:root {
    --color-bg: #f4f6f8;
    --color-surface: #ffffff;
    --color-border: #e0e4e9;
    --color-text: #1f2933;
    --color-muted: #6b7280;
    --color-primary: #1d4ed8;
    --color-primary-dark: #1e3a8a;
    --color-danger: #dc2626;
    --color-warning: #b45309;
    --color-success: #15803d;
    --radius: 6px;
    --sidebar-width: 220px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 14px;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Login */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--color-primary-dark);
}
.login-box {
    background: var(--color-surface);
    padding: 32px;
    border-radius: var(--radius);
    width: 320px;
    box-shadow: 0 10px 30px rgba(0,0,0,.2);
}
.login-box h1 { font-size: 18px; margin: 0 0 20px; text-align: center; }
.login-box label { display: block; margin-top: 12px; margin-bottom: 4px; font-weight: 600; }
.login-box input { width: 100%; padding: 8px 10px; border: 1px solid var(--color-border); border-radius: var(--radius); }
.login-box button { margin-top: 20px; width: 100%; }

/* App shell */
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-primary-dark);
    color: #fff;
    flex-shrink: 0;
}
.sidebar-brand { padding: 20px 16px; font-weight: 700; font-size: 15px; border-bottom: 1px solid rgba(255,255,255,.15); }
.sidebar ul { list-style: none; margin: 0; padding: 8px 0; }
.sidebar li a { display: block; padding: 10px 16px; color: #dbeafe; }
.sidebar li a:hover { background: rgba(255,255,255,.08); text-decoration: none; }
.sidebar li.active a { background: var(--color-primary); color: #fff; font-weight: 600; }

.app-content { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}
.search-form input { width: 320px; max-width: 100%; padding: 7px 10px; border: 1px solid var(--color-border); border-radius: var(--radius); }
.topbar-user { display: flex; align-items: center; gap: 12px; color: var(--color-muted); }
.link-button { background: none; border: none; color: var(--color-primary); cursor: pointer; padding: 0; font-size: 14px; }
.link-button:hover { text-decoration: underline; }

.main-area { padding: 24px; flex: 1; }

h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 16px; margin: 24px 0 12px; }

/* Alerts */
.alert { padding: 10px 14px; border-radius: var(--radius); margin-bottom: 16px; }
.alert-success { background: #dcfce7; color: var(--color-success); }
.alert-error { background: #fee2e2; color: var(--color-danger); }
.alert-warning { background: #fef3c7; color: var(--color-warning); }

/* Buttons */
button, .button {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    padding: 8px 14px;
    font-size: 14px;
    cursor: pointer;
}
button:hover, .button:hover { background: var(--color-primary-dark); text-decoration: none; color: #fff; }
button.secondary, .button.secondary { background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); }
button.secondary:hover, .button.secondary:hover { background: var(--color-bg); color: var(--color-text); }
button.danger { background: var(--color-danger); }

/* Cards / panels */
.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 20px;
}

/* Forms */
form.stacked label { display: block; font-weight: 600; margin: 10px 0 4px; }
form.stacked input, form.stacked select, form.stacked textarea {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 14px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-actions { margin-top: 16px; display: flex; gap: 8px; }

/* Tables */
table { width: 100%; border-collapse: collapse; background: var(--color-surface); }
table th, table td { padding: 8px 10px; border-bottom: 1px solid var(--color-border); text-align: left; }
table th { font-size: 12px; text-transform: uppercase; color: var(--color-muted); }
table tr:hover { background: var(--color-bg); }

.filters { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; }
.filters select, .filters input { padding: 7px 10px; border: 1px solid var(--color-border); border-radius: var(--radius); }

/* Badges de status de próxima ação */
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px; font-weight: 600; }
.badge-atrasada { background: #fee2e2; color: var(--color-danger); }
.badge-hoje { background: #fef3c7; color: var(--color-warning); }
.badge-futura { background: #e0f2fe; color: #0369a1; }
.badge-sem_acao { background: #f3f4f6; color: var(--color-muted); }
.badge-stage { background: #e0e7ff; color: #3730a3; }

/* Kanban */
.kanban-board { display: flex; gap: 12px; overflow-x: auto; padding-bottom: 12px; }
.kanban-column { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); width: 220px; flex-shrink: 0; }
.kanban-column h3 { font-size: 13px; padding: 10px; margin: 0; border-bottom: 1px solid var(--color-border); background: var(--color-bg); }
.kanban-cards { padding: 8px; min-height: 60px; }
.kanban-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 8px;
    margin-bottom: 8px;
    cursor: grab;
    font-size: 13px;
}
.kanban-card strong { display: block; margin-bottom: 4px; }
.kanban-column.drag-over { background: #eff6ff; }

/* Timeline */
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { padding: 10px 0; border-bottom: 1px solid var(--color-border); }
.timeline .meta { color: var(--color-muted); font-size: 12px; }

.pagination { margin-top: 16px; display: flex; gap: 8px; }
.text-muted { color: var(--color-muted); }
.mt-0 { margin-top: 0; }

@media (max-width: 800px) {
    .app-shell { flex-direction: column; }
    .sidebar { width: 100%; }
    .sidebar ul { display: flex; overflow-x: auto; }
    .form-row { grid-template-columns: 1fr; }
    .search-form input { width: 100%; }
}