/* ============================================================
   LAYOUT — Liga da Aprendizagem
   Header, Footer, Container, Grid, Sections
   ============================================================ */

/* ------------------------------------------------------------
   1. CONTAINER
   ------------------------------------------------------------ */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-5);
  padding-right: var(--space-5);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

.container--narrow {
  max-width: 800px;
}

.container--wide {
  max-width: 1400px;
}

/* ------------------------------------------------------------
   2. GRID
   ------------------------------------------------------------ */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* Grid com coluna de destaque */
.grid--hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  align-items: center;
}

@media (min-width: 1024px) {
  .grid--hero {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

/* ------------------------------------------------------------
   3. SEÇÕES
   ------------------------------------------------------------ */
.section {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
  }
}

.section--sm {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.section--dark {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section--gray {
  background-color: var(--color-gray-50);
}

.section--accent {
  background: var(--color-accent-gradient);
  color: var(--color-white);
}

.section--accent h1,
.section--accent h2,
.section--accent h3,
.section--accent h4 {
  color: var(--color-white);
}

.section__header {
  margin-bottom: var(--space-10);
}

@media (min-width: 768px) {
  .section__header {
    margin-bottom: var(--space-12);
  }
}

.section__header--center {
  text-align: center;
}

/* ------------------------------------------------------------
   4. HEADER
   ------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-navy);
  border-bottom: 1px solid rgba(255,255,255,.06);
  padding: var(--space-4) 0;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Logo */
.site-header__logo {
  flex-shrink: 0;
}

.site-header__logo img {
  height: 44px;
  width: auto;
}

/* Nav */
.site-header__nav {
  display: none;
}

@media (min-width: 1024px) {
  .site-header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
  }
}

.nav__link {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: rgba(255,255,255,.75);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-white);
}

/* CTA no header */
.site-header__cta {
  display: none;
}

@media (min-width: 768px) {
  .site-header__cta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }
}

/* Botão menu mobile */
.site-header__menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

@media (min-width: 1024px) {
  .site-header__menu-btn {
    display: none;
  }
}

.site-header__menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* Menu mobile aberto */
.site-header__mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-navy-dark);
  z-index: 200;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
}

.site-header__mobile-nav.is-open {
  display: flex;
}

.mobile-nav__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  background: none;
  border: none;
  color: var(--color-white);
  font-size: var(--text-2xl);
  cursor: pointer;
}

.mobile-nav__link {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-white);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.mobile-nav__link:hover {
  color: var(--color-accent-light);
}

/* ------------------------------------------------------------
   5. HERO
   ------------------------------------------------------------ */
.hero {
  position: relative;
  background-color: var(--color-navy);
  color: var(--color-white);
  overflow: hidden;
  padding: var(--space-16) 0;
  min-height: 85vh;
  display: flex;
  align-items: center;
}

@media (min-width: 768px) {
  .hero { padding: var(--space-20) 0; }
}

/* Decoração de fundo */
.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(123,47,190,.25) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(123,47,190,.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero h1,
.hero h2 {
  color: var(--color-white);
}

.hero__eyebrow {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: var(--space-4);
  display: block;
}

.hero__title {
  font-family: var(--font-heading);
  font-weight: var(--weight-black);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-6);
}

.hero__title .highlight {
  color: var(--color-accent-light);
}

.hero__subtitle {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: rgba(255,255,255,.78);
  margin-bottom: var(--space-8);
  max-width: 580px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.hero__image {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero__image img {
  max-height: 480px;
  width: auto;
  margin: 0 auto;
}

/* Hero de curso — mais compacto */
.hero--curso {
  min-height: auto;
  padding: var(--space-12) 0 var(--space-16);
  background: var(--color-accent-gradient);
}

.hero--curso::before,
.hero--curso::after {
  display: none;
}

/* ------------------------------------------------------------
   6. FOOTER
   ------------------------------------------------------------ */
.site-footer {
  background-color: var(--color-navy-dark);
  color: rgba(255,255,255,.65);
  padding: var(--space-12) 0 var(--space-6);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

@media (min-width: 640px) {
  .site-footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
    gap: var(--space-6);
  }
}

.footer-col__logo {
  height: 32px;
  width: auto;
  margin-bottom: var(--space-3);
}

.footer-col__desc {
  font-size: var(--text-xs);
  line-height: 1.55;
  color: rgba(255,255,255,.45);
  max-width: 280px;
}

.footer-col__title {
  font-family: var(--font-heading);
  font-size: 10px;
  font-weight: var(--weight-bold);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.footer-col__links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-col__link {
  font-size: var(--text-xs);
  line-height: 1.25;
  color: rgba(255,255,255,.45);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-col__link:hover {
  color: var(--color-white);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copy {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.35);
}

.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.65);
  font-size: var(--text-base);
  transition: background var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
}

.footer__social-link:hover {
  background: var(--color-accent);
  color: var(--color-white);
}