:root {
  --fs-300: 0.9375rem;
  --fs-400: 1.0625rem;
  --fs-500: 1.375rem;
  --fs-600: 1.875rem;
  --fs-700: 2rem;

  --ff-body: "Roboto", sans-serif;
  --ff-heading: "Playfair Display", serif;
  --ff-title: "Inter", sans-serif;
  --ff-modern: "Poppins", sans-serif;
  --ff-elegant: "Montserrat", sans-serif;
  --ff-bold: "Oswald", sans-serif;

  --fw-400: 400;
  --fw-600: 600;
  --fw-700: 700;
  --fw-800: 800;
  --fw-900: 900;

  --clr-primary-200: hsla(169, 70%, 95%, 1);
  --clr-primary-300: hsla(169, 100%, 39%, 1);
  --clr-primary-400: hsla(169, 100%, 26%, 1);
  --clr-primary-500: hsla(169, 100%, 16%, 1);

  --clr-neutral-100: hsla(0, 0%, 100%, 1);
  --clr-neutral-300: hsla(0, 0%, 50%, 1);
  --clr-neutral-400: hsla(0, 0%, 40%, 1);
  --clr-neutral-500: hsla(0, 0%, 60%, 1);
  --clr-neutral-900: hsla(0, 0%, 10%, 1);
}

@media (min-width: 35em) {
  :root {
    --fs-300: 1rem;
    --fs-400: 1.125rem;
    --fs-500: 1.5rem;
    --fs-600: 2.25rem;
    --fs-700: 3rem;
  }
}

/* //////////////////////
  RESET - source: https://piccalil.li/blog/a-modern-css-reset
  /////////////////////// */

/* Box sizing rules */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Remove default margin */
body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

/* Remove list styles on ul, ol elements with a list role, which suggests default styling will be removed */
ul:where([role="list"]),
ol:where([role="list"]) {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Set core root defaults */
html:focus-within {
  scroll-behavior: smooth;
}

/* Set core body defaults */
body {
  min-height: 100vh;
  text-rendering: optimizeSpeed;
  line-height: 1.5;
}

/* A elements that don't have a class get default styles */
a:not([class]) {
  text-decoration-skip-ink: auto;
}

/* Make images easier to work with */
img,
picture {
  max-width: 100%;
  display: block;
}

/* Inherit fonts for inputs and buttons */
input,
button,
textarea,
select {
  font: inherit;
}

/* Remove all animations, transitions and smooth scroll for people that prefer not to see them */
@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* //////////////////////
  General styling
  /////////////////////// */

body {
  font-family: var(--ff-body);
  font-size: var(--fs-400);
  color: #ffffff;
  background-color: #393E46;
}

h1,
h2,
h3 {
  font-family: var(--ff-heading);
  font-weight: var(--fw-900);
  line-height: 1.1;
  color: #ffffff;
}

strong {
  font-weight: var(--fw-700);
}

section,
.section {
  padding: min(10vh, 10em) 0;
}

/* //////////////////////
  Utility Classes
  /////////////////////// */

.flow > *:where(:not(:first-child)) {
  margin-top: var(--flow-spacer, 1em);
}

.container {
  margin-inline: auto;
  padding-inline: 1.5em;
  max-width: 72rem;
}

.container--narrow {
  max-width: 65rem;
}

.flex-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap, 1em);
}

.text-center {
  text-align: center;
}

/* Typography */
.article-title,
.section-title {
  color: #ffffff;
  font-family: var(--ff-title); /* Inter - mesma fonte do header */
  font-weight: var(--fw-700);
  letter-spacing: -0.02em;
}

.article-title {
  font-size: var(--fs-700);
}

.section-title {
  font-size: var(--fs-600);
}

/* //////////////////////
  Header
  /////////////////////// */

.page-header {
  padding: 2em 0;
  background: linear-gradient(135deg, #222831 0%, #393E46 100%);
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.page-header__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-header__title {
  font-family: var(--ff-title);
  font-size: var(--fs-500);
  font-weight: var(--fw-700);
  color: #ffffff;
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.nav-list {
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2em;
}

.nav-list a {
  color: #ffffff;
  text-decoration: none;
  font-weight: var(--fw-600);
  position: relative;
  transition: all 0.3s ease;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--clr-primary-300);
  transition: width 0.3s ease;
}

.nav-list a:hover::after,
.nav-list a:focus::after {
  width: 100%;
}

.nav-list a:focus,
.nav-list a:hover {
  color: var(--clr-primary-300);
  transform: translateY(-2px);
}

/* //////////////////////
  Footer
  /////////////////////// */

.site-footer {
  padding: 3em 0 1em 0;
  color: var(--clr-neutral-100);
  background: linear-gradient(135deg, #1a1a1a 0%, #222831 100%);
  margin-top: 4em;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2em;
  margin-bottom: 2em;
}

.footer-info h3 {
  color: var(--clr-primary-300);
  margin-bottom: 0.5em;
  font-size: var(--fs-500);
}

.footer-contact h4,
.footer-social h4 {
  color: var(--clr-primary-300);
  margin-bottom: 1em;
  font-size: var(--fs-400);
}

.footer-contact a {
  color: #ffffff;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-contact a:hover {
  color: var(--clr-primary-300);
  text-decoration: underline;
}

.social-links {
  display: flex;
  gap: 1em;
  flex-wrap: wrap;
}

.social-link {
  color: #ffffff;
  text-decoration: none;
  padding: 0.5em 1em;
  border: 1px solid var(--clr-primary-300);
  border-radius: 0.25em;
  transition: all 0.3s ease;
}

.social-link:hover {
  background-color: var(--clr-primary-300);
  color: #1a1a1a;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 1em;
  text-align: center;
  opacity: 0.7;
}

/* //////////////////////
  Homepage
  /////////////////////// */

.hero {
  background: linear-gradient(135deg, #393E46 0%, #2C3E50 100%);
  padding: 4em 0;
}

.hero > div {
  display: grid;
  grid-auto-flow: row;
  grid-auto-columns: 1fr;
  align-items: center;
  gap: 3em;
}

.hero__image {
  width: 100%;
  border-radius: 0.5em;
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
  object-fit: cover;
}

@media (min-width: 45em) {
  .hero > div {
    grid-auto-flow: column;
  }
}

.featured-articles {
  background: linear-gradient(135deg, #2C3E50 0%, #34495E 100%);
  position: relative;
}

.featured-articles::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-primary-300), transparent);
}

.articles__list {
  --flow-spacer: 3rem;
  margin: 6rem 0;
}

/* //////////////////////
  Individual article page
  /////////////////////// */

.main-article {
  margin-bottom: 3rem;
  padding-top: 2rem; /* Espaçamento extra entre header e título */
}

.main-article__figure {
  text-align: center; /* Centraliza as imagens */
}

.main-article__figure img {
  margin: 0 auto; /* Garantia adicional de centralização */
  display: block;
}

.main-article__figure figcaption {
  margin: 1rem 0;
  font-size: var(--fs-300);
  opacity: .9;
  text-align: center; /* Centraliza também a legenda */
}

/* //////////////////////
  Article snippets
  /////////////////////// */

.snippet {
  display: grid;
  gap: 1em;
  grid-template-areas:
    "image"
    "title"
    "meta"
    "body"
    "button";
  background-color: rgba(255,255,255,0.05);
  padding: 1.5em;
  border-radius: 0.5em;
  transition: all 0.3s ease;
  border: 1px solid rgba(255,255,255,0.1);
}

.snippet:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  background-color: rgba(255,255,255,0.08);
}

.snippet__image {
  grid-area: image;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 0.25em;
}

.snippet__title {
  grid-area: title;
  color: #ffffff;
  font-family: var(--ff-title); /* Inter - mesma fonte dos títulos principais */
  font-weight: var(--fw-700);
  letter-spacing: -0.02em;
  font-size: var(--fs-500);
  margin-bottom: 0.5em;
}

.snippet__title a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

.snippet__title a:hover,
.snippet__title a:focus {
  color: var(--clr-primary-300);
}

.snippet__meta {
  grid-area: meta;
  color: var(--clr-neutral-300);
}

.snippet__meta span {
  color: #ffffff;
}

.snippet .btn {
  grid-area: button;
}

@media (min-width: 45em) {
  .snippet {
    grid-template-areas:
      "title image"
      "meta image"
      "body image"
      "button image";
    grid-column-gap: 4em;
    grid-template-columns: 1fr 40%;
    grid-template-rows: min-content min-content min-content 1fr;
  }
}

/* //////////////////////
  Buttons
  /////////////////////// */

.btn {
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  line-height: 1;
  padding: 0.75em 1.75em;
  border-radius: 0.25em;
  align-self: start;
  justify-self: start;
  transition: all 0.3s ease;
  font-weight: var(--fw-600);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn:focus {
  outline: 0.125em solid var(--clr-primary-400);
  outline-offset: 0.25em;
}

.btn--primary {
  background: linear-gradient(135deg, var(--clr-primary-400), var(--clr-primary-500));
  color: var(--clr-neutral-100);
  border: 2px solid var(--clr-primary-400);
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.btn--primary:hover,
.btn--primary:focus {
  background: linear-gradient(135deg, var(--clr-primary-500), var(--clr-primary-400));
  border-color: var(--clr-primary-500);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.3);
}

.btn--neutral {
  background: linear-gradient(135deg, var(--clr-neutral-100), #f8f9fa);
  color: var(--clr-neutral-900);
  border: 2px solid var(--clr-neutral-900);
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.btn--neutral:hover,
.btn--neutral:focus {
  color: var(--clr-neutral-100);
  background: linear-gradient(135deg, var(--clr-neutral-900), #2c2c2c);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0,0,0,0.3);
}