/* ==========================================================================
   DATALAB CONSULTORIA — stylesheet
   ========================================================================== */

:root {
  /* Brand colors (from logo) */
  --color-black: #1a1d23;
  --color-blue: #2f7fe0;
  --color-blue-dark: #1f5fb8;
  --color-green: #2f9e5c;
  --color-orange: #ef7f2d;

  --color-text: #2a2e35;
  --color-text-light: #5b616d;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f8fc;
  --color-border: #e6ebf1;

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius: 14px;
  --shadow: 0 10px 30px rgba(20, 30, 60, 0.08);
  --container-width: 1180px;
}

/* ---------- Reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select { font-family: inherit; font-size: 1rem; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-black);
  line-height: 1.2;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
  color: #fff;
  box-shadow: 0 8px 20px rgba(47, 127, 224, 0.35);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(47, 127, 224, 0.45); }

.btn--outline {
  background: transparent;
  color: var(--color-blue-dark);
  border: 2px solid var(--color-blue);
}
.btn--outline:hover { background: var(--color-blue); color: #fff; transform: translateY(-2px); }

.btn--lg { padding: 15px 34px; font-size: 1rem; }

/* ---------- Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.25s ease;
}
.header.is-scrolled { box-shadow: 0 6px 20px rgba(20, 30, 60, 0.08); }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 24px;
}

.logo img { height: 42px; width: auto; }

.nav__list {
  display: flex;
  gap: 28px;
}

.nav__link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  position: relative;
  padding: 6px 0;
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--color-blue);
  transition: width 0.25s ease;
}
.nav__link:hover::after { width: 100%; }
.nav__link:hover { color: var(--color-blue-dark); }

.header__cta { flex-shrink: 0; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-black);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav__toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-active span:nth-child(2) { opacity: 0; }
.nav__toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(circle at 15% 20%, rgba(47, 127, 224, 0.10), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(47, 158, 92, 0.10), transparent 45%),
    var(--color-bg-alt);
  padding: 90px 0 80px;
}

.hero__inner { text-align: center; }
.hero__content { max-width: 780px; margin: 0 auto; }

.hero__eyebrow {
  color: var(--color-blue-dark);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.4px;
  margin-bottom: 18px;
}

.hero__title {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  letter-spacing: 1px;
  margin-bottom: 22px;
}
.hero__brand { display: inline; color: var(--color-black); }
.hero__brand--accent { color: var(--color-blue); }

.hero__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 620px;
  margin: 0 auto 36px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Sections ---------- */
.section { padding: 90px 0; }
.section--alt { background: var(--color-bg-alt); }
.section--dark {
  background: linear-gradient(135deg, var(--color-black), #262b35);
  color: #dfe3ea;
}
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark .section__desc { color: #b7bec9; }

.section__head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}

.section__tag {
  display: inline-block;
  color: var(--color-blue-dark);
  background: rgba(47, 127, 224, 0.1);
  padding: 6px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 16px;
}
.section--dark .section__tag {
  color: #8fc0ff;
  background: rgba(143, 192, 255, 0.12);
}

.section__title { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 14px; }
.section__desc { color: var(--color-text-light); font-size: 1.05rem; }
.section__note {
  text-align: center;
  margin-top: 40px;
  font-style: italic;
  color: var(--color-text-light);
}

/* ---------- Compare (problemas / solução) ---------- */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.compare__card {
  padding: 36px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.compare__card--problem { background: #fff5f2; border: 1px solid #fcded3; }
.compare__card--solution { background: #f1faf4; border: 1px solid #cdeed9; }
.compare__card h3 { margin-bottom: 20px; }

.check-list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 14px;
  color: var(--color-text);
}
.check-list li::before {
  position: absolute;
  left: 0;
  top: 1px;
  font-weight: 700;
}
.check-list--x li::before { content: '✕'; color: #e0563f; }
.check-list--ok li::before { content: '✓'; color: var(--color-green); }

/* ---------- Services ---------- */
.services {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease;
}
.service-card:hover { transform: translateY(-4px); }
.service-card__icon { font-size: 2.2rem; margin-bottom: 16px; }
.service-card h3 { margin-bottom: 8px; }
.service-card > p { color: var(--color-text-light); margin-bottom: 20px; }

/* ---------- Audience ---------- */
.audience {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.audience__card {
  text-align: center;
  padding: 34px 22px;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.audience__card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.audience__icon { font-size: 2rem; margin-bottom: 14px; }
.audience__card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.audience__card p { color: var(--color-text-light); font-size: 0.92rem; }

/* ---------- Why us ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 50px;
}
.why-card {
  padding: 28px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}
.why-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.why-card p { color: #b7bec9; font-size: 0.92rem; }

.quote {
  text-align: center;
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 600;
  color: #fff;
  max-width: 680px;
  margin: 0 auto;
}
.quote span { color: var(--color-orange); }
.quote cite {
  display: block;
  margin-top: 16px;
  font-style: normal;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.95rem;
  color: #8f97a3;
}

/* ---------- Steps ---------- */
.steps {
  counter-reset: step;
  display: grid;
  gap: 22px;
  max-width: 720px;
  margin: 0 auto;
}
.step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 24px 28px;
  border-radius: var(--radius);
}
.step__number {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-heading);
}
.step h3 { font-size: 1.05rem; margin-bottom: 4px; }
.step p { color: var(--color-text-light); font-size: 0.95rem; }

/* ---------- Expect grid ---------- */
.expect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  max-width: 900px;
  margin: 0 auto;
}
.expect-grid li {
  position: relative;
  padding: 18px 18px 18px 48px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-weight: 500;
}
.expect-grid li::before {
  content: '✓';
  position: absolute;
  left: 18px;
  top: 18px;
  color: var(--color-green);
  font-weight: 700;
}

/* ---------- Blog ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.blog-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease;
}
.blog-card:hover { transform: translateY(-4px); }
.blog-card__cat {
  display: inline-block;
  align-self: flex-start;
  background: rgba(47, 127, 224, 0.1);
  color: var(--color-blue-dark);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.blog-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.blog-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  flex-grow: 1;
  margin-bottom: 18px;
}
.blog-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
}
.blog-card__link { color: var(--color-blue-dark); font-weight: 600; }
.blog-card__meta time { color: #97a0ac; }

/* ---------- Form ---------- */
.form {
  max-width: 640px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 40px;
  border-radius: var(--radius);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form__field { margin-bottom: 18px; }
.form__field label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #dfe3ea;
}
.form__field input,
.form__field select {
  width: 100%;
  padding: 13px 16px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}
.form__field input::placeholder { color: #8f97a3; }
.form__field input:focus,
.form__field select:focus {
  outline: none;
  border-color: var(--color-blue);
  background: rgba(255, 255, 255, 0.09);
}
.form__field select option { color: #1a1d23; }

.form__field--checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.form__field--checkbox input { width: auto; margin-top: 3px; }
.form__field--checkbox label { margin: 0; font-size: 0.85rem; color: #b7bec9; }
.form__field--checkbox a { color: #8fc0ff; text-decoration: underline; }

.form__submit { width: 100%; margin-top: 6px; }
.form__hint {
  text-align: center;
  font-size: 0.8rem;
  color: #8f97a3;
  margin-top: 12px;
}

.form__field.has-error input,
.form__field.has-error select {
  border-color: #e0563f;
}

/* ---------- WhatsApp float button ---------- */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 60px;
  height: 60px;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px rgba(37, 211, 102, 0.45);
  z-index: 90;
  transition: transform 0.25s ease;
}
.whatsapp-float:hover { transform: scale(1.08); }

/* ---------- Footer ---------- */
.footer { background: var(--color-black); color: #b7bec9; padding-top: 60px; }
.footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer__logo { height: 34px; margin-bottom: 14px; filter: brightness(0) invert(1); }
.footer__col p { font-size: 0.9rem; line-height: 1.6; }
.footer__col h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; }
.footer__col ul li { margin-bottom: 10px; }
.footer__col a { font-size: 0.9rem; transition: color 0.2s ease; }
.footer__col a:hover { color: #fff; }

.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 22px 24px;
  font-size: 0.82rem;
}
.footer__bottom-inner a { text-decoration: underline; }

/* ---------- Article / blog post ---------- */
.article-hero {
  background:
    radial-gradient(circle at 15% 20%, rgba(47, 127, 224, 0.10), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(47, 158, 92, 0.10), transparent 45%),
    var(--color-bg-alt);
  padding: 60px 0 50px;
}
.article-hero .container { max-width: 780px; }
.article-hero a.back {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--color-blue-dark);
  font-weight: 600;
  font-size: 0.9rem;
}
.article-hero__cat {
  display: inline-block;
  color: var(--color-blue-dark);
  background: rgba(47, 127, 224, 0.1);
  padding: 6px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 18px;
}
.article-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 16px;
}
.article-hero__lead {
  color: var(--color-text-light);
  font-size: 1.1rem;
}

.article {
  max-width: 780px;
  margin: 0 auto;
  padding: 60px 24px 90px;
}
.article h2 {
  font-size: 1.4rem;
  margin: 40px 0 16px;
}
.article h3 {
  font-size: 1.15rem;
  margin: 28px 0 12px;
}
.article p {
  color: var(--color-text);
  margin-bottom: 18px;
  font-size: 1.02rem;
}
.article ul, .article ol {
  margin: 0 0 18px 22px;
  color: var(--color-text);
}
.article ul { list-style: disc; }
.article ol { list-style: decimal; }
.article li { margin-bottom: 8px; }
.article strong { color: var(--color-black); }
.article blockquote {
  border-left: 4px solid var(--color-blue);
  background: var(--color-bg-alt);
  padding: 18px 24px;
  border-radius: 0 10px 10px 0;
  margin: 28px 0;
  font-style: italic;
  color: var(--color-text);
}

.article__cta {
  margin-top: 50px;
  padding: 34px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--color-black), #262b35);
  text-align: center;
}
.article__cta h3 { color: #fff; margin-bottom: 8px; }
.article__cta p { color: #b7bec9; margin-bottom: 22px; }

.article__related {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 24px 90px;
}
.article__related h3 { margin-bottom: 20px; }
.article__related-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.article__related-list a {
  display: block;
  padding: 18px 20px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--color-black);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.article__related-list a:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

@media (max-width: 640px) {
  .article__related-list { grid-template-columns: 1fr; }
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .compare,
  .services,
  .why-grid,
  .footer__inner { grid-template-columns: 1fr; }

  .audience { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }

  .nav { display: none; }
  .header__cta { display: none; }
  .nav__toggle { display: flex; }

  .nav.is-open {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
  }
  .nav.is-open .nav__list {
    flex-direction: column;
    padding: 20px 24px;
    gap: 4px;
  }
  .nav.is-open .nav__link { display: block; padding: 12px 0; }
}

@media (max-width: 640px) {
  .section { padding: 60px 0; }
  .hero { padding: 70px 0 60px; }
  .form__row { grid-template-columns: 1fr; }
  .audience { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .form { padding: 28px 22px; }
  .footer__bottom-inner { flex-direction: column; text-align: center; }
}