/* UX layer: navigation, intent paths and reduced-friction CTAs */

#projetos,
#essencia,
#curso,
#confianca {
  scroll-margin-top: 5.75rem;
}

.site-header {
  position: fixed;
  padding-top: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(245, 242, 233, 0.12);
  background: rgba(17, 23, 22, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.8vw, 2.75rem);
  margin-left: auto;
  margin-right: clamp(1.25rem, 2.8vw, 2.75rem);
}

.primary-nav a {
  position: relative;
  padding: 0.55rem 0;
  color: rgba(245, 242, 233, 0.76);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0.35rem;
  left: 0;
  height: 1px;
  content: "";
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 180ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--paper-light);
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.header-cta {
  display: inline-flex;
  min-height: 2.7rem;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.1rem;
  border: 1px solid rgba(245, 242, 233, 0.58);
  border-radius: 999px;
  color: var(--ink);
  background: var(--paper-light);
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.header-cta:hover,
.header-cta:focus-visible {
  color: var(--paper-light);
  background: transparent;
  transform: translateY(-1px);
}

.primary-nav a:focus-visible,
.header-cta:focus-visible,
.hero-action:focus-visible,
.intent-actions a:focus-visible,
.mobile-nav summary:focus-visible,
.mobile-nav a:focus-visible {
  outline: 2px solid var(--paper-light);
  outline-offset: 4px;
}

.mobile-nav {
  display: none;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 0.4rem;
}

.hero-action {
  display: inline-flex;
  min-height: 3.35rem;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.35rem;
  border: 1px solid rgba(245, 242, 233, 0.62);
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.hero-action:hover,
.hero-action:focus-visible {
  transform: translateY(-2px);
}

.hero-action-primary {
  color: var(--ink);
  background: var(--paper-light);
}

.hero-action-primary:hover,
.hero-action-primary:focus-visible {
  color: var(--paper-light);
  background: transparent;
}

.hero-action-secondary {
  color: var(--paper-light);
  background: rgba(17, 23, 22, 0.16);
}

.hero-action-secondary:hover,
.hero-action-secondary:focus-visible {
  color: var(--ink);
  background: var(--paper-light);
}

.intent-paths {
  padding: clamp(4rem, 8vw, 7rem) var(--page-pad);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  background: var(--paper-light);
}

.intent-heading {
  display: grid;
  grid-template-columns: minmax(10rem, 0.45fr) minmax(0, 1.55fr);
  gap: clamp(2rem, 7vw, 8rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.intent-heading .eyebrow {
  margin: 0 0 0.55rem;
  color: var(--ink-soft);
}

.intent-heading h2 {
  max-width: 12ch;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.6rem, 5vw, 5.5rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.intent-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.intent-card {
  display: grid;
  min-height: 23rem;
  padding: clamp(1.8rem, 4vw, 3.4rem);
  grid-template-rows: auto 1fr auto;
  gap: 2.25rem;
}

.intent-card + .intent-card {
  border-left: 1px solid var(--line);
}

.intent-index {
  color: rgba(17, 23, 22, 0.42);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.intent-card h3 {
  max-width: 16ch;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 3.3vw, 3.5rem);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.intent-card p {
  max-width: 31rem;
  margin: 1.25rem 0 0;
  color: rgba(17, 23, 22, 0.64);
  font-size: 0.94rem;
}

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

.intent-actions a {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.1rem;
  border: 1px solid rgba(17, 23, 22, 0.34);
  border-radius: 999px;
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.intent-actions a:hover,
.intent-actions a:focus-visible {
  transform: translateY(-1px);
}

.intent-actions a:focus-visible {
  outline-color: var(--ink);
}

.intent-actions .intent-primary {
  border-color: var(--ink-soft);
  color: var(--paper-light);
  background: var(--ink-soft);
}

.intent-actions .intent-primary:hover,
.intent-actions .intent-primary:focus-visible {
  color: var(--ink-soft);
  background: transparent;
}

.course-inline-action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.85rem;
  margin-top: 2.25rem;
}

.course-inline-action .course-button {
  margin: 0;
}

.course-inline-action .course-payment-note {
  text-align: left;
}

/* Security hardening: keep floating CTA styles in a trusted stylesheet so CSP can block inline styles. */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 18px 0 14px;
  border-radius: 999px;
  background: #25d366;
  color: #07140c;
  font-family: var(--sans, "Manrope", Arial, Helvetica, sans-serif);
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(255, 255, 255, 0.12) inset;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.whatsapp-float:hover {
  transform: translateY(-3px);
  background: #2ee06f;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.34), 0 0 0 1px rgba(255, 255, 255, 0.16) inset;
}

.whatsapp-float:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: 3px;
}

.whatsapp-float-icon {
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
}

@media (max-width: 1100px) {
  .primary-nav {
    gap: 1.15rem;
    margin-right: 1.15rem;
  }

  .primary-nav a {
    font-size: 0.62rem;
  }

  .header-cta {
    padding-inline: 0.9rem;
    font-size: 0.6rem;
  }
}

@media (max-width: 900px) {
  .site-header {
    background: rgba(17, 23, 22, 0.92);
  }

  .primary-nav,
  .header-cta {
    display: none;
  }

  .mobile-nav {
    position: relative;
    display: block;
    margin-left: auto;
  }

  .mobile-nav summary {
    display: inline-flex;
    min-height: 2.65rem;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1rem;
    border: 1px solid rgba(245, 242, 233, 0.44);
    border-radius: 999px;
    color: var(--paper-light);
    font-size: 0.64rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    list-style: none;
    text-transform: uppercase;
    cursor: pointer;
  }

  .mobile-nav summary::-webkit-details-marker {
    display: none;
  }

  .mobile-nav summary::after {
    margin-left: 0.55rem;
    content: "+";
    font-size: 1rem;
    font-weight: 400;
    line-height: 1;
  }

  .mobile-nav[open] summary::after {
    content: "−";
  }

  .mobile-nav nav {
    position: absolute;
    top: calc(100% + 0.7rem);
    right: 0;
    display: grid;
    width: min(19rem, calc(100vw - 2.5rem));
    padding: 0.7rem;
    border: 1px solid rgba(17, 23, 22, 0.14);
    color: var(--ink);
    background: var(--paper-light);
    box-shadow: 0 1rem 3rem rgba(17, 23, 22, 0.22);
  }

  .mobile-nav nav a {
    padding: 0.9rem 0.8rem;
    border-bottom: 1px solid var(--line);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .mobile-nav nav a:focus-visible {
    outline-color: var(--ink);
  }

  .mobile-nav nav .mobile-nav-cta {
    margin-top: 0.7rem;
    border: 0;
    border-radius: 999px;
    color: var(--paper-light);
    text-align: center;
    background: var(--ink-soft);
  }

  .intent-heading {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .intent-grid {
    grid-template-columns: 1fr;
  }

  .intent-card {
    min-height: 20rem;
  }

  .intent-card + .intent-card {
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 640px) {
  .whatsapp-float {
    right: 16px;
    bottom: 16px;
    width: 56px;
    height: 56px;
    min-height: 56px;
    padding: 0;
    justify-content: center;
  }

  .whatsapp-float span {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .whatsapp-float-icon {
    width: 29px;
    height: 29px;
  }
}

@media (max-width: 560px) {
  #projetos,
  #essencia,
  #curso,
  #confianca {
    scroll-margin-top: 5rem;
  }

  .site-header {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .site-header .brand-mark {
    width: 2.45rem;
    height: 2.45rem;
  }

  .hero-copy {
    margin-top: -3rem;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: min(100%, 21rem);
  }

  .hero-action {
    width: 100%;
  }

  .intent-paths {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .intent-heading h2 {
    font-size: clamp(2.35rem, 12vw, 3.6rem);
  }

  .intent-card {
    min-height: 0;
    padding: 2rem 0.25rem;
    gap: 1.8rem;
  }

  .intent-card h3 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .intent-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .intent-actions a {
    width: 100%;
  }

  .course-inline-action {
    align-items: stretch;
  }

  .course-inline-action .course-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .primary-nav a::after,
  .header-cta,
  .hero-action,
  .intent-actions a,
  .whatsapp-float {
    transition: none;
  }
}