/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #f2f6f2;
  --bg2:       #e8efe8;
  --surface:   #ffffff;
  --border:    #c5d8bc;
  --border2:   #a8c49c;
  --xl-dark:   #1d6f42;
  --xl-mid:    #217346;
  --xl-light:  #2e8b57;
  --xl-pale:   #e8f5e9;
  --xl-row:    #f1f8f1;
  --text:      #18291a;
  --muted:     #4a6741;
  --muted2:    #6b8f63;
  --white:     #ffffff;
  --formula:   #0070c0;
  --shadow:    0 2px 12px rgba(29,111,66,.09);
  --shadow-lg: 0 8px 28px rgba(29,111,66,.14);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

/* spreadsheet grid background */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 36px 28px;
  opacity: .28;
  pointer-events: none; z-index: 0;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--xl-mid); border-radius: 3px; }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: .7rem 3rem;
  background: var(--xl-dark);
  box-shadow: 0 2px 10px rgba(0,0,0,.22);
}

.nav-logo {
  display: flex; align-items: center; gap: .7rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.05rem; font-weight: 700;
  letter-spacing: .04em; color: #fff;
}

.nav-icon {
  width: 26px; height: 26px;
  background: #fff; border-radius: 4px;
  display: grid; place-items: center;
}

.nav-icon svg { width: 16px; height: 16px; }

nav ul { list-style: none; display: flex; gap: 2rem; }

nav a {
  font-size: .78rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  color: rgba(255,255,255,.72); text-decoration: none;
  transition: color .2s;
}

nav a:hover { color: #fff; }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 8rem 3rem 5rem;
  overflow: hidden;
}

.hero-ribbon {
  position: absolute; top: 0; left: 0; right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--xl-dark), #66bb6a, var(--xl-dark));
}

/* decorative large spreadsheet */
.hero-sheet-bg {
  position: absolute; right: -3rem; top: 50%;
  transform: translateY(-50%);
  width: min(50vw, 620px);
  opacity: .055; pointer-events: none;
}

.hero-content { position: relative; max-width: 700px; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: .65rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .82rem; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--xl-mid);
  border: 2px solid var(--xl-mid);
  padding: .32rem 1rem; border-radius: 2px;
  margin-bottom: 1.8rem;
  background: var(--white);
}

.hero-eyebrow::before {
  content: '';
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--xl-mid);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse { 0%,100%{transform:scale(1);opacity:1} 50%{transform:scale(1.5);opacity:.5} }

h1 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(2.6rem, 6vw, 5.2rem);
  font-weight: 800; line-height: 1.0;
  color: var(--text);
}

h1 em { font-style: normal; color: var(--xl-dark); }

h1 .sub-line {
  display: block;
  font-size: .52em; font-weight: 600;
  color: var(--muted2); letter-spacing: .02em; margin-top: .35rem;
}

.hero-sub {
  margin-top: 1.5rem; font-size: 1.02rem;
  color: var(--muted); max-width: 520px; line-height: 1.82;
}

.hero-sub strong { color: var(--xl-dark); font-weight: 700; }

/* formula bar */
.formula-bar {
  display: flex; align-items: center; gap: .7rem;
  margin-top: 2rem;
  background: var(--white);
  border: 1.5px solid var(--border2); border-radius: 3px;
  padding: .48rem .9rem; max-width: 500px;
  box-shadow: var(--shadow);
}

.formula-cell {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .82rem; font-weight: 700;
  color: #fff; background: var(--xl-dark);
  padding: .18rem .48rem; border-radius: 2px;
  white-space: nowrap;
}

.formula-text {
  font-family: 'Courier New', monospace;
  font-size: .8rem; color: var(--formula);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.hero-badges {
  display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1.8rem;
}

.badge {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .78rem; font-weight: 700;
  letter-spacing: .07em; text-transform: uppercase;
  padding: .32rem .85rem; border-radius: 2px;
  border: 1.5px solid var(--border2);
  color: var(--muted); background: var(--white);
}

.badge.green { border-color: var(--xl-mid); color: var(--xl-mid); background: var(--xl-pale); }
.badge.dark  { border-color: var(--xl-dark); color: #fff; background: var(--xl-dark); }

/* ── GENERIC SECTION ── */
section {
  position: relative;
  padding: 6rem 3rem;
  max-width: 1200px; margin: 0 auto;
}

.section-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .76rem; font-weight: 700;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--xl-mid); margin-bottom: .8rem;
  display: flex; align-items: center; gap: .5rem;
}

.section-label::before {
  content: '';
  display: inline-block; width: 18px; height: 2px;
  background: var(--xl-mid);
}

h2 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 800; letter-spacing: -.01em;
  line-height: 1.1; margin-bottom: 3rem; color: var(--text);
}

h2 span { color: var(--xl-dark); }

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border2), transparent);
  margin: 0 3rem;
}

/* ── SOBRE CARDS ── */
.sobre-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px,1fr));
  gap: 1.2rem;
}

.sobre-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-top: 4px solid var(--xl-dark);
  border-radius: 3px; padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}

.sobre-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

.sobre-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .7rem; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--xl-mid); margin-bottom: .4rem;
}

.sobre-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.1rem; font-weight: 700;
  color: var(--text); margin-bottom: .7rem;
}

.sobre-desc { font-size: .88rem; color: var(--muted); line-height: 1.75; }

/* ── TABS ── */
.modules-tabs {
  display: flex; gap: 0;
  margin-bottom: 3rem;
  border-bottom: 2px solid var(--border2);
}

.tab-btn {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .88rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  padding: .8rem 2rem; border: none; background: none;
  color: var(--muted2); cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: all .22s; position: relative; bottom: -2px;
}

.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--xl-dark); border-bottom-color: var(--xl-dark); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── TOPIC CARDS ── */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px,1fr));
  gap: 1.35rem;
}

.topic-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 3px; overflow: hidden;
  box-shadow: var(--shadow);
  transition: border-color .25s, transform .25s, box-shadow .25s;
}

.topic-card:hover { border-color: var(--xl-mid); transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.card-head {
  display: flex; align-items: center; gap: .85rem;
  padding: .95rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--xl-pale);
}

.card-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .72rem; font-weight: 700;
  color: #fff; background: var(--xl-dark);
  padding: .18rem .52rem; border-radius: 2px; white-space: nowrap;
}

.card-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: .98rem; color: var(--text);
}

.card-body { padding: 1.15rem 1.25rem; }

.card-desc {
  font-size: .87rem; color: var(--muted);
  line-height: 1.75; margin-bottom: 1.05rem;
}

.card-desc code {
  font-family: 'Courier New', monospace;
  color: var(--xl-dark); font-size: .85em;
}

/* ── SPREADSHEET TABLE ── */
.sheet-wrap {
  overflow-x: auto;
  border: 1.5px solid var(--border2); border-radius: 3px;
}

.sheet-title-bar {
  display: flex; align-items: center; gap: .55rem;
  padding: .42rem .72rem;
  background: var(--xl-dark);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .7rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: rgba(255,255,255,.82);
}

.sheet-title-bar span {
  background: rgba(255,255,255,.18);
  padding: .08rem .4rem; border-radius: 2px;
}

.sheet-formula-row {
  display: flex; align-items: center; gap: .48rem;
  padding: .28rem .58rem;
  background: #f7faf7; border-bottom: 1px solid var(--border);
  font-family: 'Courier New', monospace;
  font-size: .7rem; color: var(--formula);
}

.sheet-cell-ref {
  font-weight: 700; color: var(--xl-dark);
  min-width: 30px; border-right: 1px solid var(--border);
  padding-right: .48rem;
}

table.xl {
  width: 100%; border-collapse: collapse;
  font-size: .77rem; font-family: 'Nunito', sans-serif;
}

table.xl thead tr { background: var(--xl-dark); color: #fff; }

table.xl thead th {
  padding: .42rem .68rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700; font-size: .73rem;
  letter-spacing: .06em; text-align: left;
  border-right: 1px solid rgba(255,255,255,.14);
  white-space: nowrap;
}

table.xl th.rn,
table.xl td.rn {
  background: var(--xl-row); color: var(--muted2);
  font-weight: 700; font-size: .68rem;
  text-align: center; width: 26px;
  border-right: 1.5px solid var(--border2);
}

table.xl thead th.rn { background: #155235; }

table.xl tbody tr:nth-child(odd)  { background: var(--white); }
table.xl tbody tr:nth-child(even) { background: var(--xl-row); }
table.xl tbody tr:hover { background: #d4ead4; }

table.xl td {
  padding: .35rem .68rem;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  color: var(--text); white-space: nowrap;
}

table.xl td.formula { color: var(--formula); font-family: 'Courier New', monospace; font-size: .73rem; }
table.xl td.num     { text-align: right; }
table.xl td.total   { font-weight: 700; background: #c8e6c9 !important; }
table.xl td.result  { font-weight: 700; color: var(--xl-dark); }
table.xl td.warn    { color: #c62828; font-weight: 700; }
table.xl td.ok      { color: var(--xl-dark); font-weight: 700; }

/* ── DARK SECTION (project) ── */
.section-dark {
  background: var(--xl-dark);
  position: relative; overflow: hidden;
}

.section-dark::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 36px 28px;
}

.section-dark-inner {
  position: relative;
  max-width: 1200px; margin: 0 auto; padding: 6rem 3rem;
}

.section-dark .section-label { color: rgba(255,255,255,.65); }
.section-dark .section-label::before { background: rgba(255,255,255,.45); }
.section-dark h2 { color: #fff; }
.section-dark h2 span { color: #a5d6a7; }

.project-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem; align-items: start;
}

.project-info h3 {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.85rem; font-weight: 800;
  line-height: 1.15; margin-bottom: 1rem; color: #a5d6a7;
}

.project-info p {
  color: rgba(255,255,255,.76);
  font-size: .9rem; line-height: 1.82; margin-bottom: 1rem;
}

.project-info strong { color: #a5d6a7; }

.tag-list { display: flex; flex-wrap: wrap; gap: .48rem; margin-top: 1.4rem; }

.tag {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .7rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  padding: .28rem .72rem;
  border: 1.5px solid rgba(255,255,255,.28); border-radius: 2px;
  color: rgba(255,255,255,.82); background: rgba(255,255,255,.09);
}

/* ── TIMELINE ── */
.timeline { position: relative; padding-left: 2.1rem; }

.timeline::before {
  content: '';
  position: absolute; left: 0; top: 5px; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--xl-dark), var(--xl-light), #66bb6a);
}

.tl-item {
  position: relative; margin-bottom: 2.4rem; padding-left: 1.4rem;
}

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

.tl-item::before {
  content: '';
  position: absolute; left: -2.48rem; top: .42rem;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--xl-dark); border: 3px solid var(--bg);
}

.tl-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .7rem; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--xl-mid); margin-bottom: .22rem;
}

.tl-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.08rem; font-weight: 700;
  margin-bottom: .32rem; color: var(--text);
}

.tl-desc { font-size: .86rem; color: var(--muted); line-height: 1.7; }

/* ── FOOTER ── */
footer {
  background: var(--xl-dark);
  border-top: 3px solid #145c32;
  padding: 2.4rem 3rem;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}

.footer-logo {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: .92rem; font-weight: 700;
  color: rgba(255,255,255,.88); letter-spacing: .04em;
}

.footer-links { display: flex; gap: 1.5rem; }

.footer-links a {
  font-size: .78rem; color: rgba(255,255,255,.62);
  text-decoration: none; font-weight: 700; transition: color .2s;
}

.footer-links a:hover { color: #fff; }

/* ── ANIMATIONS ── */
.fade-up {
  opacity: 0; transform: translateY(22px);
  transition: opacity .55s ease, transform .55s ease;
}

.fade-up.visible { opacity: 1; transform: none; }

.fade-up:nth-child(2) { transition-delay: .08s; }
.fade-up:nth-child(3) { transition-delay: .16s; }
.fade-up:nth-child(4) { transition-delay: .24s; }
.fade-up:nth-child(5) { transition-delay: .32s; }
.fade-up:nth-child(6) { transition-delay: .40s; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) { .project-wrapper { grid-template-columns: 1fr; } }

@media (max-width: 768px) {
  nav { padding: .7rem 1.5rem; }
  nav ul { display: none; }
  section, .section-dark-inner { padding: 4rem 1.5rem; }
  .hero { padding: 6.5rem 1.5rem 3rem; }
  footer { padding: 2rem 1.5rem; }
  .topics-grid { grid-template-columns: 1fr; }
  .divider { margin: 0 1.5rem; }
}
/* Ajuste para colocar imagem ao lado do texto e empurrá-la para a direita */
.hero-container {
  display: flex;
  align-items: center; /* Alinha verticalmente ao centro */
  justify-content: flex-end; /* Empurra todo o grupo para a direita */
  gap: 3rem; /* Espaço fixo entre o texto e a imagem */
  width: 100%;
  z-index: 1;
  max-width: 1200px; /* Alinha o limite da imagem com o restante do site */
  margin: 0 auto; /* Centraliza o container principal na tela */
}

/* NOVA REGRA: Empurra o texto para a esquerda ocupando o espaço vazio */
.hero-content {
  flex: 1; /* Faz o texto crescer para ocupar o espaço */
  margin-right: auto; /* Garante que o espaço 'sobrando' fique à direita do texto */
}

.hero-image img {
  width: 600px !important; /* Aqui você define o tamanho gigante que quiser */
  height: auto;
  max-width: none !important; /* Impede que o navegador limite o tamanho */
  margin-top: -50px;
  filter: drop-shadow(0 20px 50px rgba(29, 111, 66, 0.2));
  animation: floating 3s ease-in-out infinite;
}

@keyframes floating {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Garante que em telas pequenas a imagem vá para baixo e centralize */
@media (max-width: 900px) {
  .hero-container { 
    flex-direction: column; 
    text-align: center; 
    justify-content: center; /* Centraliza em telas pequenas */
  }
  .hero-content { margin-right: 0; } /* Remove a margem lateral no mobile */
  .formula-bar { margin-left: auto; margin-right: auto; }
  .hero-badges { justify-content: center; }
}