/* ======================================================
   ENVI Portal — Index Page Modern Styles
   ====================================================== */

:root {
  --c-primary:   #0B3D91;
  --c-secondary: #2BAE66;
  --c-dark:      #0D1117;
  --c-dark2:     #1A2436;
  --c-accent:    #00C8FF;
  --c-text:      #2D3748;
  --c-muted:     #718096;
  --c-light:     #F7F9FC;
  --c-white:     #FFFFFF;
  --c-border:    #E2E8F0;
  --radius:      10px;
  --shadow:      0 4px 20px rgba(0,0,0,.10);
  --shadow-lg:   0 8px 40px rgba(0,0,0,.18);
  --transition:  0.25s ease;
  --max-w:       1200px;
}

/* ======================================================
   HERO
   ====================================================== */

#main-background {
  position: relative;
  min-height: 92vh;
  background: url('/bg-1.jpg') center center / cover no-repeat fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#main-background::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    155deg,
    rgba(11,61,145,.78) 0%,
    rgba(13,17,23,.88) 65%
  );
}

.welcome-text {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem 1.5rem;
  color: var(--c-white);
  gap: .75rem;
}

.welcome-text h1 {
  font-size: clamp(4.5rem, 12vw, 9rem);
  font-weight: 700;
  letter-spacing: .06em;
  font-family: 'Inter', 'IBM Plex Sans', sans-serif;
  line-height: 1;
  text-shadow: 0 2px 24px rgba(0,0,0,.5);
  margin: 0;
}

.welcome-text h3 {
  font-size: clamp(0.85rem, 2vw, 1.15rem);
  font-weight: 500;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--c-secondary);
  margin: 0;
}

.welcome-text h2 {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: rgba(255,255,255,.82);
  max-width: 560px;
  line-height: 1.55;
  margin: 0;
}

/* ======================================================
   FEATURES BANNER
   ====================================================== */

#aspectos {
  background: var(--c-secondary);
  color: var(--c-white);
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

#aspectos h2 {
  font-size: clamp(0.95rem, 2.5vw, 1.3rem);
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ======================================================
   FEATURE SECTIONS (s1, s2, s3)
   ====================================================== */

#s1, #s2, #s3 {
  padding: 0;
  height: auto;
  overflow: hidden;
  background: none;
}

.feature-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 480px;
}

.feature-section.img-first .feature-image { order: -1; }

.feature-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem clamp(2rem, 5vw, 5rem);
}

.feature-text h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 1.25rem;
}

.feature-text p {
  font-size: clamp(.95rem, 1.5vw, 1.1rem);
  line-height: 1.8;
  opacity: .9;
}

.feature-image {
  overflow: hidden;
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .7s ease;
}

.feature-image img:hover { transform: scale(1.04); }

#s1 .feature-text {
  background: linear-gradient(140deg, #0a2e5e 0%, #1a4280 100%);
  color: var(--c-white);
}

#s2 .feature-text {
  background: linear-gradient(140deg, #0d2840 0%, #163d5e 100%);
  color: var(--c-white);
}

#s3 .feature-text {
  background: linear-gradient(140deg, #0d2b1a 0%, #1a4d2e 100%);
  color: var(--c-white);
}

@media (max-width: 768px) {
  .feature-section,
  .feature-section.img-first { grid-template-columns: 1fr; }
  .feature-section.img-first .feature-image { order: 0; }
  .feature-image { height: 280px; }
  .feature-text { padding: 2.5rem 1.5rem; }
}

/* ======================================================
   ENVI ECOSYSTEM (Dynamic Tabs)
   ====================================================== */

.dynamicTab-section {
  background: var(--c-light);
  padding: 5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--c-text);
}

.dynamicTab-section > h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: 1rem;
  text-align: center;
  border: none;
  padding: 0;
  font-family: 'Inter', 'IBM Plex Sans', sans-serif;
  width: auto;
}

.dynamicTab-section > p {
  max-width: 780px;
  text-align: center;
  color: var(--c-muted);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 2.5rem;
  padding: 0;
  font-weight: 400;
}

.dynamicTab {
  width: 100%;
  max-width: 1100px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.dynamic-tab-nav ul {
  display: flex;
  justify-content: center;
  gap: .5rem;
  flex-wrap: wrap;
  padding: 0;
  margin: 0 0 -1px;
}

.dynamic-tab-nav ul li {
  padding: .65rem 1.75rem;
  border-radius: 8px 8px 0 0;
  background: #e2e8f0;
  color: var(--c-muted);
  font-size: .95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  width: auto;
  height: auto;
  border: 1px solid var(--c-border);
  border-bottom: none;
}

.dynamic-tab-nav ul li:hover {
  background: #cbd5e0;
  color: var(--c-dark);
}

.dynamic-tab-nav ul li.inactive {
  background: var(--c-primary) !important;
  color: var(--c-white) !important;
  border-color: var(--c-primary) !important;
}

.dynamic-tabs {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: 0 var(--radius) var(--radius) var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  width: 100%;
}

.dynamic-tabs > div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2.5rem;
  padding: 2.5rem 3rem;
}

.dynamic-tabs > div:not(:first-of-type) { display: none; }

.dynamic-tab-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.dynamic-tabs h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.9rem);
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: 1.25rem;
  padding-bottom: .5rem;
  border-bottom: 2px solid var(--c-secondary);
  width: fit-content;
  padding-top: 0;
}

.dynamic-tabs div p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text) !important;
  padding: 0 0 .75rem;
}

.dynamic-tab-wrapper p a {
  color: var(--c-primary);
  text-decoration: underline;
  transition: color var(--transition);
}
.dynamic-tab-wrapper p a:hover { color: var(--c-secondary); }

#dynamic-tab-img {
  flex: 0 0 auto;
  max-width: 400px;
  padding: 0 !important;
}

#dynamic-tab-img img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0 !important;
  max-height: 360px;
  object-fit: cover;
}

@media (max-width: 768px) {
  .dynamic-tabs > div {
    flex-direction: column;
    padding: 2rem 1.5rem;
  }
  #dynamic-tab-img { max-width: 100%; }
  .dynamic-tab-nav ul li {
    padding: .5rem 1.2rem;
    font-size: .85rem;
    border-radius: 6px;
  }
}

/* ======================================================
   MODULES (#s4) — CSS Radio Tabs
   ====================================================== */

#s4 {
  background: var(--c-dark);
  color: var(--c-white);
  padding: 4rem 1.5rem 5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: auto;
}

#s4 > h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: .5rem;
  border: none;
  padding: 0;
}

#s4 > p {
  color: rgba(255,255,255,.5);
  font-size: .95rem;
  margin-bottom: 2.5rem;
  text-align: center;
}

.wrapper {
  width: 100%;
  max-width: 1150px;
  margin: 0 auto;
  padding: 0;
  min-height: 640px;
  height: fit-content;
}

.tabs {
  position: relative;
  background: transparent;
  height: fit-content;
  min-height: unset;
}

.tab { float: left; height: fit-content; }

.tab-switch { display: none; }

.tab-label {
  display: inline-block;
  line-height: 1;
  padding: .55rem 1.2rem;
  margin: 0 3px 0 0;
  color: rgba(255,255,255,.5);
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
  font-size: .88rem;
  font-weight: 500;
  letter-spacing: .02em;
  transition: background var(--transition), color var(--transition);
  height: 2.4rem;
}

.tab-label:hover {
  background: rgba(255,255,255,.12);
  color: var(--c-white);
}

.tab-switch:checked + .tab-label {
  background: var(--c-primary);
  color: var(--c-white);
  border-color: var(--c-primary);
  padding: .55rem 1.2rem;
  z-index: 1;
}

.tab-content {
  position: absolute;
  top: 2.4rem;
  left: 0;
  right: 0;
  opacity: 0;
  z-index: 1;
  display: flex;
  flex-direction: row;
  gap: 2.5rem;
  padding: 2.5rem;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 0 var(--radius) var(--radius) var(--radius);
  transition: opacity .3s ease;
  min-height: 420px;
  pointer-events: none;
}

.tab-switch:checked + .tab-label + .tab-content {
  opacity: 1;
  z-index: 2;
  pointer-events: auto;
}

.tab-content-left {
  flex: 1;
  padding-right: 0;
}

.tab-content-left h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: 1.25rem;
}

.tab-content-left h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--c-secondary);
  margin: 1.5rem 0 .4rem;
}

.tab-content-left p {
  font-size: .93rem;
  line-height: 1.75;
  margin-bottom: .85rem;
  color: rgba(255,255,255,.72);
}

.tab-content-left a {
  color: var(--c-secondary);
  text-decoration: underline;
  transition: color var(--transition);
}
.tab-content-left a:hover { color: var(--c-accent); }

.tab-content-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  flex: 0 0 260px;
}

.tab-content-right img {
  width: 100%;
  max-width: 260px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.tab-content-right button {
  background: var(--c-secondary);
  border: none;
  border-radius: 8px;
  padding: .6rem 1.4rem;
  color: var(--c-white);
  font-weight: 600;
  font-size: .88rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.tab-content-right button:hover {
  background: #1f9952;
  transform: translateY(-2px);
}

@media (max-width: 1000px) {
  .tab-label { font-size: .78rem; padding: .55rem .9rem; }
}

@media (max-width: 750px) {
  .tabs { display: flex; flex-wrap: wrap; }

  .tab-content {
    position: static;
    flex-direction: column;
    min-height: unset;
    padding: 1.5rem;
    border-radius: var(--radius);
    margin-top: .25rem;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity .3s, max-height .4s;
    border: 1px solid rgba(255,255,255,.1);
    pointer-events: none;
  }

  .tab-switch:checked + .tab-label + .tab-content {
    opacity: 1;
    max-height: 9999px;
    pointer-events: auto;
  }

  .tab-switch:checked + .tab-label {
    border-radius: 6px;
  }

  .tab-content-right { flex: none; width: 100%; }
  .wrapper { min-height: unset; }
  #s4 { padding-bottom: 3rem; }
}

/* ======================================================
   NEWS (#s5)
   ====================================================== */

#s5 {
  background: var(--c-dark2);
  padding: 4rem 2rem;
  height: auto;
}

.noticias {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3.5rem;
  align-items: start;
}

.noticias > div:first-child h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 600;
  color: var(--c-white);
  white-space: nowrap;
  padding-top: .2rem;
}

.noticias > div:last-child {
  display: flex;
  flex-direction: column;
}

.noticias p {
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin: 0;
}

.noticias p a {
  color: rgba(255,255,255,.65);
  font-size: .95rem;
  display: block;
  padding: .65rem 0;
  transition: color var(--transition), padding-left var(--transition);
}

.noticias p a:hover {
  color: var(--c-secondary);
  padding-left: .4rem;
}

@media (max-width: 600px) {
  .noticias { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ======================================================
   TRAINING CTA (#s6)
   ====================================================== */

#s6 {
  background: linear-gradient(135deg, var(--c-primary) 0%, #072470 100%);
  padding: 3.5rem 2rem;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  height: auto;
  max-width: 100%;
  width: 100%;
}

#s6 h2 {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 400;
  color: rgba(255,255,255,.88);
}

#s6 h2 a {
  color: var(--c-secondary);
  font-weight: 700;
  text-decoration: underline;
  transition: color var(--transition);
}

#s6 h2 a:hover { color: var(--c-white); }