/* =========================================
   1. RESET E VARIÁVEIS
   ========================================= */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #64748b;
    --danger: #dc2626;
    --bg: #f4f6f8;
    --card-bg: #ffffff;
    --text: #1e293b;
    --muted: #64748b;
    --border: #e2e8f0;
    --radius: 10px;
    --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
}

body {
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px;
}

/* =========================================
   2. HEADER E NAVEGAÇÃO
   ========================================= */
.site-header {
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between; /* Logo na esquerda, botões na direita */
    padding: 16px 20px;
    gap: 20px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    flex-shrink: 0;
}

.main-nav {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center; /* Centraliza o menu no espaço disponível */
    flex: 1; /* Faz o menu ocupar o espaço do meio */
}

.main-nav a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: .2s;
    white-space: nowrap;
}

.main-nav a:hover { 
    color: var(--primary); 
    border-color: var(--primary); 
}

.header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-shrink: 0;
}

/* Botões de Ação do Header (Menu e Tema) */
.menu-toggle,
.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px;
    cursor: pointer;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, border-color .2s, color .2s;
}

.menu-toggle:hover,
.theme-toggle:hover {
    background: #f1f5f9;
    border-color: var(--primary);
    color: var(--primary);
}

/* Lógica de exibição dos ícones de Sol e Lua */
.theme-icon { display: none; }
html[data-theme="light"] .theme-icon-light { display: block; }
html[data-theme="dark"] .theme-icon-dark { display: block; }

/* O botão hambúrguer fica escondido no desktop */
.menu-toggle {
    display: none; 
}

/* =========================================
   3. CONTEÚDO PRINCIPAL (MAIN)
   ========================================= */
.main-content {
    flex: 1 0 auto; /* Empurra o banner/footer para o final da tela */
    padding: 40px 20px 60px;
}

h1 { font-size: 2rem; margin-bottom: 12px; color: var(--text); }
h2 { font-size: 1.3rem; margin-bottom: 10px; }
p  { margin-bottom: 16px; color: var(--muted); }

/* Hero (Home) */
.hero {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, #dbeafe, #ede9fe);
    border-radius: var(--radius);
    margin-bottom: 40px;
}
.hero h1 { color: var(--primary-dark); }
.hero p  { font-size: 1.1rem; }

/* Cards (Home) */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}
.card {
    background: var(--card-bg);
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--text);
    border: 1px solid var(--border);
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0,0,0,.08);
    border-color: var(--primary);
}
.card-icon { font-size: 2rem; display: block; margin-bottom: 12px; }
.card h2 { color: var(--primary); margin-bottom: 8px; }

/* =========================================
   4. FORMULÁRIOS E BOTÕES
   ========================================= */
.form {
    background: var(--card-bg);
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 30px;
}
.form label {
    display: block;
    margin-bottom: 16px;
    font-weight: 500;
    color: var(--text);
}
.form input,
.form textarea {
    width: 100%;
    margin-top: 6px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text);
    background: #fff;
    transition: border-color .2s, box-shadow .2s;
}
.form input:focus,
.form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.form input[type="file"] {
    background: #f8fafc;
    cursor: pointer;
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background .2s, transform .1s;
    font-family: inherit;
}
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #e2e8f0; color: var(--text); }
.btn-secondary:hover { background: #cbd5e1; }

/* Alertas */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-weight: 500; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }

/* Resultados */
.resultado {
    background: var(--card-bg);
    padding: 28px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.resultado h2 { color: var(--primary); margin-bottom: 16px; }
.resultado-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}
.resultado-item {
    background: #f8fafc;
    padding: 16px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--border);
}
.resultado-item span { display: block; font-size: .85rem; color: var(--muted); margin-bottom: 4px; }
.resultado-item strong { font-size: 1.3rem; color: var(--text); }
.resultado-item.destaque {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-color: var(--primary);
}
.resultado-item.destaque span { color: #dbeafe; }
.resultado-item.destaque strong { color: #fff; font-size: 1.5rem; }

/* =========================================
   5. KANBAN
   ========================================= */
.kanban-toolbar {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.kanban-toolbar input {
    flex: 1;
    min-width: 220px;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
}
.kanban-toolbar input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.kanban-board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.kanban-column {
    background: #eef2f7;
    border-radius: var(--radius);
    padding: 16px;
    min-height: 240px;
    border: 1px solid var(--border);
}
.kanban-column h3 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--muted);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border);
}
.kanban-list { 
    display: flex; 
    flex-direction: column; 
    gap: 10px;
    min-height: 60px;
    transition: background .15s, box-shadow .15s;
    border-radius: 8px;
}
.kanban-list.drag-over {
    background: rgba(37, 99, 235, .08);
    box-shadow: inset 0 0 0 2px rgba(37, 99, 235, .35);
}
.kanban-card {
    background: #fff;
    padding: 12px 14px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
    animation: fadeIn .2s ease;
    cursor: grab;
}
.kanban-card.dragging { opacity: .45; cursor: grabbing; }
.kanban-card-text { flex: 1; word-break: break-word; }
.kanban-card-actions { display: flex; gap: 4px; flex-shrink: 0; }
.kanban-btn {
    border: none;
    background: #f1f5f9;
    border-radius: 6px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: .9rem;
    transition: background .2s;
    line-height: 1;
}
.kanban-btn:hover { background: #e2e8f0; }
.kanban-btn.danger:hover { background: #fee2e2; }
.kanban-empty {
    text-align: center;
    color: var(--muted);
    font-size: .85rem;
    padding: 16px 8px;
    border: 2px dashed var(--border);
    border-radius: 8px;
}
.kanban-toolbar .btn { padding: 10px 14px; font-size: .95rem; margin: 0; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; } }

/* =========================================
   6. CALCULADORA
   ========================================= */
.sugestao {
    margin-top: 24px;
    padding: 18px;
    background: #eff6ff;
    border-left: 4px solid var(--primary);
    border-radius: 8px;
}
.sugestao h3 { margin: 0 0 8px; font-size: 1rem; color: var(--primary-dark); }
.sugestao p  { margin: 0; color: var(--text); }

.grafico { margin-top: 28px; }
.grafico h3 { margin: 0 0 12px; font-size: 1rem; color: var(--text); }

.barra {
    display: flex;
    height: 32px;
    border-radius: 8px;
    overflow: hidden;
    background: #e2e8f0;
    margin-bottom: 12px;
}
.barra-custo, .barra-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: .8rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    min-width: 0;
    transition: width .3s ease;
}
.barra-custo { background: #dc2626; }
.barra-meta  { background: #16a34a; }
.barra-custo span, .barra-meta span { padding: 0 8px; }
.legenda {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    font-size: .9rem;
    color: var(--muted);
}
.legenda .dot {
    display: inline-block;
    width: 10px; height: 10px;
    border-radius: 50%;
    margin-right: 4px;
    vertical-align: middle;
}
.dot-custo { background: #dc2626; }
.dot-meta  { background: #16a34a; }

/* =========================================
   7. GERADOR DE SENHAS E UPLOAD
   ========================================= */
.senha-saida { margin-bottom: 24px; }
.senha-saida > label { display: block; margin-bottom: 6px; font-weight: 500; }
.senha-saida input[type="text"] {
    width: 100%; padding: 16px 18px;
    border: 1px solid var(--border); border-radius: 8px;
    font-family: ui-monospace, monospace;
    font-size: 1.2rem; text-align: center; letter-spacing: 2px;
    background: #f8fafc; color: var(--text); word-break: break-all;
}
.senha-saida input[type="text"]:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}
.senha-acoes { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.senha-acoes .btn { flex: 1 1 160px; margin: 0; }
.senha-opcoes { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.senha-len { display: block; font-weight: 500; }
.senha-len output { font-weight: 700; color: var(--primary); font-size: 1.1rem; }
.senha-len input[type="range"] { width: 100%; margin-top: 8px; accent-color: var(--primary); }
.senha-checks {
    border: 1px solid var(--border); border-radius: 8px;
    padding: 12px 16px; background: #f8fafc;
}
.senha-checks legend { padding: 0 6px; font-size: .85rem; color: var(--muted); font-weight: 600; }
.senha-checks label { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; font-weight: 400; cursor: pointer; }
.senha-checks label:last-child { margin-bottom: 0; }
.senha-checks input[type="checkbox"] { width: auto; margin: 0; accent-color: var(--primary); }
.senha-forca {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 16px; background: #f8fafc;
    border: 1px solid var(--border); border-radius: 8px;
    font-size: .9rem; color: var(--muted);
}
.senha-forca > span { font-weight: 600; color: var(--text); }
.senha-forca-barra { flex: 1; height: 8px; background: #e2e8f0; border-radius: 4px; overflow: hidden; }
.senha-forca-fill { height: 100%; width: 0; background: #94a3b8; transition: width .25s ease, background .25s ease; border-radius: 4px; }
.senha-forca-fill.fraca   { background: #dc2626; }
.senha-forca-fill.media   { background: #f59e0b; }
.senha-forca-fill.forte   { background: #2563eb; }
.senha-forca-fill.otima   { background: #16a34a; }
.senha-forca > strong { min-width: 90px; text-align: right; color: var(--text); font-size: .85rem; }

/* Upload de Logo */
.input-file-hidden { display: none !important; }
.upload-logo-wrapper {
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
    background: #f8fafc; padding: 12px; border: 1px dashed var(--border); border-radius: 8px;
}
.btn-upload { margin: 0 !important; padding: 8px 16px; display: flex; align-items: center; gap: 8px; }
.upload-filename { font-size: 0.85rem; color: var(--muted); flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 200px; }
.btn-remover-upload { margin: 0 !important; padding: 8px 16px; background: #fee2e2 !important; color: #dc2626 !important; border: 1px solid #fca5a5 !important; display: flex; align-items: center; gap: 8px; }
.btn-remover-upload:hover { background: #fecaca !important; }
.preview-box {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 12px; background: #fff; border: 1px solid var(--border);
    border-radius: 8px; box-shadow: var(--shadow);
}
.preview-box img { max-height: 80px; max-width: 250px; object-fit: contain; }

/* =========================================
   8. BANNER E FOOTER (Conversão)
   ========================================= */
.banner-cta {
    background: var(--card-bg);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 40px 0;
    margin-top: 60px;
    flex-shrink: 0;
}
.banner-cta-content { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.banner-cta-text { flex: 1 1 400px; }
.banner-badge {
    display: inline-block; background: rgba(37, 99, 235, 0.1); color: var(--primary);
    font-size: 0.8rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 1px; padding: 4px 10px; border-radius: 20px; margin-bottom: 12px;
}
.banner-cta-text h2 { font-size: 1.5rem; color: var(--text); margin: 0 0 8px; letter-spacing: -0.5px; }
.banner-cta-text p { font-size: 1rem; color: var(--muted); margin: 0; line-height: 1.6; }
.banner-cta-text strong { color: var(--text); }
.banner-cta-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; flex: 0 1 auto; }
.btn-banner {
    width: 100%; text-align: center; padding: 12px 28px; font-size: 1.05rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25); transition: transform 0.2s, box-shadow 0.2s;
}
.btn-banner:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35); }
.btn-banner-outline {
    width: 100%; text-align: center; background: transparent; border: 2px solid var(--border);
    color: var(--text); padding: 10px 28px; font-size: 1.05rem; margin: 0;
}
.btn-banner-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(37, 99, 235, 0.05); }
.banner-link {
    display: inline-block; margin-top: 8px; color: var(--primary); font-weight: 600;
    text-decoration: underline; font-size: 0.9rem; width: 100%; text-align: center;
}
.banner-link:hover { color: var(--primary-dark); }

.site-footer {
    background: #fff; border-top: 1px solid var(--border);
    padding: 20px 0; text-align: center; color: var(--muted); font-size: .9rem;
    flex-shrink: 0;
}

/* =========================================
   9. MODO ESCURO (DARK THEME)
   ========================================= */
html[data-theme="dark"] {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #94a3b8;
    --danger: #ef4444;
    --bg: #0f172a;
    --card-bg: #1e293b;
    --text: #f8fafc;
    --muted: #94a3b8;
    --border: #334155;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
}
html[data-theme="dark"] body { background: var(--bg); color: var(--text); }
html[data-theme="dark"] .site-header,
html[data-theme="dark"] .site-footer,
html[data-theme="dark"] .kanban-column { background: var(--card-bg); border-color: var(--border); }
html[data-theme="dark"] .main-nav a { color: var(--text); }
html[data-theme="dark"] .main-nav a:hover { color: var(--primary); }
html[data-theme="dark"] .form input,
html[data-theme="dark"] .form textarea,
html[data-theme="dark"] .kanban-toolbar input { background: #0f172a; color: var(--text); border-color: var(--border); }
html[data-theme="dark"] .form input:focus,
html[data-theme="dark"] .form textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25); }
html[data-theme="dark"] .form input[type="file"] { background: #0f172a; }
html[data-theme="dark"] .btn-secondary { background: #334155; color: var(--text); }
html[data-theme="dark"] .btn-secondary:hover { background: #475569; }
html[data-theme="dark"] .card,
html[data-theme="dark"] .resultado,
html[data-theme="dark"] .resultado-item { background: var(--card-bg); border-color: var(--border); color: var(--text); }
html[data-theme="dark"] .resultado-item { background: #0f172a; }
html[data-theme="dark"] .kanban-card { background: var(--card-bg); color: var(--text); border-color: var(--border); }
html[data-theme="dark"] .kanban-empty { border-color: var(--border); color: var(--muted); }
html[data-theme="dark"] .menu-toggle:hover,
html[data-theme="dark"] .theme-toggle:hover { background: #334155; }
html[data-theme="dark"] .upload-logo-wrapper { background: #0f172a; }
html[data-theme="dark"] .btn-remover-upload { background: rgba(220, 38, 38, 0.15) !important; color: #fca5a5 !important; border-color: #7f1d1d !important; }
html[data-theme="dark"] .preview-box { background: #1e293b; }
html[data-theme="dark"] .banner-cta { background: linear-gradient(135deg, var(--card-bg) 0%, #0f172a 100%); }
html[data-theme="dark"] .banner-badge { background: rgba(59, 130, 246, 0.15); }

/* =========================================
   10. RESPONSIVIDADE (MOBILE)
   ========================================= */
@media (max-width: 850px) {
    /* Header Mobile */
    .header-inner { flex-wrap: wrap; }
    .logo { flex: 1; }
    
    .menu-toggle { 
        display: flex; /* Mostra o hambúrguer */
    }
    
    .main-nav {
        display: none; /* Esconde o menu no mobile */
        width: 100%;
        flex-direction: column;
        gap: 8px;
        margin-top: 16px;
        padding-top: 16px;
        border-top: 1px solid var(--border);
    }
    .main-nav.show { display: flex; } /* Classe que o JS ativa */
    .main-nav a { padding: 10px 0; font-size: 1.1rem; }

    /* Banner */
    .banner-cta { padding: 30px 0; margin-top: 40px; }
    .banner-cta-content { flex-direction: column; text-align: center; }
    .banner-cta-text h2 { font-size: 1.3rem; }
    .banner-cta-actions { width: 100%; align-items: stretch; flex-direction: column; gap: 10px; }
    .banner-link { margin-top: 8px; }
}

@media (max-width: 800px) {
    .kanban-board { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .grid-2 { grid-template-columns: 1fr; }
    .senha-opcoes { grid-template-columns: 1fr; }
    .kanban-toolbar .btn { width: 100%; margin: 0; }
    .kanban-card { cursor: default; }
}

/* =========================================
   Popup de Instalação PWA
   ========================================= */
.pwa-popup {
    display: none; /* Escondido por padrão */
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 9999;
    align-items: center;
    gap: 16px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    max-width: 420px;
    width: calc(100% - 40px);
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Classe que o JS usa para mostrar o popup */
.pwa-popup.active {
    display: flex;
}

@keyframes slideUp {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ... mantenha o resto do CSS do popup (ícone, textos, botões) igual ... */

.pwa-popup-icon {
    background: var(--primary);
    color: #fff;
    padding: 10px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pwa-popup-content {
    flex: 1;
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--text);
}

.pwa-popup-content strong {
    display: block;
    font-size: 1rem;
    margin-bottom: 2px;
    color: var(--text);
}

.pwa-popup-content p {
    margin: 0;
    color: var(--muted);
    font-size: 0.8rem;
}

.pwa-popup-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pwa-btn-primary {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
}

.pwa-btn-primary:hover {
    background: var(--primary-dark);
}

.pwa-btn-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--muted);
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s;
}

.pwa-btn-close:hover {
    color: var(--danger);
}

/* Ajuste Mobile */
@media (max-width: 600px) {
    .pwa-popup {
        bottom: 0;
        left: 0;
        width: 100%;
        border-radius: 12px 12px 0 0;
        flex-wrap: wrap;
    }
    .pwa-popup-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 10px;
    }
}

/* Esconde o popup no modo escuro se necessário trocar cores */
html[data-theme="dark"] .pwa-popup {
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6);
}