/* Atlas — site de apresentação
   Tom editorial limpo. Foco em conversão.
   Mobile-first. Tipografia: Inter (Google Fonts).
*/

:root {
  --bg: #0e0e0e;
  --bg-card: #161616;
  --bg-section: #131313;
  --fg: #e8e8e8;
  --fg-muted: #999999;
  --fg-dim: #666666;
  --accent: #b8d8b8;
  --accent-hover: #a8c8a8;
  --rule: #2a2a2a;
  --max-width: 760px;
  --space: clamp(1rem, 2vw, 1.5rem);
  --space-lg: clamp(2rem, 5vw, 3.5rem);
  --space-xl: clamp(3.5rem, 8vw, 6rem);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafafa;
    --bg-card: #ffffff;
    --bg-section: #f0f0f0;
    --fg: #1a1a1a;
    --fg-muted: #555555;
    --fg-dim: #888888;
    --accent: #2d5a2d;
    --accent-hover: #1d4a1d;
    --rule: #e5e5e5;
  }
}

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

html {
  font-size: 17px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (min-width: 768px) {
  html { font-size: 18px; }
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.65;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space);
}

/* HERO */

.hero {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--rule);
}

.kicker {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3.25rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: var(--space);
  color: var(--fg);
}

.hero .lede {
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  color: var(--fg-muted);
  line-height: 1.55;
  margin-bottom: var(--space-lg);
  max-width: 600px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-cta-note {
  font-size: 0.85rem;
  color: var(--fg-dim);
  font-style: italic;
}

/* BUTTONS */

.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #0e0e0e;
  padding: 0.85rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.005em;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:active {
  transform: scale(0.98);
}

/* SECTIONS */

section {
  margin-bottom: var(--space-xl);
}

section h2 {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
}

section h3 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin-bottom: 0.5rem;
}

section p {
  margin-bottom: var(--space);
  color: var(--fg);
}

section p + p {
  margin-top: calc(var(--space) * -0.3);
}

section ul, section ol {
  margin: var(--space) 0;
  padding-left: 0;
  list-style: none;
}

/* CHECK LIST (reconhecimento) */

.check-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.75rem;
  color: var(--fg);
  border-bottom: 1px solid var(--rule);
}

.check-list li::before {
  content: '○';
  position: absolute;
  left: 0;
  top: 0.5rem;
  color: var(--accent);
  font-size: 1.1rem;
  line-height: 1.5;
}

.check-list li:last-child {
  border-bottom: none;
}

.reinforce {
  margin-top: var(--space-lg);
  font-style: italic;
  color: var(--fg-muted);
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
}

/* ALT BLOCKS (o que já tentou) */

.alt-blocks {
  display: grid;
  gap: var(--space);
}

@media (min-width: 640px) {
  .alt-blocks {
    grid-template-columns: 1fr 1fr;
  }
}

.alt {
  background: var(--bg-card);
  padding: 1.25rem;
  border-radius: 6px;
  border: 1px solid var(--rule);
}

.alt h3 {
  color: var(--fg);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.alt p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  margin: 0;
  line-height: 1.55;
}

/* ENTREGA LIST */

.entrega-list li {
  position: relative;
  padding: 0.6rem 0 0.6rem 1.5rem;
  color: var(--fg);
}

.entrega-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  top: 0.6rem;
  color: var(--accent);
  font-weight: 700;
}

/* STEPS */

.steps {
  display: grid;
  gap: 1rem;
}

.steps li {
  background: var(--bg-card);
  padding: 1.25rem;
  border-radius: 6px;
  border: 1px solid var(--rule);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
}

.step-num {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  padding-top: 0.1rem;
}

.steps strong {
  color: var(--fg);
  font-size: 1.05rem;
  font-weight: 600;
  margin-right: 0.6rem;
}

.step-time {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.75rem;
  color: var(--fg-dim);
  letter-spacing: 0.03em;
}

.steps p {
  margin: 0.5rem 0 0;
  color: var(--fg-muted);
  font-size: 0.95rem;
}

/* SECURITY SECTION */

.security {
  background: var(--bg-section);
  padding: var(--space-lg) var(--space);
  border-radius: 8px;
  border: 1px solid var(--rule);
  margin: var(--space-xl) calc(var(--space) * -1);
}

@media (min-width: 768px) {
  .security {
    margin: var(--space-xl) 0;
  }
}

.security-list li {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--rule);
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.security-list li:last-child {
  border-bottom: none;
}

.security-list strong {
  display: block;
  color: var(--fg);
  margin-bottom: 0.25rem;
  font-weight: 600;
}

/* NOT FOR LIST */

.not-for-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.75rem;
  color: var(--fg-muted);
}

.not-for-list li::before {
  content: '×';
  position: absolute;
  left: 0;
  top: 0.4rem;
  color: var(--fg-dim);
  font-size: 1.2rem;
  font-weight: 700;
}

/* CTA */

.cta {
  background: var(--bg-card);
  padding: var(--space-lg);
  border-radius: 8px;
  border: 1px solid var(--rule);
  margin-top: var(--space-xl);
}

.cta h2 {
  color: var(--accent);
}

.cta-pitch {
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: var(--space);
}

.cta .links {
  margin-top: var(--space-lg);
}

.cta .links.secondary {
  margin-top: var(--space);
  font-size: 0.95rem;
  color: var(--fg-muted);
}

.cta .links a {
  color: var(--accent);
  text-decoration: none;
}

.cta .links.secondary a {
  border-bottom: 1px solid var(--accent);
}

.cta .links.secondary a:hover {
  opacity: 0.7;
}

.note {
  margin-top: var(--space);
  font-size: 0.9rem;
  color: var(--fg-dim);
  font-style: italic;
}

.sep {
  color: var(--fg-dim);
  margin: 0 0.5rem;
}

/* FOOTER */

footer {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--rule);
  color: var(--fg-dim);
  font-size: 0.9rem;
}

footer p {
  margin-bottom: var(--space);
}

footer strong {
  color: var(--fg);
}

footer a {
  color: var(--fg-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

footer a:hover {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

footer small {
  font-size: 0.85rem;
  color: var(--fg-dim);
  line-height: 1.6;
  display: block;
}

footer em {
  color: var(--fg-muted);
  font-style: normal;
  font-weight: 500;
}

.footer-links {
  font-size: 0.95rem;
}

/* FLOW DIAGRAM */

.flow .diagram {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.72rem;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.25rem 1rem;
  overflow-x: auto;
  white-space: pre;
  margin: var(--space) 0 var(--space-lg);
  letter-spacing: 0;
}

@media (min-width: 640px) {
  .flow .diagram { font-size: 0.82rem; padding: 1.5rem; }
}

.flow .diagram .dim {
  color: var(--fg-dim);
}

.flow .diagram .accent {
  color: var(--accent);
  font-weight: 600;
}

.flow-intro {
  color: var(--fg-muted);
  font-size: 1rem;
  margin-bottom: var(--space);
}

.flow-note {
  font-size: 0.9rem;
  color: var(--fg-dim);
  font-style: italic;
  border-left: 2px solid var(--rule);
  padding-left: 1rem;
}

/* STACK SECTION */

.stack-list {
  display: grid;
  gap: 0.5rem;
  margin: var(--space) 0 var(--space-lg);
  padding-left: 0;
  list-style: none;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 0.9rem;
}

.stack-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--rule);
  color: var(--fg);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: baseline;
}

.stack-list li:last-child {
  border-bottom: none;
}

.stack-tag {
  font-size: 0.75rem;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

.stack-note {
  font-size: 0.9rem;
  color: var(--fg-muted);
  font-style: italic;
}

/* ACCESSIBILITY */

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}