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

:root {
  --navy: #0E1F58;
  --navy2: #0a1840;
  --navy3: #13286e;
  --navy4: #1a337a;
  --orange: #FF8932;
  --orange2: #ff9f57;
  --orange-dark: #e5761c;
  --white: #ffffff;
  --text-muted: rgba(255,255,255,0.6);
  --border: rgba(255,255,255,0.12);
  --border-hover: rgba(255,137,50,0.5);
  --card-bg: #0c1a4e;
  --tag-ebook-bg: rgba(255,137,50,0.15);
  --tag-ebook-text: #FF8932;
  --tag-aula-bg: rgba(255,255,255,0.1);
  --tag-aula-text: #fff;
  --tag-pack-bg: rgba(255,137,50,0.3);
  --tag-pack-text: #ffb47a;
}

html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--white);
  font-family: 'Roboto', sans-serif;
  font-weight: 400;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── TOPBAR ─── */
.topbar {
  position: static;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 68px;
  background: var(--navy2);
  border-bottom: 1px solid var(--border);
}

.topbar-logo img {
  height: 38px;
  width: auto;
  display: block;
}

.lang-toggle {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: 'Roboto', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 7px 18px;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-btn.active {
  background: var(--orange);
  color: var(--white);
}

.lang-btn:hover:not(.active) {
  color: var(--white);
  background: rgba(255,255,255,0.07);
}

/* ─── HERO ─── */
.hero {
  position: relative;
  padding: 64px 40px 64px;
  text-align: center;
  overflow: hidden;
  background: linear-gradient(180deg, var(--navy2) 0%, var(--navy) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -60px; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 400px;
  background: radial-gradient(ellipse, rgba(255,137,50,0.13) 0%, transparent 65%);
  pointer-events: none;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,137,50,0.12);
  border: 1px solid rgba(255,137,50,0.35);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.5s 0.1s forwards;
}

.hero-eyebrow span.dot {
  width: 6px; height: 6px;
  background: var(--orange);
  border-radius: 50%;
  display: inline-block;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 6px;
  opacity: 0;
  animation: fadeUp 0.5s 0.2s forwards;
}

.hero h1 .accent {
  color: var(--orange);
}

.hero-sub {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-top: 14px;
  opacity: 0;
  animation: fadeUp 0.5s 0.3s forwards;
}

/* ─── FILTERS ─── */
.filters-wrap {
  position: relative;
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0 40px 48px;
  opacity: 0;
  animation: fadeUp 0.5s 0.4s forwards;
}

.filter-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: 'Roboto', sans-serif;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 22px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.18s;
  letter-spacing: 0.02em;
}

.filter-btn:hover {
  border-color: rgba(255,137,50,0.4);
  color: var(--white);
  background: rgba(255,137,50,0.08);
}

.filter-btn.active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--white);
  font-weight: 700;
}

/* ─── GRID ─── */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: 20px;
  padding: 0 40px 80px;
  max-width: 1280px;
  margin: 0 auto;
}

/* ─── CARD ─── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
  display: flex;
  flex-direction: column;
  opacity: 0;
  animation: fadeUp 0.45s forwards;
}

.card:hover {
  border-color: var(--orange);
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(255,137,50,0.18);
}

.card-visual {
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.card-visual img{
  max-width: 100%;
}

.card-visual, .modal-visual {
    background: var(--navy2); /* Fundo padrão elegante */
}


.card:hover .big-icon { transform: scale(1.1) rotate(-4deg); }

.card-body {
  padding: 20px 20px 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
}

.tag-ebook { background: var(--tag-ebook-bg); color: var(--tag-ebook-text); border: 1px solid rgba(255,137,50,0.3); }
.tag-aula  { background: var(--tag-aula-bg);  color: var(--tag-aula-text);  border: 1px solid var(--border); }
.tag-pack  { background: var(--tag-pack-bg);  color: var(--tag-pack-text);  border: 1px solid rgba(255,137,50,0.45); }

.card-level {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.25;
}

.card-desc {
  font-size: 13px;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.card-price {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--orange);
}

.card-price small {
  font-family: 'Roboto', sans-serif;
  font-size: 10px;
  font-weight: 400;
  color: var(--text-muted);
  display: block;
  line-height: 1;
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.card-cta {
  background: transparent;
  border: 1px solid var(--orange);
  color: var(--orange);
  font-family: 'Roboto', sans-serif;
  font-size: 12px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.18s;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.card-cta:hover {
  background: var(--orange);
  color: var(--white);
}

/* ─── MODAL OVERLAY ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(8,14,40,0.9);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--navy2);
  border: 1px solid rgba(255,137,50,0.35);
  border-radius: 16px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(24px) scale(0.97);
  transition: transform 0.32s cubic-bezier(0.34,1.56,0.64,1);
}

.modal-overlay.open .modal {
  transform: translateY(0) scale(1);
}

.modal-visual {
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px 14px 0 0;
  overflow: hidden;
  position: relative;
}

.modal-visual img {
  max-height: 360px;
  position: relative;
  z-index: 1;
}

/* Orange stripe top of modal */
.modal-visual::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--orange);
}

.modal-body {
  padding: 28px 32px 32px;
}

.modal-top {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.modal h2 {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.15;
}

.modal-description {
  font-size: 14px;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 22px;
}

.modal-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 24px;
}

.detail-item {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}

.detail-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.detail-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--white);
}

.modal-includes {
  margin-bottom: 26px;
}

.modal-includes h4 {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}

.include-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.include-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 400;
  color: rgba(255,255,255,0.85);
}

.include-list li::before {
  content: '▸';
  color: var(--orange);
  font-size: 11px;
  margin-top: 3px;
  flex-shrink: 0;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.modal-price {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--orange);
}

.modal-price small {
  font-family: 'Roboto', sans-serif;
  font-size: 11px;
  font-weight: 400;
  color: var(--text-muted);
  display: block;
  margin-bottom: 3px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.btn-buy {
  background: var(--orange);
  color: var(--white);
  border: none;
  font-family: 'Roboto', sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 8px;
  cursor: pointer;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all 0.18s;
  flex: 1;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

.btn-buy:hover {
  background: var(--orange2);
  transform: scale(1.02);
}

.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 34px; height: 34px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s;
  z-index: 10;
}

.modal-close:hover { color: var(--white); border-color: var(--orange); }

/* ─── FOOTER ─── */
.site-footer {
  text-align: center;
  padding: 32px 40px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 300;
  background: var(--navy2);
}

.site-footer a { color: var(--orange); text-decoration: none; }

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--navy); }
::-webkit-scrollbar-thumb { background: var(--navy4); border-radius: 3px; }

/* ─── ANIMATIONS ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── RESPONSIVE ─── */
@media (max-width: 600px) {
  .topbar { padding: 0 16px; }
  .hero { padding: 100px 20px 56px; }
  .catalog-grid { padding: 0 16px 60px; }
  .filters-wrap { padding: 0 16px 36px; }
  .modal-body { padding: 22px 20px 26px; }
  .modal-details { grid-template-columns: 1fr; }
  .modal-footer { flex-direction: column; }
  .btn-buy { width: 100%; }
  .card-visual {
   height: 300px;
   }

}