/**
 * LB DataWorks Section Styles
 * Hero, services, about, CTA, and other sections
 */

/* ============================================
 * Header / Navigation
 * ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) 0;
  background: var(--bg-overlay);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-primary);
  transition: all var(--transition-normal);
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
}

.header__logo svg {
  width: 36px;
  height: 36px;
}

.header__logo-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header__logo-img {
  height: 28px;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.header__nav-link {
  padding: var(--space-2) var(--space-3);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.header__nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.header__nav-link.active {
  color: var(--accent-cyan);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Theme Toggle */
.theme-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.theme-toggle:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun { display: none; }

[data-theme="light"] .theme-toggle .icon-moon { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1);
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
}

.lang-switcher__btn {
  padding: var(--space-2) var(--space-3);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.lang-switcher__btn:hover {
  color: var(--text-primary);
}

.lang-switcher__btn.active {
  background: var(--gradient-primary);
  color: white;
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
}

.mobile-menu-btn svg {
  width: 20px;
  height: 20px;
}

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

  .mobile-menu-btn {
    display: flex;
  }

  .header__nav--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: var(--space-4);
    background: var(--bg-overlay);
    border-bottom: 1px solid var(--border-primary);
    backdrop-filter: blur(12px);
  }

  .header__nav--open .header__nav-link {
    padding: var(--space-3);
  }
}

/* ============================================
 * Hero Section
 * ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px; /* Header offset */
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(14, 165, 233, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(124, 58, 237, 0.1), transparent);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-8);
}

.hero__badge {
  margin-bottom: var(--space-6);
}

.hero__title {
  margin-bottom: var(--space-6);
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 1.1;
}

.hero__subtitle {
  font-size: var(--font-size-xl);
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto var(--space-8);
  line-height: var(--line-height-relaxed);
}

@media (max-width: 640px) {
  .hero__content {
    padding: var(--space-4);
  }

  .hero__title {
    /* Tighten the floor a bit further so titles like
       "Engenharia de SQL Server…" don't break one
       word per line on a 393px viewport. */
    font-size: clamp(1.75rem, 7vw, 2.5rem);
  }

  .hero__subtitle {
    font-size: var(--font-size-base);
  }

  .hero__linkedin {
    /* WCAG 2.5.5: target size ≥ 24x24 CSS px. Was just
       inline-flex without padding, measuring ~22px tall. */
    padding: var(--space-2) var(--space-4);
  }

  /* Hero CTA button: reduce padding + allow text-wrap on small screens */
  .hero__actions .btn--lg {
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-base);
    white-space: normal;
    text-align: center;
    max-width: 100%;
  }
}

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

.hero__linkedin {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.hero__linkedin:hover {
  color: var(--accent-cyan);
}

.hero__linkedin svg {
  width: 18px;
  height: 18px;
}

/* Hero Logo - Theme aware */
.hero__logo {
  display: block;
}

.hero__logo--dark {
  /* Visible by default (dark mode) */
}

.hero__logo--light {
  display: none;
}

[data-theme="dark"] .hero__logo--light {
  display: none;
}

[data-theme="light"] .hero__logo--dark {
  display: none;
}

[data-theme="light"] .hero__logo--light {
  display: block;
}

/* ============================================
 * Problems Section
 * ============================================ */
.problems {
  position: relative;
}

.problems__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-4);
}

/* ============================================
 * Services Section
 * ============================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-6);
}

/* ============================================
 * Technologies Section
 * ============================================ */
.technologies {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-primary);
  border-bottom: 1px solid var(--border-primary);
}

.technologies__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

/* ============================================
 * Why LB DataWorks Section
 * ============================================ */
.why__content {
  max-width: 800px;
  margin: 0 auto;
}

.why__list {
  display: grid;
  gap: var(--space-4);
}

.why__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--bg-surface);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.why__item:hover {
  border-color: var(--border-accent);
  background: var(--bg-elevated);
}

.why__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  color: white;
}

.why__icon svg {
  width: 24px;
  height: 24px;
}

.why__item-content h4 {
  margin-bottom: var(--space-2);
}

.why__item-content p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

/* ============================================
 * About Section (2-column layout - Heraflux-style)
 * ============================================ */
.about {
    padding-block: var(--section-padding-y);
}

.about__header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.about__title {
    margin: 0;
}

/* 2 Column Grid */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-12);
    align-items: start;
}

.about__col--left {
    text-align: center;
}

.about__col--right {
    padding-top: 0;
}

/* Photo - Square frame */
.about__photo-wrapper {
    margin-bottom: var(--space-5);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.about__photo {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 1/1;
    object-fit: cover;
    object-position: center 15%;
}

/* Intro Text */
.about__intro {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.about__divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #0EA5E9 0%, #2563EB 50%, #7C3AED 100%);
    margin-bottom: var(--space-6);
    border-radius: var(--radius-full);
}

.about__section-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.about__expect-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-8) 0;
    display: grid;
    gap: var(--space-3);
}

.about__expect-item {
    position: relative;
    padding-left: var(--space-6);
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

.about__expect-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, #0EA5E9 0%, #7C3AED 100%);
    border-radius: 50%;
}

.about__actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    max-width: 320px;
    margin: 0 auto;
}

.about__linkedin {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-normal);
    padding: var(--space-3) var(--space-5);
    background: var(--bg-elevated);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
}

.about__linkedin:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.about__linkedin svg {
    width: 18px;
    height: 18px;
}

/* Expertise Section */
.about__expertise {
    margin-bottom: var(--space-6);
}

.about__expertise-text {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
}

/* Final CTA */
.about__final-cta {
    margin-bottom: var(--space-6);
    text-align: center;
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
}

.about__cta-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.about__cta-text {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
}

/* Mobile - Stack columns */
@media (max-width: 900px) {
    .about__grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .about__col--left {
        position: relative;
        top: auto;
        max-width: 280px;
        margin: 0 auto;
    }

    .about__photo-wrapper {
        max-width: 280px;
        margin-left: auto;
        margin-right: auto;
    }

    .about__actions {
        flex-direction: column;
    }

    .about__linkedin {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
 * CTA Section
 * ============================================ */
.cta {
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 100% 100% at 50% 100%, rgba(14, 165, 233, 0.15), transparent),
    radial-gradient(ellipse 80% 80% at 50% 50%, rgba(124, 58, 237, 0.1), transparent);
  pointer-events: none;
}

.cta__content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-16) var(--space-8);
}

.cta__title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--space-4);
}

.cta__subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto var(--space-8);
}

/* ============================================
 * Footer
 * ============================================ */
.footer {
  padding: var(--space-8) 0;
  border-top: 1px solid var(--border-primary);
  background: var(--bg-surface);
}

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

/* Footer Logo */
.footer__brand {
  display: flex;
  align-items: center;
}

.footer__logo {
  height: 65px;
  width: auto;
  display: block;
}

.footer__logo--light {
  display: none;
}

[data-theme="dark"] .footer__logo--light {
  display: none !important;
}

[data-theme="light"] .footer__logo--dark {
  display: none;
}

[data-theme="light"] .footer__logo--light {
  display: block;
}

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

.footer__link {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--accent-cyan);
}

.footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer__social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}

.footer__social-link:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.footer__social-link svg {
  width: 18px;
  height: 18px;
}

.footer__social-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  transition: color var(--transition-normal);
}

.footer__social-link:hover .footer__social-text {
  color: var(--accent-cyan);
}

.footer__bottom {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-primary);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .footer__inner {
    flex-direction: column;
    text-align: center;
  }
}