/* ========================================
   LAYOUT.CSS
   Grid, containers, section structures,
   components, responsive breakpoints.
   Consumes tokens from tokens.css.
   Mobile-first approach.
   ======================================== */


/* === CONTAINERS === */
.nav__inner,
.hero__inner,
.tension__inner,
.reframe__inner,
.method__inner,
.proof__inner,
.faq__inner,
.cta-final__inner,
.footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  position: relative;
  padding: var(--space-section) 0;
}


/* === SECTION SHARED ELEMENTS === */
.section__label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.section__line {
  height: 1px;
  background: var(--color-border);
  margin-top: var(--space-section);
}


/* ========================================
   NAV
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 15, 14, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: transform var(--dur-normal) var(--ease-out);
}

.nav--hidden {
  transform: translateY(-100%);
}

.nav__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--nav-height);
}

.nav__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

.nav__cta {
  font-size: var(--text-small);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}

@media (min-width: 769px) {
  .nav__logo {
    font-size: 1.25rem;
  }
}


/* ========================================
   HERO
   ======================================== */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--space-lg);
  padding-top: calc(var(--nav-height) + var(--space-lg));
  position: relative;
  overflow: hidden;

  /* === BACKGROUND: gradient + vignette === */
  background:
    /* Teal glow — canto superior direito */
    radial-gradient(ellipse at 80% 5%, rgba(29, 158, 141, 0.11) 0%, transparent 55%),
    /* Segundo glow — canto inferior esquerdo */
    radial-gradient(ellipse at 5% 95%, rgba(29, 158, 141, 0.05) 0%, transparent 40%),
    /* Vignette — escurece as bordas */
    radial-gradient(ellipse at 50% 50%, transparent 30%, rgba(0, 0, 0, 0.55) 100%),
    /* Base: gradiente direcional sutil */
    linear-gradient(158deg, #161614 0%, #0F0F0E 45%, #121211 100%);
}

/* Noise pesado — sobrepõe o gradiente */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='250' height='250'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.80' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.07'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: 1;
}

/* Linha diagonal arquitetônica */
.hero::after {
  content: '';
  position: absolute;
  top: -15%;
  right: 22%;
  width: 1px;
  height: 130%;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(42, 42, 40, 0.5) 20%,
    rgba(29, 158, 141, 0.22) 58%,
    transparent 100%
  );
  transform: rotate(-7deg);
  transform-origin: top center;
  pointer-events: none;
  z-index: 1;
}

.hero__label {
  font-size: var(--text-label);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-hero);
  line-height: 0.95;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.hero__accent {
  color: var(--color-accent);
}

.hero__sub {
  font-size: var(--text-body);
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-text-dim);
  max-width: 42ch;
  margin-bottom: var(--space-lg);
}

.hero__inner {
  position: relative;
  z-index: 2;
}

.hero__line {
  position: absolute;
  bottom: 0;
  left: var(--container-pad);
  right: var(--container-pad);
  height: 1px;
  background: var(--color-border);
  z-index: 2;
}

@media (min-width: 769px) {
  .hero {
    padding-bottom: var(--space-xl);
  }

  .hero__label {
    margin-bottom: var(--space-lg);
  }

  .hero__sub {
    font-size: var(--text-h3);
  }

  .hero__title {
    max-width: 14ch;
  }
}


/* ========================================
   TENSION
   ======================================== */
.tension__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.tension__text {
  font-size: var(--text-body);
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-text-dim);
}

.tension__text--accent {
  font-size: var(--text-h3);
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--color-text);
}

@media (min-width: 769px) {
  .tension__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-lg) var(--grid-gap);
  }

  .tension__block {
    grid-column: 5 / -1;
  }

  .tension__text {
    font-size: var(--text-h3);
  }

  .tension__text--accent {
    font-size: var(--text-h2);
  }
}


/* ========================================
   REFRAME
   ======================================== */
.reframe__title {
  font-size: var(--text-h2);
  line-height: 1.15;
  max-width: 20ch;
  margin-bottom: var(--space-lg);
}

.reframe__body p {
  font-size: var(--text-body);
  color: var(--color-text-dim);
  margin-bottom: var(--space-md);
}

.reframe__body p:first-child {
  font-size: var(--text-h3);
  font-weight: 700;
  color: var(--color-text);
}

@media (min-width: 769px) {
  .reframe__body {
    max-width: 52ch;
    margin-left: auto;
  }
}


/* ========================================
   METHOD
   ======================================== */
.method__title {
  font-size: var(--text-h2);
  margin-bottom: var(--space-lg);
}

.method__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.method__step {
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-border);
}

.method__step.is-active {
  border-left-color: var(--color-accent);
}

.method__step-num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 700;
  color: var(--color-text-muted);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.method__step-title {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.method__step-desc {
  font-size: var(--text-body);
  color: var(--color-text-dim);
  max-width: 36ch;
}

@media (min-width: 769px) {
  .method__steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .method__step-num {
    font-size: var(--text-h1);
  }

  .method__title {
    margin-bottom: var(--space-xl);
  }
}


/* ========================================
   PROOF
   ======================================== */
.proof__title {
  font-size: var(--text-h2);
  margin-bottom: var(--space-lg);
}

.proof__metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.proof__metric-value {
  font-family: var(--font-display);
  font-size: var(--text-h1);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.proof__metric-unit {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: 700;
  color: var(--color-accent);
}

.proof__metric-label {
  display: block;
  font-size: var(--text-small);
  color: var(--color-text-dim);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: var(--space-xs);
}

.proof__quote {
  border-left: 2px solid var(--color-accent);
  padding-left: var(--space-md);
  margin-bottom: var(--space-lg);
}

.proof__quote p {
  font-size: var(--text-h3);
  font-weight: 300;
  font-style: italic;
}

.proof__quote cite {
  display: block;
  font-size: var(--text-small);
  font-style: normal;
  color: var(--color-text-dim);
  margin-top: var(--space-sm);
}

@media (min-width: 769px) {
  .proof__metrics {
    grid-template-columns: repeat(3, 1fr);
  }

  .proof__title {
    margin-bottom: var(--space-xl);
  }
}


/* ========================================
   FAQ
   ======================================== */
.faq__title {
  font-size: var(--text-h2);
  margin-bottom: var(--space-lg);
}

.faq__item {
  border-top: 1px solid var(--color-border);
}

.faq__item:last-child {
  border-bottom: 1px solid var(--color-border);
}

.faq__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
  cursor: pointer;
  list-style: none;
  font-size: var(--text-body);
  font-weight: 400;
  color: var(--color-text);
  transition: color var(--dur-fast);
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::marker {
  display: none;
  content: '';
}

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

.faq__icon {
  font-size: 1.5rem;
  color: var(--color-text-muted);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.faq__answer {
  padding-bottom: var(--space-md);
  max-width: 60ch;
  overflow: hidden;
}

.faq__answer p {
  font-size: var(--text-body);
  color: var(--color-text-dim);
  line-height: 1.7;
}

@media (min-width: 769px) {
  .faq__question {
    font-size: var(--text-h3);
  }

  .faq__title {
    margin-bottom: var(--space-xl);
  }
}


/* ========================================
   CTA FINAL
   ======================================== */
.cta-final {
  background: var(--color-surface);
  text-align: center;
  padding: clamp(6rem, 16vh, 14rem) 0;
}

.cta-final__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-h1);
  line-height: 1.05;
  margin-bottom: var(--space-lg);
}

.cta-final__sub {
  font-size: var(--text-body);
  color: var(--color-text-dim);
  max-width: 48ch;
  margin: 0 auto var(--space-lg);
  line-height: 1.7;
}


/* ========================================
   BUTTON
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 1rem 1.5rem;
  border: 2px solid var(--color-accent);
  background: transparent;
  color: var(--color-accent);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: color var(--dur-normal) var(--ease-out);
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-normal) var(--ease-out);
  z-index: -1;
}

.btn:hover {
  color: var(--color-bg);
}

.btn:hover::before {
  transform: scaleX(1);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn--primary::before {
  background: var(--color-accent-hover);
}

.btn__arrow {
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

@media (min-width: 769px) {
  .btn {
    padding: 1rem 2rem;
  }

  .btn--large {
    font-size: var(--text-h3);
    padding: 1.25rem 2.5rem;
  }
}


/* ========================================
   FOOTER
   ======================================== */
.footer {
  padding: var(--space-lg) 0;
}

.footer__line {
  height: 1px;
  background: var(--color-border);
  margin-bottom: var(--space-lg);
}

.footer__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  text-align: center;
}

.footer__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text-dim);
}

.footer__copy {
  font-size: var(--text-small);
  color: var(--color-text-muted);
}

@media (min-width: 769px) {
  .footer__content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}