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

/* ─── Base ───────────────────────────────────────────────────── */
:root {
  --color-bg:       #f0f4f8;
  --color-surface:  #ffffff;
  --color-border:   #e2e8f0;
  --color-text:     #1a202c;
  --color-muted:    #718096;
  --color-primary:       #05204f;
  --color-primary-hover: #0a3573;
  --color-danger:   #e53e3e;
  --radius:         10px;
  --shadow-card:    0 4px 24px rgba(0, 0, 0, .07);
}

body {
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ─── Auth loading ───────────────────────────────────────────── */
.auth-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Login page ─────────────────────────────────────────────── */
.page-login {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 380px;
  text-align: center;
}

.login-header h1 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: .375rem;
}

.login-header p {
  font-size: .875rem;
  color: var(--color-muted);
  margin-bottom: 1.75rem;
}

.btn-google {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .625rem;
  width: 100%;
  padding: .625rem 1.25rem;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  font-size: .9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, box-shadow .15s;
}

.btn-google:hover:not(:disabled) {
  background: #f7fafc;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
}

.btn-google:disabled { opacity: .55; cursor: not-allowed; }

/* ─── Error message ──────────────────────────────────────────── */
.error-msg {
  margin-top: 1rem;
  font-size: .875rem;
  color: var(--color-danger);
}

/* ─── Header ─────────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: .75rem 2rem;
  gap: 1rem;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.logo-text {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: .625rem;
}

.user-email {
  font-size: .8125rem;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.btn-admin {
  padding: .35rem .8rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 6px;
  font-size: .8125rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: opacity .15s;
}
.btn-admin:hover { background: var(--color-primary-hover); }

.btn-logout {
  padding: .35rem .8rem;
  background: transparent;
  border: 1.5px solid var(--color-border);
  border-radius: 6px;
  font-size: .8125rem;
  cursor: pointer;
  color: var(--color-muted);
  transition: border-color .15s, color .15s;
  white-space: nowrap;
}
.btn-logout:hover { border-color: var(--color-danger); color: var(--color-danger); }

/* ─── Catalog ────────────────────────────────────────────────── */
.catalog-main {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.75rem 2rem;
}

.catalog-controls { margin-bottom: 1rem; }

.search-input {
  width: 100%;
  max-width: 420px;
  padding: .5rem .875rem;
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  font-size: .9375rem;
  background: var(--color-surface);
  color: var(--color-text);
  outline: none;
  transition: border-color .15s;
}

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

/* ─── Category filters ───────────────────────────────────────── */
.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.5rem;
}

.category-chip {
  padding: .375rem .875rem;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  font-size: .875rem;
  cursor: pointer;
  color: var(--color-muted);
  transition: all .15s;
  white-space: nowrap;
}

.category-chip:hover  { border-color: var(--color-primary); color: var(--color-primary); }
.category-chip.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* ─── Agent grid ─────────────────────────────────────────────── */
.agent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.agent-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: box-shadow .2s;
}

.agent-card:hover { box-shadow: 0 8px 32px rgba(0, 0, 0, .10); }

.agent-card-body {
  flex: 1;
  padding: 1.25rem 1.25rem .75rem;
}

.agent-category-badge {
  display: inline-block;
  font-size: .75rem;
  color: var(--color-muted);
  margin-bottom: .5rem;
}

.agent-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: .375rem;
  line-height: 1.3;
}

.agent-description {
  font-size: .875rem;
  color: var(--color-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.agent-description.expanded {
  display: block;
  overflow: visible;
}

.btn-expand {
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: .8125rem;
  cursor: pointer;
  padding: 0;
  margin-top: .25rem;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.btn-expand:hover { opacity: .75; }

.agent-card-footer {
  padding: .75rem 1.25rem 1.25rem;
}

.btn-chat {
  display: block;
  text-align: center;
  padding: .5rem 1rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 8px;
  font-size: .875rem;
  font-weight: 500;
  text-decoration: none;
  transition: opacity .15s;
}

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

/* ─── Empty state ────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  color: var(--color-muted);
  padding: 3rem 1rem;
  font-size: .9375rem;
}

/* ─── Utilities (usadas nas próximas páginas) ────────────────── */
[hidden] { display: none !important; }

/* ─── Responsividade mobile ──────────────────────────────────── */
@media (max-width: 768px) {
  .header-inner  { padding: .625rem 1.25rem; }
  .user-email    { display: none; }
  .catalog-main  { padding: 1.25rem; }
  .search-input  { max-width: 100%; }
}

@media (max-width: 480px) {
  .logo-text     { display: none; }
  .catalog-main  { padding: 1rem; }
  .agent-grid    { grid-template-columns: 1fr; }
  .agent-card-body   { padding: 1rem 1rem .625rem; }
  .agent-card-footer { padding: .625rem 1rem 1rem; }
}