/* ============ BuildSpace — buildspace.com.br ============
   Brand Guide v1: paper + ink + um único laranja. Sem gradientes,
   sem cinzas novos; tons de apoio = ink com opacidade. */

:root {
  --paper: #faf9f7;
  --card: #ffffff;
  --ink: #12100d;
  --ink-62: rgba(18, 16, 13, 0.62);
  --ink-42: rgba(18, 16, 13, 0.42);
  --ink-12: rgba(18, 16, 13, 0.12);
  --ink-22: rgba(18, 16, 13, 0.22);
  --orange: #e8551a;
  --accent-soft: rgba(232, 85, 26, 0.09);
  --paper-dim: rgba(250, 249, 247, 0.62);
  --paper-12: rgba(250, 249, 247, 0.12);
  --paper-22: rgba(250, 249, 247, 0.22);
  --font-head: "Space Grotesk", sans-serif;
  --font-body: "Space Grotesk", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --radius: 16px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

b, strong { font-weight: 600; }

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

.container {
  width: min(1140px, 92%);
  margin-inline: auto;
}

.narrow { width: min(740px, 92%); }

/* ---------- Logo ---------- */

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-mark { width: 30px; height: 30px; flex-shrink: 0; }

.logo-text {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  color: var(--paper);
}

/* Ponto do "i" do wordmark em laranja: cobre o tittle do glifo */
.logo-i { position: relative; }

.logo-i::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0.255em;
  width: 0.14em;
  height: 0.14em;
  border-radius: 50%;
  background: var(--orange);
}

/* ---------- Navbar (sobre o hero ink) ---------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(18, 16, 13, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--paper-12);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.nav-links > a:not(.btn) {
  color: var(--paper-dim);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 400;
  transition: color 0.2s;
}

.nav-links > a:not(.btn):hover { color: var(--paper); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--paper);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.btn-primary {
  background: var(--orange);
  color: var(--paper);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(232, 85, 26, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink-22);
}

.btn-ghost:hover {
  border-color: var(--orange);
  background: var(--accent-soft);
}

/* Ghost dentro de seções ink (hero) */
.hero .btn-ghost {
  color: var(--paper);
  border-color: var(--paper-22);
}

.hero .btn-ghost:hover {
  border-color: var(--orange);
  background: rgba(232, 85, 26, 0.14);
}

.btn-sm { padding: 9px 18px; font-size: 0.88rem; border-radius: 10px; }
.btn-full { width: 100%; padding: 16px; font-size: 1rem; }

/* ---------- Typography ---------- */

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.12;
  text-wrap: balance;
}

h1 { font-size: clamp(2.5rem, 5.4vw, 4.1rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); letter-spacing: -0.025em; }
h3 { font-size: 1.12rem; letter-spacing: -0.02em; }

/* Acento da marca: laranja sólido (sem gradientes) */
.grad { color: var(--orange); }

.dim { color: var(--ink-42); }

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--paper-dim);
  max-width: 540px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 16px;
}

.section { padding: 110px 0; position: relative; }

.section-head {
  max-width: 680px;
  margin-bottom: 56px;
}

/* ---------- Badge ---------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--paper-22);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--paper-dim);
  margin-bottom: 28px;
}

.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--orange);
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}

/* ---------- Hero (seção ink) ---------- */

.hero {
  background: var(--ink);
  color: var(--paper);
  padding: 170px 0 90px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(250, 249, 247, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250, 249, 247, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
  position: relative;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.hero-copy .lead { margin-top: 22px; }

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-mark {
  position: relative;
  width: min(280px, 62%);
  margin-block: 40px;
  animation: mark-float 6s ease-in-out infinite;
}

@keyframes mark-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

.float-card {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid var(--paper-22);
  background: rgba(18, 16, 13, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  animation: card-float 5s ease-in-out infinite;
}

.fc-icon { color: var(--orange); font-size: 0.8rem; }
.fc-live { color: var(--orange); animation: pulse 1.6s ease-in-out infinite; }

.fc-1 { top: 8%;  left: 2%;  animation-delay: 0s; }
.fc-2 { top: 3%;  right: 8%; animation-delay: 0.7s; }
.fc-3 { top: 38%; left: -4%; animation-delay: 1.4s; }
.fc-4 { top: 44%; right: -2%; animation-delay: 2.1s; }
.fc-5 { bottom: 14%; left: 4%; animation-delay: 2.8s; }
.fc-6 { bottom: 7%; right: 6%; animation-delay: 3.5s; }

@keyframes card-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

/* ---------- Problema ---------- */

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

.section-problem h2 { margin-bottom: 24px; }

.section-problem p {
  color: var(--ink-62);
  font-size: 1.08rem;
  max-width: 640px;
  margin-inline: auto;
}

.statement {
  margin-top: 40px !important;
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 2.6vw, 1.9rem) !important;
  font-weight: 600;
  color: var(--ink) !important;
  letter-spacing: -0.02em;
}

.statement em { font-style: normal; font-weight: 300; color: var(--ink-62); }

/* ---------- Grids & Cards ---------- */

.hero-inner > *,
.vision-inner > *,
.community-inner > *,
.grid > * { min-width: 0; }

.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  padding: 30px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--ink-12);
  background: var(--card);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  border-color: var(--ink-22);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(18, 16, 13, 0.07);
}

.card-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  margin-bottom: 20px;
}

.card-icon svg {
  width: 22px; height: 22px;
  fill: var(--orange);
  stroke: var(--orange);
  stroke-width: 0;
}

.card h3 { margin-bottom: 10px; }

.card p { color: var(--ink-62); font-size: 0.93rem; }

/* ---------- Chips (Para quem é) ---------- */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.chip {
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid var(--ink-12);
  background: var(--card);
  font-size: 0.93rem;
  font-weight: 400;
  color: var(--ink);
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
  cursor: default;
}

.chip:hover {
  border-color: var(--orange);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

/* ---------- Visão ---------- */

.vision-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.vision-copy h2 { margin-bottom: 24px; }

.vision-copy p { color: var(--ink-62); margin-bottom: 18px; max-width: 520px; }

.vision-copy blockquote {
  margin-top: 32px;
  padding: 24px 28px;
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--accent-soft);
  font-family: var(--font-head);
  font-size: 1.15rem;
  line-height: 1.5;
}

.vision-visual { position: relative; }

.vision-lockup {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 64px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--ink-12);
  background: var(--card);
}

.vision-mark { width: min(150px, 42%); }

.vision-wordmark {
  font-size: 1.6rem;
  color: var(--ink);
}

/* ---------- Conteúdos (topics) ---------- */

.topics { gap: 14px; }

.topic {
  padding: 22px 20px;
  border-radius: 14px;
  border: 1px solid var(--ink-12);
  background: var(--card);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.4;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.25s, transform 0.25s;
}

.topic:hover {
  border-color: var(--orange);
  transform: translateY(-3px);
}

.topic-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--orange);
}

/* ---------- Comunidade ---------- */

.community-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}

.community-visual { position: relative; }

.community-mark {
  position: relative;
  display: block;
  width: min(240px, 64%);
  margin-inline: auto;
  animation: mark-float 7s ease-in-out infinite;
}

.community-copy h2 { margin-bottom: 24px; }
.community-copy p { color: var(--ink-62); margin-bottom: 16px; max-width: 520px; }

/* ---------- Captura ---------- */

.section-capture { padding-bottom: 130px; }

.capture-card {
  position: relative;
  padding: clamp(36px, 6vw, 64px);
  border-radius: 24px;
  border: 1px solid var(--ink-12);
  background: var(--card);
  text-align: center;
  overflow: hidden;
}

.capture-card h2 { margin-bottom: 16px; }

.capture-card > p {
  color: var(--ink-62);
  max-width: 480px;
  margin: 0 auto 36px;
}

form { text-align: left; max-width: 420px; margin-inline: auto; }

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-62);
  margin-bottom: 8px;
}

.optional { color: var(--ink-42); text-transform: none; letter-spacing: 0; }

.field input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--ink-22);
  background: var(--card);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field input::placeholder { color: var(--ink-42); }

.field input:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-note {
  margin-top: 14px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--ink-42);
}

.form-error {
  margin-top: 14px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--orange);
}

.form-success { text-align: center; padding: 24px 0; }

.success-icon {
  width: 56px; height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--paper);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-success h3 { font-size: 1.4rem; margin-bottom: 10px; }

.form-success p { color: var(--ink-62); }

/* ---------- Footer (seção ink) ---------- */

.footer {
  background: var(--ink);
  color: var(--paper);
  padding: 56px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.footer-tagline { color: var(--paper-dim); font-size: 0.95rem; }

.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--paper-dim);
}

.footer-meta a {
  color: var(--paper);
  text-decoration: none;
}

.footer-meta a:hover { text-decoration: underline; }

/* ---------- Reveal animations ---------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible { opacity: 1; transform: translateY(0); }

.d1 { transition-delay: 0.1s; }
.d2 { transition-delay: 0.2s; }
.d3 { transition-delay: 0.3s; }
.d4 { transition-delay: 0.4s; }

/* Stagger nos grids */
.grid .reveal:nth-child(2), .topics .reveal:nth-child(3n+2) { transition-delay: 0.08s; }
.grid .reveal:nth-child(3), .topics .reveal:nth-child(3n+3) { transition-delay: 0.16s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */

@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(3, 1fr); }

  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-copy .lead { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-visual { margin-top: 24px; }

  .vision-inner,
  .community-inner { grid-template-columns: 1fr; gap: 44px; }
  .community-visual { order: 2; }
  .vision-lockup { max-width: 420px; margin-inline: auto; }
}

@media (max-width: 720px) {
  .section { padding: 80px 0; }
  .hero { padding: 130px 0 60px; }

  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .nav-toggle { display: flex; }

  .nav-links {
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px 4%;
    background: rgba(18, 16, 13, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--paper-12);
    display: none;
  }

  .nav-links.open { display: flex; }

  .nav-links > a:not(.btn) { padding: 12px 8px; font-size: 1rem; }
  .nav-links .btn { margin-top: 8px; }

  /* Cards flutuantes viram faixa compacta no mobile */
  .fc-3, .fc-4 { display: none; }
  .float-card { padding: 8px 12px; font-size: 0.76rem; }
  .fc-1 { top: 4%; left: 0; }
  .fc-2 { top: 4%; right: 0; }
  .fc-5 { bottom: 4%; left: 0; }
  .fc-6 { bottom: 4%; right: 0; }

  .vision-copy blockquote { font-size: 1.02rem; }
}

@media (max-width: 460px) {
  .grid-4 { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .chips { gap: 9px; }
  .chip { padding: 10px 16px; font-size: 0.86rem; }
}