-hover);
}

.proyecto-badge-private {
  font-size: 0.75rem;
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.proyecto-badge-private::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-subtle);
}

/* --- Stack --- */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.85rem;
}

.stack-item {
  padding: 1rem 1.15rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.stack-item:hover {
  border-color: rgba(249, 115, 22, 0.35);
  color: var(--text);
  background: var(--accent-soft);
}

/* --- Servicios --- */
.servicios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.servicio-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  transition: border-color var(--transition), transform var(--transition);
}

.servicio-card:hover {
  border-color: rgba(249, 115, 22, 0.35);
  transform: translateY(-2px);
}

.servicio-num {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1rem;
  letter-spacing: 0.08em;
}

.servicio-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
}

.servicio-card p {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* --- Contacto --- */
.contacto-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: clamp(2rem, 5vw, 3rem);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background-image: radial-gradient(ellipse 60% 80% at 100% 0%, var(--accent-soft), transparent);
}

.contacto-actions {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
}

.contacto-email {
  font-family: var(--font-heading);
  font-size: clamp(1.2rem, 2.5vw, 1.65rem);
  font-weight: 600;
  color: var(--accent);
  word-break: break-all;
}

.contacto-email:hover { text-decoration: underline; }

.contacto-redes {
  display: flex;
  gap: 1.25rem;
}

.contacto-redes a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 0.4rem 0;
  border-bottom: 1px solid transparent;
}

.contacto-redes a:hover {
  color: var(--text);
  border-bottom-color: var(--border-light);
}

/* --- Footer --- */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.logo--footer {
  font-size: 1rem;
}

.footer p {
  font-size: 0.85rem;
  color: var(--text-subtle);
}

/* --- Animaciones --- */
[data-aos] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-aos].visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .hero-stats {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .stat-card {
    flex: 1;
    min-width: 140px;
  }

  .proyecto-card--featured {
    grid-template-columns: 1fr;
  }

  .proyecto-card--featured .proyecto-img {
    min-height: auto;
    aspect-ratio: 16 / 10;
  }

  .servicios-grid {
    grid-template-columns: 1fr;
  }

  .contacto-card {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 60px;
    left: var(--page-padding);
    right: var(--page-padding);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    flex-direction: column;
    padding: 1.25rem;
    gap: 0.25rem;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-links a {
    padding: 0.65rem 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child a {
    border-bottom: none;
  }

  .proyectos-grid {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-stats {
    flex-direction: column;
  }

  .stat-card {
    min-width: 0;
  }

  .stack-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}