/* =========================================
   CYBER-CORPORATE — Single Page 100dvh
   Fonts: BBH Bartle + DM Sans (Google Fonts)
   ========================================= */

/* ---------- Variables ---------- */
:root {
  --bg-primary: #131314;
  --text-primary: #f5f5f5;
  --accent-1: #4aff41;
  --accent-2: #ce1ccb;

  --font-heading: 'BBH Bartle', 'DM Sans', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;

  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  overflow: hidden;
}

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

ul {
  list-style: none;
}

/* ---------- Utilidades ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Header ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(1rem, 3vw, 1.75rem) clamp(1rem, 5vw, 3rem);
  flex-shrink: 0;
}

.brand {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  color: var(--accent-1);
  letter-spacing: 0.04em;
}

.availability {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(0.75rem, 1.5vw, 0.9rem);
  color: var(--text-primary);
}

.availability__dot {
  width: 0.5rem;
  height: 0.5rem;
  background-color: var(--accent-1);
  border-radius: 50%;
  box-shadow: 0 0 0.5rem var(--accent-1);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
    box-shadow: 0 0 0.5rem var(--accent-1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.2);
    box-shadow: 0 0 1rem var(--accent-1);
  }
}

/* ---------- Main / Hero ---------- */
.site-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 clamp(1rem, 5vw, 3rem);
  gap: clamp(2rem, 6vh, 4rem);
}

.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  flex: 1;
}

.hero__content {
  max-width: 75ch;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 9vw, 6.5rem);
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: clamp(1rem, 3vh, 1.5rem);
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  line-height: 1.6;
  color: var(--text-primary);
  opacity: 0.9;
  max-width: 55ch;
  margin-bottom: clamp(1.5rem, 4vh, 2.5rem);
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__tag {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(0.8rem, 1.5vw, 0.95rem);
  color: var(--text-primary);
  border: 1px solid var(--accent-2);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.85rem;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.hero__tag:hover {
  background-color: var(--accent-2);
  color: var(--text-primary);
}

/* ---------- Contacto ---------- */
.contact {
  flex-shrink: 0;
  padding-bottom: clamp(1rem, 3vh, 2rem);
}

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(0.75rem, 2vw, 1.25rem);
}

.contact__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: var(--text-primary);
  border: 1px solid var(--accent-2);
  border-radius: var(--radius-md);
  padding: 0.8rem 1.6rem;
  background-color: transparent;
  transition: color var(--transition-medium), border-color var(--transition-medium), box-shadow var(--transition-medium), transform var(--transition-medium);
  will-change: transform, box-shadow;
}

.contact__btn:hover,
.contact__btn:focus-visible {
  color: var(--accent-1);
  border-color: var(--accent-1);
  box-shadow: 0 0 1rem rgba(206, 28, 203, 0.45), 0 0 2rem rgba(206, 28, 203, 0.25);
  transform: translateY(-2px);
  outline: none;
}

.contact__btn:focus-visible {
  outline: 2px solid var(--accent-1);
  outline-offset: 3px;
}

/* ---------- Footer ---------- */
.site-footer {
  flex-shrink: 0;
  padding: clamp(0.75rem, 2vh, 1.25rem) clamp(1rem, 5vw, 3rem);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(0.7rem, 1.5vw, 0.85rem);
  color: rgba(245, 245, 245, 0.55);
  text-align: center;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .site-main {
    justify-content: space-between;
    padding-top: 1rem;
    padding-bottom: 1rem;
  }

  .hero {
    justify-content: center;
  }

  .contact__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .contact__btn {
    width: 100%;
  }
}

@media (max-height: 640px) {
  .site-main {
    gap: 1.5rem;
  }

  .hero__title {
    font-size: clamp(2rem, 10vh, 4rem);
  }

  .hero__subtitle {
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
  }
}