:root {
    --green-main: #006837;
    --green-dark: #004225;
    --brown-main: #7b4a25;
    --brown-dark: #4d2c15;
    --text-dark: #212529;
    --text-muted: #6c757d;
    --bg-light: #f9f9f9;
}

/* Corpo e layout base */
body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    min-height: 100vh;
}

/* SIDEBAR com degradê institucional */
.sidebar {
    background: linear-gradient(180deg, var(--green-dark), var(--brown-main));
    min-height: 100vh;
    padding-top: 1rem;
    color: #fff;
    border-right: 1px solid rgba(0, 0, 0, 0.1);
}

.sidebar .brand {
    text-align: center;
    margin-bottom: 1rem;
}

.sidebar .brand img {
    max-width: 120px;
    margin-bottom: 0.5rem;
}

.sidebar .brand h6 {
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    color: rgba(255,255,255,0.9);
    letter-spacing: .06em;
}

.sidebar a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    padding: 10px 18px;
    display: block;
    border-radius: 8px;
    margin: 3px 6px;
    transition: 0.3s;
    font-size: 0.92rem;
}

.sidebar a i {
    width: 18px;
}

.sidebar a:hover,
.sidebar a.active {
    background-color: rgba(0, 0, 0, 0.18);
    color: #fff;
}

/* Cabeçalho do painel */
.header-bar {
    background-color: #fff;
    border-bottom: 1px solid #e9ecef;
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-bar h5 {
    margin: 0;
    font-weight: 600;
    color: var(--green-dark);
}

.header-bar .user-info {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Cards */
.card {
    background-color: #fff;
    border: 1px solid #e3e3e3;
    border-radius: 12px;
    padding: 1.5rem;
    color: var(--text-dark);
    transition: all 0.3s;
}

.card:hover {
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
}

/* Botões */
.btn-primary {
    background-color: var(--green-main);
    border: none;
}

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

.btn-outline-light {
    color: var(--green-dark);
    border: 1px solid var(--green-main);
}

.btn-outline-light:hover {
    background-color: var(--green-main);
    color: #fff;
}

/* Login */
.login-wrapper {
    background: linear-gradient(135deg, var(--green-dark), var(--brown-main));
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.login-logo {
    margin-bottom: 1.5rem;
    text-align: center;
}

.login-logo img {
    max-width: 200px;
}

.login-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.18);
    color: var(--text-dark);
    max-width: 400px;
    width: 100%;
    padding: 2rem;
}

.login-card small {
    color: var(--text-muted);
}