/* ============================================
   RESET & VARIÁVEIS DO ACERVO
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg-base: #0a0a0a;
  --bg-surface: #141414;
  --bg-elevated: #1e1e1e;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --border: #2a2a2a;
  
  /* Azul da Marca Alpha */
  --accent: #00A6E6;
  --accent-hover: #008BBF;
  
  --font-sans: 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --transition: 0.2s ease;
}

body { background-color: var(--bg-base); color: var(--text-primary); font-family: var(--font-sans); line-height: 1.5; -webkit-font-smoothing: antialiased; }
button { font-family: inherit; cursor: pointer; transition: var(--transition); }
input, select { font-family: inherit; }

/* ============================================
   BOTÕES GLOBAIS
   ============================================ */
.primary { background: var(--accent); color: #fff; border: none; padding: 12px 24px; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.95rem; display: inline-flex; align-items: center; gap: 8px; justify-content: center; }
.primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0, 166, 230, 0.3); }
.ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); padding: 12px 24px; border-radius: var(--radius-sm); font-weight: 500; font-size: 0.95rem; display: inline-flex; align-items: center; gap: 8px; justify-content: center; }
.ghost:hover { border-color: var(--text-primary); color: var(--text-primary); }
.hidden { display: none !important; }

/* ============================================
   CABEÇALHO & HERO
   ============================================ */
.topbar { display: flex; justify-content: space-between; align-items: center; padding: 20px 40px; border-bottom: 1px solid var(--border); background: rgba(10, 10, 10, 0.8); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; }
.site-logo { height: 35px; object-fit: contain; }
.admin-open { background: transparent; border: none; color: var(--text-secondary); font-size: 1.2rem; padding: 8px; border-radius: 50%; border: 1px solid transparent; }
.admin-open:hover { color: var(--text-primary); border-color: var(--border); background: var(--bg-surface); }

main { max-width: 1400px; margin: 0 auto; padding: 40px 20px; }
.hero { text-align: center; margin-bottom: 40px; }
.hero h1 { font-size: 2.5rem; font-weight: 800; letter-spacing: -1px; margin-bottom: 24px; color: var(--text-primary); }

.search-shell { max-width: 600px; margin: 0 auto; position: relative; }
.search-icon { position: absolute; left: 20px; top: 50%; transform: translateY(-50%); color: var(--text-secondary); }
.search-shell input { width: 100%; padding: 16px 24px 16px 48px; font-size: 1rem; background: var(--bg-surface); border: 1px solid var(--border); color: var(--text-primary); border-radius: 50px; outline: none; transition: var(--transition); }
.search-shell input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 166, 230, 0.1); }

/* ============================================
   FILTROS E GALERIA
   ============================================ */
.filters { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-bottom: 20px; }
.filters select { background: var(--bg-surface); color: var(--text-primary); border: 1px solid var(--border); padding: 12px 20px; border-radius: 50px; font-size: 0.9rem; outline: none; cursor: pointer; transition: 0.3s; }
.filters select:focus, .filters select:hover { border-color: var(--accent); }
.result-meta { text-align: center; color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 40px; }

.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.art-card { background: var(--bg-surface); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border); cursor: pointer; transition: var(--transition); display: flex; flex-direction: column; }
.art-card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
.art-img-box { aspect-ratio: 1/1; overflow: hidden; background: #000; }
.art-img-box img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s ease; }
.art-card:hover .art-img-box img { transform: scale(1.05); }
.art-info { padding: 20px; flex-grow: 1; }
.art-info h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; line-height: 1.3; }
.art-code { font-size: 0.75rem; color: var(--accent); font-weight: 700; text-transform: uppercase; margin-bottom: 6px; display: block; }
.art-tags { font-size: 0.85rem; color: var(--text-secondary); }
.empty { text-align: center; padding: 60px; color: var(--text-secondary); grid-column: 1/-1; }

/* ============================================
   MODAIS (DIALOG)
   ============================================ */
dialog { margin: auto; background: var(--bg-surface); color: var(--text-primary); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 0; max-width: 900px; width: 95%; max-height: 90vh; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.8); }
dialog::backdrop { background: rgba(0, 0, 0, 0.85); backdrop-filter: blur(8px); }
.dialog-close { position: absolute; top: 16px; right: 16px; background: rgba(0,0,0,0.5); border: none; color: #fff; width: 36px; height: 36px; border-radius: 50%; font-size: 1.2rem; display: flex; align-items: center; justify-content: center; z-index: 10; transition: 0.3s; }
.dialog-close:hover { background: var(--accent); }

/* Modal de Visualização da Arte */
.dialog-grid { display: grid; grid-template-columns: 1fr; height: 100%; }
.dialog-image-wrap { background: #0b0b0b; display: flex; align-items: center; justify-content: center; max-height: 50vh; }
.dialog-image-wrap img { width: 100%; height: 100%; object-fit: contain; }
.dialog-info { padding: 40px; overflow-y: auto; }
.eyebrow { color: var(--accent); font-size: 0.85rem; font-weight: 800; letter-spacing: 1px; margin-bottom: 10px; }
.dialog-info h2 { font-size: 2rem; font-weight: 800; margin-bottom: 24px; line-height: 1.2; }
.info-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 32px; }
.info-list span { background: var(--bg-elevated); padding: 12px 16px; border-radius: var(--radius-sm); font-size: 0.9rem; color: var(--text-secondary); border: 1px solid var(--border); }
.info-list span strong { color: var(--text-primary); margin-right: 5px; }

/* ============================================
   PAINEL ADMINISTRATIVO (DASHBOARD PROFISSIONAL)
   ============================================ */
.admin-dialog { max-width: 1100px; width: 95%; border-radius: 20px; overflow: hidden; }

/* Tela de Login Centralizada */
.login-layout { padding: 60px 40px; display: flex; flex-direction: column; align-items: center; text-align: center; }
.login-header h2 { font-size: 1.8rem; margin-bottom: 10px; }
.login-header p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 30px; max-width: 400px; }
.login-body { width: 100%; max-width: 400px; display: flex; flex-direction: column; gap: 16px; }
.login-body input { padding: 16px; background: var(--bg-elevated); border: 1px solid var(--border); color: #fff; border-radius: var(--radius-sm); font-size: 1rem; outline: none; }
.login-body input:focus { border-color: var(--accent); }
.login-body button { padding: 16px; font-size: 1rem; margin-top: 10px; }

/* Dashboard Form */
.admin-panel:not(.login-layout) { padding: 40px; display: flex; flex-direction: column; max-height: 85vh; overflow-y: auto; }
.admin-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 30px; padding-bottom: 30px; border-bottom: 1px solid var(--border); }
.admin-head h2 { font-size: 1.8rem; margin-bottom: 5px; }
.admin-head p { font-size: 0.9rem; color: var(--text-secondary); }

/* O Segredo do Layout: Grid de 2 Colunas */
.admin-form-grid { display: grid; grid-template-columns: 350px 1fr; gap: 40px; align-items: start; }
.section-title { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; display: block; border-left: 3px solid var(--accent); padding-left: 10px; }
.form-divider { height: 1px; background: var(--border); margin: 30px 0; }

/* Coluna 1: Upload Profissional */
.form-col-left { display: flex; flex-direction: column; }
.image-upload-box { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; height: 250px; background: var(--bg-elevated); border: 2px dashed var(--border); border-radius: var(--radius-md); transition: 0.3s; cursor: pointer; padding: 20px; }
.image-upload-box:hover { border-color: var(--accent); background: rgba(0, 166, 230, 0.05); }
.image-upload-box i { font-size: 3rem; color: var(--text-secondary); margin-bottom: 15px; transition: 0.3s; }
.image-upload-box:hover i { color: var(--accent); transform: translateY(-5px); }
.image-upload-box span { font-size: 0.9rem; color: var(--text-secondary); font-weight: 500; }
.image-upload-box input[type="file"] { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }

/* Coluna 2: Campos do Formulário */
.form-col-right { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-col-right label { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); display: flex; flex-direction: column; gap: 8px; }
.form-col-right input { padding: 14px 16px; background: var(--bg-elevated); border: 1px solid var(--border); color: #fff; border-radius: var(--radius-sm); font-size: 0.95rem; outline: none; transition: 0.2s; }
.form-col-right input:focus { border-color: var(--accent); background: #222; }

/* Ações Inferiores */
.form-actions-full { grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: 16px; margin-top: 20px; padding-top: 30px; border-top: 1px solid var(--border); }

/* Lista de Artes do Admin */
.admin-list-header { margin-top: 50px; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.admin-list-header h3 { font-size: 1.2rem; color: var(--text-primary); }
.admin-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.admin-list-item { display: flex; justify-content: space-between; align-items: center; padding: 16px; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius-sm); transition: 0.2s; }
.admin-list-item:hover { border-color: var(--text-secondary); }
.admin-list-item-info strong { display: block; font-size: 0.95rem; margin-bottom: 4px; }
.admin-list-item-info span { font-size: 0.8rem; color: var(--accent); font-weight: bold; background: rgba(0, 166, 230, 0.1); padding: 2px 8px; border-radius: 4px; }
.admin-list-actions { display: flex; gap: 8px; }
.btn-edit { background: transparent; border: 1px solid var(--text-secondary); color: var(--text-secondary); padding: 6px 12px; border-radius: 6px; font-size: 0.8rem; }
.btn-edit:hover { background: #fff; color: #000; border-color: #fff; }
.btn-del { background: transparent; border: 1px solid #ff4757; color: #ff4757; padding: 6px 12px; border-radius: 6px; font-size: 0.8rem; }
.btn-del:hover { background: #ff4757; color: #fff; }

/* TOAST (Feedback visual) */
.toast { position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%) translateY(100px); background: var(--accent); color: #fff; padding: 14px 28px; border-radius: 50px; font-weight: 600; font-size: 0.95rem; z-index: 9999; transition: transform 0.4s cubic-bezier(0.1, 0.8, 0.2, 1); opacity: 0; box-shadow: 0 10px 30px rgba(0,166,230,0.4); display: flex; align-items: center; gap: 10px; }
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ============================================
   RESPONSIVIDADE (MOBILE & TABLET)
   ============================================ */
@media (max-width: 1024px) {
  .admin-form-grid { grid-template-columns: 250px 1fr; gap: 30px; }
}

@media (max-width: 768px) {
  .topbar { padding: 15px 20px; }
  .dialog-grid { grid-template-columns: 1fr; }
  .dialog-image-wrap { max-height: 40vh; }
  
  /* Formulario empilha no celular */
  .admin-form-grid { grid-template-columns: 1fr; gap: 20px; }
  .form-row { grid-template-columns: 1fr; gap: 20px; }
  .admin-panel:not(.login-layout) { padding: 20px; }
  .form-actions-full { flex-direction: column-reverse; }
  .form-actions-full button { width: 100%; }
}

@media (min-width: 768px) {
  .dialog-grid { grid-template-columns: 1fr 1fr; }
  .dialog-image-wrap { max-height: none; height: 60vh; border-right: 1px solid var(--border); }
}