:root {
  --ink: #151411;
  --ink-soft: #27231e;
  --ivory: #fffaf2;
  --paper: #ffffff;
  --gold: #b98535;
  --gold-dark: #7a5426;
  --sage: #38594b;
  --sage-light: #e8f0ea;
  --rose: #a23e57;
  --blue: #2e6687;
  --clay: #c46343;
  --muted: #6e655c;
  --line: rgba(21, 20, 17, 0.14);
  --shadow: 0 24px 70px rgba(21, 20, 17, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--ivory);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

body.menu-open,
body.chat-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button,
input {
  font: inherit;
  letter-spacing: 0;
}

button {
  cursor: pointer;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 40;
  width: 100%;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  color: var(--paper);
  transition: background 220ms ease, color 220ms ease, border-color 220ms ease;
}

.site-header.is-solid {
  color: var(--ink);
  background: rgba(255, 250, 242, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 42px;
  border: 1px solid currentColor;
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.25rem;
  font-weight: 700;
}

.brand-copy {
  max-width: 170px;
  font-size: 0.78rem;
  line-height: 1.15;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.95rem;
}

.nav-links a {
  position: relative;
  padding: 8px 0;
}

.nav-links a::after {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  content: "";
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

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

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  border-radius: 8px;
  color: inherit;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 88svh;
  overflow: hidden;
  display: grid;
  align-items: end;
  padding: 130px 32px 96px;
  color: var(--paper);
  isolation: isolate;
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-media {
  background-image: url("assets/retrato-biblioteca-calida.png");
  background-position: center center;
  background-size: cover;
  transform: scale(1.04);
}

.hero-shade {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(15, 13, 11, 0.84), rgba(15, 13, 11, 0.5) 46%, rgba(15, 13, 11, 0.08)),
    linear-gradient(0deg, rgba(15, 13, 11, 0.84), rgba(15, 13, 11, 0.04) 38%);
}

.hero-content {
  width: min(680px, 100%);
  margin-left: max(0px, calc((100vw - 1180px) / 2));
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--gold);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  line-height: 0.98;
}

h1 {
  margin-bottom: 22px;
  font-size: 5.75rem;
}

h2 {
  margin-bottom: 18px;
  font-size: 3.4rem;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.55rem;
  line-height: 1.12;
}

.hero-lede {
  max-width: 560px;
  margin-bottom: 30px;
  font-size: 1.35rem;
  line-height: 1.5;
}

.hero-actions,
.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

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

.button-primary {
  color: var(--ink);
  background: var(--gold);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #d7a859;
}

.button-ghost {
  color: var(--paper);
  border-color: rgba(255, 255, 255, 0.65);
  background: rgba(255, 255, 255, 0.12);
}

.button-secondary {
  color: var(--paper);
  background: var(--sage);
}

.hero-strip {
  position: absolute;
  right: max(32px, calc((100vw - 1180px) / 2));
  bottom: 24px;
  display: flex;
  gap: 10px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-strip span {
  padding-left: 10px;
  border-left: 2px solid var(--gold);
}

.course-section {
  position: relative;
  overflow: hidden;
  padding: 96px 32px;
  background:
    linear-gradient(135deg, rgba(184, 133, 53, 0.1), transparent 42%),
    var(--paper);
}

.course-section::after {
  position: absolute;
  top: 0;
  right: max(32px, calc((100vw - 1180px) / 2));
  width: 1px;
  height: 100%;
  content: "";
  background: var(--line);
}

.course-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
}

.course-visual {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
  margin: 0;
  border-radius: 8px;
  background: var(--ink);
  box-shadow: var(--shadow);
}

.course-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-visual figcaption {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 3px;
  min-width: 168px;
  padding: 14px 16px;
  border-left: 3px solid var(--gold);
  color: var(--paper);
  background: rgba(21, 20, 17, 0.88);
  backdrop-filter: blur(10px);
}

.course-visual figcaption span {
  color: var(--gold);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.course-visual figcaption strong {
  font-size: 0.96rem;
}

.course-copy h2 {
  max-width: 680px;
}

.course-intro {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.course-benefits {
  display: grid;
  gap: 0;
  max-width: 680px;
  margin: 30px 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.course-benefits li {
  position: relative;
  padding: 16px 12px 16px 38px;
  border-bottom: 1px solid var(--line);
  font-weight: 700;
  line-height: 1.45;
}

.course-benefits li::before {
  position: absolute;
  top: 21px;
  left: 10px;
  width: 12px;
  height: 12px;
  content: "";
  border: 3px solid var(--gold);
  border-radius: 50%;
}

.course-action {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.course-action span {
  color: var(--muted);
  font-size: 0.82rem;
}

.button.course-checkout.hotmart-fb {
  min-width: 210px;
  min-height: 54px;
  margin: 0;
  padding: 14px 24px;
  border: 1px solid var(--gold);
  border-radius: 8px;
  color: var(--ink);
  background: var(--gold);
  box-shadow: 0 12px 28px rgba(122, 84, 38, 0.24);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 900;
  text-decoration: none;
}

.button.course-checkout.hotmart-fb:hover,
.button.course-checkout.hotmart-fb:focus-visible {
  color: var(--ink);
  background: #d7a859;
  box-shadow: 0 16px 34px rgba(122, 84, 38, 0.3);
  transform: translateY(-2px);
}

.course-video-block {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(260px, 0.48fr) minmax(0, 1fr);
  gap: 54px;
  align-items: center;
  margin-top: 88px;
  padding-top: 72px;
  border-top: 1px solid var(--line);
}

.course-video-copy h3 {
  margin-bottom: 18px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  line-height: 1.08;
}

.course-video-copy p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.7;
}

.course-video-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ink);
  box-shadow: var(--shadow);
}

.course-video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.section {
  padding: 96px 32px;
}

.section-inner {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.intro-band {
  padding: 42px 32px;
  color: var(--paper);
  background: var(--ink);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: 52px;
  align-items: center;
}

.intro-grid h2 {
  margin-bottom: 0;
  font-size: 2.6rem;
}

.intro-grid p:last-child {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.08rem;
  line-height: 1.75;
}

.section-light {
  background: var(--ivory);
}

.section-ink {
  color: var(--paper);
  background: var(--ink-soft);
}

.section-sage {
  color: var(--paper);
  background: var(--sage);
}

.section-heading {
  max-width: 790px;
  margin-bottom: 44px;
}

.section-heading h2 {
  color: inherit;
}

.section-heading p:last-child,
.method-copy p,
.assistant-copy p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.section-ink .method-copy p,
.section-sage .assistant-copy p {
  color: rgba(255, 255, 255, 0.78);
}

.split-heading {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  gap: 40px;
  align-items: end;
}

.focus-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 24px;
}

.focus-tabs {
  display: grid;
  gap: 10px;
}

.focus-tab,
.method-step,
.quick-replies button {
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: var(--paper);
  font-weight: 800;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.focus-tab {
  min-height: 58px;
  padding: 0 18px;
  text-align: left;
}

.focus-tab:hover,
.focus-tab:focus-visible,
.focus-tab.is-active,
.method-step:hover,
.method-step:focus-visible,
.method-step.is-active {
  color: var(--paper);
  border-color: var(--sage);
  background: var(--sage);
}

.focus-panel {
  min-height: 330px;
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(184, 133, 53, 0.15), rgba(46, 102, 135, 0.08)),
    var(--paper);
  box-shadow: var(--shadow);
}

.panel-number {
  display: block;
  margin-bottom: 64px;
  color: var(--gold-dark);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 3.2rem;
}

.focus-panel p {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.7;
}

.method-grid,
.assistant-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1fr);
  gap: 56px;
  align-items: center;
}

.method-copy h2,
.assistant-copy h2 {
  font-size: 3.2rem;
}

.method-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 20px;
}

.method-step {
  min-width: 112px;
  min-height: 46px;
  padding: 0 18px;
}

.method-result {
  min-height: 64px;
  margin: 0;
  padding-left: 18px;
  border-left: 3px solid var(--gold);
  color: rgba(255, 255, 255, 0.84);
}

.feature-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  margin: 0;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.feature-image img,
.book-card img,
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-image img {
  object-position: center top;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.book-card {
  overflow: hidden;
  display: grid;
  grid-template-rows: auto auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: 0 18px 52px rgba(21, 20, 17, 0.1);
}

.book-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  object-position: center center;
  background: #efe5d6;
}

.book-copy {
  padding: 28px;
}

.book-kicker {
  margin-bottom: 10px;
  color: var(--rose);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

.book-copy p {
  color: var(--muted);
  line-height: 1.65;
}

.gallery-section {
  overflow: hidden;
  padding: 26px 0;
  background: var(--paper);
}

.gallery-track {
  display: grid;
  width: min(1300px, calc(100% - 32px));
  margin: 0 auto;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 14px;
}

.gallery-item {
  overflow: hidden;
  aspect-ratio: 3 / 4;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: var(--ink);
}

.gallery-item img {
  transition: transform 280ms ease, opacity 280ms ease;
}

.gallery-item:hover img,
.gallery-item:focus-visible img {
  opacity: 0.88;
  transform: scale(1.05);
}

.assistant-copy {
  align-self: start;
}

.social-row {
  margin-top: 26px;
}

.social-row a {
  min-height: 46px;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  font-weight: 800;
}

.social-row a:hover,
.social-row a:focus-visible {
  color: var(--ink);
  background: var(--paper);
}

.chat-shell {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  color: var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 62px;
  padding: 0 18px;
  color: var(--paper);
  background: var(--ink);
}

.chat-header > div {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #5bd076;
  box-shadow: 0 0 0 4px rgba(91, 208, 118, 0.18);
}

.chat-close,
.modal-close {
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 8px;
  color: inherit;
  background: transparent;
  font-size: 1.6rem;
}

.inline-close {
  display: none;
}

.chat-log {
  height: 286px;
  overflow-y: auto;
  padding: 18px;
  background: #f7f4ee;
}

.message {
  width: fit-content;
  max-width: 86%;
  margin-bottom: 12px;
  padding: 12px 14px;
  border-radius: 8px;
  line-height: 1.45;
}

.message.bot {
  color: var(--ink);
  background: var(--paper);
}

.message.user {
  margin-left: auto;
  color: var(--paper);
  background: var(--sage);
}

.quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 18px 0;
}

.quick-replies button {
  min-height: 38px;
  padding: 0 12px;
  font-size: 0.9rem;
}

.chat-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 90px;
  gap: 10px;
  padding: 14px 18px 18px;
}

.chat-form input {
  min-width: 0;
  height: 46px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.chat-form button {
  border: 0;
  border-radius: 8px;
  color: var(--paper);
  background: var(--rose);
  font-weight: 800;
}

.floating-chat-button {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 38;
  min-height: 52px;
  padding: 0 18px;
  border: 0;
  border-radius: 8px;
  color: var(--ink);
  background: var(--gold);
  box-shadow: 0 14px 34px rgba(21, 20, 17, 0.28);
  font-weight: 900;
}

.chat-button-icon {
  position: relative;
  display: inline-block;
  width: 19px;
  height: 15px;
  margin-right: 9px;
  border: 2px solid currentColor;
  border-radius: 5px;
}

.chat-button-icon::after {
  position: absolute;
  left: 2px;
  bottom: -5px;
  width: 6px;
  height: 6px;
  content: "";
  border-left: 2px solid currentColor;
  transform: skewY(-38deg);
}

.chat-widget {
  position: fixed;
  right: 22px;
  bottom: 88px;
  z-index: 45;
  width: min(390px, calc(100vw - 32px));
}

.site-footer {
  padding: 30px 32px;
  color: var(--paper);
  background: var(--ink);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-inner div {
  display: grid;
  gap: 4px;
}

.footer-inner span {
  color: rgba(255, 255, 255, 0.68);
}

.footer-inner a {
  color: var(--gold);
  font-weight: 800;
}

.image-modal {
  width: min(760px, calc(100% - 32px));
  max-height: calc(100svh - 42px);
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: var(--ink);
  box-shadow: var(--shadow);
}

.image-modal::backdrop {
  background: rgba(10, 9, 8, 0.78);
}

.image-modal img {
  width: 100%;
  max-height: calc(100svh - 42px);
  object-fit: contain;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  color: var(--paper);
  background: rgba(21, 20, 17, 0.62);
}

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  h1 {
    font-size: 4.35rem;
  }

  h2 {
    font-size: 2.75rem;
  }

  .site-header {
    padding: 0 18px;
  }

  .nav-links {
    position: fixed;
    inset: 72px 18px auto 18px;
    display: none;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    background: var(--paper);
    box-shadow: var(--shadow);
  }

  body.menu-open .nav-links {
    display: grid;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    min-height: 84svh;
    padding: 118px 22px 86px;
  }

  .hero-strip {
    left: 22px;
    right: 22px;
    justify-content: flex-start;
    overflow-x: auto;
  }

  .intro-grid,
  .split-heading,
  .focus-layout,
  .method-grid,
  .assistant-grid,
  .book-grid,
  .course-grid {
    grid-template-columns: 1fr;
  }

  .course-grid {
    gap: 42px;
  }

  .course-video-block {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .course-visual {
    width: min(680px, 100%);
  }

  .method-grid,
  .assistant-grid {
    gap: 36px;
  }

  .focus-tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .focus-tab {
    min-height: 50px;
    padding: 0 10px;
    text-align: center;
  }

  .book-card {
    grid-template-rows: auto auto;
  }

  .gallery-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .brand-copy {
    display: none;
  }

  .brand-mark {
    width: 50px;
  }

  h1 {
    font-size: 3.15rem;
  }

  h2,
  .method-copy h2,
  .assistant-copy h2 {
    font-size: 2.15rem;
  }

  h3 {
    font-size: 1.3rem;
  }

  .hero {
    min-height: 82svh;
  }

  .hero-media {
    background-position: 54% center;
  }

  .hero-lede {
    font-size: 1.08rem;
  }

  .button {
    width: 100%;
  }

  .section,
  .intro-band,
  .course-section {
    padding-left: 18px;
    padding-right: 18px;
  }

  .section,
  .course-section {
    padding-top: 70px;
    padding-bottom: 70px;
  }

  .course-grid {
    gap: 32px;
  }

  .course-video-block {
    margin-top: 60px;
    padding-top: 52px;
  }

  .course-video-copy h3 {
    font-size: 1.65rem;
  }

  .course-visual figcaption {
    right: 10px;
    bottom: 10px;
  }

  .course-action {
    align-items: flex-start;
    flex-direction: column;
  }

  .focus-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .focus-panel {
    min-height: 280px;
    padding: 26px;
  }

  .panel-number {
    margin-bottom: 42px;
  }

  .book-card {
    grid-template-rows: auto auto;
  }

  .book-copy {
    padding: 22px;
  }

  .gallery-track {
    width: calc(100% - 20px);
    gap: 10px;
  }

  .chat-widget {
    inset: 88px 12px auto 12px;
    width: auto;
  }

  .chat-log {
    height: min(330px, calc(100svh - 306px));
  }

  .floating-chat-button {
    right: 14px;
    bottom: 14px;
    display: grid;
    width: 52px;
    min-height: 52px;
    place-items: center;
    padding: 0;
    border-radius: 50%;
  }

  .chat-button-icon {
    margin-right: 0;
  }

  .floating-chat-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}