@import url("https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap");

:root {
  /* cor */
  --bg-void: #0b0a0f;
  --bg-surface: #16131d;
  --bg-raised: #1e1926;
  --line: rgba(201, 174, 234, 0.12);
  --accent: #9c86c4;
  --accent-bright: #c9aeea;
  --accent-deep: #5b4a82;
  --text-hi: #f3effa;
  --text-mid: #b9afc9;
  --text-low: #756c87;
  --ok: #7fd9a8;
  --warn: #e8b96a;
  --err: #e08a8a;

  /* tipografia */
  --f-display: "Sora", system-ui, sans-serif;
  --f-body: "Inter", system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, monospace;

  /* layout */
  --max-w: 1180px;
  --radius: 14px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-void);
  color: var(--text-hi);
  font-family: var(--f-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1em;
  color: var(--text-mid);
}

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

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- textura de "linhas de camada" (motivo assinatura do site) --- */
.layer-lines {
  position: relative;
  overflow: hidden;
}
.layer-lines::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.35) 0px,
    rgba(0, 0, 0, 0.35) 1px,
    transparent 1px,
    transparent 7px
  );
  opacity: 0.5;
}

/* --- header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 10, 15, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}
.brand img {
  height: 34px;
  width: auto;
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  color: var(--text-mid);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.nav-links a:hover {
  color: var(--text-hi);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.cart-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-hi);
  font-size: 0.9rem;
}
.cart-count {
  background: var(--accent);
  color: var(--bg-void);
  font-family: var(--f-mono);
  font-size: 0.72rem;
  font-weight: 600;
  min-width: 20px;
  height: 20px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text-hi);
  width: 40px;
  height: 40px;
  cursor: pointer;
}

/* --- botões --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-family: var(--f-body);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}
.btn:active {
  transform: scale(0.98);
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-bright), var(--accent-deep));
  color: #0b0a0f;
}
.btn-primary:hover {
  opacity: 0.92;
}
.btn-outline {
  background: transparent;
  border-color: var(--line);
  color: var(--text-hi);
}
.btn-outline:hover {
  border-color: var(--accent);
}
.btn-block {
  width: 100%;
}
.btn-sm {
  padding: 9px 16px;
  font-size: 0.82rem;
}
.btn-danger {
  background: transparent;
  border-color: rgba(224, 138, 138, 0.4);
  color: var(--err);
}

/* --- hero --- */
.hero {
  position: relative;
  padding: 96px 0 80px;
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.eyebrow {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--accent-bright);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
  display: inline-block;
}
.hero h1 {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  max-width: 14ch;
}
.hero p.lead {
  font-size: 1.05rem;
  max-width: 46ch;
  margin-bottom: 28px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 24px;
  background: radial-gradient(circle at 30% 30%, rgba(156, 134, 196, 0.25), transparent 60%),
    var(--bg-surface);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual img {
  width: 62%;
  filter: drop-shadow(0 20px 40px rgba(92, 74, 130, 0.45));
}
.infinity-draw {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.infinity-draw path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw 2.4s ease forwards 0.3s;
  opacity: 0.5;
}
@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .infinity-draw path {
    animation: none;
    stroke-dashoffset: 0;
  }
}

/* --- seções --- */
.section {
  padding: 72px 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0;
}

/* --- grid de produtos --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.product-card {
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.product-card .thumb {
  aspect-ratio: 1 / 1;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--line);
}
.product-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-card .body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.product-card .cat {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--text-low);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.product-card h3 {
  font-size: 1.05rem;
  margin: 0;
}
.product-card .price {
  margin-top: auto;
  font-family: var(--f-mono);
  font-size: 1.15rem;
  color: var(--accent-bright);
  padding-top: 10px;
}
.badge {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(156, 134, 196, 0.15);
  color: var(--accent-bright);
  width: fit-content;
}

/* --- filtros da loja --- */
.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.filter-chip {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--text-mid);
  background: transparent;
  cursor: pointer;
  font-family: var(--f-body);
}
.filter-chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-void);
  font-weight: 600;
}

/* --- página de produto --- */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.product-detail .thumb-large {
  aspect-ratio: 1 / 1;
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.product-detail .thumb-large img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.spec-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}
.spec-row span:first-child {
  color: var(--text-low);
}
.spec-row span:last-child {
  font-family: var(--f-mono);
}
.qty-selector {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
}
.qty-selector button {
  background: none;
  border: none;
  color: var(--text-hi);
  width: 40px;
  height: 40px;
  cursor: pointer;
  font-size: 1.1rem;
}
.qty-selector input {
  width: 40px;
  text-align: center;
  background: none;
  border: none;
  color: var(--text-hi);
  font-family: var(--f-mono);
}

/* --- carrinho --- */
.cart-item {
  display: grid;
  grid-template-columns: 76px 1fr auto auto;
  gap: 16px;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.cart-item img {
  width: 76px;
  height: 76px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
}
.cart-item h4 {
  margin: 0 0 4px;
  font-size: 0.95rem;
}
.cart-summary {
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  position: sticky;
  top: 96px;
}
.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.92rem;
  color: var(--text-mid);
}
.summary-row.total {
  color: var(--text-hi);
  font-weight: 700;
  font-size: 1.1rem;
  border-top: 1px solid var(--line);
  margin-top: 8px;
  padding-top: 16px;
}

/* --- formulários --- */
.field {
  margin-bottom: 18px;
}
.field label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-mid);
  margin-bottom: 6px;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text-hi);
  font-family: var(--f-body);
  font-size: 0.94rem;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
}
.field textarea {
  resize: vertical;
  min-height: 90px;
}

/* --- footer --- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 32px;
  margin-top: 60px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.footer-note {
  color: var(--text-low);
  font-size: 0.82rem;
}

/* --- painel admin --- */
.admin-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}
.admin-side {
  background: var(--bg-surface);
  border-right: 1px solid var(--line);
  padding: 28px 20px;
}
.admin-side nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 32px;
}
.admin-side nav a {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-mid);
  font-size: 0.9rem;
}
.admin-side nav a.active,
.admin-side nav a:hover {
  background: var(--bg-raised);
  color: var(--text-hi);
}
.admin-main {
  padding: 32px 36px;
}
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.admin-table th {
  text-align: left;
  color: var(--text-low);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
.admin-table td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.admin-table img {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 6px;
  background: var(--bg-raised);
}
.admin-card {
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-box {
  width: 100%;
  max-width: 380px;
  background: var(--bg-surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
}
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-raised);
  border: 1px solid var(--accent);
  color: var(--text-hi);
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  z-index: 200;
  max-width: 320px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}
.toast.erro {
  border-color: var(--err);
}
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-low);
}

/* --- responsivo --- */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    max-width: 320px;
    margin: 0 auto;
  }
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .product-detail {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .admin-shell {
    grid-template-columns: 1fr;
  }
  .admin-side {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 640px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-void);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 20px;
    gap: 14px;
    transform: translateY(-130%);
    transition: transform 0.2s ease;
  }
  .nav-links.open {
    transform: translateY(0);
  }
  .nav-toggle {
    display: block;
  }
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .cart-item {
    grid-template-columns: 60px 1fr;
    grid-template-rows: auto auto;
  }
  .cart-item .qty-selector {
    grid-column: 2;
  }
  .cart-summary {
    position: static;
  }
  .hero {
    padding: 56px 0 48px;
  }
  .section {
    padding: 48px 0;
  }
  .admin-main {
    padding: 20px;
  }
}