:root {
    --bg-page: #151C17;
    --surface: rgba(32, 42, 35, 0.96);
    --text-main: #EEF2EA;
    --primary: #9CAF88;
    --surface-soft: #263129;
    --surface-hover: #2C3A30;
    --text-soft: #B8C2B4;
    --text-muted: #8D978A;
    --primary-dark: #81986F;
    --primary-soft: rgba(156, 175, 136, 0.13);
    --primary-soft-hover: rgba(156, 175, 136, 0.22);
    --error: #D66A6A;
    --error-soft: rgba(214, 106, 106, 0.14);
    --border: rgba(238, 242, 234, 0.11);
    --border-soft: rgba(238, 242, 234, 0.07);
    --button-text: #111611;
    --shadow-soft: 0 16px 34px rgba(0, 0, 0, 0.22);
    --shadow-hover: 0 12px 26px rgba(0, 0, 0, 0.28);
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: Arial, Helvetica, sans-serif;
    background-color: var(--bg-page);
    color: var(--text-main);
}

.app-layout {
    min-height: 100vh;
    display: flex;
    background: radial-gradient(circle at top left, rgba(156, 175, 136, 0.08), transparent 34%), linear-gradient(135deg, #151C17 0%, #192119 48%, #101510 100%);
}

/* Sidebar */

.app-sidebar {
    width: 260px;
    height: 100vh;
    position: sticky;
    top: 0;
    background-color: #1E2A22;
    color: var(--text-main);
    padding: 28px 22px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    border-right: 1px solid var(--border-soft);
    box-shadow: 12px 0 28px rgba(0, 0, 0, 0.16);
}

/* Brand */

.brand {
    margin-bottom: 34px;
}

    .brand h2 {
        margin: 0;
        color: var(--text-main);
        font-size: 26px;
        font-weight: 700;
        letter-spacing: -0.6px;
    }

    .brand p {
        margin: 6px 0 0;
        color: var(--text-muted);
        font-size: 13px;
    }

/* Navegación */

.sidebar-nav {
    flex: 1;
}

    .sidebar-nav form {
        margin-bottom: 10px;
    }

    .sidebar-nav button,
    .btn-logout {
        width: 100%;
        min-height: 42px;
        padding: 11px 13px;
        border-radius: 10px;
        border: 1px solid transparent;
        background-color: transparent;
        color: var(--text-soft);
        cursor: pointer;
        text-align: left;
        font-size: 14px;
        font-weight: 600;
        transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.12s ease;
    }

        .sidebar-nav button:hover {
            background-color: var(--primary-soft);
            border-color: var(--border);
            color: var(--text-main);
            transform: translateX(2px);
        }

/* Footer sidebar */

.sidebar-footer {
    padding-top: 22px;
    border-top: 1px solid var(--border-soft);
}

.session-info {
    margin-bottom: 14px;
}

    .session-info span {
        display: block;
        color: var(--text-main);
        font-size: 14px;
        font-weight: 700;
    }

    .session-info small {
        color: var(--text-muted);
        font-size: 12px;
    }

/* Cerrar sesión */

.btn-logout {
    background-color: var(--error-soft);
    color: var(--error);
    border: 1px solid rgba(214, 106, 106, 0.24);
}

    .btn-logout:hover {
        background-color: rgba(214, 106, 106, 0.22);
        border-color: rgba(214, 106, 106, 0.36);
        color: #F5B6B6;
        transform: translateX(2px);
    }

/* Contenido */

.app-content {
    flex: 1;
    min-height: 100vh;
    box-sizing: border-box;
}