/* ============================================================
   Documentação Estratégica Atleta Moderno
   Paleta Busia: verde #1F7A4D + acento #4ECB8F + preto #1A1A1A + off-white #FAFAF8
   Tipografia: Inter
   ============================================================ */

:root {
  --color-primary: #1F7A4D;
  --color-primary-dark: #155834;
  --color-accent: #4ECB8F;
  --color-bg: #FAFAF8;
  --color-bg-alt: #F2F1EC;
  --color-text: #1A1A1A;
  --color-text-soft: #4A4A4A;
  --color-border: #D8D6CF;
  --color-code-bg: #EFEFE9;
  --color-white: #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --container: 1180px;
  --doc-max: 880px;
  --font-stack: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover,
a:focus {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

/* ============================================================
   Header global
   ============================================================ */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.site-header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--color-text);
  font-size: 17px;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-primary);
  color: var(--color-white);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.5px;
}

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name strong {
  color: var(--color-primary);
  font-size: 16px;
}

.brand-name span {
  font-size: 12px;
  color: var(--color-text-soft);
  font-weight: 500;
}

.header-nav {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

/* ============================================================
   Botões
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  line-height: 1.2;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

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

.btn-primary:hover,
.btn-primary:focus {
  background: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-soft);
  border-color: var(--color-border);
}

.btn-ghost:hover,
.btn-ghost:focus {
  background: var(--color-bg-alt);
  color: var(--color-text);
}

/* ============================================================
   Landing (index)
   ============================================================ */
.hero {
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  padding: 80px 24px 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(78, 203, 143, 0.25), transparent 60%);
  pointer-events: none;
}

.hero-inner {
  max-width: 880px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.5px;
}

.hero p {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255, 255, 255, 0.92);
  margin: 0 auto 8px;
  max-width: 680px;
}

.hero .hero-meta {
  margin-top: 24px;
  display: inline-flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.82);
}

.hero .hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cards {
  max-width: var(--container);
  margin: -60px auto 0;
  padding: 0 24px 80px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  position: relative;
  z-index: 2;
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.14);
}

.card-tag {
  align-self: flex-start;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 99px;
}

.card h2 {
  font-size: 24px;
  margin: 0;
  color: var(--color-text);
  letter-spacing: -0.3px;
}

.card-desc {
  color: var(--color-text-soft);
  margin: 0;
  font-size: 15px;
}

.card-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 0;
  border-top: 1px dashed var(--color-border);
  border-bottom: 1px dashed var(--color-border);
}

.card-stats div {
  font-size: 12px;
  color: var(--color-text-soft);
}

.card-stats strong {
  display: block;
  color: var(--color-primary);
  font-size: 18px;
  font-weight: 700;
}

.card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
}

.intro {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px 80px;
  color: var(--color-text-soft);
  font-size: 15px;
  line-height: 1.75;
}

.intro h3 {
  color: var(--color-text);
  font-size: 18px;
  margin: 0 0 12px;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.78);
  padding: 40px 24px;
  font-size: 13px;
}

.site-footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.site-footer strong {
  color: var(--color-white);
}

.site-footer a {
  color: var(--color-accent);
}

/* ============================================================
   Doc layout (PGE / POP)
   ============================================================ */
.doc-shell {
  max-width: var(--container);
  margin: 0 auto;
  padding: 32px 24px 80px;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
}

.doc-toc {
  position: sticky;
  top: 90px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  padding: 20px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  font-size: 13.5px;
}

.doc-toc-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-primary);
  margin: 0 0 12px;
}

.doc-toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.doc-toc li {
  margin: 4px 0;
}

.doc-toc a {
  color: var(--color-text-soft);
  display: block;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all 0.15s ease;
  text-decoration: none;
  line-height: 1.35;
}

.doc-toc a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
  text-decoration: none;
}

.doc-toc a.active {
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
  border-left-color: var(--color-primary);
  font-weight: 600;
}

.doc-toc ul ul {
  margin-left: 12px;
  border-left: 1px dashed var(--color-border);
  padding-left: 6px;
  margin-top: 2px;
  margin-bottom: 6px;
}

.doc-toc ul ul a {
  font-size: 12.5px;
  padding: 4px 8px;
}

/* Article content */
.doc-article {
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: 48px 56px;
  box-shadow: var(--shadow-sm);
  max-width: var(--doc-max);
  overflow-wrap: break-word;
  word-wrap: break-word;
}

.doc-article h1,
.doc-article h2,
.doc-article h3,
.doc-article h4 {
  color: var(--color-text);
  letter-spacing: -0.3px;
  scroll-margin-top: 90px;
}

.doc-article h1 {
  font-size: 32px;
  margin: 0 0 8px;
  font-weight: 800;
  line-height: 1.2;
}

.doc-article h2 {
  font-size: 24px;
  margin: 48px 0 16px;
  padding-top: 20px;
  border-top: 2px solid var(--color-primary);
  color: var(--color-primary-dark);
  font-weight: 700;
}

.doc-article h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

.doc-article h3 {
  font-size: 19px;
  margin: 32px 0 12px;
  color: var(--color-text);
  font-weight: 700;
}

.doc-article h4 {
  font-size: 16px;
  margin: 24px 0 10px;
  color: var(--color-primary-dark);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.doc-article p {
  margin: 12px 0;
  color: var(--color-text);
}

.doc-article ul,
.doc-article ol {
  padding-left: 24px;
  margin: 12px 0;
}

.doc-article li {
  margin: 6px 0;
}

.doc-article li > p {
  margin: 4px 0;
}

.doc-article strong {
  color: var(--color-text);
  font-weight: 700;
}

.doc-article hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 32px 0;
}

.doc-article blockquote {
  margin: 18px 0;
  padding: 14px 20px;
  border-left: 4px solid var(--color-primary);
  background: var(--color-bg-alt);
  color: var(--color-text-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
}

.doc-article code {
  background: var(--color-code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  color: var(--color-primary-dark);
}

.doc-article pre {
  background: var(--color-text);
  color: #E8E6DC;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.55;
  margin: 18px 0;
}

.doc-article pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

/* Tables responsivas */
.doc-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 14px;
  background: var(--color-white);
  display: block;
  overflow-x: auto;
  white-space: nowrap;
}

@media (min-width: 1024px) {
  .doc-article table {
    display: table;
    white-space: normal;
  }
}

.doc-article thead {
  background: var(--color-primary);
  color: var(--color-white);
}

.doc-article th {
  text-align: left;
  padding: 10px 14px;
  font-weight: 600;
  border: 1px solid var(--color-primary-dark);
}

.doc-article td {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  vertical-align: top;
}

.doc-article tbody tr:nth-child(even) {
  background: var(--color-bg-alt);
}

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 24px;
  padding: 14px 18px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text-soft);
}

.doc-meta strong {
  color: var(--color-primary-dark);
}

/* ============================================================
   Mobile
   ============================================================ */
@media (max-width: 980px) {
  .doc-shell {
    grid-template-columns: 1fr;
    padding: 24px 16px 60px;
    gap: 24px;
  }

  .doc-toc {
    position: static;
    max-height: 320px;
  }

  .doc-article {
    padding: 28px 22px;
  }

  .doc-article h1 {
    font-size: 26px;
  }

  .doc-article h2 {
    font-size: 20px;
  }

  .doc-article h3 {
    font-size: 17px;
  }
}

@media (max-width: 640px) {
  .site-header-inner {
    padding: 12px 16px;
  }

  .brand-name span {
    display: none;
  }

  .header-nav .btn {
    padding: 8px 12px;
    font-size: 13px;
  }

  .hero {
    padding: 56px 18px 80px;
  }

  .cards {
    margin-top: -40px;
    padding: 0 16px 60px;
  }

  .card {
    padding: 24px 20px;
  }

  .intro {
    padding: 0 16px 60px;
  }

  .site-footer {
    padding: 28px 18px;
  }

  .site-footer-inner {
    flex-direction: column;
    gap: 12px;
  }
}

/* Print-friendly */
@media print {
  .site-header,
  .site-footer,
  .doc-toc,
  .header-nav {
    display: none;
  }

  .doc-shell {
    grid-template-columns: 1fr;
    padding: 0;
  }

  .doc-article {
    border: none;
    box-shadow: none;
    padding: 0;
    max-width: 100%;
  }
}