/* Mind Up — Landing Premium Dark */
:root {
  --bg: #0a0a0f;
  --bg-soft: #12121a;
  --surface: #1a1a25;
  --border: #2a2a38;
  --text: #f5f5f7;
  --text-soft: #a8a8b8;
  --accent: #ff6b35;
  --accent-soft: #ff8c5a;
  --primary: #4f46e5;
  --primary-soft: #6366f1;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --gradient: linear-gradient(135deg, #ff6b35 0%, #4f46e5 100%);
  --gradient-soft: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(79, 70, 229, 0.1) 100%);
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-soft);
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav a {
  color: var(--text-soft);
  font-weight: 500;
  font-size: 15px;
}

.nav a:hover {
  color: var(--text);
}

.nav-cta {
  padding: 10px 20px;
  background: var(--gradient);
  color: white !important;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

/* ===== HERO ===== */
.hero {
  padding: 120px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: var(--gradient);
  opacity: 0.15;
  filter: blur(120px);
  z-index: 0;
}

.hero > .container {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  padding: 6px 16px;
  background: var(--gradient-soft);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 24px;
}

.hero h1 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-soft);
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

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

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 16px;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 107, 53, 0.4);
  color: white;
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-soft);
  border-color: var(--accent);
  color: var(--text);
}

/* ===== SEÇÕES ===== */
.section {
  padding: 80px 0;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-soft);
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.card p {
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.7;
}

/* ===== ARTIGOS / BLOG ===== */
.article-list {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}

.article-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  transition: border-color 0.2s;
}

.article-card:hover {
  border-color: var(--accent);
}

.article-thumb {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-sm);
  background: var(--gradient-soft);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

.article-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.article-meta .tag {
  color: var(--accent);
  font-weight: 600;
}

.article-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}

.article-card h3 a {
  color: var(--text);
}

.article-card h3 a:hover {
  color: var(--accent);
}

.article-card p {
  color: var(--text-soft);
  font-size: 15px;
}

/* ===== ARTIGO INDIVIDUAL ===== */
.article-header {
  padding: 80px 0 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 60px;
}

.article-header h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  max-width: 900px;
}

.article-header .lead {
  font-size: 20px;
  color: var(--text-soft);
  max-width: 720px;
  line-height: 1.6;
}

.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.85;
}

.article-body h2 {
  font-size: 32px;
  font-weight: 700;
  margin: 56px 0 20px;
  letter-spacing: -0.5px;
}

.article-body h3 {
  font-size: 24px;
  font-weight: 700;
  margin: 40px 0 16px;
}

.article-body p {
  margin-bottom: 24px;
  color: var(--text);
}

.article-body ul, .article-body ol {
  margin: 24px 0 24px 24px;
}

.article-body li {
  margin-bottom: 12px;
}

.article-body blockquote {
  border-left: 4px solid var(--accent);
  padding: 16px 24px;
  margin: 32px 0;
  background: var(--gradient-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text);
}

.article-body code {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'SF Mono', Monaco, Consolas, monospace;
  font-size: 14px;
}

.article-body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 24px 0;
}

.article-body pre code {
  background: none;
  border: none;
  padding: 0;
}

.article-body a {
  color: var(--accent);
  border-bottom: 1px solid rgba(255, 107, 53, 0.3);
}

.article-body a:hover {
  border-bottom-color: var(--accent);
}

.faq-section {
  margin: 60px 0;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.faq-section h2 {
  margin-top: 0;
}

.faq-item {
  margin-bottom: 24px;
}

.faq-item:last-child {
  margin-bottom: 0;
}

.faq-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--accent);
}

.faq-item p {
  font-size: 16px;
  margin: 0;
}

.article-cta {
  margin: 60px 0;
  padding: 40px;
  background: var(--gradient-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}

.article-cta h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.article-cta p {
  color: var(--text-soft);
  margin-bottom: 24px;
  font-size: 17px;
}

/* ===== FOOTER ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 80px;
  text-align: center;
  color: var(--text-soft);
  font-size: 14px;
}

.site-footer a {
  color: var(--text-soft);
  margin: 0 8px;
}

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

/* ===== RESPONSIVO ===== */
@media (max-width: 768px) {
  .nav {
    gap: 16px;
  }
  .nav a:not(.nav-cta) {
    display: none;
  }
  .article-card {
    grid-template-columns: 1fr;
  }
  .article-thumb {
    aspect-ratio: 16 / 9;
  }
  .hero {
    padding: 60px 0;
  }
  .section {
    padding: 60px 0;
  }
}