/* ==================== Design System ==================== */

:root {
    /* Cores */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-text: #2563eb;

    --color-background: #f8fafc;
    --color-surface: #ffffff;

    --color-text: #172033;
    --color-text-muted: #64748b;

    --color-border: #e2e8f0;

    --color-success: #15803d;
    --color-success-background: #dcfce7;

    --color-warning: #b45309;
    --color-warning-background: #fef3c7;

    --color-error: #b91c1c;
    --color-error-background: #fee2e2;

    --color-neutral: #475569;
    --color-neutral-background: #e2e8f0;

    /* Espaçamentos */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Bordas */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    /* Outros */
    --container-width: 1100px;
}


/* ==================== Dark Mode ==================== */

[data-theme="dark"] {
    --color-background: #0f172a;
    --color-surface: #1e293b;
    --color-primary-text: #60a5fa;

    --color-text: #f8fafc;
    --color-text-muted: #cbd5e1;

    --color-border: #334155;

    --color-success: #86efac;
    --color-success-background: #14532d;

    --color-warning: #fde68a;
    --color-warning-background: #78350f;

    --color-error: #fca5a5;
    --color-error-background: #7f1d1d;

    --color-neutral: #cbd5e1;
    --color-neutral-background: #334155;
}

.theme-button {
    display: flex;
    align-items: center;
    justify-content: center;

    width: 40px;
    height: 40px;

    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);

    background-color: transparent;
    color: var(--color-text);

    font-size: 1.2rem;

    cursor: pointer;
}

/* ==================== Base ==================== */

* {
  box-sizing: border-box;
}

body {
  margin: 0;

  font-family: Arial, Helvetica, sans-serif;

  background-color: var(--color-background);
  color: var(--color-text);
}

button,
a {
  font: inherit;
}

button {
  cursor: pointer;
}

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

h1,
h2,
h3,
p {
  margin-top: 0;
}

.container {
  width: min(100% - 32px, var(--container-width));
  margin: 0 auto;
}

/* ==================== Header ==================== */

.header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.header-content {
  min-height: 72px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  gap: var(--spacing-lg);
}

.logo {
  color: var(--color-primary-text);

  font-size: 1.5rem;
  font-weight: 700;
}

.navigation {
  display: flex;
  align-items: center;

  gap: var(--spacing-lg);
}

.nav-link {
  padding: var(--spacing-sm) 0;

  color: var(--color-text-muted);

  font-size: 0.95rem;
  font-weight: 600;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary-text);
}

/* ==================== Main ==================== */

.main {
  padding: var(--spacing-xxl) 0;
}

/* ==================== Products Header ==================== */

.products-header {
  display: flex;
  flex-direction: column;

  gap: var(--spacing-lg);

  margin-bottom: var(--spacing-xl);
}

.products-header h1 {
  margin-bottom: var(--spacing-sm);

  font-size: clamp(1.5rem, 1.25rem + 1vw, 2rem);
}

.products-header p {
  margin-bottom: 0;

  color: var(--color-text-muted);
}

/* ==================== Buttons ==================== */

.button {
  min-height: 44px;

  padding: var(--spacing-sm) var(--spacing-md);

  border: 0;
  border-radius: var(--radius-md);

  font-weight: 600;
}

.button-primary {
  align-self: flex-start;

  background-color: var(--color-primary);
  color: white;
}

.button-primary:hover {
  background-color: var(--color-primary-hover);
}

/* ==================== Products ==================== */

.products-grid {
  display: grid;
  grid-template-columns: 1fr;

  gap: var(--spacing-md);
}

/* ==================== Product Card ==================== */

.product-card {
  display: flex;
  flex-direction: column;

  gap: var(--spacing-md);

  padding: var(--spacing-md);

  background-color: var(--color-surface);

  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);

  cursor: pointer;

  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.2s ease;
}

.product-card:hover {
  border-color: #cbd5e1;

  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);

  transform: translateY(-2px);
}

/* ==================== Product Image ==================== */

.product-image {
  min-height: 160px;

  display: flex;
  align-items: center;
  justify-content: center;

  overflow: hidden;

  border-radius: var(--radius-md);

  color: var(--color-text-muted);
  font-weight: 600;

  background-color: #f8fafc;
}

.product-image img {
  width: 100%;
  height: 100%;

  object-fit: contain;
}

/* ==================== Product Info ==================== */

.product-info {
  position: relative;

  flex: 1;
}

.product-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;

  gap: var(--spacing-md);
}

.product-top h2 {
  margin-bottom: var(--spacing-xs);

  font-size: 1.05rem;
}

.product-store {
  display: inline-block;

  margin-bottom: var(--spacing-md);

  color: var(--color-text-muted);

  font-size: 0.875rem;
}

.product-store:hover {
  color: var(--color-primary);
}

.product-price {
  margin-bottom: var(--spacing-sm);

  font-size: 1.5rem;
  font-weight: 700;
}

/* ==================== Product Details ==================== */

.product-details {
  display: flex;
  flex-wrap: wrap;
  align-items: center;

  gap: var(--spacing-sm);

  color: var(--color-text-muted);

  font-size: 0.875rem;
}

.status {
  padding: var(--spacing-xs) var(--spacing-sm);

  border-radius: 999px;

  font-size: 0.8rem;
  font-weight: 600;
}

.status-warning {
  background-color: var(--color-warning-background);
  color: var(--color-warning);
}

.status-success {
  background-color: var(--color-success-background);
  color: var(--color-success);
}

.status-error {
  background-color: var(--color-error-background);
  color: var(--color-error);
}

.status-neutral {
  background-color: var(--color-neutral-background);
  color: var(--color-neutral);
}

.last-update {
  margin-top: var(--spacing-md);
  margin-bottom: 0;

  color: var(--color-text-muted);

  font-size: 0.75rem;
  line-height: 1.5;
}

/* ==================== Product Menu ==================== */

.menu-button {
  width: 36px;
  height: 36px;

  flex-shrink: 0;

  border: 0;
  border-radius: var(--radius-sm);

  background-color: transparent;

  color: var(--color-text-muted);

  font-size: 1.25rem;
}

.menu-button:hover {
  background-color: var(--color-background);
}

/* ==================== Modal ==================== */

.modal-overlay {
    position: fixed;
    inset: 0;

    display: none;
    align-items: center;
    justify-content: center;

    padding: var(--spacing-md);

    background-color: rgba(15, 23, 42, 0.45);

    z-index: 1000;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    width: 100%;
    max-width: 560px;

    padding: var(--spacing-lg);

    background-color: var(--color-surface);

    border-radius: var(--radius-lg);
}


/* ==================== Modal Header ==================== */

.modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;

    gap: var(--spacing-md);

    margin-bottom: var(--spacing-lg);
}

.modal-header h2 {
    margin-bottom: var(--spacing-xs);
}

.modal-header p {
    margin-bottom: 0;

    color: var(--color-text-muted);
}

.modal-close {
    width: 40px;
    height: 40px;

    flex-shrink: 0;

    border: 0;
    border-radius: var(--radius-sm);

    background-color: transparent;

    color: var(--color-text-muted);

    font-size: 1.5rem;

    cursor: pointer;
}

.modal-close:hover {
    background-color: var(--color-background);
}


/* ==================== Form ==================== */

.product-form {
    display: flex;
    flex-direction: column;

    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;

    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: 600;
}

.optional {
    color: var(--color-text-muted);

    font-size: 0.875rem;
    font-weight: 400;
}

.form-group input {
    width: 100%;
    min-height: 44px;

    padding: 0 var(--spacing-md);

    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);

    background-color: var(--color-surface);

    color: var(--color-text);

    outline: none;
}

.form-group input:focus {
    border-color: var(--color-primary);
}

.form-help {
    color: var(--color-text-muted);

    line-height: 1.5;
}


/* ==================== Form Actions ==================== */

.form-actions {
    display: flex;
    justify-content: flex-end;

    gap: var(--spacing-sm);
}

.button-secondary {
    background-color: transparent;
    color: var(--color-text);

    border: 1px solid var(--color-border);
}

.button-secondary:hover {
    background-color: var(--color-background);
}

/* ==================== Accessibility ==================== */

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}

/* ==================== Responsive ==================== */

@media (min-width: 768px) {
  .products-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .button-primary {
    align-self: auto;
  }

  .product-card {
    flex-direction: row;
    align-items: stretch;
  }

  .product-image {
    width: 180px;
    min-width: 180px;
    min-height: 140px;
  }

  .last-update {
    position: absolute;

    right: 0;
    bottom: 0;

    text-align: right;
  }
}

@media (min-width: 1024px) {
  .main {
    padding: 64px 0;
  }

  .product-card {
    padding: var(--spacing-lg);
  }
}