/* ============================================================
   OCR LTDA — BASE.CSS
   Variables globales, reset, tipografía y componentes compartidos
   Versión: 1.0 | 2025
   ============================================================ */

/* ── 1. VARIABLES ── */
:root {
  /* Paleta de color */
  --orange:        #E8700A;
  --orange-light:  #F5902C;
  --orange-dark:   #B85508;
  --dark:          #111110;
  --dark-2:        #1A1A18;
  --dark-3:        #242422;
  --dark-4:        #2E2E2B;
  --gray:          #888780;
  --gray-light:    #C4C2B8;
  --cream:         #F0EDE4;
  --white:         #FAFAF8;

  /* Colores semánticos para badges de categoría */
  --cat-normativa-bg:      rgba(232, 112,  10, 0.12);
  --cat-normativa-color:   #F5902C;
  --cat-normativa-border:  rgba(232, 112,  10, 0.25);
  --cat-paper-bg:          rgba(136, 135, 128, 0.15);
  --cat-paper-color:       #C4C2B8;
  --cat-paper-border:      rgba(136, 135, 128, 0.25);
  --cat-tecnologia-bg:     rgba( 45, 110, 180, 0.12);
  --cat-tecnologia-color:  #7aafdf;
  --cat-tecnologia-border: rgba( 45, 110, 180, 0.25);
  --cat-medio-bg:          rgba( 60, 130,  60, 0.12);
  --cat-medio-color:       #82c482;
  --cat-medio-border:      rgba( 60, 130,  60, 0.25);

  /* Tipografía */
  --font-condensed: 'Barlow Condensed', sans-serif;
  --font-body:      'Barlow', sans-serif;

  /* Espaciado */
  --section-pad: 6rem 5%;
  --nav-height:  70px;

  /* Bordes */
  --radius-sm: 2px;
  --radius-md: 4px;
}

/* ── 2. RESET ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--dark);
  color: var(--cream);
  overflow-x: hidden;
  line-height: 1.6;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }

/* ── 3. TIPOGRAFÍA ── */
.section-tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1rem;
}

.section-title {
  font-family: var(--font-condensed);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.divider-line {
  width: 60px;
  height: 3px;
  background: var(--orange);
  margin-bottom: 2.5rem;
}

/* ── 4. SECCIONES ── */
section {
  padding: var(--section-pad);
}

/* ── 5. BOTONES ── */
.btn-primary {
  background: var(--orange);
  color: var(--dark) !important;
  padding: 1rem 2.5rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  display: inline-block;
}
.btn-primary:hover {
  background: var(--orange-light);
  color: var(--dark) !important;
  transform: translateY(-2px);
}

.btn-ghost {
  border: 1px solid rgba(240, 237, 228, 0.2);
  color: var(--cream);
  padding: 1rem 2rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, color 0.2s;
  display: inline-block;
}
.btn-ghost:hover {
  border-color: var(--orange);
  color: var(--orange);
}

/* Variante compacta (para blog/sidebar) */
.btn-primary--sm { padding: 0.9rem 2rem; font-size: 0.82rem; }
.btn-ghost--sm   { padding: 0.9rem 1.75rem; font-size: 0.82rem; }

/* ── 6. NAVEGACIÓN ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(17, 17, 16, 0.93);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(232, 112, 10, 0.2);
  padding: 0 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
}

/* sticky (páginas interiores) */
nav.sticky {
  position: sticky;
  top: 0;
}

.nav-logo {
  font-family: var(--font-condensed);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 2px;
  text-decoration: none;
}
.nav-logo span { color: var(--orange); }

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--gray-light);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--orange); }

.nav-links a.nav-cta {
  background: var(--orange);
  color: var(--dark);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}
.nav-links a.nav-cta:hover { background: var(--orange-light); color: var(--dark); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--cream);
}

/* ── 7. FOOTER ── */
footer {
  background: var(--dark);
  border-top: 1px solid var(--dark-3);
  padding: 3rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-brand {
  font-family: var(--font-condensed);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 2px;
}
.footer-brand span { color: var(--orange); }

.footer-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 0.78rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gray);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--orange); }

.footer-copy {
  font-size: 0.8rem;
  color: var(--dark-4);
  width: 100%;
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--dark-3);
  margin-top: 0.5rem;
}

/* ── 8. FORMULARIOS ── */
.form-group    { margin-bottom: 1.25rem; }
.form-row      { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-submit   { margin-top: 1.5rem; display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 0.5rem;
}

input, textarea, select {
  width: 100%;
  background: var(--dark-3);
  border: 1px solid var(--dark-4);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 300;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--orange); }
input::placeholder, textarea::placeholder { color: #3a3a37; }
textarea { resize: vertical; min-height: 130px; }

/* ── 9. BADGES DE CATEGORÍA ── */
.cat-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
  border-radius: 1px;
}
.cat-normativa   { background: var(--cat-normativa-bg);   color: var(--cat-normativa-color);   border: 1px solid var(--cat-normativa-border); }
.cat-paper       { background: var(--cat-paper-bg);       color: var(--cat-paper-color);       border: 1px solid var(--cat-paper-border); }
.cat-tecnologia  { background: var(--cat-tecnologia-bg);  color: var(--cat-tecnologia-color);  border: 1px solid var(--cat-tecnologia-border); }
.cat-medioambiente { background: var(--cat-medio-bg);     color: var(--cat-medio-color);       border: 1px solid var(--cat-medio-border); }

/* ── 10. BREADCRUMB ── */
.breadcrumb {
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 1.5rem;
}
.breadcrumb a { color: var(--orange); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* ── 11. ANIMACIONES ── */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}
@keyframes scrollAnim {
  0%   { opacity: 1; transform: scaleY(1);   transform-origin: top; }
  100% { opacity: 0; transform: scaleY(0);   transform-origin: top; }
}

/* ── 12. RESPONSIVE BASE ── */
@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-height); left: 0; right: 0;
    background: var(--dark-2);
    flex-direction: column;
    padding: 2rem 5%;
    gap: 1.5rem;
    border-bottom: 1px solid var(--dark-3);
  }
  .nav-links.open { display: flex; }

  .form-row { grid-template-columns: 1fr; }

  footer {
    flex-direction: column;
    text-align: center;
  }
  .footer-links { justify-content: center; }
}