:root {
    --bg: #eef1f5;
    --panel: #ffffff;
    --panel-border: #dde3ea;
    --text: #1f2937;
    --text-dim: #6b7280;
    --accent: #2f80c8;
    --error: #c0392b;
    --success: #2f9e44;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Segoe UI", system-ui, sans-serif;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.card {
    background: var(--panel);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 32px;
    max-width: 420px;
    width: 100%;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

h1 {
    margin: 0 0 4px;
    font-size: 24px;
    color: var(--accent);
}

.subtitle {
    color: var(--text-dim);
    font-size: 13px;
    margin: 0 0 24px;
}

.step { display: none; }
.step.active { display: block; }

label {
    display: block;
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 6px;
}

input[type="text"], input[type="email"], input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--panel-border);
    background: #f8fafc;
    color: var(--text);
    font-size: 15px;
    margin-bottom: 16px;
}

input:focus { outline: 2px solid var(--accent); }

button {
    width: 100%;
    padding: 11px;
    border-radius: 8px;
    border: none;
    background: var(--accent);
    color: #ffffff;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    margin-bottom: 10px;
}

button:hover { filter: brightness(1.08); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

button.secondary {
    background: transparent;
    border: 1px solid var(--panel-border);
    color: var(--text);
}

.message {
    font-size: 13.5px;
    padding: 10px 12px;
    border-radius: 8px;
    margin-bottom: 16px;
    display: none;
}

.message.error { display: block; background: rgba(192, 57, 43, 0.1); color: var(--error); }
.message.success { display: block; background: rgba(47, 158, 68, 0.1); color: var(--success); }

.divider {
    text-align: center;
    color: var(--text-dim);
    font-size: 12px;
    margin: 16px 0;
}

.activation-code {
    font-size: 32px;
    letter-spacing: 4px;
    text-align: center;
    color: var(--accent);
    font-weight: 700;
    padding: 16px;
    background: #f8fafc;
    border-radius: 10px;
    margin-bottom: 16px;
}

/* Menu lateral (paginas do admin com AdminAuth::requireLogin(), nao a tela de
   login) - body.has-sidebar troca o body de "cartao centralizado" (login,
   activate.php) pra um layout de sidebar+conteudo ocupando a tela toda. */
body.has-sidebar {
    align-items: stretch;
    justify-content: flex-start;
    padding: 0;
}

.admin-sidebar {
    width: 230px;
    flex-shrink: 0;
    background: var(--panel);
    border-right: 1px solid var(--panel-border);
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.admin-sidebar h2 {
    font-size: 16px;
    color: var(--accent);
    margin: 0 0 2px;
    padding: 0 12px;
}

.admin-sidebar .subtitle { margin: 0 0 20px; padding: 0 12px; }

.admin-sidebar a {
    display: block;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
}

.admin-sidebar a:hover { background: var(--bg); }
.admin-sidebar a.active { background: var(--accent); color: #ffffff; }
.admin-sidebar a.logout { margin-top: auto; color: var(--error); }

.admin-main {
    flex: 1;
    min-width: 0;
    padding: 32px;
    overflow-x: auto;
}

.admin-main .card { max-width: 900px; }

.admin-menu-toggle {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 20;
    width: auto;
    padding: 8px 14px;
    margin: 0;
    font-size: 18px;
    line-height: 1;
}

.admin-sidebar-backdrop { display: none; }

@media (max-width: 760px) {
    body.has-sidebar { flex-direction: column; }

    .admin-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        transform: translateX(-100%);
        transition: transform 0.2s ease;
        z-index: 25;
        box-shadow: 2px 0 16px rgba(15, 23, 42, 0.2);
    }

    .admin-sidebar.open { transform: translateX(0); }

    .admin-menu-toggle { display: block; }

    .admin-main { padding: 64px 16px 24px; }

    .admin-sidebar-backdrop.open {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.3);
        z-index: 20;
    }
}

/* Filtro de licencas (dashboard) */
.filter-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 12px;
    margin: 12px 0 4px;
}

.filter-row .field { display: flex; flex-direction: column; }
.filter-row label { margin-bottom: 4px; }
.filter-row input[type="date"] {
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--panel-border);
    background: #f8fafc;
    color: var(--text);
    font-size: 14px;
}
.filter-row button { width: auto; padding: 9px 16px; margin-bottom: 0; }
.filter-row .clear-link { font-size: 13px; color: var(--text-dim); align-self: center; }