:root {
    --bg: #0a0a0a;
    --fg: #f4f4f4;
    --muted: #9a9a9a;
    --line: rgba(255,255,255,0.12);
    --red: #e8231b;
    --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  /* NAV */
  .nav {
    display: flex; align-items: center; justify-content: space-between;
    padding: 24px clamp(24px, 4vw, 64px);
    border-bottom: 1px solid var(--line);
    position: sticky; top: 0; z-index: 20;
    background: rgba(10,10,10,0.82);
    backdrop-filter: blur(10px);
  }
  .logo { display: inline-flex; align-items: center; }
  .logo img { height: 34px; width: auto; display: block; transition: height 0.3s ease; filter: invert(1); }
  .nav.scrolled .logo img { height: 28px; }
  .nav-back { display: inline-flex; align-items: center; gap: 10px; color: #cfcfcf; text-decoration: none; font-size: 13px; letter-spacing: 0.06em; transition: color 0.2s ease; }
  .nav-back:hover { color: #fff; }
  .nav-menu .nav-links { display: flex; gap: clamp(16px,1.9vw,38px); list-style: none; margin: 0; padding: 0; }
  .nav-links a { color: var(--fg); text-decoration: none; font-size: 14px; font-weight: 600; letter-spacing: 0.04em; white-space: nowrap; opacity: 0.9; transition: color 0.18s ease, opacity 0.18s ease; }
  .nav-links a:hover, .nav-links a.active { color: var(--red); opacity: 1; }
  @media (max-width: 940px) { .nav-menu { display: none; } }
  .nav-back svg { width: 18px; height: 18px; }

  /* ARTICLE */
  .art { max-width: 760px; margin: 0 auto; padding: clamp(48px, 6vw, 88px) clamp(24px, 4vw, 32px) 0; }
  .art-meta-top { display: flex; align-items: center; gap: 18px; font-size: 11px; letter-spacing: 0.16em; color: var(--muted); margin-bottom: 26px; }
  .art-tag { color: var(--red); }
  .art-meta-top .dot { width: 3px; height: 3px; border-radius: 50%; background: #555; }
  .art-title { font-size: clamp(32px, 4.4vw, 58px); font-weight: 700; line-height: 1.06; letter-spacing: -0.02em; color: #fff; text-wrap: balance; }
  .art-lede { margin-top: 28px; font-size: clamp(18px, 1.5vw, 22px); line-height: 1.55; color: #b6b6b6; text-wrap: pretty; }

  .art-hero {
    position: relative;
    margin: clamp(40px, 5vw, 64px) 0 clamp(36px, 4vw, 56px);
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: inset 0 0 140px rgba(0,0,0,0.5);
  }
  .art-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, transparent 40%, rgba(255,255,255,0.05) 50%, transparent 60%); }
  .art-hero .ph { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-family: ui-monospace, Menlo, monospace; font-size: 11px; letter-spacing: 0.24em; color: rgba(255,255,255,0.22); }

  .art-body { padding-bottom: clamp(56px, 6vw, 88px); }
  .art-body p { font-size: clamp(17px, 1.25vw, 19px); line-height: 1.85; color: #c6c6c6; margin-bottom: 1.5em; }
  .art-body h2 { font-size: clamp(23px, 2vw, 31px); font-weight: 600; color: #fff; line-height: 1.2; margin: 1.9em 0 0.7em; letter-spacing: -0.01em; }
  .art-body blockquote {
    margin: 1.8em 0; padding: 6px 0 6px 28px;
    border-left: 2px solid var(--red);
    font-size: clamp(20px, 1.7vw, 26px); line-height: 1.4; color: #e6e6e6; font-weight: 500;
  }

  /* AUTOR */
  .art-author { display: flex; align-items: flex-start; gap: 18px; padding: 0 0 28px; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
  .art-author-avatar { width: 66px; height: 66px; border-radius: 50%; object-fit: cover; flex: none; background: rgba(255,255,255,0.08); display: block; }
  .art-author-avatar-ph { width: 66px; height: 66px; border-radius: 50%; flex: none; background: rgba(255,255,255,0.08); }
  .art-author-name { font-size: 16px; font-weight: 700; color: #fff; line-height: 1.2; margin-bottom: 4px; }
  .art-author-role { font-size: 12.5px; color: var(--muted); margin-bottom: 8px; letter-spacing: 0.04em; }
  .art-author-bio { font-size: 14px; line-height: 1.65; color: #b4b4b4; text-wrap: pretty; }

  /* COMPARTILHAR */
  .art-share { max-width: 760px; margin: 0 auto; padding: clamp(40px,4.5vw,60px) clamp(24px,4vw,32px) clamp(52px,5vw,76px); border-top: 1px solid var(--line); }
  .art-share-title { font-size: clamp(22px,2.4vw,30px); font-weight: 700; color: #fff; margin-bottom: 12px; }
  .art-share-sub { font-size: 15px; color: var(--muted); line-height: 1.62; max-width: 46ch; margin-bottom: 32px; text-wrap: pretty; }
  .art-share-btns { display: flex; gap: 28px; flex-wrap: wrap; align-items: flex-start; }
  .share-btn { display: flex; flex-direction: column; align-items: center; gap: 10px; cursor: pointer; background: none; border: none; color: #b8b8b8; font-family: inherit; font-size: 11.5px; letter-spacing: 0.08em; text-decoration: none; transition: color 0.2s; }
  .share-btn:hover { color: #fff; }
  .share-icon { width: 58px; height: 58px; border-radius: 50%; background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.14); display: flex; align-items: center; justify-content: center; transition: background 0.2s, border-color 0.2s; }
  .share-btn:hover .share-icon { background: rgba(255,255,255,0.13); border-color: rgba(255,255,255,0.28); }
  .share-icon svg { width: 22px; height: 22px; }

  /* FOOTER — continue lendo */
  .more { border-top: 1px solid var(--line); padding: clamp(48px, 5vw, 80px) clamp(24px, 4vw, 64px); }
  .more-inner { max-width: 1160px; margin: 0 auto; }
  .more-title { font-size: 13px; letter-spacing: 0.16em; color: var(--muted); margin-bottom: 30px; }
  .more-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2vw, 30px); }
  .mcard { text-decoration: none; color: inherit; display: flex; flex-direction: column; }
  .mcard-img { aspect-ratio: 16 / 10; border-radius: 4px; position: relative; overflow: hidden; box-shadow: inset 0 0 80px rgba(0,0,0,0.5); }
  .mcard-tag { margin-top: 16px; font-size: 10px; letter-spacing: 0.18em; color: rgba(255,255,255,0.55); }
  .mcard-ttl { margin-top: 10px; font-size: 16px; font-weight: 500; line-height: 1.32; color: #f0f0f0; transition: color 0.2s ease; }
  .mcard-date { margin-top: 14px; font-size: 11px; letter-spacing: 0.1em; color: #8f8f8f; }
  .mcard:hover .mcard-ttl { color: #fff; }

  .art-cta { border-top: 1px solid var(--line); padding: clamp(44px, 5vw, 72px) clamp(24px, 4vw, 64px); text-align: center; }
  .art-cta h3 { font-size: clamp(24px, 2.4vw, 38px); font-weight: 600; letter-spacing: -0.015em; color: #fff; margin-bottom: 26px; text-wrap: balance; }
  .cta-hero { display: inline-flex; align-items: stretch; text-decoration: none; color: #fff; position: relative; overflow: hidden; border: 1px solid var(--red); isolation: isolate; }
  .cta-hero::before { content: ""; position: absolute; inset: 0; background: var(--red); transform: scaleX(0); transform-origin: left; transition: transform 0.45s cubic-bezier(.22,.61,.36,1); z-index: 1; }
  .cta-hero:hover::before { transform: scaleX(1); }
  .cta-hero-label { position: relative; z-index: 2; padding: 19px 28px; font-size: 13px; font-weight: 700; letter-spacing: 0.12em; }
  .cta-hero-arrow { position: relative; z-index: 2; width: 54px; display: flex; align-items: center; justify-content: center; background: var(--red); border-left: 1px solid rgba(255,255,255,0.18); }
  .cta-hero-arrow svg { width: 20px; height: 20px; transition: transform 0.35s cubic-bezier(.22,.61,.36,1); }
  .cta-hero:hover .cta-hero-arrow svg { transform: translateX(4px); }

  @media (max-width: 720px) {
    .more-grid { grid-template-columns: 1fr; gap: 26px; }
  }

  /* ================= NEWSLETTER ================= */
  .news { background: #111111; color: #fff; padding: clamp(44px,4.5vw,76px) clamp(24px,4vw,48px); border-top: 1px solid var(--line); }
  .news-inner { max-width: 1320px; margin: 0 auto; display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,0.9fr); gap: clamp(28px,4vw,64px); align-items: center; }
  .news-kicker { font-size: 12px; letter-spacing: 0.18em; color: var(--red); font-weight: 600; margin-bottom: 16px; }
  .news-title { font-size: clamp(24px,2.4vw,38px); font-weight: 600; line-height: 1.12; letter-spacing: -0.015em; color: #fff; text-wrap: balance; }
  .news-text { margin-top: 16px; font-size: 15px; line-height: 1.6; color: #9a9a9a; max-width: 52ch; text-wrap: pretty; }
  .news-form { display: flex; flex-direction: column; gap: 20px; }
  .news-field input {
    background: none; border: none; border-bottom: 1px solid rgba(255,255,255,0.22);
    color: #fff; font-family: inherit; font-size: 15px; padding: 14px 0; outline: none; width: 100%;
  }
  .news-field input::placeholder { color: rgba(255,255,255,0.5); letter-spacing: 0.12em; font-size: 12px; text-transform: uppercase; }
  .news-field input:focus { border-bottom-color: var(--red); }
  .news-btn { display: inline-flex; align-items: center; gap: 16px; background: none; border: none; padding: 0; cursor: pointer; color: #fff; align-self: flex-start; }
  .news-btn .circle-btn { width: 54px; height: 54px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.28); display: flex; align-items: center; justify-content: center; flex: none; transition: border-color 0.25s ease, background 0.25s ease; }
  .news-btn .circle-btn svg { width: 20px; height: 20px; color: var(--red); transition: color 0.25s ease; }
  .news-btn .lbl { font-size: 13px; letter-spacing: 0.1em; font-weight: 600; border-bottom: 2px solid var(--red); padding-bottom: 6px; }
  .news-btn:hover .circle-btn { border-color: #3461d6; background: #3461d6; }
  .news-btn:hover .circle-btn svg { color: #fff; }
  .news-btn:disabled { opacity: 0.55; cursor: default; }
  .news-msg { font-size: 13px; color: #9a9a9a; min-height: 18px; letter-spacing: 0.04em; }
  @media (max-width: 860px) { .news-inner { grid-template-columns: 1fr; } }
  @media (max-width: 600px) { .news-text { font-size: 17px; } }